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    Surface-modified minute diamond abrasive
    13.
    发明专利
    Surface-modified minute diamond abrasive 有权
    表面修饰的MINUTE DIAMOND磨砂

    公开(公告)号：JP2005054025A

    公开(公告)日：2005-03-03

    申请号：JP2003285106

    申请日：2003-08-01

    Applicant: Ishizuka Kenkyusho:Kk ,  株式会社石塚研究所

    Inventor： ISHIZUKA HIROSHI

    IPC: B24D3/00 ,  C01B31/06 ,  C09K3/14

    Abstract: PROBLEM TO BE SOLVED: To obtain a particle abrasive of minute single crystal diamond that has mechanical strengths characteristic of diamond, a particle surface coated with non-diamond carbon formed by conversion from diamond and ≤5 μm average particle diameter.
    SOLUTION: The surface-modified minute diamond abrasive comprises bringing diamond particles formed by static ultra-high pressure synthesis and having ≤5 μm average particle diameter (D50 value) into close contact with an iron group metal or an iron group metal oxide, heating and keeping the diamond particles in a nonoxidizing atmosphere at

    Abstract translation: 要解决的问题：为了获得具有金刚石机械强度特征的微小单晶金刚石的颗粒磨料，涂覆有由金刚石和≤5μm平均粒径转化形成的非金刚石碳的颗粒表面。 解决方案：表面改性的微小金刚石研磨剂包括通过静态超高压合成形成的具有≤5μm平均粒径（D50值）的金刚石颗粒与铁族金属或铁族金属氧化物紧密接触 在<1000℃处理温度下加热并保持金刚石颗粒在非氧化气氛中，以将金刚石颗粒的表面部分地转化为非金刚石碳。 版权所有（C）2005，JPO＆NCIPI

    Diamond - the method of producing a silicon carbide composite sintered body
    14.
    发明专利
    Diamond - the method of producing a silicon carbide composite sintered body 有权

    公开(公告)号：JP3946896B2

    公开(公告)日：2007-07-18

    申请号：JP4524599

    申请日：1999-01-16

    Applicant: 昭一 久米 ,  株式会社石塚研究所

    Inventor： 勝 下埜 ,  昭一 久米

    IPC: C04B35/52 ,  C04B35/573 ,  C04B35/645 ,  C04B35/80

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a composite sintered body substantially comprising only diamond particles and silicon carbide(SiC) and having high strength, especially high bending strength. SOLUTION: The composite sintered body is effectively produced by the following process. Two-component mixed powder substantially consisting of diamond powder and silicon carbide powder is charged into a high purity SiC crucible, and the two-component powder is subjected to puressurizing stage at a temp. of >=1,400 deg.C under an atmosphere free from oxygen in order to convert substantially all amount of silicon contained into silicon carbide and to integrate the diamond with the formed silicon carbide by sintering.

    Sintered super abrasive grain tip material and method of manufacture
    16.
    发明专利
    Sintered super abrasive grain tip material and method of manufacture 审中-公开
    烧结超细磨料材料及其制造方法

    公开(公告)号：JP2003011019A

    公开(公告)日：2003-01-15

    申请号：JP2001201545

    申请日：2001-07-03

    Applicant: Ishizuka Kenkyusho:Kk ,  株式会社石塚研究所

    Inventor： ISHIZUKA HIROSHI

    IPC: B23D61/04 ,  B22F7/00 ,  B23B27/14 ,  C22C29/08

    Abstract: PROBLEM TO BE SOLVED: To provide tip material whose joining strength to tool base material is improved and an effective method of manufacturing it.
    SOLUTION: 1. Sintered super abrasive grain tip material comprises a sintered super abrasive grain layer comprising its super abrasive grains adjacent to each other joined to each other through a metal layer and/or a ceramic layer or directly and a steel material layer containing carbon of 0.90% or less integrated due to sintering. 2. Sintered super abrasive grain tip material is manufactured in such a way that mixture of super abrasive grain particles and metallic and/or ceramic binder, a cemented carbide alloy disk having the same outer diameter as the inner diameter of a cylindrical body made of metal of high melting point, and a disk made of steel containing carbon of 0.90% or less are layered in the cylindrical body in this order and sealed, and then, a sintered super abrasive grain layer is formed by sintering super abrasive grain particles with each other by putting it into a super high pressure and temperature process. At the same time, this sintered super abrasive grain layer, the cemented carbide alloy disk and steel disk are jointed to each other, and a layered structural body made of sintered super abrasive grains, cemented carbide alloy and steel is recovered from the super high pressure and temperature process.
    COPYRIGHT: (C)2003,JPO

    Abstract translation: 要解决的问题：提供与工具基材的接合强度提高的尖端材料和有效的制造方法。 解决方案：1.烧结超级磨料颗粒材料包括烧结的超级磨料颗粒层，其包含通过金属层和/或陶瓷层彼此相邻的彼此相邻的超级磨料颗粒或直接与包含碳的碳材料层 由于烧结而集成度为0.90％以下。 2.烧结超级磨粒材料的制造方法是将超级磨料颗粒与金属和/或陶瓷粘合剂的混合物，硬质合金圆盘与外部圆柱体的内径相同的外径的金属制成 的高熔点，并且在圆筒体中依次层叠有含有0.90％以下的碳钢的钢盘，并密封，然后通过相互烧结超级磨粒颗粒形成烧结的超级磨粒层 将其置于超高压和高温过程中。 同时，烧结的超级磨粒层，硬质合金圆盘和钢盘彼此接合，并且从超高压回收由烧结超级磨粒，硬质合金合金和钢制成的层状结构体 和温度过程。

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