TAMAC2-O HCL-12S-O銅板深拉伸和彎折強(qiáng)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

通常采用一些強(qiáng)化工藝來(lái)改善鋁青銅合金組織狀態(tài)以達(dá)到所需要的使用性質(zhì)和工藝性能。鋁青銅合金的強(qiáng)化主要手段有固溶強(qiáng)化、細(xì)晶強(qiáng)化、時(shí)效強(qiáng)化等。固溶強(qiáng)化就是將合金加熱到能使鋁、錳等合金元素全部或zui大限度的溶入銅基體中形成飽和或過(guò)飽和固溶體后，淬火至室溫得到過(guò)飽和固溶體的工藝。然而，這種過(guò)飽和固溶體在室溫或較高溫度下將發(fā)生分解而析出di二相，這種析出可使合金的強(qiáng)度、硬度顯著增加，這就是時(shí)效強(qiáng)化。固溶與時(shí)效往往配合使用來(lái)改善鋁青銅合金的性能。

焊接鋁青銅的主要困難是鋁的氧化，生成致密而難熔的Al2O3薄膜覆蓋在熔滴和熔池表面。易在焊縫中產(chǎn)生夾渣、氣孔和未熔合等缺陷。清除鋁的氧化物和防止鋁的氧化成為焊接鋁青銅成敗的關(guān)鍵。此外w(Al)<7%的單相鋁青銅具有熱脆性，在熱影響區(qū)易產(chǎn)生裂紋，比較難焊。w(A1)≥7%的單相合金和雙相合金，采取一些防裂措施是可以焊接的。

一般不推薦采用氣焊，因?yàn)楹茈y完全消除鋁的氧化物有害作用。如果必須采用氣焊，則須對(duì)焊絲、焊接坡口作徹底清理，使用含氯化鹽和氟化鹽的熔劑。嚴(yán)格采用中性焰等措施。