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1. 发明申请

US20110017366A1 7000-SERIES ALUMINUM ALLOY EXTRUDED PRODUCT AND METHOD OF PRODUCING THE SAME 审中-公开
标题翻译： 7000系列铝合金挤压产品及其生产方法
公开(公告)号：US20110017366A1
公开(公告)日：2011-01-27
申请号：US12896124
申请日：2010-10-01
申请人： Tomoo YOSHIDA , Arata Yoshida , Shinji Makino
发明人： Tomoo YOSHIDA , Arata Yoshida , Shinji Makino
IPC分类号： C22F1/053
CPC分类号： B21C23/002 , C22C21/10 , C22F1/02 , C22F1/053
摘要： A method of producing an aluminum alloy extruded product comprising: casting a billet using a 7000-series aluminum alloy having Mg of 0.95 to 1.95 mass %, Zn of 5.10 to 7.90 mass %, an excess mg or Zn content relative to a stoichiometric composition shown by MgZn2 of less than 0.5 mass %; an A=Zn−5.36×Mg (mass %) of −2.64 to 0.50; and at least one of Mn, Cr and Zr with a total content thereof being less than 0.25 mass %; homogenizing the billet at 450 to 550° C.; preheating the homogenized product at 480 to 540° C.; extruding the preheated product with a die heated at 440 to 500° C.; and subjecting the extruded product to press quenching at an air cooling rate of 29° C./min or more, wherein a proof stress increase due to natural aging is 15 Mpa or less and a hardness HV increase due to natural aging is seven or less.
摘要翻译：一种铝合金挤压制品的制造方法，其特征在于，使用Mg为0.95〜1.95质量％，Zn为5.10〜7.90质量％，相对于所示化学计量组成的过量的mg或Zn含量的7000系铝合金铸造坯料通过MgZn2小于0.5质量％; A = Zn-5.36×Mg（质量％）为-2.64〜0.50; 和Mn，Cr和Zr中的至少一种，其总含量小于0.25质量％; 在450〜550℃下均质化钢坯。在480至540℃下预热均质产物。用加热到440-500℃的模具挤压预热产品; 以29℃/分钟以上的空气冷却速度对挤压制品进行加压淬火，其中由于自然时效而产生的抗张力增加为15Mpa以下，由于自然时效而增加的硬度HV为7以下。

2. 发明申请

US20090053098A1 7000-SERIES ALUMINUM ALLOY EXTRUDED PRODUCT AND METHOD OF PRODUCING THE SAME 审中-公开
标题翻译： 7000系列铝合金挤压产品及其生产方法
公开(公告)号：US20090053098A1
公开(公告)日：2009-02-26
申请号：US12254348
申请日：2008-10-20
申请人： Tomoo YOSHIDA , Arata YOSHIDA , Shinji MAKINO
发明人： Tomoo YOSHIDA , Arata YOSHIDA , Shinji MAKINO
IPC分类号： C22C21/10 , C22F1/053
CPC分类号： B21C23/002 , C22C21/10 , C22F1/02 , C22F1/053
摘要： An extruded product includes a 7000-series aluminum alloy, the 7000-series aluminum alloy having an excess Mg content or an excess Zn content of less than 0.5 mass % with respect to a stoichiometric composition shown by MgZn2.
摘要翻译：挤出产品包括7000系铝合金，相对于MgZn2所示的化学计量组成，具有超过Mg含量或过量Zn含量小于0.5质量％的7000系铝合金。

