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1. 发明专利

JP2547065B2 失效
公开(公告)号：JP2547065B2
公开(公告)日：1996-10-23
申请号：JP7255188
申请日：1988-03-26
申请人： SINTOKOGIO LTD
发明人： UCHIMURA KATSUJI , ISHIGURO HIROYUKI , MATSUMOTO TAKEHIKO , ITO TAKUYA , OOTA KAZUHIRO , AMANO HIRONOBU
IPC分类号： B28B1/26 , B28B23/00

2. 发明专利

JPH01225547A CERAMICS STRUCTURE FOR CHEMICAL REACTION MACHINERY 失效
公开(公告)号：JPH01225547A
公开(公告)日：1989-09-08
申请号：JP5227188
申请日：1988-03-04
申请人： SINTOKOGIO LTD
发明人： ISHIGURO HIROYUKI , UCHIMURA KATSUJI , MATSUMOTO TAKEHIKO , ITO TAKUYA , OTA KAZUHIRO , AMANO HIRONOBU
IPC分类号： B32B18/00
摘要： PURPOSE:To enhance mechanical strength such as compression strength, side surface collapse strength or the like, by integrally constituting a laminar body consisting of two or more layers of a porous layer and a dense layer. CONSTITUTION:An appropriate amount of water, a deflocculating agent and a molding aid are added to and mixed with an aluminum oxide powder having an average particle size of 60mum to prepare a slurry and, after said slurry is brought to a granular state having an average particle size of 70-100mum, a cavity is filled with said slurry under vibration to perform compression molding under predetermined pressure. The granular substance is contracted by about 35% to form a cylindrical gap between the molded body and a cylindrical member 2. Subsequently, an appropriate amount of water, the deflocculating agent and the molding aid are mixed with an aluminum oxide powder having an average particle size of 0.6mum and, after the resulting mixture is brought to a granular state having an average particle size of 60-120mum, the cylindrical gap between the molded body and the cylindrical member 2 is filled with said slurry under vibration to perform compression molding. This molded body is baked to obtain a tubular ceramics structure consisting of two layers of an inside porous layer and an outside dense layer.

3. 发明专利

JPH01210307A FORMING OF SLURRY-LIKE MATERIAL 失效
公开(公告)号：JPH01210307A
公开(公告)日：1989-08-23
申请号：JP3711688
申请日：1988-02-19
申请人： SINTOKOGIO LTD
发明人： UCHIMURA KATSUJI , ISHIGURO HIROYUKI , MATSUMOTO TAKEHIKO , ITO TAKUYA , OTA KAZUHIRO , AMANO HIRONOBU
IPC分类号： B28B1/26 , B22F3/22
摘要： PURPOSE:To make it possible to quickly form a compact at constant speed by a method wherein slurry-like material is forced in a cavity, which is formed by split air-permeable durable forces having respectively close contact permeable membranes thereon, and, after that, the solvent of slurry is removed through suction under vacuum. CONSTITUTION:Air vent holes 3 and 9 are respectively formed on the respective side walls of a top frame 1 and of a bottom frame 7, in which a top force 2 and a bottom force 8 made of sintered metal are respectively and internally installed. Permeable membranes 12 and 13 are brought into close contact with cavity surfaces 2a and 8a under suction by applying releasant on the cavity surfaces 2a and 8a, to which sucking action by vacuum is applied by means of a vacuum pump connected to both the top force 2 and the bottom force 8. After that, by registering both the top and bottom forces 2 and 8, a cavity 14 is formed. Under the state just mentioned above, when slurry-like ceramic 15 is forced in the cavity 14 from an inlet 6, the solvent of slurry passes through the permeable membranes 12 and 13 and vaporizes and is removed by being sucked. The slurry-like ceramic 15 evenly settles at constant speed and solidifies with uniform density.

