公开(公告)号：US11007558B2

公开(公告)日：2021-05-18

申请号：US15745849

申请日：2016-07-22

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP. ,  Sumitomo Electric Industries, Ltd. ,  A.L.M.T. Corp.

Inventor： Makoto Yukawa ,  Bunya Suemitsu ,  Takuya Kinoshita ,  Shigetoshi Sumimoto ,  Yutaka Kobayashi ,  Akihiko Ueda ,  Natsuo Tatsumi ,  Yoshiki Nishibayashi ,  Hitoshi Sumiya

IPC: C23C16/27 ,  C30B29/04 ,  C30B25/20 ,  B21C3/02 ,  C30B25/10

Abstract: A diamond die includes a diamond provided with a hole for drawing a wire material, the diamond being a CVD single-crystal diamond, an axis of the hole being inclined relative to a normal direction of a crystal plane of the diamond.

公开(公告)号：US20210008625A1

公开(公告)日：2021-01-14

申请号：US16981440

申请日：2019-03-20

Applicant: A.L.M.T. Corp.

Inventor： Akihiro YOSHIDA ,  Takanori KADOKURA ,  Tomohiro TAKIDA

IPC: B22F3/15

Abstract: A molybdenum material having a diameter of 75 mm or more and a length of 250 mm or more, and having a relative density of 99.5% or more.

公开(公告)号：US10807135B2

公开(公告)日：2020-10-20

申请号：US16473450

申请日：2017-12-08

Applicant: A.L.M.T. Corp.

Inventor： Toshiaki Shindo ,  Takuya Asanuma

IPC: B21C3/02 ,  B21C3/06

Abstract: A shaped diamond die includes a polycrystalline diamond, the polycrystalline diamond having a machining hole, wherein a length D of a side of the machining hole is 100 μm or less, a corner R is 20 μm or less, the shaped diamond die includes a bearing portion, a surface roughness Sa of the bearing portion is 0.05 μm or less, and an average grain size of the polycrystalline diamond is 500 nm or less.

公开(公告)号：US20200238477A1

公开(公告)日：2020-07-30

申请号：US16652532

申请日：2018-09-18

Applicant: A.L.M.T. Corp.

Inventor： Shuichi AMINO ,  Tomohiro ISHIZU

IPC: B24D3/14

Abstract: There is provided a vitrified bond super-abrasive grinding wheel including: a core; and a super-abrasive grain layer provided on the core, wherein the super-abrasive grain layer includes a plurality of super-abrasive grains and a vitrified bond that joins the plurality of super-abrasive grains, and the vitrified bond has a plurality of bond bridges located between the plurality of super-abrasive grains to join the plurality of super-abrasive grains, not less than 80% of the plurality of super-abrasive grains are joined to the super-abrasive grains adjacent thereto by the bond bridges, and not less than 90% of the plurality of bond bridges in a cross section of the super-abrasive grain layer have a thickness equal to or smaller than an average grain size of the super-abrasive grains, and have a length greater than the thickness.

公开(公告)号：US20200230708A1

公开(公告)日：2020-07-23

申请号：US16647536

申请日：2018-09-18

Applicant: A.L.M.T. Corp.

Inventor： Yuma MIYAZAKI ,  Kentaro SHIRO

IPC: B23B27/16

Abstract: An outer peripheral cutting edge located on a rear side in a rotation axis direction of the inclined cutting edge, a rotation diameter of the base metal on the rear side in the rotation axis direction of the outer peripheral cutting edge is smaller than a rotation diameter of the outer peripheral cutting edge, in a cross section perpendicular to a direction in which the inclined cutting edge extends, a cutting edge ridge of the inclined cutting edge has a roundness of a radius less than or equal to 30 μm, and a maximum height difference value of the cutting edge ridge of the inclined cutting edge is less than or equal to 20 μm.

公开(公告)号：US20200156213A1

公开(公告)日：2020-05-21

申请号：US16635329

申请日：2018-12-06

Applicant: Sumitomo Electric Industries, Ltd. ,  A.L.M.T. Corp.

Inventor： Akito ISHII ,  Katsumi OKAMURA ,  Tomokazu NAKAMURA ,  Nobuhide NAKAMURA

IPC: B24D3/34

Abstract: There is provided a super-abrasive grain including: a body composed of cubic boron nitride or diamond; and a ceramic coating film coating at least a portion of a surface of the body.

公开(公告)号：US20190039211A1

公开(公告)日：2019-02-07

申请号：US16076859

申请日：2016-11-28

Applicant: A.L.M.T. Corp.

