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

B21            echanical metal-working without essentially removing material; punching metal(50913)
ethod of blades forgings manufacturing from titanium alloys // 2614294
FIELD: metallurgy.SUBSTANCE: forgings manufacturing method from titanium alloys includes extrusion of billet under isothermal conditions at the same temperature of heating the billet and die and subsequent isothermal forging of the extruded billet. The extrusion and isothermal forging is performed at the heating temperature of the die and billet 800-830 °C±40 °C at average strain rate not more than 0.3 mm/s.EFFECT: reduce of alloy deformation resistance and increase of dimensional stability of dies, manufacturing of blade forgings with a fine-grained structure.1 dwg,1 ex

ethod of producing sleeves // 2614231
FIELD: metallurgy.SUBSTANCE: method comprises plugless reduction of the ingot of fixed length in three-roll breaking-down mill caliber formed by rolls deployed at the feed angle, and piercing of the reduced ingot in the piercing mill. After deformation of 0.75-0.85 length of the ingot, roll speed of breaking-down mill is reduced to a value corresponding to 15-50% of the roll speed atestablished process of ingot reduction. When reducing the ingot with length of more than one and a half of breaking-down mill roll body lengths, feed angle of breaking-down mill rolls is regulated by mathematical relationship. Reduction of the ingot with length of less than one and a half of breaking-down mill roll body lengths is carried out with a gradual regulated increase in the roll speed after its gripping.EFFECT: improved quality of the end surface of the sleeves, reduced defects from the ring delamination on exterior and interior surfaces of tubes, increased durability of the rolling tool.3 cl, 3 dwg, 5 tbl

ethod and upsetting device for manufacturing of ledged parts, such as shafts and rods // 2614224
FIELD: metallurgy.SUBSTANCE: invention refers to pressure processing of metals and can be applied in manufacturing of parts in the form of a rod with flanges. Heated ingot is deformed in a moulding machine in stages. At the first stage of deformation, a rod workpiece is obtained with a diameter equal to finished part diameter. At least one next stage involves upsetting of at least one flange on the rod workpiece, with the final flange diameter exceeding the rod workpiece diameter.EFFECT: possible manufacturing of parts with improved parameters out of ingots of different sizes.11 cl, 6 dwg

ethod for producing of deformed semifinished products from intermetallides titanium alloys // 2613829
FIELD: metallurgy.SUBSTANCE: method for producing deformed semifinished products from gamma alloy Ti-43Al-3Nb-2W-0.5Si includes heating and a two-stage compression of cast billet in the metal clad. The cast billet is coated by thermal layer from fiberglass and/or kaolin fiber with softening temperature ≥1150°C and placed in a shell from the titanium alloy with a thickness δ, defined by the expression δ= (0.02-0.05)×∅, where ∅ - billet diameter in mm. Then the billet is heated and subjected to premoulding at temperatures 1250-1380°C with a deformation degree of 25-40%, the deformation rate of 50-60 mm/s, and then the final compression with deformation degree 96-98%, followed by cooling of compressed semifinished products upto the room temperature.EFFECT: obtaining the billet uniform structure, which provides high values of stress limit and elongation at the room temperature, heat resistance at temperatures up to 800°C.4 cl, 1 dwg, 2 tbl, 6 ex

