PURPOSE: To produce a stainless steel strip which has a surface having superior gloss close to specular gloss and free from flaws by applying degreasing and pickling treatments to a cold rolled stainless steel strip prior to continuous annealing.
CONSTITUTION: At the time of applying continuous annealing to a cold rolled stainless steel strip 5, the strip 5 is first passed through a degreasing apparatus 7 consisting of an electrolytic cleaning tank and a water washing tank to undergo removal of rolling oil used at the time of cold rolling. Subsequently, the strip 5 is introduced into a pickling device 8 and passed, e.g. through an aqueous solution of hydrochloric acid of 5% concentration, by which rolling wear particles formed on the surface of the stainless steel strip at the time of rolling are removed. Finally the steel strip is passed through a continuous annealing furnace 1, by which the stainless steel strip free from nonuniform gloss at the surface and having high gloss close to specular gloss can be obtained.
ISHIBASHI GENICHI
SATO KUNIAKI
YAGINUMA HIROSHI
MURAMOTO HARUMASA
| JPS5818436A | 1983-02-03 | |||
| JPS5946314A | 1984-03-15 |