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    Process for making sintered abrasive grains
    11.
    发明授权
    Process for making sintered abrasive grains 失效
    制造烧结磨粒的方法

    公开(公告)号：US3909991A

    公开(公告)日：1975-10-07

    申请号：US7425770

    申请日：1970-09-22

    申请人： NORTON CO

    发明人： COES JR LORING

    IPC分类号： C09K3/14 ,  C09C1/68

    CPC分类号： C09K3/1418

    摘要： Isostatic hot-pressing is adapted for the manufacture of sintered abrasive grains, including random shaped and preshaped tumbling media. Abrasive grains are preshaped from the desired material which has first been reduced to a submicron sized powdered, and then the preshaped particles are hot-pressed while suspended in a high temperature isostatic pressing medium like graphite, boron nitride or the like. The resulting sintered particles are denser and more finely crystalline than particles of the same composition made by other known methods.

    摘要翻译： 等静压热压适用于制造烧结磨粒，包括随机形状和预成型的翻滚介质。 研磨颗粒由首先被还原成亚微米尺寸粉末的所需材料预成型，然后将预成型颗粒热压，同时悬浮在诸如石墨，氮化硼等的高温等静压压介质中。 所得到的烧结颗粒比通过其它已知方法制造的相同组成的颗粒更致密且更细。