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    • 4. 发明公开
    • 함침법을 이용한 연마 입자의 제조 방법 및 연마 물품
    • 使用印刷制造磨粒的方法和磨料制品
    • KR1020000036182A
    • 2000-06-26
    • KR1019997002236
    • 1997-03-21
    • 쓰리엠 컴퍼니
    • 우드,윌리암,피.
    • C04B35/10
    • B24D3/00C01F7/02C04B35/1115C04B38/009C09K3/1409C04B35/10C04B41/455C04B41/5027C04B41/53
    • PURPOSE: A method for making alpha alumina-based abrasive grain, wherein during an impregnation step of the method, alpha alumina-based ceramic precursor particles conchoidal fracture is provided. CONSTITUTION: The method for making alpha alumina-based abrasive grain comprises the following steps of: (a) impregnating an impregnation composition comprising a liquid into a porous, calcined, elongated particle of alpha alumina-based precursor having a longitudinal axis and internal interconnected pores, the particle being capable of receiving the liquid and upon impregnation fracturing generally in the direction of the longitudinal axis into smaller elongate particles to cause conchoidal fracture of the elongated particle into the smaller elongate particles; and (b) converting the smaller elongate particles to alpha alumina-based ceramic abrasive grain. `The abrasive grain can be incorporated into abrasive products such as coated abrasives, bonded abrasives, and non-woven abrasives.
    • 目的:一种制备α氧化铝基磨料颗粒的方法,其中在该方法的浸渍步骤期间,提供了α氧化铝基陶瓷前体颗粒贝壳断裂。 构成:制备基于α氧化铝的磨料颗粒的方法包括以下步骤:(a)将包含液体的浸渍组合物浸渍到具有纵轴和内部互连孔的多孔,煅烧的细长的α氧化铝基前体颗粒中 ,所述颗粒能够接收液体并且在浸渍时通常沿纵向轴线的方式断裂成较小的细长颗粒,从而使细长颗粒发生贝壳状断裂成较小的细长颗粒; 和(b)将较小的细长颗粒转变成α氧化铝基陶瓷磨料颗粒。 磨粒可以并入磨料产品,如涂层磨料,粘结磨料和非织造磨料。