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1. 发明专利

JPH10203503A MASKING APPARATUS FOR STEEL PIPE END 失效
公开(公告)号：JPH10203503A
公开(公告)日：1998-08-04
申请号：JP695597
申请日：1997-01-17
申请人： SUMITOMO METAL IND , KAWANOE ZOKI KK
发明人： TSURUTA KAZUO , ISHIZAKI TERUAKI , MIURA FUMIAKI , MITSUKANE TATSUNORI , SUGI MASAMICHI
IPC分类号： B65B11/04
摘要： PROBLEM TO BE SOLVED: To allow both internal and external faces of a steel pipe to be masked simultaneously to improve working efficiency and productivity by including first and second tape application rollers or the like for sticking tapes cut into a predetermined size to the internal and external faces of the steel pipe in a masking apparatus for sticking a tape to a steel pipe end. SOLUTION: The masking apparatus 1 is for sticking a tape to an end 4 of a steel pipe 3 horizontally mounted on turning rolls 2..., wherein an internal tape application mechanism 30 is attached to a stand 12 mounted on a moving carrier 8 so that the mechanism 30 can be raised/lowered, while an external tape application mechanism 70 and a brush roll 15 are attached. The internal tape application mechanism 30 comprises a first wound tape holding shaft, a first vacuum roll for guiding the tape while sucking, a first swing mechanism for two-dimensionally moving the roll, a first tape cutter for cutting the tape, a first tape application roll for pushing the tape against an internal face of the steel pipe and so on. The external tape application mechanism 70 is also constituted in an approximately similar manner.

2. 发明专利

JPH0351125A STEEL FOR RIVER AND PORT STRUCTURAL MATERIAL HAVING DECORATIVE SURFACE 失效
公开(公告)号：JPH0351125A
公开(公告)日：1991-03-05
申请号：JP18856989
申请日：1989-07-20
申请人： MITSUI KINZOKU TORYO KAGAKU KK , SUMITOMO METAL IND
发明人： SANETO KOICHI , NARABE HIROSHI , NAKAMOTO YUKIO , HIRONO ICHIRO , YAMAMOTO AKIRA , TANAKA SADAO , ISHIZAKI TERUAKI , IIDA HISAO
IPC分类号： E02B3/06 , B32B15/08 , B32B15/095
摘要： PURPOSE:To sufficiently interface the above steel with the circumferential environment when it is executed and to enhance weathering resistance by utilizing the steel wherein a decorative surface having a multicolored pattern formed of polyurethane coating is provided on one part of the exposed surface thereof. CONSTITUTION:A decorative surface having a multicolored pattern is formed by coating at least one part desirably all parts of the part exposed on seawater with corrosion resistant coating. As this corrosion resistant coating, colored polyurethane coating is optimally utilized. A room temp. setting twin pack polyurethane resin product which is constituted of both a first liquid and a second liquid described hereunder is preferably utilized especially at the point of weathering resistance and adhesive property to steel. The first liquid incorporates epoxy modified polyol and a cross- linking agent. The second liquid incorporates polyisocyanate. Thereby corrosion resistant heavy steel having various kinds of decorative surfaces is obtained. The river and port structural materials interfaced with the circumferential environment can be constructed. Mechanical strength and weathering resistance are enhanced. This steel for the structural material can be utilized in a range over a long period without causing trouble such as peeling, fading and discoloring.

