公开(公告)号：US09725826B2

公开(公告)日：2017-08-08

申请号：US14241855

申请日：2012-08-30

Applicant: Kazuhiro Ikeda ,  Hitoshi Sumiya

Inventor： Kazuhiro Ikeda ,  Hitoshi Sumiya

IPC: C30B29/04 ,  C30B25/00 ,  B01J3/06 ,  C30B7/10

CPC classification number: C30B29/04 ,  B01J3/062 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/068 ,  C30B7/10 ,  C30B25/00

Abstract: Single-crystal diamond is composed of carbon in which a concentration of a carbon isotope 12C is not lower than 99.9 mass % and a plurality of inevitable impurities other than carbon. The inevitable impurities include nitrogen, boron, hydrogen, and nickel, and a total content of nitrogen, boron, and hydrogen of the plurality of inevitable impurities is not higher than 0.01 mass %. In order to manufacture single-crystal diamond, initially, a hydrocarbon gas in which a concentration of the carbon isotope 12C is not lower than 99.9 mass % is subjected to denitrification.

公开(公告)号：US20140026492A1

公开(公告)日：2014-01-30

申请号：US14111289

申请日：2012-04-10

Applicant: Natsuo Tatsumi ,  Katsuko Yamamoto ,  Hitoshi Sumiya

Inventor： Natsuo Tatsumi ,  Katsuko Yamamoto ,  Hitoshi Sumiya

IPC: B23B27/20

CPC classification number: B23B27/20 ,  B23B27/141 ,  B23B2226/125 ,  B82Y30/00 ,  C04B35/52 ,  C04B35/5831 ,  C04B35/645 ,  C04B2235/421 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/6567 ,  C04B2235/666 ,  C04B2235/781 ,  C04B2235/782 ,  C04B2235/785 ,  C04B2235/81 ,  C04B2235/87 ,  Y10T407/26 ,  Y10T407/27

Abstract: The present invention provides a cutting tool that achieves cutting with high precision. The cutting tool of the present invention includes a cutting edge composed of a polycrystalline body including high-pressure-phase hard grains that contain one or more elements selected from the group consisting of boron, carbon, and nitrogen, the polycrystalline body being formed by subjecting a non-diamond carbon material and/or boron nitride, serving as a starting material, to direct conversion sintering under ultra-high pressure and high temperature without adding a sintering aid or a catalyst, in which letting the radius of curvature of the nose of the cutting edge of the cutting tool be R1, the sintered grains constituting the polycrystalline body have an average grain size of 1.2×R1 or less and a maximum grain size of 2×R1 or less.

Abstract translation: 本发明提供一种以高精度实现切割的切削工具。 本发明的切削工具包括由包含高压相硬质粒子的多晶体构成的切削刃，所述高压相硬质粒子含有选自硼，碳和氮的一种以上的元素，所述多晶体通过 作为起始原料的非金刚石碳材料和/或氮化硼，在超高压和高温下直接转化烧结，而不添加烧结助剂或催化剂，其中使得鼻子的曲率半径 切削刀具的切削刃为R1，构成多晶体的烧结晶粒的平均粒径为1.2×R1以下，最大粒径为2×R1以下。

公开(公告)号：US08226922B2

公开(公告)日：2012-07-24

申请号：US10582330

申请日：2004-12-03

Applicant: Hitoshi Sumiya

Inventor： Hitoshi Sumiya

IPC: C01B35/00 ,  B01J3/06

CPC classification number: B01J3/062 ,  B01J2203/0655 ,  B82Y30/00 ,  C01B32/25 ,  C04B35/52 ,  C04B35/6261 ,  C04B35/645 ,  C04B2235/421 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/656 ,  C04B2235/72 ,  C04B2235/781 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/96

Abstract: A diamond sintered body conventionally used in a cutting tool or the like includes an iron group metal element as a sintering aid, and therefore has a problem in heat resistance. A diamond sintered body not including the iron group metal, on the other hand, does not have sufficient mechanical strength to be used as a tool material, and also does not have conductivity, which makes electrical discharge machining impossible, and thus processing thereof is difficult. A diamond polycrystalline body having high heat resistance and mechanical strength and having conductivity enabling electrical discharge machining is obtained by using only an amorphous or fine graphite-type carbon material as a starting material, adding boron thereto and concurrently performing conversion into diamond and sintering in an ultra-high pressure and temperature condition.

