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1. 发明授权

US5810952A Lead-free 6000 series aluminum alloy 失效
公开(公告)号：US5810952A
公开(公告)日：1998-09-22
申请号：US742781
申请日：1996-10-31
申请人： Larry E. Farrar, Jr. , Norman LeRoy Coats, II
发明人： Larry E. Farrar, Jr. , Norman LeRoy Coats, II
IPC分类号： C22C21/00 , C22C21/06 , C22C21/08 , C22F1/00 , C22F1/047
CPC分类号： C22C21/06 , C22C21/003 , C22C21/08 , C22F1/047
摘要： A process for making an essentially lead-free screw machine stock alloy, comprising the steps of providing a cast aluminum ingot having a composition consisting essentially of about 0.55 to 0.70 wt. % silicon, about 0.15 to 0.45 wt. % iron, about 0.30 to 0.40 wt. % copper, about 0.8 to 0.15 wt. % manganese, about 0.80 to 1.10 wt. % magnesium, about 0.08 to 0.14 wt. % chromium, nor more than about 0.25 wt. % zinc, about 0.007 to 0.07 wt. % titanium, about 0.20 to 0.8 wt. % bismuth, about 0.15 to 0.25 wt. % tin, balance aluminum and unavoidable impurities; homogenizing the alloy at a temperature ranging from about 900.degree. to 1060.degree. F. for a time period of at least 1 hour; cooling to room temperature; cutting the ingot into billets; heating and extruding the billets into a desired shape; and thermomechanically treating the extruded alloy shape.

2. 发明授权

US5776269A Lead-free 6000 series aluminum alloy 失效
标题翻译：无铅6000系列铝合金
公开(公告)号：US5776269A
公开(公告)日：1998-07-07
申请号：US518726
申请日：1995-08-24
申请人： Larry E. Farrar, Jr. , Norman LeRoy Coats, II
发明人： Larry E. Farrar, Jr. , Norman LeRoy Coats, II
IPC分类号： C22C21/00 , C22C21/06 , C22C21/08 , C22F1/00 , C22F1/047
CPC分类号： C22C21/06 , C22C21/003 , C22C21/08 , C22F1/047
摘要： A process for making an essentially lead-free screw machine stock alloy, comprising the steps of providing a cast aluminum ingot having a composition consisting essentially of about 0.55 to 0.70 wt. % silicon, about 0.15 to 0.45 wt. % iron, about 0.30 to 0.40 wt. % copper, about 0.8 to 0.15 wt. % manganese, about 0.80 to 1.10 wt. % magnesium, about 0.08 to 0.14 wt. % chromium, nor more than about 0.25 wt. % zinc, about 0.007 to 0.07 wt. % titanium, about 0.20 to 0.8 wt. % bismuth, about 0.15 to 0.25 wt. % tin, balance aluminum and unavoidable impurities; homogenizing the alloy at a temperature ranging from about 900.degree. to 1060.degree. F. for a time period of at least 1 hour; cooling to room temperature; cutting the ingot into billets; heating and extruding the billets into a desired shape; and thermomechanically treating the extruded alloy shape.
摘要翻译：一种用于制造基本上无铅的螺杆机械坯料合金的方法，包括以下步骤：提供具有基本上由约0.55至0.70wt。％的组成的铸铝锭。％硅，约0.15至0.45wt。％铁，约0.30〜0.40重量％％铜，约0.8〜0.15重量％％锰，约0.80〜1.10重量％％镁，约0.08至0.14wt。％铬，不超过约0.25wt。％的锌，约0.007〜0.07重量％％钛，约0.20〜0.8重量％％铋，约0.15至0.25wt。％锡，余量铝和不可避免的杂质; 在约900°至1060°F的温度下使合金均质化至少1小时; 冷却至室温; 将锭切成坯料; 将坯料加热并挤出成所需的形状; 并对挤出的合金形状进行热机械处理。

3. 发明授权

US5916385A Aluminum-cooper alloy 失效
标题翻译：铝合金合金
公开(公告)号：US5916385A
公开(公告)日：1999-06-29
申请号：US74501
申请日：1998-05-07
申请人： Norman Leroy Coats, II , Larry Eugene Farrar, Jr.
发明人： Norman Leroy Coats, II , Larry Eugene Farrar, Jr.
IPC分类号： C22C21/00 , C22C21/12 , C22F1/057 , C22F1/04
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。

4. 发明授权

US5803994A Aluminum-copper alloy 失效
标题翻译：铝铜合金
公开(公告)号：US5803994A
公开(公告)日：1998-09-08
申请号：US820029
申请日：1997-03-19
申请人： Norman Leroy Coats, II , Larry Eugene Farrar, Jr.
发明人： Norman Leroy Coats, II , Larry Eugene Farrar, Jr.
IPC分类号： C22C21/00 , C22C21/12 , C22F1/057
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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