Nippon Steel Corporation

Nittetsu Plant Designing Corporation

Michihiro Shimamura

Shuji Masuda

Kazuhiro Marumo

Kiyohide Tsuchiya

Masaharu Sanada

Katsuaki Nakagawa

Tadashi Ogata

In an electrolytic apparatus that passes a strip between paired members of a liquid throttle unit provided on at least one of an inlet side and an outlet side of a treatment cell through which the strip is continuously passed, an electrolytic apparatus with strip non-contacting liquid throttle unit is provided which is characterized in that the spacing between the paired members of the liquid throttle unit is set very slightly larger than the thickness of the passed strip to maintain the surfaces of the strip and the liquid throttle unit members, e.g. a seal roll, nozzle device or wedge-shaped block, in a non-contacting state.

Electrolysis apparatus having liquid squeezer out of contact with strip

The present invention relates to a vertical type stream plating apparatus for plating the surface of a metal strip with tin, chromium, copper or the like. Fundamentally, the apparatus comprises an electrolyte feeding nozzle for feeding an electrolyte into a space between electrodes, a side seal provided on both sides in the widthwise direction of the electrode and a pressure equalizing chamber provided on the backside of the electrode. The apparatus further comprises a electrode having a plurality of through holes communicating with the pressure equalizing chamber provided in an electrode box, waste electrolyte equipment provided with a waste electrolyte box for gathering and discharging the electrolyte and a seal equipment provided at the lowermost portion of the apparatus for preventing the outflow of the electrolyte. The above constitution enables the flow rate distribution of the electrolyte in the widthwise direction of the strip to be made more homogeneous than the prior art and enables the flow rate of the electrolyte to be increased without causing problems of vibration (fluttering phenomenon) of the strip and adsorption of the strip to the electrode, which contributes to an increase in the speed of plating and an improvement in the quality of plating.

Vertical type stream plating apparatus

Growing community of inventors

Kitakyushu, Japan

Michihiro Shimamura