echanical metal-working without essentially removing material and punching metal (B21)

B21            echanical metal-working without essentially removing material; punching metal(51158)

Aluminium bottle with neck thread produced by impact extrusion pressing, made of recycled aluminium and reinforced alloys // 2642231
FIELD: metallurgy.SUBSTANCE: production method of impact extrusion pressing of metal bottle with thread for beverages includes production aluminium alloy blanks mixed from scrap aluminium alloy and relatively clean aluminium alloy. Said aluminium alloy scrap contains: between about 0.20 wt % and about 0.32 wt % Si, between about 0.47 wt % and about 0.59 wt % Fe, between about 0.10 wt % and about 0.22 wt % Cu, between about 0.78 wt % and about 0.90 wt % Mn, between about 0.54 wt % and about 0.66 wt % Mg, between about 0.06 wt % and about 0.18 wt % Zn, between about 0.00 wt % and about 0.08 wt % Cr, between about 0.00 wt % and about 0.08 wt % Ti, deforming said blank into a preferred shape by the method of pressing - by impact extrusion to form said metal bottle and forming a thread on the neck portion of said metal bottle. Said thread is configured to receive a threaded cover which can optionally be opened and closed after filling the metal bottle with beverage.EFFECT: producing the bottle blank with strength characteristics sufficient to enable threading on the bottle neck designed to be screwed onto such threaded neck of the threaded cover.21 cl, 12 tbl, 13 dwg

ethod for installing end cap // 2641944
FIELD: metallurgy.SUBSTANCE: container having an opening with a folded edge is used. The end cap has a vertical edge at least partially extending along its perimeter. The end cap is placed inside a housing at or near the opening, so that the vertical edge is displaced from the end cap inwards relative to the container housing, a bending tool is brought through into contact the container housing with the cover vertical edge and force is applied by the bending tool to said edge to bend it around the bent edge of the housing hole to produce engaged bends.EFFECT: quality of the container is improved by eliminating scratches on its inner surface.12 cl, 5 dwg

ethod for producing straight-seam pipe with butt joint of metal blank and tube-forming device // 2641937
FIELD: metallurgy.SUBSTANCE: invention relates to method for producing straight-seam tubes with butt joint which are made of used metal pipes of larger diameter by longitudinal cutting of metal strip from the entire tube length with subsequent moulding. The metal blank is produced from a tube of larger diameter. A strip of metal is longitudinally cut from the entire length of the tube. The tube is formed, and its edges are compressed on tube-forming device. In this case, a device in the form of a squeezing hydraulic rig is used, the upper and lower parts of which are provided with radial sectional inserts according to the formed diameter of the tube. Then the inner seam of the tube and the outer seam of tube are successively welded by a welding semiautomatic machine. Deformation of the tube is eliminated by hydraulic jacks on the device for inner radial straightening, in the form of ellipsoid on the device for outer radial straightening, and the chamfers are removed from the tube ends on the device for linear straightening.EFFECT: expanded technological capabilities.2 cl, 3 dwg
Hollow poppet valve // 2641870
FIELD: engines and pumps.SUBSTANCE: hollow poppet valve (10) has a head (14) formed integrally with one end side of the stem (12). The valve (10) comprises a hollow part (S1) disposed on the head side (14) and a hollow part (S2) located on the side of the stem (12). The hollow part (S1) and the hollow part (S2) are separated from each other by a partition (15) formed in the region of the halving part (13) between the valve head (14) and the valve stem (12). Hollow part (S1), located on the side of the head (14), formed by partitioning (15), spherical indentations hull heads (14) and the closing element forming the bottom of hollow parts (S1), located on the side of the head (14). On the head side facing the combustion chamber (14), in a hollow part (S1), located on the side of the head, there is heat-insulating part containing gas or material, which has a lower thermal conductivity compared with metal forming valve (10). In the hollow part (S2) located on the side of the stem (12), there is a cooling part, into which the coolant (19) is loaded. Thermal insulation effect is achieved in the heat-insulating part. The heat dissipating effect is achieved in the cooling part. By specifying at least one out of the wall (15) in the direction of up and down and the length of the partitions (15) in the direction of upside-down is provided by regulation of the relative values of heat-insulating and heat dissipating effect. A method for controlling the relative values of the heat-insulating effect and the heat-dissipating effect of the hollow poppet valve is disclosed.EFFECT: increase the mechanical strength of the poppet valve.2 cl, 8 dwg

Device for reconstruction of lost forms of the wagon body // 2641383
FIELD: transportation.SUBSTANCE: device for recovering lost forms of the wagon body contains a u-shaped girder frame (1), with the possibility of hanging to the shop bridge faucet and placing front and back vertical beams (3) on both sides of the body element being straightened, and a hydraulic pressure cylinder (5). The rear vertical beam has transverse paws. In the guide cavity of the front vertical beam, the body of the hydraulic cylinder is mounted, mounted in a closed chain transmission (7), equipped with an asterisk, the shaft of which is connected to the handle for selecting the contact position of the plunger of the hydraulic cylinder with the body element being straightened.EFFECT: invention improves manufacturability and improves the quality of repairs.3 dwg

ethod of producing steel parts with high-productivity coating hardened in press // 2641279
FIELD: metallurgy.SUBSTANCE: invention relates to a pre-coated sheet or a workpiece comprising a steel substrate for heat treatment, which is overlapped by a preliminary coating over at least one section of at least one of its main surfaces. The pre-coating comprises at least one layer of aluminium or an aluminium alloy, covered over at least one section of above-mentioned pre-coating by a polymerized layer having thickness of 2-30 mcm. The polymerized layer consists of a polymer which contains no silicon and which nitrogen content does not exceed 1 wt % in terms of the weight of the above-mentioned layer. The above-mentioned polymerized layer contains carbon-containing pigments in an amount of 3-30 wt % in terms of weight of the said layer.EFFECT: enhancement of coating reliability.22 cl, 9 dwg, 9 tbl, 4 ex

