METHOD OF MAKING CERAMIC SHAPED ABRASIVE PARTICLES, SOL-GEL COMPOSITION, AND CERAMIC SHAPED ABRASIVE PARTICLES
    16.
    发明申请
    METHOD OF MAKING CERAMIC SHAPED ABRASIVE PARTICLES, SOL-GEL COMPOSITION, AND CERAMIC SHAPED ABRASIVE PARTICLES 有权
    陶瓷成型磨料颗粒的制备方法,溶胶凝胶组合物和陶瓷成型磨料颗粒

    公开(公告)号:US20140109490A1

    公开(公告)日:2014-04-24

    申请号:US14127853

    申请日:2012-06-28

    Abstract: A method includes: providing a mold having a plurality of mold cavities, wherein each mold cavity is bounded by a plurality of faces joined along common edges; filling at least some of the mold cavities with a sol-gel composition that includes a release agent dispersed therein; at least partially drying the sol-gel composition thereby forming shaped ceramic precursor particles; calcining at least a portion of the shaped ceramic precursor particles to provide calcined shaped ceramic precursor particles; and sintering at least a portion of the calcined shaped ceramic precursor particles to provide ceramic shaped abrasive particles. A sol-gel composition, shaped ceramic precursor particles, and ceramic shaped abrasive particles associated with practice of the method are also disclosed.

    Abstract translation: 一种方法包括:提供具有多个模腔的模具,其中每个模腔由沿着共同边缘连接的多个面限定; 用包含分散在其中的脱模剂的溶胶 - 凝胶组合物填充至少一些模腔; 至少部分地干燥溶胶 - 凝胶组合物,从而形成成形陶瓷前体颗粒; 煅烧至少一部分成形的陶瓷前体颗粒以提供煅烧形状的陶瓷前体颗粒; 并且烧结至少一部分煅烧成型的陶瓷前体颗粒以提供陶瓷成形的磨料颗粒。 还公开了与该方法的实践相关联的溶胶 - 凝胶组合物,成形陶瓷前体颗粒和陶瓷形磨料颗粒。

    SHAPED, FRACTURED ABRASIVE PARTICLE, ABRASIVE ARTICLE USING SAME AND METHOD OF MAKING
    19.
    发明申请
    SHAPED, FRACTURED ABRASIVE PARTICLE, ABRASIVE ARTICLE USING SAME AND METHOD OF MAKING 有权
    形状,破碎的磨料颗粒,使用它的磨料制品和制造方法

    公开(公告)号:US20090169816A1

    公开(公告)日:2009-07-02

    申请号:US12336877

    申请日:2008-12-17

    Abstract: Precursor alpha alumina abrasive particles in a mold are subjected to a drying process that cracks or fractures at least a majority of the precursor abrasive particles into at least two pieces thereby producing abrasive shards having a smaller size than the mold cavity from which they were made. The smaller abrasive shards, once formed, could be reassembled like jigsaw puzzle pieces to reproduce the original cavity shape of the mold from which they were made. The cracking or fracturing of the precursor abrasive particles is believed to occur by ensuring that the surface tension of the abrasive dispersion to the walls of the mold is greater than the internal attractive forces of the abrasive dispersion as the abrasive dispersion is dried within the mold cavity.

    Abstract translation: 将模具中的前体α氧化铝磨料颗粒进行干燥处理,使至少大部分前体研磨剂颗粒破裂或破裂成至少两个,从而产生具有比其制造的模具腔更小的尺寸的磨料碎片。 一旦形成的较小的磨料碎片可以像拼图拼图一样重新组装,以再现其制造的模具的原始腔体形状。 认为前体研磨剂颗粒的破裂或断裂是通过确保研磨分散体在模具腔内干燥的情况下,研磨分散体对模具壁的表面张力大于磨料分散体的内吸力而发生的 。

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