Inventor： Nobuhide Nakamura

IPC: B24D3/06 ,  B24D18/00

Abstract: A super-abrasive grinding wheel includes a core and a super-abrasive grain layer provided on a surface of the core, the super-abrasive grain layer including diamond abrasive grains and CBN abrasive grains, the diamond abrasive grains and the CBN abrasive grains being fixed to the core in a single layer by a binder.

公开(公告)号：US09884367B2

公开(公告)日：2018-02-06

申请号：US14368976

申请日：2012-12-21

Applicant: A.L.M.T. Corp.

Inventor： Shigekazu Yamazaki ,  Ayuri Tsuji ,  Masahiro Katoh ,  Seiji Nakabayashi ,  Akihiko Ikegaya

IPC: B22F1/00 ,  C22C27/04 ,  C22C1/04 ,  B22F9/04

CPC classification number: B22F1/0003 ,  B22F9/04 ,  B22F2009/041 ,  B22F2301/20 ,  B22F2998/10 ,  C22C1/045 ,  C22C27/04 ,  C22C1/1084 ,  B22F1/0085

Abstract: A Mo—Si—B-based alloy for a heat-resistant alloy that satisfies, more than conventional, physical properties such as proof stress and hardness adapted to an increase in the melting point of 5 a welding object. The Mo—Si—B-based alloy powder is such that the full width at half maximum of (600) of Mo5SiB2 in X-ray diffraction peak data is 0.08 degrees or more and 0.7 degrees or less.

公开(公告)号：US09512504B2

公开(公告)日：2016-12-06

申请号：US14139627

申请日：2013-12-23

Applicant: A.L.M.T. Corp. ,  Sumitomo Electric Hardmetal Corp. ,  Sumitomo Electric Industries, Ltd.

Inventor： Yoshiharu Yamamoto ,  Kazuo Sasaya ,  Takayuki Fudo ,  Akira Nakano ,  Syunsuke Yamanaka ,  Takahisa Iguchi ,  Fumiatsu Sato ,  Akihiko Ikegaya

IPC: C22B34/36 ,  B01J19/28 ,  B01J8/10 ,  C01G41/00 ,  C01G41/02 ,  C22B7/00 ,  C01G23/00 ,  C01G35/00 ,  C01G37/02 ,  C01G53/00 ,  C01G37/14 ,  C01G51/00

CPC classification number: C22B34/36 ,  B01J8/10 ,  B01J19/28 ,  B01J2219/0004 ,  B01J2219/00132 ,  B01J2219/00157 ,  C01G23/005 ,  C01G35/00 ,  C01G37/02 ,  C01G37/14 ,  C01G41/00 ,  C01G41/003 ,  C01G41/02 ,  C01G51/42 ,  C01G53/42 ,  C01P2002/72 ,  C22B7/001 ,  C22B7/006 ,  Y02P10/214 ,  Y02P10/234 ,  Y02W30/54

Abstract: Provided are a method for producing sodium tungstate by supplying an oxidant made of sodium nitrate or sodium nitrite to bring a tungsten containing material and the oxidant into contact with each other in an atmosphere containing oxygen to thereby continuously produce a reaction product; a method for collecting tungsten using the method; and an apparatus for producing sodium tungstate. Also provided are a method for producing a sodium tungstate aqueous solution in which a reductant is introduced into a melt containing the above-described reaction product which is then dissolved in water; and a method for collecting tungsten using the method.

公开(公告)号：US20140373681A1

公开(公告)日：2014-12-25

申请号：US14368976

申请日：2012-12-21

Applicant: A.L.M.T. Corp.

Inventor： Shigekazu Yamazaki ,  Ayuri Tsuji ,  Masahiro Katoh ,  Seiji Nakabayashi ,  Akihiko Ikegaya

IPC: B22F1/00 ,  C22C27/04 ,  B22F9/04

CPC classification number: B22F1/0003 ,  B22F9/04 ,  B22F2009/041 ,  B22F2301/20 ,  B22F2998/10 ,  C22C1/045 ,  C22C27/04 ,  C22C1/1084 ,  B22F1/0085

Abstract: Provided is a Mo—Si—B-based alloy for a heat-resistant alloy that satisfies, more than conventional, physical properties such as proof stress and hardness adapted to an increase in the melting point of a welding object.A Mo—Si—B-based alloy powder of this invention is such that the full width at half maximum of (600) of Mo5SiB2 in X-ray diffraction peak data is 0.08 degrees or more and 0.7 degrees or less.

Abstract translation: 提供了一种用于耐热合金的Mo-Si-B基合金，其比常规的物理性质如证明应力和适合于焊接对象的熔点增加的硬度要满足。 本发明的Mo-Si-B系合金粉末在X射线衍射峰值数据中Mo5SiB2的（600）的半峰全宽为0.08度以上且0.7度以下。