公开(公告)号：US20130146183A1

公开(公告)日：2013-06-13

申请号：US13323056

申请日：2011-12-12

申请人： Yukimasa MIYATA ,  Shinji Yoshihara

发明人： Yukimasa MIYATA ,  Shinji Yoshihara

IPC分类号： C22C21/10 ,  C22C21/06

摘要： An aluminum alloy extruded material in relation with the present invention is with high strength by die quench air cooling and excellent in SCC resistance. The aluminum alloy extruded material is an Al—Zn—Mg-based aluminum alloy extruded material for structural member for automobiles such as a bumper reinforce, a door guard bar and the like which satisfies three expressions of 5.0≦[Zn]7.0, [Zn]/5.38

摘要翻译： 与本发明相关的铝合金挤压材料通过模淬气冷却具有高强度，并且具有优异的耐SCC性。 铝合金挤压材料是用于汽车结构件的Al-Zn-Mg基铝合金挤压材料，例如保险杠加强件，门防护棒等，其满足5.0 @ [Zn] 7.0，[Zn ] /5.38 [[Mg] @ [Zn] /5.38+0.7和[Zn] +4.7 [Mg] @14，其中[Mg]表示Mg的质量％，[Zn]表示Zn的质量％，并且包含 Cu中的至少一种元素：0.1-0.6质量％，Ag：0.01-0.15质量％，Ti：0.005-0.05质量％，Mn中至少一种元素：0.1-0.3质量％，Cr：0.05-0.2质量％ ％，Zr：0.05〜0.2质量％。

公开(公告)号：US20120234440A1

公开(公告)日：2012-09-20

申请号：US13419798

申请日：2012-03-14

申请人： Yukimasa MIYATA ,  Shinji Yoshihara ,  Minwoo Kang

发明人： Yukimasa MIYATA ,  Shinji Yoshihara ,  Minwoo Kang

IPC分类号： C22F1/053

CPC分类号： C22F1/053 ,  C21D1/673 ,  C22C21/10

摘要： A casted ingot of a heat treatment type Al—Zn—Mg series aluminum alloy comprising Zn: 4.0-8.0% by mass, Mg: 0.5-2.0% by mass, Cu: 0.05-0.5% by mass, Ti: 0.01-0.1% by mass, and any one or more of Mn: 0.1-0.7% by mass, Cr: 0.1-0.5% by mass and Zr: 0.05-0.3% by mass, and the balance being aluminum and incidental impurities is extruded at a homogenization treatment temperature after a homogenization treatment without cooled, and a resulted extruded material is die quenched at a cooling rate equal to or more than 100° C./min and then subjected to an artificial aging treatment, wherein the homogenization treatment is carried out by heating to the homogenization treatment temperature as 430-500° C. at a heating rate less than 750° C./hr or by heating to the homogenization treatment temperature and held the homogenization treatment temperature for 3 hours.

摘要翻译： 含有Zn：4.0〜8.0质量％，Mg：0.5〜2.0质量％，Cu：0.05〜0.5质量％，Ti：0.01-0.1质量％的热处理型Al-Zn-Mg系铝合金铸造锭， ，Mn：0.1-0.7质量％，Cr：0.1-0.5质量％，Zr：0.05〜0.3质量％中的任一种或以上，余量由铝和附带杂质在均化处理中挤出 未冷却均质处理后的温度，所得到的挤出材料以等于或大于100℃/分钟的冷却速度进行猝熄，然后进行人造时效处理，其中均化处理通过加热至 均质处理温度为430-500℃，加热速率小于750℃/小时或通过加热至均化处理温度并保持均化处理温度3小时。