发明名称 |
Casting compositions for manufacturing metal casting and methods of manufacturing thereof |
摘要 |
<p>Disclosed herein is a method comprising disposing a casting composition within a sacrificial die; wherein internal features of the sacrificial die provide a replica of a desired casting; wherein the casting composition has a viscosity of about 1 to about 1,000 Pascal-seconds at room temperature when tested at a shear rate of up to 70 seconds -1 ; reacting the casting composition to form a gel matrix; removing the sacrificial die; extracting a solvent from the gel matrix to form a dried gel; and firing the dried gel to form a ceramic core. Disclosed herein too is a casting composition comprising a monomer and/or a polymer; and a metal and/or ceramic powder; wherein the casting composition has a viscosity of about 1 to about 1,000 Pascal-seconds at room temperature when tested at a shear rate of up to 70 seconds and a flow index of less than 0.6.</p> |
申请公布号 |
EP1930095(A2) |
申请公布日期 |
2008.06.11 |
申请号 |
EP20070121580 |
申请日期 |
2007.11.27 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
WANG, HSIN-PANG;LEMAN, JOHN THOMAS;MCNULTY, THOMAS FRANCIS;LEE, CHING-PANG |
分类号 |
B22C1/18 |
主分类号 |
B22C1/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|