High-strength thin-walled steel pipes welded by electric resistance welding with high impact strength and method of their production // 2613824
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, specifically to thick-walled steel pipes, which can be used for drilling or oil and natural gas transportation. High-strength thick-walled steel pipe, welded by electric resistance welding, contains, wt%: C 0.025–0.084, Si 0.10–0.30, Mn 0.70–1.80, P 0.001–0.018, S 0.0001–0.0029, Al 0.01–0.10, Nb 0.001–0.065, V 0.001–0.065, Ti 0.001–0.033, Ca 0.0001–0.0035, N 0.0050 or less, O 0.0030 or less, if necessary, at least, one element, selected from: B 0.0030 or less, Cu 0.001–0.350, Ni 0.001–0.350, Mo 0.001–0.350 and Cr 0.001–0.700, Fe and incidental impurities are rest. Pcm parameter, characterizing microstructure after pipe welded seam fast cooling and defined by expression Pcm=C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5·B, is equal to 0.20 or less. Microstructure includes 90% or more of quasi polygonal ferrite by area, having grain size of 10 mqm or less in steel pipe main part and in part, welded by electric resistance welding.EFFECT: pipe is characterized by high values of low-temperature impact strength and resistance to hydrogen cracking, as well as high reliability of pipe welded part.10 cl, 3 dwg, 5 tbl, 2 ex
ethod for producing seamless pipes of 325×8-14 mm size made of steel of "08х18н10т-ш" grade // 2613822
FIELD: metallurgy.SUBSTANCE: method involves hollow ESR ingots casting, their turning, reeling, hot and cold rolling at PRM 8-16" with Pilger mills and at CRM 450 mill, and heat treatment. Sequential processing of workpieces with dimensions and processing modes regulated at every stage of production is implemented.EFFECT: obtaining of seamless cold-rolled pipes of high quality and increased length, reduced consumable metal coefficient at redistribution of hollow ingot to ESR billet.2 cl, 1 tbl
ethod for producing seamless pipes of 377×8-13 mm size made of steel of "08х18н10т-ш" grade // 2613817
FIELD: metallurgy.SUBSTANCE: method involves casting of hollow ingots by electroslag remelting, boring and turning them into ingots-billets, heating in a reheating furnace, drawing of ingots-billets on a trolley, blowing with compressed air, lubricating ingots-billets inside, from two ends, by a mixture of graphite with table salt, rolling them at a Pilger mill on taper mandrels to re-rolled hot-rolled pipes, segmentation of technological waste, straightening in a six-roll straightening machine with rolling heating temperature, austenitizing, cutting to two pipes of equal length, machining to pipe billets and rolling of machined pipe billets at CRM mill into commercial pipes with following heat treatment.EFFECT: reduced expensive metal consumption, reduced roughness of outer and inner surfaces of pipes, improved productivity and increased lengths of pipes, reduced cost provided by regulation of processing modes at all stages of production.2 cl, 1 tbl
ethod of producing cold-deformed coupling pipes of 132,1×18×10600-10800 mm size from corrosion-resistant alloy of khn30mdb grade // 2613816
FIELD: metallurgy.SUBSTANCE: invention relates to pipe rolling production for manufacturing the coupling pipes of 132.1×18×10600-10800 mm size from corrosion-resistant alloy of KHN30MDB grade used for gas and gas condensate extraction inhydrogen sulfide-containing media. The casting of centrifugally cast billets of 470×115×2700±50 mm size is carried out from the alloy of KHN30MDB grade, their boring and turning, heating, rolling on the conical drawbars, cooling, cutting, boring and subsequent rolling on cold-pilgering mill with regulated modes of treatment and rolling.EFFECT: reduction of metal consumption.1 tbl
ethod for producing seamless pipes with diameter of 426×8-10 mm size for nuclear power facilities of steel of "08х18н10-ш" grade // 2613815
FIELD: metallurgy.SUBSTANCE: pipes production is carried out of stock pipe billets of 474×13×4700-5000 mm size obtained by mechanical processing: boring and turning of stock hot-rolled pipes of 490×32×9400-10000 mm size, rolled at PRM 8-16" with Pilger mills from hollow ESR ingot-billets of 650×ID.300×2100±50 mm.EFFECT: reduced metal consumption, reduced roughness of outer and inner surfaces and increased length of pipe.1 tbl
ethod of producing seamless hot-rolled machined pipes with 530×8-12 mm size from the steel grade "08x18h10ш" // 2613814
FIELD: metallurgy.SUBSTANCE: method comprises the casting of hollow ingots by electroslag remelting with 670×OD size.280×1550±50 mm, boring and turning them into hollow cakes with 650×OD size 300×1550±50 mm, heating of the cakes in a continuous furnace to a temperature of 1250-1260°C, drawing of the cakes from the furnace, greaseing of the cakes from both ends with a 50/50 mixture of graphite with sodium chloride with weight = 1000-1250 g, piercing-rolling of the cakes at helical rolling mill in sleeves with 680×OD size.525×2630-2800 mm, rolling of the sleeves on TPU 8-16" with Pilger mills into the tube stocks with 550×30×5900-6200 mm size, cutting of technological wastes, flattening in a six-roller flattening machine to the curvature of not more than 6.0 mm per total length of pipes, austenitization, mechanical treatment - boring and turning of hot-rolled tube stocks with 550×30×5900-6200 mm size into trade pipes with 530×8-12×5900-6200 mm size.EFFECT: expansion of the product mix by mastering the production of seamless tubes for nuclear power facilities.2 cl, 1 tbl
ethod of producing cold-deformed coupling pipes of 108×18 mm size from corrosion-resistant alloy of "хн30мдб" grade // 2613813
FIELD: metallurgy.SUBSTANCE: hollow centrifugal cast billets of 450×120×2700±50 mm size from alloy of "ХН30МДБ" grade are used as workpiece, their regulated boring, heating and rolling is carried out on Pilger mill to rerolled hot-rolled pipes, then their rolling on CRM mill to re-rolled cold-deformed pipes, rolling and cutting on CRM mill to commercial pipes is carried out.EFFECT: reduced metal consumption.1 tbl
ethod for producing seamless pipes with diameter 377 mm and wall thickness 14-18 mm of steel of "08х18н10т-ш" grade // 2613812
FIELD: metallurgy.SUBSTANCE: method involves casting of hollow ingots of regulated size by electroslag remelting, thier boring and turning into ingots-billets, heating, rolling at Pilger mill on taper mandrels to re-rolled hot-rolled pipes, segmentation of technological waste, straightening in a six-roll straightening machine with rolling heating temperature, austenitizing, cutting to two pipes of equal length, machining to pipe billets and rolling of machined pipe billets at CRM mill into commercial pipes along regulated routes with following heat treatment.EFFECT: reduced expensive metal consumption, reduced roughness of outer and inner pipe surfaces, increased productivity.2 cl, 1 tbl
ethod of manufacturing seamless pipes of size 377×8-18 mm for nuclear power facilities of steel of 08x18h10t-w grade // 2613811
FIELD: metallurgy.SUBSTANCE: seamless cold-rolled pipes, size 377×8-18 mm are produced from electroslag melting ingot billet of size 620×115×1750±25 mm, followed by insertion of ingot billet in the cross rolling mill in shell billet. Then, shell billets are heated, pierced and rolled in the cross rolling mill on a mandrel with a diameter of 440 mm with closing μ= 1.35 and rise in diameter δ=3.18% in shell with size 650×inner.455×2840-2930 mm. The shells are rooled on TPU 8-16" with Pilger mills with subsequent mechanical processing: boring and turning them into tube stock with size 474×18, 474×20, 474×24, 474×26 mm and rolled on the mill KhPT 450 in trade pipe size 377×8-18 mm.EFFECT: reduction roughness of pipes outer and inner surfaces, as well as their value.2 cl, 1 tbl
ethod of producing cold-deformed coupling pipes of 187,7×25×8300- 8500 mm from corrosion-resistant alloy of "хн30мдб" grade // 2613809
FIELD: metallurgy.SUBSTANCE: method comprises casting of hollow centrifugaly cast billets, their boring, heating to a ductility temperature, rolling at a Pilger mill and then on CRM mills, rolling at a Pilger mill on taper mandrels to re-rolled hot-rolled pipes, cutting to two pipes of equal length, cooling, boring and turning them into pipe billets and rolling them at CRM along regulated routes.EFFECT: possibile extending of assortmen and reduced metal consumption ensured by regulation of billets characteristics and sizes and their processing modes at all stages of production.1 tbl
ethod of producing cold-deformed coupling pipes of 114,3×6,88 mm size from corrosion-resistant alloy of "хн30мдб" grade // 2613807
FIELD: metallurgy.SUBSTANCE: method comprises melting of centrifugal cast hollow ingot-billets, their boring into hollow billets, heating, rolling at Pilger mill on taper mandrels to re-rolled hot-rolled pipes, cutting of re-rolled hot-rolled pipes into two pipes of equal length, boring and turning to re-rolled pipes and their rolling at CRM mill to commercial pipes.EFFECT: possibility of alternative method for quality pipes production, reduced metal consumption and costs provided by regulation of characteristics and billet dimensions and their processing modes at all production stages.1 tbl
ethod for producing cold-deformed coupling pipes of 187,7×25×12300-12900 mm size from corrosion-resistant alloy of "хн30мдб" grade // 2613806
FIELD: metallurgy.SUBSTANCE: method comprises production of hollow centrifugaly cast billets, their boring and turning, heating to a ductility temperature and rolling on Pilger mill and then on CRM mills.EFFECT: reduced metal consumption provided by regulation of characteristics of workpieces and their modes of treatment at all stages of production.1 tbl
Rolling mill stand with three working rolls // 2613777
FIELD: pipes.SUBSTANCE: invention relates to seamless pipes rolling with help of mandrel. Mill stand (1) defines rolling axis (X) position and includes support structure (3), three working rolls (5, 6, 7), each of which has corresponding central plane, passing along rolling axis (X), wherein central planes are located at angle of 120° to each other, and corresponding pad, cartridge (2), in which three working rolls are arranged (5, 6, 7) and pads, locking device (20) for pads in cartridge (2) position locking with provision of pads fixation in first radial position, in which cartridge (2) can be removed from support structure (3) and installed into support structure (3) in transverse direction relative to rolling axis (X). Simplification of working rolls replacement is provided due to fact, that locking device (20) contains three locking pins (15, 16, 17), attached to cartridge (2) and control device (14), connected by kinetic chain with three locking pins (15, 16, 17) with possibility of three locking pins common drive (15, 16, 17) with provision of locking by each of three locking pins (15, 16, 17) of corresponding pad in said first position.EFFECT: seamless pipes rolling.9 cl, 6 dwg