Abstract translation: 通常用于切削工具等的金刚石烧结体包括作为烧结助剂的铁族金属元素，因此具有耐热性问题。 另一方面，不包含铁族金属的金刚石烧结体不具有足够的机械强度用作工具材料，也不具有导电性，这使得不能进行放电加工，因此其处理困难 。 通过仅使用无定形或细石墨型碳材料作为起始材料，可以获得具有高耐热性和机械强度并且具有导电性的金刚石多晶体，其中加入硼并同时进行金刚石的转化和烧结 超高压和温度条件。

公开(公告)号：US6071841A

公开(公告)日：2000-06-06

申请号：US979988

申请日：1997-11-26

Applicant: Hitoshi Sumiya

Inventor： Hitoshi Sumiya

IPC: C04B35/583 ,  C04B35/5831 ,  C01B21/064 ,  C04B35/58

CPC classification number: C04B35/5831 ,  C01B21/0645 ,  C04B35/645 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/62 ,  C04B2235/3895 ,  C04B2235/5454 ,  C04B2235/549 ,  C04B2235/785 ,  C04B2235/87 ,  C04B2235/96 ,  C04B2235/9607

Abstract: A cubic boron nitride sintered body has sufficient strength, hardness, heat resistance and heat dissipativity for serving as a cutting tool. A method of preparing a cubic boron nitride sintered body involves preparing a low-pressure phase boron nitride as a starting material by reducing a compound containing boron and oxygen with a compound containing nitrogen and carbon. Then, the low-pressure phase boron nitride starting material is directly converted to a cubic boron nitride sintered body by subjecting the starting material to a high temperature and a high pressure. In the obtained cubic boron nitride sintered body, the ratio I.sub.220 /I.sub.111 of X-ray diffraction intensity I.sub.220 on the (220) plane relative to X-ray diffraction intensity I.sub.111 on the (111) plane is at least 0.1.

Abstract translation: 立方氮化硼烧结体作为切削工具具有足够的强度，硬度，耐热性和散热性。 制备立方氮化硼烧结体的方法包括通过用含有氮和碳的化合物还原含有硼和氧的化合物来制备低压相氮化硼作为原料。 然后，通过使原料经受高温高压，将低压相氮化硼原料直接转化为立方氮化硼烧结体。 在获得的立方氮化硼烧结体中，（220）面上的X射线衍射强度I220相对于（111）面上的X射线衍射强度I111的比I220 / I111为0.1以上。

公开(公告)号：US5340780A

公开(公告)日：1994-08-23

申请号：US827579

申请日：1992-01-28

Applicant: Hitoshi Sumiya

Inventor： Hitoshi Sumiya

IPC: C04B35/583 ,  B01J3/06 ,  C04B35/5831 ,  C04B35/58

CPC classification number: C04B35/5831

Abstract: A cubic boron nitride sintered compact is produced by adding to atmospheric pressure type boron nitride, a cubic boron nitride synthetic catalyst and 0.01 to 5.0 percent by weight of a hydroxide of an alkaline earth metal to form a mixture. Then, the mixture is subjected to a high temperature/high pressure treatment under a thermodynamically stable pressure condition for cubic boron nitride, whereby the atmospheric pressure type boron nitride is converted to cubic boron nitride under the action of the cubic boron nitride synthetic catalyst. The cubic boron nitride sintered compact thus obtained contains 0.01 to 5.0 percent by weight of an oxide of the alkaline earth metal only in triple points between the cubic boron nitride grains. The cubic boron nitride grains are densely bonded with each other.

Abstract translation: 通过向常压型氮化硼，立方氮化硼合成催化剂和0.01〜5.0重量％的碱土金属氢氧化物中加入以形成混合物来制备立方氮化硼烧结体。 然后，在立方氮化硼的热力学稳定压力条件下对混合物进行高温高压处理，由此在立方氮化硼合成催化剂的作用下将大气压氮化硼转化为立方氮化硼。 由此获得的立方氮化硼烧结体仅在立方氮化硼颗粒之间的三点中含有0.01至5.0重量％的碱土金属氧化物。 立方氮化硼颗粒彼此密集地结合。

