CN103506754B - Die applied to jointed process of metal strips used in through ground wires - Google Patents
Die applied to jointed process of metal strips used in through ground wires Download PDFInfo
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- CN103506754B CN103506754B CN201310334033.5A CN201310334033A CN103506754B CN 103506754 B CN103506754 B CN 103506754B CN 201310334033 A CN201310334033 A CN 201310334033A CN 103506754 B CN103506754 B CN 103506754B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
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Abstract
In the prior art, the joining mode for metal strips used for through ground wires comprises an electric resistance welding mode or an argon arc welding mode, the welding joints are incomplete and concave, gaps exist in the edges of the welding joints, so that the jointed positions of the obtained jointed metal strips are insufficient in tensile strength. The invention provides a die applied to a cold pressing joining process of the metal strips used for through ground wires. The die includes four movably connected modules which contact with each other under an external force and form a cavity in a center position. A rectangle hole is formed on the side edge for the metal strips crossing and for clamping the metal strips. The four modules respectively separate from each other under the action of itself spring after the external force is moved. It is ensured that not only the die has enough clamping force to the metal strips in a cold pressing welding process, but also a metal joined end has enough moulding deformation amount, thereby ensuring the joining of the metal strips is successfully achieved by using the cold pressing welding mode.
Description
Technical field
The present invention relates to a kind of mould of the processing processing procedure for sheet metal strip, specifically a kind of mould being applied in Through ground wire sheet metal strip handshaking procedure used.
Background technology
In the construction of high-speed railway, require to lay Through ground wire along trunk railway total length, ensure to realize equipotential link between each systems such as communication, signal, electric power, traction, power supply and equipment, eliminate the electromagnetic interference caused owing to there is potential difference between distinct device and system and the potential safety hazard that the person and equipment are caused, guarantee system equipment security of operation, stable, reliable.
The sheath material of the Through ground wire used at present is brass alloys band, and the production length of this brass alloys band in actual production process is generally at about 600 meters, and the production length of the alloy ground wire used is generally at 2000 meters or about 3000 meters.
In order to make brass band and alloy ground wire adapt, must continue to brass band and meeting production and application requirement.The continuation method of current employing, is mainly electric resistance welding or argon arc welding two kinds of modes.These two kinds of modes all can not ensure connecting quality, and it is mainly manifested in, and weld seam is imperfect, weld seam has depression and weld edge is jagged.Therefore, when carrying out vertical bag distortion to the brass alloys band after continuing, in the weldering and process of vertical packet interface, easily there is hole in the junction of brass alloys band, and then in tube reducing drawing process, due to the existence of this place's hole, make mechanical strength little, easy fracture.In addition, adopt the continuation method of electric resistance welding or argon arc welding, the time used of often continuing once at least wants 40 minutes, seriously reduces production efficiency.
Summary of the invention
For solving the technical problem of above-mentioned existence, the object of the present invention is to provide a kind of mould being applied in Through ground wire sheet metal strip handshaking procedure used.Carry out Cold welding by using this mould to metal tape to continue, obtain continue after the intensity of the place's part that continues of metal tape substantially equal with the intensity of mother metal; Joint except having unnecessary burr projection, situation about be not out of shape, being corroded; Resistance and the electric conductivity of joint also do not change compared with mother metal.
The present invention solves the technical scheme that its technical problem takes:
Be applied in a mould for Through ground wire sheet metal strip handshaking procedure used, comprise halfbody one and halfbody two, wherein halfbody one identical with the structure of halfbody two and both be arranged symmetrically with; Described halfbody one comprises upper left module and upper right module, halfbody two comprises lower-left module and bottom right module, and the structure of described upper left module, upper right module, lower-left module and bottom right module is identical, described upper left module and upper right module, described lower-left module and bottom right module are symmetrical arranged respectively; Described each module is provided with multiple major axis pin-and-hole of extending in left-right direction and multiple minor axis pin-and-hole extended along the vertical direction; Between described upper left module with upper right module, described lower-left module is flexibly connected respectively by major axis pin with between the module of bottom right, and on the outer cylinder of major axis pin, suit plays the spring of rebound effect; Between described upper left module with lower-left module, described upper right module is flexibly connected respectively by stub axle pin with between the module of bottom right, and on the outer cylinder of stub axle pin, suit plays the spring of rebound effect.
