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71. 发明专利

JPS60194100A Method for supplying electric current for electrolytic stripping 失效
标题翻译：供电电流的电解剥离方法
公开(公告)号：JPS60194100A
公开(公告)日：1985-10-02
申请号：JP204084
申请日：1984-01-11
申请人： Nippon Steel Corp
发明人： TSUTSUMI MASAYA , MURATA TOSHIMICHI , NAMIENO TSUTOMU , SHIMA TETSUO , HASHIMOTO YOSHIAKI , YOSHIDA SHINICHI
IPC分类号： C25D5/48 , C25D7/06 , C25F5/00
摘要： PURPOSE: To prevent the dissolution and piercing of a layer formed by plating due to concentrated electric current or an arc spot when a plating component deposited on the nonplated side of a one-side electroplated steel sheet is remived, by supplying electric current from the nonplated side through a conductor roll.
CONSTITUTION: A one-side zinc alloy electroplated steel sheet 1 is brought into contact with a conductur roll 2 by means of a backup roll 3, and it is pssed through an electrolytic soln. 4 in a vertical electrolytic cell. At this time, the nonplated side 6 and the plated side 7 of the steel sheet 1 are set as shown in the figure so that the side 6 contacts with the roll 2, and electric current is supplied using the steel sheet 1 as an anode through the roll 2 and an electrode 5 as a cathode. A plating component deposited on the nonplated side 6 is dissolved in the soln. 4 to finish electrolytic stripping. A hole is not pierced in the plated side 7 by dissolution, so the side 7 is not damaged.
COPYRIGHT: (C)1985,JPO&Japio
摘要翻译：目的：为了避免沉积在单面电镀钢板的非镀层侧的电镀部件由于集中电流或电弧点而形成的电镀层的溶解和刺穿，通过从未镀层侧通过导体辊。构成：通过支撑辊3将单面锌合金电镀钢板1与导向辊2接触，并通过电解质溶液浸渍。 4在垂直电解槽中。此时，钢板1的非电镀面6和电镀侧7如图所示设定，使得侧面6与辊2接触，使用钢板1作为阳极供给电流辊2和电极5作为阴极。沉积在非电镀侧6上的电镀组分溶解在溶胶中。 4完成电解剥离。通过溶解在电镀侧7不刺穿孔，因此侧面7不被损坏。

72. 发明专利

JPS58133395A AFTER-TREATMENT OF UNCOATED SURFACE OF SINGLE-SURFACE ZINC-ELECTROPLATED STEEL SHEET 失效
公开(公告)号：JPS58133395A
公开(公告)日：1983-08-09
申请号：JP1331082
申请日：1982-02-01
申请人： NIPPON STEEL CORP
发明人： SHINDOU YOSHIO , TSUTSUMI MASAYA , HOTSUTA WATARU , HASHIMOTO YOSHIAKI
IPC分类号： C25D5/26 , C25D5/48 , C25D5/52 , C25F1/06
摘要： PURPOSE:To remove discolored substance from an iron surface in conventional arrangements without harmful influences for the improvement of its external appearance and phosphatability, by electrolyzing the uncoated surface of a single-surface zinc-electroplated steel sheet with an aqueous solution of specified pH contg. a specified acid and base. CONSTITUTION:After one surface of a steel sheet is electroplated with zinc, the uncoated surface is electrolyzed in an aqueous solution of pH above 3 but below 9 comprising one or more of sulfuric, hydrochloric, perchloric, carbonic, boric and nitric acids and one or more of NaOH, KOH and NH4OH. On this occasion, current density is controlled above 5A/dm . In this method, polarity is made anodic to electrolytically remove blackened matter which would be difficult to remove with cathodic polarity. Accordingly, phosphatability can be improved in addition to the removal of the blackened matter, although the reason is not clear.

