CN102528240A - High-speed arc lead welding method for steel lining copper pipes - Google Patents
High-speed arc lead welding method for steel lining copper pipes Download PDFInfo
- Publication number
- CN102528240A CN102528240A CN2012100170959A CN201210017095A CN102528240A CN 102528240 A CN102528240 A CN 102528240A CN 2012100170959 A CN2012100170959 A CN 2012100170959A CN 201210017095 A CN201210017095 A CN 201210017095A CN 102528240 A CN102528240 A CN 102528240A
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- Prior art keywords
- copper
- steel
- welding
- speed
- arc lead
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 68
- 239000010949 copper Substances 0.000 title claims abstract description 68
- 238000003466 welding Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 title abstract description 40
- 239000010959 steel Substances 0.000 title abstract description 40
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 14
- 229910052786 argon Inorganic materials 0.000 claims abstract description 8
- 238000010891 electric arc Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 7
- 239000010962 carbon steel Substances 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 229910000765 intermetallic Inorganic materials 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
本发明提供了一种钢衬铜管的高速电弧铅焊方法，它能够实现对钢衬铜管的无缝对接，且电弧铅焊的焊速达到4-7m.min-1，并且保证钢衬铜管中的钢完全被铜所包覆。与现有技术相比，本发明采用铜及铜基焊料作为铅料将纵缝的铜层连接到一起，实现钢衬铜管中的钢完全被铜所包覆，保证液体无法渗入钢中，且焊缝强度达到了添充材料的强度并具有良好的耐腐蚀性；本发明采用纯氩气作为高速焊的保护气体，成本低廉且能达到常规惰性气体保护焊焊接速度的5-10倍；本发明的电弧铅焊方法可以使碳钢不熔化，铜层熔化，有效地阻止了铜钢金属间化合物的生成，保证了焊接质量。The invention provides a high-speed arc lead welding method for steel-lined copper pipes, which can realize the seamless butt joint of steel-lined copper pipes, and the welding speed of arc lead welding can reach 4-7m . The steel in the copper tube is completely clad in copper. Compared with the prior art, the present invention uses copper and copper-based solder as the lead material to connect the copper layers of the longitudinal seam together, so that the steel in the steel-lined copper pipe is completely covered by copper, ensuring that the liquid cannot penetrate into the steel, And the strength of the weld has reached the strength of the filling material and has good corrosion resistance; the invention uses pure argon as the shielding gas for high-speed welding, which is low in cost and can reach 5-10 times the welding speed of conventional inert gas shielded welding; The arc lead welding method of the invention can prevent the carbon steel from melting and the copper layer to melt, effectively preventing the formation of copper-steel intermetallic compounds and ensuring the welding quality.
Description
Technical field
The present invention relates to a kind of High Speed Welding welding method of electric arc lead welding welding method, particularly steel lining copper line of steel lining copper line.
Background technology
Because global copper resource famine, the metallic copper valency soars, but copper pipe in pipe-line systems such as refrigeration plant, water supply, air feed, heating, to use be irreplaceable.Therefore, copper pipe has occupied a large amount of production costs.In order to cater to market, reduce production costs, drop into the new material steel lining copper coin of substantial contribution successful development and use and give birth to, this method is to process last layer copper on the carbon steel sheet surface through the method for mechanical press, through tuber plate is processed into pipe then.The induction welding welding method is generally adopted in the welding of the pipe of same material; But traditional induction welding welding method can't weld steel lining copper line; Because the fusing point of copper is lower than carbon steel, copper steel dissolves the back and forms fully not solid solution, therefore how the steel in guaranteeing steel lining copper line fully by copper under the coating condition; To get up through the longitudinal seam welding of the steel lining copper line behind the veneer reeling machine roll bending, will be a main difficult problem that solves the steel lining copper line extensive use.The present invention adopts the longitudinal seam welding of electric arc lead welding technology with steel lining copper line.But existing electric arc lead welding welding method; General speed of welding is no more than two meters; And under the situation that surpasses two meters weldering speed; Adopt ternary or quaternary protection gas, the cost of this kind protection gas is high more a lot of than the cost of pure argon, the key that how to improve speed of welding, reduces cost and solve the steel lining copper line production management with being.
