CuZn37Al C6782铝黄铜

CuZn37Al C6782铝黄铜

一般不推荐采用气焊，因为很难完全消除铝的氧化物有害作用。如果必须采用气焊，则须对焊丝、焊接坡口作彻底清理，使用含氯化盐和氟化盐的熔剂。严格采用中性焰等措施。

焊条电弧焊一般用于铝青铜锻件或铸件的焊补。采用ECuAl-c（即T237）焊条。除薄件（≤3mm）外，需采用70°～90°的V形坡口；薄件常不预热，对于 w（Al）<10%的合金，预热和层间温度一般不应超过150℃。焊接铝含量为10%～13%的铝青铜，厚工件推荐预热和层间温度约260℃，焊件宜快速冷却。采用直流反接，短弧和窄焊道施焊。多层焊时层间必须彻底清渣。

H5114 / H2206  Japanese standard, JIS SS 5716-15, SS 5716-20 (Cu Al10 Ni5 Fe4)

H5115 / H2207  Japanese standard, JIS SS 5640-15 (Cu Pb10 Sn10), CC495K

LM’s comparison list between different

norms from Copper alloys

Please read below on the wished for trade-name in the left hand column, and get it translated into LM-language on the right-hand

column. The right hand column with our name is either identical in composition or a fully replaceable alloy with only minor

differences. The column in the middle states the norm and its country of origin.

With no marks in front of LM’s alloy = alloy is identical, with this sign “~” = alloy is very similar, fully replaceable.

普通性能

紫铜是比较纯净的一种铜，一般可近似认为是纯铜，导电性、塑性都较好，但强度、硬度较差一些。紫铜具有优良的导热性﹑延展性和耐蚀性。紫铜中的微量杂质对铜的导电、导热性能有严重影响。其中钛、磷、铁、硅等显著降低电导率,而镉、锌等则影响很小。