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31. 发明专利

JPS61251556A MANUFACTURE OF WATER-REPELLANT CALCIUM SILICATE FORMED BODY 失效
公开(公告)号：JPS61251556A
公开(公告)日：1986-11-08
申请号：JP8892485
申请日：1985-04-26
申请人： NICHIAS CORP
发明人： KUBOTA KAZUO , TAKAHASHI MASAHIDE , KATAHIRA YOSHIHARU
IPC分类号： C04B28/18 , C04B22/06 , C04B24/42

32. 发明专利

JPS61251555A MANUFACTURE OF WATER-REPELLANT CALCIUM SILICATE FORMED BODY 失效
公开(公告)号：JPS61251555A
公开(公告)日：1986-11-08
申请号：JP8892385
申请日：1985-04-26
申请人： NICHIAS CORP
发明人： KUBOTA KAZUO , TAKAHASHI MASAHIDE , KATAHIRA YOSHIHARU
IPC分类号： C04B22/06 , C04B24/42 , C04B28/06 , C04B28/18

33. 发明专利

JPS61251554A MANUFACTURE OF WATER-REPELLANT CALCIUM SILICATE FORMED BODY 失效
公开(公告)号：JPS61251554A
公开(公告)日：1986-11-08
申请号：JP8892285
申请日：1985-04-26
申请人： NICHIAS CORP
发明人： KUBOTA KAZUO , TAKAHASHI MASAHIDE , KATAHIRA YOSHIHARU
IPC分类号： C04B28/18 , C04B22/06 , C04B24/42

36. 发明专利

JPS60103067A MANUFACTURE OF CALCIUM SILICATE FORMED BODY 失效
公开(公告)号：JPS60103067A
公开(公告)日：1985-06-07
申请号：JP20585283
申请日：1983-11-04
申请人： NICHIAS CORP
发明人： KUBOTA KAZUO , TAKAHASHI MASAHIDE , KATAHIRA YOSHIHARU , INABA KEI , KANAMORI YUUJI
IPC分类号： C04B28/18

38. 发明专利

JPH05298924A 失效
公开(公告)号：JPH05298924A
公开(公告)日：1993-11-12
申请号：JP12290992
申请日：1992-04-17
申请人： NICHIAS CORP
发明人： KUBOTA KAZUO , KAYAMA MASAAKI , MUKODA YASUMICHI
IPC分类号： C04B28/06 , H01B3/14
摘要： PURPOSE:To make a cement material have high arc resistance, practically sufficient mechanical strength and impact resistance, and good cutting property by containing chopped strand glass fibers, etc., and using boehmite for a matrix part. CONSTITUTION:To alumina cement, 5-15% (weight ratio of a final product) of chopped strand glass fibers, 5-15% of a mica powder, and 0-20% of a high melting point filler, and water are added and the mixture is mixed. The obtained slurry-like mixture is dehydrated and formed and the resulting formed body is heated in an autoclave to produce boehmite and calcium aluminate hydrate from the alumina cement. In this case, the chopped strand glass fibers that the arc resistant material contains are dispersed uniformly while firmly bound to the matrix and thus the mechanical strength and impact resistance of the arc resistant material are improved. Also, crack formation and spread of cracks due to thermal impact by electric arc are prevented and the crack formed at cutting process is kept at the formed position and prevented from spreading and thus the cutting property is improved.

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