发明名称 |
CATALYSTS COMPRISING METHANE SULFONIC ACID FOR THE ACID HARDENING METHOD |
摘要 |
A method for producing cores and molds for the foundry industry utilizing a flowable fire-resistant primary molding material. The method includes an acid applied to the flowable fire resistant primary molding material to obtain an acid-coated fire-resistant primary molding material. A binder that can be cured by acid is applied to the acid-coated fire resistant primary molding material to obtain a fire-resistant primary molding material coated with a binder. The fire-resistant primary molding material coated with a binder is then molded into a molded body, and-the molded body is cured. The acid used is a mixture of methane sulfonic acid and at least one sulfur-free acid. The casting molds can be produced having reduced emission of harmful compounds during casting. |
申请公布号 |
KR20110010795(A) |
申请公布日期 |
2011.02.07 |
申请号 |
KR20107028541 |
申请日期 |
2009.05.22 |
申请人 |
ASHLAND-SUEDCHEMIE-KERNFEST GMBH |
发明人 |
FROHN MARCUS;KOCH DIETHER;GIENIEC ANTONI |
分类号 |
B22C1/10;B22C1/22 |
主分类号 |
B22C1/10 |
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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