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发明名称
Expendable die casting sand core
摘要
Sand cores containing an acid curable binding agent are used in the production of die castings having undercut regions because of the favorable combination of shakeout properties, resistance to washout, and resistance to surface penetration.
申请公布号
US4413666(A)
申请公布日期
1983.11.08
申请号
US19810290447
申请日期
1981.08.06
申请人
NL INDUSTRIES, INC.
发明人
PAGE, ENNO H.
分类号
B22C1/22;B22C3/00;B22C9/10;B22D17/24;(IPC1-7):B22C3/00
主分类号
B22C1/22
代理机构
代理人
主权项
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