ethod to form forgings of elongated shape with two symmetrical longitudinal ribs and device for implementation of method // 2641217
FIELD: metallurgy.SUBSTANCE: die contains upper and lower halves with preliminary and final grooves. Each groove has cavities for forming ribs and an interrib portion of the forging. In preliminary groove, the height of one cavity for forming ribs is 1.2-1.5 of one cavity height for forming ribs of the final groove. The height of the second cavity for forming ribs is equal to height of the second cavity for forming ribs of the final groove. The height of the cavity for forming the interrib space of the preliminary groove is 0.8-1.0 of the cavity height for forming the interrib space of the final groove. Between the inclination of cavities for forming the ribs and the bases of cavity for forming the interrib section of the preliminary groove, there is a slope with an angle from 5 to 45°. The length of the slope is 0.2-0.5 of the cavity length for forming the interrib area. The blank is formed in preliminary groove by at least two working strokes of the die. After the first run, the blank is turned by 180 ° along its longitudinal axis.EFFECT: reduction of forming force.2 cl, 5 dwg, 1 ex

ethod for manufacturing sheets from ot4 titanium alloy // 2641214
FIELD: metallurgy.SUBSTANCE: method for manufacturing sheets from OT4 titanium alloy includes deformation of ingot into a slab, mechanical treatment of the slab, multi-stage rolling of slab on the rolling stock, cutting of the rolled stock into sheet blanks, their assembly into a pack, rolling of the sheet blanks into sheets in the composition of the stack and the finishing operations of sheets after the pack rolling. The ingot is deformed into slab in two stages. At the first stage in βregion the temperature range above the temperature of polymorphic transformation (TPT) by 150-250°C with total deformation degree 30-80%, and at the second stage (α+β)-region within the temperature range below the TPT by 30-50°C with total deformation degree of 20-50%, multi-stage slab rolling is carried out sequentially in four stages. At the first stage in βregion within the temperature range above the TPT by 90-160°C with total deformation degree of 30-90%, at the second stage (α+β) region within the temperature range below the TPT by 30-70°C with total deformation degree of 15-40%, at the third stage in βregion within the temperature range above the TPT by 90-160°C with total deformation degree of 15-25% and at the fourth stage (α+β) region within the temperature range below the TPT by 30-70°C with total deformation degree of 40-70%, the stock is cut into sheet blanks and they are assembled into a pack, sheet blank is laid to provide perpendicularity of the previous rolling of sheet blank to the direction of subsequent rolling of sheet blank, and the pack is rolled for ready size within the range of temperatures below TPT by 30-70°C with total deformation degree of 40-70%.EFFECT: produced sheets have high plasticity values, low anisotropy of mechanical properties.5 dwg, 3 tbl
ethod for forming fine-grained high-strength and corrosion-resistant structure of aluminium alloy // 2641212
FIELD: metallurgy.SUBSTANCE: invention relates to the technology of intensive deformation treatment of AMg 6 aluminium alloy and can be used in production of deformed semi-finished products and light-weight products therefrom for using in aerospace, shipbuilding and automotive industries. Method for producing the blank from a high-strength and corrosion resistant AMg6 aluminium alloy includes casting the alloy and thermomechanical treatment of the casting. Thermomechanical treatment of the casting is carried out by multi-equal channel angular pressing (ECAP) at deformation rate of 0.4 mm/s in two stages with production of a blank, at the first stage one ECAP cycle is carried out at the temperature of 145-150°C. At the second stage, the second EACP cycle and subsequent ECAP are carried out at the temperature of 165-240°C with stepped temperature increase in each cycle till total true degree of deformation e=2.8 and average grain size 0.3-0.5 mcm is reached. The second stage is carried out with holding the blanks for 5-10 minutes before each cycle directly in the working channel of the ECAP unit at the temperature of each ECAP cycle.EFFECT: upgraded strength and corrosion resistance.3 cl, 1 dwg, 1 tbl, 2 ex
ethod of forming high-strength and corrosion-resistant structure of aluminium-magnesium alloy // 2641211
FIELD: metallurgy.SUBSTANCE: invention relates to technology of thermomechanical treatment of aluminium alloy with magnesium content not more than 6 wt % for producing deformed semi-finished products and light-weight products therefrom for using in aerospace, shipbuilding and automobile industries. Method for producing billets from high-strength and corrosion-resistant aluminium-magnesium alloy with magnesium content not more than 6 wt % includes casting of alloy and thermomechanical treatment of castings with production of billets. Thermomechanical treatment of castings is carried out by rolling at 0.4 mm/s rate at room temperature to achieve total true degree of deformation e=1.3 in the produced billets, and then by annealing at 300-325°C for 30 minutes to form billets of homogeneous structure with average grain size 0.4-0.5 mcm.EFFECT: enhanced strength and corrosion resistance.3 cl, 2 ex

