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71. 发明专利

JPS5321021A SOLUTION TREATMENT METHOD FOR PIPE 失效
公开(公告)号：JPS5321021A
公开(公告)日：1978-02-27
申请号：JP9479876
申请日：1976-08-11
申请人： HITACHI LTD
发明人： SASADA YASUHIRO , SHIFUJI EIZOU , MINATO AKIRA , IMAI KATSUYUKI , ITOU HISAO
IPC分类号： C21D9/08 , C21D9/50
摘要： PURPOSE:To carry out the solution treatment while generating the compressive residual stress at the inner surface of the stainless steel pipe and to prevent the occurrence of the stress corrosion cracking, by heating the area sensitized by welding of the austenitic stainless steel pipe to the solution treatment temperature and then by quenching the inner surface of the pipe.

72. 发明专利

JPH068913B2 失效
公开(公告)号：JPH068913B2
公开(公告)日：1994-02-02
申请号：JP16212585
申请日：1985-07-24
申请人： HITACHI LTD
发明人： OOHASHI TAKEYA , PPONDA TAKU , FURUYA YASUMASA , KASHIMURA EIJI , MINATO AKIRA , OOSUMI KATSUMI , AIZAWA MOTOHIRO
IPC分类号： G21F9/00 , G21D1/00 , G21D3/08

73. 发明专利

JPH0254435B2 失效
公开(公告)号：JPH0254435B2
公开(公告)日：1990-11-21
申请号：JP8972482
申请日：1982-05-28
申请人： HITACHI LTD
发明人： SUZUKI KATSUMI , IZUMITANI MASAKYO , MINATO AKIRA , KANBAYASHI TAKESHI , OOSUMI KATSUMI
IPC分类号： C23F11/18 , C23F15/00 , F01K21/00 , F01K21/06 , G21D1/02

74. 发明专利

JPH0120238B2 失效
公开(公告)号：JPH0120238B2
公开(公告)日：1989-04-14
申请号：JP14315883
申请日：1983-08-05
申请人： HITACHI LTD
发明人： SHOJI SABURO , OONAKA NORYUKI , MINATO AKIRA , ITO HISAO , KIMURA TAKASHI , SAITO TAKASHI , SUMIDA NOBUO
IPC分类号： C23F15/00

75. 发明专利

JPS6296898A POWER PLANT 失效
公开(公告)号：JPS6296898A
公开(公告)日：1987-05-06
申请号：JP25175986
申请日：1986-10-24
申请人： HITACHI LTD
发明人： HONDA TAKU , MINATO AKIRA , IZUMITANI MASAKIYO , KASHIMURA EIJI , OSUMI KATSUMI
IPC分类号： G21D1/00 , C23F14/00 , C23F15/00 , F28F19/00 , G21D3/00

76. 发明专利

JPS6159163B2 失效
公开(公告)号：JPS6159163B2
公开(公告)日：1986-12-15
申请号：JP2559079
申请日：1979-03-07
申请人： HITACHI LTD
发明人： HONDA TAKU , MINATO AKIRA , IZUMITANI MASAKYO , TAMAMURA TATEO
IPC分类号： B01D35/06 , B03C1/034

77. 发明专利

JPS61186897A FEED WATER FACILITY FOR NUCLEAR REACTOR 失效
公开(公告)号：JPS61186897A
公开(公告)日：1986-08-20
申请号：JP2628085
申请日：1985-02-15
申请人： HITACHI LTD
发明人： IZUMITANI MASAKIYO , KAWAKAMI TOSHIO , MINATO AKIRA , OSUMI KATSUMI
IPC分类号： G21D3/08

