发明名称 |
Casting sand cores and expansion control methods therefor |
摘要 |
Thermal expansion of sand cores and the formation of vein defects during metal casting operations can be substantially eliminated, with substantially reduced costs, by using an anti-veining material comprising less than about 4% by weight of a lithia-containing material, and at least about 1% by weight of ferric oxide (Fe2O3), said anti-veining material preferably comprising about 1% to about 3.5% by weight of a lithia-containing material and about 1% by weight of ferric oxide.
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申请公布号 |
US2002165292(A1) |
申请公布日期 |
2002.11.07 |
申请号 |
US20010847182 |
申请日期 |
2001.05.01 |
申请人 |
BAKER STEPHEN G.;WERLING JOSHUA M. |
发明人 |
BAKER STEPHEN G.;WERLING JOSHUA M. |
分类号 |
B22C1/02;B22C1/08;(IPC1-7):B22C1/00 |
主分类号 |
B22C1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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