CN201815624U - Upsetting flange manufacturing device - Google Patents

Upsetting flange manufacturing device Download PDF

Info

Publication number
CN201815624U
CN201815624U CN2010205111192U CN201020511119U CN201815624U CN 201815624 U CN201815624 U CN 201815624U CN 2010205111192 U CN2010205111192 U CN 2010205111192U CN 201020511119 U CN201020511119 U CN 201020511119U CN 201815624 U CN201815624 U CN 201815624U
Authority
CN
China
Prior art keywords
flange
upset
upsetting
workbench
semicircle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010205111192U
Other languages
Chinese (zh)
Inventor
岳炳坤
岳江全
岳江峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN2010205111192U priority Critical patent/CN201815624U/en
Application granted granted Critical
Publication of CN201815624U publication Critical patent/CN201815624U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Forging (AREA)

Abstract

The utility model provides an upsetting flange manufacturing device and relates to a flange manufacturing device. The upsetting flange manufacturing device comprises an upsetting workbench and an IGBT (Insulated Gate Bipolar Translator) induction heating device; a first push iron and a second push iron are symmetrically arranged on the upsetting workbench; the first push iron is fixedly connected with one end of the upsetting workbench; the second push iron is horizontally arranged at the other end of the upsetting workbench and connected with a pressure oil cylinder through a piston; two groups of fixing bolts for connecting pressure rods are also symmetrically arranged on the upsetting workbench; and the IGBT induction heating device comprises two IGBT induction heaters which are correspondingly arranged on the two sides of the upsetting workbench. The upsetting flange manufacturing device has the benefits that the device investment and the energy consumption are low; the cost is saved by about 30%; the production efficiency is improved by multiple times; the quality of manufactured flanges is also ensured; a semicircle of the flange is subjected to heating and upsetting to ensure no-scar welding at an interface, thereby promoting the crystallization regeneration on the upsetting surface and ensuring that the strength of the joint is the same as that of sheet materials.

