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公开(公告)号：US5916385A
公开(公告)日：1999-06-29
申请号：US74501
申请日：1998-05-07
CPC分类号： C22C21/003 , C22C21/12 , C22F1/057
摘要： An essentially lead-free aluminum alloy is provided for extruded screw machine stock. The alloy consists essentially of from about 4.5% to about 6% copper, a maximum of about 0.4% silicon, a maximum of about 0.7% iron, not more than about 0.3% zinc, from about 0.1% to about 1% bismuth, from about 0.1% to about 0.5% tin, balance aluminum and unavoidable impurities. The screw machine stock is prepared by extruding a homogenized billet to the desired shape, then the shape is subjected to a thermomechanical treatment involving at least one heat-treatment and cold working.
摘要翻译： 为挤出螺杆机械原料提供了一种基本上无铅的铝合金。 该合金基本上由约4.5％至约6％的铜，最多约0.4％的硅，最多约0.7％的铁，不超过约0.3％的锌，约0.1％至约1％的铋，来自 约0.1％至约0.5％的锡，余量为铝和不可避免的杂质。 通过将均质的坯料挤压成所需的形状来制备螺杆机械原料，然后对形状进行至少一次热处理和冷加工的热机械处理。
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公开(公告)号：US5803994A
公开(公告)日：1998-09-08
申请号：US820029
申请日：1997-03-19
CPC分类号： C22C21/003 , C22C21/12 , C22F1/057
摘要： An essentially lead-free aluminum alloy is provided for extruded screw machine stock. The alloy consists essentially of from about 4.5% to about 6% copper, a maximum of about 0.4% silicon, a maximum of about 0.7% iron, not more than about 0.3% zinc, from about 0.1% to about 1% bismuth, from about 0.2% to about 0.5% tin, balance aluminum and unavoidable impurities. The screw machine stock is prepared by extruding a homogenized billet to the desired shape, then the shape is subjected to a thermomechanical treatment involving at least one heat-treatment and cold working.
摘要翻译： 为挤出螺杆机械原料提供了一种基本上无铅的铝合金。 该合金基本上由约4.5％至约6％的铜，最多约0.4％的硅，最多约0.7％的铁，不超过约0.3％的锌，约0.1％至约1％的铋，来自 约0.2％至约0.5％的锡，余量为铝和不可避免的杂质。 通过将均质的坯料挤压成所需的形状来制备螺杆机械原料，然后对形状进行至少一次热处理和冷加工的热机械处理。
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