CN101972889B - Cold-pressure welding process for deformed zinc aluminum alloy rods - Google Patents
Cold-pressure welding process for deformed zinc aluminum alloy rods Download PDFInfo
- Publication number
- CN101972889B CN101972889B CN 201010504841 CN201010504841A CN101972889B CN 101972889 B CN101972889 B CN 101972889B CN 201010504841 CN201010504841 CN 201010504841 CN 201010504841 A CN201010504841 A CN 201010504841A CN 101972889 B CN101972889 B CN 101972889B
- Authority
- CN
- China
- Prior art keywords
- welding
- wire rod
- pressure
- wire
- aluminum alloy
- 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
Links
Images
Abstract
The invention discloses a cold-pressure welding process for wrought allumen wire rods. The process comprises the following steps of: repeatedly annealing and drawing the wrought allumen wire rods into the wire rods with the diameter d of less than or equal to phi 15mm; cleaning and smoothening a surface to be welded; selecting welding equipment according to the diameter of a cross section of the wire rods; placing the wire rods into a welding die, wherein the length of the wire rods to be butt welded is required to be more than or equal to that of a jaw of the die, the wire rods are required to extend out of a die cavity by (0.8-1)d and connectors are required to be aligned; pressing the wire rods for 3 to 4 times under the condition of guaranteeing welding pressure at the end of welding is larger than that at the beginning of the welding; and taking the welded wire rods out of the die, and removing flashes on the connectors to obtain the wrought allumen wire rods. The cold-pressure welding process is energy-saving and eco-friendly; the welding quality is stable; the efficiency is high; and the cost is low.
Description
Technical field
The present invention relates to welding technology field, specifically is the Cold welding technology of the distortion Zinc-aluminum alloy wire of a kind of diameter d≤Φ 15mm.
Background technology
Distortion allumen (Zn-Al system) is to be directed against domestic and international in recent years cathode copper price to raise up continuously and the high a kind of novel alloy that causes copper products raw material manufacturer and copper product to lose the market competitiveness and research and develop.It can substitute part brass parts and be applied to fields such as automobile, household electrical appliances, bathroom, computer.
Zinc and kirsite can adopt methods such as electric resistance welding, gas welding and argon arc welding to weld, but use more still gas welding.Adopt neutral flame or slight carburizing flame during welding mostly.Must use brazing flux during the zinc gas welding, this is not merely and prevents oxidation, and is favourable to preventing the zinc evaporation yet.When containing kirsite, zinc casting gas welding or the repair welding of aluminium (Al), the solder flux of being selected for use should be similar with the aluminium gas flux.
Cold welding is under room temperature state, makes metal faying face to be welded place produce plastic deformation and realizes a kind of method of solid-state welding by axial compression power.It extrudes the impurity such as oxide-film on the connecting portion interface through plastic deformation, and pure metal is closely contacted, and reaches intergranular and combines.Feasible deformation velocity can not cause the intensification of joint in the cold welding process, does not have the phase counterdiffusion of interface atom yet, and cold welding can not produce the common softened zone of melting welding head, and the heat affected area is middle mutually with brittle metal.
The distortion allumen after 2005 because the advantage of price, the alternative HPb59 brass in some field and receive the favor of relevant manufacturer, but in the process that substitutes with in the raw material production process, all have requirement of welding.
The method that realizes the welding of allumen (Zn-Al system) wire rod generally speaking has: gas brazing, upset butt welding, argon tungsten-arc welding (TIG).
Gas brazing need be added brazing flux and solder, and brazing flux is mostly again to be the active reaction brazing flux, and postwelding needs in time residual brazing flux to be cleaned, otherwise butt welded seam causes corrosion easily, adopts neutral flame or slight carburizing flame during welding mostly.Need the operator to have rich experience to observe the temperature of wire rod, otherwise easily wire rod is burnt.
