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71. 发明专利

JPH04157197A ELECTROLYTIC TREATMENT OF SURFACE OF METALLIC MATERIAL AND ELECTRODE USED THE SAME 失效
公开(公告)号：JPH04157197A
公开(公告)日：1992-05-29
申请号：JP28106990
申请日：1990-10-19
申请人： KAWASAKI STEEL CO
发明人： KIMURA MITSUO , IMAZU TSUKASA , MATSUZAKI AKIHIRO , SAITO YOSHIYUKI
IPC分类号： C25D5/06
摘要： PURPOSE:To enable high-quality surface treatment at a job site by impregnating paste for surface treatment into a pad as an electrode, impregnating and holding an electrolyte soln. in metal wool obtd. by making Ni, Cu, etc., fibrous and carrying out electrolytic surface treatment. CONSTITUTION:A block-shaped electrode 13, a metal wool electrode 14 and a pad 15 holding impregnated paste are laminated and integrated to obtain an electrode 12. This electrode 12 is rotatably set in an electrolytic treating device 11 and covered with a housing case 16. A leakage of paste 18 is prevented with a sealing material 17 at the side of a steel sheet 21 to be plated and the paste 18 is automatically fed from a feed pipe 19 and discharged from a discharge pipe 20. Electric current is supplied from a power source 25 to a driving motor 23 for a rotation axis 22 through an electrically conductive brush and the electrode 12 is rotated.

72. 发明专利

JPH03199393A PARTIAL ELECTROLYTIC TREATMENT OF METALLIC MATERIAL AND DEVICE 失效
公开(公告)号：JPH03199393A
公开(公告)日：1991-08-30
申请号：JP33630589
申请日：1989-12-27
申请人： KAWASAKI STEEL CO
发明人： KIMURA MITSUO , IMAZU TSUKASA , SAITO YOSHIYUKI , KONDO MIKIO
IPC分类号： C25D5/06
摘要： PURPOSE:To easily perform partial electrolytic treatment for the surface of metallic material at a high efficiency by sticking a pad impregnated with pasty electrolyte on the face to be treated of the metallic material and conducting electricity via the electrolyte while moving an electrode thereon. CONSTITUTION:For example, in the case of performing plating treatment on the welding bead 5 of steel sheet 4, a pad 1 impregnated with paste for plating is stuck on the welding bead 5 to be plated. Then while an electrode 2 is moved thereon, electricity is conducted to the welding bead 5 from a power source 3 via paste for plating and plating is performed on the welding bead 5. Thereby partial plating is easily performed on the welding bead 5 at a high efficiency. This partial electrolytic treatment is easily applied to passive treatment of the surface of metallic material and various partial treatment such as coloring.

73. 发明专利

JPH02232398A ELECTROLYTIC TREATMENT DEVICE FOR METALLIC MATERIAL 失效
公开(公告)号：JPH02232398A
公开(公告)日：1990-09-14
申请号：JP13046489
申请日：1989-05-24
申请人： KAWASAKI STEEL CO
发明人： IMAZU TSUKASA , KIMURA MITSUO , SAITO YOSHIYUKI , MIYANO YOSHIO , ISHIWATARI NOBUYOSHI , KONDO MIKIO
IPC分类号： C25D5/06 , C25D17/00 , C25D17/14 , C25F1/02 , C25F3/16 , C25F7/00
摘要： PURPOSE:To allow the easy execution of the electrolytic treatment of a metallic material to be treated by supplying a pasty electrolyte between a rotating cylindrical electrode and the metallic material and rotating and energizing the cylindrical electrode. CONSTITUTION:A pad 4 installed on the cylindrical electrode 1 comes into contact with the material 3 to be treated when the electrode rotates. The high- quality electrolytic pickling, plating, and passivation treatment of the metallic material to be treated are executed by the pasty electrolyte packed into the spacing between the cylindrical electrode 1 and the material 3 to be treated through a piping 9-a paste strap 6-a supply port 5 from a paste cell 7.

