发明名称 |
METHOD TO IMPROVE HUMIDITY RESISTANCE OF PHENOLIC URETHANE FOUNDRY BINDERS |
摘要 |
An embodiment of the present invention provides a method for improving the tensile strength of foundry cores and molds. More particularly, an embodiment of the present invention provides an improved binder for foundry cores and molds that include a fluoride bearing acid in combination with an inorganic silicon compound. Alternately, the improved binder may include a fluoride bearing acid in combination with a boron compound. In a preferred embodiment, a modified part 1 binder component includes a combination of hydrofluoric acid and an inorganic silicon compound.
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申请公布号 |
WO0141954(A1) |
申请公布日期 |
2001.06.14 |
申请号 |
WO2000US08498 |
申请日期 |
2000.03.30 |
申请人 |
BORDEN CHEMICAL, INC. |
发明人 |
LAITAR, ROBERT, A.;TEETER, BRIAN, K.;TSE, KWOK-TUEN;ZARETSKIY, LEONID, S. |
分类号 |
B22C1/18;B22C1/20;B22C1/22;(IPC1-7):B22C1/22 |
主分类号 |
B22C1/18 |
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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