发明名称 |
METHOD FOR PRODUCING A PCD COMPACT |
摘要 |
A method of producing a composite diamond compact comprising a polycrystalline diamond (PCD) compact bonded to a cemented carbide substrate is provided. The method includes the steps of: providing a PCD table, preferably a PCD table with diamond-to-diamond bonding and a porous microstructure in which the pores are empty of second phase material bringing together the PCD table and a cemented carbide substrate in the presence of a bonding agent to form an unbonded assembly; subjecting the unbonded assembly to an initial compaction at a pressure of at least 4.5 GPa and a temperature below the melting point of the bonding agent for a period of at least 150 seconds; and thereafter subjecting the unbonded assembly to a temperature above the melting point of the bonding agent and a pressure of at least 4.5 GPa for a time sufficient for the bonding agent to become molten and bond the PCD table to the substrate to form a composite diamond compact.
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申请公布号 |
CA2711429(A1) |
申请公布日期 |
2009.12.10 |
申请号 |
CA20092711429 |
申请日期 |
2009.06.03 |
申请人 |
ELEMENT SIX (PRODUCTION) (PTY) LTD |
发明人 |
SITHEBE, HUMPHREY SAMKELO LUNGISANI |
分类号 |
B01J3/06;B22F7/06 |
主分类号 |
B01J3/06 |
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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