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1. 发明授权

US3661544A A method for making thermosetting resinous abrasive tools 失效
标题翻译：一种制造热固性研磨工具的方法
公开(公告)号：US3661544A
公开(公告)日：1972-05-09
申请号：US3661544D
申请日：1969-11-28
申请人： BMI LAB INDUSTRY
发明人： WHITAKER NOBLE D
IPC分类号： B24D3/30 , B24D7/00 , B24D18/00 , B24B17/00 , C08G51/12
CPC分类号： B24D3/30 , B24D7/00 , B24D18/0009
摘要： A method for producing an abrasive tool or structure which includes the steps of mixing an abrasive composition containing abrasive particles and, preferably, friable particles, with a liquid, multi-stage, thermosetting resin and coating substantially all of the individual particles with the resin; curing the resin to the B-stage while the resin is in contact with the particles to form a fusible solid coating on the particles and forming individual particles coated with said Bstage resin, and placing said resin coated particles in a mold and heating the particles sufficiently to render the resin tacky and fusible and, concurrently, applying sufficient pressure to form a coherent mass of said particles and curing the resin to a hard infusible state to form a high tensile strength bond between said particles. An abrasive tool composed of abrasive particles and lightweight, easily crushable, friable particles uniformly dispersed throughout the abrasive particles, each of the particles being bonded together with a high strength bond formed by a thermosetting resin cured to a hard and infusible state.
摘要翻译：一种用于生产研磨工具或结构的方法，包括以下步骤：将含有磨料颗粒，优选易碎颗粒的磨料组合物与液体，多级热固性树脂混合并将基本上所有的单个颗粒涂覆在树脂上; 将树脂固化到B阶段，同时树脂与颗粒接触以在颗粒上形成可熔固体涂层并形成涂覆有所述B阶树脂的单个颗粒，并将所述树脂涂覆的颗粒放置在模具中并加热颗粒足以使树脂发粘和可熔，并且同时施加足够的压力以形成所述颗粒的粘结块，并将树脂固化成硬的不可渗透状态，以在所述颗粒之间形成高拉伸强度的粘结。研磨工具由磨料颗粒和均匀分散在磨料颗粒上的轻质，易破碎，易碎的颗粒组成，每个颗粒通过固化至硬质和不熔状态的热固性树脂形成的高强度粘合在一起。

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