Production line for wire
The line can be used for production of profiled wires or rods of solid cross-section of any desired geometric cross-sectional shape. The line includes uncoiler roll of tape, novokletevoj roll forming mill drive, cutting device, and rotary clamp installation and calibration device installed sequentially mnogotselevym roll forming mill to the cutting device. The profiled wire is produced sequentially by the transitions pogibli rollers of the roll forming mill strip workpiece in the direction of the middle of the billet and the subsequent calibration. This is an opportunity to obtain high quality durable wire or rod from a strip of the workpiece. 9 C.p. f-crystals, 18 ill. The invention relates to the processing of metals by pressure, namely lines, in particular to automatic lines for the production of profiled wires (or rods) solid cross-section of any desired geometric cross-sectional shape (circular, square, triangular, and so on).Famous line for the production of woven wire, with whom Roy rigidly secured the roll with tape. The actuator causes the rotation of the frame, on which is fixed a worm wheel, obkatyvaem around rigidly mounted on the frame of the worm. The rotation of the wheels is transmitted through chain transfer coil, which pulls the twisted wire (RU, patent 2053036). This wire is intended for use as reinforcement for concrete.The known device for the manufacture of wire drawing: - to receive wire from expensive alloys and precision (RU, patent 2098206); - for receiving wire from a tape or secondary raw - edge trimmings (RU, patent 2147259); - to obtain a copper wire of small diameter (RU, patent 2149225); a device - rolling mill to obtain a wire with various shaped cross-sections (RU, patent 2166393).The above known devices, because of their nature are not applicable for the manufacture of durable inexpensive wire the desired profile cross-section (circle, square, rectangle, trapezoid, triangle, hexagon, oval, segment, and so on) and diameter for use in building constructions (for example, in suspended ceilings "Armstrong", during installation of gypsum boards), in engineering and other fields.The famous line, the taxes of the present invention in connection with the because of their design, they are the closest to the proposed line.In particular, the well-known line for the production of long thin-walled profiles from a strip of material. The line includes roll forming mill, on the frame which has the working drive and non-drive rollers with feeding, forming and calibrating rollers, kinematically interconnected and driven. Between the forming rollers placed side non-drive horizontal forming rollers, there is also a mechanism for adjusting the center distance between the rollers. Between the lateral horizontal forming rollers along the axis of the molding profile is fixed in the vertical plane support and the support rollers. Forming the surface of the last pair of lateral horizontal forming rolls made with an angle of inclination to the axis of the formed profile. The mechanism for adjusting the center distance as two eccentric bushings mounted concentric on the non-driving work roll and connected by means of bevel gears with the gear-shaft (RU, patent 2006314).Closest to the present invention is a plant for the production of long shaped istwo and roll forming mill. The cutter line is made in the form of a drum shears with drums of different diameters, kinematically connected to the pulling rollers, roll forming mill is made with chain drive console installed in the cushion supports the lower roll and the upper roll of the first two and the last two stands, and the top cushion of the second and last stands are made with mounting bracket to accommodate the idler gear wheels (EN, application 95112290).This line cannot be used for the manufacture of wire or rod from a strip of material, as it fails to provide a crimping of the workpiece to obtain a solid section of a given shape.The problem solved by the present invention is the creation of lines for the manufacture of wire, of solid section of any geometric shape (circle, square, rectangle, trapezoid, triangle, hexagon, oval, segment, and so on) and the desired diameter blanks from a strip (tape), which can have, for example, corrosion or other coating and can be made of any sheet material, such as waste production.The technical result provided by the invention, is that this is an opportunity to receive the wire does not require additional process steps for applying corrosion-resistant coating when using blanks with the appropriate coating. The resulting product is relatively inexpensive due to the fact that as the workpiece for receiving the wire used any strip material, including waste generated during the cutting of rolls of sheet material, including galvanized. High-quality and relatively inexpensive wire you can get consecutive transitions of pogibli rollers of the roll forming mill workpiece in the direction of the middle part of the procurement and subsequent calibration in the calibration line installation, with wire of different diameters and cross-sectional profile can be obtained on the same line through its reconfiguration.In accordance with the invention the profiled wire is produced by consecutive transitions Podlipki rollers of the roll forming mill strip workpiece in the direction of the middle of the workpiece. In this first exercise in pairs symmetric with respect to the longitudinal axis of the workpiece pogibko (spin, sealing) sequentially in the direction from the edges toward the middle so that the first two bending edges of the workpiece symmetrically bent in towards the middle of the workpiece to contact the inner