CN108080813A - A kind of preparation method of copper-iron alloy surface-active solder flux applied to electric resistance welding - Google Patents
A kind of preparation method of copper-iron alloy surface-active solder flux applied to electric resistance welding Download PDFInfo
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- CN108080813A CN108080813A CN201711254192.9A CN201711254192A CN108080813A CN 108080813 A CN108080813 A CN 108080813A CN 201711254192 A CN201711254192 A CN 201711254192A CN 108080813 A CN108080813 A CN 108080813A
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- Prior art keywords
- oxide
- welding
- copper
- mass percent
- electric resistance
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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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/362—Selection of compositions of fluxes
Abstract
The present invention relates to welding technology fields, it is desirable to provide a kind of preparation method of copper-iron alloy surface-active solder flux applied to electric resistance welding.Including：(1) each raw material components are weighed by following mass percent relations：Boron oxide B2O3, 20%~25%；Silicon oxide sio2, 30%~35%；Chromium oxide Cr2O3, 15%~25%；Iron oxide Fe2O3, 8%~10%；Copper oxide CuO, 10%~15%；Tin oxide SnO2, 2%~5%；Wherein, (mass percent of boron oxide+silica+chromium oxide) ＞ 70%, (mass percent of iron oxide+copper oxide+tin oxide) ＜ 30%.(2) after each component is fully ground uniformly, object in the pasty state is uniformly mixed with suitable acetone.The present invention obtains surface-active solder flux by formulation optimization, and is applied successfully to the welding of integral component in electrical alloy.So as to obtain the seam organization of high quality, improve the weldquality between welding layer and base layer, and then promote the performances such as interface tensile strength, the bending strength of welding portion and body portion.
Description
Technical field
The present invention relates to welding technology field, especially face of weld are structurally-modified and improve weldquality field, specifically
It is a kind of preparation method of the copper-iron alloy surface-active solder flux applied to electric resistance welding.
Background technology
The development of activated rosin flux is with application earliest originating from middle 1960s, Ukraine bar institute of welding
(PWI) arc constriction can be promoted during the study found that using the activated rosin flux welding titanium alloy being made of halide, welding penetration increases
Add, so that the activated rosin flux of halide composition takes the lead in being introduced into titanium alloy.It has arrived in the 1970s, by oxide and fluorination
The activated rosin flux of object composition is industrially applied, and is mainly used for soldering stainless steel, and the feelings of silk are being not added with using straight flange groove
Under condition, the weld seam of single track fusion penetration 8-10mm can be obtained.To the nineties, Edison's institute of welding (EWI) in the U.S. and naval
The research of activated rosin flux has also been carried out at connection center (NJC), lives to develop stainless steel, carbon steel, nickel-base alloy and titanium alloy
Property solder flux, wherein activated rosin flux in welding carbon manganese steel, obtained immense success in terms of low-alloy steel.Why is activated rosin flux welding
So big effect is played, essential reason is in when (content reaches certain numerical value there are certain trace element in molten pool metal
More than) or when touching reactive atmosphere, liquid state of molten pool metallic surface tension values reduce and are changed into positive temperature coefficient,
So that molten pool metal forms the surface tension stream from molten bath periphery towards molten bath center, the base material heat of molten bath center leads to
The flowing for crossing liquid metal is directly transmitted to molten bath bottom, improves the efficiency of heating surface of molten bath bottom, so as to form the fusion penetration of bigger.
In electrical alloy field, electric resistance welding is a kind of more feasible welding technique, and work piece interface is flowed through using electric current
And the resistance fuel factor that adjacent domain generates is heated to fusing or mecystasis, is allowed to form metal combination.But still
There are some defects：For example the lap joint of point, seam weld causes the tension of connector because forming angle around two plate weld nuggets
Intensity and fatigue strength are relatively low；The technical problems such as lack of penetration phenomenon occurs in weld seam, and bond strength is weaker.