Description

The manufacturing equipment of upset flange
Technical field
The utility model relates to a kind of equipment of making flange, a kind of specifically manufacturing equipment of upset flange, and the flange semicircle hot pressing upset that molding press is suppressed docks into flange.
Background technology
Flange all is widely used at industry-by-industry and field, flange production at present mainly is to adopt method such as forge, cast and roll, just must forge with the big flange of forging method production whole steel ingot cutting, and need carry out repeatedly heats forged, the waste material and the energy, product quality is lower, pollutes also serious; Be subjected to the restriction of flange size, production rolls the equipment that rolls that flange needs the different size costliness, equipment investment is still very big, to roll back distortion serious in addition, and the leveling difficulty also needs to clear up, operations such as bevel and welding, waste of manpower, strengthened production cost, production efficiency is also low simultaneously, is easy to generate weld defect; Produce flange with casting method and need do sand mo(u)ld, melt metal, casting, and be easy to generate trachoma and defectives such as pore and slag inclusion, because intensity is low, the scope of application is restricted greatly, and general staple product does not adopt this kind production method.
The utility model content
The utility model purpose is the deficiency for solving the problems of the technologies described above, a kind of manufacturing equipment of upset flange is provided, the input of equipment and the consumption of the energy are low, cost savings are more than 30%, production efficiency has improved several times, the diathermanous upset of flange semicircle has promoted upset face crystallization regeneration, makes junction intensity be equal to advantages such as sheet material.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be: the manufacturing equipment of upset flange, form by upset workbench and IGBT induction heating apparatus, being arranged with first on the upset workbench pushes away iron and second and pushes away iron, first pushes away iron fixedlys connected with an end of upset workbench, second pushes away iron level is arranged on the other end of upset workbench and is connected with oil pressure cylinder through colluding shellfish, on the upset workbench, also be arranged with two groups of gim pegs that connect depression bar, the IGBT induction heating apparatus is made of two IGBT induction heaters, and the corresponding both sides that are arranged on the upset workbench.
The utility model, described two IGBT induction heaters are arranged on the track of upset workbench both sides.
The utility model also is provided with the eddy-current heating head on the described IGBT induction heater.
The utility model, described first pushes away iron and second pushes away iron, and its planted agent's face is a semicircle, and planted agent's face is meant that two push away iron level and are oppositely arranged on corresponding end face on the upset workbench, semicircle and flange semicircle equal and opposite in direction can well be to the fixedly screens of flange semicircle.
The utility model, described upset workbench is made up of I-steel and pillar.
The utility model, described I-steel is provided with oil pressure cylinder, be meant that upset workbench below is provided with two I-steel side by side, the length of two I-steel is greater than the table top length of upset workbench, grows at two I-steel between the position of upset workbench and is provided with oil pressure cylinder.
Beneficial effect is:
Manufacturing equipment of the present utility model has the following advantages:
1, the upset workbench adopts I-steel to make support, not only bending resistance is good, also can conveniently reduce oil pressure cylinder and collude the shellfish height, reduce the moment of flexure that support bears significantly, simultaneously also make the eddy-current heating head end of IGBT induction heater stretch into the upset table axis as far as possible, but increased the abutted flange scope, the pressure range of compressive plane is at 40~70mpa on the upset workbench, guarantee that the upset face is stressed even, make the workpiece end plastic deformation, increase contact area at the interface, oxide-film on the broken end face, and contact-making surface periphery defective together extruded, promote crystallization regeneration, make junction intensity, the same sheet material of performance.
2, lack heat time heating time, speed is fast, power saving, temperature control; Be equipped with the guide rail usability and answer heating head easily to enter, withdraw from, easy to use; Do not use wlding, solder flux, the faying face Material Strength can be with sheet material itself, and easier is customer acceptance, more favourable to opening up markets, and more superior is to carry out the butt joint of aluminium flange, expands production range greatly, increases the benefit.
3, evenly be heated to simultaneously the temperature of upset for four upset faces that make two semicircles of flange, to take two IGBT medium frequency induction heaters simultaneously, mounting plane eddy-current heating head is with the heating of certain frequency advance and retreat, with the control temperature and the upset degree of depth, the scheme that the utility model is taked is that firing equipment is placed on the trailer, it is moved back and forth along track, firing equipment is except adopting the IGBT medium frequency induction heater, also can take other butt joint heater, concentrate as adopting heat, fusion penetration is big, speed is fast, be out of shape little, the cracking resistance line, no slag, observability is good, low and the high CO of work efficiency of welding cost 2Gas shielded arc welding cooperates the upset equipment flange that also can be mass-produced.
The utility model is a novel upset equipment during a kind of flange is manufactured; be used in combination with the upset flange fabrication technology; neither need forging equipment; need not roll equipment yet; only need a single cylinder portal frame molding press; upset equipment and supporting loose tool; just can produce the ring-type steel flange of various different size sizes; the aluminium flange; make that the input of upset flange manufacturing equipment and the consumption of the energy are part to tens/one of conventional production equipment; cost savings are more than 30%; production efficiency has improved several times; the flange quality of producing is also guaranteed and is improved; adopt upset equipment to the diathermanous upset of flange semicircle; guarantee the seamless welding of interface, promoted upset face crystallization regeneration, make junction intensity be equal to advantages such as sheet material.
With the matching used molding press of the utility model; form by die plate insert base and oil pressure cylinder I; die plate insert is arranged in the die plate insert base of portal frame; die plate insert be provided with anti-turn round wall and be one fixedly connected; the punch pressure head is connected with oil pressure cylinder I by connecting rod, when producing different size specification flange like this, only needs to change die plate insert and punch pressure head and just can carry out the flange semicircle and suppresses; and change simple to operately, it has the following advantages in production application:
1, annular flange generally all possesses good bendability, need not heat, clod wash just can reach the moulding requirement, rebound after eliminating clod wash, the molding press that the utility model adopts is that die plate insert and punch pressure head all are designed to pressure head fetalism formula, and loose tool radius of curvature and flange blank radius of curvature are matched, divide for several times molded, such version has following advantage: the one, and tyre mould making is convenient, handling ease, cost is low; The 2nd, each die mould punch ram travel is short, has improved efficient; The 3rd, easy to operate, the 4th, easily flange blank is observed, measured; The 5th, very convenient cushioning is adjusted the semicircle radian and is reached production requirement, so not only reduced equipment to the loose tool required precision, also improved die life, in order to reduce cost, shorten the Mold Making time, the flange that runs into new spec in practice only need be changed die plate insert and punch pressure head, and die plate insert base and coupling part are general part entirely, thus save to forge flange instrument, be convenient to flange and produce fast.
2, billot when being pressed into the flange semicircle for preventing semicircle distortion, be provided with the anti-wall of turning round on the die plate insert, prevent that turning round wall is to be wholely set with die plate insert, the anti-wall of turning round is made up of two long two short four baffle plates, and be symmetricly set on the avris of die plate insert, wherein two long baffle plates have the circular arc concave surface, the flange that pushes is played the effect that prevents to twist thickening, the anti-lateral extent of turning round within the walls is than the big 1-1.5 millimeter of flange billot thickness (distance of flange top and bottom is a thickness), the height at its circular arc concave surface place also only is flange width (distance of flange inside and outside circle is a width) 0.5-0.7, billot when extruding is crooked in circle can the compression thickening, the cylindrical attenuation that can be stretched, the anti-wall of turning round is located at billot neutrality line place and can keeps former thickness of slab, in the hope of when suppressing the flange semicircle, reaching zero distortion target, the flange semicircle of moulding can carry out upset without leveling like this, is convenient to the direct upset butt joint of flange semicircle.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is the structural representation of molding press in the utility model;
Mark is among the figure: 1, upset workbench, and 2, the IGBT induction heater, 3, first pushes away iron, and 4, second pushes away iron, 5, oil pressure cylinder, 6, depression bar, 7, gim peg, 8, track, 9, eddy-current heating head, 10, pillar, 11, I-steel, 12, collude shellfish, 13, holder car, 14, buting iron, 15, the flange semicircle, 16, the punch pressure head, 17, die plate insert, 18, the anti-wall of turning round, 19, connecting rod, 20, portal frame, 21, oil pressure cylinder I, 22, the die plate insert base.
The specific embodiment
As Fig. 1, the manufacturing equipment of upset flange shown in Figure 2, form by upset workbench 1 and IGBT induction heating apparatus, upset workbench 1 below is provided with pillar 10 and two I-steel 11 (length of two I-steel is greater than the table top length of upset workbench), being arranged with first on upset workbench 1 pushes away iron 3 and second and pushes away iron 4, first to push away planted agent's face that iron 3 and second pushes away iron 4 be semicircle, between the two, be symmetrical arranged two flange semicircles 15, can well place mounting flange semicircle 15, first pushes away iron 3 fixedlys connected with an end of upset workbench 1, also be provided with a buting iron 14 in first rear end that pushes away iron 3, first pushes away iron 3 oil cylinder 5 thrusts that are stressed and moves when being used for preventing upset, improve flange semicircle merging precision and efficient thereby be beneficial to, second pushes away iron 4 is horizontally set on the other end of upset workbench 1 and is connected with oil pressure cylinder 5 through colluding shellfish 12, grow at two I-steel 11 between the position of upset workbench 1 and be provided with oil pressure cylinder 5 (as shown in Figure 2), can well realize the fixing of oil pressure cylinder 5 like this, on upset workbench 1, also be arranged with two depression bars 6, two depression bars 6 are connected upset workbench 1 by two groups of gim pegs 7, play anti-arch role at the abutted flange semicircle; The IGBT induction heating apparatus is made of two IGBT induction heaters 2, two IGBT induction heater 2 correspondences are arranged on the trailer 13 of upset workbench 1 left and right sides track 8, track 8 is arranged on the center line both sides of upset workbench 1, guaranteed that eddy-current heating head 9 on the IGBT induction heater 2 is arranged on first and pushes away iron 3 and second and push away on the center line of iron 4 planted agent's faces, made the diathermanous more even of 9 pairs of flange semicircles of eddy-current heating head.
Molding press as shown in Figure 3; in the die plate insert base 22 of portal frame 20, be provided with die plate insert 17; the anti-wall 18 of turning round is arranged on the die plate insert 17 and is one and connects; the anti-middle part of turning round wall 18 upper surfaces is provided with circular arc; the flange billot is put into die plate insert 17 and is turned round wall 18 screens and fix by anti-; the anti-top correspondence of turning round wall 18 is provided with punch pressure head 16; punch pressure head 16 is connected with oil pressure cylinder I 21 on the portal frame 20 by connecting rod 19; can dwindle the stroke of punch pressure head 16 like this; improve pressing mold efficient; die plate insert 17 all is designed to pressure head fetalism formula with punch pressure head 16, and loose tool radius of curvature and flange blank radius of curvature are matched.
The manufacture craft that the utility model is adopted aborning is:
The upset flange fabrication technology, the flange metal billot that will make in advance with molding press is pressed into semicircle, adopts evenly four end faces of two semicircles of heating of IGBT induction heating apparatus again, after the extruding of upset equipment two semicircles is connected fast, and processing step is as follows:
Step 1, choose metal material by production requirement, the material that will meet production requirement cuts into corresponding width and length, makes flange metal billot;
Step 2, flange metal billot is placed in the mould of molding press, adopts the segmentation extruding, the prepressed method Rankine belongs to the two ends of billot, and the platen press Rankine belongs to the middle part of billot again, makes the flange semicircle;
Step 3, be as the criterion, the flange semicircle of press forming is revised, cut, back cleaning, rust cleaning with standard component;
Step 4, revised flange semicircle is inserted in the upset equipment, the back, location is adopted evenly four end faces of two semicircles of heating of IGBT induction heating apparatus earlier, the frequency of induction heater with 60 times/minute moved back and forth, heating-up temperature: 500 ℃-1300 ℃, after induction heater was withdrawn from, upset equipment pushed four end faces of two semicircles in being heated rapidly, and the pressure of compressive plane is 40-70Mpa, extrusion time: 1-5 minute, make product.
Adopt this explained hereafter flange to carry out and produce preparation, the compacting semicircle adds the work of hot heading butt joint three phases, and this technological operation is simple, and the production efficiency height uses in conjunction with homemade molding press and upset equipment, can reach the optimal effectiveness that flange is produced.
