| 发明名称 | Dispersion, slurry and process for producing a casting mould for precision casting using the slurry | ||
| 摘要 | Slurry which contains a) from (50) to (80)% by weight of refractory particles having an average particle size of from (0.5) m to (150) m, b) from (5) to (35)% by weight of aluminum oxide particles having an average particle diameter of less than (300) nm and c) from (5) to (35)% by weight of water and d) a pH of from (5) to (12). Process for producing the slurry using a dispersion, and also the dispersion itself. Process for producing a casting mold, and also the casting mold itself. | ||
| 申请公布号 | US8778449(B2) | 申请公布日期 | 2014.07.15 |
| 申请号 | US201013266512 | 申请日期 | 2010.03.30 |
| 申请人 | Evonik Degussa GmbH;Center for Abrasives and Refractories Research & Development C.A.R.R.D. GmbH | 发明人 | Tontrup Christoph;Lortz Wolfgang;Perlet Gabriele;Schmidt-Kluge Erich;Frulli Danilo |
| 分类号 | B22C1/00;B22C1/08;B22C1/18;B22C9/00;B22C9/02;B22C9/04;B05D1/18;B05D3/00;B05D3/12;C08K3/22;C01F7/02 | 主分类号 | B22C1/00 |
| 代理机构 | Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A slurry, comprising: a) from 50 to 80% by weight of refractory particles having an average particle size of from 0.5 μm to 150 μm, b) from 5 to 35% by weight of aluminum oxide particles having an average particle diameter of less than 300 nm, and c) from 5 to 35% by weight of water, wherein the slurry has a pH of from 5 to 12. | ||
| 地址 | Essen DE | ||