Method of producing ultra-hard abrasive particles
    1.
    发明授权
    Method of producing ultra-hard abrasive particles 失效
    生产超硬磨粒的方法

    公开(公告)号:US06979357B2

    公开(公告)日:2005-12-27

    申请号:US10415345

    申请日:2001-11-06

    摘要: A method of producing a plurality of discrete ultra-hard abrasive particles includes the steps of providing a plurality of granules, each comprising at least one ultra-hard abrasive particle, a precursor for the abrasive particle and a solvent/catalyst for the abrasive particle or precursor of such a solvent/catalyst, placing the granules with a separating medium between adjacent granules in the reaction zone of a high pressure/high temperature apparatus, subjecting the contents of the reaction zone to elevated temperature and pressure conditions at which the ultra-hard abrasive particle is crystallographically stable, recovering thus treated material from the reaction zone and removing the separating medium in the treated material to produce a plurality of discrete abrasive particles.

    摘要翻译: 一种制备多个离散的超硬磨料颗粒的方法包括提供多个颗粒的步骤,每个颗粒包含至少一个超硬磨料颗粒,磨料颗粒的前体和磨料颗粒的溶剂/催化剂, 这种溶剂/催化剂的前体,在高压/高温装置的反应区中将颗粒与相邻颗粒之间的分离介质放置在反应区中,使反应区的内容物经受高温和高压条件,其中超硬 研磨颗粒在晶体学上是稳定的,从反应区回收如此处理的材料并除去处理过的材料中的分离介质以产生多个分散的研磨颗粒。

    Polycrystalline abrasive grit
    2.
    发明授权
    Polycrystalline abrasive grit 失效
    多晶磨粒

    公开(公告)号:US06913633B2

    公开(公告)日:2005-07-05

    申请号:US10398655

    申请日:2001-10-09

    摘要: A method is provided for producing a plurality of polycrystalline ultra-hard abrasive grit. The method includes the steps of providing a mass of ultra-hard abrasive particles or a mass of a combination of a precursor for such particles and a suitable solvent/catalyst, forming the mass into a plurality of green state granules, placing the granules with a separating medium between adjacent granules in the reaction zone of a high pressure/high temperature apparatus, subjecting the contents of the reaction zone to elevated temperature and pressure conditions which the ultra-hard abrasive particle is crystallographically stable, recovering the thus sintered material from the reaction zone and removing the separating medium in the sintered material to produce a plurality of crystalline abrasive grit. The ultra-hard abrasive is generally diamond or cubic boron nitride.

    摘要翻译: 提供一种用于制造多个多晶超硬磨料砂粒的方法。 该方法包括以下步骤:提供大量的超硬磨料颗粒或这种颗粒的前体与合适的溶剂/催化剂的组合的质量组合成多个绿色状态的颗粒,将颗粒置于 在高压/高温装置的反应区域中的相邻颗粒之间分离介质,使反应区的内容物经受超硬磨料颗粒在结晶学上稳定的升高温度和压力条件,从反应中回收这样烧结的材料 并且除去烧结材料中的分离介质以产生多个结晶磨料砂粒。 超硬磨料通常是金刚石或立方氮化硼。

    Modified composite silicon nitride powders for thermal coating
technologies and process for their production
    4.
    发明授权
    Modified composite silicon nitride powders for thermal coating technologies and process for their production 失效
    用于热涂层技术的改性复合氮化硅粉末及其生产工艺

    公开(公告)号:US6110853A

    公开(公告)日:2000-08-29

    申请号:US147063

    申请日:1999-02-11

    摘要: The invention concerns the field of ceramics and relates to modified composite silicon nitride powders as used, for example, for coating highly stressed components. It is the aim of the invention to provide modified composite silicon nitride powders and a process for their production by means of which silicon nitride coatings can be produced by prior art coating techniques. This aim is achieved by a modified silicon nitride powder in which silicon nitride particles are contained in an oxide-nitride or silicon binder matrix, where the binder matrix occupies 10 to 40% by volume of the total volume of the powder and the powder particle size d.sub.90 .ltoreq.100 .mu.m. The aim is also achieved by a process in which a mixture is made containing silicon nitride and/or silicon and one or more oxides or mixtures of oxides or containing silicon or silicon and silicon nitride, said mixture is homogenised and then granulated, subjected to single or multi-stage tempering in a nitrogen-containing atmosphere at a pressure of 0.5 to 100 bar ground.

