TAMAC2-O HCL-12S-O铜板深拉伸和弯折强度
TAMAC2-O HCL-12S-O铜板深拉伸和弯折强度
Product name Country of origin LM’s trade name by or order/inquiry
Cu Sn10 (G-Sn Bz10) German standard / DIN 1705, Gussbronzen SS 5443
Cu Sn12 (G-Sn Bz12) German standard / DIN 1705, Gussbronzen SS 5465
Cu Sn12Ni (Sn Bz12Ni) German standard / DIN 1705, Gussbronzen SS 5465 m. extra Nickel, CC484K
Cu Sn12Pb(Sn Bz12Pb) German standard / DIN 1705, Gussbronzen SS 5465 m. extra Bly, CC482K
Cu Sn14 (G-Sn Bz14) German standard / DIN 1705, Gussbronzen SS 5475 (Cu Sn14),
Rg 5 German standard / DIN 1705, Gussbronzen SS 5204
Rg 7 German standard / DIN 1705, Gussbronzen Rg 7 (LM‘s standard r dmetall legering)
Rg 10 German standard / DIN 1705, Gussbronzen SS 5444 (Cu Sn10 Zn2), utg. leg., ~SS 5465
E-Cu 57, E-Cu 58 German standard / DIN 1708, Kupfer SS 5010, Cu-ETP, CW004A
OF-Cu German standard / DIN 1708, Kupfer SS 5011, CU-OF, CW008A
SF-Cu German standard / DIN 1708, Kupfer SS 5015, Cu-DHP, CW024A
Cu Pb5 Sn German standard / DIN 1716, Blei-Zinn-Guss-Bronzen Ej tillg nglig legering (Cu Pb5 Sn10), ~SS 5465
Cu Pb10 Sn German standard / DIN 1716, Blei-Zinn-Guss-Bronzen SS 5640
Cu Pb15 Sn German standard / DIN 1716, Blei-Zinn-Guss-Bronzen Cu Pb15 Sn (Cu Sn7 Pb15-C), CC496K
Cu Pb20 Sn German standard / DIN 1716, Blei-Zinn-Guss-Bronzen
通常采用一些强化工艺来改善铝青铜合金组织状态以达到所需要的使用性质和工艺性能。铝青铜合金的强化主要手段有固溶强化、细晶强化、时效强化等。固溶强化就是将合金加热到能使铝、锰等合金元素全部或zui大限度的溶入铜基体中形成饱和或过饱和固溶体后,淬火至室温得到过饱和固溶体的工艺。然而,这种过饱和固溶体在室温或较高温度下将发生分解而析出di二相,这种析出可使合金的强度、硬度显著增加,这就是时效强化。固溶与时效往往配合使用来改善铝青铜合金的性能。
焊接铝青铜的主要困难是铝的氧化,生成致密而难熔的Al2O3薄膜覆盖在熔滴和熔池表面。易在焊缝中产生夹渣、气孔和未熔合等缺陷。清除铝的氧化物和防止铝的氧化成为焊接铝青铜成败的关键。此外w(Al)<7%的单相铝青铜具有热脆性,在热影响区易产生裂纹,比较难焊。w(A1)≥7%的单相合金和双相合金,采取一些防裂措施是可以焊接的。
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。