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1. 发明专利

JPH08302900A CIRCULAR STEEL-PIPE COLUMN HAVING THICK-WALL PORTION AND ITS MANUFACTURE 失效
公开(公告)号：JPH08302900A
公开(公告)日：1996-11-19
申请号：JP12961695
申请日：1995-04-28
申请人： NIPPON KOKAN KK
发明人： FUKUMOTO TADASHI , HORIE MASAYUKI
IPC分类号： E04B1/24 , B21C37/08 , B21C37/16 , E04C3/32
摘要： PURPOSE: To facilitate construction work along a steel-pipe column by forming a circular steelpipe column which consists of thick-wall portions formed at its portions to which secondary structures such as beams are attached and thin-wall portions formed at the portions other than the thick-wall portions. CONSTITUTION: A stepped steel plate 12 on one side of which thick-wall portions 11A and thin-wall portions 11B are formed is adjusted and formed into a circular steel-pipe column by UOE method with the thick-wall portions 11A facing upward. The circular steel-pipe column consists of the thick-wall portions 11A formed at its portions to which secondary structures such as beams are attached and the thin-wall portions 11B formed at the portions other than the thick-wall portions 11A, and has a uniform outside diameter throughout the direction of its pipe axis. The relational expression of the wall thickness (t1 ) of the thin- wall portion 11B and the wall thickness (t2 ) of the thick-wall portion 11A of the circular steel-pipe column is 1.05t1

2. 发明专利

JPH0422560A METHOD FOR PREFORMING REINFORCING MEMBER OF METAL MATRIX COMPOSITE 失效
公开(公告)号：JPH0422560A
公开(公告)日：1992-01-27
申请号：JP12571990
申请日：1990-05-16
申请人： NIPPON KOKAN KK
发明人： FUKUMOTO TADASHI , HINO YOSHIMICHI , NAKAUCHI ICHIRO , IWASAKI NORIO
IPC分类号： B22D19/00 , B22D19/14 , C22C47/08
摘要： PURPOSE:To easily and efficiently preform a fibrous reinforcing member into a hollow preformed body by using a material lost by heating as material of a core. CONSTITUTION:First, a lost form core 14 is formed by material lost by heating. This lost foam core is mounted in a cavity 11. Then, fibrous reinforcing member slurry is supplied from a slurry supplying passage 12 into the cavity 11. After the fibrous reinforcing member slurry is supplied, the pressure in the cavity 11 is reduced by an external vacuum means to remove water in the fibrous reinforcing member slurry and to obtain a primary preformed body 15 arranging a lost foam core 14. Then, when the primary preformed body 15 obtained is heated, the lost foam core 14 is heated and lost and a hollow preformed body 16 is manufactured. Then, the hollow preformed body 16 obtained is built up into a mold of metal matrix composite. Molten metal is supplied into the cavity 11, pressed and impregnated in the preformed body. In this case, the preformed body 16 is hollow and therefore the molten metal is supplied efficiently.

3. 发明专利

JPH0422559A METHOD FOR PREFORMING REINFORCING MEMBER OF METAL MATRIX COMPOSITE 失效
公开(公告)号：JPH0422559A
公开(公告)日：1992-01-27
申请号：JP12571890
申请日：1990-05-16
申请人： NIPPON KOKAN KK
发明人： FUKUMOTO TADASHI , HINO YOSHIMICHI , NAKAUCHI ICHIRO , IWASAKI NORIO
IPC分类号： B22D19/00 , B22D19/14 , C22C47/08
摘要： PURPOSE:To successfully preform reinforcing member through prevention of separation and cracking by removing the water in fibrous reinforcing member slurry only to the direction of porous member. CONSTITUTION:A cavity 14 of a split die is formed by facing a porous die 10 and a non-porous die 12 to each other. The fibrous reinforcing member slurry 16 supplied to the cavity removes water only from the porous die 10. At this time, since the fibrous reinforcing member slurry 16 shrinks near the porous member, new fibrous reinforcing slurry 16 is supplied in sequence. In this way, such a gradient that the content of water is reduced from the non-porous die 12 toward the porous die 10 is made in the fibrous reinforcing member slurry. Therefore, the density of the middle layer part of the fibrous reinforcing member slurry 16 is prevented from reducing. As a result, separation from the middle layer part and cracking on the shoulder part are prevented in the preform.