公开(公告)号：US4845824A

公开(公告)日：1989-07-11

申请号：US161096

申请日：1988-02-26

Applicant: Fujio Ishikawa ,  Hitoshi Sumiya ,  Motonobu Oyabu ,  Hideyuki Fukuda

Inventor： Fujio Ishikawa ,  Hitoshi Sumiya ,  Motonobu Oyabu ,  Hideyuki Fukuda

IPC: B21F33/02

CPC classification number: B21F33/025 ,  Y10T29/53787

Abstract: A clip-clinching device for a coil-spring unit includes an arch having a pair of laterally spaced upstanding poles and a horizontal bar connecting upper end portions of the poles. First and second carriers are positioned on the horizontal bar and are movable therealong. First and second members are respectively provided on the first and second carriers and are movable in the vertical direction. First and second clip-clinching tools having projecting tongues at which a jaw is defined are respectively mounted to the first and second members. A base member positioned under the horizontal bar supports a movable coil-spring unit transfer device for movement along a line perpendicular to the horizontal bar.

Abstract translation: 用于螺旋弹簧单元的夹紧装置包括具有一对横向间隔的直立杆的拱形件和连接杆的上端部分的水平杆。 第一和第二托架位于水平杆上并且可沿其移动。 第一和第二构件分别设置在第一和第二托架上并且可在垂直方向上移动。 具有突出舌片的第一和第二夹紧工具分别安装在第一和第二构件上，钳口被限定在其上。 定位在水平杆下方的底座部件支承用于沿垂直于水平杆的线移动的可动螺旋弹簧单元传送装置。

公开(公告)号：US20150000207A1

公开(公告)日：2015-01-01

申请号：US14241362

申请日：2012-08-24

Applicant: Yuh Ishida ,  Hitoshi Sumiya

Inventor： Yuh Ishida ,  Hitoshi Sumiya

IPC: C09K3/14

CPC classification number: C09K3/1418 ,  C04B35/5831 ,  C04B35/6455 ,  C04B2235/5292 ,  C04B2235/72 ,  C04B2235/767 ,  C04B2235/781 ,  C04B2235/788 ,  C04B2235/96

Abstract: A cubic boron nitride complex polycrystal contains granular cubic boron nitride and tabular cubic boron nitride. The average grain size of the granular cubic boron nitride is 500 nm or less. The maximum value of a short side of the tabular cubic boron nitride is 10 nm or more to 10000 nm or less. Thereby, it is possible to provide a cubic boron nitride complex polycrystal having high hardness and a manufacturing method therefor, a cutting tool, a wire-drawing die and a grinding tool including the same.

Abstract translation: 立方氮化硼复合多晶体包含立方氮化硼颗粒和片状立方氮化硼。 粒状立方氮化硼的平均粒径为500nm以下。 片状立方氮化硼的短边的最大值为10nm以上至10000nm以下。 由此，可以提供具有高硬度的立方氮化硼复合体多晶体及其制造方法，切削工具，拉丝模具和包括该方法的研磨工具。

公开(公告)号：US08784767B2

公开(公告)日：2014-07-22

申请号：US13517921

申请日：2011-08-10

Applicant: Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

Inventor： Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

IPC: B01J3/06 ,  B26D3/08 ,  B31B1/25 ,  B26D11/00 ,  B24B21/18 ,  B23F21/03 ,  B21C3/00 ,  B23H7/00 ,  A62C31/02 ,  B32B7/02 ,  G11B5/64

CPC classification number: B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0685 ,  B23B2226/315 ,  B23C2226/315 ,  B24B53/12 ,  B24D3/00 ,  C01B32/25 ,  Y10T83/0215 ,  Y10T83/0333 ,  Y10T83/0385 ,  Y10T83/929 ,  Y10T83/9372 ,  Y10T428/24975 ,  Y10T428/265

Abstract: Polycrystalline diamond includes cubic diamond and hexagonal diamond, and a ratio of X-ray diffraction peak intensity of a (100) plane of the hexagonal diamond to X-ray diffraction peak intensity for a (111) plane of cubic diamond is not lower than 0.01%. In addition, a present method of manufacturing polycrystalline diamond includes the steps of preparing a non-diamond carbon material having a degree of graphitization not higher than 0.58 and directly converting the non-diamond carbon material to cubic diamond and hexagonal diamond and sintering the non-diamond carbon material, without adding any of a sintering agent and a binder, under pressure and temperature conditions at which diamond is thermodynamically stable.

