公开(公告)号：US6143097A

公开(公告)日：2000-11-07

申请号：US947414

申请日：1997-10-08

申请人： Makoto Fujita ,  Nobuo Sakate ,  Shoji Hirabara ,  Yukio Yamamoto

发明人： Makoto Fujita ,  Nobuo Sakate ,  Shoji Hirabara ,  Yukio Yamamoto

IPC分类号： B60B3/00 ,  B60B3/06 ,  C22C23/02 ,  C22F1/06 ,  C22L23/00

CPC分类号： B60B3/06 ,  C22C23/02 ,  C22F1/06

摘要： This invention is to provide a magnesium alloy cast material capable of manufacturing a wheel, a large-sized forged piece such as wheel having properties equivalent to those of aluminum molten forged member, directly from the state of continuous cast material. The magnesium alloy cast material is a nearly intermediate alloy composition between conventional AZ61 alloy and AZ80 alloy, comprising Al: 6.2 to 7.6 wt. %, Mn: 0.15 to 0.4 wt. %, Zn: 0.4 to 0.8 wt. % and Mg: balance, and casting by defining the mean crystal grain size under 200 .mu.m. The forgeability is excellent, and when forged, a forged piece superior in mechanical properties and corrosion resistance to the aluminum molten forged member can be manufactured.

摘要翻译： 本发明是提供一种镁合金铸造材料，其能够直接从连续铸造材料的状态直接制造具有与铝熔融锻造件的性能相当的性能的车轮等大型锻造件。 镁合金铸造材料是常规AZ61合金和AZ80合金之间的几乎中等的合金组成，其包含Al：6.2〜7.6重量％ ％，Mn：0.15〜0.4重量％ ％，Zn：0.4〜0.8wt。 ％和Mg：平衡，并通过定义平均晶粒尺寸在200μm以下铸造。 锻造性优异，锻造时，可以制造出对铝熔融锻造件的机械性能和耐腐蚀性优异的锻造件。