HPTC-EH C19900-EH铜合金电子冲压
纯铜导热系数为386.4 w/(m.k).
紫铜的用途比纯铁广泛得多,每年有50%的铜被电解提纯为纯铜,用于电气工业。这里所说的紫铜,确实要非常纯,含铜达99.95%以上才行,很少量的杂质,特别是磷、砷、铝等,会大大降低铜的导电率。主要用于制作发电机﹑母线﹑电缆﹑开关装置﹑变压器等电工器材和热交换器﹑管道﹑太阳能加热装置的平板集热器等导热器材。铜中含氧(炼铜时容易混入少量氧)对导电率影响很大,用于电气工业的铜一般都必须是无氧铜。另外,铅、锑、铋等杂质会使铜的结晶不能结合在一起,造成热脆,也会影响纯铜的加工。这种纯度很高的纯铜,一般用电解法精制:把不纯铜(即粗铜)作阳很,纯铜作阴很,以硫酸铜溶液为电解液。当电流通过后,阳很上不纯的铜逐渐熔解,纯铜便逐渐沉淀在阴很上。这样精制而得的铜;纯度可达99.99%。
紫铜还用于电机短路环,电磁加热感应器的制作,和大功率电子元件上面,接线排接线端子之类的。
紫铜也运用到了门、窗、扶手等家具及装饰上。
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.
Product name Country of origin LM’s trade name by or order/inquiry
JM 1 Johnson Metall / Own brand name on Swedish standard Rg7 (Cu Sn7 Zn4 Pb7), CC493K
JM 2 Johnson Metall / Own brand name on Swedish standard SS 5443-15 (Cu Sn10), CC480K
JM 3 Johnson Metall / Own brand name on Swedish standard SS 5465-15 (Cu Sn12), CC483K
JM 4 Johnson Metall / Own brand name on Swedish standard Cu Pb15 Sn (Cu Pb15 Sn7), CC496K
JM 5 Johnson Metall / Own brand name on Swedish standard SS 5640-15 (Cu Pb10 Sn10), CC495K
JM 6 Johnson Metall / Own brand name on Swedish standard SS 5710-15 (Cu Al10 Fe3), CC331G
JM 7 Johnson Metall / Own brand name on Swedish standard SS 5716-15 (Cu Al10 Ni5 Fe4 F70), AB-200
JM 7-20 Johnson Metall / Own brand name on Swedish standard SS 5716-20 (Cu Al10 Ni5 Fe4 F74), AB-220 Ni
锰黄铜具有优异的力学性能、铸造性能、切削性能以及成本低廉,成为螺旋桨的主要制造材料之一。锰黄铜除了用于制造螺旋桨外,还可用于制造汽车同步器齿环、轴承套、齿轮、冷凝器、闸门阀等。但是在污染海水中,锰黄铜会发生脱Zn 腐蚀,而且耐空泡腐蚀的性能也较差,导致锰黄铜螺旋桨易发生腐蚀疲劳断裂。