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    • 1. 发明专利
    • Method of recycling cemented carbide and device used in the method
    • 回收碳化硅的方法和方法中使用的装置
    • JP2013019019A
    • 2013-01-31
    • JP2011152920
    • 2011-07-11
    • Toyota Motor Corpトヨタ自動車株式会社Sanalloy Industry Co Ltdサンアロイ工業株式会社
    • ISHIKAWA HIROSHIIKEBE MASAAKIYANAGIDA HIDEFUMI
    • C22B7/00B09B3/00C22B9/02C22B23/02
    • Y02P10/224Y02P10/232Y02P10/234
    • PROBLEM TO BE SOLVED: To achieve a suitable recycling in a method of recycling cemented carbide with a high Co content using Zn decomposition method by suitably melting and diffusing melted Zn into Co and improving a recovery rate of the cemented carbide.SOLUTION: When melting and diffusing cemented carbide granules containing WC as a principal component and Co as a binder component into the melted Zn, the cemented carbide granules are made easier to be infiltrated into the melted Zn by pressurizing the melted Zn housed in a crucible at a temperature at which Co and Zn change into a liquid phase under a Co-Zn constitutional diagram, and the melted Zn in the crucible is convected so as to be suitably melted and diffused into the cemented carbide granules by moving up and down or vibrating by falling the melted Zn. As a result, compared with conventional methods, more melted Zn is melted and diffused into Co and the recovery rate of the cemented carbide granules improves, thereby enabling the suitable recycling.
    • 要解决的问题为了通过适当地熔化并将熔融的Zn扩散到Co中并提高硬质合金的回收率,通过使用Zn分解方法回收具有高Co含量的硬质合金的方法来实现合适的再循环。 解决方案:当熔融和扩散含有WC作为主要成分的硬质合金颗粒和作为粘合剂成分的Co作为熔融的Zn时,使硬质合金颗粒更容易渗入熔融的锌中, 在Co-Zn结构图下Co和Zn变成液相的温度下的坩埚,将坩埚中的熔融Zn对流,适当地熔融并通过上下移动而扩散到硬质合金颗粒中 或通过使熔融的锌落下来振动。 结果,与常规方法相比,更多的熔融的Zn熔化并扩散到Co中,并且改善了硬质合金颗粒的回收率,从而能够进行适当的再循环。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Friction-reduced cemented carbide
    • 摩擦减少的碳化硅
    • JP2012229458A
    • 2012-11-22
    • JP2011096751
    • 2011-04-25
    • Sanalloy Industry Co Ltdサンアロイ工業株式会社
    • IWASAKI MASAHIROYANAGIDA HIDEFUMI
    • C22C29/08B23B27/14
    • PROBLEM TO BE SOLVED: To provide a cemented carbide which reduces abrasion generated when in use as a tool, fixing of a workpiece to a cemented carbide tool by burning, or damage of the carbide tool, and prolongs the service life of the carbide tool.SOLUTION: The cemented carbide has a binder phase including iron-based metals as a main component of 3-30 wt.% and a hard phase comprising tungsten carbide (WC), and the oxide including at least one oxide of rare earth (including Sc, Y) is dispersed in the binder metal. The oxide is contained in 0.01 wt.% or more based on the whole of the carbide.
    • 要解决的问题:提供一种硬质合金,其减少在用作工具时产生的磨损,通过燃烧或硬化工具的损坏将工件固定到硬质合金刀具上,并延长其使用寿命 硬质合金工具。 解决方案:硬质合金具有包含铁基金属作为主要成分为3-30重量%的粘结相和包含碳化钨(WC)的硬相,并且包含至少一种稀土氧化物的氧化物 (包括Sc,Y)分散在粘合剂金属中。 基于整个碳化物,氧化物含量为0.01重量%以上。 版权所有(C)2013,JPO&INPIT
    • 9. 发明专利
    • Rotary tool
    • 旋转工具
    • JP2010260065A
    • 2010-11-18
    • JP2009111081
    • 2009-04-30
    • Osaka UnivSanalloy Industry Co Ltdサンアロイ工業株式会社国立大学法人大阪大学
    • FUJII HIDETOSHIIKEBE MASAAKIIWASAKI MASAHIROYANAGIDA HIDEFUMINISHIMAKI HIROSHI
    • B23K20/12C22C29/08C22C29/10
    • PROBLEM TO BE SOLVED: To provide a rotary tool having long service life even to a metallic material whose welding or surface reforming is difficult.
