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1. 发明专利

JPH01310763A CORROSION-INHIBITIVE LINING AND ITS DEVICE 失效
公开(公告)号：JPH01310763A
公开(公告)日：1989-12-14
申请号：JP14203988
申请日：1988-06-09
申请人： NIPPON STEEL CORP , DAI ICHI HIGH FREQUENCY CO LTD
发明人： FUSHIDA TAKASHI , IMAMURA TATSUMI , NAKAAGE SUSUMU , KUROKI RYOICHI
IPC分类号： B05D7/14 , B05B13/06 , B05D7/22 , B05D7/24
摘要： PURPOSE:To make possible the prevention of deterioration of working environments, improvement of material yield and application of a uniformly thick coat by ejecting resin powder in a spraying box, and applying/melting the resin powder on the surface of a metal to be heated, while aspirating and recovering a floating resin powder which does not stick and melt. CONSTITUTION:An exposed metal section 12 is heated from an opposite side to a spraying box 42 by a burner 21 of a heating device 2 at more than a melting-point temperature of resin powder 63. Consequently, the resin powder 63 ejected from a spray nozzle 45 in the spraying box 42 melts, and sticks and melts with the existing lining coat into a mixed film. The portion which does not stick and melt of the resin powder 63 ejected from the spray nozzle 45 floats in the spraying box and then is sucked into a powder recovery device 6. Thus the density of powder can be controlled. Therefore, the coat thickness can be controlled by adjusting the spraying time or the movement speed of the spraying box 42. This makes it possible to obtain a uniformly thick lining at all angles of spraying.

2. 发明专利

JPH10113991A RESIN COATING METHOD FOR CABLE UNIT AND HEAT SEAL DEVICE THEREFOR 失效
公开(公告)号：JPH10113991A
公开(公告)日：1998-05-06
申请号：JP28939096
申请日：1996-10-11
申请人： NIPPON STEEL CORP , DAI ICHI HIGH FREQUENCY CO LTD
发明人： CHIKADA KYOJI , KUROKI RYOICHI
IPC分类号： B29C63/42 , B29L9/00 , B29L23/00
摘要： PROBLEM TO BE SOLVED: To provide a method for easily applying a resin coat on a short section with respect to the longitudinal direction of a cable unit having a large diameter socket at both ends of the cable main body. SOLUTION: A resin sheet 11 having a thermally contracting property considerably longer than the outer periphery length of a cable main body is rolled so as to surround the cable main body 1. By superimposing both ends thereof, a superimposed part 12 is formed. By detaching the superimposed part 12 from the surface of the cable main body 1, placing a first force piston 15 inside thereof, placing a second force piston 16 outside thereof, and pressing and heating the superimposed part 12 by both force pistons, a cylindrical member 11A can be formed out of the resin sheet. The cylindrical member 11A is moved to a position for the resin coat. By the thermal contraction at the position, a cable unit is coated. Accordingly, an optional position with respect to the longitudinal direction of the cable unit can be resin coated preferably.

3. 发明专利

JPH047124A BONDING METHOD AND APPARATUS OF HEAT-SHRINKABLE COVERING MATERIAL 失效
公开(公告)号：JPH047124A
公开(公告)日：1992-01-10
申请号：JP10975490
申请日：1990-04-25
申请人： DAI ICHI HIGH FREQUENCY CO LTD , NIPPON STEEL CORP
发明人： TSUCHIDA ISAMU , YAMATANI YATARO , MATSUOKA KIYOMI , KUROKI RYOICHI
IPC分类号： B29C35/08 , B29C63/00 , B29C63/42 , B29C65/32 , B29C65/66 , B29K105/02 , B29L23/00
摘要： PURPOSE:To satisfactorily bond heat-shrinkable covering material onto the outer surface of pipe by a method wherein the heat-shrinkable covering material is mounted onto the outer surface of the pipe and induction-heatable heat generating tube and induction heating coil are arranged around the covering material and energized and, at the same time, heat is generated in the pipe inside the covering material by induction heating. CONSTITUTION:When energizing of induction heating coil 7 is started, the temperature of heat generating tube 8 is raised by induction heating and covering material 13 is heat-shrunk by being applied with radiation heat and, at the same time, the temperature of the space in an oven is raised and, simultaneously, the heat of pipe 2 is raised by induction heating. The covering material 13 starts to shrink peripherally from its middle so as to tightly adhere to the outer surface of the pipe and the shrunk part of the material moves toward both ends. As a result, the air between the outer surface of the pipe and the covering material 13 is expelled from the middle of the material to both ends, resulting in leaving no bubbles between the outer surface of the pipe and the covering material 13. When the covering material 13 is shrunk and brought into close contact with the outer surface of the pipe, the bonding layer of the covering material 13 is melted by the heat, which is conducted from the outer surface of the covering material 13 and from the outer surface of the pipe, resulting in realizing better adhesion between the covering material 13 and the outer surface of the heating pipe. Further, the contact area between the covering material 13 and film 12 is heated and melt-bonded through the heating from the outer surface of the covering material 13 and the conduction of heat from the pipe 2 to the film 12.

