Title:
REINFORCING BAR AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/222122
Kind Code:
A1
Abstract:
According to an embodiment, a manufacturing method for a reinforcing bar comprises the steps of: reheating a billet having a predetermined alloy composition at a temperature of 1100°C to 1200°C; hot rolling the reheated billet at a finish rolling temperature of the Ac1 point to 1000°C; cooling the hot rolled steel to a surface temperature of Ms-100 (°C) to Ms (°C) through a Tempcore process; and subjecting the cooled steel to recuperative heating at a temperature of 500°C to 600°C.
Inventors:
CHUNG JUN HO (KR)
KIM WON HOE (KR)
KIM WON HOE (KR)
Application Number:
PCT/KR2016/013590
Publication Date:
December 28, 2017
Filing Date:
November 24, 2016
Export Citation:
Assignee:
HYUNDAI STEEL CO (KR)
International Classes:
C22C38/58; C21D8/06; C21D9/52; C22C38/00; C22C38/02; C22C38/04; C22C38/46; C22C38/48; C22C38/50
Domestic Patent References:
| WO2014034070A1 | 2014-03-06 |
Foreign References:
| KR20150013246A | 2015-02-04 | |||
| KR20150001535A | 2015-01-06 | |||
| KR20130064760A | 2013-06-18 | |||
| KR20160025183A | 2016-03-08 |
Attorney, Agent or Firm:
AJU INT'L LAW & PATENT GROUP (KR)
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