CN1277647C - Aluminium alloy resistance spot weld electrode composite material - Google Patents
Aluminium alloy resistance spot weld electrode composite material Download PDFInfo
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- CN1277647C CN1277647C CN 200410020171 CN200410020171A CN1277647C CN 1277647 C CN1277647 C CN 1277647C CN 200410020171 CN200410020171 CN 200410020171 CN 200410020171 A CN200410020171 A CN 200410020171A CN 1277647 C CN1277647 C CN 1277647C
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- copper
- resistance spot
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- aluminium alloy
- spot welding
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Abstract
The present invention discloses an aluminum alloy resistance spot welding electrode material, which belongs to an aluminium alloy resistance spot welding electrode material technology. The aluminium alloy resistance spot welding electrode material is characterized in that the present invention has the components by weight percentage of 85 to 99 wt% of copper base material and 1 to 15 wt% of titanium carbide whisker, wherein the copper base material is a copper base alloy of 1 wt% of cadmium and 99 wt% of copper, or a copper base alloy of 0.8 wt% of chromium and 99.2 wt% of copper, or a copper base alloy of 0.5 wt% of beryllium, 1.0 wt% of nickel, 1.0 wt% of cobalt and 97.5 wt% of copper, or a special copper base alloy of 0.65 wt% of chromium, 0.2 wt% of zirconium and 99.15 wt% of copper; the diameter of the titanium carbide whisker is 1 to 10 mu m, and the ratio of the length and diameter of the titanium carbide whisker is 5 to 1000. The present invention has the advantages of high hardness, favorable abrasive resistance and long service life.
Description
Technical field:
The present invention relates to a kind of aluminium alloy resistance spot welding electrode material, belong to the aluminium alloy resistance spot welding electrode material technology.
Background technology
In resistance spot welding, be: 1. favorable conductive, heat conductivility to the electrode material performance demands; 2. higher intensity and higher softening temperature; 3. electrode metal must have high oxidation resistance.
Electrode material commonly used at present has following several:
1, the acid bronze alloy of cadmium 1% and copper 99%;
2, chromium 0.8%, the acid bronze alloy of copper 99.2%;
3, beryllium 0.5%, nickel 1.0%, cobalt 1.0% and surplus are the acid bronze alloy of copper;
4, special acid bronze alloy is as acid bronze alloy of chromium 0.65% zirconium 0.2% bronze medal 99.15% etc.
When above-mentioned copper base alloy electrode material was used in aluminium alloy pinpoint welding, because its strength of materials is lower, wearability is relatively poor, electrode life was shorter.
Summary of the invention:
The object of the present invention is to provide a kind of aluminium alloy resistance spot welding electrode material, this electrode material not only has good heat-conducting and electric conductivity, and intensity is higher, wearability is good, long service life.
The present invention is realized by following technical proposals: a kind of aluminium alloy resistance spot welding electrode material is characterized in that its component and mass percent thereof are:
Copper-based material: 95～97%; Titanium carbide crystal whisker: 3～5%
Above-mentioned copper-based material is the acid bronze alloy of cadmium 1% and copper 99%, or the acid bronze alloy of chromium 0.8% bronze medal 99.2%, or beryllium 0.5%, nickel 1.0%, cobalt 1.0% and surplus be the acid bronze alloy of copper, or the special acid bronze alloy of chromium 0.65% zirconium, 0.2% bronze medal 99.15%.
The diameter of above-mentioned titanium carbide crystal whisker is 1～10 μ m, and L/D ratio is 5～1000.
The invention has the advantages that, the hardness height of this electrode material, wearability is good, long service life.
The specific embodiment
Embodiment one
Cut-off directly is 5 μ m, length is the TiC whisker of 5mm, mass ratio 5%, the acid bronze alloy of chromium 0.65% zirconium 0.2% bronze medal 99.15% of adding mass ratio 95%, the Vickers hardness of this electrode material is 85, and the Vickers hardness that does not add the acid bronze alloy of TiC whisker is 60.2.
Embodiment two
Cut-off directly is 5 μ m, and length is the TiC whisker of 5mm, and mass ratio 3% adds the acid bronze alloy of chromium 0.8% bronze medal 99.2% of mass ratio 97%, and the Vickers hardness of this electrode material is 81, and the Vickers hardness that does not add the acid bronze alloy of TiC whisker is 60.2.
Claims (3)
1. an aluminium alloy resistance spot welding electrode composite is characterized in that its component and mass percent thereof are: copper-based material: 95～97%; Titanium carbide crystal whisker: 3～5%.
2. by the described aluminium alloy resistance spot welding electrode composite of claim 1, it is characterized in that, copper-based material is the acid bronze alloy of cadmium 1% and copper 99%, or the acid bronze alloy of chromium 0.8% bronze medal 99.2%, or beryllium 0.5%, nickel 1.0%, cobalt 1.0% and surplus be the acid bronze alloy of copper, or the special acid bronze alloy of chromium 0.65% zirconium, 0.2% bronze medal 99.15%.
3. by the described aluminium alloy resistance spot welding electrode composite of claim 1, it is characterized in that the diameter of titanium carbide crystal whisker is 1～10 μ m, L/D ratio is 5～1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410020171 CN1277647C (en) | 2004-07-28 | 2004-07-28 | Aluminium alloy resistance spot weld electrode composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410020171 CN1277647C (en) | 2004-07-28 | 2004-07-28 | Aluminium alloy resistance spot weld electrode composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1597225A CN1597225A (en) | 2005-03-23 |
| CN1277647C true CN1277647C (en) | 2006-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410020171 Expired - Fee Related CN1277647C (en) | 2004-07-28 | 2004-07-28 | Aluminium alloy resistance spot weld electrode composite material |
Country Status (1)
| Country | Link |
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| CN (1) | CN1277647C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105177346B (en) * | 2015-09-01 | 2018-02-13 | 河南科技大学 | A kind of tungsten copper contact material and preparation method thereof |
| CN112281022B (en) * | 2020-11-04 | 2022-08-26 | 河南科技大学 | Copper-based composite material and preparation method thereof |
| CN116900434B (en) * | 2023-09-12 | 2023-12-15 | 长春三友汽车部件制造有限公司 | Method for improving wear resistance of aluminum alloy resistance spot welding electrode |
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2004
- 2004-07-28 CN CN 200410020171 patent/CN1277647C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1597225A (en) | 2005-03-23 |
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