This paper describes cold strip steel to be faced with situation and analysizes its production equipment status and development direction.

The processing schemes of roughing mills reformation of hot narrow strip plant were put forwardThe selection principles of reformation were introducedMeanwhile,some problems about reformation design and the development direction of hot narrow strip were put forward

The rolling process of the hot rolled narrow strip is introduced, and some notice matters of the main equipment selection are pointed out; the production situation of the hot rolled narrow strip in our country is simply analyzed, mean while, the author has put forward some suggestions with the new workshop and the technology reformation.

This article put forward resolving measures for common quality problems aiming at hot rolled narrow strip used for welded pipe production course,such as rolling workpiece raise,width dimension exceeding the standard requirement,and strip wave-shape and sickle.

Analysis of the width off-tolerance of hot rolled narrow strip and its resolution methods;

Different cooling rates after rolling on Q215 hot-rolling narrow strip were simulated by Gleeble-1500 type hot simulation experiment machine in this paper.

According to related data about the pass size and rolling rule in blooming of 355 mm strip with 165 mm×280 mm continuous casting slab, the stimulation study is done for blooming forced-spreading pass for hot-rolled narrow strip.

Recent years, the production of hot-rolled narrow strip steel increased rapidly.