CN1943953A - Resistance welding method for copper and iron - Google Patents
Resistance welding method for copper and iron Download PDFInfo
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- CN1943953A CN1943953A CN 200610138217 CN200610138217A CN1943953A CN 1943953 A CN1943953 A CN 1943953A CN 200610138217 CN200610138217 CN 200610138217 CN 200610138217 A CN200610138217 A CN 200610138217A CN 1943953 A CN1943953 A CN 1943953A
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Abstract
The resistance welding method between copper and iron uses common resistance welding electrodes and special welding power source in spot welding and projection welding between copper and iron to reach complete liquid phase melt nucleus and true welding. The welding power source provides DC current in the discharge time of 1-100 ms and maximum current of 25-35 KA, and has frequency before rectification of 1000 Hz and single pulse width of 1 ms. The pressure between the workpiece and the electrode is 6 Kg/sq cm. The present invention has the technological effects of no inductor in the welding loop, no peak impact and no zero-cross point in the welding current.
Description
Technical field
The present invention relates to the electric resistance welding method of a kind of copper and alloy thereof and iron and alloy, steel.
Background technology
At present in the metal solder field, to the welding between the non-ferrous metals such as ferrous metal such as iron, steel and copper, mostly adopt scaling powder to add the mode of flame soldering, promptly adding solder (silver-bearing copper) between copper and iron melts solder with the thermal-flame that oxygen adds acetylene again, thereby reach the welding purpose, be used in addition that on the copper composite of compound iron welds, but these welding manners have inefficiency, the welding cost height, shortcomings such as welding surroundings difference.
Electric resistance welding is to utilize the resistance of soldered metal itself to pass to the resistance heat that produces behind the electric current, applied certain pressure to welding metal when welding simultaneously, thereby reach the welding purpose, the fusing point of copper and alloy thereof is about 1080 ℃, and the fusing point of iron and alloy thereof is about 1200 ℃～1500 ℃, the metal solder that the method for common electrical welding resistance is difficult to this two classes fusing point is differed greatly arrives together, a lot of method soldering copper and iron that adopt electric resistance welding, the result who obtains is that copper connects with the iron solid phase, rather than the welding of real liquid phase, cry usually " dry joint ".
Summary of the invention
The object of the present invention is to provide the method for the electric resistance welding of a kind of copper and iron, utilize the electric resistance welding General Principle, by the common resistance welding electrode and the special source of welding current, copper and iron are carried out the spot welding projection welding and obtains liquid phase nugget completely, realize real welding.
The invention provides the electric resistance welding method of a kind of copper and iron, it is characterized in that: the welding direct current that the source of welding current provides; Discharge time 1ms～100ms, maximum current 25KA～35KA, power frequency 1000Hz before the rectification, individual pulse 1ms, welding current is a direct current between workpiece and electrode, pressure is 6Kg/cm
2
Technique effect of the present invention is that welding circuit does not have inductance, does not have peak value to impact, and welding current is zero crossing not.
Description of drawings
Fig. 1 is the structural representation of welder of the present invention.
Fig. 2 is welding current waveform figure
Fig. 3 is the structural representation of the welder of first kind of specific embodiment of the present invention.
The specific embodiment
Fig. 1,3 has illustrated the apparatus structure of first kind of specific embodiment of the present invention.In this example, copper pipe and compressor housing are welded; At first the face of weld of copper pipe and compressor housing is handled, remove oxide skin(coating) dirt, oil and other impurity to reduce contact resistance, thereafter copper pipe places on the top electrode, and housing places and pass to the 25KA direct current on the bottom electrode between upper and lower electrode, applies 6Kg/cm between electrode
2Pressure, weld interval 100ms, the result forms nugget between copper pipe and housing, welding current as shown in Figure 2.
By the description of this invention, should be appreciated that the various changes and the variant that do not deviate from essence of the present invention all can realize the present invention.The present invention is not limited to above-mentioned embodiment, and should be interpreted as any or all of embodiment within the appended claim scope.
