发明名称 |
Process for manufacturing a part comprising a block of dense material constituted of hard particles and of binder phase having a gradient of properties, and resulting part |
摘要 |
A block of dense material is made up of hard particles, of the same or different nature, dispersed in a binder phase. The material has a solidus temperature Ts above which the binder phase is liquid. There is deposited on at least a portion of the surface of the block of dense material an active coating composed of a material capable of reacting chemically with the dense material when the assembly is heated to beyond a minimum reaction temperature Tr. The block coated with the active coating is subjected to a heat treatment comprising heating, then maintenance for a time tm at a maintenance temperature Tm greater than or equal to the minimum reaction temperature Tr, followed by cooling to ambient temperature. |
申请公布号 |
US8602131(B2) |
申请公布日期 |
2013.12.10 |
申请号 |
US200913121366 |
申请日期 |
2009.10.07 |
申请人 |
COLIN CHRISTOPHE;SORLIER ELODIE;DOURFAYE ALFAZAZI;VAREL INTERNATIONAL, IND., L.P. |
发明人 |
COLIN CHRISTOPHE;SORLIER ELODIE;DOURFAYE ALFAZAZI |
分类号 |
E21B10/46;B22D17/24;B22D19/00;B22F3/00;B22F5/00;B22F7/00;C22C29/02 |
主分类号 |
E21B10/46 |
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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