Title:
PRODUCTION METHOD FOR NPR NEW MATERIAL SLAB BY MEANS OF CONVERTER AND CONTINUOUS CASTING
Document Type and Number:
WIPO Patent Application WO/2022/104676
Kind Code:
A1
Abstract:
Disclosed in the present invention is a production method for an NPR new material slab by means of converter and continuous casting. The components of the NPR new material slab are: C: 0.35-1%, Mn: 15-24%, Al: 0-5%, NPR crystal: ≤5%, Si: ≤0.3%, S: ≤0.001%, P: ≤0.008%, N: ≤0.006%, Cr: ≤0.01%, Ni: ≤0.2%, Ca: ≤0.01-0.05%, and Cu: ≤0.03%. The production method comprises the following steps: a converter steelmaking process; an LF refining process; an RH refining process; and a slab continuous casting process. The production method for an NPR new material slab by means of converter and continuous casting provided in the present invention effectively solves the problems in the prior art of low yield, high production cost, and low production efficiency of production and preparation of an NPR steel material.
Inventors:
HE MANCHAO (CN)
XIA MIN (CN)
GUO HONGYAN (CN)
XIA MIN (CN)
GUO HONGYAN (CN)
Application Number:
PCT/CN2020/130355
Publication Date:
May 27, 2022
Filing Date:
November 20, 2020
Export Citation:
Assignee:
HE MANCHAO (CN)
XIA MIN (CN)
XIA MIN (CN)
International Classes:
C22C38/04; B22D11/00; C21C5/35; C22C38/38
Foreign References:
| CN111763890A | 2020-10-13 | |||
| CN110894583A | 2020-03-20 | |||
| CN101613841A | 2009-12-30 | |||
| CN102796967A | 2012-11-28 | |||
| CN108754339A | 2018-11-06 | |||
| CN108754305A | 2018-11-06 | |||
| CN101845587A | 2010-09-29 | |||
| KR20110071515A | 2011-06-29 | |||
| CN102851624A | 2013-01-02 | |||
| CN1947927A | 2007-04-18 |
Attorney, Agent or Firm:
BEIJING LONGAN LAW FIRM (CN)
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