Claims (1)
1. the electric resistance welding method of copper and iron is characterized in that: the welding direct current that the source of welding current provides; Discharge time 1ms～100ms, maximum current 25KA～35KA, electric smelting frequency 1000Hz before the rectification, individual pulse 1ms, welding current is a direct current between workpiece and electrode, pressure is 6Kg/cm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101382174A CN100448588C (en) | 2006-11-06 | 2006-11-06 | Resistance welding method for copper and iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101382174A CN100448588C (en) | 2006-11-06 | 2006-11-06 | Resistance welding method for copper and iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1943953A true CN1943953A (en) | 2007-04-11 |
| CN100448588C CN100448588C (en) | 2009-01-07 |
Family
ID=38043723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101382174A Active CN100448588C (en) | 2006-11-06 | 2006-11-06 | Resistance welding method for copper and iron |
Country Status (1)
| Country | Link |
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| CN (1) | CN100448588C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100562396C (en) * | 2008-07-11 | 2009-11-25 | 广州（从化）亨龙机电制造实业有限公司 | A kind of electric resistance welding method |
| CN103537868A (en) * | 2012-07-12 | 2014-01-29 | 惠而浦股份有限公司 | Device for simultaneous shaping and welding of connector pipes for compressors using a centralising pin |
| CN107755868A (en) * | 2017-10-12 | 2018-03-06 | 东莞市鹏煜威高智能科技有限公司 | A kind of welding technique of electric resistance welding |
| CN109108443A (en) * | 2017-06-22 | 2019-01-01 | 鹤山联塑实业发展有限公司 | A kind of fire extinguisher nozzle and upper seal head structure and its welder and its welding method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61286076A (en) * | 1985-06-12 | 1986-12-16 | Hitachi Ltd | Press joining method for iron pipe and copper pipe |
| JP2741946B2 (en) * | 1990-08-02 | 1998-04-22 | 株式会社神戸製鋼所 | Resistance welding method of copper or copper alloy and iron or iron alloy |
| CN1080226A (en) * | 1993-02-25 | 1994-01-05 | 贵州航空工业总公司贵阳电机厂 | Copper and low-carbon steel resistance diffusion welding process |
| JP2004351507A (en) * | 2003-05-30 | 2004-12-16 | Kobe Steel Ltd | Method and joint for spot-welding of ferrous material to aluminum material |
| JP4303629B2 (en) * | 2004-04-02 | 2009-07-29 | 本田技研工業株式会社 | Resistance welding method of different materials, aluminum alloy material, and resistance welding member of different materials |
-
2006
- 2006-11-06 CN CNB2006101382174A patent/CN100448588C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100562396C (en) * | 2008-07-11 | 2009-11-25 | 广州（从化）亨龙机电制造实业有限公司 | A kind of electric resistance welding method |
| CN103537868A (en) * | 2012-07-12 | 2014-01-29 | 惠而浦股份有限公司 | Device for simultaneous shaping and welding of connector pipes for compressors using a centralising pin |
| CN109108443A (en) * | 2017-06-22 | 2019-01-01 | 鹤山联塑实业发展有限公司 | A kind of fire extinguisher nozzle and upper seal head structure and its welder and its welding method |
| CN107755868A (en) * | 2017-10-12 | 2018-03-06 | 东莞市鹏煜威高智能科技有限公司 | A kind of welding technique of electric resistance welding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100448588C (en) | 2009-01-07 |
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Address after: 518000 Guangdong province Shenzhen City Pingshan Kengzi Shatin community CaiTian Road No. 25 Patentee after: Prevail Technology (Shenzhen) Co., Ltd. Address before: 518000, No. 68-1, Wu Gang Road, West Hang Industrial Zone, Shenzhen, Guangdong, Henggang Patentee before: Prevail Technology (Shenzhen) Co., Ltd. |
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Owner name: SHENZHEN PREVAIL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: PREVAIL TECHNOLOGY (SHENZHEN) CO., LTD. |
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Address after: 518000 Guangdong province Shenzhen City Pingshan Kengzi Shatin community CaiTian Road No. 25 Patentee after: Shenzhen Prevail Technology Co., Ltd. Address before: 518000 Guangdong province Shenzhen City Pingshan Kengzi Shatin community CaiTian Road No. 25 Patentee before: Prevail Technology (Shenzhen) Co., Ltd. |