The each module end face of forward surface being positioned at described halfbody one and described halfbody two is provided with the U-shaped groove that left and right directions extends, and the grooved bottom surface of described U-shaped groove is plane; The groove in another composition face extending to each turning is respectively equipped with at the right flank of the lower right corner of described upper left module, the left surface of described upper right module lower-left corner, the right flank of the right upper corner of described lower-left module and the left surface of described bottom right module upper left corner.
By each block combiner together and when making them contact with each other separately: it is a rectangular through-hole that the U-shaped groove in described upper left module coordinates with the U-shaped groove in the module of described lower-left, it is a rectangular through-hole that U-shaped groove in described upper right module also coordinates with the U-shaped groove in the module of described bottom right, and the central axis of two rectangular openings point-blank overlaps; The groove combination of described each corner becomes a cavity penetrating in the vertical direction; The upper surface of described halfbody one, the lower surface of described halfbody two are all the V-type face of plane in blind end;
Also comprise the module actuating member that two structures are identical, the medial surface of described module actuating member is provided with V-type groove and the bottom land of this V-type groove is plane;
The V-type groove of two described module actuating members coordinates with the upper surface of described halfbody one or the lower surface of described halfbody two respectively, and the bevel inclination angle of described upper surface and described lower surface is consistent with the angle of inclination of the inclined trough surface of corresponding V-type groove.
Further, at each block combiner together and when contacting with each other separately, the Kong Gaowei 1mm of the rectangular through-hole that the U-shaped groove in the rectangular through-hole that the U-shaped groove in the U-shaped groove in described upper left module and described lower-left module fits in and described upper right module and the U-shaped groove in the module of described bottom right fit in, hole width is between 10mm to 50mm.
Subsequent process, is characterized in that this technique comprises the following steps:
Before a, welding, cleannes and smoothness process are carried out to the joint to be welded of sheet metal strip;
B, section according to different metal band, select welding equipment, by cold press welder model and supporting weld mold determination welding pressure;
C, weld mold is inserted in the termination to be welded of sheet metal strip, require that the joint of the sheet metal strip of butt welding stretches into the center of mold cavity, and these two joints to be continued that align;
D, press the pressure handle of welding machine gently, whether align with leveling metal strip material and analyzing adapter, and pressure handle is placed in extreme higher position;
E, press pressure handle, namely exerted pressure continuously by highest position by pressure handle completes a top to least significant end and welds, and number of times of exerting pressure is 3 to 5 times, and the welding pressure guaranteeing to weld latter stage is greater than the welding pressure at welding initial stage;
F, the sheet metal strip after welding to be taken out from mould, and remove the burr of sheet metal strip joint;
G, the joint of sheet metal strip is fixed on annealing machine electrode above, and will anneal current settings at 30 to 100 amperes according to the lateral cross-sectional area of joint, annealing time is set as 3 to 10 seconds.
In step a, the cleannes of the joint to be welded of described sheet metal strip require to reach without oil film, room moisture film, without other organic impurities, its processing mode be chemical solvent cleaning or ultrasonic purification or to mechanically in the removing of wire brush, gauze/sand paper or file.
In step a, described smoothness requirements reaches Ra≤3.2 μm.
The pressure handle of cold press welder selected in step e by can produce >=electric hydraulic pump of 20 tons of crimp forces drives.
The invention has the beneficial effects as follows:
Cold pressing use this mould to obtain in subsequent process continue after the intensity of the place's part that continues of metal tape substantially equal with the intensity of mother metal; Joint except having unnecessary burr projection, situation about be not out of shape, being corroded; Resistance and the electric conductivity of joint also do not change compared with mother metal, meet instructions for use; In addition the cost that continues of this technique is low, and the complete connection time used is short, improves the economic benefit continued.
Accompanying drawing explanation
Fig. 1 is the sheet metal strip that the present invention relates to is arranged on cold press welder schematic diagram by mould;
Fig. 2 is the schematic diagram of each module under closed contact condition of mould in the present invention;
Fig. 3 is the schematic diagram of each module under discrete state of mould in the present invention;
Fig. 4 is the schematic diagram of the module actuating member of mould in the present invention;
Fig. 5 is that in Fig. 1, A is in enlarged diagram when not depressing pressure handle;
Fig. 6 is the enlarged diagram in Fig. 1 after the repeated multiple times pressure pressure handle in A place;
Fig. 7 be sheet metal strip mother metal, welding point place cross-sectional metallographic figure and welding after band deckle-edged metallographic analysis diagram
In figure: 1 mould, 11 halfbody one, 111 upper left module, 112 upper right modules, 113 upper surfaces, 12 halfbody two, 121 lower-left modules, 122 bottom right modules, 123 lower surfaces, 13U type groove, 14 cavitys, 15 major axis pins, 151 major axis pin-and-holes, 16 stub axle pin, 161 minor axis pin-and-holes, 17 springs, 2 sheet metal strips, 21 welding dregs, 3 cold press welders, 31 pressure handles, 32 module actuating members, 321V type groove.
