Method of reducing a band mark of an electroplating steel sheet

Chemistry: electrical and wave energy – Apparatus – Electrolytic

Reexamination Certificate

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Details

C204S199000, C204S206000, C205S093000, C205S137000, C205S152000

Reexamination Certificate

active

07045043

ABSTRACT:
The present invention relates to a method of reducing a band mark on an electroplating steel sheet, which can also reduce plating defects and damages to the materials caused by the differences in the physical characteristics of composition materials of a conductor roll used during electroplating Zn or Ni onto a steel sheet. In other words, the present invention comprises ceramic coating portions of circular bands, placed respectively in a thin strip at the both edge regions of the metal band position at the central portion of a conductor roll. In this manner, the present invention has the effects of reducing a band mark on a plating steel sheet, and also suppressing the generation of static electricity by eliminating the level difference between the conductive material (metal band portion) and the non-conductive material (rubber section). The present invention is also cabaple extending the life of a conductor roll by enhancing the wear and corrosion resistances thereof.

REFERENCES:
patent: 4772361 (1988-09-01), Dorsett et al.
patent: 4849083 (1989-07-01), Bertrand et al.
patent: 4949445 (1990-08-01), Van Der Meulen et al.
patent: 5939677 (1999-08-01), Ko
patent: 6024849 (2000-02-01), Ko

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