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    • 4. 发明授权
    • Process for manufacturing hard metal parts
    • 硬质金属零件制造工艺
    • US5972286A
    • 1999-10-26
    • US91096
    • 1998-06-26
    • Reinhard LenkClaus RichterWaldemar Hermel
    • Reinhard LenkClaus RichterWaldemar Hermel
    • B22F3/22C22C1/05B22F3/00
    • C22C1/051B22F3/225
    • The invention relates to the field of ceramic and hard metal industries and concerns a process for manufacturing hard metal parts, in particular th having a complex geometry, such as those used for example as machining tools and wear elements. The object of the invention is to create a process which allows the manufacture of hard metal parts with a complex geometry by using a stable dispersed hard metal-binder suspension, wherein the binder is a thermoplastic binder having a viscosity of 3 to 6 mPa s, and without using an organic solvent to eliminate the binder. For that purpose, a process is disclosed wherein a hard metal powder having an average grain size smaller than 2.0 .mu.m is mixed with a liquefied thermoplastic binder, with viscosity of the mixture being set upon a value of at least 100 mPa s and up to 4,000 mPa s during the whole production and treatment process. The thus obtained stable dispersed suspension is shaped into a molded body from which the thermoplastic binder is then expelled and the binder-free shaped body is then sintered.
    • PCT No.PCT / EP96 / 05452 Sec。 371日期:1998年6月26日 102(e)日期1998年6月26日PCT 1996年12月5日PCT公布。 出版物WO97 / 22427 日期1996年6月26日本发明涉及陶瓷和硬金属工业的领域,涉及用于制造硬金属部件的方法,特别是具有复杂几何形状的工艺,例如用作例如加工工具和磨损元件的那些。 本发明的目的是创建一种通过使用稳定的分散的硬金属 - 粘合剂悬浮液来制造具有复杂几何形状的硬金属部件的方法,其中粘合剂是粘度为3至6mPa·s的热塑性粘合剂, 并且不使用有机溶剂来除去粘合剂。 为此目的,公开了一种方法,其中将平均粒径小于2.0μm的硬质金属粉末与液化的热塑性粘合剂混合,将该混合物的粘度设定在至少100mPa s的值,直到 在整个生产和处理过程中,4000mPa s。 将如此获得的稳定的分散悬浮液成型为成型体,然后将热塑性粘合剂从其中排出,然后将无粘合剂的成形体烧结。
    • 6. 发明申请
    • METAL-CERAMIC COMPOSITE WITH GOOD ADHESION AND METHOD FOR ITS PRODUCTION
    • 具有良好粘合性的金属 - 陶瓷复合材料及其生产方法
    • US20100028699A1
    • 2010-02-04
    • US12519092
    • 2007-12-11
    • Reinhard LenkTassilo MoritzAndreas Baumann
    • Reinhard LenkTassilo MoritzAndreas Baumann
    • B32B15/04C04B37/02B22F1/00B22F3/10
    • B32B15/02B22F7/06B22F2998/00B32B5/30B32B15/04B32B15/16B32B15/18C04B37/023C04B2237/12C04B2237/343C04B2237/348B22F3/115B22F3/22
    • The invention relates to the field of material sciences and relates to a metal-ceramic composite with good adhesive strength, such as can be used, for example, for forming tools or cutting tools. The object of the present invention lies in the disclosure of a metal-ceramic composite with good adhesive strength which has a strong and durable bond between ceramic and metal. The object is attained with a metal-ceramic composite with good adhesive strength, comprising a metal component and a ceramic component and which are connected to one another by adhesive force or by adhesive force and in a non-positive manner, wherein silicon, beryllium, titanium, chromium, nickel, manganese, hafnium, vanadium, zirconium, aluminum and/or the organic compounds thereof is present in the area of the connection surfaces and wherein the components have been processed as a greenbody to form a composite and jointly sintered. The object is further attained through a method in which at least respectively one metal component and ceramic component are connected as a total greenbody and jointly subjected to a temperature treatment, at least for sintering the ceramic components.
    • 本发明涉及材料科学领域,涉及具有良好粘合强度的金属 - 陶瓷复合材料,例如可用于成型工具或切削工具。 本发明的目的在于公开了具有良好粘合强度的金属 - 陶瓷复合材料,其在陶瓷和金属之间具有坚固和耐久的结合。 该目的是通过具有良好粘合强度的金属 - 陶瓷复合材料实现的,其包括金属组分和陶瓷组分,并且通过粘合力或通过粘合力和非正性方式彼此连接,其中硅,铍, 钛,铬,镍,锰,铪,钒,锆,铝和/或其有机化合物存在于连接表面的区域中,并且其中组分被加工成生坯以形成复合材料并联合烧结。 通过至少分别将一种金属组分和陶瓷组分作为总体生长体连接并共同进行温度处理,至少用于烧结陶瓷组分的方法进一步达到目的。