CN104985318A - Cold welding method - Google Patents
Cold welding method Download PDFInfo
- Publication number
- CN104985318A CN104985318A CN201510384848.3A CN201510384848A CN104985318A CN 104985318 A CN104985318 A CN 104985318A CN 201510384848 A CN201510384848 A CN 201510384848A CN 104985318 A CN104985318 A CN 104985318A
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- CN
- China
- Prior art keywords
- welding
- cooling
- welded
- cold
- cold welding
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- 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.)
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Classifications
-
- 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
-
- 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
- B23K20/26—Auxiliary equipment
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
Abstract
The invention relates to a welding method, in particular to a cold welding method and belongs to the field of welding processes. The cold welding method includes the steps that welding equipment and parts to be welded are prepared and welding is started; welded junctions are cooled in the welding process; after welding is finished, the welded junction cooling process is finished. According to the cold welding method, the welding effect of cold welding is improved by the adoption of an injection or sinking type cooling mode, a sudden change of temperature during welding is reduced under the cooling effect, and the welding quality is guaranteed. The injection type cooling mode is suitable for a wide range of welding materials and can be carried out outdoors. Sinking type welding is suitable for precise instruments, and the leakproofness of sinking type welding is good, so that welded bodies are protected against pollution.
Description
Technical field
The present invention relates to a kind of welding method, particularly relate to a kind of method of cold welding, belong to welding procedure field.
Background technology
Cold welding machine operation principle is under the effect of focus pressure load; two contact surface areas that needs are connected expand; thus making the oxidation protection film rupture of the original obstruction welding on face of weld, high-voltage load makes again the clean metal material close contact of exposure, produces the combination between atom.The cold welding joint of gross distortion when welding, its combination interface all presents complicated peak valley and indenting space pattern, and its simple geometric cross section of faying face area ratio is large.Under normal circumstances, the cold welding strength of joint with each metal is not less than mother metal; The cold welding strength of joint of dissimilar metal not the end in two edges generating line intensity.A lot of metal material can cause under traditional high-temperature soldering that joint distortion is thicker, foreign matter mixes, resistance becomes the defects such as large electric conductivity dies down.
The advantage of cold welding: reasonable in design, free adjustment.Different shelves discharge frequency can be selected, to reach best repair efficiency according to different metal materials.Heat-affected zone is little.Pile without heat input in the transients covered, thus without distortion, undercut and residual stress.Can not differential annealing be produced, after reparation, not need another warm process.Minimum soldering is impacted, and this welding machine overcomes common argon arc welding and workpiece periphery produced to the phenomenon of impacting in welding repair process.Also can relievedly repair there is no the work pieces process face of surplus.Reparation precision is high: built-up welding thickness, from several microns to several millimeters, only needs polishing, polishing.Welding is high by force: produce extremely strong adhesion owing to fully penetrating into surface of the work material.Economy: repair at once at the scene, enhances productivity, cost saving.
The patent No.: 201410298436.3, a kind of weld parts method, when the portion to be welded of part to be welded welds, makes described part to be welded contact with cooling fluid, and the temperature of described cooling fluid is lower than the temperature of described portion to be welded when welding.Cooling fluid is contained in container, and described container comprises base plate and is arranged on the annular sidewall on described base plate, and described portion to be welded is positioned at the ullage of described cooling fluid.Cooling fluid with described feature contacts to be welded before be normal temperature.Cooling fluid is water.
Above-mentioned patent is subject to the restriction of volume in welding process, and higher to the material requirements of container.In real process, cooling fluid is polluted and is caused welding to there is impurity, affects welding quality.
Summary of the invention
The present invention is directed to above-mentioned deficiency and provide the method being conducive to cold welding.
The present invention adopts following technical scheme:
The method of a kind of cold welding of the present invention, welding step is as follows:
1), prepare welding equipment and part to be welded, welding starts;
2), in welding process, butt welding mouth carries out cooling processing;
3), welding terminate after, namely weld bond cooling procedure terminates.
The method of cold welding of the present invention, described cooling processing adopts the mode of butt welding mouth injection cooling fluid or sunk in cooling device by part to be welded carries out.
The method of cold welding of the present invention, described when cooling device carries out cold welding, when welding equipment first welds part to be welded, part assemblies to be welded sinks in cooling device.
The method of cold welding of the present invention, described is square or hydrostatic column at cooling device.
The method of cold welding of the present invention, described cooling fluid is water.
The method of cold welding of the present invention, adopts the spray-type type of cooling or the water injection type type of cooling in described square or columniform cooling device.
Beneficial effect
The method of cold welding of the present invention, adopt injection or the sunk type of cooling to improve the welding effect of cold welding, the temperature fusion when reduction of cooling effect is welded, ensure that welding quality.
The type of cooling of injecting type is suitable for the scope of welding material extensively, can carry out out of doors.
Sunk welding is applicable to precision instrument, and sunk welded seal is good, can not pollute by butt welding body.
Detailed description of the invention
For making the object of the embodiment of the present invention and technical scheme clearly, the technical scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of protection of the invention.
Embodiment one
A method for cold welding, welding step is as follows:
1), prepare welding equipment and part to be welded, welding starts;
2), in welding process, butt welding mouth carries out cooling processing;
3), welding terminate after, namely weld bond cooling procedure terminates.
Cooling processing adopts butt welding mouth to spray the mode of cooling fluid, and cooling fluid is water.