The content of the invention
The technical problem to be solved by the present invention is to overcome deficiency of the prior art, provide a kind of applied to electric resistance welding
The preparation method of copper-iron alloy surface-active solder flux.
To solve technical problem, solution of the invention is：
A kind of preparation method of the copper-iron alloy surface-active solder flux applied to electric resistance welding is provided, is comprised the following steps：
(1) each raw material components are weighed by following mass percent relations：
Boron oxide B2O3, 20%~25%
Silicon oxide sio2, 30%~35%
Chromium oxide Cr2O3, 15%~25%
Iron oxide Fe2O3, 8%~10%
Copper oxide CuO, 10%~15%
Tin oxide SnO2, 2%~5%
Wherein, (mass percent of boron oxide+silica+chromium oxide) ＞ 70%, (iron oxide+copper oxide+tin oxide
Mass percent) ＜ 30%；
(2) each component one is placed in mortar, be fully ground uniformly；It takes out placed in the vessel, is mixed with suitable acetone
Uniform object in the pasty state is closed, it is spare.
The application process of the copper-iron alloy surface-active solder flux in electric resistance welding, comprises the following steps：
(1) with flat hairbrush by the activated rosin flux even application of paste in the welding bead surface to be welded of base material, applied thickness with
Covering base material true qualities is advisable, and application width is 20~40mm, and every meter of welding bead activated rosin flux coating amount is 0.5~2g；
(2) after acetone completely volatilization, welded by the working specification of electric resistance welding.
In the present invention, the base material is the copper-iron alloy plate of thickness 15mm.
In the present invention, in the welding process, the welding condition is controlled to be：Fritting 40~60A of electric current, peak point current 50~
70A, 60~80mm/min of weldering speed, 2~4mm of arc length, 90 ° of welding gun inclination angle, 5~10L/min of throughput.
The realization principle of the present invention：
Surface-active solder flux coat applied to electric resistance welding can change the table in molten bath in the welding process of electric resistance welding
Face tension forms positive surface tension temperature gradient；Meanwhile the metal vapors that the element in formula is formed can make molten bath arc
Shrink, obtain high fusion penetration than seam organization.Compared to traditional resistor welding technology, the electric resistance welding under the formula system can improve
The tensile strength and bending strength of weld seam.
Compared with prior art, the invention has the advantages that：
The present invention obtains a kind of surface-active solder flux applied to electric resistance welding by the formulation optimization of system, and is succeeded
Ground is applied to the welding of integral component in electrical alloy.So as to obtaining the seam organization of high quality, improve welding layer with
Weldquality between base layer, and then promote the performances such as interface tensile strength, the bending strength of welding portion and body portion.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
(1) preparation of activated rosin flux：
Each component is weighed by mass percentage with electronic balance, and each group claimed is placed in mortar and is fully ground
It is placed in the vessel after even, it is spare to be mixed into paste with suitable acetone.Each component concrete content is as follows：
(1) boron oxide B2O3, mass percent 20%
(2) silicon oxide sio2, mass percent 30%
(3) chromium oxide Cr2O3, mass percent 25%
(4) iron oxide Fe2O3, mass percent 10%
(5) copper oxide CuO, mass percent 10%
(6) tin oxide SnO2, mass percent 5%
Wherein boron oxide+silica+chromium oxide ＞ 70%, iron oxide+copper oxide+tin oxide ＜ 30%；
(2) preparation of activated rosin flux
Each component one is placed in mortar, is fully ground uniformly；It takes out placed in the vessel, is mixed with suitable acetone
Even object in the pasty state, it is spare.
(3) application of activated rosin flux
With flat hairbrush by the activated rosin flux even application of paste in welding bead surface to be welded, applied thickness is to cover base material sheet
Color is advisable, and application width 20mm, every meter of welding bead activated rosin flux coating amount is 0.5g.After acetone volatilization completely, by electric resistance welding
Working specification welded.