Detailed description of the invention
For ease of understanding technology contents of the present invention further, below in conjunction with accompanying drawing, the invention will be further described.
It should be noted that; the noun of locality used when being described described mould is as "left", "right"; " on ", upper and lower all in accompanying drawing 3, accompanying drawing 5 or accompanying drawing 6 of D score; left and right orientation is corresponding; and the vertical direction used refers to the direction of the drawing perpendicular to accompanying drawing 3, accompanying drawing 5 or accompanying drawing 6; its objective is the convenient architectural feature of mould being explained, so protection domain can not be affected as the restriction on this body structure of mould.Mentioned sheet metal strip 2 refers to brass band, but and is not precluded within the metal beyond brass band or the use on alloy strip steel rolled stock.
As shown in Figures 2 to 6, a kind of mould being applied in Through ground wire sheet metal strip handshaking procedure used, it comprises halfbody 1 and halfbody 2 12, wherein halfbody 1 identical with the structure of halfbody 2 12 and both be arranged symmetrically with.Described halfbody 1 comprises upper left module 111 and upper right module 112, halfbody 2 12 comprises lower-left module 121 and bottom right module 122, and the structure of described upper left module 111, upper right module 112, lower-left module 121 and bottom right module 122 is identical, described upper left module 111 is symmetrical arranged with bottom right module 122 respectively with upper right module 112, described lower-left module 121.
Described each module (referring to upper left module 111, upper right module 112, lower-left module 121 and bottom right module 122) is provided with multiple major axis pin-and-hole 151 of extending in left-right direction and multiple minor axis pin-and-hole 161 extended along the vertical direction.
Described major axis pin-and-hole 151 is used for coordinating installs major axis pin 15, and described minor axis pin-and-hole 161 is used for coordinating installs stub axle pin 16; Described upper left module 111 has the major axis pin 15 of spring 17 to be flexibly connected with upper right module 112 by overlapping; Described lower-left module 121 has the major axis pin 15 of spring 17 to be flexibly connected with bottom right module 122 by overlapping; Described upper left module 111 has the stub axle pin 16 of spring 17 to be flexibly connected with lower-left module 121 by overlapping; Described upper right module 112 has the stub axle pin 16 of spring 17 to be flexibly connected with bottom right module 122 by overlapping; The spring 17 be sleeved in described major axis pin 15 and described stub axle pin 16 all plays rebound effect.
Be positioned at described halfbody 1 and halfbody 2 12 forward surface each module end face on be equipped with the U-shaped groove 13 that left and right directions extends, and the grooved bottom surface of described U-shaped groove 13 is plane.
The groove in another composition face extending to each turning is respectively equipped with at the right flank of the right flank of the lower right corner of described upper left module 111, the left surface of the lower-left corner of described upper right module 112, the right upper corner of described lower-left module 121 and the left surface of described bottom right module 122 upper left corner.
By each block combiner together and press make them contact with each other separately time:
It is a rectangular through-hole that U-shaped groove 13 in described upper left module 111 coordinates with the U-shaped groove 13 in described lower-left module 121, and it forms the jaw of the mould 1 described in above-mentioned technical process.
It is a rectangular through-hole that U-shaped groove 13 in described upper right module 112 also coordinates with the U-shaped groove 13 in described bottom right module 122, and similarly, it also forms the jaw of the mould 1 described in above-mentioned technical process; And the central axis of two rectangular through-hole point-blank overlaps.
Described each turning (namely refers to the lower right corner of described upper left module 111, the lower-left corner of described upper right module 112, the right upper corner of described lower-left module 121, described bottom right module 122 upper left corner) groove combination at place becomes a cavity 14 (this cavity 14 is the die cavity of mould 1) penetrating in the vertical direction, its effect is used to the length (namely sheet metal strip 2 stretches into the length of mold cavity) of the termination of continuing for ensureing the sheet metal strip 2 continued, to guarantee having enough plastic deformation amounts, this cavity 14 is also used for discharging the welding dregs 21 produced in Cold welding process.The upper surface 113 of described halfbody 1, the lower surface 123 of described halfbody 2 12 are the V-type face that blind end is plane.