Abstract translation: 多晶金刚石包括立方金刚石和六角形金刚石，并且六方晶系的（100）面的X射线衍射峰强度与立方晶体的（111）面的X射线衍射峰强度的比率不低于0.01 ％。 另外，制造多晶金刚石的现有方法包括以下步骤：制备石墨化程度不高于0.58的非金刚石碳材料，并将非金刚石碳材料直接转化成立方金刚石和六角形金刚石， 金刚石碳材料，在金刚石在热力学稳定的压力和温度条件下，不添加任何烧结剂和粘合剂。

公开(公告)号：US20120258035A1

公开(公告)日：2012-10-11

申请号：US13517921

申请日：2011-08-10

Applicant: Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

Inventor： Hitoshi Sumiya ,  Katsuko Yamamoto ,  Takeshi Sato ,  Keiko Arimoto

IPC: C01B31/00 ,  B26D3/08 ,  B24B53/12 ,  B05B1/00 ,  B24D3/00 ,  B26D7/00 ,  B26D1/00 ,  B23H11/00 ,  C01B31/06 ,  B21C3/02

CPC classification number: B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068 ,  B01J2203/0685 ,  B23B2226/315 ,  B23C2226/315 ,  B24B53/12 ,  B24D3/00 ,  C01B32/25 ,  Y10T83/0215 ,  Y10T83/0333 ,  Y10T83/0385 ,  Y10T83/929 ,  Y10T83/9372 ,  Y10T428/24975 ,  Y10T428/265

Abstract: Polycrystalline diamond includes cubic diamond and hexagonal diamond, and a ratio of X-ray diffraction peak intensity of a (100) plane of the hexagonal diamond to X-ray diffraction peak intensity for a (111) plane of cubic diamond is not lower than 0.01%. In addition, a present method of manufacturing polycrystalline diamond includes the steps of preparing a non-diamond carbon material having a degree of graphitization not higher than 0.58 and directly converting the non-diamond carbon material to cubic diamond and hexagonal diamond and sintering the non-diamond carbon material, without adding any of a sintering agent and a binder, under pressure and temperature conditions at which diamond is thermodynamically stable.

Abstract translation: 多晶金刚石包括立方金刚石和六角形金刚石，并且六方晶系的（100）面的X射线衍射峰强度与立方晶体的（111）面的X射线衍射峰强度的比率不低于0.01 ％。 另外，制造多晶金刚石的现有方法包括以下步骤：制备石墨化程度不高于0.58的非金刚石碳材料，并将非金刚石碳材料直接转化成立方金刚石和六角形金刚石， 金刚石碳材料，在金刚石在热力学稳定的压力和温度条件下，不添加任何烧结剂和粘合剂。

公开(公告)号：US20080022806A1

公开(公告)日：2008-01-31

申请号：US10582330

申请日：2004-12-03

Applicant: Hitoshi Sumiya

Inventor： Hitoshi Sumiya

IPC: B01J3/06

CPC classification number: B01J3/062 ,  B01J2203/0655 ,  B82Y30/00 ,  C01B32/25 ,  C04B35/52 ,  C04B35/6261 ,  C04B35/645 ,  C04B2235/421 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/427 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/656 ,  C04B2235/72 ,  C04B2235/781 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/96

Abstract: A diamond sintered body conventionally used in a cutting tool or the like includes an iron group metal element as a sintering aid, and therefore has a problem in heat resistance. A diamond sintered body not including the iron group metal, on the other hand, does not have sufficient mechanical strength to be used as a tool material, and also does not have conductivity, which makes electrical discharge machining impossible, and thus processing thereof is difficult. A diamond polycrystalline body having high heat resistance and mechanical strength and having conductivity enabling electrical discharge machining is obtained by using only an amorphous or fine graphite-type carbon material as a starting material, adding boron thereto and concurrently performing conversion into diamond and sintering in an ultra-high pressure and temperature condition.

Abstract translation: 通常用于切削工具等的金刚石烧结体包括作为烧结助剂的铁族金属元素，因此具有耐热性问题。 另一方面，不包含铁族金属的金刚石烧结体不具有足够的机械强度用作工具材料，也不具有导电性，这使得不能进行放电加工，因此其处理困难 。 通过仅使用无定形或细石墨型碳材料作为起始材料，可以获得具有高耐热性和机械强度并且具有导电性的金刚石多晶体，其中加入硼并同时进行金刚石的转化和烧结 超高压和温度条件。