发明申请
- 专利标题： Mold for casting and method for manufacture thereof
- 专利标题（中）： 铸造用模具及其制造方法
-
申请号： US10532692申请日： 2003-10-28
-
公开(公告)号： US20060151139A1公开(公告)日： 2006-07-13
- 发明人: Hiroaki Koyama , Toshihiro Miyauchi , Yasuhiro Shimamura , Michiharu Hasegawa , Naoji Yamamoto , Masahito Hasuike , Noriyuki Miyazaki , Hiroaki Tohyama
- 申请人： Hiroaki Koyama , Toshihiro Miyauchi , Yasuhiro Shimamura , Michiharu Hasegawa , Naoji Yamamoto , Masahito Hasuike , Noriyuki Miyazaki , Hiroaki Tohyama
- 优先权： JP2002-316266 20021030
- 国际申请： PCT/JP03/13758 WO 20031028
- 主分类号： B22D17/22
- IPC分类号： B22D17/22 ; B28B7/34
摘要：
A mold for casting primarily of SMC420, wherein a cavity forming portion comprising maraging steel, which has the toughness and the resistance to heat shock superior to those of SMC420, is provided in a vertical wall heading for a cavity surface from a molten metal inlet and a portion nearest to the molten metal inlet in the cavity surface, which are portions suffering relatively large heat shock in the contact with a molten metal. Also provided is a method for providing the cavity forming portion, which comprises filling a concave portion of the mold with a molten metal prepared by melting a welding rod by arc welding, in other words, carrying our an overlaying welding, and then cooling and solidifying the molten metal.
公开/授权文献
- US07497243B2 Mold for casting and method for manufacture thereof 公开/授权日：2009-03-03