4. 发明专利

JPH0412771A GOLF CLUB HEAD MADE OF FIBER REINFORCED METAL 失效
公开(公告)号：JPH0412771A
公开(公告)日：1992-01-17
申请号：JP11565290
申请日：1990-05-01
申请人： MIZUNO KK , NIPPON KOKAN KK , HIROSHIMA ALUMINIUM KOGYO
发明人： ONODA KENJI , NAGAI MASAO , TERANISHI YUKIHIRO , FUKUMOTO TADASHI , HINO YOSHIMICHI , NAKAUCHI ICHIRO , IWASAKI NORIO , MANDA HISASHI
IPC分类号： A63B53/04 , A63B102/32
摘要： PURPOSE:To improve the directivity and the flying distance of a ball, as well by constituting the part in which a preform of a reinforced fiber or a whisker is placed, and other part, of a fiber reinforced metal and a metallic stock, respectively, and also, forming the whole golf club head by a hollow integral structure, so that a sweet spot is positioned in about the center of the face surface. CONSTITUTION:By executing integral molding simultaneously a metallic stock 10 for constituting a head 1, the part in which a preform 9 of a reinforced fiber 9a or a whisker 9b is placed, and other part are constituted of a fiber reinforced metal 11 and the metallic stock 10, respectively, and also, the whole head 1 is formed by a hollow integral structure. In this head, the reinforced fiber or the whisker is placed continuously in a form of a preform extending from a neck part to the face surface and a toe part and is reinforced as a fiber reinforced metal, and also, other part of the head is formed by the metallic stock being a matrix. In such a way, the head being beautiful in its external apparance and having satisfactory moldability can be obtained since no microporosity is generated, and there is no part of impregnation failure nor the part of a dumpling state such as in a conventional head.

5. 发明专利

JPH03174312A METALLIC PARTICLE-CONTAINING CARBON FIBER SHEET AND ITS PRODUCTION 失效
公开(公告)号：JPH03174312A
公开(公告)日：1991-07-29
申请号：JP30906389
申请日：1989-11-30
申请人： NIPPON KOKAN KK
发明人： OKADA TOSHIHIKO , ISHIOKA MUNEHIRO , MATSUBARA KENJI , NAKAUCHI ICHIRO , FUKUMOTO TADASHI , FUJITA YONEAKI
IPC分类号： B32B15/02 , B22F3/22 , C01B31/00 , D21H13/50 , D21H17/67
摘要： PURPOSE:To control thermal expansion by wet-forming a slurry obtained by suspending metallic particles and carbon whiskers produced by a vapor-phase method in water into the sheet. CONSTITUTION:The metallic particles of Cu, Al, etc., having 1-500mum diameter and the carbon whiskers obtained by a vapor-phase method and having about 0.1-10mum diameter and about 10mum-5mm length are charged into water in the volume ratio of about 99/1-10/90, a dispersant such as a surfactant is added, as required, and the mixture is agitated to obtain a uniform slurry. The slurry is then wet-formed into a cake. The cake is press-formed at a temp. between the softening point and m.p. of the contained metal and at about 10-500kg/cm pressure for about 0.2-3hr to obtain a metallic particle-contg. carbon fiber sheet having about 0.1-5mm thickness and about 5-13X10 / deg.C thermal expansion coefficient.

6. 发明专利

JPH0312152A PRODUCTION OF DENTAL PLATE 失效
公开(公告)号：JPH0312152A
公开(公告)日：1991-01-21
申请号：JP14791089
申请日：1989-06-10
申请人： NIPPON KOKAN KK
发明人： KANI KOKI , FUKUMOTO TADASHI
IPC分类号： A61C13/007 , A61C13/01
摘要： PURPOSE:To more easily adhere the dental plate and resin than in the case of bringing an anchor into sliding contact by molding a metallic plate to such a shape as to come into tight contact with the palate to prepare a stock plate for the dental plate, then thermally spraying and fixing metallic particles to the resin adhering layer of the stock plate. CONSTITUTION:The metallic plate 6 consisting of Ti, etc., is molded to the palate shape to prepare the stock plate for the dental plate. The metallic particles 9 of Ti metal, etc., are then fixed by thermal spraying to the resin adhering surface of the stock plate. The mechanical binding strength to the resin is greatly increased by fixing the metallic particles to the resin adhering surface of the stock plate for the dental plate in such a manner. In addition, the problem of surface roughening of the dental plate as in the case of welding the anchor thereto is eliminated by utilizing the thermal spraying method.