Embodiment two
A method for cold welding, welding step is as follows:
1), prepare welding equipment and part to be welded, welding starts;
2), in welding process, butt welding mouth carries out cooling processing;
3), welding terminate after, namely weld bond cooling procedure terminates.
Cooling processing adopts butt welding mouth to spray the mode of cooling fluid, and spray regime is interim injection, and namely weld bond welding job keeps inconvenience, stops after spout butt welding mouth carries out cold one section, sprays after stopping one end time again.Until cooling terminates, which is applicable to large-scale welding job.Because large-area welding technique promotes successful.
Embodiment three
A method for cold welding, welding step is as follows:
1), prepare welding equipment and part to be welded, welding starts;
2), in welding process, butt welding mouth carries out cooling processing;
3), welding terminate after, namely weld bond cooling procedure terminates.
Part to be welded is sunk in cooling device and carries out.
When welding equipment first welds part to be welded, part assemblies to be welded sinks in cooling device.
Sunk cooling device is square container.Cooling fluid is water.The spray-type type of cooling is adopted in cooling device.
The equipment that square cooling device is used for volume larger carries out airtight welding; Square cooling device is provided with cooling fluid collecting device, can recycle.
Embodiment four
A method for cold welding, welding step is as follows:
1), prepare welding equipment and part to be welded, welding starts;
2), in welding process, butt welding mouth carries out cooling processing;
3), welding terminate after, namely weld bond cooling procedure terminates.
Part to be welded sinks in cooling device and carries out; When cooling device carries out cold welding, when welding equipment first welds part to be welded, part assemblies to be welded sinks in cooling device.Sunk cooling device is hydrostatic column, and cooling fluid is water.
The equipment that hydrostatic column is used for small volume carries out airtight welding; Generally speaking at the enterprising line operate of table top, can study soldering test and carry out, the welding of hydrostatic column sensing is more directly perceived.Hydrostatic column is provided with cooling fluid collecting device, can recycle.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. a method for cold welding, is characterized in that: welding step is as follows:
1), prepare welding equipment and part to be welded, welding starts;
2), in welding process, butt welding mouth carries out cooling processing;
3), welding terminate after, namely weld bond cooling procedure terminates.
2. the method for cold welding according to claim 1, is characterized in that: described cooling processing adopts the mode of butt welding mouth injection cooling fluid or sunk in cooling device by part to be welded carries out.
3. the method for cold welding according to claim 2, is characterized in that: described when cooling device carries out cold welding, when welding equipment first welds part to be welded, part assemblies to be welded sinks in cooling device.
4. the method for cold welding according to claim 3, is characterized in that: described is square or hydrostatic column at cooling device.
5. the method for cold welding according to claim 2, is characterized in that: described cooling fluid is water.
6. the method for cold welding according to claim 4, is characterized in that: adopt the spray-type type of cooling or the water injection type type of cooling in described square or columniform cooling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384848.3A CN104985318A (en) | 2015-06-30 | 2015-06-30 | Cold welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384848.3A CN104985318A (en) | 2015-06-30 | 2015-06-30 | Cold welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104985318A true CN104985318A (en) | 2015-10-21 |
Family
ID=54297273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510384848.3A Pending CN104985318A (en) | 2015-06-30 | 2015-06-30 | Cold welding method |
Country Status (1)
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| CN (1) | CN104985318A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002248583A (en) * | 2001-02-26 | 2002-09-03 | Hitachi Ltd | Method and device for friction stir working |
| US20030111515A1 (en) * | 2000-07-20 | 2003-06-19 | Gerhard Scheglmann | Method and device for friction stir welding with simultaneous cooling |
| CN101028669A (en) * | 2007-04-24 | 2007-09-05 | 中国航空工业第一集团公司北京航空制造工程研究所 | Thermal-settling agitation fricting welding method and apparatus by array flow-jet impact |
| CN103212782A (en) * | 2013-04-28 | 2013-07-24 | 江苏科技大学 | Enhancement blowing-half-dry type underwater friction stir soldering set |
| CN103639588A (en) * | 2013-11-11 | 2014-03-19 | 江苏科技大学 | Solid state heat sink device used for friction stir welding and welding method of solid state heat sink device |
| CN104084720A (en) * | 2014-06-26 | 2014-10-08 | 中国南方航空工业(集团)有限公司 | Part welding method |
-
2015
- 2015-06-30 CN CN201510384848.3A patent/CN104985318A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030111515A1 (en) * | 2000-07-20 | 2003-06-19 | Gerhard Scheglmann | Method and device for friction stir welding with simultaneous cooling |
| JP2002248583A (en) * | 2001-02-26 | 2002-09-03 | Hitachi Ltd | Method and device for friction stir working |
| CN101028669A (en) * | 2007-04-24 | 2007-09-05 | 中国航空工业第一集团公司北京航空制造工程研究所 | Thermal-settling agitation fricting welding method and apparatus by array flow-jet impact |
| CN103212782A (en) * | 2013-04-28 | 2013-07-24 | 江苏科技大学 | Enhancement blowing-half-dry type underwater friction stir soldering set |
| CN103639588A (en) * | 2013-11-11 | 2014-03-19 | 江苏科技大学 | Solid state heat sink device used for friction stir welding and welding method of solid state heat sink device |
| CN104084720A (en) * | 2014-06-26 | 2014-10-08 | 中国南方航空工业(集团)有限公司 | Part welding method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
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| RJ01 | Rejection of invention patent application after publication |