    摘要翻译: PCT No.PCT / EP97 / 01317 Sec。 371日期1999年2月11日 102(e)日期1999年2月11日PCT 1997年3月15日PCT公布。 公开号WO97 / 36820 PCT 日期:1997年10月9日本发明涉及陶瓷领域,涉及用于例如涂覆高应力组分的改性复合氮化硅粉末。 本发明的目的是提供改性的复合氮化硅粉末及其生产方法,通过这些方法可以通过现有技术的涂覆技术生产氮化硅涂层。 该目的通过其中氮化硅颗粒包含在氧化物氮化物或硅粘合剂基质中的改性氮化硅粉末来实现,其中粘合剂基质占粉末总体积的10至40体积%,粉末粒度 d90

    Coating powder of Cr or V doped titanium suboxides
    5.
    发明授权
    Coating powder of Cr or V doped titanium suboxides 失效
    涂覆粉末的Cr或V掺杂的低价铬

    公开(公告)号:US07445763B2

    公开(公告)日:2008-11-04

    申请号:US10469935

    申请日:2002-03-04

    IPC分类号: C23C4/10

    CPC分类号: C23C4/11

    摘要: A coating powder based on chemically modified titanium suboxides, for use in various coating techniques. Coatings produced from this powder are characterized by high electroconductivity, good solid lubricating properties and resistance to wear. For these reasons, there are numerous possibilities of use of components which were coated by suitable processes with this powder, especially as functional layers for fuel cells in electrochemical installations, in the new car industry, in mechanical engineering and in other economic activities. The coating powder based on titanium suboxides having a defined defect structure is characterized in that it is modified by at least one metallic alloying element and described by general formula: Tin-2Me2O2n-1.

    摘要翻译: 一种基于化学改性的低价氧化物的涂料粉末,用于各种涂料技术。 由该粉末制成的涂层的特征在于高导电性,良好的固体润滑性能和耐磨性。 由于这些原因,使用通过合适的方法涂覆这种粉末的组分的许多可能性,特别是作为电化学装置中的燃料电池,新型汽车工业,机械工程和其它经济活动中的功能层。 具有确定的缺陷结构的基于低氧化钛的涂料粉末的特征在于其被至少一种金属合金元素改性并通过以下通式描述:Ti 2 n 2 Me 2 2n-2n-1。

    Method for Dispersing and Passivating Particulate Powders in Water and Aqueous Media
    6.
    发明申请
    Method for Dispersing and Passivating Particulate Powders in Water and Aqueous Media 审中-公开
    在水和水介质中分散和钝化颗粒状粉末的方法

    公开(公告)号:US20070259970A1

    公开(公告)日:2007-11-08

    申请号:US11568374

    申请日:2005-04-13

    IPC分类号: B01F17/00

    CPC分类号: B01F17/005

    摘要: The invention relates to a method for dispersing and passivating particulate powders in water and aqueous media. It is particularly advantageously applicable in the handling and processing of non-oxidic powders, e.g., in the ceramic and hard-metal industry. In the method claimed auxiliaries are added due to the process. According to the invention this method is characterized in that polyvinylamines and/or the initial products thereof are used as these auxiliaries.

    摘要翻译: 本发明涉及在水和水介质中分散和钝化颗粒粉末的方法。 特别有利地适用于非氧化性粉末的处理和加工,例如在陶瓷和硬金属工业中。 在所要求的方法中,由于该方法,添加了助剂。 根据本发明,该方法的特征在于使用聚乙烯胺和/或其初始产物作为这些助剂。

    Coating powder and method for its production
    9.
    发明授权
    Coating powder and method for its production 有权
    涂料粉及其生产方法

    公开(公告)号:US6162276A

    公开(公告)日:2000-12-19

    申请号:US269819

    申请日:1999-04-01

    摘要: The invention relates to a coating powder and method for its production. Said powder can be used in many technical fields, specially in machine and vehicle construction in chemical and petro-chemical installations. This coating powder has a hardmetal-like microstructure and consists of two cubic hard material phases, each of them representing a nucleus-external surface structure of a hard material particle. The hard material phase in the nucleus contains mostly Ti and C and the hard material phase in the external surface mostly Ti, a second metal and C, which are embedded in a binder phase containing at least one or more elements such as Ni, Co and Fe. According to the invention, said coating powder is characterized by the fact that no additional alloying element exists either in the hard material phase, in the binder phase or in both phases simultaneously. According to the invention, the coating powder is produced by crushing and mixing and homogenizing the individual hard materials and the metal powder in an aqueous suspension in a ball triturator, which are later on granulated, sintered and processed using a grinding technique.

    摘要翻译: PCT No.PCT / DE97 / 02207 Sec。 371日期1999年4月1日 102(e)1999年4月1日PCT 1997年9月25日PCT公布。 公开号WO98 / 14630 PCT 日期:1998年04月9日本发明涉及涂料粉末及其制造方法。 所述粉末可用于许多技术领域,特别是在化学和石油化学设备中的机器和车辆构造中。 该涂层粉末具有硬质的微观结构,由两个立方体硬质相组成,每一个表示硬质材料颗粒的核 - 外表面结构。 核中的硬质相主要含有Ti和C,外表面的硬质相大部分为Ti,第二金属和C,其嵌入含有至少一种或多种元素如Ni,Co的粘结相中, 铁 根据本发明,所述涂层粉末的特征在于,在硬质材料相中,在粘合剂相中或两相中不存在另外的合金元素。 根据本发明,通过使用研磨技术将各种硬质材料和金属粉末在球磨机中的水性悬浮液中破碎混合均化,后来进行造粒,烧结和加工来制造涂层粉末。