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公开(公告)号：US08814968B2
公开(公告)日：2014-08-26
申请号：US13005869
申请日：2011-01-13
申请人： Alan Honggen Jiang , Harold Sreshta
发明人： Alan Honggen Jiang , Harold Sreshta
IPC分类号： B24D3/00 , B24D11/00 , B24D18/00 , C09K3/14 , B24D3/02 , C09C1/68 , B22C9/02 , C22C26/00 , E21B10/00 , C22C1/10
CPC分类号： E21B10/00 , B22C9/02 , C22C26/00 , C22C2001/1073
摘要： A thermally conductive sand shell molding system allows for controlling heat flow in a molten metal infiltrate powdered metal drill bit molding system to differentially cool the mold system to control differential shrinking and accompanying stress concentrations.
摘要翻译： 导热砂壳模制系统允许控制熔融金属渗透粉末金属钻头成型系统中的热流，以差分地冷却模具系统以控制差异收缩和伴随的应力集中。
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公开(公告)号：US20110171414A1
公开(公告)日：2011-07-14
申请号：US12951193
申请日：2010-11-22
申请人： Harold Sreshta , Alan Honggen Jiang
发明人： Harold Sreshta , Alan Honggen Jiang
CPC分类号： B22F7/06 , B22F3/26 , B22F2005/001 , C22C26/00 , C22C2026/001 , C22C2204/00 , E21B10/00 , E21B10/5673 , E21B10/573 , Y10T428/21 , Y10T428/239 , Y10T428/24355 , Y10T428/24777 , Y10T428/25 , Y10T428/256 , Y10T428/26
摘要： A superhard composite material comprising a polycrystalline diamond cutter (PDC) having a cutting surface and cutting edges having a polycrystalline diamond thickness of about 3 mm is integrally formed with a sacrificial catalyst source that is removed later in the processing of the of the cutter.
摘要翻译： 包括具有切割表面的多晶金刚石切割器（PDC）和具有大约3mm的多晶金刚石厚度的切割刃的超硬复合材料与牺牲催化剂源一体地形成，该牺牲催化剂源在切割器的加工中被移除。
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公开(公告)号：US20110167734A1
公开(公告)日：2011-07-14
申请号：US13005869
申请日：2011-01-13
申请人： Alan Honggen Jiang , Harold Sreshta
发明人： Alan Honggen Jiang , Harold Sreshta
CPC分类号： E21B10/00 , B22C9/02 , C22C26/00 , C22C2001/1073
摘要： A thermally conductive sand shell moulding system allows for controlling heat flow in a molten metal infiltrate powdered metal drill bit moulding system to differentially cool the mould system to control differential shrinking and accompanying stress concentrations.
摘要翻译： 导热砂壳模制系统允许控制熔融金属渗透粉末金属钻头成型系统中的热流，以差分地冷却模具系统以控制差异收缩和伴随的应力集中。
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