4. 发明专利

JPH0386678A MOBILE TYPE CABLE PROCESSING DEVICE 失效
公开(公告)号：JPH0386678A
公开(公告)日：1991-04-11
申请号：JP22258489
申请日：1989-08-29
申请人： NIPPON STEEL CORP , DAI ICHI HIGH FREQUENCY CO LTD
发明人： TSUCHIDA ISAMU , HOJO TETSUO , TANIGUCHI YASUYUKI , KISHIHARA SHIGEKI , KUROKI RYOICHI
IPC分类号： B61B7/00 , B61B13/04 , H02G1/02
摘要： PURPOSE:To facilitate a cable processing work by installing a mechanism for carrying out processing for a cable a car body, and also installing thereon a step-by-step actuator having a pair of clampers which repeat holding and tightening/loosening of the cable and a mechanism for extending and contracting the interval of the clampers. CONSTITUTION:A car body 4 on which a cable covering mechanism 20 is mounted is laid in a shiftable manner along a cable 1 by rolls 5 and 6. Further, a fixed clamper 10 and a shiftable clamper 9 which are formed integrally are installed on the car body 4, and the car body 4 is shifted along the cable 1 by the extension and contraction of an air cylinder 12, alternately repeating the tightening and loosening of the cable 1. A step-by-step actuator 8 is composed of the clampers 9 and 10 and the cylinder 12. The car body 4, therefore, shifts by each constant quantity intermittently along the cable 1, and the processing such as the covering of the cable is carried out by a covering mechanism 20 even for the inclined cable, through the mobile traveling.

5. 发明专利

JPH0252915A LARGE DIAMETER HEATING DEVICE AND BURNER 失效
公开(公告)号：JPH0252915A
公开(公告)日：1990-02-22
申请号：JP20009288
申请日：1988-08-12
申请人： DAI ICHI HIGH FREQUENCY CO LTD , NIPPON STEEL CORP
发明人： KUROKI RYOICHI , IMAMURA TATSUMI , FUSHIDA TAKASHI , FUJITA MASATSUGU
IPC分类号： F23D14/58
摘要： PURPOSE:To perform resin lining on the internal surface of a large diameter pipe by heating along the entire periphery of the large diameter pipe by burners provided on trucks while traveling the trucks along a rail device which is mounted on the periphery of a portion, to be heated, of the large diameter pipe. CONSTITUTION:A rail device 5 consists of a pair of rails 7 made of H-steel, a frame 8 that holds the rails 7 at a specified interval, reinforcement members 9, jack bolts 10, etc. The rail device 5 is mounted on a welded joint part of a large diameter pipe 1 being resin-lined on its internal surface, at the position a specified internal apart from the pipe wall and across the welded joint part. A truck 16 is mounted on the rail device 5, and a driving truck 16A travels along the large diameter pipe 1 in the peripheral direction. Combustion gas is supplied to burners 28 and 29 mounted on heating trucks 16B and 16C to heat the pipe wall by the burners 28 and 29. Thermoelastic resin 52 is contacted by an adequate method on the internal surface to be heated. The track 16 travels around the whole periphery of the large diameter pipe 1 to heat the pipe wall throughout the periphery, so that resin lining is formed on the internal surface.

6. 发明专利

JP2000274564A SHELL CONNECTING JOINT AND SHELL WITH JOINT MECHANISM 失效
公开(公告)号：JP2000274564A
公开(公告)日：2000-10-03
申请号：JP6107899
申请日：1999-03-09
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： KUROKI RYOICHI
IPC分类号： F16L21/04
摘要： PROBLEM TO BE SOLVED: To provide a shell connecting joint simple in structure and with a small residing region inside to connect a shell free to extend and contract and to slacken. SOLUTION: A joint main body 4 is constituted by extending one end of a shell of roughly the same size in cross-section as a shell 2 to be connected to it in diameter in size free to insert the shell 2 into it, and a joint 1 is constituted by installing a fastening mechanism 5 furnished with a cross-section L type housing 8, packing 9, a clamp 10, a tightening means 12, etc., so as to overhang outward in the radial direction on a diametrically extended end part 4a. In this constitution, it is possible to connect the shell 2 free to extend and contract and to slacken by inserting the shell 2 in the fastening mechanism 5 and the end part 4a extended in diameter of the joint main body and sealing an inner surface of the packing 9 by pressing it on an outer surface of the shell 2 by fastening the packing 9 in the shell axial direction.

