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1. 发明公开

EP2474634A4 SUPER HARD ALLOY AND CUTTING TOOL USING SAME 审中-公开
标题翻译： SUPERHARTE LEGIERUNG UND SCHNEIDEWERKZEUG DAMIT
公开(公告)号：EP2474634A4
公开(公告)日：2016-11-23
申请号：EP10809899
申请日：2010-08-11
申请人： SUMITOMO ELECTRIC INDUSTRIES , SUMITOMO ELEC HARDMETAL CORP , ALMT CORP
发明人： OKUNO TAKUYA , HIROSE KAZUHIRO , MORIGUCHI HIDEKI , IKEGAYA AKIHIKO , SASAYA KAZUO , YAMAMOTO YOSHIHARU
IPC分类号： C22C29/08 , B23B27/14 , C04B35/56 , C22C1/05 , C22C14/00
CPC分类号： C22C29/08 , C22C14/00
摘要： There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 µm and not more than 4 µm. Assuming that the average diameter of the WC grain is represented by x (µm), the cemented carbide has a thermal diffusivity X (cm 2 /sec) satisfying X > 0.055x + 0.238. The cemented carbide can further contain one or more elements selected from Cr, Ta, Nb, Zr, and Ti at not less than 0.05 mass % and not more than 5 mass % in total.
摘要翻译：提供了热扩散率高，耐磨性优异的硬质合金，以及包括由该硬质合金形成的基材的切削工具。硬质合金是WC基硬质合金，其中主要由WC颗粒构成的硬质相主要由Co组成的粘合剂相结合，并用于切削工具。粘结相基本上由Co或Co和Ni构成。 Co和Ni的总含量不小于4.5质量％且不大于15质量％。在这种硬质合金中，WC颗粒的平均直径不小于0.4μm且不大于4μm。假设WC颗粒的平均直径由x（μm）表示，硬质合金具有满足X> 0.055×+ 0.238的热扩散系数X（cm 2 / sec）。硬质合金还可以含有选自Cr，Ta，Nb，Zr和Ti中的一种或多种元素，其总量不小于0.05质量％且不超过5质量％。

2. 发明公开

EP2412676A4 PROCESS FOR PRODUCING SODIUM TUNGSTATE, METHOD FOR COLLECTING TUNGSTEN, APPARATUS FOR PRODUCING SODIUM TUNGSTATE, AND PROCESS FOR PRODUCING AQUEOUS SODIUM TUNGSTATE SOLUTION 审中-公开
标题翻译：用于生产钨酸钠，方法TUNGSTENSAMMLUNG，器具，用于产生钨酸钠和方法制备含水NATRIUMTUNGSTATLÖSUNG
公开(公告)号：EP2412676A4
公开(公告)日：2014-05-07
申请号：EP10750763
申请日：2010-03-05
申请人： ALMT CORP , SUMITOMO ELEC HARDMETAL CORP , SUMITOMO ELECTRIC INDUSTRIES
发明人： YAMAMOTO YOSHIHARU , SASAYA KAZUO , FUDO TAKAYUKI , NAKANO AKIRA , YAMANAKA SYUNSUKE , IGUCHI TAKAHISA , SATO FUMIATSU , IKEGAYA AKIHIKO
IPC分类号： C01G41/00 , B01J8/10 , C01G41/02 , C22B7/00 , C22B34/36
CPC分类号： 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

3. 发明公开

EP2543639A4 PROCESS FOR PRODUCTION OF AQUEOUS AMMONIUM TUNGSTATE SOLUTION 审中-公开
标题翻译：方法产生氨水钨溶液
公开(公告)号：EP2543639A4
公开(公告)日：2013-11-20
申请号：EP10847014
申请日：2010-03-05
申请人： UNIV NAGOYA NAT UNIV CORP , ALMT CORP , SUMITOMO ELEC HARDMETAL CORP , SUMITOMO ELECTRIC INDUSTRIES
发明人： ITO HIDEAKI , ITAKURA TAKESHI , YAMAMOTO YOSHIHARU , SASAYA KAZUO , OKUNO TAKUYA , SATO FUMIATSU , YAMANAKA SYUNSUKE , IKEGAYA AKIHIKO
IPC分类号： C01G41/00 , G10L13/08 , G10L15/06
CPC分类号： C01G41/00 , C01P2006/80 , G10L13/08 , G10L15/06 , G10L15/187
摘要： A method for producing an ammonium tungstate aqueous solution includes the steps of: adding sulfuric acid to a solution containing tungstate ions; bringing the solution having the sulfuric acid added therein, into contact with an anion exchange resin; and bringing the anion exchange resin into contact with an aqueous solution containing ammonium ions.

4. 发明公开

EP2375438A4 TUNGSTEN ELECTRODE MATERIAL AND THERMAL ELECTRON EMISSION CURRENT MEASUREMENT DEVICE 有权
标题翻译：钨电极材料用于测量发射电流的热电子
公开(公告)号：EP2375438A4
公开(公告)日：2012-06-13
申请号：EP09831885
申请日：2009-12-08
申请人： ALMT CORP
发明人： NAKABAYASHI SEIJI , KATOH MASAHIRO , YAMAMOTO YOSHIHARU , YOSHIDA TOSHIHIKO , HASEGAWA NORIHIKO
IPC分类号： H01J9/42 , H01J1/146 , H01J61/073
CPC分类号： H01J1/146 , H01B1/08 , H01J9/42 , H01J61/0735 , H01J61/0737

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