surface of the first angled castleblaney to contact the inner surface of the forming section with the rest of the blanks, and the last (Central) final ACC carried out prior to contact between the external surfaces of the sections formed by the penultimate pairwise symmetric bending. In the last final passage, the rotary unit by means of Cams which define the cross-section of the finished wire, the workpiece is crimped to address possible gaps in its cross-section, deformability and is calibrated to the specified parameters.The above-described operations are carried out by the line, which in the technological sequence - uncoiler roll of tape, novokletevoj roll forming mill with drive - off device, and the line is equipped with rotary swaging installation and calibration device installed sequentially mnogotselevym roll forming mill to the cutting device.Uncoiler roll of tape may be provided with a braking device.The line can be equipped with a lubricating device mounted behind the decoiler roll of tape and containing rollers immersed in the lubricating fluid.Rotary clamp line installation can be made in the form of a shaft associated amatively billet posted by crimping rollers and Cams.When this rotary Cams-crimp installation can be made removable to provide a predetermined cross-sectional shape of the wire.The calibration device may include a feed mill, kinematically linked chain transmission with roll forming mill, and two pair of gauge rollers with grooves, the dimensions of which determine the diameter of the finished wire.Moreover, calibrating rollers of the calibration device can be configured to preload the lower calibration rollers with eccentric through the plunger and stops.Novokletevoj roll forming mill line mainly made in the form of base ten work stands, providing a consistent "spin" of the workpiece from the periphery to the middle, and the drive roll forming mill used the drive.The line can be equipped with a counter linear displacement of the workpiece associated with a cutting device.This cutting device is equipped with individual hydraulic drive and is made in the form of a carriage moving on rails, in this case the carriage is provided with a Bush-knife, and inside the housing is installed with the possibility of progressive PCs move the wire from the tape material.In Fig.2 - section a-a of Fig.1 (uncoiler roll of tape).In Fig.3 - feeding cage.In Fig.4 - section d-D in Fig.3.In Fig.5 is a view of B in Fig.3.In Fig.6 is a view As in Fig.1 (roll forming mill).In Fig.7 - section b-b of Fig.6.In Fig.8 - section G-G in Fig.6.In Fig.9 - installation of the rotary clamp.In Fig.10 - section b-B in Fig.9.In Fig.11 - section H-H of Fig.10.In Fig.12 - section e-E in Fig.1 (instrument calibration).In Fig.13 is a view In Fig.12.In Fig.14 - section K-K in Fig.1 (cutting device).In Fig.15 - carriage cutting device.In Fig.16 - view Of Fig.15.In Fig.17 - section And in Fig.15.In Fig.18 is a cross section of profile wire of round cross-section prior to submission to the rotary clamp installation and calibration of the device.The automatic production line profiled wire, of solid section of any geometric shape of the metal strip consists of: - decoiler coil tape - 1,
- lubricating device 2,
- stand-feed - 3,
- mnogoluchevogo roll forming mill - 4,
rotary swaging installation - 5,
calibrating device 6,
the cutting device 7,
the receiving table 8,
Yes the exact brake 44, perpendicular to the shaft by means of bevel gears installed rack 11 with clamps to roll and clamps 12. Lubricating device 2 includes a roller immersed in the tank with lubricating fluid.The input shaft 3, mounted on the frame roll forming mill 13, kinematically connected with the drive mnogoluchevogo roll forming mill transmitting node 14 (Fig.4) and the chain transfer tension node 15 to the driving sprocket of the lower shaft 16 of the feeding cage, and gear from the bottom of the shaft to the top 17.The buildings, which are the upper and lower shafts, connected by rigid links. The lower and upper shafts 16 and 17 contain the working rollers, interacting with each other.Novokletevoj roll forming mill 4 (Fig.6, 7, 8) has ten working stands and the actuator 18, which is kinematically connected by means of drive sprockets and gears of the gear train 19 (installed on the frame of the mill) with the gear wheels of the bottom 20 and top 21 business stands.The buildings work stands contain lugs 22, which can be drawn in the working rollers 24 and 25 by means of a spring 23. Working rollers 24 and 25 are estimated major surface, obespechivaya-clamp (Fig.9, 10, 11) includes a rotating shaft 26, kinematically associated with the electrical installation 45. The shaft has a housing with a holder 27 which is placed in the rollers 28 and special Cams 29.The calibration device 6 (Fig.12, 13) contains the crate feeding 30, kinematically associated with the roll forming mill through chain transfer and block with tension sprocket and sprocket-clutch 32 on the drive shaft of the feeding cage.The installation includes two pairs of contact between a calibration rollers 33 with grooves around the circumference of the rollers (the size of the gutters of the contacting rollers are made in such a way that together they equal to the diameter of the wire is required at the end of the line).Top calibrating rollers have the opportunity to compete against lower gauge rollers with eccentric 34 through the plunger and the stop 35.Cutting device 7 (Fig.14, 15, 16, 17) with individual hydraulic drive (not shown) contains a welded rack 36, within which is placed the load on the cable. The cable passes through a guide roller 37 and is fixed on the carriage of the cutting device 38. The carriage of the