Need in the upset butt welding welding process according to different gauge or diameter of wire adjustment weld intervals, welding current, parameters such as upsetting force need the experience of operator's accumulating and enriching to mate three's relation.
Though the TIG weldering can realize the welding of allumen, generally be used for the welding of zinc alloy plate more.During welding, seldom uses in wire rod owing to striking inconvenience.
Chinese patent document CN1008242B name is called " evaporator of electric refrigerator is with copper-aluminum pipe cold welding technology ", and the technical scheme that it disclosed is that this technology is made up of weld parts processing, Cold welding, faying face thickening and four operations of weldment typing cleaning, and this welder needs backstay and plug components and parts; Copper pipe will be split into groove; Be not two-way exerting pressure during pressure welding, Yi Bian and be the clamp of fixing of deciding, another side is the moving clamp that transmits pressure; And welding object is different, is copper-aluminium welding.
Summary of the invention
The object of the present invention is to provide a kind of Cold welding technology of being out of shape Zinc-aluminum alloy wire, this technology satisfies the demand of the Cold welding of diameter d≤15mm Zinc-aluminum alloy wire through surface state, plastic deformation degree and the isoparametric coupling of welding pressure of workpiece interface to be welded.
The object of the invention is realized through following technical proposal:
A kind of Cold welding technology that is used to be out of shape Zinc-aluminum alloy wire is characterized in that this technology comprises the following steps:
A, will be out of shape Zinc-aluminum alloy wire on demand repeated annealing be drawn into diameter d≤Φ 15mm;
Welding surface, shear fracture to above-mentioned distortion Zinc-aluminum alloy wire before b, the weldering carry out cleannes and smoothness processing;
C, select welding equipments, confirm welding pressure by welding machine model and matching die according to different wire rod cross section diameters:
0.10mm～0.50mm diameter wire rod is selected J1 type cold welding machine for use;
0.30mm～1.20mm diameter wire rod is selected J2 type cold welding machine for use;
1.00mm～3.25mm diameter wire rod is selected J3 type cold welding machine for use;
2.00mm～8.00mm diameter wire rod is selected fluid pressure type J4 type cold welding machine for use;
4.00mm～15.00mm diameter wire rod is selected fluid pressure type J5 type cold welding machine for use;
7.00mm～15.00mm diameter wire rod is selected fluid pressure type J6 type cold welding machine for use;
D, will be out of shape Zinc-aluminum alloy wire and insert weld mold, the wire rod length that requires butt welding is more than or equal to mould jaw length, and stretches out mold cavity (0.8～1) d, and d is a gauge or diameter of wire, and the alignment joint;
E, press equipment upsetting force handle gently,, and pressure handle placed the extreme higher position with the alignment whether really of alignment wire rod and analyzing adapter;
F, press the upsetting force handle, pressure handle is exerted pressure by highest point continuously promptly accomplish a top welding to least significant end, the number of times of exerting pressure is 3～4 times, and the welding pressure that guarantees welding latter stage is greater than the initial welding pressure of welding;
G, the postwelding wire rod is taken out from mould, and remove the wire connections overlap.
In technique scheme, the cleannes of described welding surface require to reach no oil film, no moisture film, do not have other organic impurities, remove with certain sweep-out method.
Described sweep-out method comprises chemical solvent cleaning or ultrasonic purification or removes with the file in the mechanical means, wire brush, emery cloth or sand paper.
Described smoothness requires to reach Ra≤3.2 μ m.
Compared with prior art; The invention has the beneficial effects as follows: considered the specific (special) requirements of pressure and mould when cold welding designs owing to welding machine; The user only need select welding machine model and matching die, only requires during welding that the operator puts into mould with wire rod, and alignment can be implemented welding.The operator is not had any specification requirement, be very easy to production.
With respect to gas brazing and upset butt welding technology, the present invention makes strength of joint more than or equal to strength of parent under the situation that realizes same wire connections welding, and the drawing of follow-up wire rod can not ruptured in the joint in producing, and has improved production efficiency effectively.
