Production of class t-3 tin plate of superior aging property

Abstract

Abstract PURPOSE:To produce a steel sheet for tin plates of homogenous quality and superior aging property by subjecting an Al killed continuously cast steel material of a low content of N to hot rolling, cold rolling and continuous annealng then to box annealing for a short time at low temps. CONSTITUTION:A low carbon Al killed continuously cast steel ingot of the comps. contg. 0.05-0.10% C and <0.004% N wherein the ratio of N/Al is smaller than 0.1 is hot rolled to asteel plate. This steel plate is coiled at <=640 deg.C. The coil is pickled and is removed of the scale produced by the hot rolling, after which it is cold rolled to a steel strip which is then annealed at temps. higher than its recrystallization temp. in a continuous annealing furnace. Immediately after this, it is cooled down to a room temp. Then it is subjected to an overaging treatment for >=15min in a 350-500 deg.C temp. range, and is cooled down to a room temp. After this strip is subjected about 1% skin pass rolling, it is carried out with tin plating, whereby the tin plate of uniform quality in the longitudinal and transverse direction and of superior corrosion resistance and aging property is obtained.

Inventors

• 👤 Hideo Kukuminato
• 👤 久々湊　英雄
• 👤 Sadao Izumiyama
• 👤 泉山　禎男
• 👤 Akiya Yagishima
• 👤 柳島　章也

Bibliographic Details