Test method for sheet materials (versions) // 2613495
FIELD: metallurgy.SUBSTANCE: circular, rectangular, square or other shaped blanks shall be cut from the test sheet material with dimensions exceeding the dimensions of the rift placed on the holder in the plan prior to forming of the blank in a device with a punch, die and a holder in the test machine or press. On one or both surfaces of the blank an anti-friction film is glued with a hole or without it and with external dimensions both inside and outside the rift. At the same time the firm grip with the rift is done along the edge of the blank with one or two anti-friction films.EFFECT: reduced labour and defect.12 cl, 10 dwg
ethod of producing hot-rolled sheets from constructional low-alloy steel with guaranteed maintenance of construction perfomance properties at low temperatures (versions) // 2613269
FIELD: metallurgy.SUBSTANCE: while producing thick sheets, austenitization of continuously cast ingot is carried out at 1200-1220 °C, finish rolling starts at 780-820 °C and finishes at 740-760 °C with a total reduction of at least 80% to a final sheet thickness of not more than 15 mm. Steel contains the following chemical composition, wt %: 0.17-0.20 C, 0.15-0.25 Si, 1.25-1.40 Mn, S≤0.006, P≤0.018, Cu≤0.10, Nb≤0.01, V≤0.01, 0.02-0.05 Al, Ti≤0.03, Fe inevitable impurities - the rest. While producing sheets of 15-25 mm thickness from the steel of the same composition, austenitization of continuously cast ingot is carried out at 1200-1220 °C, finish rolling starts at 830-860°C and finishes at 760-790 °C with a total reduction of at least 75%, wherein after the finish rolling the sheets are rapidly cooled to 620-670 °C. Production versions of the sheets of 40-80 mm, 80-120 mm, 120-160 mm thickness with the same steel composition are also presented. In all versions of the method, the rolling at the draft stage is carried out with one-time reductions of at least 7%.EFFECT: maintenance of perfomance properties at low temperatures.12 cl, 3 tbl
ethod of producing hot-rolled sheets from low-alloyed tube steel of k60 strength grade for longitudinal electric-welded pipes // 2613265
FIELD: metallurgy.SUBSTANCE: continuously cast steel ingots are produced containing, in wt %: 0.07-0.10 C, 0.20-0.35 Si, 1.60-1.75 Mn, not more than 0.10 of Cr, not more than 0.30 of Ni, not more than 0.20 of Cu, 0.010-0.025 Ti, 0.065-0.090 V, 0.040-0,060 Nb, not more than 0.5 of Mo, not more than 0.008 of N, 0.020-0.050 Al, not more than 0.004 of S, not more than 0.015 of P, Fe and inevitable impurities - the rest and having a total content of V+Ti+Nb not more than 0.15%, then the heating of the ingot to 1200±10°C, rough rolling with a regulated roll reduction in thickness, multiple of 4-5 thickness of the finished sheet, cooling down, finish rolling at the start temperature of 740-780°C and - and the finish temperature of 730-770°C, accelerated cooling to 580-680°C and air cooling are carried out to obtain a structure mainly consisting of bainite and ferrite.EFFECT: ensuring of the given mechanical properties of the finished steel.4 cl, 3 tbl
Hot rolling at wide-strip semi-continuous mill // 2613263
FIELD: metallurgy.SUBSTANCE: invention can be used in the production of wide strips with transverse gage interference not more than 0.06 mm in the semi-continuous hot rolling mills. The method includes rolling in rough and finish groups of stands . In the rough group of stands produce not more than 3 finishing passes, and in the finishing group of stands within the same working rolls campaign, in the first two group of stands the rolling is provided in the working rolls with concavity not more than 0.30 mm from the initial cylindrical barrel radius, and in the subsequent stands - in the working rolls with a concavity not more than 0.15 mm. In the beginning of working rolls campaign, the barrels heating-up of the working rolls is done by rolling not more than 30 strips with width B1<(B-50) mm, the next rolling minimum 900 t of rolled products with width B2,mm. At that B≤B2≤(B+50), and then rolling not more than 1500 t of rolled products with specified width B, mm, at the end of the working rolls campaign.EFFECT: increased accuracy of geometrical dimensions over the strips width.1 tbl
Production method of hot-rolled rolled stock from low-alloy steel // 2613262
FIELD: metallurgy.SUBSTANCE: method includes slabs heating in the temperature range of 1,230-1,250°C, subsequent multipass reversible rough and final rolling with regulated temperatures of the rolling beginning and end, and the rough rolling is completed at the temperature of not more than 1,000°C, the final rolling is started at the temperature in the range of 960-1,000°C and completed in the temperature range of 820-880°C. Final rolling includes 7-9 runs. Slab is made of steel containing in wt %: C=0.22-0.26, Si=0.30-0.40; Mn=0.75-1.10, Al=0.01-0.035, Nb=0.03-0.05, Cr not more than 0.3, Ni not more than 0.3, Cu not more than 0.3, S not more than 0.010, P not more than 0.015, N not more than 0.008, V not more than 0.05, Ti not more than 0.05, Fe - the rest. The end temperature of the final rolling is 820-850°C for sheets with thickness of 8-20 mm and 850-880°C for sheets with thickness 20.1-50.0 mm. In the hot-rolled sheet, a ferrite-pearlite structure is provided for with a grain size not larger than 9 points.EFFECT: ensuring a high level of heat stability and impact toughness.3 cl, 3 tbl, 1 ex