73. 发明专利

JPS56150136A COOLING METHOD FOR HOT ROLLED WIRE ROD 失效
公开(公告)号：JPS56150136A
公开(公告)日：1981-11-20
申请号：JP5362580
申请日：1980-04-24
申请人： NIPPON STEEL CORP
发明人： YOSHIMURA TAKAFUMI , HIDA YOUJI , KUMAGAI TADAYOSHI , TSUCHIYA KATSURA , TSUTSUMI MASAYA
IPC分类号： B21B43/00 , C21D1/70 , C21D1/84 , C21D9/52 , C21D9/573
摘要： PURPOSE:To avoid overcooling the surface of a wire rod and obtain a wire rod having mechanical properties similar to those of a lead-patened material by a method wherein a hot rolled wire rod of medium- or high-carbon steel is cooled rapidly under specified conditions and then cooled with an inorganic heat-insulating material adhered thereto. CONSTITUTION:Steel containing 0.25-1.0% of C, not more than 1.5% of Mn and the like is hot rolled into the wire rod, which is then cooled rapidly from an austenite temperature range to a temperature ranging from a temperature slightly higher than Ms point to 650 deg.C, at cooling rate of not less than 20 deg.C/sec. Then, the heat- insulating material consisting mainly of an inorganic white powder such as Al2O3 or one containing pulverulent Al and an igniter as main constituents is adhered to the surface of the wire rod, and the latter is cooled while preventing the surface from being overcooled. Accordingly, martensite or the like is prevented from being generated at the surface layer, while the temperature of the wire rod is equalized in the longitudinal direction, so that a wire rod excellent in mechanical properties can be obtained.

74. 发明专利

JPS534738A ELECTRIC STEEL SUPERIOR IN PUNCHHWORKABILITY AND WELDABILITY 失效
公开(公告)号：JPS534738A
公开(公告)日：1978-01-17
申请号：JP7791276
申请日：1976-07-02
申请人： NIPPON STEEL CORP
发明人： AYUSAWA SABUROU , NAGASHIMA TAKEO , TSUTSUMI MASAYA
IPC分类号： H02K1/04 , B05D3/06 , B05D7/14 , C09D5/00 , H01B17/62 , H01F27/24 , H02K15/00

75. 发明专利

JPS52147549A MAKING OF SUPERIOR LUBRICATE STEEL PLATE OR STEEL STRIP 失效
公开(公告)号：JPS52147549A
公开(公告)日：1977-12-08
申请号：JP6412576
申请日：1976-06-03
申请人： NIPPON STEEL CORP
发明人： AYUSAWA SABUROU , NAGASHIMA TAKEO , TSUTSUMI MASAYA
IPC分类号： C10M107/30 , B21B1/22 , B21B1/36 , B21B45/02 , C10M105/24 , C10M105/32 , C10M105/40 , C10M107/28 , C10M107/32 , C10M111/04 , C10N40/24 , C10N50/02 , C10N50/08 , C10N70/00

76. 发明专利

JPS5238433A ANTICORROSIVE STEEL 失效
公开(公告)号：JPS5238433A
公开(公告)日：1977-03-25
申请号：JP11284475
申请日：1975-09-18
申请人： NIPPON PAINT CO LTD , NIPPON STEEL CORP
发明人： AYUSAWA SABUROU , NAGASHIMA TAKEO , TSUTSUMI MASAYA , SUMIYOSHI IWAO , ARAI KUNIHIKO , YAMAMOTO YOSHIKAZU
IPC分类号： B05D7/14 , B29C63/00 , B32B37/00 , C23F15/00

77. 发明专利

JPS5170212A Hooroomaeshorizumikohan oyobi kotaino seizohoho 失效
公开(公告)号：JPS5170212A
公开(公告)日：1976-06-17
申请号：JP14408374
申请日：1974-12-17
申请人： Nippon Steel Corp
发明人： AYUSAWA SABURO , NAGASHIMA TAKEO , TSUTSUMI MASAYA
IPC分类号： C23D3/00 , C23C22/08
CPC分类号： C23C22/08

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