公开(公告)号：US09061336B2

公开(公告)日：2015-06-23

申请号：US12523545

申请日：2008-01-18

申请人： Hitoshi Sumiya ,  Makoto Yukawa

发明人： Hitoshi Sumiya ,  Makoto Yukawa

IPC分类号： B21C3/02 ,  B21C3/18 ,  C30B29/60 ,  B01J3/06 ,  B82Y30/00 ,  C04B35/52 ,  C04B35/645

CPC分类号： B21C3/025 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0625 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0685 ,  B21C3/18 ,  B82Y30/00 ,  C04B35/52 ,  C04B35/645 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/656 ,  C04B2235/781 ,  C04B2235/783 ,  C04B2235/785 ,  C30B29/605

摘要： One object of the present invention is to provide a wire drawing die excellent in strength and wear resistance. The wire drawing die has a core formed using 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拉丝模具。 拉丝模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芯，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和超高压烧结金刚石 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，其包括最大粒径小于或等于100nm的细晶粒金刚石晶体和小于或等于50nm的平均粒度 以及最小晶粒尺寸大于或等于50nm并且最大晶粒尺寸小于或等于10000nm的板状或颗粒状粗粒金刚石晶体。

公开(公告)号：US20100043520A1

公开(公告)日：2010-02-25

申请号：US12523545

申请日：2008-01-18

申请人： Hitoshi Sumiya ,  Makoto Yukawa

发明人： Hitoshi Sumiya ,  Makoto Yukawa

IPC分类号： B21C3/02

CPC分类号： B21C3/025 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/0625 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0685 ,  B21C3/18 ,  B82Y30/00 ,  C04B35/52 ,  C04B35/645 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/656 ,  C04B2235/781 ,  C04B2235/783 ,  C04B2235/785 ,  C30B29/605

摘要： One object of the present invention is to provide a wire drawing die excellent in strength and wear resistance. The wire drawing die has a core formed using 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拉丝模具。 拉丝模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芯，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和超高压烧结金刚石 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，包括最大粒度小于或等于100nm的细晶粒金刚石晶体和小于或等于50nm的平均晶粒尺寸 以及最小晶粒尺寸大于或等于50nm并且最大晶粒尺寸小于或等于10000nm的板状或颗粒状粗粒金刚石晶体。