专利检索 ap:("KABUSHIKI KAISHA TOSHIBA" OR "TOSHIBA MATERIALS CO., LTD.") AND inv:"KATSUHIKO YAMADA" 第 1 页

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发明申请
RARE-EARTH REGENERATOR MATERIAL PARTICLES, AND GROUP OF RARE-EARTH REGENERATOR MATERIAL PARTICLES, REFRIGERATOR AND MEASURING APPARATUS USING THE SAME, AND METHOD FOR MANUFACTURING THE SAME 审中-公开

公开(公告)号：US20170299231A1

公开(公告)日：2017-10-19

申请号：US15636016

申请日：2017-06-28

申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA MATERIALS CO., LTD.

发明人： KATSUHIKO YAMADA , Keiichi FUSE

IPC分类号： F25B9/14 , G01R33/38 , C09K5/04 , B23P15/26 , B22F9/10 , C09K5/14 , G01R33/3815

CPC分类号： C09K5/08 , B22F9/08 , B22F9/10 , B23P15/26 , C09K5/041 , C09K5/14 , C22C2202/02 , F25B9/14 , F25B9/145 , F25B2309/003 , F25B2309/1415 , G01R33/3804 , G01R33/3815 , H01F1/015 , Y10T428/12014

摘要： Provided is a group of rare-earth regenerator material particles having an average particle size of 0.01 to 3 mm, wherein the proportion of particles having a ratio of a long diameter to a short diameter of 2 or less is 90% or more by number, and the proportion of particles having a depressed portion having a length of 1/10 to ½ of a circumferential length on a particle surface is 30% or more by number. By forming the depressed portion on the surface of the regenerator material particles, it is possible to increase permeability of an operating medium gas and a contact surface area with the operating medium gas.