CN102500872A - Copper-steel dissimilar metal welding method - Google Patents
Copper-steel dissimilar metal welding method Download PDFInfo
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- CN102500872A CN102500872A CN2011103291518A CN201110329151A CN102500872A CN 102500872 A CN102500872 A CN 102500872A CN 2011103291518 A CN2011103291518 A CN 2011103291518A CN 201110329151 A CN201110329151 A CN 201110329151A CN 102500872 A CN102500872 A CN 102500872A
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Abstract
The invention discloses a copper-steel dissimilar metal welding method. A copper part and a steel part are welded together to form a copper-steel corner welding workpiece. The copper-steel dissimilar metal welding method comprises the following steps: firstly, a surfacing copper based alloy welding material is heated on one side of the copper part so as to form a copper based alloy transition layer on the welding surface of the copper part, secondly, assembling the steel part on the copper part to perform spot welding after cooling the copper part and trimming weld joints, and finally adopting a copper based welding rod to weld the copper based alloy transition layer and the steel part together, wherein the welding method is gas shield welding in a cold state. The copper-steel dissimilar metal welding method adopts a surfacing copper based alloy transition layer in a hot state so as to enable the copper based alloy welding material to be combined with the copper part well, then the copper-steel corner welding is performed in the cold state which is convenient to operate, and penetration ratio of weld metal can be controlled effectively, thereby preventing weld joint hot crack from being produced and meeting the welding requirements.
Description
Technical field
The present invention relates to a kind of welding procedure, relate to a kind of copper-steel method for welding dissimilar metal specifically.
Background technology
At present, the fillet welding structure of copper-steel dissimilar metal generally adopts cold welding and hot dual mode, and in welding process, copper one side fusion area is prone to produce pore and mother metal grain growth phenomenon, owing to have low melting eutectics body and bigger thermal stress, so can crack; Liquid copper often takes place and between crystalline grain of steel, permeates and cause forming fire check in steel one side fusion area, and is particularly bigger at the workpiece volume, and in the less product of welding space, weldquality is difficult to guarantee.How a kind of operation of being convenient to can be provided, and the copper-steel method for welding dissimilar metal that satisfies welding requirements becomes the urgent demand of people.
Summary of the invention
The objective of the invention is to overcome the restriction that receives the workpiece welding line structure in the prior art and make conventional welding method be difficult to satisfy the deficiency of welding requirements, a kind of copper-steel method for welding dissimilar metal that welds transition zone that on copper spare body, adds is provided.
The objective of the invention is to realize like this: a kind of copper-steel method for welding dissimilar metal; It welds together formation copper-steel fillet welding workpiece with copper spare and steel part; It comprises the steps: at first, at copper spare one side heating surfacing of Cu-based alloy wlding, at the face of weld formation acid bronze alloy transition zone of copper spare; After treating copper spare cooling finishing weld seam; Steel part is assembled to the enterprising spot welding of copper spare, adopts copper base welding rod that acid bronze alloy transition zone and steel part are welded together at last, welding method is to protect weldering in the cold state therapeutic method to keep the adverse qi flowing downward.
Said gas is protected weldering and is carbon-dioxide arc welding or argon shield weldering.
The beneficial effect that the present invention compares with prior art is: copper of the present invention-steel method for welding dissimilar metal is employed in piles up soldering copper base alloy transition layer under the hot state; Can make the associativity of acid bronze alloy wlding and copper spare very good like this; And then under cold state, carrying out copper-steel fillet welding, cold state is convenient to operation more, and can effectively control the penetration ratio of weld metal; Prevent the generation of weld seam fire check, thereby satisfy welding requirements.
Description of drawings
Fig. 1 is the copper-steel fillet welding workpiece perspective view that adopts copper of the present invention-steel method for welding dissimilar metal;
Fig. 2 is the copper-steel fillet welding workpiece cross-sectional view that adopts copper of the present invention-steel method for welding dissimilar metal;
Among the figure: 1. copper spare; 2. steel part; 3. weld seam.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
As depicted in figs. 1 and 2, a kind of copper-steel method for welding dissimilar metal, it welds together formation copper-steel fillet welding workpiece with copper spare 1 and steel part 2; At first; At copper spare 1 one sides heating surfacing of Cu-based alloy wlding, form the acid bronze alloy transition zone at the face of weld of copper spare 1, treat copper spare 1 cooling finishing weld seam 3 after; Steel part 2 is assembled to copper spare 1 enterprising spot welding; Adopt copper base welding rod that acid bronze alloy transition zone and steel part 2 are welded together at last, welding method is to protect weldering in the cold state therapeutic method to keep the adverse qi flowing downward, and said gas is protected weldering and is carbon-dioxide arc welding or argon shield weldering.
After should be noted that; Above content is only in order to explain technical scheme of the present invention; But not to the restriction of protection domain of the present invention, the simple modification that those of ordinary skill in the art carries out technical scheme of the present invention or be equal to replacement does not all break away from the essence and the scope of technical scheme of the present invention.
Claims (3)
1. copper-steel method for welding dissimilar metal, said welding method welds together formation copper-steel fillet welding workpiece with copper spare and steel part, and it is characterized in that: it comprises the steps:
At first; At copper spare one side heating surfacing of Cu-based alloy wlding; Form the acid bronze alloy transition zone at the face of weld of copper spare, treat copper spare cooling finishing weld seam after, steel part is assembled to the enterprising spot welding of copper spare; Adopt copper base welding rod that acid bronze alloy transition zone and steel part are welded together at last, welding method is to protect weldering in the cold state therapeutic method to keep the adverse qi flowing downward.
