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1. 发明授权

US5312531A Process for manufacturing galvanized steel sheet by nickel pre-coating method 失效
标题翻译：镍预涂法生产镀锌钢板的工艺
公开(公告)号：US5312531A
公开(公告)日：1994-05-17
申请号：US991409
申请日：1992-12-16
申请人： Kazumi Nishimura , Hisao Odashima , Tetsuya Ohara , Ryohei Mizoguchi , Shigeto Fujii
发明人： Kazumi Nishimura , Hisao Odashima , Tetsuya Ohara , Ryohei Mizoguchi , Shigeto Fujii
IPC分类号： C21D9/46 , C23C2/02 , C23C2/06 , C23C2/40 , C25D17/00 , B05C3/12
CPC分类号： C23C2/02
摘要： Process for manufacturing a galvanized steel sheet, comprising steps of coating a steel sheet with nickel in an amount of from 0.2 to 2 g/m.sup.2, heating the steel sheet thus coated to a temperature within the range of from 420.degree. C. to 500.degree. C. in a non-oxidative atmosphere, and dipping the nickel coated steel sheet into a molten zinc bath containing aluminum at a content of from 0.1 to 1% without contact with air, wherein the steel sheet is dipped into the molten zinc bath within 15 seconds after the temperature of the steel sheet exceeds 350.degree. C. in the heating step. An apparatus for performing the process comprises a nickel electroplating apparatus, a non-oxidative atmosphere-heating apparatus, and a galvanizing apparatus equipped with a molten zinc adhering amount-controlling device at the outlet side thereof, arranged sequentially in the steel sheet delivery direction, said non-oxidative atmosphere-heating apparatus comprising a ring transformer having a space for steel sheet delivery, a conductor roll provided at the inlet side of the ring transformer and being connected by use of an electroconductive member to a molten zinc bath of the galvanizing installation, thus a secondary coil of the transformer being formed from the conductor roll, the electroconductive member and the delivered steel sheet between the entering point in the molten zinc bath and the conductor roll contact point, and an atmospheric gas-feeding device for feeding a non-oxidative gas to the atmospheric chamber.
摘要翻译：镀锌钢板的制造方法，其特征在于，包括以0.2〜2g / m 2的量涂覆镍的钢板，将所述被覆钢板加热到420〜500℃的温度在非氧化性气氛中，将镍镀钢钢板浸入含铝0.1〜1％的熔融锌浴中，不与空气接触，其中将钢板浸入15熔融锌浴中在加热步骤中钢板的温度超过350℃的秒后。一种用于执行该方法的设备包括镍电镀设备，非氧化性气氛加热设备和在其出口侧配备有沿着钢板输送方向依次设置的熔融锌附着量控制设备的镀锌设备，所述非氧化性气氛加热装置包括具有用于钢板输送的空间的环形变压器，设置在环形变压器的入口侧的导体辊，并且通过使用导电构件连接到镀锌设备的熔融锌浴因此，变压器的次级线圈由导体辊，导电构件和输送钢板在熔融锌浴的入口点和导体辊接触点之间形成，以及用于馈送非导电辊的气氛供气装置，氧化气体到大气室。

2. 发明授权

US5203985A Process for manufacturing galvanized steel sheet by nickel pre-coating method 失效
标题翻译：镍镀层预处理方法制作镀锌钢板的工艺
公开(公告)号：US5203985A
公开(公告)日：1993-04-20
申请号：US700457
申请日：1991-05-15
申请人： Kazumi Nishimura , Hisao Odashima , Tetsuya Ohara , Ryohei Mizoguchi , Shigeto Fujii
发明人： Kazumi Nishimura , Hisao Odashima , Tetsuya Ohara , Ryohei Mizoguchi , Shigeto Fujii
IPC分类号： C21D9/46 , C23C2/02 , C23C2/06 , C23C2/40
CPC分类号： C23C2/02
摘要： Process for manufacturing a galvanized steel sheet, comprising steps of coating a steel sheet with nickel in an amount of from 0.2 to 2 g/m.sup.2, heating the steel sheet thus coated to a temperature within the range of from 420.degree. C. to 500.degree. C. in a non-oxidative atmosphere, and dipping the nickel coated steel sheet into a molten zinc bath containing aluminum at a content of from 0.1 to 1% without contract with air, wherein the steel sheet is dipped into the molten zinc bath within 15 seconds after the temperature of the steel sheet extends 350.degree. C. in the heating step. And apparatus for performing the process comprises a nickel electroplating apparatus, a non-oxidative atmosphere-heating apparatus, and a galvanizing apparatus equipped with a molten zinc adhering amount-controlling device at the outlet side, arranged sequentially in the steel sheet delivery direction, thereof said non-oxidative atmosphere-heating apparatus comprising a ring transformer having a space for steel sheet delivery, a conductor roll provided at the inlet side of the ring transformer and being connected by use of an electroconductive member to a molten zinc bath of the galvanizing installation, thus a secondary coil of the transformer being formed from the conductor roll, the electroconductive member and the delivered steel sheet between the entering point in the molten zinc bath and the conductor roll contact point, and an atmospheric gas-feeding device for feeding a non-oxidative as to the atmospheric chamber.

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