At each block combiner together and when contacting with each other separately, the Kong Gaowei 1mm of the rectangular through-hole that the U-shaped groove in the rectangular through-hole that the U-shaped groove in the U-shaped groove in described upper left module 111 and described lower-left module 121 fits in and described upper right module 112 and the U-shaped groove in described bottom right module 122 fit in, hole width is between 10mm to 50mm.
Because caused by processing technology, in the upper right corner of described upper left module 111, the upper left corner of described upper right module, the lower right corner of described lower-left module and the lower left corner of described bottom right module is respectively equipped with fillet, so the center of the median surface of the above-mentioned upper surface 113 of V-shaped formed and lower surface 123 has a little groove, it does not form the restriction to the V-type face being plane of looking as blind end in described upper surface 113 and described lower surface 123 main body.
Described mould 1 also comprises the identical module actuating member 32 of two structures, and as shown in Figure 4, the medial surface of described module actuating member 32 is provided with V-type groove 321 and the bottom land of this V-type groove 321 is plane.
As shown in Figure 5 and Figure 6, the V-type groove of two described module actuating members 32 matches with the upper surface 113 of described halfbody 1 or the lower surface 123 of described halfbody 2 12 respectively, and the angle of inclination forming the inclined plane of described upper surface 113 or described lower surface 123 is consistent with the angle of inclination of the inclined trough surface of described V-type groove 321.
During use, as shown in Fig. 1 and Fig. 5, Fig. 6:
First module actuating member 32 is arranged on cold press welder 3, each block combiner is arranged on afterwards the V-type slot fit with described module actuating member 32 on cold press welder 3 simultaneously together; Then to be continued two sheet metal strips 2 are penetrated by the notch of the notch of the U-shaped groove 13 of left end and the U-shaped groove 13 of right-hand member respectively, and guarantee described two sheet metal strips 2 treat that continued access end is positioned at the center of described mould 1; Now, owing to being sleeved on the effect of the spring 17 in major axis pin 15 and stub axle pin 16, described each module is each other from the not contact of, each mating surface.
Press the pressure handle 31 (namely acting on welding pressure) of described cold press welder 3 downwards, welding pressure reaches each module by described module actuating member 32, make to be moved up and down by upper left module 111 halfbody 2 12 be made up of lower-left module 121 and bottom right module 122 relative to the halfbody 1 that upper right module 112 forms, and then the sheet metal strip 2 penetrating described U-shaped groove 13 is clamped; Meanwhile, also to make respectively between upper left module 111 with upper right module 112, relatively between lower-left module 121 and bottom right module 122 to move left and right, and then drive corresponding sheet metal strip 2 or be moved to the left (even if the joint of sheet metal strip is in opposite directions by middle mobile) respectively to the right, bidirectional pressing makes the joint of sheet metal strip complete Cold welding by friction and Extrusion, is pressed together the end of two sheet metal strips 2.
After removing welding pressure, under the effect being set in the spring 17 in major axis pin 15 and stub axle pin 16, described each module disengages each other.
Described mould is applied in the subsequent process of Through ground wire sheet metal strip handshaking procedure used:
Before this technique comprises welding, cleannes and smoothness process are carried out to the joint to be welded of sheet metal strip 2.
The cleannes of the joint to be welded of described sheet metal strip 2 require to reach without oil film, without moisture film, without other organic impurities, if deposit these materials, must remove before welding; Sweep-out method can select chemical method or physics mode, as with chemical solvent cleaning or use ultrasonic purification or to mechanically in wire brush, gauze/sand paper or file removing etc.
Joint surface after having cleared up does not allow to there is remaining residue or oxide-film powder, and the surface after cleaning bans the use of hand and touches and pollute, and termination to be welded should welding as early as possible once cleaning.Described smoothness requirements reaches Ra≤3.2 μm.
In welding process, plastic deformation degree is the minimum amount of plastic deformation realized needed for Cold welding, become " deformation extent ", it is the key parameter controlling welding quality, and during extruding, metal interface must have enough plastic flow momentum could obtain high-quality joint.
Plastic deformation is required to meet the oxide layer being destroyed interface by sizable deflection, makes oxide layer and other impurity extrude combination interface; Being overcome the unevenness at interface by plastic deformation, is the close contact that the soldered surface cleaned reaches atomic distance, forms intergranular and engages.