74. 发明专利

JPH02225691A SUBSTRATE TREATMENT OF METALLIC MATERIAL WITH SUPERIOR CORROSION RESISTANCE 失效
公开(公告)号：JPH02225691A
公开(公告)日：1990-09-07
申请号：JP234189
申请日：1989-01-09
申请人： KAWASAKI STEEL CO
发明人： KIMURA MITSUO , IMAZU TSUKASA , SAITO YOSHIYUKI , ISHIWATARI NOBUYOSHI , TOTSUKA NOBUO
IPC分类号： C25D5/06
摘要： PURPOSE:To simply plate a metallic material and to perform the substrate treatment of the metallic material with superior corrosion resistance and improved durability after coating by holding paste for plating between the metallic material and a counter electrode and supplying electric current between the metallic material as the cathode and the counter electrode as the anode. CONSTITUTION:Paste 4 for plating is fed from a paste feeder 5 fitted with a regulating cock 9, a pressing means 10, etc., to a water permeable pad 1 through a paste trap 8 and the fed paste 4 is oozed from the pad 1 and held between a counter electrode 2 and a steel sheet 3. Electric current is then supplied between the steel sheet 3 as the cathode and the counter electrode 2 as the anode through a power source device 6 and wires 7. The steel sheet is simply plated without requiring a large-scale equipment and the substrate treatment of the steel sheet is performed. Before the plating, the surface of the steel sheet may be treated by supplying electric current between the steel sheet as the anode and a counter electrode as the cathode or carrying out shot blasting. The plated steel sheet is preferably coated with primer, chromate, etc.

75. 发明专利

JPH02182893A ELECTROLYTIC TREATMENT DEVICE 失效
公开(公告)号：JPH02182893A
公开(公告)日：1990-07-17
申请号：JP79589
申请日：1989-01-05
申请人： KAWASAKI STEEL CO
发明人： IMAZU TSUKASA , KIMURA MITSUO , SAITO YOSHIYUKI
IPC分类号： C25D5/06 , C25D17/14 , C25F7/00
摘要： PURPOSE:To efficiently perform high-quality site treatment for the surface of metallic material by leaching paste for surface treatment which is supplied through the outflow ports provided to the outer circumferential face of a rotatably driven roll for an electrode via a cylindrical pad brought into contact with the metallic material. CONSTITUTION:Paste 12 for surface treatment of metallic material is supplied into a hollow columnar roll 16 for an electrode from a paste tank 28 with a pump 30 and thereafter allowed to flow cut through a plurality of outflow ports 56 bored to the outer circumferential face thereof. Furthermore a cylindrical pad 22 covering the roll 16 for the electrode is impregnated with paste 12 and this paste 12 is leached on the outer circumferential face thereof. The roll 16 for the electrode is rotated and driven by a roll driving system 18 contg. a motor 40. Together therewith, the pad 22 is rotated and driven to the direction reverse to the roll 16 by a pad driving source 24 consisting of a motor 48 and a rotary shaft 50 and brought into contact with metallic material 14. In this state, current is allowed to flow between the roll 16 and the metallic material 14 via this paste 12 by a power source device 26 and thereby electrolytic treatment of the surface of metallic surface 14 is performed.

76. 发明专利

JPH02125900A EQUIPMENT FOR ELECTROLYTICALLY TREATING LOCAL AREA OF SURFACE OF METALLIC MATERIAL 失效
公开(公告)号：JPH02125900A
公开(公告)日：1990-05-14
申请号：JP27865688
申请日：1988-11-04
申请人： KAWASAKI STEEL CO
发明人： IMAZU TSUKASA , KONDO MIKIO , MIYANO YOSHIO , ISHIWATARI NOBUYOSHI , KIMURA MITSUO
IPC分类号： C25D5/06 , C25D5/00 , C25D17/00 , C25D17/14 , C25F3/00 , C25F7/00
摘要： PURPOSE:To efficiently perform surface treatment of metallic material at high quality by bringing a hollow electrode into contact with the part to be treated of the surface of metallic material and leaching pasty electrolytic liquid from the surface of the hollow electrode via a pad and electrolytically treating the local part of the metallic material. CONSTITUTION:A hollow electrode 7 covered with a pad 8 is brought into contact with the welded part 10 of metallic material 9. Pasty electrolytic liquid in a paste tank 2 is supplied into the hollow electrode 7 through a feed port 14 via a pipe 4, a flow rate control valve 5 and a connection pipe 6 by a pump 3. Both the hollow electrode 7 and metallic material 9 are connected to a power source device 11 via the respective wirings 12. The paste supplied to the hollow electrode 7 is jetted through the electrode holes 15a and leached out through the pad 8. Electrolytic treatment is performed by transferring the hollow electrode 7 by a pipe 4 while allowing current to flow. Further a controlling means 13 for leaching out paste is built-in to the inside of the hollow electrode 7 and leached amount of paste is controlled by regulating the aperture part of both the holes 15b and the electrode holes 15a by operation of a handle 16. Thereby electrolytic treatment of the welded part 10 is efficiently performed by a simple method at high quality.