(4) welding condition is set
In welding process plate used be copper-iron alloy material, sheet metal thickness 15mm.
Corresponding welding conditions are as follows：Fritting electric current 40A used, peak point current 50A, weldering speed 60mm/min, arc length 2mm,
90 ° of welding gun inclination angle, throughput 5L/min；Electric resistance welding experiment is carried out under the process conditions set, and effect is welded to it
Fruit includes through welding phenomenon, the tensile strength of weld seam, bending strength of weld seam etc. and is tested accordingly.
Embodiment 2
(1) preparation of activated rosin flux：
Each component is weighed by mass percentage with electronic balance, and each group claimed is placed in mortar and is fully ground
It is placed in the vessel after even, it is spare to be mixed into paste with suitable acetone.Each component concrete content is as follows：
(1) boron oxide B2O3, mass percent 25%
(2) silicon oxide sio2, mass percent 35%
(3) chromium oxide Cr2O3, mass percent 15%
(4) iron oxide Fe2O3, mass percent 8%
(5) copper oxide CuO, mass percent 15%
(6) tin oxide SnO2, mass percent 2%
Wherein boron oxide+silica+chromium oxide ＞ 70%, iron oxide+copper oxide+tin oxide ＜ 30%；
(2) preparation of activated rosin flux
Each component one is placed in mortar, is fully ground uniformly；It takes out placed in the vessel, is mixed with suitable acetone
Even object in the pasty state, it is spare.
(3) application of activated rosin flux
With flat hairbrush by the activated rosin flux even application of paste in welding bead surface to be welded, applied thickness is to cover base material sheet
Color is advisable, and application width 40mm, every meter of welding bead activated rosin flux coating amount is 2g.After acetone volatilization completely, by electric resistance welding
Working specification is welded.
(4) welding condition is set
In welding process plate used be copper-iron alloy material, sheet metal thickness 15mm.
Corresponding welding conditions are as follows：Fritting electric current 60A, peak point current 70A, weldering speed 80mm/min, arc length 4mm, welding gun
90 ° of inclination angle, throughput 10L/min；Electric resistance welding experiment is carried out under the process conditions set, and to its welding effect bag
Through welding phenomenon, the tensile strength of weld seam, bending strength of weld seam etc. is included to be tested accordingly.
Embodiment 3
(1) preparation of activated rosin flux：
Each component is weighed by mass percentage with electronic balance, and each group claimed is placed in mortar and is fully ground
It is placed in the vessel after even, it is spare to be mixed into paste with suitable acetone.
(1) boron oxide B2O3, mass percent 21%
(2) silicon oxide sio2, mass percent 32%
(3) chromium oxide Cr2O3, mass percent 23%
(4) iron oxide Fe2O3, mass percent 9%
(5) copper oxide CuO, mass percent 12%
(6) tin oxide SnO2, mass percent 3%
Wherein boron oxide+silica+chromium oxide ＞ 70%, iron oxide+copper oxide+tin oxide ＜ 30%
(2) preparation of activated rosin flux
Each component one is placed in mortar, is fully ground uniformly；It takes out placed in the vessel, is mixed with suitable acetone
Even object in the pasty state, it is spare.
(3) application of activated rosin flux
With flat hairbrush by the activated rosin flux even application of paste in welding bead surface to be welded, applied thickness is to cover base material sheet
Color is advisable, and application width 30mm, every meter of welding bead activated rosin flux coating amount is 1g.After acetone volatilization completely, by electric resistance welding
Working specification is welded.
(4) welding condition is set
In welding process plate used be copper-iron alloy material, sheet metal thickness 15mm.
Corresponding welding conditions are as follows：Fritting electric current 50A, peak point current 60A, weldering speed 70mm/min, arc length 3mm, welding gun
90 ° of inclination angle, throughput 8L/min；Electric resistance welding experiment is carried out under the process conditions set, and to its welding effect bag
Through welding phenomenon, the tensile strength of weld seam, bending strength of weld seam etc. is included to be tested accordingly.