anufacturing method for welded titanium tubes // 2613256
FIELD: metallurgy.SUBSTANCE: tube blank (3) is received by bending flat sheet blank (2) and welding longitudinal edges (1). Rotary rolling of a weld (4) of a tube blank (3) mounted on a rotating mandrel (5) by means of pressing elements (6) of the hard tool (7) is performed. Annealing of welded titanium tube (8) is carried out to remove the residual stresses. Therein rolling of the weld (4) is produced with relative deformation of 8%≤ε≤20% along the wall thickness of tube blank (3), wherein ε=(t0-t)/t0×100%, where t0 is the wall thickness of the tube blank (3), t is the wall thickness of the welded titanium tube (8) after rolling the weld (4) and subsequent annealing - at temperature (Trs-170)°C≤Tann≤(Trs-50)°C which is determined from the range, where Trs is the temperature of recrystallization start of the titanium alloy,°C.EFFECT: increased strength and cycle life of welded titanium tubes through the optimal selection of thermomechanical processing parameters for tube round billets.4 dwg

Wheels manufacturing // 2613248
FIELD: metallurgy.SUBSTANCE: invention refers to metal treatment by pressing and can be used for manufacturing of wheels for vehicles. To manufacture the component of the rim base of the composite wheel, tubular workpiece is used, which is subjected to hot forming by depositing in the press mould. However, the desired shape is formed in the part of the workpiece. Part of the workpiece to be deposited is heated to the forming temperature at the treatment site in the press mould. Preferably, induction heating is used. During manufacturing of the rim base, the component, produced by the above method, is welded to at least one further component. The used press mould comprises two parts which are movable relative to each other and a heating element.EFFECT: invention provides for increase in durability and reliability of the rim base of the composite wheel.33 cl, 11 dwg
anufacturing method for parts from titanium alloys // 2613003
FIELD: metallurgy.SUBSTANCE: load carrying components are made of VT8 titanium alloy. Then heat treatment is sequentially performed in three stages. The first is carried out at temperature from 600 to 650 °C, at which the titanium silicides are released from supersaturated solid solutions -α and -phases β. The second is carried out at temperature from 850 °C and above, which is characterized by conversion of the phase composition from α- to β-. The third is conducted at temperature from 950 to1100 °C. At 1100 °C the phase composition of the alloy is represented only by β-phase.EFFECT: improved strength characteristics of VT8 titanium alloy parts.

