符合GB BCu89PAg
相当AWS BCuP-3
L205是含5%银的磷铜钎料,其钎焊接头强度、塑性、导电性及漫流性比L204稍差,但比L201有所改善。
L205 is a copper-phosphorus solder containing 5% silver. Its brazing joint strength, plasticity, conductivity and flowability are slightly worse than L204, but better than L201.
适用于电机制造和仪表工业上钎焊铜及铜合金。
It is suitable for brazing copper and copper alloys in motor manufacturing and instrument industry.
| P | Ag | Cu |
| 5.8~6.2 | 4.8~5.2 | 余量 |
| 固相线 | 液相线 |
| 643 | 718 |
| 焊丝直径Φ (长度:500) |
1.2 | 1.6 | 2.0 | 2.4 | 3.0 | 4.0 | 5.0 | 6.0 |
| 扁丝 | 1.3×3.2 | |||||||
1. 钎焊前必须严格清除钎焊处及钎料表面的油脂、氧化物等污物。
2.钎焊铜时不需用钎焊熔剂,但钎焊铜合金必须配钎焊熔剂。
3.钎料的漫流性可凭借母材予热及钎焊温度的高低来适当调节。
1. Before brazing, the grease, oxides and other dirt on the brazing part and the surface of the solder must be strictly removed.
2. Brazing flux is not required when brazing copper, but brazing flux must be used for brazing copper alloys.
3. The flowability of the brazing filler metal can be adjusted appropriately by the preheating of the base material and the brazing temperature.
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