公开(公告)号：US20090047171A1

公开(公告)日：2009-02-19

申请号：US12093009

申请日：2007-03-30

申请人： Masamichi Aono ,  Toshitaka Miyaki ,  Tomoo Yoshida

发明人： Masamichi Aono ,  Toshitaka Miyaki ,  Tomoo Yoshida

IPC分类号： C22C21/02 ,  C22F1/043

CPC分类号： B21C23/002 ,  C22C21/02 ,  C22C21/06 ,  C22F1/00 ,  C22F1/043

摘要： This invention relates to a 6000-series aluminum extruded material containing magnesium (0.3% to 0.7% by mass), silicon (0.7% to 1.5% by mass), copper (0.35% or less by mass), iron (0.35% or less by mass), titanium (0.005% to 0.1% by mass), manganese (0.05% to 0.30% by mass), chrome (0.10% or less by mass), and zirconium (0.10% or less by mass) (provided that at least one transition element selected from the group consisting of manganese, chromium, and zirconium is contained in a total amount representing 0.05% to 0.40% by mass), with the balance comprising aluminum with inevitable impurities, such aluminium extruded material having a predetermined yield strength of 180 MPa or more with an increase of 60 MPa as a result of a thermal history corresponding to paint baking. Such 6000-series aluminium extruded profile is superior in paint-baking hardenability and thus the yield strength thereof can be secured to a level applicable to structural members of automobiles and the like with the use of a thermal history corresponding to paint baking.

摘要翻译： 本发明涉及含有镁（0.3质量％〜0.7质量％），硅（0.7质量％〜1.5质量％），铜（0.35质量％以下），铁（0.35％以下）的6000系铝挤压材料 ，钛（0.005〜0.1质量％），锰（0.05〜0.30质量％），铬（0.10质量％以下）和锆（0.10质量％以下）（条件是在 从由锰，铬和锆组成的组中选出的至少一种过渡元素的含量为0.05〜0.40质量％的总量），余量由铝与不可避免的杂质组成，这种铝挤压材料具有预定的屈服强度 为180MPa以上，由于对应于油漆烘烤的热历史，增加了60MPa。 这种6000系铝挤压型材在油漆烘烤淬透性方面优异，因此可以通过使用对应于油漆烘烤的热历程将其屈服强度确保到适用于汽车等的结构构件的水平。