Summary of the invention
The object of the present invention is to provide a kind of high speed electric arc lead welding method of steel lining copper line, it can realize the slitless connection to steel lining copper line, and the weldering speed of electric arc lead welding reaches 4-7m.min
-1, and guarantee that the steel in the steel lining copper line is coated by copper fully.
The objective of the invention is to realize that through following technical scheme a kind of high speed electric arc lead welding method of steel lining copper line may further comprise the steps:
The first step, steel lining copper coin are through forming pipe behind the veneer reeling machine;
Second goes on foot, copper and copper alloy welding wire is filled on the longitudinal joint;
The 3rd step, under the protective gas condition, adopt cold metal transition arc welding process that longitudinal seam welding is got up.
The 3rd step, described speed of welding was 4-7m.min
-1, the longitudinal joint clearance control preferably is controlled between the 0.8-1.2mm between 0.5-2mm.
In order to practice thrift cost, the preferred argon gas of protective gas that the present invention is used.
Compared with prior art; The high speed electric arc lead welding method of steel lining copper line of the present invention has: 1. adopt copper and copper parent metal to connect together as the copper layer of lead material with longitudinal joint; Realize that the steel in the steel lining copper line is coated by copper fully; Guarantee that liquid can't infiltrate in the steel, and weld strength has reached and adds the intensity of filling material and have good anti-corrosion; 2. existing high-speed welding technology, protection gas adopts ternary or quaternary gas more, and the present invention adopts the protective gas of pure argon as High Speed Welding, and the with low cost and 5-10 that can reach conventional inert gas-shielded arc welding speed of welding is doubly; 3. this electric arc lead welding method can make carbon steel not melt, and the fusing of copper layer stoped the generation of copper steel intermetallic compound effectively, guaranteed welding quality; 4. cold metal transition welding method has reduced hot input quantity, has reduced the deflection of postwelding workpiece effectively.
The specific embodiment
Embodiment 1
At the single surperficial copper layer through mechanical press last layer 60 μ m of 0.8mm thick carbon steel plate, this steel lining copper coin fills material employing copper and copper alloy welding wire through forming pipe behind tuber, adding, and arc welding process adopts the cold metal transition, and speed of welding adopts 5m.min
-1, protection-gas welding adopts pure argon, and the longitudinal joint clearance control is between 0.8-1.0mm.Longitudinal joint to through the copper steel multiple tube of veneer reeling machine aftershaping carries out continuous welding.It is 170MPa that the test of this method postwelding drawn records weld strength, reached and added the intensity of filling material, and the steel in the steel lining copper line coats by copper fully, has reached the serviceability of corrosion resistance etc.
Embodiment 2
At two surperficial copper layers through mechanical press last layer 60 μ m of 0.8mm thick carbon steel plate, this steel lining copper coin fills material employing copper and copper alloy welding wire through forming pipe behind veneer reeling machine, adding, and arc welding process adopts the cold metal transition, and speed of welding adopts 4.5m.min
-1, protection-gas welding adopts pure argon, and the longitudinal joint clearance control is between 1.0-1.2mm.Longitudinal joint to through the copper steel multiple tube of veneer reeling machine aftershaping carries out continuous welding.It is 180MPa that the test of this method postwelding drawn records weld strength, reached and added the intensity of filling material, and the steel in the steel lining copper line coats by copper fully, has reached the serviceability of corrosion resistance etc.