78. 发明专利

JPS61147900A METHOD AND INSTALLATION FOR CONTINUOUS ELECTROPLATING OF STEEL STRIP 失效
公开(公告)号：JPS61147900A
公开(公告)日：1986-07-05
申请号：JP26936884
申请日：1984-12-20
申请人： HITACHI LTD
发明人： ITO MASAHIKO , MIDORIKAWA HEIHACHIRO , MINATO AKIRA , YAMAGUCHI TERUO
IPC分类号： C25D7/06 , C21D9/56 , C23C2/40 , C23F17/00 , C23G3/02 , C23G5/00 , C25D19/00
摘要： PURPOSE:To execute efficient continuous electroplating of a steel plate at a high speed and high productivity by executing simultaneously a high-temp. electrolytic cleaning treatment and annealing heat treatment of the steel strip in a gaseous phase and pickling and activating the steel strip after descaling and shape correction then subjecting the steel strip to electroplating. CONSTITUTION:The steel strip 1 is passed through an oxygen free furnace 9 via an inlet side installation 2 and a preheating furnace 8 of weak oxidizing property and is heated to the prescribed temp. The heated steel strip is degreased and cleaned by pyrolysis. The steel strip 1 is then passed through a reduction annealing furnace 10 in which a gaseous mixture atmosphere composed of N2 and H2 is maintained. The scale of the steel strip is reduced away and annealed in said furnace. Such strip is cooled to some extent in a cooling chamber 11 and is then passed through a zinc hot dipping cell 12 from which the strip is drawn into the atmosphere and is cooled by a forced air cooler 13. The strip 1 after cooling is treated with an aq. acid soln. in a surface treatment device 14, by which the strip is descaled. The descaled strip is subjected to washing 15 and drying 16, then to shape correction by a skin pass mill 17 and a tension leveler 18. The strip 1 is thereafter subjected to the surface activation by about 10% aq. sulfuric acid soln. in a pickling tank 19 and is continuously electroplated in a galvanizing tank 21 after washing 20.

79. 发明专利

JPS6184597A Method of inhibiting adhesion of radioactive substance on nuclear power plant constitution member 失效
标题翻译：抑制放射性物质对核电厂构成会员的粘附方法
公开(公告)号：JPS6184597A
公开(公告)日：1986-04-30
申请号：JP20630584
申请日：1984-10-03
申请人： Hitachi Ltd
发明人： HONDA TAKU , KASHIMURA EIJI , MINATO AKIRA
IPC分类号： G21F9/00

80. 发明专利

JPS6167772A Plated steel sheet for painting 失效
标题翻译：涂漆钢板
公开(公告)号：JPS6167772A
公开(公告)日：1986-04-07
申请号：JP18957184
申请日：1984-09-12
申请人： Hitachi Ltd
发明人： ITO MASAHIKO , MIDORIKAWA HEIHACHIRO , KAZAMA SHIGETOSHI , MINATO AKIRA
IPC分类号： C23C22/00 , C23C22/78 , C23C28/00 , C25D5/10 , C25D5/26
CPC分类号： C23C22/78
摘要： PURPOSE:To provide a titled steel sheet having excellent bare corrosion resistance and post-painting corrosion resistance by forming successively an inside layer consisting of a galvanizing film, intermediate layer consisting of a zinc alloy plating film and outside layer consisting of iron plating film on the steel sheet and consisting fully the above-mentioned outside layer of a chemical conversion treatment film. CONSTITUTION:The zinc plating film having a sacrificial corrosion preventive effect is formed as the inside layer by electroplating on the cold rolled steel sheet subjected to degreasing and pickling, then the zinc alloy plating film consisting of Zn-Ni, etc. having corrosion resistance is formed as the intermediate layer thereon. The iron plating film having a good chemical convertibility and excellent adhesiveness of the coated film is further formed as the outside layer thereon. The iron plating film for the above-mentioned outside layer is preferably formed to about
摘要翻译：目的：通过连续形成由镀锌膜构成的内层，由锌合金电镀膜构成的中间层和由铁镀层构成的外层，提供具有优异的耐腐蚀性和耐后腐蚀性的标题钢板钢板，并完全组成化学转化处理膜的上述外层。构成：通过在脱脂酸洗的冷轧钢板上进行电镀而形成具有牺牲防腐效果的镀锌膜，由具有耐腐蚀性的Zn-Ni等构成的锌合金镀膜为形成为其上的中间层。进一步形成具有良好的化学可转换性和涂膜粘附性优异的镀铁膜作为外层。用于上述外层的铁电镀膜优选形成为约<=3μm，更优选为约0.5-3μm的膜厚度。然后对上述外层的镀铁膜进行磷酸处理等化学转化处理，在外层的整个部分形成化学转化处理层。因此，可以得到具有高性能和可靠性的涂装用镀钢板。

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