7. 发明专利

JPH10329269A RESIN-COATED METAL MATERIAL 失效
公开(公告)号：JPH10329269A
公开(公告)日：1998-12-15
申请号：JP15616597
申请日：1997-05-30
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： HANAMOTO YUKIMITSU , KUROKI RYOICHI , KOBAYASHI RYOJI
IPC分类号： B05D7/14 , B05D7/22 , B05D7/24 , B32B1/08 , B32B15/08 , B32B15/085
摘要： PROBLEM TO BE SOLVED: To incorporate easiness of long term durability and external appearance regulation, by specifying a melt flow rate of a polyethylene inner layer coating to polyethylene outer layer coating formed in a laminated state on a surface of a base metal material. SOLUTION: Polyethylene powder for an inner layer coating is brought into contact with a surface of a clean base metal material heated to a temperature higher, for example, by 100 to 200 deg.C than a melting point of polyethylene to form an inner layer coating 2. Then, an outer layer coating 3 is formed continued to the formation of the coating 2 within one time heating chance. Here, as the polyethylene for the outer coating, polyethylene having a lower melting point than that of the polyethylene for the inner coating is used. And, the coating 2 of rough polyethylene having a melt flow rate of 1 to 7 g/10 min is functioned as a coating layer of considering anticorrosion, and the coating 3 of the polyethylene having a plenty of fluidity of 8 to 10 g/10 min of a melt flow rate is functioned as a coating layer of considering an external appearance.

8. 发明专利

JPH07310872A CONNECTING METHOD FOR PIPE AND BOLT USED FOR THE METHOD 失效
公开(公告)号：JPH07310872A
公开(公告)日：1995-11-28
申请号：JP12468194
申请日：1994-05-16
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： MATSUBARA YOICHI , KUROKI RYOICHI
IPC分类号： F16B31/02 , F16L21/04 , F16L23/02
摘要： PURPOSE:To enable quick and suitable clamping to be performed by using an electric clamping machine, etc., by forming a breaking groove to be broken by a torque value for generating flange clamping target surface pressure determined according to a pipe material on a bolt to be used for clamping when the pipes are connected to each other. CONSTITUTION:A flange part of a coated metallic pipe provided with a flange or a plastic pipe provided with a flange wherein the inner surface or both inner and outer surfaces including the flange surface are coated by materials taking resin or rubber as a major component is bolted, thereby pipes are connected to each other. In this case, a breaking groove to be broken by a torque value for generating flange clamping target surface pressure determined according to a pipe material is formed on the bolt to be used in clamping. For example, in a bolt A provided with a hexagonal head part 1 and a twelve angular pin tail 3 on the tip of a screw 2, a breaking groove 4 is formed between the screw 2 and the pin tail 3. A nut 6 for clamping is screwed to the screw 2 through a washer 5. Thereby, quick and suitable clamping is performed by using an electric clamping machine, etc.

9. 发明专利

JPH11158653A COMBINEDLY COATED STEEL 失效
公开(公告)号：JPH11158653A
公开(公告)日：1999-06-15
申请号：JP34065297
申请日：1997-11-26
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： KUROKI RYOICHI , KOBAYASHI RYOJI , OWADA YUTAKA
IPC分类号： B05D7/14 , C23C22/82 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To make it possible to superiorly perform combined use of thermoplastic resin in the principal part by allowing a δ1 alloy phase to appear in the desired region of the surface of a hot dip galvanized steel by means of blasting or grinding and then forming a fusion coating layer of thermoplastic resin via a primer layer having at least a chromating layer. SOLUTION: The chromating layer has a function of inhibiting rusting, etc., and can be converted into a surface suitable for formation of a resin coating layer as upper layer. As to the chromating layer, it is preferable to use a chromating layer of application type, which is formed by applying a required amount of treatment solution previously converted in part and then applying heating to allow conversion to promote. The resin coating layer to be formed on the primer layer is formed by fusing thermoplastic resin such as polyolefine. It is preferable to perform this fusion by the powder fusion method where a resin powder is fused by being brought into contact with the surface of an object which is heated to a temp. higher by >=100 deg.C than the melting point of the resin. This method can be applied to an internal pipe surface, a bent pipe, etc.

10. 发明专利

JPH1191033A RESIN-COATED MATERIAL AND COMPOSITELY COATED-METAL MATERIAL 失效
公开(公告)号：JPH1191033A
公开(公告)日：1999-04-06
申请号：JP27497597
申请日：1997-09-24
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： HANAMOTO YUKIMITSU , KUROKI RYOICHI , KOBAYASHI RYOJI
IPC分类号： E04B1/66 , B05D7/14 , B32B15/08 , B32B15/085
摘要： PROBLEM TO BE SOLVED: To suppress the occurrence of penetration damage due to impact or the like without the need of an excessive thickness of the film by forming a main body coat layer of thermoplastic resin on the surface of metal material, and forming a group of projections integrated with the main body coat layer on the surface of the main body coat layer. SOLUTION: A main body coat layer 2 of thermoplastic resin is formed on the surface of metal material 1, and a group of projections 3 integrated with the main body coat layer 2 is formed on the surface of the main body coat layer 2. In addition, the composite metal material can also be formable by setting an ancillary coat layer of mortar hardening matter on the surface of the resin coat metal material 2. As thermoplastic resin for the main body coat layer, it can exemplarily polypropylene, polyamide, polyyinyl chloride, and fluorocarbon resin as well as polyethylene. Material of the projections 3 to be provided on the resin coat metal material is not limited, however, there are given suitably thermoplastic resin that can be fused with the main body coat layer 2, in particular, resin being in the same system as the main body coat layer 2.

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