The welding effect test result of each embodiment is as shown in the table：
The welding effect test result of 1 each embodiment of table
For existing traditional resistor welding technology, using activated rosin flux resistance welding technology process seam organization it is homogeneous,
Do not occur lack of penetration phenomenon, while test for tensile strength is carried out to the welding point of 3 embodiments, test performance is qualified.Moreover,
On the one hand welding efficiency and weldquality while used activated rosin flux formula are improved using activated rosin flux resistance welding technology
Have no effect on the physical property of weld assembly entirety.
Claims (4)
1. the preparation method of a kind of copper-iron alloy surface-active solder flux applied to electric resistance welding, which is characterized in that including following steps
Suddenly：
(1) each raw material components are weighed by following mass percent relations：
Boron oxide B2O3, 20%~25%
Silicon oxide sio2, 30%~35%
Chromium oxide Cr2O3, 15%~25%
Iron oxide Fe2O3, 8%~10%
Copper oxide CuO, 10%~15%
Tin oxide SnO2, 2%~5%
Wherein, (mass percent of boron oxide+silica+chromium oxide) the ＞ 70%, (quality of iron oxide+copper oxide+tin oxide
Percentage) ＜ 30%；
(2) each component one is placed in mortar, be fully ground uniformly；It takes out placed in the vessel, is mixed with suitable acetone
Even object in the pasty state, it is spare.
2. the application process for the activated rosin flux that claim 1 the method prepares, which is characterized in that comprise the following steps：
(1) with flat hairbrush by the activated rosin flux even application of paste in the welding bead surface to be welded of base material, applied thickness is to cover
Base material true qualities are advisable, and application width is 20~40mm, and every meter of welding bead activated rosin flux coating amount is 0.5~2g；
(2) after acetone completely volatilization, welded by the working specification of electric resistance welding.
3. according to the method described in claim 2, it is characterized in that, the base material is the copper-iron alloy plate of thickness 15mm.
4. according to the method described in claim 2, it is characterized in that, in the welding process, the welding condition is controlled to be：Fritting
40~60A of electric current, 50~70A of peak point current, 60~80mm/min of weldering speed, 2~4mm of arc length, 90 ° of welding gun inclination angle, throughput 5~
10L/min。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711254192.9A CN108080813A (en) | 2017-12-03 | 2017-12-03 | A kind of preparation method of copper-iron alloy surface-active solder flux applied to electric resistance welding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711254192.9A CN108080813A (en) | 2017-12-03 | 2017-12-03 | A kind of preparation method of copper-iron alloy surface-active solder flux applied to electric resistance welding |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706967A (en) * | 2013-12-20 | 2014-04-09 | 王洪亮 | Solder and welding method |
| CN103990919A (en) * | 2014-04-21 | 2014-08-20 | 张家港华宝机械制造有限公司 | Dedicated welding active agent for deep penetration TIG welding and using method |
| CN106794519A (en) * | 2014-10-14 | 2017-05-31 | 西门子能源有限公司 | The laser gain material manufacture of the three-dimensional part comprising multiple material of forming as one system |
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2017
- 2017-12-03 CN CN201711254192.9A patent/CN108080813A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706967A (en) * | 2013-12-20 | 2014-04-09 | 王洪亮 | Solder and welding method |
| CN103990919A (en) * | 2014-04-21 | 2014-08-20 | 张家港华宝机械制造有限公司 | Dedicated welding active agent for deep penetration TIG welding and using method |
| CN106794519A (en) * | 2014-10-14 | 2017-05-31 | 西门子能源有限公司 | The laser gain material manufacture of the three-dimensional part comprising multiple material of forming as one system |
Non-Patent Citations (1)
| Title |
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| 中国机械工程学会焊接学会: "电阻焊", 《焊接手册》 * |
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Application publication date: 20180529 |
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