ethod of application of wear-resistant coating on bandage shelter of shoulder of turbomashes from nickel alloys // 2641210
FIELD: machine engineering.SUBSTANCE: shroud of the turbine blade is made. Put on the prepared to surfacing contact surface banding shelf wear-resistant coating and remove any excess coating referred to obtain the desired size bandage shelves. The bandage shelf is made with an allowance compensating for its subsequent shrinkage when a wear-resistant coating is applied, and after surfacing of the above coating, the blade is annealed in a vacuum10-3-10-4mm Hg. at a temperature not exceeding 1050°C. While surfacing wear-resistant coating on the contact surface banding shelves carry out in one pass without breaking the minimum arc current of 30-40 A. Allowance banding shelves exceeds its subsequent shrinkage is not more than 5-10%.EFFECT: invention makes it possible to increase the reliability and service life of the turbine blades.2 cl, 5 dwg, 2 ex
ethod for producing blank of ti49,3ni50,7 nanostructured alloy with shape memory effect // 2641207
FIELD: metallurgy.SUBSTANCE: method for producing a blank of Ti49, 3Ni50, 7 nanostructured alloy with shape memory effect includes uniform angular pressing with accumulated degree of deformation more than 4 in the temperature range 300-550°C, plastic deformation and annealing. The blank produced after ECAP is enclosed in steel shell, and plastic deformation is carried out by free upsetting to degree of not less than 30% in temperature range of 20-300°C, then the blank is removed from the shell, and annealing is carried out at temperature T = 200-400°C.EFFECT: enhanced mechanical properties and functional characteristics with the necessary cross-section of blanks.1 tbl, 2 ex

Rolling mill stand with three rolls configured for their replacement by moving in transverse direction relative to rolled stock line // 2641206
FIELD: metallurgy.SUBSTANCE: stand (100) contains a supporting structure, a cassette-holder (3) of rolls configured for movement along the rolling axis (X) from the working position inside the supporting structure (13) to the extended position outside the supporting structure (13) by transverse movement relative to the rolling axis (X), three mill rolls (2, 2', 2''), each of which has a corresponding support (6, 6', 6") mounted in the cassette-holder (3) of rolls with the corresponding axes of symmetry located at 120°angle relative to each other. The first mill rolls (2) of said three mill rolls (2, 2', 2'') has a corresponding axis of symmetry arranged horizontally, and a corresponding pivot axis arranged vertically. The cassette-holder (3) of rolls has a Y-shaped opening on both side walls (10), which base is located at the vertical axis of the holder support, which makes it possible to extend the cassette-holder of rolls in the direction, which coincides with the horizontal axis of the holder with the vertical axis, while maintaining the support attached to the supporting structure (13) of the rolling mill stand. During standard maintenance the cassette (3) is removed from the rolling mill structure in transverse direction with support of the roll holder with a vertical axis attached to the cassette, as well as the other roll supports.EFFECT: possibility for releasing the pipe during rolling in the event of emergency situation.13 cl, 13 dwg

ethod of manufacture of elastic metall sealing gaskets // 2641202
FIELD: machine engineering.SUBSTANCE: invention can be used in the manufacture of an elastic metal gasket with a cross-section Ω-shaped form for detachable connections of units of power plants. The annular preform is prepared by welding a butt-end of an austenitic dispersion hardening alloy 36NXTU with quenching at a temperature of 970±10°C for 20 minutes and cooling in water at a temperature of 10-25°C. Then, the profile of the gasket in the stamp with expansion punches is formed in two operations. At the first operation a preliminary moulding is produced. The second operation is a calibration. Then the obtained liner is subjected to a dispersion hardening at a temperature of 660±10°C for 4 hours in the device with its volumetric fixation and cooling in the air. Then the preform is predeformated in the axial direction with deformation in the elastoplastic zone for 12-18 hours. Sealing edge is subjected to mechanical processing with getting the height of pads, exceeding the size of lock of split connection on the amount of axial elastic deformation of the gasket.EFFECT: increase the elasticity of the obtained gasket and the accuracy of its landing diameter.1 dwg,1 ex

Hollow axis of wheel pair for freight wagons // 2641199
FIELD: transportation.SUBSTANCE: hollow axle of a wheel pair for freight wagons is complete with necks, pre-wheel seats, wheel seats and a middle part located between them. Necks and wheel seats are made with a cylindrical opening of different diameters. The middle part has an internal surface of a convex parabolic shape and a length variable of the wall thickness, smaller in the middle of the middle part. The outer surface of the middle part is also made in a convex parabolic shape.EFFECT: increase in the strength characteristics of the axis.2 dwg

Device for loading billets into press // 2641079
FIELD: metallurgy.SUBSTANCE: device for loading the billet of measured length cut from a bar comprises a billet clamping mechanism. Said mechanism comprises a drive and at least two prismatic jaws. The jaws are configured for moving and fixing in the extreme clamped and released positions. The device is provided with a drive mechanism for feeding the billet into the press working zone and a mechanism for turning the billet by 90° angle. Rotation is carried out around an axis, which is equidistant from the end of the billet and from its outer surface. The billet clamping mechanism can fix jaws in intermediate position with provision of free positioning of the billet therein with fixation against movement in vertical plane.EFFECT: extended functionality of the device.4 cl, 4 dwg
ethod of strengthening and forming screw reinforcing bar // 2640705
FIELD: construction.SUBSTANCE: method involves twisting a reinforcing bar around its longitudinal axis. The reduction rolling of a reinforcement workpiece round or square in the cross-section at a temperature below the recrystallization temperature in a square gauge with a deformation degree of 20-40% and its subsequent twisting to ensure the formation of a reinforcing bar with a screw profile on its surface with an inclination angle of 35-60° to the longitudinal bar axis are performed successively and continuously.EFFECT: increasing the strength of reinforcing bars.2 dwg