7. 发明专利

JPH0312151A MANUFACTURE OF DENTURE 失效
公开(公告)号：JPH0312151A
公开(公告)日：1991-01-21
申请号：JP14790989
申请日：1989-06-10
申请人： NIPPON KOKAN KK
发明人： KANI KOKI , FUKUMOTO TADASHI
IPC分类号： A61C13/007 , A61C13/01
摘要： PURPOSE:To prevent a dental plate from being deformed by the polymerizing shrinkage of resin and thermal shrinkage at the time of cooling by dividing the resin into plural blocks before or after the resin is set, removing the distortion of the dental plate and next integrating the divided pars of the resin. CONSTITUTION:A dental plate 1 is formed and afterwards, artificial teeth 2 are fixed through resin 3 to the dental plate 1. In such a case, since the resin 3 is shrinked at the time of polymerization and thermally shrinked by cooling, the dental plate 1 is deformed by this shrinkage. In order to reduce this deformation, the resin 3 is divided into plural blocks 3A. Thus, the distortion of the dental plate 1 to be generated by the shrinkage of the resin 3 to be caused by the polymerization and cooling is removed. After the distortion is removed, a coupling material 9 of the same quality as the resin 3 is charged in a groove, which is formed when the resin 3 is divided, and the divided parts of the resin 3 are integrated. Thus, since the distortion of the dental plate can be removed, the dental plate can be manufactured with higher accuracy.

8. 发明专利

JPH02213339A MANUFACTURE OF DENTURE 失效
公开(公告)号：JPH02213339A
公开(公告)日：1990-08-24
申请号：JP3479789
申请日：1989-02-14
申请人： NIPPON KOKAN KK
发明人： KANI KOKI , FUKUMOTO TADASHI , FUJITA YONEAKI , MATSUOKA YUJI
IPC分类号： A61C13/007 , A61C13/01
摘要： PURPOSE:To easily bond a denture base and a resin by applying an adhesive to the resin bonding surface of the denture base to bond metal particles to the surface and applying impact liquid pressure to the particles through a waterproof sheet to fix the same to the denture base and mounting artificial teeth to the denture base through the resin. CONSTITUTION:An adhesive is applied to the resin bonding surface of a preliminarily molded denture base 1 made of Ti. For example, the denture base 1 is molded by impact liquid pressure molding. Next, particles 9 made of Ti are bonded to the bonding surface coated with the adhesive and bonding surface is subsequently covered with a waterproof resin sheet 7 to be set to an impact liquid pressure molding apparatus and a projectile 8 is fired into the container 4 of the impact liquid pressure molding apparatus. By this method, the metal particles 9 are partially embedded in the denture base 1 to be integrated with the denture base 1. Subsequently, artificial teeth 2 are fixed to the denture base 1 through a resin 3 according to a usual method. The resin 3 is strongly bonded to the denture base 1 by the metal particles 9 integrated with the denture base 1 forming projections.

9. 发明专利

JPH02213337A MANUFACTURE OF DENTURE 失效
公开(公告)号：JPH02213337A
公开(公告)日：1990-08-24
申请号：JP3479589
申请日：1989-02-14
申请人： NIPPON KOKAN KK
发明人： KANI KOKI , FUKUMOTO TADASHI , FUJITA YONEAKI , MATSUOKA YUJI
IPC分类号： A61C13/007 , A61C13/01
摘要： PURPOSE:To reduce the deformation of a denture base due to the shrinkage at the time of the chemical reaction of a resin by restricting the denture base. CONSTITUTION:Artificial teeth 2 are fixed to a denture base 1 molded by impact liquid pressure molding. At this time, projections 10 are provided to the mold 9 of the denture base 1 and, at the time of the solidification of a resin 3, the denture base 1 is pressed and bending force is applied to the denture base 1 in the direction shown by a solid line. By this method, the contraction force acting on the denture base 1 in the direction shown by a dotted line at the time of the solidification of the resin 3 is negated. As a result, the deformation of the denture base 1 is reduced to a large extent.

10. 发明专利

JPH02213334A MANUFACTURE OF TOOTH CROWN 失效
公开(公告)号：JPH02213334A
公开(公告)日：1990-08-24
申请号：JP3479889
申请日：1989-02-14
申请人： NIPPON KOKAN KK
发明人： KANI KOKI , FUKUMOTO TADASHI , FUJITA YONEAKI , MATSUOKA YUJI
IPC分类号： A61C5/77
摘要： PURPOSE:To simply form a thin crown by introducing a metal plate preliminarily molded into a semispherical shape into a recessed mold having a crown shape and molding the same by a shock liquid pressure molding method. CONSTITUTION:A recessed mold 1 having a crown shape is formed and a thin metal plate 2 composed of Ti preliminarily molded into a semispherical shape is subsequently introduced into the recessed mold 1. Then, the metal plate 2 is molded into the crown shape by a shock liquid pressure molding method. In shock liquid pressure molding, for example, the recessed mold 1 is fixed to the bottom part of a container 3 having water received therein along with the metal plate 2 made of Ti and a plastic projectile 5 is fired into the water 4 in the container 4. The metal plate 2 is molded into the shape of the recessed liquid pressure generated by this operation.

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