Welding stand for longitudinal welded pipes of definite length assembling and welding // 2612881
FIELD: pipes.SUBSTANCE: invention relates to pipe welding, specifically to welding stands for longitudinal welded pipes of definite length assembling and welding. Stand comprises holder, in bases of which symmetrically to vertical axis upper and side roller cartridges with their displacement adjustment mechanisms are installed, upper pressure rollers with their displacement adjustment mechanisms in form of hydraulic cylinder and drive screw-nut kinematic pair, support rollers, installed at holder bottom and welding machine. Side roller cartridges displacement adjustment mechanism is arranged along holder base radius. Stand is equipped with installed on holder upper part rings sectors and moving carriages with support upper and lower rollers. On sliding blocks upper roller cartridges are mounted with hydraulic cylinders arranged on its opposite ends, on rods of which shackles with holes are fixed. Upper support rollers are made with eccentric. Each carriage has displacement drive.EFFECT: invention allows to increase pipes quality and reduce gauge setup duration.1 cl, 10 dwg
Device for rim cooling during thermohardening of rail wheels // 2612479
FIELD: metallurgy.SUBSTANCE: device comprises 2 bearing rollers, 2 supporting rollers and sprayers for coolant feed positioned between them. Sprayers for the cooling of the side surfaces of the rim positioned between the bearing rollers are made single-plane, and sprayer for cooling of the rim rolling surface positioned between the bearing and supporting rollers is made featuring the repetition of curvature of the rim rolling surface.EFFECT: reduction of cooling water consumption, facilitation of its removal, disposal of steam jacket formation between the quenching surface and cooling medium, ensuring that the cooling rates of the rim metal are below critical over the entire section to obtain structure of thin-platy perlite over the entire thickness of the rim and the exclusion of water entry in the wheel disks of adjacent devices.2 dwg, 6 tbl
ethod for producing structural element made of steel by means of thermoforming // 2612478
FIELD: machine building.SUBSTANCE: method of manufacturing a structural element made of steel, amenable to transformation during hot forming comprises heating the cut steel sheet metal plate to the austenitizing temperature, moulding secured after moulding is at least partially martensitic structure, while in rapid cooling of the sheet or plate after heating to the austenitizing temperature, to obtain a plate with conditioned at least partly martensitic, and then reheating is carried out to a temperature below ac1-temperature conversion and forming at this temperature.EFFECT: increase strength and corrosion resistance.17 cl

ethod and device for cooling surfaces in dispensing machines, rolling machines or other strip processing lines // 2612467
FIELD: metal processing.SUBSTANCE: invention relates to rolling. Method for cooling the rolling surface involves the use of an injector having inlet (3) and outlet (5) located opposite the cooled surface, herewith created is single-phase volume flow (V) of a cooling fluid medium, which through inlet (3) is supplied to injector (2) and leaves injector (2) through outlet (5). Reduced coolant and improving the cooling efficiency is provided due to that outlet (5) of the injector is installed at variable distance (d) from the cooled surface, herewith volume flow (V) of supplied to inlet (3) of the injector cooling fluid medium is adjusted in such a way, that injector (2) in accordance with Bernoulli principle is sucked to cooled surface (1). Cooling device (10) for implementation of the proposed by the invention method comprises appropriate equipment.EFFECT: rolling device includes cooling device (10).16 cl, 3 dwg

Device and method for side direction of rolling or cast article on transfer line // 2612466
FIELD: transportation.SUBSTANCE: invention relates to goods in form of strip or slab (2) transportation on transfer line (3). Device (1) contains first guide bar (4) and second guide bar (5), wherein guide bars (4, 5) are located opposite to each other on transfer line (3) both sides and for displacement in direction of transfer line (3) width are connected each with corresponding, at least, one servo drive (6), which are intended to actuate perpendicular to product (2) transportation direction (7).EFFECT: better orientation conditions and products centering on transportation line is ensured by fact, that first guide bar (4) and/or second guide bar (5) can be positioned by its corresponding longitudinal axis (4L, 5L) at certain angle (α) relative to slab (1) transportation direction (7), wherein first and/or second guide bar (4, 5) has two contact rollers (8), which are intended for bringing into contact with product (2) side section.25 cl, 10 dwg