2. copper according to claim 1-steel method for welding dissimilar metal is characterized in that: said gas is protected weldering and is carbon-dioxide arc welding.
3. copper according to claim 1-steel method for welding dissimilar metal is characterized in that: said gas is protected weldering and is the argon shield weldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103291518A CN102500872A (en) | 2011-10-17 | 2011-10-17 | Copper-steel dissimilar metal welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103291518A CN102500872A (en) | 2011-10-17 | 2011-10-17 | Copper-steel dissimilar metal welding method |
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| CN102500872A true CN102500872A (en) | 2012-06-20 |
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| CN2011103291518A Pending CN102500872A (en) | 2011-10-17 | 2011-10-17 | Copper-steel dissimilar metal welding method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699478A (en) * | 2012-07-09 | 2012-10-03 | 上海高压油泵厂有限公司 | Welding process for ejector rod of horizontal-type double-cylinder hydraulic press |
| CN104607827A (en) * | 2014-11-28 | 2015-05-13 | 沈阳大学 | Method for preventing cracks in cast steel and steel welding process |
| CN109496171A (en) * | 2016-10-17 | 2019-03-19 | 三菱重工业株式会社 | Dissimilar metal joint method |
| CN110091032A (en) * | 2019-04-11 | 2019-08-06 | 武汉船用机械有限责任公司 | Steel and copper heterogenous metal welding method |
| CN110587074A (en) * | 2019-09-29 | 2019-12-20 | 无锡市锡西化机配件有限公司 | Surfacing welding process for copper pipe and stainless steel pipe |
Citations (7)
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| JPS571574A (en) * | 1980-06-05 | 1982-01-06 | Fuji Kogyosho:Kk | Build-up welding method for base metal of extremely high heat conductivity and heat diffusivity |
| JPS57149068A (en) * | 1981-03-12 | 1982-09-14 | Mitsubishi Heavy Ind Ltd | Mig welding method |
| CN101244480A (en) * | 2007-02-14 | 2008-08-20 | 中国船舶重工集团公司第七二五研究所 | Welding process for high damping copper alloy and steel |
| CN101284330A (en) * | 2008-05-28 | 2008-10-15 | 山东大学 | Molybdenum copper and stainless steel argon tungsten argon arc welding process |
| CN101323042A (en) * | 2008-07-22 | 2008-12-17 | 渤海船舶重工有限责任公司 | Iron white copper and low-carbon steel dissimilar metal material arc melting and welding method |
| CN101323043A (en) * | 2008-07-22 | 2008-12-17 | 渤海船舶重工有限责任公司 | Iron white copper and austenitic stainless steel arc melting and welding method |
| CN101885101A (en) * | 2009-12-25 | 2010-11-17 | 中钢集团鞍山热能研究院有限公司 | Method for welding casting red copper oxygen lance spray nozzle |
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2011
- 2011-10-17 CN CN2011103291518A patent/CN102500872A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS571574A (en) * | 1980-06-05 | 1982-01-06 | Fuji Kogyosho:Kk | Build-up welding method for base metal of extremely high heat conductivity and heat diffusivity |
| JPS57149068A (en) * | 1981-03-12 | 1982-09-14 | Mitsubishi Heavy Ind Ltd | Mig welding method |
| CN101244480A (en) * | 2007-02-14 | 2008-08-20 | 中国船舶重工集团公司第七二五研究所 | Welding process for high damping copper alloy and steel |
| CN101284330A (en) * | 2008-05-28 | 2008-10-15 | 山东大学 | Molybdenum copper and stainless steel argon tungsten argon arc welding process |
| CN101323042A (en) * | 2008-07-22 | 2008-12-17 | 渤海船舶重工有限责任公司 | Iron white copper and low-carbon steel dissimilar metal material arc melting and welding method |
| CN101323043A (en) * | 2008-07-22 | 2008-12-17 | 渤海船舶重工有限责任公司 | Iron white copper and austenitic stainless steel arc melting and welding method |
| CN101885101A (en) * | 2009-12-25 | 2010-11-17 | 中钢集团鞍山热能研究院有限公司 | Method for welding casting red copper oxygen lance spray nozzle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699478A (en) * | 2012-07-09 | 2012-10-03 | 上海高压油泵厂有限公司 | Welding process for ejector rod of horizontal-type double-cylinder hydraulic press |
| CN104607827A (en) * | 2014-11-28 | 2015-05-13 | 沈阳大学 | Method for preventing cracks in cast steel and steel welding process |
| CN104607827B (en) * | 2014-11-28 | 2016-03-30 | 沈阳大学 | A kind of cast steel that prevents welds the method cracked with steel |
| CN109496171A (en) * | 2016-10-17 | 2019-03-19 | 三菱重工业株式会社 | Dissimilar metal joint method |
| CN110091032A (en) * | 2019-04-11 | 2019-08-06 | 武汉船用机械有限责任公司 | Steel and copper heterogenous metal welding method |
| CN110091032B (en) * | 2019-04-11 | 2021-07-02 | 武汉船用机械有限责任公司 | Method for welding dissimilar metals of steel and copper |
| CN110587074A (en) * | 2019-09-29 | 2019-12-20 | 无锡市锡西化机配件有限公司 | Surfacing welding process for copper pipe and stainless steel pipe |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120620 |