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21. 发明公开

EP0733127A4 LEAD-FREE 6XXX ALUMINUM ALLOY 失效
标题翻译： BLEIFREIE 6XXX ALUMINIUMIUM GIERUNG
公开(公告)号：EP0733127A4
公开(公告)日：1997-03-19
申请号：EP95932521
申请日：1995-09-15
申请人： ALUMINUM CO OF AMERICA
发明人： BARTGES CHARLES W , KLEMP THOMAS J , SCOTT GERALD D , ALLYN MATTHEW D
IPC分类号： C22F1/04 , C22C21/00 , C22C21/02 , C22C21/08 , C22C21/12 , C22C21/14 , C22C21/16 , C22F1/00
CPC分类号： C22F1/04 , C22C21/003 , C22C21/02 , C22C21/08 , C22C21/12 , C22C21/14 , C22C21/16
摘要： An aluminum alloy suitable for machining, said alloy consisting essentially of: about 0.15-1.0 wt.% copper, about 0.4-1.5 wt.% tin, about 0.65-1.35 wt.% magnesium, about 0.4-1.1 wt.% silicon, about 0.002-0.35 wt.% manganese, up to about 0.5 wt.% iron, up to about 0.15 wt.% chromium and up to about 0.15 wt.% titanium, the remainder substantially aluminum. On a preferred basis, this alloy contains about 0.45-0.7 wt.% copper, about 0.9-1.3 wt.% tin, about 0.7-0.9 wt.% magnesium and about 0.45-0.75 wt.% silicon. The alloy is lead-free, bismuth-free, nickel-free, zirconium-free and cadmium-free. There is further disclosed an improved method for making screw machine stock or wire, rod and bar product from this alloy by casting, preheating, extruding, solution heat treating, cold finishing and thermally processing the aforementioned alloy composition.
摘要翻译：一种适于加工的铝合金，所述合金基本上由以下组成：约0.15-1.0重量％的铜，约0.4-1.5重量％的锡，约0.65-1.35重量％的镁，约0.4-1.1重量％的硅，约 0.002-0.35重量％的锰，至多约0.5重量％的铁，至多约0.15重量％的铬和至多约0.15重量％的钛，其余基本上为铝。在优选的基础上，该合金含有约0.45-0.7重量％的铜，约0.9-1.3重量％的锡，约0.7-0.9重量％的镁和约0.45-0.75重量％的硅。该合金是无铅，无铋，无镍，无锆和无镉。还公开了一种改进的方法，用于通过铸造，预热，挤出，固溶热处理，冷加工和热加工上述合金组合物来制造螺杆机料或由该合金制成的线材，棒材和棒材产品。

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