Evidence: defectives such as the joint microstructure of this method welding does not exist and is mingled with, pore, deficiencies such as grain growth, intensity reduction can not take place to welding joint area formation softened zone and heat affected area in this technology.This technology is the production process of energy savings, non-environmental-pollution, welding quality stable, and productivity ratio is high, and cost is low.
Description of drawings
Fig. 1 is a cold welding upset pre-structure sketch map of the present invention.
Fig. 2 is structural representation behind the cold welding upset of the present invention.
Among the figure: 1,2-workpiece, 3-jaw, 4-left side anchor clamps, the right anchor clamps of 5-, 6-joint overlap.
The specific embodiment
A kind of Cold welding technology that is used to be out of shape Zinc-aluminum alloy wire, this technology comprise with the distortion Zinc-aluminum alloy wire on demand repeated annealing be drawn into diameter d≤Φ 15mm; Before the weldering wire rod welding surface, shear fracture are carried out cleannes and smoothness processing; The cleannes of said welding surface are that requirement wire surface to be welded must not exist oil film, moisture film and other organic impurities.If there are these materials, must remove before the weldering.Sweep-out method can be cleaned or the ultrasonic purification method with chemical solvent; Also available mechanical means is like file, wire brush, emery cloth, sand paper etc., but the surface after the cleaning does not allow to leave over residue or oxide-film break flour, and the surface after the cleaning also bans the use of hand and touches and pollute, and workpiece to be welded should weld once cleaning as early as possible.
Said surface flatness requires: in general very high to the roughness requirement of welding surface, require to reach Ra≤3.2 μ m.General surface through rolling, drawing or turning all can be used for cold welding; Have the uneven surface to be welded of small groove, in extrusion process, be unfavorable for the tangential displacement of whole interface, but be favourable welding process.
The plastic deformation degree of said welding process is to realize the required minimum amount of plastic deformation of Cold welding; Be called " deformation extent "; It is the key parameter of control welding quality, and interface metal must have enough plastic flow momentum could obtain high-quality joint during extruding.Plastic deformation will be satisfied the oxide layer of destroying the interface through sizable deflection, makes oxide layer and other impurity squeeze joint interface; Overcome the unevenness at interface through plastic deformation, make the tight contact of having cleaned that is reached atomic distance by the weldering surface, form intergranular and combine.
Said welding pressure is an external energy unique in the cold welding process.Pass to position to be welded through mould, make by the weldering metal and produce plastic deformation.Wire rod basal area according to different imposes different energy, welds big many of required welding pressure in the latter stage welding pressure more initial than welding generally speaking.This pressure is the required energy of wire rod welding, and this energy transmits through the Cold welding mould.The project organization size of weld mold is very big to the influence of welding pressure, and this designer to cold press welder is vital, and it directly influences the success or not of welding process.But concerning the user, as long as the typing of pressure welding equipment is produced, mould is just typing also, as long as pressure is enough abundant, can realizes welding, and not have big relation with operative skill.
Therefore, the cold welding machine of the cross section diameter of different wire rods selection different model is vital.By Fig. 1 wire rod 1 and 2 is inserted in corresponding weld mold 3,4 and 3,5 then; Require butt welding wire rod length more than or equal to mould jaw length; Guarantee that the location accurately; Make the chucking power of 3 pairs of wire rods of jaw 1,2 reach best, avoid the skidding that wire rod taken place and cause the welding failure in compressing process.
The welding pressure in welding latter stage is greater than the stress problems at welding initial stage, and the hydraulic cold welding machine leans on programme-control to guarantee, type hand pressure armrest handle Position Control, and handle position reaches end of travel, and pressure reaches maximum.
According to gauge or diameter of wire, guarantee to stretch out die cavity length and be (0.8～1) d simultaneously, d is a gauge or diameter of wire, and wire rod stretches out die cavity length and must guarantee, and is not enough like the too short faying face place plastic deformation amount of flow that makes, and causes bond strength not enough; As oversize, will cause bending wire, cause the welding failure.