Produce the preparatory stage:
1, grasps the ratio that needs are produced the material of flange, kind, specification, flange Internal and external cycle diameter, judge and whether can carry out the clod wash die mould, judge the factors such as attenuation amount of outer ring bending, select the thickness of used steel plate, determine the blanking width and the length of the processing capacity and the flange blank of Internal and external cycle, determine the upset amount when the two ends straight flange was with butt joint when length will be considered to suppress the flange semicircle.The selection standard is with reference to as follows:
δ flange thickness of slab=δ flange is thick only+two-sided allowance
The K flange is wide=K flange clear span+inside and outside circle allowance
L flange semicircle length=π φ center circle+upset amount+straight section (100mm)
2, definite thickness of slab and the anti-regulation of turning round wall of making and settlement of basis made die plate insert and punch pressure head, and its radian equals outside the flange blank R respectively and in the R, why leaves allowance, is because of can all adopting gas cutting to get final product, need not processing on lathe again.
3, can to carry out upset to the flange in the certain size scope diathermanous for the upset workbench, can manufacture auxiliary pad on the iron pushing away in the time of the small size flange of upset.
The compacting of flange semicircle:
Divide equally three sections after flange metal billot removed two ends straight flange reserved part, and make every section center, press two ends during compacting earlier, the middle part is pressed in the back, and model is measured, but (radian was not little in the cushioning adjustment when radian conformed to model, pad is put flange inner arc two ends, and radian is big, and pad is put the die two ends, the upper and lower mould extruding can be adjusted flexibility).
Flange hot pressing butt joint:
The upset workbench is provided with two depression bars, depression bar is pressed on the upset workbench by four gim pegs (the preferred rectangular bolt of gim peg uses), upwards arch upward in the time of can preventing the stressed crimping of flange, guarantee that interface is stressed evenly, when after end face of flange is heated, docking, can inside and outside flange docks end face, place circular steel plate in both sides, improve the moulding quality of flange butt joint.
Embodiment one
The upset flange fabrication technology, the steel flange billot that will make in advance with molding press is pressed into semicircle, adopts evenly four end faces of two semicircles of heating of IGBT induction heating apparatus again, after the extruding of upset equipment two semicircles is connected fast, and processing step is as follows:
Step 1, choose the steel material by production requirement producing the preparatory stage, the steel material gas cutting that will meet production requirement becomes corresponding width and length, makes steel flange billot (billot leaves allowance);
Step 2, the steel flange billot is placed in the die plate insert of molding press, and, adopt the segmentation extruding then, the two ends of first compressed steel flange billot by the anti-position of adjusting steel flange of turning round wall on the die plate insert, the steel flange semicircle is made at the middle part of compressed steel flange billot again;
Step 3, be as the criterion, the steel flange semicircle (mainly being the allowance to reserving) of press forming is revised, cut, back cleaning, rust cleaning with standard component;
Step 4, revised steel flange semicircle is inserted on the upset workbench of upset equipment, after pushing away iron and depression bar location, adopt evenly four end faces of two semicircles of heating of IGBT intermediate frequency induction heating device, the frequency of eddy-current heating head with 60 times/minute moved back and forth, steel flange semicircle heating-up temperature to 1250 ℃, the eddy-current heating head is withdrawn from fast, oil pressure cylinder promotes second and pushes away four end faces that iron pushes latter two semicircle that is heated rapidly, the pressure of compressive plane is 70Mpa, pushed 5 minutes, and made the steel flange product.
Embodiment two
The upset flange fabrication technology, the aluminium flange billot that will make in advance with molding press is pressed into semicircle, adopts evenly four end faces of two semicircles of heating of IGBT induction heating apparatus again, after the extruding of upset equipment two semicircles is connected fast, and processing step is as follows:
Step 1, choose aluminum by production requirement producing the preparatory stage, the aluminum that will meet production requirement adopts gas cutting to cut into corresponding width and length, makes aluminium flange billot;
Step 2, aluminium flange billot is placed in the die plate insert of molding press, adopts the segmentation extruding, the two ends of first jewelling flange billot, aluminium flange semicircle is made at the middle part of jewelling flange billot again;
Step 3, be as the criterion, the aluminium flange semicircle of press forming is revised, cut, back cleaning, rust cleaning with standard component;
Step 4, revised aluminium flange semicircle is inserted on the upset workbench of upset equipment, after pushing away iron and depression bar location, adopt evenly four end faces of two semicircles of heating of IGBT intermediate frequency induction heating device, the frequency of eddy-current heating head with 60 times/minute moved back and forth, the aluminium flange is heated to 550 ℃, after the eddy-current heating head is withdrawn from, oil pressure cylinder promotes second and pushes away four end faces that iron pushes latter two semicircle that is heated rapidly, the pressure of compressive plane is 40Mpa, extrusion time: 3 minutes, realize the butt joint of aluminium flange semicircle, make product.
Embodiment three
The upset flange fabrication technology, the copper flange billot that will make in advance with molding press is pressed into semicircle, adopts evenly four end faces of two semicircles of heating of IGBT induction heating apparatus again, after the extruding of upset equipment two semicircles is connected fast, and processing step is as follows:
Step 1, choose copper product by production requirement producing the preparatory stage, the copper product that will meet production requirement adopts gas cutting to cut into corresponding width and length, makes copper flange billot;
Step 2, copper flange billot is placed in the die plate insert of molding press, adopts the segmentation extruding, press the two ends of copper flange billot earlier, press the middle part of copper flange billot again, make copper flange semicircle;
Step 3, be as the criterion, the copper flange semicircle of press forming is revised, cut, back cleaning, rust cleaning with standard component;
Step 4, revised copper flange semicircle is inserted on the upset workbench of upset equipment, after pushing away iron and depression bar location, adopt evenly four end faces of two semicircles of heating of IGBT intermediate frequency induction heating device, the frequency of eddy-current heating head with 60 times/minute moved back and forth, the copper flange is heated to 900 ℃, after the eddy-current heating head is withdrawn from, oil pressure cylinder promotes second and pushes away four end faces that iron pushes latter two semicircle that is heated rapidly, the pressure of compressive plane is 55Mpa, extrusion time: 4 minutes, make copper flange product.