C-shaped rod structure implemented with possibility of providing compensation of deviation and related method // 2640696
FIELD: construction.SUBSTANCE: C-shaped rod structure, robotic system and associated method are provided to react to and compensate for loads applied to the C-shaped bar structure during activation of the tool. The C-shaped rod structure comprises a plurality of links and a plurality of pins connecting these links to form a configuration in the form of a dowelled truss. The configuration in the form of a dowelled truss is sensitive to the load transmitted in response to the activation of the tool, in such a way that each link is in compression or tension. The C-shaped rod structure also comprises a plurality of hydraulic cylinders connected to the links in such a way that each hydraulic cylinder extends in parallel to the corresponding link. The first hydraulic cylinder operates in a compression mode in response to a deformation associated with the activation of the tool. The second hydraulic cylinder operates in tension mode in response to the operation of the first hydraulic cylinder in the compression mode.EFFECT: increasing the strength of the rod structure joint.15 cl, 6 dwg
ethod of manufacture of cold drawn trade pipes of 273×10×8700-9500 mm size from titanium alloys pt-1m and pt-7m // 2640694
FIELD: metallurgy.SUBSTANCE: method of manufacture of cold drawn trade pipes of 273×10×8700-9500 mm size from titanium alloys PT-1M and PT-7M includes ingot casting in vacuum-arc furnaces, forging ingots in forgings, turning forgings into blanks with size of 500±5×1750±25 mm, drilling in the blanks a central hole with a diameter of 90±5 mm, schooping Al2O3, heating in reheat furnaces in mufflers up to temperature of 1140-1160°C, piercing the blanks of 500±5×90±5×1750±25 mm size in a cross-rolling mill on a mandrel with 300 mm diameter with an elongation ratio μ from 1.39 to 1.46 in shells with a size of 515×in.315×2400-2590 mm, rolling shells in a pilgrim mill in the calibre of 351 mm with an elongation ratio of μ=4.78, with charging shells to the deformation zone m=18-20 mm, to tube stock with a size of 338×28×10300-11200 mm, cutting the tube stock into two pipes of equal length, boring and machining of hot drawn tube stock to tubular blanks with a size of 325×15×5150-5600 mm, rolling them in cold reducing rolling mills end route 325×15×5150-5600-273×10×8700-9500 mm with a relative reduction along the wall of δm=33.3% and an elongation ratio of μm=1.77.EFFECT: mastering the production of a new type of pipes made of titanium alloys.1 tbl

ethod of producing of hollow blade for gas turbine engine // 2640692
FIELD: engine devices and pumps.SUBSTANCE: three-layer blanks of skins and/or aggregate are used, wherein the outer layers of blanks are made of titanium alloy with different grain sizes. Applying an anti-adhesive coating to the surface of the sections of blanks of skins and/or aggregate blank that are not subjected to bonding during diffusion welding, assembling the skin and aggregate blank in a package, sealing the package along the edges, welding the gas injection tube to the package, evacuating package cavity when it is heated, heating the package, diffusion welding of blanks, rupture of adhesive bonds between blanks, superplastic forming before obtaining a hollow blade feather.EFFECT: increasing the quality of aggregate connection with skins.3 cl, 2 dwg, 1 ex

Device for manufacture of twisted products // 2640513
FIELD: technological processes.SUBSTANCE: device contains a punch for bending the middle part of the wire and a wire feeding mechanism. The punch and the wire feeding mechanism are coaxially rotatable with respect to each other. The lower part of the punch is cylindrical and is equipped with a screw mechanism for coiling the wire and a device for gripping the middle part of the wire. The wire feed mechanism is made in the form of a matrix with a reciprocal cylindrical recess for the lower working part of the punch. The matrix of the wire feeding mechanism is provided with a transverse through hole, inclined from the bottom of the cylindrical recess of the upper point of the wire coiling mechanism therein. In this case, the device for gripping the middle part of the wire is made in the form of a longitudinal cut along the axis of the screw mechanism.EFFECT: simplified design and higher speed of manufacturing of twisted spirals.2 cl, 13 dwg
Conveying machine for rolling ingots, application of such conveying machine and method for conveying rolling ingots // 2640508
FIELD: transportation.SUBSTANCE: device comprises at least one movable carriage (1) which comprises a tilting frame (10) and a guide frame (20). The tilting frame (10) contains at least one mobile transport trolley (11) made with the possibility to move longitudinally with the section (12) of the rail designed for the reception of bearing (40) for the ingot and which can be located colinearly relative to the furnace rail for rail expansion, and the guide frame (20) has at least one trolley (21) for a hook which can move in parallel to the transport trolley (11), and contains at least one tilting hook (22) to engage with the bearing (40) for the ingot. The invention also relates to the application of such conveying machine and to the method for conveying rolling ingots.EFFECT: improved economic efficiency and simplified maintenance of equipment.13 cl, 14 dwg

Bending press, method of press bending, device for manufacturing steel pipes and method for manufacturing steel pipes // 2640486
FIELD: machine engineering.SUBSTANCE: press bending device comprises a device for measuring the gap between the edges of an open tube, in which the punch pressing force is set after measuring the gap between edges of the open tube. The device for measuring the gap between the edges of the open tube has a light projector and a light receiver mounted on the punch, as well as a reflector. The device for measuring the gap between the edges of the open tube measures the gap between the edge of the formed open tube and a punch bearing element, at that the control of the punch pressing force is carried out depending on the gap measured value.EFFECT: possibility to perform accurate control of the gap value between the unattached edges of the open tube.10 cl, 6 dwg

ethod and device for manufacturing metal strip by continuous casting method combined with rolling // 2640484
FIELD: metallurgy.SUBSTANCE: at scheduled or non-scheduled interruption of production in the finishing rolling mill (3) the a-d stages are carried out: a) cutting the strip (1) by a separation device (5) at area (4) between the filling machine (2) and the mill (3), b) transporting a strip section after cutting in the transportation direction (F), into strip accumulator (6) with the help of setting device (7) located after device (5) c) by the device (5) the strip (1) is cut again and chopped after the section transported to the accumulator (6) in direction (F), d) by the device (5) the strip section accumulated in accumulator (6) is chopped in pieces, for this the setting device (7) performs reverse transportation of strip section (1) located in the accumulator (1) against the direction (F) to the separating device (5).EFFECT: fast, reliable and cost-effective, at least partially, automatic initialization of the plant in the operating state.11 cl, 2 dwg

