Original document(6 pages)  中文版
    A technology for manufacturing the super-soft steel tube used as the substitute of copper tube in evaporator of refrigerator includes such steps providing the cold-rolled excellent thin steel sheet (0.5-0.7 mm in thickness), cutting to become steel bands, die pressing to become tube blank, HF induction welding, cold drawing, and HF and MF combined annealing under the protection of antioxidizing atmosphere.
Application Number
申请号		 200610035435 Application Date
申请日		 2006.05.12
Title 名称 Production of super-soft steel pipes
Publication Number
公开号		 1939657 Publication Date
公开日		 2007.04.04
Approval Pub. Date Granted Pub. Date
International Classification 分类号 B23P23/04;C21D11/00
Applicant(s) Name
申请人		 Wu Lisheng
Address 地址
Inventor(s) Name 发明人 Wu Lisheng
Attorney & Agent 代理人 chenguo rong
More information 更  多  信  息


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