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Aluminium base brazing filler metal is mainly used for brazing aluminium and aluminium alloy. AI-Si flux-cored wire are substituted for ordinary ER4047 wire, particularly for brazing aluminum parts in refrigeration、air-condition and automotive industry.
Attention:The residue such as grease,oxide etc on the surface and connection must be removed strictly before the brazing.
| 中国标准牌号 Chinese Standard |
相当牌号 Equivalent Grade |
化学成分(Wt%) Composition |
熔化温度范围(℃) Melting Range |
主要特性及用途 Characteristics and Application |
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| 产品样本牌号 | AWS A5.8 | Si | Zn | Cd | AI | 固相线 Solidus |
液相线 Liquidus |
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| B-AI88Si | 料400 | BAISi-4 | 11.0 ～ 13.0 | ___ | ___ | 余 rem. | 577 | 582 | 流动性好，适用于小间隙接头，炉中或火焰钎焊铝及铝锰合金等。 |
| B-AI67CuSi | 料401 | ___ | 5.5 ～ 6.5 | Cu 27 ～ 29 | ___ | 余 rem. | 525 | 535 | 用途同料400，漫流性好，易于操作，接头抗蚀性低于用料400. |
| B-Zn80AI | ___ | ___ | 80 | ___ | 20 | 415 | 485 | 具有良好的漫流性及填充间隙的能力，耐蚀性较好，适用于各种铝及铝合金的火焰钎焊。 | |
| S-Cd73Zn | ___ | ___ | 27 | 73 | ___ | 266 | 275 | 流动性好，适用于铝及铝合金、铜及铜合金以及铝与铜等异种金属的软钎焊。 | |