Products, systems and methods of forging alloys // 2640112
FIELD: chemistry.SUBSTANCE: invention relates to gaskets that are placed between a stamp and a workpiece. The gasket contains three layers. The first layer comprises ceramic fibres and has the first heat resistance and the first friction coefficient. The second layer contains fibreglass and has the second heat resistance and the second friction coefficient. The third layer also contains fibreglass and has the third heat resistance and the third friction coefficient. The first heat resistance is greater than the second and the third heat resistance. The first friction coefficient exceeds the second and the third friction coefficients. The second and the third layers are bonded together to form a sleeve, into which the first layer is placed.EFFECT: reduction of friction between a workpiece and a stamp.10 cl, 12 dwg
ethod of thermomechanical treatment of sheets of two-phase titanium alloys to produce low values of thermal coefficient of linear expansion (tclp) in plane of sheet // 2639744
FIELD: metallurgy.SUBSTANCE: method for thermomechanical treatment of sheet semi-finished products made of two-phase titanium alloy with molybdenum equivalent from 3.3 to 22% includes hot rolling of semi-finished sheet products and cold longitudinal-transverse rolling. Hot rolling is carried out at temperature from 500°C to Tpt - 20°C with total reduction of not less than 10%, then hardening is carried out from temperature in the range from 600°C to Tpt, and subsequent cold longitudinal-transverse rolling of semi-finished sheet product is carried out at temperature not higher than 300°C with total reduction from 1 to 30%, where Tpt is temperature of complete polymorphic transformation of used alloy melt. The TCLP value is not more than 5⋅106 K-1 in sheet plane in the temperature range from -140 to +80°C, while strength is greater than 900 MPa and ductility more than 5%.EFFECT: producing low values of thermal coefficient of linear expansion in the sheet plane.3 tbl, 1 ex
ethod to produce calcium-containing wire for treating metal melts // 2639742
FIELD: metallurgy.SUBSTANCE: method includes formation of a metal shell of U-shaped profile, filling of U-shaped profile of metal shell with filler and squeezing of movable metal shell with filler. Pure calcium melt is used as filler flowing out of crucible at temperature of 900-1000°C, which fills the metal shell, after the filling the longitudinal edges of U-shaped profile of tubular metal shell are squeezed overlapped with subsequent cooling, at that the filling with melt, formation of squeezing and cooling of tubular shell is carried out under inert atmosphere of argon.EFFECT: high content of active calcium in solid monolithic state without oxygen and increased filling factor, reduced consumption of wire required for treatment of specified amount of metal.2 cl

Working body for expanding hollow and tubular billets // 2639274
FIELD: metallurgy.SUBSTANCE: working body is made in the form of an ice bar whose end part facing a punch contains a water-insoluble particulate material.EFFECT: expansion of technological possibilities of operations for expanding hollow and tubular billets with minimal cost.2 cl, 1 dwg

ethod of combined continuous casting, rolling and pressing of metal billet and device for its implementation // 2639203
FIELD: metallurgy.SUBSTANCE: device comprises a rotary crystalliser 3 forming a continuous cast billet 4, a roll 7 with a groove and a roll 8 with a projection forming a working caliber, a die 9 at the caliber outlet, a device 5 for controlling the temperature of the cast billet, guiding elements 6. The upper part of the roller 8 projection 14 has a t-shape, the projections 12 are made on the roll 7 cylindrical surface. There are slots 13 on the roll 8 cylindrical surface forming a labyrinth mating of rolls with projections 12. The die and die holder have mating slots and projections providing fixation of die position. The die is placed in the working caliber with gaps relative to roll surfaces. The billet from mould 3 with a present temperature is rolled in the working caliber and then pressed through a calibrated opening in the die. When the cast billet is fed into working caliber, the cast billet metal is pressed into gaps between the working surfaces of the rolls and the die to form a cladding layer of metal on the roll surface.EFFECT: reduced roll wear and losses of metal by self-sealing of the groove-projection interface.23 cl, 6 dwg, 3 tbl, 1 ex

ethod for drawing hollow cylindrical articles and drawing machine for its implementation // 2639202
FIELD: metallurgy.SUBSTANCE: thin-sheet blank is fixed on the side of profile cylindrical mandrel by the heel of the pressing device. Pressing of thin-sheet blank on the profiled cylindrical mandrel is carried out through several technological drawing transitions, on each of which the thin-sheet blank is rolled around the profiled mandrel by means of axial pulsating reciprocating motion of the pressing head by a given depth, flattening of the stretched blank corrugations formed in the base circular section base by the end of the pressing head performing axial pulsating reciprocating motions in the direction towards the periphery of blank base and back. At that, the pressing treatment of the thin-sheet blank at each technological transition is carried out on a flat matrix. The depth of drawing is set by axial displacement of cylindrical mandrel through the flat matrix hole and simultaneous displacement of heel of the pressing device. In this case, the rolling of the thin-sheet blank is carried out by the pressing head around the profiled mandrel with rotation of the thin-sheet blank together with the profile mandrel and the flat matrix, and the corrugations are flattened on the matrix the plane. The method is implemented with the help of the drawing machine.EFFECT: expanded technological possibilities for drawing hollow cylindrical articles from thin-sheet blanks on machines of lathe group for small-scale and single production.3 cl, 1 dwg

