Title:
CALCIUM-CONTAINING GRAPHITE STEEL HAVING EXCELLENT MACHINABILITY, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/113428
Kind Code:
A1
Abstract:
The present invention relates to a graphite steel having excellent machinability, and a manufacturing method therefor, and, more specifically, to a calcium-containing graphite steel having a machinability superior to that of normal free-cutting steel, and a manufacturing method therefor.
Inventors:
CHOI SANGWOO (KR)
LIM NAMSUK (KR)
LIM NAMSUK (KR)
Application Number:
PCT/KR2022/020233
Publication Date:
June 22, 2023
Filing Date:
December 13, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/02; B21B1/16; C21D5/14; C21D8/02; C21D9/52; C22C38/00; C22C38/04; C22C38/06; C22C38/14; C22C38/60
Foreign References:
| JP2003034840A | 2003-02-07 | |||
| KR101674826B1 | 2016-11-10 | |||
| KR20200075643A | 2020-06-26 | |||
| KR20190075512A | 2019-07-01 | |||
| JPH07188847A | 1995-07-25 |
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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