CN107755868A - A kind of welding technique of electric resistance welding - Google Patents
A kind of welding technique of electric resistance welding Download PDFInfo
- Publication number
- CN107755868A CN107755868A CN201710948598.0A CN201710948598A CN107755868A CN 107755868 A CN107755868 A CN 107755868A CN 201710948598 A CN201710948598 A CN 201710948598A CN 107755868 A CN107755868 A CN 107755868A
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- CN
- China
- Prior art keywords
- welding
- welded part
- electric resistance
- resistance welding
- technique
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/02—Pressure butt welding
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/34—Preliminary treatment
Abstract
The invention discloses a kind of welding technique of electric resistance welding, it comprises the following steps：The molten condition time is reached according to welded part, adjusts the contact area of the electrode docked with welded part so that the two is in welding while the step of reaching molten condition.The welding technique of the electric resistance welding of the present invention, it is different according to the resistance of different materials or the welded piece of form, cause the time for reaching solderable state different, the contact surface of electrode and workpiece is adjusted, so that the two resistance is identical, to reach welded condition simultaneously, this kind of welding procedure, welding quality is high, highly reliable, is not in dry joint phenomenon.
Description
Technical field
The present invention relates to welding technology field, more particularly to it is a kind of larger for solder side and do not add the electric resistance welding of solder
Welding technique.
Background technology
At present in the large-area welding of the metals such as copper, it is typically employed at solder side and adds solder, then using electric resistance welding
Welding.
Electric resistance welding is to pass to caused resistance heat after electric current in itself using the resistance for being soldered metal, while to quilt when welding
Weld metal and apply certain pressure, so as to reach welding purpose, the fusing point of copper and its alloy is 1080 DEG C or so, and is welded with it
Part is because of its structure and the difference of material, and resistance is different, and the time that molten condition is reached within identical conduction time is different.It is special
When not being for the larger workpiece welding of some solders side, using existing electric resistance welding, easy " dry joint ", or not prison welding
Lean on；When being especially applicable to need the welding of the workpiece such as the moving contact of frequent movement, if dry joint, switch short can be made, caused " fried
Fire " phenomenon, brings potential safety hazard.
The content of the invention
It is an object of the invention to provide a kind of welding technique of electric resistance welding, the solder side of current workpiece is which solved
When larger, poor welding quality, the technical problem of potential safety hazard is also easy to produce.
To reach above-mentioned purpose, technical scheme proposed by the invention is：
A kind of welding technique of electric resistance welding of the present invention, it comprises the following steps：Reached and melted according to welded part
(or solderable) state for time, adjust the contact area of electrode docked with welded part so that the two in welding process simultaneously
The step of reaching melting (or solderable) state.
Wherein, the smooth no burn of the solder side of the welded part.
Preferably, described electrode is made of tungsten-copper alloy material.
Wherein, it is further comprising the steps of：
The first step, after regulating the contact area of welded part and electrode, precompressed is carried out to welded part；
Second step, to welded part persistent pressure；
3rd step, welded part is preheated；
4th step, welded part is cooled down；
5th step, electrode is powered, to welded part release current to produce heat；
6th step, maintain to be powered so that electric current continuingly acts on welded part；
7th step, the second step is repeated several times to the 6th step, until welded part welding is completed.
Wherein, the described first step is 0-1999ms to the time of welded part precompressed.
Wherein, the time of described second step persistent pressure is 0-1999ms.
Wherein, the preheating time in the 3rd step is 0-1999ms, and pre- thermocurrent is 0-150KA.
Wherein, the cool time in the 4th step is 0-1999ms.
Wherein, electric current duration is 0-1999ms when being powered in the 6th described step.
Wherein, its welded part for being used to weld is red copper and red copper litzendraht wire.
Compared with prior art, the welding technique of electric resistance welding of the invention, according to being welded for different materials or form
The resistance of workpiece is different, causes the time for reaching solderable state different, the contact surface of electrode and workpiece is adjusted, so as to
The two is set to reach welded condition simultaneously, this kind of welding procedure, welding quality is high, highly reliable, is not in dry joint phenomenon.
Brief description of the drawings
Fig. 1 is the flow chart of the welding technique of electric resistance welding of the present invention.
Embodiment
Below with reference to accompanying drawing, give the present invention further elaboration.