odular rolling mill // 2639198
FIELD: machine engineering.SUBSTANCE: modular rolling mill has a rolling line of the mill and comprises first reducers arranged along a first line parallel to a rolling line. Each first reducer is driven separately by a motor and has a pair of first shafts that are mechanically interconnected. Second reducers are arranged along a second line between the first line and said rolling line and parallel to both lines. Each second reducer has a pair of mechanically interconnected second shafts. Roll stands are arranged successively along the rolling line. Each rolling stand is driven by an input shaft and there is a pair of working rolls placed on mutually joined shafts of the rolls. The first connections connect the first shafts of each first reducer with the second shafts of two successive reducers, and the second connections which with the possibility of disengagement connect the second shafts of the second reducers to the input shafts of the second reducers with the input shafts of two consecutive rolling stands. At least some of the first connecting means comprise couplings which can be selectively disengaged to complete removal of the selected rolling stands from the rolling line.EFFECT: mill makes it possible to use maximum engine power regardless of the number of stands operating.11 cl, 7 dwg
ethod of producing seamless cold-deformed coupling pipes of 88,9 × 6,45 mm size from corrosion-resistant alloy of "хн30мдб-ш" grade // 2639183
FIELD: metallurgy.SUBSTANCE: method of producing seamless cold-shaped pipes of 88.9×6.45 mm from corrosion-resistant alloy "ХН30МДБ-Ш" includes casting of centrifugal steel hollow billet of 440×100×2300 50 mm size, which are bored and faced to hollow machined billets of 430×85×2300±50 mm size, heated to the temperature of 1180-1200°C, rolled on pilgrim mill to hot-rolled pipes of 260×30×9000-9400 mm size which cut into two tubes-billets of equal length, bored and faced to the disposal pipes of 245×16×4500-4700 mm sizes and rolled on cold-pilgering mill on routes: 245×16×4500-4700 - 219×13×5900-6200 - 168×10×9800-10200 - 140×8×14450-15050 mm, pipes of 140×8×14450-15050 mm sizes are cut into three equal parts and rolled on cold-pilgering mill to the salable pipes of 88.9×6.45×9350-9750 mm size with relative reduction of cross-sectional area on wall of δ1=18.8%, δ2=23.1%, δ3=20.0%, δ4=25.8% and reduction ratios μ1=1.37, μ2=1.70, μ3=1.50, μ4=1.99.EFFECT: reduction of metal consumption coefficient.2 cl, 1 tbl
Wire feeder // 2639180
FIELD: technological processes.SUBSTANCE: wire feeder comprises of a frame with a feeding mechanism in the form of three pairs of similar drive rollers coaxially attached to the gear wheels. The first drive rollers are mounted on the plane of the frame with their rotational axes arranged in a line parallel to the fed wire, and each of the second drive rollers is spring-loaded relative to the first drive roller and is rotatable at the end of the rocker arm. The device is provided with additional gear wheels equipped with similar gears of the first drive rollers which are engaged with them and located on the plane of the frame and rotatable between the first drive rollers and a wire tension sensor in the form of a load cell, located after the last pair of the drive rollers in the wire direction and containing pair support rollers and a measuring roller located between them and connected with the load cell.EFFECT: increase in the operation efficiency and reliability.3 cl, 3 dwg

ethod and device for forming heat-treated material // 2639167
FIELD: technological processes.SUBSTANCE: method for forming heat-treated material includes placing the heat-treated material between the first and second current collectors. Each of the first and second current collectors includes tool surface, which takes the form, in accordance with the required form of heat-treated material. The method also includes applying a low intensity magnetic field to the first and second current collectors for heating the first and second current collectors. In addition, the method involves compacting the heat-treated material between the first and the second current collectors for forming heat-treated material, giving it the desired shape. The method further includes supplying a high intensity magnetic field to the heat-treated material before compressing the heat-treated material between the first and second current collectors.EFFECT: improvement of the method, cost reduction.20 cl, 7 dwg

Spring transmission device and method of spring transmission // 2638871
FIELD: machine engineering.SUBSTANCE: spring transmission device using the spring transmission method from a machine for winding the spring to a device for transporting the spring comprises a turning mechanism for turning the spring during movement from a first location to a second location, from a first orientation that the spring has at the first location, to a second orientation perpendicular to the first one, which the spring has at the second location. A rotation mechanism is connected to a rotatable mechanism, which together rotate the spring around its longitudinal axis. The design features of said device and the machine for spring frame manufacturing are presented.EFFECT: provided transportation of the spring with given vertical orientation, reducted space for transmission of springs from the winding machine to the device for transportation of springs.16 cl, 8 dwg

ethod of cooling for hot-compression moulding and hot-press moulding device // 2638867
FIELD: metallurgy.SUBSTANCE: cooling of thin steel sheet is carried out by supplying the coolant to an ejection opening communicating from the supply channel inside lower mould. At that preliminary cooling is carried out, upon which the value of ejection per unit of time of the coolant from the ejection opening is suppressed. Thereafter, the main cooling is carried out by increasing the value of ejection per unit of time.EFFECT: uniformity of thin steel sheet cooling, and reduction of mould deformation.12 cl, 13 dwg

ethod for air extraction with severe plastic deformation and device for its implementation // 2638720
FIELD: technological processes.SUBSTANCE: hollow workpiece is pushed through two or more matrices arranged one above the other coaxially with the punch, with a successive reduction in the wall thickness. Multiple severe plastic deformation is provided with a periodically perimeter-changing coefficient and obtainment of a wall varying in the thickness perimeter with moulding of a hollow workpiece on the outer surface along the generatrix of projections and depressions. The subsequent retraction of the workpiece through the second matrix is also carried out with a perimeter-variable clearance between the punch and matrix with a wall thinning only at the sections of the workpiece having projections, and at the final stage the wall is deformed in the matrix with a uniform clearance between the instrument equal to the wall thickness of the finished shell. Matrices with a contour of the work hole made with a periodically changing profile are used, and the working contour of the last matrix forms a clearing with the punch uniform in perimeter, equal to the wall thickness of the finished shell.EFFECT: coefficient of thinning is reduced and a fine-grained structure is provided.2 cl, 4 dwg

