Invention Application
- Patent Title: CONTINUOUS PRESS HARDENING PROCESS AND APPARATUS THEREFOR
- Patent Title (中): 连续压制硬化过程及其装置
-
Application No.: PCT/KR2009004162Application Date: 2009-07-27
-
Publication No.: WO2010024530A3Publication Date: 2010-05-27
- Inventor: KWON TAEWOO , YOON CHISANG
- Applicant: HYUNDAI STEEL CO , KWON TAEWOO , YOON CHISANG
- Assignee: HYUNDAI STEEL CO,KWON TAEWOO,YOON CHISANG
- Current Assignee: HYUNDAI STEEL CO,KWON TAEWOO,YOON CHISANG
- Priority: KR20080084681 2008-08-28
- Main IPC: C21D1/18
- IPC: C21D1/18
Abstract:
The present invention relates to a continuous press hardening process, and an apparatus therefor. The present invention comprises: a slab casting step for continuously casting molten steel refined in an electric furnace and blast furnace to make slabs, followed by re-heating and hot-rolling the slabs to prepare a hot-rolled steel sheet; a blanking step after the slab casting step for transferring the hot-rolled steel sheet to a blank through a sealed oven and then blanking the hot-rolled steel sheet; and a press hardening step after the blanking step for transferring the hot-rolled steel sheet to a press mold and then press-molding it. Since the present invention can immediately inject the high-temperature steel sheet generated in hot-rolling in the press hardening step, an additional re-heating step is not required. Thus, the present invention has an effect of reducing costs through simplification of a process.
Information query