Claims (6)

1. the manufacturing equipment of upset flange, it is characterized in that: form by upset workbench (1) and IGBT induction heating apparatus, being arranged with first on upset workbench (1) pushes away iron (3) and second and pushes away iron (4), first pushes away iron (3) fixedlys connected with an end of upset workbench (1), second pushes away iron (4) is horizontally set on the other end of upset workbench (1) and is connected with oil pressure cylinder (5) through colluding shellfish (12), on upset workbench (1), also be arranged with two groups of gim pegs (7) that connect depression bar (6), the IGBT induction heating apparatus is made of two IGBT induction heaters (2), and correspondence is arranged on the both sides of upset workbench (1).
2. the manufacturing equipment of upset flange as claimed in claim 1 is characterized in that: described two IGBT induction heaters (2) are arranged on the track (8) of upset workbench (1) both sides.
3. the manufacturing equipment of upset flange as claimed in claim 1 is characterized in that: also be provided with eddy-current heating head (9) on the described IGBT induction heater (2).
4. the manufacturing equipment of upset flange as claimed in claim 1 is characterized in that: described first pushes away iron (3) and second pushes away iron (4), and its planted agent's face is a semicircle.
5. the manufacturing equipment of upset flange as claimed in claim 1 is characterized in that: described upset workbench (1) is provided with pillar (10) and I-steel (11).
6. the manufacturing equipment of upset flange as claimed in claim 5 is characterized in that: described I-steel (11) is provided with oil pressure cylinder (5).
CN2010205111192U 2010-08-31 2010-08-31 Upsetting flange manufacturing device Expired - Fee Related CN201815624U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205111192U CN201815624U (en) 2010-08-31 2010-08-31 Upsetting flange manufacturing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205111192U CN201815624U (en) 2010-08-31 2010-08-31 Upsetting flange manufacturing device

