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公开(公告)号:EP2127789A1
公开(公告)日:2009-12-02
申请号:EP08703423.7
申请日:2008-01-18
发明人: SUMIYA, Hitoshi , OBATA, Kazushi , YOSHINAGA, Miki
CPC分类号: B01J3/062 , B01J2203/061 , B01J2203/062 , B01J2203/0655 , B01J2203/068 , B01J2203/0685 , B23B27/20 , B23B2226/315 , B82Y30/00 , C01B32/25 , C01P2002/60 , C04B35/52 , C04B35/645 , C04B2235/422 , C04B2235/425 , C04B2235/427 , C04B2235/5288 , C04B2235/5292 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/656 , C04B2235/781 , C04B2235/783 , C04B2235/785 , C04B2235/96 , C04B2235/963
摘要: One object of the present invention is to provide a cutting tool excellent in strength and wear resistance. The cutting tool has a cutting blade formed using a highly hard diamond polycrystalline body made substantially only of diamond and produced by directly converting a raw material composition including a non-diamond type carbon material into diamond and sintering the diamond at an ultra high pressure and an ultra high temperature without adding a sintering aid or a catalyst, the polycrystalline body having a mixed construction including fine-grained diamond crystals with a maximum grain size of less than or equal to 100 nm and an average grain size of less than or equal to 50 nm and plate-like or particulate coarse-grained diamond crystals with a minimum grain size of greater than or equal to 50 nm and a maximum grain size of less than or equal to 10000 nm.
摘要翻译: 本发明的一个目的是提供一种强度和耐磨性优异的切削工具。 切割工具具有使用基本上仅由金刚石制成的高硬度金刚石多晶体形成的切割刀片,其通过将包含非金刚石型碳材料的原料组合物直接转化为金刚石并以超高压烧结金刚石, 超高温而不添加烧结助剂或催化剂,所述多晶体具有混合结构,所述混合结构包括最大粒度小于或等于100nm的细晶粒金刚石晶体和平均晶粒尺寸小于或等于50 nm和具有大于或等于50nm的最小晶粒尺寸和小于或等于10000nm的最大晶粒尺寸的板状或颗粒状粗粒金刚石晶体。
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公开(公告)号:EP2127789B1
公开(公告)日:2013-04-03
申请号:EP08703423.7
申请日:2008-01-18
发明人: SUMIYA, Hitoshi , OBATA, Kazushi , YOSHINAGA, Miki
CPC分类号: B01J3/062 , B01J2203/061 , B01J2203/062 , B01J2203/0655 , B01J2203/068 , B01J2203/0685 , B23B27/20 , B23B2226/315 , B82Y30/00 , C01B32/25 , C01P2002/60 , C04B35/52 , C04B35/645 , C04B2235/422 , C04B2235/425 , C04B2235/427 , C04B2235/5288 , C04B2235/5292 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/656 , C04B2235/781 , C04B2235/783 , C04B2235/785 , C04B2235/96 , C04B2235/963
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