The upset number of times is to guarantee welding quality and definite; Empirical data is 3～4 times, if number of times is less than 3 times, the intergranular adhesion of welding back institute moulding is less than normal; Be prone in follow-up drawing or the use in this place's fracture; If cause overlap too many greater than 4 meetings, the waste raw material stretch out die cavity length with wire rod and have nothing to do.At last by the wire connections overlap 6. that removes shown in Figure 2
Embodiment 1:
This instance is used to weld zinc-aluminium (Zn-Al) alloy wire of Φ 3mm.Wire rod is formed through the repeated annealing drawing by the hot extrusion wire rod of Φ 15mm, and joint form is butt joint.
With the two no oil films in surface, moisture film and other impurity; Section is a shear fracture; Length places J3 or the desk-top cold press welder mould of J4 type respectively more than or equal to the Φ 3mm Zinc-aluminum alloy wire of jaw length, about respectively stretch out mold cavity 2.4mm, and the alignment joint.Press earlier the upsetting force handle gently, whether really align with alignment wire rod and analyzing adapter, and pressure handle is placed the extreme higher position.
Press the upsetting force handle: pressure handle is exerted pressure to least significant end by highest point continuously, accomplish a upset welding.
Upset number of times: exert pressure as stated above 4 times.
The postwelding wire rod taken out from mould remove the joint overlap and promptly accomplish this welding.
Embodiment 2:
This instance is used to weld zinc-aluminium (Zn-Al) alloy wire of Φ 8mm.Wire rod is formed through the repeated annealing drawing by the hot extrusion wire rod of Φ 15mm, and joint form is butt joint.
With the two no oil films in surface, moisture film and other impurity; Section is a shear fracture; Length places J5 or J6 hydraulic car-type cold press welder mould respectively more than or equal to the Φ 8mm Zinc-aluminum alloy wire of jaw length, about respectively stretch out mold cavity 7.2mm, and the alignment joint.Press earlier and clamp button alignment wire rod and guarantee the joint alignment.
Press upset (welding) button: accomplish one time upset.
Upset number of times: 4 times.
The postwelding wire rod taken out from mould remove the joint overlap and promptly accomplish this welding.
Embodiment 3:
This instance is used to weld zinc-aluminium (Zn-Al) alloy wire of Φ 15mm.Wire rod is Φ 15mm by the ingot casting hot extrusion, and joint form is butt joint.
With the two no oil films in surface, moisture film and other impurity; Section is a shear fracture; Length places J5 or J6 hydraulic car-type cold press welder mould respectively more than or equal to the Φ 15mm Zinc-aluminum alloy wire of jaw length, about respectively stretch out mold cavity 15mm, and the alignment joint.Press earlier and clamp button alignment wire rod and guarantee the joint alignment.
Press upset (welding) button: accomplish one time upset.
Upset number of times: 4 times.
The postwelding wire rod taken out from mould remove the joint overlap and promptly accomplish this welding.