Publications (1)

Publication Number Publication Date
CN201815624U true CN201815624U (en) 2011-05-04

Family

ID=43913595

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205111192U Expired - Fee Related CN201815624U (en) 2010-08-31 2010-08-31 Upsetting flange manufacturing device

Country Status (1)

Country Link
CN (1) CN201815624U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303082A (en) * 2011-08-31 2012-01-04 常州天旭机电制造有限公司 Hot rolling machine for vehicle wheel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303082A (en) * 2011-08-31 2012-01-04 常州天旭机电制造有限公司 Hot rolling machine for vehicle wheel

Similar Documents

Publication Publication Date Title
CN101961765B (en) Manufacturing process and equipment for upset forging of flanges
CN102672096A (en) Precision die forging and shaping technical method for automobile steering knuckle rough type parts
CN102581051B (en) Cold extrusion forming method for lute hole of axle housing of automobile drive axle and pressing die forming machine tool
CN101844291A (en) Molding method and mould of large nuclear-power spherical sealing head product
CN101758149B (en) Rotator shaft residual material-free obliquely and transversely rolling method and special mold
CN104907473A (en) Method for hot processing of large die flat steel forged piece
CN102744284A (en) High-pressure elbow pipe billet heat-pushing temperature pressure shaping method
CN103286158A (en) Method and device for preparing variable-thickness longitudinal laser welded pipe in two-step forming way
CN102152124A (en) Process for manufacturing outer rim for wheel type tubeless engineering machinery wheel
CN101254514A (en) Vehicle bridge shell semi-housing mold method and special forming mold
CN103230955A (en) Hot extrusion forming die of light alloy horn-shaped pipe fitting
CN100493821C (en) Manufacturing method of the coupler yoke for railway wagon
CN104551545B (en) The strain-induced formula semisolid state forming device of a kind of fine grained texture bearing shell and technique
CN106180257B (en) Large plate list weld seam threeway forming process and forming device
CN103706744A (en) Petroleum drill rod joint horizontal die forging technology and die forging device
CN103567246B (en) The extrusion molding apparatus of crankshaft used for large boat crank throw and manufacturing process
CN101596572B (en) Technological method for producing axle case reinforcing ring
CN201815624U (en) Upsetting flange manufacturing device
CN202571117U (en) Steel tie rod end forming equipment
CN208555690U (en) A kind of disjunctor shaping dies
CN101716616A (en) Method for producing seamless steel tube by combination of drawing and expanding and device thereof
CN202045311U (en) Continuous heading device for long bar stock of brake pull bar of railway freight car
CN103230951A (en) Hot extrusion forming method of light alloy horn-shaped pipe fitting
CN109014010B (en) Extrusion forming device and method for crank forging of marine low-speed diesel engine
CN110125301A (en) The dedicated forge die of cylinder barrel and forging method in a kind of coal mine hydraulic supporting

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110504

Termination date: 20130831