Please referring initially to accompanying drawing 1, electric resistance welding exactly workpiece is combined after by electrode apply pressure, pass through joint using electric current
Contact surface and adjacent domain caused by the method welded of resistance heat.Electric resistance welding flows through work piece interface and neighbour using electric current
Resistance fuel factor caused by near field is heated to fusing or mecystasis, is allowed to be formed a kind of method of metal combination.Root
According to electrothermal principle, electric heating be equal to electrical current square with resistance and the product of conduction time.For electric resistance welding, electrode pair
The electrical current of workpiece and conduction time are all identicals, and resistance is primarily present in：In itself, electrode contacts electrode with workpiece
Face, workpiece in itself and soldered workpiece solder side., it is necessary to which ensure can at the solder side of workpiece in resistance-welding process
Molten condition is reached simultaneously, can be only achieved optimal welding quality.Therefore, in the present embodiment, the welding procedure of the electric resistance welding
Method, its core comprise the following steps：Melting (or solderable) state for time, adjustment and welded part are reached according to welded part
The contact area of the electrode of docking is so that the step of the two reaches melting (or plasticity) state simultaneously, by adjusting contact area,
Change resistance value, so that the two can reach solderable state simultaneously in welding process.
Wherein, the smooth no burn of the solder side of the welded part, ensure that electric current flows through the uniformity of weldment, be also prevented from
There is spark in solder side.
Preferably, in the present embodiment, described electrode is made of tungsten-copper alloy material.
The welding technique of the complete electric resistance welding of the present embodiment, comprises the following steps：
First step S1, after regulating the contact area of welded part and electrode, precompressed is carried out to welded part；Using pressure
Force mechanisms carry out precompressed to having docked the welded part put well；Wherein, time of the described first step to welded part precompressed
For 0-1999ms.
Second step S2, to welded part persistent pressure；Wherein, the time of the second step persistent pressure is 0-1999ms.
3rd step S3, welded part is preheated, energization makes its heating；Wherein, the preheating time in the 3rd step
For 0-1999ms, pre- thermocurrent is 0-150KA.
4th step S4, welded part is cooled down；Wherein, the cool time in the 4th step is 0-1999ms.
5th step S5, electrode is powered, to welded part release current to produce heat；
6th step S6, maintain to be powered so that electric current continuingly acts on welded part；Wherein, described
Electric current duration is 0-1999ms when being powered in six steps.
7th step S7, the second step is repeated several times to the 6th step, until welded part welding is completed.
Wherein, in the present embodiment, the welded part that the welding technique of the electric resistance welding is used to weld is red copper and purple
Copper litz wire.
Compared with prior art, the welding technique of the electric resistance welding of the present embodiment, according to different materials or the quilt of form
The resistance of weldment is different, causes the time for reaching solderable state different, the contact surface of electrode and workpiece is adjusted, from
And make the two resistance identical, to reach welded condition simultaneously, this kind of welding procedure, welding quality is high, highly reliable, is not in
Dry joint phenomenon.
The above, only presently preferred embodiments of the present invention, are not intended to limit embodiment of the present invention, and this area is general
Lead to central scope and spirit of the technical staff according to the present invention, can very easily carry out corresponding flexible or modification, therefore originally
The protection domain of invention should be defined by the protection domain required by claims.
Claims (10)
1. a kind of welding technique of electric resistance welding, it is characterised in that comprise the following steps：Molten is reached according to welded part
The state time, the contact area of electrode docked with welded part is adjusted so that the two is in welding process while reaches molten condition
The step of.
2. the welding technique of electric resistance welding as claimed in claim 1, it is characterised in that the solder side light of the welded part
Slide without burn.
3. the welding technique of electric resistance welding as claimed in claim 1, it is characterised in that described electrode uses tungsten-copper alloy
Material is made.
4. the welding technique of electric resistance welding as claimed in claim 1, it is characterised in that further comprising the steps of：
The first step, after regulating the contact area of welded part and electrode, precompressed is carried out to welded part；
Second step, to welded part persistent pressure；
3rd step, welded part is preheated；
4th step, welded part is cooled down；
5th step, electrode is powered, to welded part release current to produce heat；
6th step, maintain to be powered so that electric current continuingly acts on welded part；
7th step, the second step is repeated several times to the 6th step, until welded part welding is completed.
5. the welding technique of electric resistance welding as claimed in claim 4, it is characterised in that the described first step is to welded part
The time of precompressed is 0-1999ms.