3. 发明专利

JPH10118863A AUTOMATIC PIPE END PROCESSING DEVICE FOR PLASTIC COATED STEEL PIPE 失效
公开(公告)号：JPH10118863A
公开(公告)日：1998-05-12
申请号：JP28118196
申请日：1996-10-24
申请人： SUMITOMO METAL IND , OFIC CO
发明人： TSURUTA KAZUO , ISHIZAKI TERUAKI , SATOU KIICHIROU , FUJIWARA YASUNARI , SATO TOSHISHIGE
IPC分类号： B23B5/16 , B23P13/00 , B23P23/02 , B24B9/00
摘要： PROBLEM TO BE SOLVED: To remove the pipe-end coating without damaging the surface of a steel pipe. SOLUTION: A automatic pipe-end processing device is made up of a steel pipe rotating device for supporting a plastic coated steel pipe P horizontally and rotating it in the circumferential direction, a carriage 2 capable of moving along rails 8 laid parallel to the steel pipe rotating device, and three pipe-end processing units 3, 4, 5 installed on the carriage 2, that is, a brush unit 3 having a rotary wire brush 21 for scraping the pipe-end coating part of the plastic coated steel pipe P, a grinding unit 4 having a grinding flap wheel 26 for grinding and removing the remaining deposits on the surface of the pipe-end, and a taper cutter unit 5 for taper-cutting the end part of a plastic coating 40. The three units 3, 4, 5 are installed at needed intervals on the circumferential direction.

4. 发明专利

JPH04150975A PREPARATION OF HEAVY CORROSION-RESISTANT STEEL SHEET PILE HAVING DECORATIVE SURFACE 失效
公开(公告)号：JPH04150975A
公开(公告)日：1992-05-25
申请号：JP27565390
申请日：1990-10-15
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO AKIRA , ISHIZAKI TERUAKI
IPC分类号： E02D31/06 , B05D1/32 , B05D7/14 , B32B15/08 , B32B15/095 , E02D5/04
摘要： PURPOSE:To obtain a product good in workability, working efficiency, economical efficiency and appearance, in preparaing a heavy corrosion-resistant resistant steel sheet pile having a decorative surface by polyurethane coating, by using a masking material composed of fiber reinforced plastic (FRP). CONSTITUTION:At first, blast treatment, chromic acid treatment or primer treatment is applied to the surface formed into a decorative surface of a steel sheet pile. Next, the undercoating of an urethane elastomer is applied and a part of the surface of the steel sheet pile is masked using a masking material composed of FRP material quality in such a state that cure to the touch advances and upper urethane elastomer coating is applied to form a pattern. At this time, when a sponge sheet is attached to the under surface of the FRP masking material to eliminate the slight gap with the undercoating film, effect is further enhanced. The FRP masking material can be easily formed into a pattern by a cutting-out method using a knife. Furthermore, the masking material has flexibility of a certain degree and also has an advantageous point such as the good close adhesiveness to the undercoating surface. By this constitution, mass production is made possible.

5. 发明专利

JPH09315751A STEEL SHEET PILE LIFTING TOOL 失效
公开(公告)号：JPH09315751A
公开(公告)日：1997-12-09
申请号：JP13548596
申请日：1996-05-29
申请人： SUMITOMO METAL IND
发明人： TSURUTA KAZUO , ISHIZAKI TERUAKI , MIURA FUMIMASA
IPC分类号： B66C1/02 , B66C1/10
摘要： PROBLEM TO BE SOLVED: To conduct complete lifting even if the face of U-shaped steel sheet pile is up or down. SOLUTION: A right inner roll 56R lowers, following a right sloped surface 102, therefore, this steel sheet pile lifting tool 1 moves to the left in an illustration, and a deviation of the center becomes small δ2. At this time, outside rolls 62L, 62R rise a little, therefore, no interference occurs in lowering the steel sheet pile lifting tool 1. Right and left inside rolls 56L, 56R reaches the inside corner of the steel sheet pile 100, which indicates that a sucker 40 sucks the flat part 101 of the steel sheet pile in a well-centered condition. When the face of the steel sheet pile 100 is down, the outside rolls 62L, 62R behaves a centering action, following the sloped surface 102.