ethod of vibrational reconstruction of deformed metal structures // 2612463
FIELD: machine building.SUBSTANCE: invention relates to the manufacture of welded metal structures with long welds receiving residual bending or twisting due to the formation of residual welding deformation. first nodes and sections and hulls of ships. The ends of the structure are rigidly fixed on a stand or table mounted through a support structure so as to obtain a reverse bump structure. For this pre-measured geometric design deviations from permitted values, ie, amount of deformation obtained. Identify these deviations and set on their support to create the reverse deformation, the dimensions and arrangement of the supports is selected so as to provide the feedback from the deformation of the structure, of the same magnitude but opposite in sign. Vibratory editing is performed on a resonant frequency of the structure. Thus exciter installed in the central part of the structure.EFFECT: increased form accuracy by reducing welding deformation.2 cl, 4 dwg
ethod for laser processing of ductile tool from zirconium dioxide ceramics // 2612182
FIELD: technological processes.SUBSTANCE: invention relates to tool industry, in particular to methods of processing a ductile tool from zirconium dioxide ceramics (zirconium dioxide-based ceramics ZrO2-Y2O3-ZrO). The method of laser processing of ductile tool from zirconium dioxide the tool surface is subjected to pulsed laser action, each pulse group of which forms a laser beam spot with a certain power of the beam on a sample, with the laser beam spot overlap ratio in the range from 0.1 to 0.9. The treatment is performed with the pulse repetition rate from 120 to 130 kHz, with the number of pulses in a group 95 and a power beam of the sample from 12 to 13 watts. Optimally, when the surface of the tool is subjected to pulsed laser irradiation from a laser beam spot overlap ratio in the range from 0.3 to 0.5.EFFECT: increase of durability of ductile tools.2 cl, 9 dwg
Lifting table // 2612116
FIELD: machine engineering.SUBSTANCE: table contains a lifting platform (13) with the engine (1), reducer (2) and drive shaft (3), at the opposite ends of which there are toothed wheels (4). When rotating, the gears (4) through the connection with the gear rack (5) are simultaneously moving in horizontal plane two drive racks (6), which are arranged in the rectangular cavity of the parallel bearing beams (12) of the platform (13). The drive racks (6) are centered in the parallel rectangular beams (12) cavity of the platform (13) by means of guide rollers with capability to move longitudinally. When moving, the drive racks (60) are rolled on the support rollers (10) by supporting strips (7) of the fixed part (8) of support pillars (14) and lift the platform (13). In the uppermost position of the platform (13) the supporting strip (7) rests by its lower horizontal part on the support roller (10) of the support pillar(14). The structure stability is provided by a telescopic form of the support pillars (14), which are simultaneously the guides for the vertical movement of the platform (13).EFFECT: lifting tables reliability increase.10 cl, 5 dwg

Device for cooling rolled article // 2612111
FIELD: metal processing.SUBSTANCE: invention relates to cooling rolled article (2), preferably in cold rolling. Device (3) includes nozzle (32) for application of cooling medium (34) onto rolled article (2), as well as connected allowing the liquid cooling medium with nozzle (32) and passing in fact parallel to plane (10) of the strip cooling chamber (4) for application of cooling medium (34) onto rolled article (2). Uniform application of the cooler and reduction of environmental pollution is ensured by the fact that the device has outer shell (7) and adjustment device (6) to change to the opposite one the direction of flow of cooling medium (34) in cooling chamber (4) by shifting outer shell (7) of device (3), herewith shell (7) is installed with the possibility of displacement from the first position into the second position, and depending upon its position – interconnection of two supplies (30) and two discharges (52) of cooling medium (34) with changing the direction of flow of cooling medium (34).EFFECT: cooling of the article.18 cl, 15 dwg

Tube cold-rolling mill stand drive // 2612110
FIELD: pipes.SUBSTANCE: invention relates to periodic tube rolling and can be used in drives for movement of mill stands, in particular tube cold-rolling mill stands. Tube cold-rolling mill stand drive comprises engine (1), crank (2) fixed on one side on the vertical shaft of engine (1) and equipped with pins (3) and (4) located on its end and articulating crank (2) with tie rod (6). Cartridge (7) of the mill is installed with possibility of back-and-forth movement under action of rigidly connected tie rod (6). High reliability of the drive is provided by the fact, that weight balancing load (8) equipped with through hole (9), is installed in guides (10) with possibility of transverse movement relative to the rolling axis, tie rod (6), crank (2) and slider (5) are installed with possibility of free passage through hole (9) of weight balancing load (8), slider (5) is installed with possibility of back-and-forth movement on guides (11) along the rolling axis and is equipped with hole (12) for rolled product (13).EFFECT: movement of tube rolling mills.1 cl, 3 dwg

ethod for production of heat-strengthened steel wire // 2612104
FIELD: manufacturing technology.SUBSTANCE: invention relates to methods of producing wire by drawing using formation of nanostructures in metal, including in its surface layer, and can be used in production of high-strength heat-strengthened steel wire. Method includes uncoiling a rolled wire, straightening, first induction heating of wire to 1,000 °C, its thermal-deformation hardening, post-deformation curing, hardening, second induction heating to tempering temperature, cooling and coiling in bundle.EFFECT: preventing breakage and improved strength characteristics of wire are ensured due to that, thermal-deformation hardening of wire is carried out by its rolling in-series installed rollers with total deformation degree up to 80 % and with deformation degree in last one of which is equal to 15–20 %.4 cl, 1 dwg

