Title: Process for producing cold rolled strip steel used for making door-frame
Application Number: 200610053676 Application Date: 2006.09.26
Publication Number: 1947873 Publication Date: 2007.04.18
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B21B1/22;B21B37/16;B21B37/56;B21B37/46;B21B15/00;B23P23/04
Applicant(s) Name: Xinhai Thin Plate Co., Ltd., Jinyun County Address:
Inventor(s) Name: Song Lixin
Attorney & Agent: keli jin
Abstract:
    A technology for manufacturing the cold-rolled band steel used for making door frame includes such steps as treating the surface of hot-rolled band billet, reversible 4-roller cold rolling, edge cutting, brightening annealing, and 2-roller finishing.
Time: 18