发明名称 |
MANUFACTURE OF COMPOSITE-METAL TURBINE WHEEL |
摘要 |
<p>COMPOSITE TURBINE WHEEL AND PROCESS FOR MAKING SAME A process for making a composite integral turbine wheel and the like, consisting of a plurality of blade elements of an airfoil shape connected at their inner ends to the periphery of a sintered rotor or hub and metallurgically bonded thereto. In accordance with the practice of the process, a plurality of identical blade elements in a final machined condition are inserted in a mold at accurate circumferentially-spaced intervals therearound and are disposed such that the inner root sections thereof extend inwardly of a mold cavity defining the rotor profile. The mold cavity is filled with metal powder composed of a high-strength, temperatureresistant alloy, and sintered into a coherent mass in a manner to effect a metallurgical bonding of the sintered rotor section to the individual blade elements. The resultant integral assembly is thereafter isostatically pressed at an elevated temperature for a period of time to effect a further densification of the sintered rotor section to a density approaching 100% theoretical density.</p> |
申请公布号 |
CA1045798(A) |
申请公布日期 |
1979.01.09 |
申请号 |
CA19760255705 |
申请日期 |
1976.06.25 |
申请人 |
SPECIAL METALS CORPORATION |
发明人 |
WEAVER, DON M.;REICHMAN, STEVEN H. |
分类号 |
F01D5/12;B22F3/14;B22F3/24;B22F5/04;B22F7/08;B23P15/00;B30B11/00;F01D5/00;F01D5/34;(IPC1-7):22F3/12 |
主分类号 |
F01D5/12 |
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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