In welding process, the welding pressure of applying is external energy unique in Cold welding process.It is delivered to position to be welded by mould 1, makes soldered position produce plastic deformation.Different energy is imposed, generally much larger than the welding pressure at welding initial stage of the welding pressure of welding needed for latter stage according to the cross-sectional area of different metal band 2.This pressure is sheet metal strip 2 and welds required energy, and this energy is transmitted by weld mold (i.e. mould 1).Therefore, the project organization of mould 1, size are very large on the impact of the pressure of welding, and this is concerning most important the designer of Cold welding, and it directly affects the success or not of welding.But for the user, as long as cold press welder is selected appropriate, the matching die 1 also just sizing of use, as long as pressure is enough abundant, can realize welding, itself and operative skill are without large relation.
Therefore, the sheet metal strip 2 of corresponding varying cross-section (i.e. section) selects the cold press welder 3 of different model most important.
As Fig. 1, Fig. 5 or Fig. 6 by the two ends to be welded of two strip metal bands 2 respectively from left to right or right-to-left insert weld mold (i.e. mould 1), require that two joints of two strip metal bands 2 of butt welding are each passed through the jaw on the mould corresponding with it and stretch into the center of mould 1 die cavity, and these two joints to be continued that align; Guarantee positioning precision, make the chucking power of jaw to sheet metal strip 2 reach best, avoid band, in extruding welding process, skidding occurs and cause welding unsuccessfully.
The welding pressure in welding latter stage is greater than the problem of the welding pressure at welding initial stage, and hydraulic Cold welding ensures by program, and the electric hydraulic pump of hydraulic cold press welder preferably guarantees to produce the crimp force of >=20 tons, and this crimp force acts on pressure handle 31; The position control of type hand pressure armrest handle, handle position reaches end of travel, and pressure reaches maximum.
Simultaneously according to sheet metal strip 2 cross-sectional area, guarantee the length stretching into mould 1 die cavity.The length that sheet metal strip 2 stretches into mould 1 die cavity must ensure, makes faying face place metal plastic flowing quantity not sufficient, cause bond strength inadequate if too short; If oversize, sheet metal strip 2 will be caused to bend, cause and weld unsuccessfully.
Press pressure handle 31, pressure handle 31 is exerted pressure continuously by highest position and namely completes top to least significant end and weld, the empirical value of number of times of exerting pressure is 3 to 5 times, if number of times is less than 3 times, weld the intergranular engaging force caused less than normal, easily rupture at this place in follow-up drawing or use procedure, cause burr too many if be greater than 5 meetings, waste raw material.Sheet metal strip 2 after welding is taken out from mould 1, and removes the burr of sheet metal strip 2 joint;
Finally, above the electrode joint of sheet metal strip 2 being fixed on annealing machine, and according to lateral cross section (i.e. section) area of joint by a certain value of annealing current settings between 30 to 100 amperes, annealing time is set as 3 to 10 seconds.
Adopt above-mentioned technique to complete once to continue the time used to be no more than three minutes, improve efficiency.
As shown in Figure 7, wherein (a) is the metallograph of the cross section of brass band mother metal, b () is the metallograph of the cross section of the welding point after welding procedure process, by (a) and (b) can find out that subsequent process of taking to cold pressing obtains continue after the intensity of the part that continues of metal tape substantially equal with the intensity of mother metal; C () is the deckle-edged metallographic analysis diagram of band after welding, the situation can find out joint except having unnecessary burr projection by this figure, not be out of shape, being corroded; .
Table one is the mechanical and physical performance table of comparisons of the front and back brass band that continues:
Table one
| Sequence number | Project | Unit | Technical requirement | Brass band mother metal | Continue place's joint |
| 1 | Specific insulation 20 DEG C | Ω·mm 2/m | 0.09 | 0.07 | 0.07 |
| 2 | Tensile strength | Mpa | 260 | 380 | 390 |
| 3 | Elongation at break | ％ | 25 | 38 | 33 |
The data of table one illustrate that the resistance of joint and electric conductivity also do not change compared with mother metal, and hot strength and percentage of elongation all meet instructions for use.