3. 发明申请

US20110240178A1 Al-Mg-Si ALUMINUM ALLOY EXTRUDED PRODUCT EXHIBITING EXCELLENT FATIGUE STRENGTH AND IMPACT FRACTURE RESISTANCE 有权
标题翻译： Al-Mg-Si铝合金挤压产品展现出优异的疲劳强度和抗冲击性
公开(公告)号：US20110240178A1
公开(公告)日：2011-10-06
申请号：US13160609
申请日：2011-06-15
申请人： Karin SHIBATA , Tomoo YOSHIDA , Hiroshi TABUCHI , Hidetoshi TAKAGI
发明人： Karin SHIBATA , Tomoo YOSHIDA , Hiroshi TABUCHI , Hidetoshi TAKAGI
IPC分类号： C22F1/04 , C22F1/043 , C22F1/047 , C22F1/05 , C22F1/057
CPC分类号： C22C21/08 , C22C21/02
摘要： A method includes: preparing a molten aluminum alloy consisting of 0.3-0.8 mass % Mg, 0.5-1.2 mass % Si, 0.3 mass % or more excess Si relative to the Mg2Si stoichiometric composition, 0.05-0.4 mass % Cu, 0.2-0.4 mass % Mn, 0.1-0.3 mass % Cr, 0.2 mass % or less Fe, 0.2 mass % or less Zr, and 0.005-0.1 mass % Ti, with the balance being aluminum and unavoidable impurities; casting the alloy into a billet at a speed of 80 mm/min or more and a cooling rate of 15° C./sec or more; extruding the billet into an extruded product; water cooling the product immediately after extrusion at 500° C./sec or more; and artificially aging the product, thereby yielding an extruded product with fatigue strength of 140 MPa or more, fatigue ratio of 0.45 or more, an interval between striations on a fatigue fracture surface of 5.0 μm or less, and a maximum length of Al—Fe—Si crystallized products of 10 μm or less.
摘要翻译：一种方法包括：制备由0.3-0.8质量％Mg，0.5-1.2质量％Si，相对于Mg 2 Si化学计量组成为0.3质量％以上的过量Si，0.05〜0.4质量％的Cu，0.2〜0.4质量％％Mn，0.1-0.3质量％Cr，0.2质量％以下的Fe，0.2质量％以下的Zr和0.005〜0.1质量％的Ti，余量为铝和不可避免的杂质; 将合金以80mm / min以上的速度和15℃/ sec以上的冷却速度铸造成坯料; 将坯料挤压成挤出产品; 在500℃/秒以上挤出后立即冷却产品; 并使产品人为老化，得到疲劳强度为140MPa以上，疲劳比为0.45以上，疲劳断裂面的条纹间隔为5.0μm以下的挤出制品和Al-Fe的最大长度 -Si结晶产物为10μm以下。

4. 发明申请

US20100047114A1 Al-Mg-Si ALUMININUM ALLOY EXTRUDED PRODUCT EXHIBITING EXCELLENT FATIGUE STRENGTH AND IMPACT FRACTURE RESISTANCE 审中-公开
标题翻译： Al-Mg-Si铝合金挤压产品展现出优异的疲劳强度和抗冲击性
公开(公告)号：US20100047114A1
公开(公告)日：2010-02-25
申请号：US12543545
申请日：2009-08-19
申请人： Karin SHIBATA , Tomoo YOSHIDA , Hiroshi TABUCHI , Hidetoshi TAKAGI
发明人： Karin SHIBATA , Tomoo YOSHIDA , Hiroshi TABUCHI , Hidetoshi TAKAGI
IPC分类号： C22C21/16
CPC分类号： C22C21/08 , C22C21/02
摘要： An aluminum alloy extruded product includes 0.3 to 0.8 mass % of Mg, 0.5 to 1.2 mass % of Si, 0.3 mass % or more of excess Si with respect to the Mg2Si stoichiometric composition, 0.05 to 0.4 mass % of Cu, 0.2 to 0.4 mass % of Mn, 0.1 to 0.3 mass % of Cr, 0.2 mass % or less of Fe, 0.2 mass % or less of Zr, and 0.005 to 0.1 mass % of Ti, with the balance being aluminum and unavoidable impurities, the aluminum alloy extruded product having a fatigue strength of 140 MPa or more, a fatigue ratio of 0.45 or more, and an interval between striations on a fatigue fracture surface of 5.0 μm or less.
摘要翻译：相对于Mg2Si化学计量组成，含有0.3〜0.8质量％的Mg，0.5〜1.2质量％的Si，0.3质量％以上的过量Si，0.05〜0.4质量％的Cu，0.2〜0.4质量％的Mn，0.1〜0.3质量％的Cr，0.2质量％以下的Fe，0.2质量％以下的Zr和0.005〜0.1质量％的Ti，余量为铝和不可避免的杂质，铝合金挤出疲劳强度为140MPa以上，疲劳率为0.45以上，疲劳断裂面上的条纹间隔为5.0μm以下的产品。

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