Nippon Steel Corporation

Hiroji Baba

Norichika Nagira

Hiroshi Ikegami

Kanji Yahano

A surface treatment apparatus for producing a steel strip having an enhanced phosphatizing property, has a plurality of guide rolls for guiding the strip along a predetermined path, a pickling vessel having nozzles for spraying a pickling liquid onto the surface of the strip, a first rinsing vessel having nozzles for spraying water onto the strip surface, an electrolytic treating vessel having an anode and a temperature control for the electrolytic treating liquid, a second rinsing vessel having nozzles for spraying water onto the strip surface, and a voltage supply for applying a voltage between an anode and a cathode consisting of a guide roll located beside and close to the electrolytic treating liquid contained in the electrolytic treating vessel.

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Kitakyushu, Japan

Hiroji Baba