Claims (2)
1. be applied in a mould for Through ground wire sheet metal strip handshaking procedure used, it is characterized in that:
Comprise halfbody one and halfbody two, wherein halfbody one identical with the structure of halfbody two and both be arranged symmetrically with;
Described halfbody one comprises upper left module and upper right module, halfbody two comprises lower-left module and bottom right module, and the structure of described upper left module, upper right module, lower-left module and bottom right module is identical, described upper left module and upper right module, described lower-left module and bottom right module are symmetrical arranged respectively;
Described each module is provided with multiple major axis pin-and-hole of extending in left-right direction and multiple minor axis pin-and-hole extended along the vertical direction;
Between described upper left module with upper right module, described lower-left module is flexibly connected respectively by major axis pin with between the module of bottom right, and on the outer cylinder of major axis pin, suit plays the spring of rebound effect;
Between described upper left module with lower-left module, described upper right module is flexibly connected respectively by stub axle pin with between the module of bottom right, and on the outer cylinder of stub axle pin, suit plays the spring of rebound effect;
The each module end face of forward surface being positioned at described halfbody one and described halfbody two is provided with the U-shaped groove that left and right directions extends, and the grooved bottom surface of described U-shaped groove is plane;
The groove in another composition face extending to each turning is respectively equipped with at the right flank of the lower right corner of described upper left module, the left surface of described upper right module lower-left corner, the right flank of the right upper corner of described lower-left module and the left surface of described bottom right module upper left corner;
By each block combiner together and when making them contact with each other separately
It is a rectangular through-hole that U-shaped groove in described upper left module coordinates with the U-shaped groove in the module of described lower-left, it is a rectangular through-hole that U-shaped groove in described upper right module also coordinates with the U-shaped groove in the module of described bottom right, and the central axis of two rectangular openings point-blank overlaps;
The groove combination of described each corner becomes a cavity penetrating in the vertical direction;
The upper surface of described halfbody one, the lower surface of described halfbody two are all the V-type face of plane in blind end;
Also comprise the module actuating member that two structures are identical, the medial surface of described module actuating member is provided with V-type groove and the bottom land of this V-type groove is plane;
The V-type groove of two described module actuating members coordinates with the upper surface of described halfbody one or the lower surface of described halfbody two respectively, and the bevel inclination angle of described upper surface and described lower surface is consistent with the angle of inclination of the inclined trough surface of corresponding V-type groove.
2. the mould being applied in Through ground wire sheet metal strip handshaking procedure used according to claim 1, it is characterized in that: each block combiner together and contact with each other separately time, the Kong Gaowei 1mm of the rectangular through-hole that the U-shaped groove in the rectangular through-hole that the U-shaped groove in the U-shaped groove in described upper left module and described lower-left module fits in and described upper right module and the U-shaped groove in the module of described bottom right fit in, hole width is between 10mm to 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334033.5A CN103506754B (en) | 2013-08-02 | 2013-08-02 | Die applied to jointed process of metal strips used in through ground wires |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310334033.5A CN103506754B (en) | 2013-08-02 | 2013-08-02 | Die applied to jointed process of metal strips used in through ground wires |
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| CN103506754A CN103506754A (en) | 2014-01-15 |
| CN103506754B true CN103506754B (en) | 2015-03-25 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110548981A (en) * | 2018-06-01 | 2019-12-10 | 镇江龙源铝业有限公司 | method for connecting ultra-narrow aluminum strips by cold-pressing welding |
| CN111940597A (en) * | 2020-07-04 | 2020-11-17 | 淮南巧天机械设备技术有限公司 | Splicing type stamping die |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060163321A1 (en) * | 2003-06-02 | 2006-07-27 | Yasushi Hasegawa | Liquid phase diffusion welding method for metallic machine part and metallic machine part |
| CN102315013A (en) * | 2011-05-27 | 2012-01-11 | 辽宁欣泰股份有限公司 | Foil-type coiling machine with cold pressure welding device |
| CN102686756A (en) * | 2009-10-23 | 2012-09-19 | 挪威钛组件公司 | Method for production of titanium welding wire |
| CN203426616U (en) * | 2013-08-02 | 2014-02-12 | 济南瑞通铁路电务有限责任公司 | Die applied to cold-pressing splicing process of metal strip used for run-through grounding line |
-
2013
- 2013-08-02 CN CN201310334033.5A patent/CN103506754B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060163321A1 (en) * | 2003-06-02 | 2006-07-27 | Yasushi Hasegawa | Liquid phase diffusion welding method for metallic machine part and metallic machine part |
| CN102686756A (en) * | 2009-10-23 | 2012-09-19 | 挪威钛组件公司 | Method for production of titanium welding wire |
| CN102315013A (en) * | 2011-05-27 | 2012-01-11 | 辽宁欣泰股份有限公司 | Foil-type coiling machine with cold pressure welding device |
| CN203426616U (en) * | 2013-08-02 | 2014-02-12 | 济南瑞通铁路电务有限责任公司 | Die applied to cold-pressing splicing process of metal strip used for run-through grounding line |
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| CN103506754A (en) | 2014-01-15 |
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