Title: Technique of manufacturing steel spade in environment protechion type
Application Number: 03100598 Application Date: 2003.01.21
Publication Number: 1518856 Publication Date: 2004.08.11
Approval Pub. Date: Granted Pub. Date: 2005.07.27
International Classifi-cation: A01B1/00
Applicant(s) Name: Fu Changzhi Address: 063500
Inventor(s) Name:
Attorney & Agent: wang yonggong
Abstract:
     An environmental protection type technology for manufacturing the steel spade includes heating the raw steel plate in roller furnace, die pressing by mechanical press, rolling its tubular part by a rolling machine, quenching in hardening medium, tempering in tempering furnace, washing in water washing apparatus, heating the sewage by the afterheat of roller furnace for evaporating and concentrating, and recovering the hardening medium. Its advantages are high quality of product, no environmental pollution.
Time: 16
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