Claims (3)
1. a Cold welding technology that is used to be out of shape Zinc-aluminum alloy wire is characterized in that this technology comprises the following steps:
A, will be out of shape Zinc-aluminum alloy wire on demand repeated annealing be drawn into diameter d≤Φ 15mm;
Welding surface, shear fracture to above-mentioned distortion Zinc-aluminum alloy wire before b, the weldering carry out cleannes and smoothness processing;
C, select welding equipments, confirm welding pressure by welding machine model and matching die according to different wire rod cross section diameters:
0.10mm～0.50mm diameter wire rod is selected J1 type cold welding machine for use;
0.30mm～1.20mm diameter wire rod is selected J2 type cold welding machine for use;
1.00mm～3.25mm diameter wire rod is selected J3 type cold welding machine for use;
2.00mm～8.00mm diameter wire rod is selected fluid pressure type J4 type cold welding machine for use;
4.00mm～15.00mm diameter wire rod is selected fluid pressure type J5 type cold welding machine for use;
7.00mm～15.00mm diameter wire rod is selected fluid pressure type J6 type cold welding machine for use;
D, will be out of shape Zinc-aluminum alloy wire and insert weld mold, the wire rod length that requires butt welding is more than or equal to mould jaw length, and stretches out mold cavity (0.8～1) d, and d is a gauge or diameter of wire, and the alignment joint;
E, press equipment upsetting force handle gently,, and pressure handle placed the extreme higher position with the alignment whether really of alignment wire rod and analyzing adapter;
F, press the upsetting force handle, pressure handle is exerted pressure by highest point continuously promptly accomplish a top welding to least significant end, the number of times of exerting pressure is 3～4 times, and the welding pressure that guarantees welding latter stage is greater than the initial welding pressure of welding;
G, the postwelding wire rod is taken out from mould, and remove the wire connections overlap.
2. a kind of Cold welding technology that is used to be out of shape Zinc-aluminum alloy wire according to claim 1; The cleannes that it is characterized in that described welding surface require to reach no oil film, no moisture film, not have other organic impurities, with chemical solvent cleaning or ultrasonic purification or with the file in the mechanical means, wire brush, emery cloth or sand paper removing.
3. a kind of Cold welding technology that is used to be out of shape Zinc-aluminum alloy wire according to claim 1 is characterized in that described smoothness requirement reaches Ra≤3.2 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010504841 CN101972889B (en) | 2010-10-09 | 2010-10-09 | Cold-pressure welding process for deformed zinc aluminum alloy rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010504841 CN101972889B (en) | 2010-10-09 | 2010-10-09 | Cold-pressure welding process for deformed zinc aluminum alloy rods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101972889A CN101972889A (en) | 2011-02-16 |
| CN101972889B true CN101972889B (en) | 2012-09-05 |
Family
ID=43572813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010504841 Expired - Fee Related CN101972889B (en) | 2010-10-09 | 2010-10-09 | Cold-pressure welding process for deformed zinc aluminum alloy rods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101972889B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720739A (en) * | 2012-07-04 | 2012-10-10 | 东莞日进电线有限公司 | Wiring clamp |
| CN102816952A (en) * | 2012-08-31 | 2012-12-12 | 绍兴文理学院 | High-performance zinc-aluminum alloy wire |
| CN102828068A (en) * | 2012-08-31 | 2012-12-19 | 绍兴文理学院 | Zinc aluminum alloy wire |
| CN102962581B (en) * | 2012-12-13 | 2015-08-12 | 中国兵器工业第五二研究所 | The Cold welding method of deformation zinc alloy and copper alloy wire |
| CN107984171A (en) * | 2017-11-29 | 2018-05-04 | 铜陵市东方矿冶机械有限责任公司 | Small-section wire rod material processing technology |
| 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 |
| CN108941877A (en) * | 2018-08-28 | 2018-12-07 | 桂林金格电工电子材料科技有限公司 | A kind of cold pressure welding process of silver-nickel wire rod |
| CN109202386B (en) * | 2018-11-08 | 2020-06-23 | 宝鸡市泛美材料科技有限公司 | Method for improving weld joint structure of titanium and titanium alloy plate |