      SOLUTION: A WC-Ni-Cr-based material is used as a material for a rotary tool 100a. The high-temperature stabilized phase of iron is austenite, the crystal structure is body-centered cubic crystal. The crystal structure of Ni is similar thereto, and excellent high-temperature strength can be obtained by using Ni for the metal phase. Further, in the Ni-Cr phase with Cr subjected to solid solution, the strength is increased by enhancing the solid solution, and excellent characteristics are shown such as thermal stress, oxidation resistance, and corrosion resistance. As a result, in the WC-Ni-Cr-based alloy, deposition resistance is considerably improved in comparison with that of a WC-Co-based alloy. Thus, the friction resistance caused during the friction stir welding is stabilized, and accordingly, stress concentration (friction resistance+bending stress) due to any unexpected increase in friction resistance during the welding is avoided, and any breakage of the rotary tool 100a can be prevented.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种即使对于焊接或表面改性困难的金属材料也具有使用寿命长的旋转工具。 解决方案:将WC-Ni-Cr基材料用作旋转工具100a的材料。 铁的高温稳定相是奥氏体,晶体结构是体心立方晶体。 Ni的结晶结构相似,通过使用Ni作为金属相,可以获得优异的高温强度。 此外,在具有固溶Cr的Ni-Cr相中,通过提高固溶体而提高强度,并且显示出诸如热应力,抗氧化性和耐腐蚀性的优异特性。 结果,在WC-Ni-Cr基合金中,与WC-Co系合金相比,耐沉积性显着提高。 因此,摩擦搅拌焊接时产生的摩擦阻力得以稳定化,因此避免了由焊接中的任何意外的摩擦阻力增加引起的应力集中(摩擦阻力+弯曲应力),并且可以使旋转工具100a的任何断裂 预防。 版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • High-strength hard metal, production method therefor, and tool using it
    • 高强度金属,其生产方法及其使用的工具
    • JP2006188749A
    • 2006-07-20
    • JP2005263560
    • 2005-09-12
    • Sanalloy Industry Co Ltdサンアロイ工業株式会社
    • IWASAKI MASAHIROYANAGIDA HIDEFUMIIKEBE MASAAKI
    • C22C1/05B22F3/10B22F3/24C22C29/08
    • PROBLEM TO BE SOLVED: To provide a high-strength and high-toughness hard metal based on a WC-Co system (where the WC-Co system means not only a system including hard particles mainly formed of WC and an iron-family metal powder containing Co, but also a system including the hard particles that contain at least one compound selected from a carbide except WC, a nitride, a carbonitride and a boride of IVa, Va and VIa family elements in the periodic table), which is superior in abrasion resistance, toughness, defect resistance and thermal cracking resistance. SOLUTION: This method for producing the hard metal comprises the steps of: carburizing a compact of a WC-Co system powder, of which the surface layer part is mainly formed of a double carbide of a M 12 C type to a M 3 C type (where M represents one or more elements among Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W, and one or more elements among Fe, Co and Ni); and then liquid-phase-sintering it to adjust an average size of WC particles in the surface layer while using a liquid crystal sintering temperature as an index. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供基于WC-Co体系的高强度和高韧性的硬质金属(其中WC-Co体系不仅意味着包括主要由WC形成的硬质颗粒和铁 - 含有Co的家族金属粉末,还包括含有选自碳化物中的至少一种化合物的硬质粒子的体系,元素周期表中的IVa,Va和VIa族元素的WC,氮化物,碳氮化物和硼化物),其中 耐磨性,韧性,耐缺陷性和耐热龟裂性优异。 解决方案:用于制备硬质金属的方法包括以下步骤:对WC-Co系粉末的压块进行渗碳,其中表面层部分主要由M SB 12的双碳晶形成, SB> C型至M 3 SB 3类型(其中M表示Ti,Zr,Hf,V,Nb,Ta,Cr,Mo和W中的一种或多种元素,以及其中的一种或多种元素 Fe,Co和Ni); 然后进行液相烧结,调整表面层中的WC颗粒的平均尺寸,同时以液晶烧结温度为指标。 版权所有(C)2006,JPO&NCIPI