Panel bending machine with slewing boom // 2638655
FIELD: textile, paper.SUBSTANCE: panel bending machine includes the lower support, the workpiece holder and the C-shaped boom holder. The boom holder supports the first and the second bending booms on its end devices. The actuator for the boom holder is arranged to rotate the second boom into two different operating positions. To move from the first operating position to the second operating position, the second beam is rotatable about the axis, passing through the free end.EFFECT: curved profiles range is expanded.15 cl, 15 dwg

ethod for manufacturing thin-walled shells of complex form // 2638605
FIELD: metallurgy.SUBSTANCE: invention can be used to form integral sheet thin-walled shells of axially symmetric shape from sheet blanks having constant thickness along the generatrix which is described by sections of second-order curves. The rotational extraction is carried out per one transition for several successive straight and reverse passes without taking into account temperature deformations.EFFECT: prevention of temperature deformations against heating of process mandrel.1 dwg

Vehicle bumper // 2638589
FIELD: transportation.SUBSTANCE: beam is formed from a continuous material sheet in the form of a closed tubular body. The body has an upper wall and a lower wall, connected by an inner wall and an outer wall. The support passes between the inner wall and the outer wall, and a reinforcing element overlaps at least part of the outer wall between the support and the lower wall to obtain a two-wall structure.EFFECT: simplification of manufacturing and cost reduction.14 cl, 11 dwg

Supporting node of casting roller // 2638486
FIELD: machine engineering.SUBSTANCE: supporting node contains pillow with a fluid friction bearing installed in it, back cover with seal, front cover with thrust bearing, lubrication supply site and flexible ducts connected to the hydraulic system, the node drain the grease from the bearing brasses, executed in the form of oil pockets, located on both sides of the pillow and fastened at the bottom of the pillow holes to drain the grease, oil and drains connected to the stationary risers of the drain line of the hydraulic system. In the body of the pillows above the level of the grease drain holes completed holes connecting the upper parts of the oil pockets with each other, while the upper part of the pocket, adjacent to the front cover with the thrust bearing is flexible duct with an upper part of the standpipe drain lines stationary hydraulics, fitted with brass hole with air filter, connecting it with the surrounding environment. Stationary riser of the drain line of the hydraulic system connected bore with a brass and air filter through U-shaped knee and upper part of oil pockets on the side of the back cover with seal pipeline is connected with the source of the gas.EFFECT: reduce the consumption of liquid lubricant and increase the load capacity of the bearing.3 cl, 1 dwg

ethod for manufacturing welded straight-seam pipes of titanium alloys // 2638476
FIELD: metallurgy.SUBSTANCE: method includes forming of a strip into a pipe blank in the form of oval cylinder, welding and calibration. Forming is performed after conventional division of strips by width into two equal parts and additional separation of each half of width into extreme sections of approximately ≤2.5 mm size and three successively arranged and approximately equal inner portions: peripheral, middle and central which are successively processed by the same forming radius Rf equal to (0.8-0.95) from the radius of the tube (Rt), in three successive stages. At the first step, the peripheral portions are bent to the fold radius Rf with simultaneous bending of edges with radius equal to (0.65-0.75) Rt, and the central and middle sections are bent with radius of back bending with a value which does not take the strip out of elastic deformations area. At the second stage gradual folding of the central sections is carried out up to the bend radius Rf, the middle sections are treated with radius which does not take the strip out of elastic deformations area. At the third stage, the middle sections are treated up to radius Rf under condition of gradual forced stretching of central and peripheral sections to radius providing an ellipse form with a larger horizontal axis in the range of 1.02÷1.1 with respect to the vertical axis at the forming mill outlet.EFFECT: increased accuracy of geometric sizes of pipes.3 dwg
ethod of reverse screw pressing (rsp) and comprehensive screw pressing (csp) // 2638473
FIELD: machine engineering.SUBSTANCE: method includes production of a blank and its subsequent reverse screw pressing. Prior to pressing, the blank is subjected to twisting by definite angle due to edges on its surface, then the twisted blank is placed in a die supporting blank faces onto its inner contour and reverse screw pressing is performed by a punch along the axis of twisting to preset size of the blank. At that, twisting and reverse screw pressing are carried out multiple times until specified size of the crystal structure of the blank is reached, and the number of twisting revolutions and degree of single deformation at reverse screw pressing are set depending on metal plastic properties.EFFECT: production of article with improved mechanical properties due to increased rate of blank deformation.3 cl, 1 dwg

ethod of screw broaching of blank // 2638468
FIELD: machine engineering.SUBSTANCE: at the moment of sleeve end releases from the deformation zone, the speed of rollers rotation is increased up to the rotation speed corresponding to the steady-state broaching process, and after the deformation of blank length regulated by mathematical relation, the rolls rotation speed is reduced by 20-70%.EFFECT: increased accuracy of rear and front ends of sleeves, reduction of pipes defects on outer and inner surfaces, increased resistance of rolling tool.4 dwg