ethod to manufacture grid of riffles on inner surface of shell and device for its realization // 2612052
FIELD: transportation, packaging.SUBSTANCE: invention relates to special manufacturing of shells with notches in the inner surface to form a grid of riffles. The grid of riffles is made with faces at the angle of 120° relative to riffle top, reduction is carried out with alternating thickness of wall along shell height with taper angle γ=arctg0.5(dmax-dmin)/L, where dmax and dmin - maximum and minimum diameters of a helical ledge, mm; L - shell length in axial direction, mm. In the end of each reduction they perform axial displacement of a stock without its rotation relative to the working insert by the value of 0.1-0.2 of riffle depth, and then the stock is screwed off. In the device the pusher is made with dead cavity. In the cavity of the pusher there is a spring fixed by pins and an instrumental rod capable of axial rotation, between ends of the pusher and the working insert there is a structurally calculated gap hoc, the shape of the helical ledge surface in the cross section of the working insert is made with the angle at the top of 60° with height of 0.8 of the riffle depth, changing to the surface with the taper cone 120° and total height of the helical ledge, equal to 1.25-1.3 of the riffle depth. The working side surface of the working insert is made as tapered with the taper angle γ.EFFECT: invention makes it possible to increase quality of manufacturing of a grid of rhombic riffles on inner surface of a shell without burrs from screwing off and to reduce labour intensiveness of the process.2 cl, 4 dwg
ethod of producing rod parts with heads made from two-phase (α+β) titanium alloys // 2611752
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, particularly to production of rod parts with heads made from titanium alloys, and can be used in aerospace engineering, as well as chemical machine building, ship building and automotive industry. Method of producing rod parts with heads made from two-phase (α+β) titanium alloys involves tempering of workpieces, application of surface thereof of a solid oxalate coating, molding parts by cold plastic deformation with planting heads and multiple reduction of rods and ageing of obtained parts. Tempering of workpieces is carried out in vacuum furnace at 720–740 °C with further cooling, multiple reduction of rods is performed with deformation degree of 10–30 %, ageing of parts is carried out in an electric furnace in air at 240–260 °C for 4–8 hours with further hydro-polishing of parts and thread rolling.EFFECT: higher strength and longevity of articles.1 cl, 1 tbl, 2 ex

Piercer for compression blanks // 2611634
FIELD: metallurgy.SUBSTANCE: piercer for tube blank compression consists of a container, die with a retaining mandrel, an extrusion ram with a movable piercing mandrel concentrically and axially located with a gap therein and containing a removable tip. There is a washer with an axial bore on the front side of the extrusion ram. Its end surface is designed with a frustum-of-a-cone hole expanding towards the blank. The radius of the smaller base of the cone is greater than the radius of the washer bore.EFFECT: reduced tube compressing force and metal consumption ratio.2 dwg

Ball bearings raceways rolling and stabilization plant // 2611615
FIELD: machine building.SUBSTANCE: invention relates to ball bearings races raceways rolling. Plant includes ball mandrel with deforming elements in form of balls, loading mechanism and mechanism for installation and rotation of workpiece. In loading mechanism electronic dynamometer is installed. Between loading mechanism and ball mandrel is installed misalignment of axes compensator of ball mandrel and workpiece in form of elastic gasket or hinged bearing. Used ball mandrel is ball bearing opposite upper race. In mechanism for installation and rotation of workpiece rolling bearing is installed as support. Deforming balls have diameter, equal to rolling bearing balls diameter.EFFECT: result is higher quality of bearing.1 cl, 1 dwg, 1 ex

ethod of flexible parts straightening and stabilization // 2611614
FIELD: machine building.SUBSTANCE: invention relates to parts straightening. Deforming tool removal after part deformation is performed gradually with supply S ≤ (0.01–0.05)Δ, during time where S is deforming tool feed, mm/Rev, Δ is maximum part deformation during straightening, mm, n is part rotation speed, rpm, k is plastic deformation dimensionless coefficient, k>1. Result is higher quality of parts straightening.EFFECT: performing part rotation and deforming tool impact onto it causing plastic deformation in it.1 cl, 1 dwg, 1 ex

Pipe manufacturing processes on continuous tube-welding units // 2611462
FIELD: mechanical engineering.SUBSTANCE: method comprises butt welding of the strips ends of in a continuous strip, joint detection of the strips ends at the site prior to forming the strip, forming the strip into a tube with a slit, heating and welding of its edges, calibration and/or shaping the welded workpiece. The measurements of continuous billets length are made; at the time of detection of the joint or immediately after stopping the welding the determination of the total length to be cut a continuous tubular blank section is made, the determination of the number of dimensional pipes and pipe of shorter length, which must be cut to remove the defect at the end of the pipe, and the determination of the length of the truncated pipes, drives the moving mechanism of management of continuous billets for the withdrawal of the workpiece on the operating speed, stopping the drive in the automatically defined point in time in case of non-urgent stop welding, reduce, prior to the cutting of pipes to shortened length, workpiece transfer speed to the value, defined by the mathematical relationship, with increasing the speed of workpiece motion after stopping the cutting process of the shortened pipe. Changing the supply source power of the welding machine is produced in accordance with a variable rate of displacement of continuous billets and the drive of the volatile cutting machine is controlled for its cutting into the dimensional pipe and shortened pipe with breeding the defect on the pipe end.EFFECT: increasing the output of tubes of measured length, reducing the number of pipes shortened length and waste.1 dwg
ethod of producing high-strength rolled product of austenite stainless steel with nanostructure // 2611252
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, particularly, to metal forming, specifically to production of high-strength rolled product of austenite stainless steel with a nanocrystalline structure, which can be used as structural material. Method of making rolled product comprises hot forging at 1,373 K to true straining ε=0.5 with subsequent cooling in water, obtained semi-products undergo warm rolling into a sheet to true straining ε=3 at 473–673 K, which prevents martensitic transformation.EFFECT: technical result consists in production of rolled product of austenite stainless steel with nanocrystalline structure and improved strength properties, yield strength is more than 1,000 MPa.1 cl, 2 dwg, 1 tbl
ethod of manufacturing composite workpieces of disc-disc and disc-shaft type out of heat-resistant titanium and nickel alloys // 2610658
FIELD: metallurgy.SUBSTANCE: invention refers to metallurgy and can be applied in manufacturing of heat-resistant nickel alloy articles used in aviation industry and power engineering. To obtain a composite workpiece of disc-shaft type out of heat-resistant nickel alloys, workpiece parts with prefabricated structure are made. The parts are joined in advance, and the composite workpiese undergoes isothermal deformation. Then the composite workpiece undergoes hot isostatic pressing and heat treatment. The method involves preliminary joining of composite workpiece parts by vacuum soldering, and isothermal deformation of the composite workpiece is performed in the air with total deformation ratio of at least 50 %.EFFECT: increased metal utilisation rate, reduced time and energy cost for workpiece manufacturing.4 cl, 1 tbl, 3 ex

