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    • 63. 发明申请
    • LOW CARBON STEEL AND CEMENTED CARBIDE WEAR PART
    • 低碳钢和碳化硅磨损部分
    • WO2014072932A1
    • 2014-05-15
    • PCT/IB2013/059977
    • 2013-11-07
    • SANDVIK INTELLECTUAL PROPERTY AB
    • EDERYD, Stefan
    • C22C1/10B22D19/02B22D19/06B22D19/14C22C29/02
    • C22C1/101B22D19/0081B22D19/02B22D19/06B22D19/14C22C1/1036C22C29/02C22C29/08C22C47/04C22C47/08C22C49/08C22C49/14
    • The present disclosure relates to a wear part having high wear resistance and strength and a method of making the same. The wear part is composed of a compound body of cemented carbide particles cast with a low-carbon steel alloy. The low-carbon steel alloy has a carbon content corresponding to a carbon equivalent Ceq=wt%C+0.3(wt%Si+wt%P) of about 0.1 to about 1.5 weight percent. In another embodiment the wear part could include a body with a plurality of inserts of cemented carbide particles cast into a low-carbon steel alloy disposed in the body. A method of forming a high wear resistant, high strength wear part includes the steps of forming a plurality of cemented carbide inserts by encapsulating cemented carbide particles with a molten low-carbon steel alloy to cast a matrix of cemented carbide particles and low-carbon steel alloy, the low‐carbon steel alloy having a carbon content of and about 1 -1.5 weight percent. Each of the plurality of cemented carbide inserts are coated with at least one layer of oxidation protection/chemical resistant material. The plurality of inserts are directly fixed onto a mold corresponding to the shape of the wear part. The cemented carbide inserts are then encapsulated with the molten low- carbon steel alloy to cast the cemented carbide inserts with the low-carbon steel alloy.
    • 本公开涉及具有高耐磨性和强度的耐磨部件及其制造方法。 磨损部分由铸造有低碳钢合金的硬质合金颗粒的复合体组成。 低碳钢合金的碳含量相当于碳当量Ceq =重量%C + 0.3(重量%Si +重量%P)为约0.1〜约1.5重量%。 在另一个实施例中,磨损部件可以包括具有铸造成设置在主体中的低碳钢合金的多个硬质合金颗粒的插入件的主体。 形成高耐磨,高强度耐磨部件的方法包括以下步骤:通过用熔融的低碳钢合金包封硬质合金颗粒来形成多个硬质合金刀片,以铸造硬质合金颗粒和低碳钢的基体 合金,碳含量为约1-1.5重量%的低碳钢合金。 多个硬质合金刀片中的每一个涂覆有至少一层氧化保护/耐化学腐蚀材料。 多个插入件直接固定到与磨损部件的形状相对应的模具上。 然后将硬质合金刀片用熔融的低碳钢合金包住,以便用低碳钢合金铸造硬质合金刀片。
    • 65. 发明申请
    • 탄화물계 내마모 복합소재
    • 基于碳化物的耐磨复合材料
    • WO2011049361A2
    • 2011-04-28
    • PCT/KR2010/007185
    • 2010-10-20
    • 서울대학교 산학협력단강신후
    • 강신후
    • C22C29/02C22C29/10C22C29/08B22F7/00
    • C22C29/10C22C29/04
    • 주기율표 중 IVa, Va, 및 VIa족 금속으로부터 티타늄(Ti)을 포함하여 선택되는 둘 이상의 금속의 탄화물, 탄질화물, 또는 이들의 혼합물과, Ni, Co 및 Fe로 구성되는 그룹으로부터 선택되는 하나 이상의 금속을 포함하여 이루어지고 미세구조에 있어서 유심구조의 림과 결합상의 조성을 제어하여 계면 결합력이 강화된 것을 특징으로 하는 서멧트 소결체가 개시된다. 본 발명에 따르면, TiC계 또는 Ti(C,N)계 서멧트의 미세구조에 있어서 계면 결합력을 강화함으로써, 재료의 인성과 내마모성을 현저히 향상시키고 특성을 제어할 수 있다.
    • 碳氮化物或两种或更多种选自元素周期表IVa,Va和VIa族金属的混合物,包括钛(Ti)和Ni,Co和Fe 其中通过控制边缘和粘结相组成来控制在微观结构中选自钌和钌中的至少一种金属以控制界面粘结强度。 根据本发明,通过提高TiC系或Ti(C,N)系金属陶瓷的组织中的界面结合力,能够显着提高材料的韧性和耐磨耗性,并且能够控制特性。
    • 68. 发明申请
    • SUPER-HAND ENHANCED HARD-METALS
    • 超级增强硬质合金
    • WO2009128034A1
    • 2009-10-22
    • PCT/IB2009/051567
    • 2009-04-15
    • ELEMENT SIX (PRODUCTION) (PTY) LTDNILEN, Roger William Nigel
    • NILEN, Roger William Nigel
    • C22C26/00C22C29/02
    • C22C26/00C22C29/02
    • The present invention relates to a super-hard enhanced hard-metal comprising particulate hard material and a binder and at least one formation, the formation comprising a core cluster and a plurality of satellite clusters, spaced from, surrounding and smaller than the core cluster, and the core cluster and satellite clusters each comprising a plurality of contiguous super- hard particles. The invention further relates to a method for making a super- hard enhanced hard-metal, the method including forming a green body comprising super-hard particles, particles of a hard material and at least one binder material or material that is capable of being converted into a binder material; subjecting the green body to a temperature of at least 500 degrees centigrade and a pressure at which the super-hard material is not thermodynamically stable to form a sintered body; and subjecting the sintered body to a pressure and temperature at which the super-hard material is thermodynamically stable and to inserts for tools comprising the enhanced hard-metal.
    • 本发明涉及包含颗粒状硬质材料和粘合剂的至少一种形成的超硬强化硬质金属,所述至少一种地层包括与所述芯簇间隔开并且小于核心簇的核心簇和多个卫星簇, 并且核心簇和卫星簇各自包括多个邻接的超硬颗粒。 本发明还涉及一种制备超硬增强硬金属的方法,所述方法包括形成包括超硬颗粒,硬质材料颗粒和至少一种能够转化的粘合剂材料或材料的生坯 成为粘合剂材料; 使生坯经受至少500摄氏度的温度和超硬材料不是热力学稳定的压力以形成烧结体; 并且使所述烧结体经受所述超硬材料在热力学上稳定的压力和温度,以及用于包含所述增强硬金属的工具的插入件。