cutting device is moved along the guide rails 39 on the rollers under the action of a load suspended by a rope.The slide cutting device which contains a sleeve-knife 42 and the clamping sleeve 43.The line also contains a receiving table 8, the linear displacement sensor 9 and the remote control 10.Automatic line works as follows.Roll with ribbon given the estimated width (the width of the ribbon depends on the parameters of the geometric shape profile wire: round, square, hexagonal, triangular) is installed on the coil 1 and fixed by the clamps and the clamps 12. Free unwinding of the tape is retarded braking device - a tape brake 44, located on the shaft of the uncoiler 10.When installed on the decoiler a new roll of tape the free end of the tape from the decoiler is fed manually to the rollers lubricating device 2, is immersed in a lubricating fluid.Of the lubricating device, the free end of the tape is fed into the input shaft 3 and is tucked between the working rollers of the cage 16 and 17.The operator using the remote control 10 includes a drive roll forming mill 18.Automatic feeding tape through the input shaft 3 occurs by means of the kinematic transmission of rotation from the drive roll forming mill through the transmitting node 14 through the tension node 15.Automatic profiling of the workpiece origin is Alikov 24 and 25. When the rollers are set for profiling with a certain gap with the aid of lugs 22 and springs 23.Procurement profile wire takes the form shown in Fig.18, after the release of their 10th cage roll forming mill ("Method of manufacturing a core wire, of solid section of any geometric form, the application 2000124014 from 20.09.2000. CJSC "arcade" , Smolensk).Billet wire enters the rotary clamp installation 5 to give the solid wire (Fig.9, 10, 11). The workpiece is fed through the rotating shaft 26 (individual drive) in the holder 27 by means of squeeze rollers 28 and special Cams 29 receives a substantially continuous geometric cross-section.After crimping the wire enters the calibration device 6 (Fig.12, 13), where the input shaft 30 by means of calibration rollers 32 and 33 provides a lapping wire diameter to the desired size. Actuator calibration device is performed by a chain drive 31 from the drive roll forming mill.The working gap between the sizing rollers is adjustable eccentrics 34 through the plunger and the stop 35.Ready profiled wire of a solid cross-section of a given geometric foprisa.The carriage of the cutting device is at the initial position before the appearance of the finished wire from the calibration device. The free end of the wire abutting the rod-knife 41, pushes the carriage along the guide rails 39, while the counter linear displacements gives a command to the hydraulic piston, a knife 41 and he rises, releasing the free end of the wire through the sleeve 43, 42 on the estimated length of the desired cut. Rod-knife 41 and Bush-knife 42 cut of the settlement period, which is sinking under its own weight on the reception Desk.The carriage of the cutting device under the action of the load on the cable returns to its original position to stop the cycle repeats.
1. Production line for wire containing uncoiler roll of tape, novokletevoj roll forming mill with drive and a cutting device, characterized in that it is equipped with rotary swaging installation and calibration device installed sequentially mnogotselevym roll forming mill to the cutting device.2. Line p. 1, characterized in that the decoiler roll of tape provided with a braking device.3. The line for the s and containing rollers, immersed in the lubricating fluid.4. Line p. 1, characterized in that the rotary clamp apparatus comprises a shaft associated with the individual drive installation, the housing and the ferrule, which is symmetrical relative to the longitudinal axis of workpiece posted by crimping rollers and Cams.5. Line p. 4, characterized in that the Cams rotary swaging units are interchangeable to provide a predetermined cross-sectional shape of the wire.6. Line p. 1, wherein the calibration device comprises a feed mill, kinematically linked chain transmission with mnogotselevym roll forming mill, and two pair of gauge rollers with grooves, the dimensions of which determine the diameter of the finished wire.7. Line p. 6, characterized in that the upper calibrating rollers of the calibration device is arranged to preload the eccentric through the plunger and the stop on the bottom of the gauge rollers.8. Line p. 1, characterized in that novokletevoj roll forming mill made desyatiletiem, and used as a drive actuator.9. Line p. 1, characterized in that it has a sensor linear displacement of zag is prohibited individual hydraulic drive and is designed as a carriage, moving on rails, in this case the carriage is provided with a Bush-knife, and inside the housing is installed with the possibility of forward movement of the rod-knife.
FIELD: equipment for working wire at process of making it, possibly changing contour of wire cross section, for example for rounding ribs of tetrahedral wire.
SUBSTANCE: wire production line includes multi-row disc shears for slitting coiled material; unit for working wire ribs; apparatus for plastic working of wire in the form of rotor with axial opening for wire. Said apparatus is mounted with possibility of rotation around wire from drive unit of rotor. Line also includes at least one pair of rolls mounted in rotor with gap for passing wire. Said rolls are mounted with possibility of rotation from drive unit of rolls in direction of wire feed. One roll is cylindrical, other roll has working protrusion with cylindrical surface or several such protrusions mutually spaced by intervals.