ethod of metal and composite workpieces producing from sheet materials // 2610653
FIELD: technological processes.SUBSTANCE: invention relates to metal forming, specifically to production method of metal and composite workpieces from sheet materials. Preheated sheet material is wound on mandrel, made from material, which linear expansion factor is not less than wound on it layers material linear expansion factor. At that, outer layer is made from material, which linear expansion factor is not more than inner layers linear expansion factor. Material ends are secured and performing wound layers sintering. At that, wound into roll sheet material winding, is carried out with tension of 0–40 % of wound material permissible stresses at rate of 0.2–20 rpm. After winding wound layers are heated and sintered again. At that, winding speed is selected under condition of provision every next layer temperature exceeding previous layer temperature.EFFECT: improving winding density.14 cl, 3 dwg
ethod for producing axially symmetrical parts of copper-based heat-resistant alloys // 2610646
FIELD: metallurgy.SUBSTANCE: alloy melting is performed, from which an axially symmetrical blank with a fine crystalline non-segregated structure and with a certain wall thickness is obtained by casting and crystallization. Metal spinning is performed to the specified wall thickness in at least one pass.EFFECT: extended technological capabilities, improved part quality.8 cl, 3 ex
Centrifugally cast composite roller and way of its manufacturing // 2610645
FIELD: metallurgy.SUBSTANCE: present invention relates to composite rollers used in rolling process. Centrifugally cast composite roller comprises an outer layer made of cast iron, comprising, by wt %: 2.7-3.5 C, 1.5-2.5 Si, 0.4-1.0 Mn, 3.7-5.1 Ni, 0.8-2.2 Cr, 1.5-4.5 Mo, 2.0-4.5 V and 0.5-2.0 Nb, remaining Fe and unavoidable impurities, wherein the weight ratio of Nb/V is 0.18-0.65, and the weight ratio of Mo/V is 0.7-2.5, and the iron structure includes calculating the square phase 15-45%, 1-10% cementite and graphite phases, and an inner layer made of cast iron, is metallurgically bound to the outer layer; thus suitable for use in the rolling region of the outer layer depth of 10 mm or more, the surface has no dendrites segregated bainite and/or martensite having a diameter of 1.5 mm or more.EFFECT: document describes the structure and method of manufacturing centrifugal composite roller.9 cl, 9 tbl, 7 dwg

ethod and device for manufacturing molded products // 2610643
FIELD: metallurgy.SUBSTANCE: invention relates to the manufacture of molded articles made of sheet steel with high tensile strength with trough cross-sectional shape having the bottom of the trough, ribs, side walls and flanges. Compression molding is carried out in two stages. Herein at the first stage the shoe presses the part to the punch to mold a trough bottom, and a part area to mold a rib. At the second stage the remaining parts are molded.EFFECT: increased product quality by eliminating notches on the edge of the flange area adjacent to the rib.12 cl, 13 dwg

ethod of gear wheel fabrication // 2610642
FIELD: mechanical engineering.SUBSTANCE: method comprises the manufacture of steel disk with technological oversize on the outer diameter, its heating and plastic deformation of the ring-shaped disc section, which is intended for cutting teeth forming a gear wheel crown by moving relative to each other by mutual pressing of the roll and the workpiece as the at least one end. During the running exercise, the heating of the run-section is made, wherein the roll is moved in a plane parallel to the plane end blank with the center of its rotation relative to the workpiece coincident with the center of the workpiece, the width of the rolled section in a radial direction relative to the workpiece is chosen equal to the sum of the height of the gear ring, the width of the outer technological allowance and allowance for the width of the rolling circumference of the base ring gear toward the center of the preform.EFFECT: improving of the mechanical characteristics of the gear due to the increase in mechanical properties of the workpiece for its manufacture.1 dwg

Energy saving device for steel production and method for its implementation // 2610430
FIELD: metallurgy.SUBSTANCE: steel is heated to a casting temperature of more than 1,500° C, and continuously casted into the appropriate mould to obtain a semi-finished product. The said product is fed to the rolling mill at the temperature of 850 - 900°C by the vehicle and heated to the temperature above 1,000°C corresponding to the temperature of maximum plasticity in an induction tunnel furnace with intermediate rollers, and then the product is rolled.EFFECT: optimization of heat amount used to heat the steel to the temperatures of subsequent stages of its processing that allows to reduce power consumption.2 cl, 2 dwg
 
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