77. 发明专利

JPS63270444A STEEL FOR LINE PIPE HAVING EXCELLENT SOUR RESISTANCE 失效
公开(公告)号：JPS63270444A
公开(公告)日：1988-11-08
申请号：JP13826887
申请日：1987-06-03
申请人： KAWASAKI STEEL CO
发明人： KIMURA MITSUO , TOTSUKA NOBUO , KURISU TAKAO
IPC分类号： C22C38/00 , C22C38/50
摘要： PURPOSE:To obtain a steel for a line pipe having excellent sour resistance by specifying the compsn. consisting of C, Si, Mn, Al, P, S, Ca, Se and Fe. CONSTITUTION:The titled steel contains, by weight, 0.01-0.25% C, 0.010-0.50% Si, 0.70-2.00% Mn, 0.01-0.10% Al,

78. 发明专利

JPS6334394A HEAT-INSULATING DOUBLE PIPE HAVING EXCELLENT HYDROGEN PENETRATION RESISTANCE 失效
公开(公告)号：JPS6334394A
公开(公告)日：1988-02-15
申请号：JP17708086
申请日：1986-07-28
申请人： KAWASAKI STEEL CO
发明人： KIMURA MITSUO , KURISU TAKAO
IPC分类号： F16L9/18 , F16L59/06

79. 发明专利

JPS633176A HEAT PIPE MADE OF ANTICORROSIVE STEEL 失效
公开(公告)号：JPS633176A
公开(公告)日：1988-01-08
申请号：JP14609286
申请日：1986-06-24
申请人： KAWASAKI STEEL CO
发明人： KURISU TAKAO , KIMURA MITSUO , YAMANE YASUYOSHI
IPC分类号： F28F19/06 , C23C30/00 , F28D15/02
摘要： PURPOSE:To provide a heat pipe manufactured at a low cost and excellent in a heat transferability by forming in a specified thickness a layer coated with one or more members of metals selected form a group consisting of Cr, Ti, Cu, Ni and Al, on the inner surface of a pipe. CONSTITUTION:A layer coated with one or more members of metals selected from a group consisting of Cr, Ti, Cu, Ni, Pb and Al is formed in a thickness of 5-100mum. The temperature at the central port of the pipe is assumed Ta and that at the tip end of the pipe Tc as a method of representing the deterioration of the heat transfer property caused by the generation of H2 due to corrosion of the heat pipe. At that time, when no corrosion occurs and no H2 is generated, Ta becomes substantially equal to To, and the difference T= Ta-Tc becomes zero. In a pipe coated on its inner surface with any of metals such as Cr, Ti, Cu and Al in a thickness of 6mum or more the value of T becomes 10 deg.C or less so that an excellent heat transferability can be maintained. On the other hand, even when the thickness of the metal is 100mum or more, the effect is not exhanced so much, and hence in consideration of economity, it is necessary to make it 100mum or less.

80. 发明专利

JPS6213557A STEEL FOR STEAM INJECTION PIPE 失效
公开(公告)号：JPS6213557A
公开(公告)日：1987-01-22
申请号：JP15255385
申请日：1985-07-12
申请人： KAWASAKI STEEL CO
发明人： KIMURA MITSUO , TOTSUKA NOBUO , KURISU TAKAO , NAKAI YOICHI
IPC分类号： C22C38/00 , C22C38/44 , C22C38/54 , C22C38/58
摘要： PURPOSE:To inhibit the permeation of hydrogen through a steel for a double- walled pipe in a corrosive environment and to avoid reduction in the heat insulating efficiency by specifying the amounts of C, Si, Mn, Cr, Mo and Al in the steel and the relation between Cr and Mo. CONSTITUTION:The composition of a steel for a heat insulating double-walled pipe is composed of, by weight, 0.10-0.50% C, 0.010-0.50% Si, 0.2-2.0% Mn, =0.5%), 0.001-0.10% Al and the balance Fe with inevitable impurities. The composition may contain one or more among 0.001-0.15% V, 0.001-0.1% Ti, 0.001-0.1% Nb, 0.0005-0.005% B and 0.05-0.6% Cu or may further contain 0.001-0.006% Ca. The steel for a double-walled pipe has superior resistance to the permeation of hydrogen and the heat insulating efficiency can be maintained even after use for a long period.

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