4. 发明专利

JPH01110102A PREPARATION OF CERAMIC STRUCTURE 失效
公开(公告)号：JPH01110102A
公开(公告)日：1989-04-26
申请号：JP26737787
申请日：1987-10-23
申请人： SINTOKOGIO LTD
发明人： UCHIMURA KATSUJI , ISHIGURO HIROYUKI , MATSUMOTO TAKEHIKO , ITO TAKUYA
IPC分类号： B28B1/30 , H05K1/03
摘要： PURPOSE:To enhance the yield of ceramics and to also form a small hole having high accuracy by printing a conductive sheet member with an insulating paste and subsequently bonding ceramics thereto in a required thickness by electrophoresis before baking the ceramics. CONSTITUTION:An insulating paste (insulating paint) is preliminarily received in the hollow chamber of a printing roll 2 and slurry like ceramics is received in a container 5. Voltage is applied to a sheet member 1 by a DC power source 4. In this state, the sheet member 1 is moved in the direction shown by an arrow and the shaded parts 21, 22 on the surface thereof are printed with the insulating paint by the printing roll 2 and, continuously, aluminum oxide is bonded to the unprinted parts 23 of the sheet member 1 in the container 5 by electrophoresis. Subsequently, the printed sheet member is dried and ceramics is baked to allow the sheet member and the insulating paste to disappear by combustion. By this method, a ceramics structure 23 forming a lattice like plate body is obtained.

5. 发明专利

JPH01210306A FORMING MOLD OF SLURRY-LIKE MATERIAL AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH01210306A
公开(公告)日：1989-08-23
申请号：JP3711588
申请日：1988-02-19
申请人： SINTOKOGIO LTD
发明人： UCHIMURA KATSUJI , ISHIGURO HIROYUKI , MATSUMOTO TAKEHIKO , ITO TAKUYA , OTA KAZUHIRO , AMANO HIRONOBU
IPC分类号： B28B1/26
摘要： PURPOSE:To make it possible to quickly form a compact at constant speed without developing the clogging of the fine pores of the porous solid of a base by a method wherein the base consists of an air-permeable porous solid having the required strength and at the same time a permeable membrane is made on a cavity surface. CONSTITUTION:After a porous solid 1 such as sintered metal type one or the like is installed in a bottom frame 2, a permeable membrane 3 is made on a cavity surface 1a by applying solution, the base material of which is organic polymeric resin such as polymic acid or the like, and drying. Next, a releasing membrane 4 is made on the permeable membrane 3 by applying releasant in order to obtain a bottom force 5. Similarly, after a porous solid 6 is installed in a top frame 7, a permeable membrane 8 and a releasing membrane 9 are made on a cavity surface 6a, resulting in obtaining a top force 10. At forming, the top and the bottom forces are registered so as to form a cavity 11, into which slurry-like ceramic is forced from an inlet 14 under the state that sucking action is applied on the cavity surfaces 6a and 1a.

6. 发明专利

JPH01148452A PRODUCTION OF CYLINDRICAL COMPLEX BODY OF CERAMIC AND METAL 失效
公开(公告)号：JPH01148452A
公开(公告)日：1989-06-09
申请号：JP30722787
申请日：1987-12-04
申请人： SINTOKOGIO LTD
发明人： UCHIMURA KATSUJI , ISHIGURO HIROYUKI , MATSUMOTO TAKEHIKO , ITO TAKUYA , TOMONAGA JUNICHI
IPC分类号： B22D19/00 , C04B37/00 , C04B37/02
摘要： PURPOSE:To prevent cracking of a cylindrical ceramic and to improve strength of joining part between the ceramic and a metal by pouring molten metal into inside of exothermic material at inside of the cylindrical ceramic to preheat the cylindrical ceramic to the temp. to be stood to thermal shock with the molten metal. CONSTITUTION:The molten cast iron is poured into molds 5, 6 from a first sprue 7 and the exothermic material 4 is reacted with this heat, to slowly preheat the cylindrical ceramic 2. Successively, at the time of pouring the molten cast iron from a second sprue 9, as the cylindrical ceramic 2 is preheated, the molten cast iron from the second sprue 2 does not give the cylindrical ceramic 2 the heat shock. After that, the cast iron is solidified, but as the shrinkage force caused by solidification is dispersed and relaxed by the ruggedness on the outer surface of the cylindrical ceramic 2, cracking and breakage on the cylindrical ceramic 2 by the shrinkage force do not occur.