| CN109822204B (en) * | 2019-03-01 | 2022-02-08 | 西安斯瑞先进铜合金科技有限公司 | Welding method for welding CuFe alloy material by cold pressing process |
| TWI801286B (en) * | 2022-07-08 | 2023-05-01 | 郁舜企業有限公司 | Protective mask for ball games and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990009862A1 (en) * | 1989-03-03 | 1990-09-07 | Bwe Limited | Cold pressure welding method and machine |
| GB2288138A (en) * | 1994-04-06 | 1995-10-11 | Sherwen Engineering Co Ltd | Cold pressure butt welders |
| CN1537698A (en) * | 2003-04-17 | 2004-10-20 | 北京芳兴多功能床厂 | Copper-aluminium thin wall pipe friction welding technology |
| CN101797679A (en) * | 2009-12-29 | 2010-08-11 | 林榆滨 | Method for manufacturing high-purity metal wire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11170068A (en) * | 1997-12-10 | 1999-06-29 | Hitachi Cable Ltd | Hot pressure welding of easily oxidized metal wire |
-
2010
- 2010-10-09 CN CN 201010504841 patent/CN101972889B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990009862A1 (en) * | 1989-03-03 | 1990-09-07 | Bwe Limited | Cold pressure welding method and machine |
| US5147085A (en) * | 1989-03-03 | 1992-09-15 | Bwe Limited | Cold pressure welding method and machine |
| GB2288138A (en) * | 1994-04-06 | 1995-10-11 | Sherwen Engineering Co Ltd | Cold pressure butt welders |
| CN1537698A (en) * | 2003-04-17 | 2004-10-20 | 北京芳兴多功能床厂 | Copper-aluminium thin wall pipe friction welding technology |
| CN101797679A (en) * | 2009-12-29 | 2010-08-11 | 林榆滨 | Method for manufacturing high-purity metal wire |
Non-Patent Citations (1)
| Title |
|---|
| 季世泽.有色金属线材生产中冷压焊接的运用.《上海有色金属》.2000,第21卷(第3期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101972889A (en) | 2011-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101972889B (en) | Cold-pressure welding process for deformed zinc aluminum alloy rods | |
| KR100743857B1 (en) | Extruvet bonding apparatus and method of metal plates by plasticity flow | |
| CN109605039A (en) | A kind of electric arc increasing material and electric auxiliary hot rolling forming composite manufacturing method and device | |
| CN100515658C (en) | Large straight-line joint submerged arc welding tube fast production process | |
| CN101596642A (en) | Method for resistance welding and Welding Structure | |
| CN101298084B (en) | Technique for processing D type copper pipe with unequal-radius wall thickness or equal-radius wall thickness | |
| CN102962581B (en) | The Cold welding method of deformation zinc alloy and copper alloy wire | |
| CN102672435A (en) | Integral forming method for thin-walled titanium alloy part with irregularly-shaped curved surface and die | |
| CN101277779A (en) | Bolt for projection welding and method of welding the same | |
| KR101752733B1 (en) | Manufacturing method of double wall pipe | |
| CN101934337A (en) | Ring-shaped electro-plastic self-piercing riveting system | |
| CN113351976A (en) | Low-power multi-terminal electrode resistance spot welding process | |
| CN106735844A (en) | For the wrapping structure and spin friction soldering method of dissimilar metal spin friction weldering | |
| CN111195767A (en) | Method for prolonging service life of electrode through ultrasonic-assisted resistance spot welding | |
| CN101934339A (en) | Ring-shaped electro-plastic rivet-free riveting device | |
| CN111745101B (en) | Cake forging rounding forming forging method | |
| JP5244063B2 (en) | Electromagnetic forming method of aluminum material | |
| CN103008830A (en) | CMT (Cold Metal Transfer)-based light metal arc spot welding method and device thereof | |
| CN1330436C (en) | Method for making soldered hot-rolled composite metal tube | |
| CN101474718B (en) | Stir friction composite welding stainless steel device with resistor heat and method thereof | |
| CN102441585A (en) | Preparation method of aluminium alloy composite pipe | |
| CN201685010U (en) | Seam welding device for welded steel pipe | |
| CN111098018B (en) | High-frequency-assistance-based semisolid friction brazing method for dissimilar metals | |
| CN116275507B (en) | Laser welding method for dissimilar metal materials of stainless steel and carbon steel bars | |
| CN219483795U (en) | Large extruder for extruding large-size nickel-based alloy bars |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20161009 |