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    • 3. 发明授权
    • Ceramic multilayer filters and method for producing the same
    • 陶瓷多层过滤器及其制造方法
    • US06978901B1
    • 2005-12-27
    • US09856495
    • 1999-12-03
    • Jörg AdlerReinhard LenkHans-Jürgen Richter
    • Jörg AdlerReinhard LenkHans-Jürgen Richter
    • B01D39/20B32B18/00B01D39/00
    • B01D39/2075B32B18/00C04B35/653C04B2235/656C04B2235/6567C04B2235/658C04B2237/343C04B2237/365C04B2237/72
    • The invention relates to the area of ceramics and to ceramic multilayer filters, such as used for separating gases. The invention provides ceramic multilayer filters which are more economical to produce. To this end, the inventive ceramic multilayer filters include at least two layers of different particle size, the particle surfaces of all of the ceramic particles being completely or partially perfused with a material and spot and/or surface joints being formed between particles. The invention also provides a method for producing ceramic multilayer filters of this type, according to which slips are produced from at least two ceramic powders of different particle size, the particles of the ceramic powders being perfused with a material or a material in powder form being added to the ceramic slips. One or more layers are formed from the slips and then dried. At least two layers are placed one above the other and/or joined to each other and together are subjected to a temperature increase.
    • 本发明涉及陶瓷和陶瓷多层过滤器的面积,例如用于分离气体。 本发明提供了更经济地制造的陶瓷多层过滤器。 为此,本发明的陶瓷多层过滤器包括至少两层不同的粒度,所有陶瓷颗粒的颗粒表面完全或部分地被材料灌注,并且在颗粒之间形成点和/或表面接头。 本发明还提供了一种用于制造这种类型的陶瓷多层过滤器的方法,根据该方法,由至少两种不同粒度的陶瓷粉末制成滑块,陶瓷粉末的颗粒用粉末形式的材料或材料灌注 添加到陶瓷片。 从滑盖形成一层或多层,然后干燥。 至少两层被一个放置在另一个之上和/或彼此连接并且一起受到升温。
    • 9. 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。