发明名称 |
Method for removing volatile components from a gel-cast ceramic article |
摘要 |
A method of removing substantially all of the volatile component in a green, volatile-containing ceramic article is disclosed. The method comprises freezing the ceramic article; and then subjecting the frozen article to a vacuum for a sufficient time to freeze-dry the article. Frequently, the article is heated while being freeze-dried. Use of this method efficiently reduces the propensity for any warpage of the article. The article is often formed from a ceramic slurry in a gel-casting process. A method for fabricating a ceramic core used in investment casting is also described.
|
申请公布号 |
US6787074(B2) |
申请公布日期 |
2004.09.07 |
申请号 |
US20020068158 |
申请日期 |
2002.02.05 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
KLUG FREDERIC JOSEPH;DECARR SYLVIA MARIE |
分类号 |
F01D25/00;B22C1/00;B22C1/22;B22C9/10;B22C9/12;B22F3/02;B22F3/10;B22F3/20;B22F3/22;B28B1/00;C04B35/111;C04B35/622;C04B35/638;C22C1/05;(IPC1-7):B29C35/16 |
主分类号 |
F01D25/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|