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    SHAPED ABRASIVE PARTICLES AND METHOD OF MAKING
    12.
    发明申请
    SHAPED ABRASIVE PARTICLES AND METHOD OF MAKING 审中-公开

    公开(公告)号：US20180066169A1

    公开(公告)日：2018-03-08

    申请号：US15806794

    申请日：2017-11-08

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Dwight D. Erickson

    IPC: C09K3/14

    Abstract: A method of making shaped abrasive particles including forming an abrasive flake comprising a plurality of precursor shaped abrasive particles and a frangible support joining the precursor shaped abrasive particles together; transporting the abrasive flake through a rotary kiln to sinter the abrasive flake; and breaking the sintered abrasive flake into individual shaped abrasive particles. The method is useful to make small shaped abrasive particles having insufficient mass to be efficiently individually sintered in a rotary kiln without joining two or more of the shaped abrasive particles together.

    SINTERED ABRASIVE PARTICLES, METHOD OF MAKING THE SAME, AND ABRASIVE ARTICLES INCLUDING THE SAME
    13.
    发明申请
    SINTERED ABRASIVE PARTICLES, METHOD OF MAKING THE SAME, AND ABRASIVE ARTICLES INCLUDING THE SAME 审中-公开
    烧结磨粒，其制造方法和包括其的磨料制品

    公开(公告)号：US20160068729A1

    公开(公告)日：2016-03-10

    申请号：US14782475

    申请日：2014-03-27

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Dwight D. Erickson ,  Anatoly Z. Rosenflanz

    IPC: C09K3/14 ,  C01F7/38

    CPC classification number: C09K3/1409 ,  C01F7/027 ,  C01F7/38 ,  C01P2004/03 ,  C01P2004/45 ,  C01P2004/61 ,  C01P2004/62 ,  C04B35/1115 ,  C04B35/62665 ,  C04B35/6268 ,  C04B2235/3218

    Abstract: A method of making sintered abrasive particles includes passing alumina precursor particles through a flame under conditions such that they are converted to alpha alumina. The precursor particles comprise a precursor of alpha alumina and have an average particle size of less than or equal to 500 microns. Sintered abrasive particles have a cellular microstructure comprising alpha alumina crystal grains of alpha alumina having a maximum dimension of less than about 3 microns are also disclosed. The sintered abrasive particles have an average particle size of less than or equal to 500 microns, and are essentially free of seed particles and alpha alumina grain size modifiers. Abrasive articles comprising a binder and a plurality of the sintered abrasive particles are also disclosed.

    Abstract translation: 制造烧结磨料颗粒的方法包括使氧化铝前体颗粒通过火焰，使其转化为α氧化铝。 前体颗粒包含α氧化铝的前体，其平均粒度小于或等于500微米。 还公开了烧结磨料颗粒具有包含α氧化铝的α氧化铝晶粒的细胞微结构，其具有小于约3微米的最大尺寸。 烧结磨料颗粒具有小于或等于500微米的平均粒度，并且基本上不含种子颗粒和α氧化铝颗粒尺寸改性剂。 还公开了包含粘合剂和多个烧结磨料颗粒的磨料制品。

    Sintered abrasive particles, method of making the same, and abrasive articles including the same
    18.
    发明授权
    Sintered abrasive particles, method of making the same, and abrasive articles including the same 有权

    公开(公告)号：US10400146B2

    公开(公告)日：2019-09-03

    申请号：US14782475

    申请日：2014-03-27

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Dwight D. Erickson ,  Anatoly Z. Rosenflanz

    IPC: C09K3/14 ,  C04B35/111 ,  C04B35/626 ,  C01F7/02 ,  C01F7/38

    Abstract: A method of making sintered abrasive particles includes passing alumina precursor particles through a flame under conditions such that they are converted to alpha alumina. The precursor particles comprise a precursor of alpha alumina and have an average particle size of less than or equal to 500 microns. Sintered abrasive particles have a cellular microstructure comprising alpha alumina crystal grains of alpha alumina having a maximum dimension of less than about 3 microns are also disclosed. The sintered abrasive particles have an average particle size of less than or equal to 500 microns, and are essentially free of seed particles and alpha alumina grain size modifiers. Abrasive articles comprising a binder and a plurality of the sintered abrasive particles are also disclosed.

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