Embodiment 3
At two surperficial copper layers through mechanical press last layer 60 μ m of 0.8mm thick carbon steel plate, this steel lining copper coin fills material employing copper and copper alloy welding wire through forming pipe behind veneer reeling machine, adding, and arc welding process adopts the cold metal transition, and speed of welding adopts 6m.min
-1, protection-gas welding adopts pure argon, and the longitudinal joint clearance control is between 1.0-2mm.Longitudinal joint to through the copper steel multiple tube of veneer reeling machine aftershaping carries out continuous welding.It is 178MPa that the test of this method postwelding drawn records weld strength, reached and added the intensity of filling material, and the steel in the steel lining copper line coats by copper fully, has reached the serviceability of corrosion resistance etc.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100170959A CN102528240A (en) | 2012-01-19 | 2012-01-19 | High-speed arc lead welding method for steel lining copper pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100170959A CN102528240A (en) | 2012-01-19 | 2012-01-19 | High-speed arc lead welding method for steel lining copper pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102528240A true CN102528240A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100170959A Pending CN102528240A (en) | 2012-01-19 | 2012-01-19 | High-speed arc lead welding method for steel lining copper pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102528240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737156A (en) * | 2013-11-28 | 2014-04-23 | 苏州长风航空电子有限公司 | Anti-wave sleeve welding method |
| CN113488286A (en) * | 2021-06-17 | 2021-10-08 | 重庆市南方阻燃电线电缆有限公司 | Wire repairing method and wire repairing structure of mineral magnesium oxide insulated copper sheathed cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070221631A1 (en) * | 2006-03-22 | 2007-09-27 | Ruokolainen Robert B | Method for joining or repairing metal surface parts |
| CN101045276A (en) * | 2007-04-24 | 2007-10-03 | 西安兰方实业有限公司 | Process for producing double-layer wrapped welding tube used for connecting indoor/outdoor units of air conditioner |
| CN102049591A (en) * | 2010-12-29 | 2011-05-11 | 上海交通大学 | Dissimilar metal spot welding system of light metal and coated steel and welding method thereof |
| CN102126064A (en) * | 2011-03-10 | 2011-07-20 | 上海交通大学 | Light metal and bare steel plate spot-welding method based on bulk forming solder |
| CN102179639A (en) * | 2011-04-12 | 2011-09-14 | 兰州理工大学 | Cold metal transition fusion welding-soldering connection method for magnesium steel dissimilar metal |
-
2012
- 2012-01-19 CN CN2012100170959A patent/CN102528240A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070221631A1 (en) * | 2006-03-22 | 2007-09-27 | Ruokolainen Robert B | Method for joining or repairing metal surface parts |
| CN101045276A (en) * | 2007-04-24 | 2007-10-03 | 西安兰方实业有限公司 | Process for producing double-layer wrapped welding tube used for connecting indoor/outdoor units of air conditioner |
| CN102049591A (en) * | 2010-12-29 | 2011-05-11 | 上海交通大学 | Dissimilar metal spot welding system of light metal and coated steel and welding method thereof |
| CN102126064A (en) * | 2011-03-10 | 2011-07-20 | 上海交通大学 | Light metal and bare steel plate spot-welding method based on bulk forming solder |
| CN102179639A (en) * | 2011-04-12 | 2011-09-14 | 兰州理工大学 | Cold metal transition fusion welding-soldering connection method for magnesium steel dissimilar metal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737156A (en) * | 2013-11-28 | 2014-04-23 | 苏州长风航空电子有限公司 | Anti-wave sleeve welding method |
| CN113488286A (en) * | 2021-06-17 | 2021-10-08 | 重庆市南方阻燃电线电缆有限公司 | Wire repairing method and wire repairing structure of mineral magnesium oxide insulated copper sheathed cable |
| CN113488286B (en) * | 2021-06-17 | 2022-09-30 | 重庆市南方阻燃电线电缆有限公司 | Wire repairing method and wire repairing structure of mineral magnesium oxide insulated copper sheathed cable |
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Application publication date: 20120704 |