ethod and device for bending thin-sheet metal // 2638465
FIELD: metallurgy.SUBSTANCE: bending is carried out by one rotary die and blade-type plate punch performing the functions of abutment. The rotating punch is always located on the bisector of the bent blank inner angle and the second half-die and the free side of the sheet remain stationary. The bending mechanism for linear bending of sheet materials with a rotary pressure abutment comprises a composite die of two half-dies, one of which is fixed on the base, and the second one is simultaneously and consistently turned with the abutment by means of hinged fastening on the base. The device further comprises a dividing mechanism configured to provide rotation of abutment by the angle equal to half the rotation angle of the rotating half-die.EFFECT: expanded technological capabilities.2 cl, 6 dwg
ethod of cold drawn trade pipes manufacture of 219×9×11700-12800 mm size from titanium alloys pt-1m and pt-7m // 2638266
FIELD: metallurgy.SUBSTANCE: method of producing cold-rolled commercial tubes of 219×9×11700-12800 mm size from titanium alloys PT-1M and PT-7M includes ingot casting in vacuum-arc furnaces, forging ingots in forgings, turning forgings into blanks with size of 500±5×1750±25 mm, drilling a central hole in the blanks with a diameter of 90±5 mm, tempering Al2O3, heating in continuous furnaces in muffle to temperature of 1140-1160°C, piercing the billets of 500±5×90±5×1750±25 mm size in cross-helical rolling mill on a mandrel with 300 mm diameter with stretching ratio μ from 1.39 to 1.46 in cage size 515×inner.315×2400-2590 mm, rolling cages in pilger mill in gage of 351 mm with elongation μ=4.78 and feeding to deformation zone m=18-20 mm in conversion tubes 338×28×10300-11200 mm, cutting technological wastes, dressing conversion tubes, cutting the conversion tube into two tubes of equal length, boring and turning the hot-rolled conversion pipes into billets 325×15×5150-5600 mm, rolling thereof on rolling mills by routes 325×15×5150-5600 - 273×12×7300-7950 - 219×9×11700-12800 mm with relative reduction in wall δm=20.0% δ1m=25.0% and stretch ratios μm=1.49 and μ1m=1.66.EFFECT: production of tubes of given dimensions.1 tbl
ethod of production of seamless machined pipes with size of 610×21-27 mm from steel of 08cr18n10t-s grade // 2638265
FIELD: metallurgy.SUBSTANCE: method for producing seamless machined pipes of 610×21-27 mm size from steel of 08Cr18N10T-S grade includes casting of hollow ingots by electroslag remelting with size of 740×inner560×3250±50 mm, boring and turning in ingots-blanks with size of 720×inner580×3250±50 mm heating of ingots-blanks in continuous furnaces to temperature of 1260-1270°C, supplying thereof to the ingot trolley, purging with compressed air or inert gas, casting of ingots-blanks inside from two ends with mixture of graphite with table salt in ratio of 50/50 and 2000-2500 g, rolling thereof in pilger mill to conversion hot-rolled tubes of 630×42×4300-4500 mm with diameter reduction Δ=12.5%, cutting of process wastes by hot cutting saw, straightening on six-roll straightening machine in 2-3 passes to curvature of not more than5.0 mm per length of conversion tube, austenitization, boring and turning of conversion tubes with 630×42×4300-4500 mm into commercial sizes 610×21-27×4300-4500 mm.EFFECT: reduction of metal consumption coefficient.3 cl, 1 tbl
ethod of production of seamless machined pipes with size of 610×15-20 mm from steel to 08cr18n10t-s grade // 2638264
FIELD: metallurgy.SUBSTANCE: method for producing seamless machined pipes of 610×15-20 mm size from steel of 08Cr18N10T-S grade includes casting of hollow ingots by electroslag remelting with size of 740×inner570×3200±50 mm, boring and turning in ingots-blanks with size of 720×inner590×3200±50 mm heating of ingots-blanks in continuous furnaces to temperature of 1260-1270°C, supplying thereof to the ingot trolley, purging with compressed air or inert gas, casting of ingots-blanks inside from two ends with mixture of graphite with table salt in ratio of 50/50 and 2000-2500 g, rolling thereof in pilger mill to conversion hot-rolled tubes of 630×36×4500-4800 mm with diameter reduction Δ=12.5%, cutting of process wastes by hot cutting saw, straightening on six-roll straightening machine in 2-3 passes to curvature of not more than 5.0 mm per length of conversion tube, austenitization, boring and turning of conversion tubes with 630×36×4500-4800 mm into commercial sizes 610×15-20×4500-4800 mm.EFFECT: reduction of metal consumption coefficient.3 cl, 1 tbl
ethod of production of seamless machined pipes with size of 610×28-32 mm from steel of 08cr18n10t-s grade // 2638263
FIELD: metallurgy.SUBSTANCE: method for producing seamless machined pipes of 610×28-32 mm size from steel of 08Cr18N10T-S grade includes casting of hollow ingots by electroslag remelting with size of 740×inner550×3300±50 mm, boring and turning in ingots-blanks with size of 720×inner570×3300±50 mm heating of ingots-blanks in continuous furnaces to temperature of 1260-1270°C, supplying thereof to the ingot trolley, purging with compressed air or inert gas, casting of ingots-blanks inside from two ends with mixture of graphite with table salt in ratio of 50/50 and 2000-2500 g, rolling thereof in pilger mill to conversion hot-rolled tubes of 630×48×4100-4300 mm with diameter reduction Δ=12.5%, cutting of process wastes by hot cutting saw, straightening on six-roll straightening machine in 2-3 passes to curvature of not more than5.0 mm per length of conversion tube, austenitization, boring and turning of conversion tubes with 630×48×4100-4300 mm into commercial sizes 610×28-32×4100-4300 mm.EFFECT: reduction of metal consumption coefficient.3 cl, 1 tbl

Tube blank for production of flexible parts // 2638262
FIELD: metallurgy.SUBSTANCE: tube blank comprises a deformable part rigidly connected by means of a coupling with allowance for machining and technological allowance for installing the blank on the machine and directing its movement when bending. At that, the coupling has a body with grooves and slide blocks fixed in the grooves by means of locking rings, between which the compression springs are installed, which provide fixation of deformable part of the blank through slide blocks during its movement when bending.EFFECT: expanded technological capabilities.3 dwg
 
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