6. the welding technique of electric resistance welding as claimed in claim 4, it is characterised in that described second step persistent pressure
Time is 0-1999ms.
7. the welding technique of electric resistance welding as claimed in claim 4, it is characterised in that the preheating time in the 3rd step
For 0-1999ms, pre- thermocurrent is 0-150KA.
8. the welding technique of electric resistance welding as claimed in claim 4, it is characterised in that the cool time in the 4th step
For 0-1999ms.
9. the welding technique of electric resistance welding as claimed in claim 4, it is characterised in that electricity when being powered in the 6th described step
Stream duration is 0-1999ms.
10. the welding technique of electric resistance welding as claimed in claim 4, it is characterised in that it is used for the welded part welded
For red copper and red copper litzendraht wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948598.0A CN107755868A (en) | 2017-10-12 | 2017-10-12 | A kind of welding technique of electric resistance welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948598.0A CN107755868A (en) | 2017-10-12 | 2017-10-12 | A kind of welding technique of electric resistance welding |
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| Publication Number | Publication Date |
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| CN107755868A true CN107755868A (en) | 2018-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710948598.0A Pending CN107755868A (en) | 2017-10-12 | 2017-10-12 | A kind of welding technique of electric resistance welding |
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| CN (1) | CN107755868A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396623A (en) * | 2018-10-23 | 2019-03-01 | 上海航天设备制造总厂有限公司 | A kind of resistance welding method being connect with ultra-thin layers of copper with conducting wire suitable for space |
| CN109860497A (en) * | 2019-01-18 | 2019-06-07 | 湖北锂诺新能源科技有限公司 | A kind of welding method of Multilayer pole ear battery |
| CN110170726A (en) * | 2019-05-21 | 2019-08-27 | 上海航天设备制造总厂有限公司 | A kind of resistance welding method that space is connect with ultra-thin layers of copper with silver-plated braiding copper strips |
| CN114473163A (en) * | 2022-02-24 | 2022-05-13 | 南京众博机械制造有限公司 | Beryllium copper welding method |
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| CN1943953A (en) * | 2006-11-06 | 2007-04-11 | 鹏煜威科技(深圳)有限公司 | Resistance welding method for copper and iron |
| CN102569709A (en) * | 2010-12-16 | 2012-07-11 | 日立汽车系统株式会社 | Welded construction and resistance welding method |
| CN102581459A (en) * | 2012-03-07 | 2012-07-18 | 上海交通大学 | Electric resistance welding method for variable-thickness ultra-high strength hot formed steel plate and low-carbon steel plate |
| CN105057867A (en) * | 2015-08-21 | 2015-11-18 | 南昌航空大学 | Cross resistance welding process for heterogeneous wires |
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2017
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Patent Citations (4)
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| CN1943953A (en) * | 2006-11-06 | 2007-04-11 | 鹏煜威科技(深圳)有限公司 | Resistance welding method for copper and iron |
| CN102569709A (en) * | 2010-12-16 | 2012-07-11 | 日立汽车系统株式会社 | Welded construction and resistance welding method |
| CN102581459A (en) * | 2012-03-07 | 2012-07-18 | 上海交通大学 | Electric resistance welding method for variable-thickness ultra-high strength hot formed steel plate and low-carbon steel plate |
| CN105057867A (en) * | 2015-08-21 | 2015-11-18 | 南昌航空大学 | Cross resistance welding process for heterogeneous wires |
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| 中国机械工程师学会焊接学会: "《焊接手册》", 30 January 2008, 机械工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396623A (en) * | 2018-10-23 | 2019-03-01 | 上海航天设备制造总厂有限公司 | A kind of resistance welding method being connect with ultra-thin layers of copper with conducting wire suitable for space |
| CN109860497A (en) * | 2019-01-18 | 2019-06-07 | 湖北锂诺新能源科技有限公司 | A kind of welding method of Multilayer pole ear battery |
| CN110170726A (en) * | 2019-05-21 | 2019-08-27 | 上海航天设备制造总厂有限公司 | A kind of resistance welding method that space is connect with ultra-thin layers of copper with silver-plated braiding copper strips |
| CN114473163A (en) * | 2022-02-24 | 2022-05-13 | 南京众博机械制造有限公司 | Beryllium copper welding method |
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Application publication date: 20180306 |
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