| 发明名称 | Rough dense ceramic sealing surface in turbomachines | ||
| 摘要 | An abrasive coating is formed on a rotor shaft that rotates with respect to cantilevered vanes. The coating is formed by thermal spray techniques and comprises a ceramic layer on a metal bond coat. The coating surface is roughened by crush grinding or by grit blasting to increase the abradability of the surface. | ||
| 申请公布号 | US8770926(B2) | 申请公布日期 | 2014.07.08 |
| 申请号 | US201012910973 | 申请日期 | 2010.10.25 |
| 申请人 | United Technologies Corporation | 发明人 | Guo Changsheng;Strock Christopher W.;Stowe Thomas W.;Baumann Paul W. |
| 分类号 | F01D5/20;F01D11/08;F04D29/18 | 主分类号 | F01D5/20 |
| 代理机构 | Kinney & Lange, P.A. | 代理人 | Kinney & Lange, P.A. |
| 主权项 | 1. A method of conditioning a dense ceramic coating to form an abrasive seal comprising: forming a part with a surface; depositing a bond coat on the surface; depositing a ceramic coating on the bond coat; grinding the ceramic surface to a surface finish of 20 to 30 microinches (0.51 microns to 0.76 microns); and roughening the ceramic surface to a roughness from about 100 Ra in microinches to about 300 Ra (2540 Ra to 7620 Ra in microns) to form an abrasive seal. | ||
| 地址 | Hartford CT US | ||