6. 发明专利

JPH08118229A METHOD AND DEVICE FOR SEPARATING COATING OF COATED STEEL PIPE 失效
公开(公告)号：JPH08118229A
公开(公告)日：1996-05-14
申请号：JP25849094
申请日：1994-10-24
申请人： SUMITOMO METAL IND
发明人： SODA TETSUYA , ISHIZAKI TERUAKI
IPC分类号： B24B29/00
摘要： PURPOSE: To prevent incomplete grinding, and to improve productivity without damaging a steel pipe in eliminating a coating of a coated steel pipe by grinding the coating of the coated steel pipe by means of a grinding brush rotated at a high speed. CONSTITUTION: A coated steel pipe 30 coated by a coating 32 is placed on turning rolls 33, 33, and a raising/lowering base 5 is moved to the required level by jacks 6. That is, the center level of a grinding brush 12 is set to the center height of the coated steel pipe 30. Next, a second traveling truck 8 is advanced by a cylinder 9. A motor 14 is started to rotate the grinding brush 12. Simultaneously, the turning rolls 33, 33 are rotated at a low speed. The coated steel pipe 30 is rotated in the direction opposite to the rotational direction of the grinding brush 12. The grinding brush 12 is pressed to the coating 32 by a brush pressing means 22 so as to grind the steel pipe. It is desirable that a high-density twist brush formed by closely implanting wires on the outer peripheral surface of a disc is used as this grinding brush 12.

7. 发明专利

JPH07156268A PLASTIC COVERING METHOD OF STEEL PIPE 失效
公开(公告)号：JPH07156268A
公开(公告)日：1995-06-20
申请号：JP31145793
申请日：1993-12-13
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO AKIRA , ISHIZAKI TERUAKI , AKIYAMA MAKOTO
IPC分类号： B29C59/00 , B29C63/06 , B29C63/30 , B29C65/44 , B29C65/52 , B29K23/00 , B29K63/00 , B29L23/00 , B32B15/085
摘要： PURPOSE:To provide a plastic covering method, with which the ununiformities of covering layers on welding bead and on portion excluding the welding bead can be smaller in a method for covering the surface of a steel pie with a plastic sheet. CONSTITUTION:In a plastic covering method of a steel pipe, in which a semimelt or softened plastic sheet is spirally wound round the steel pipe under the condition that primer (1) is applied on the outer peripheral surface of the heated steel pipe and then covered with an adhesive (2), the temperature of the steel pipe at the application of the primer, the adhesive and the plastic sheet onto the steel pipe is set to be 90-120 deg.C. The primer (1) is a mixture of a main ingredient and a hardener in a weight ratio of the main ingredient to the hardener of 1:1.9-2.1, in which the main ingredient includes 70-80wt.% of an epoxy resin and 19-21wt.% of a Novolak-type epoxy resin, and the hardener of phenyl glycidyl ether. The adhesive is an adhesive polyethylene having the percentage of modification with maleic anhydride of 0.1-2.0wt.%.

8. 发明专利

JPH02221514A METHOD FOR MANUFACTURING STEEL PIPE PILE WITH NEGATIVE FRICTION REDUCED 失效
公开(公告)号：JPH02221514A
公开(公告)日：1990-09-04
申请号：JP4285189
申请日：1989-02-22
申请人： SUMITOMO METAL IND
发明人： YAMAMOTO AKIRA , ISHIZAKI TERUAKI
IPC分类号： E02D5/60
摘要： PURPOSE:To improve coating efficiency and quality by a method wherein melted and softened asphalt is applied on a surface of a heated steel pipe and a plastic sheet of polyolefin is wound around the pipe. CONSTITUTION:Asphalt is applied by spray with an asphalt application machine 3 on the surface of a heated steel pipe 1. In this case asphalt is hot-melted to temperature as high as 100 to 170 deg.C and applied by an asphalt booth 4 for exclusive use while securing a uniform coating film. Then a heated polyethylene sheet 6 is wound around the pipe by a polyethylene extruding machine T dice 5, pressed and press-fitted by an air knife 7 and cooled by cooling water. It is thus possible to easily secure the quality of the pipe with stability.

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