符合GB BCu93P-B
相当AWS BCuP-2
L201是接近共晶成分的铜磷钎料,熔点较低,具有良好的湿润性,可以流入间隙很小的钎缝。钎料的价格便宜,所以获得广泛的应用。但钎缝塑性差,处在冲击和弯曲工作状态的接头不宜采用。
L201 is a copper-phosphorus solder close to the eutectic composition. It has a low melting point and good wettability. It can flow into the brazing seam with a small gap. The price of brazing filler metal is cheap, so it is widely used. However, the brazing seam has poor plasticity and should not be used for joints that are in impact and bending working conditions.
| P | Cu |
| 6.6~7.4 | 余量 |
| 固相线 | 液相线 |
| 710 | 732 |
|
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 | |||||||
| 铸条 | 4×5×350 | |||||||
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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