7. 发明专利

JPS6471565A SLIDING MEMBER COMPOSED OF COMPOSITE BODY OF CERAMIC AND METAL AND PRODUCTION THEREOF 失效
公开(公告)号：JPS6471565A
公开(公告)日：1989-03-16
申请号：JP22930487
申请日：1987-09-12
申请人： SINTOKOGIO LTD
发明人： UNOSAKI NAGATO , UCHIMURA KATSUJI , ITO TAKAYUKI , ITO TAKUYA , ISHIGURO HIROYUKI , MATSUMOTO TAKEHIKO
IPC分类号： B22D19/00 , B22D19/08 , C04B37/02
摘要： PURPOSE:To release heat shock of metal to ceramic ball and to uniformly disperse load and sliding heat applying to the ball at the time of sliding by arranging as dispersing the ceramic balls to the prescribed position in a mold through heat insulating adhesive and casting in them by the metal. CONSTITUTION:The ceramic balls 3 thinly coating the heat resistant inorganic adhesive 2 on the outer peripheral surface of the shell mold 1 having permeable cylindrical body are arranged as single layer through the adhesive 2. On the outer peripheral faces at both end parts of the mold 1, expanded polystyrene (PS) 4' substituting for the ball 3 is wound and on the outer peripheral part of the ball 3 layer, the cylindrical foaming PS 4 is wound and on the outer peripheral face, the facing material 5 is applied to make the body 6 to be cast. The one fitting expanded PS-made runner 7 to this is set in the inner box 9 in a flask 8 by using silica sand 14 and air in the box 9 is exhausted through a reducing pressure chamber 11 and the molten metal 16 is poured from a sprue 7 to obtain the cast-in body 17. This inner peripheral surface is ground and polished and the sliding surface having flat face composing of ceramic and cast iron is produced to obtain the sliding member.

8. 发明专利

JPH0829576B2 失效
公开(公告)号：JPH0829576B2
公开(公告)日：1996-03-27
申请号：JP19853987
申请日：1987-08-08
申请人： SINTOKOGIO LTD
发明人： UCHIMURA KATSUJI , ISHIGURO HIROYUKI , MATSUMOTO TAKEHIKO , ITO TAKUYA
IPC分类号： B28B3/00 , B32B5/18 , B32B18/00

9. 发明专利

JPH0687111A MOLDING METHOD FOR BASIC BODY FOR SINTERING 失效
公开(公告)号：JPH0687111A
公开(公告)日：1994-03-29
申请号：JP26326192
申请日：1992-09-04
申请人： SINTOKOGIO LTD
发明人： ISHIGURO HIROYUKI , UCHIMURA KATSUJI , ITO TAKUYA
IPC分类号： B22F3/02 , B28B1/26
摘要： PURPOSE:To obtain a uniform density basic body wherein neither sedimentation nor cohesion of raw material grain in a slurry is found by a method wherein the slurry is heated near to a melting temperature of a screening member and thereafter, cast into a cavity in a molding method for a basic body for sintering. CONSTITUTION:A molding method for a basic body for sintering is as follows; a non-permeable screening member capable of being dissolved in a slurry solvent is stuck fast to a molding surface of a basic body; a granular material is filled in a molding frame place thereon, and an upper face of the granular material is hermetically sealed to form negative pressure inside the molding frame; the screening member is drawn to the granular material side to form the molding face of the same form as that of the molding surface; then, the basic body is released from the mold, and the slurry wherein the solvent is added to the basic body is cast into a cavity formed in the same shape as a body to be molded by opposing vertically to each other under negative pressure. After specific time has elapsed, the negative pressure is released, and the basic body is taken out from the mold. In this case, the slurry is heated to near the melting point of the screening member and thereafter, cast into the cavity.

10. 发明专利

JPH01275103A MOLDING OF SINTERING PROTOTYPE 失效
公开(公告)号：JPH01275103A
公开(公告)日：1989-11-02
申请号：JP10677388
申请日：1988-04-28
申请人： SINTOKOGIO LTD
发明人： UCHIMURA KATSUJI , ISHIGURO HIROYUKI , MATSUMOTO TAKEHIKO , ITO TAKUYA , OTA KAZUHIRO , AMANO HIRONOBU
IPC分类号： B28B1/26
摘要： PURPOSE:To obtain stably a sintering prototype with a uniform density, by using a member of the material permeable for slurry solvent as shielding member and moisten and swell the shielding member uniformly to impart flexibility and extensibility to it when adhering it closely to a prototype member. CONSTITUTION:A porous moistening material 11 made by mixing uniformly a porous material with water is laid on a pan 10 in layered form, and a shielding member 9 composed of water-soluble polyvinyl alcohol film is placed on said porous moistening material 11, said shielding member 9 being suction- held by a film holding frame 12. The same material as said porous moistening material 11 is laid in layered form to be at a standstill on the upper surface of said barrier member 9 and then said shielding member 9 is uniformly moistened. Thereafter, said porous moistening material 11 on said shielding member 9 is removed and said film holding frame 12 is moved upward, so that swelled shielding member 9 is obtained. Further, said member 9 is suction- contacted along a prototype model 4, while it s is extended with the suction from the side of a prototype model plate 1.

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