EFFECT: possibility of producing in line thin and super-thin wire with low tearing.
FIELD: plastic working of metals, namely processes for manufacturing rods of titanium alloys used, for example for manufacturing fastening parts.
SUBSTANCE: method comprises steps of hot rolling billet formed of ingot; etching formed rod, subjecting it to vacuum annealing, daring, subjecting drawn rod to air annealing for two stages and mechanically working for final size. In first variant of invention air annealing is performed at first at temperature 650 - 750°C for 15 - 60 min at cooling in air till 20°C and then at temperature 180 -280°C for 4 - 12 h at cooling in air till 20°C. According to second variant of invention air annealing is realized at first at temperature 750 - 850°C for 15 - 45 min at cooling in furnace till 500 - 550°C and then cooling in air till 20 °C.
EFFECT: homogenous structure along rod section, increased rupture limit strength and percentage elongation, lowered labor- and power consumption.
2 cl, 1 tbl, 2 ex
SUBSTANCE: device includes heated container, screw with drive and two rolls with similar diameters one of which is provided with groove, and the other one is provided with projection, which form closed pass at the outlet of which a matrix with hold-down device is installed. Between container and rolls there located is antechamber having inner cavity with variable cross section and consisting of section of rectangular cross section the dimensions of which do not exceed the pass height as to the height at cross point of maximum diameters of roll with groove and roll with projection, and as to width they correspond to width of closed pass, and section of conical cross section, the minimum sizes of which coincide with sizes of section of rectangular cross section, and maximum diameters at the boundary with container are determined with diameter on the basis of the following: where D - diameter of antechamber at the boundary with container; b - width of closed pass; hmin - height of closed pass in the smallest cross section.
EFFECT: use of the device allows improving the quality of items owing to improving mechanical properties and enlarging manufacturing capabilities.
2 cl, 2 dwg, 1 tbl
SUBSTANCE: invention relates to metallurgy, and namely to methods for obtaining high-strength and high-viscosity fasteners of any structural parameters with and without a thread. The method for obtaining fasteners from low-carbon alloyed steel of 15Kh3G3MFT type involves hot plastic deformation of an ingot of low-carbon steel so that a rod is obtained with further cooling in the air, heat treatment at temperatures of complete austenisation with accelerated cooling, cold plastic deformation using die blocks, and upsetting. In order to perform martensitic hardening, accelerated cooling is performed in the air from temperature of hot plastic deformation. After accelerated cooling in the air is completed, cold plastic deformation is performed with degrees of 55-60% by a method of radial forging with strikers arranged uniformly around the rod and forming at closure an inner surface of a conical profile, thus forming a detachable die block, and a rod of the specified diameter of the workpiece of the fastener is obtained. After that, heat treatment is performed by accelerated heating for hardening with austenisation at the temperature of 850-1000°C by charging the workpiece into a hot furnace with air atmosphere; then, accelerated cooling is performed so that a structural state of packet nanomartensite is obtained simultaneously with upsetting of the workpiece in austenitic state so that a head for bolts is obtained or without any upsetting so that the specified structural parameters of a fastener are obtained.
EFFECT: invention provides simultaneous improvement of a set of mechanical properties (strength, reliability and relaxation resistance) of fasteners; enlargement of a field of use of systemic low-carbon alloyed steels.
1 tbl, 2 dwg
SUBSTANCE: workpiece is arranged in two supporting and moving supports; tensile and compressive stresses are created by movement of the workpiece through a tool with creation of an electroplastic effect by using pulse or direct current. As the tool, a die with equal cross channels is used, and as supports supporting and moving the workpiece and at the same time as a source of pulse or direct current, reversible line motors are used. Tensile and compressive stresses are created with a combination of force action directions; for that purpose, reversing of line motors is performed, and the value of created stresses is controlled by variation of the value of forces developed by the motors.
EFFECT: improving mechanical properties of metal due to formation in it of fine-grained equiaxial structure.
SUBSTANCE: method of thermomechanical processing of rods from biphase titanium alloys with a molybdenum equivalent of 3.3 to 22% includes hardening of the rod and its cold deforming. Before hardening, the rod is subjected to hot deformation at the temperature in the range of 500°C through Tpt-20°C with the axial texture β-phase <110> with a pole density of, at least, three. Hardening of the rod is carried out at temperatures ranging from 720°C to Tpt followed by a cold deformation along the axis of the rod at the temperature of not more than 300°C and with a relative elongation of 1 to 30%, where Tpt - the temperature of the polymorphic transformation of the alloy.
EFFECT: alloy is characterized by a low thermal coefficient of linear expansion at high strength and satisfactory plasticity.
1 dwg, 2 tbl, 1 ex
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.