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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING STEEL SHEET COMPRISING HIGH-TENSILE-STRENGTH STEEL
Document Type and Number:
WIPO Patent Application WO/2019/207636
Kind Code:
A1
Abstract:
Metal scrap is melted in an electric furnace to produce molten steel. This molten steel is transferred to a ladle and refined. This molten steel is cast in a continuous casting machine to produce a slab. The thickness of this slab is 80 – 150 mm. This slab is heated and subjected to rough rolling and finish rolling. The steel temperature on the inlet side of the finish rolling is 890°C, and the steel temperature on the outlet side is at least 850°C. As a result of these rolling processes a belt-like steel sheet having a thickness of 1.0 – 12.5 mm is obtained. This steel sheet is cooled to 600°C or less and wound into a coil shape.

Inventors:
SHIMADA BUNROKU
Application Number:
JP2018/016550
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
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Assignee:
SBB66 CO LTD (Postcode6570061, JP)
International Classes:
B21B1/22; B22D11/00; C22C38/00
Domestic Patent References:
WO2017154727A12017-09-14
Foreign References:
JP2018031055A2018-03-01
JP2007070647A2007-03-22
JP2005002441A2005-01-06
JPH04162943A1992-06-08
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (Postcode6500031, JP)
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