TW374799B - Method of controlling refinery of fast-cutting stainless steel with sulfur containing VOD - Google Patents

Method of controlling refinery of fast-cutting stainless steel with sulfur containing VOD

Info

Publication number
TW374799B
TW374799B TW087114967A TW87114967A TW374799B TW 374799 B TW374799 B TW 374799B TW 087114967 A TW087114967 A TW 087114967A TW 87114967 A TW87114967 A TW 87114967A TW 374799 B TW374799 B TW 374799B
Authority
TW
Taiwan
Prior art keywords
sulfur
refinery
fast
steel
stainless steel
Prior art date
Application number
TW087114967A
Other languages
Chinese (zh)
Inventor
Yu-Sheng Wei
Original Assignee
Walsin Lihwa Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Walsin Lihwa Corp filed Critical Walsin Lihwa Corp
Priority to TW087114967A priority Critical patent/TW374799B/en
Application granted granted Critical
Publication of TW374799B publication Critical patent/TW374799B/en

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Method of controlling refinery of fast-cutting stainless steel with sulfur containing VOD, including at least the following steps: (1) process of refinery and decarburization, mainly the decarburization by blowing oxygen in vacuum to fluid steel, with generation inevitably, in the decarburization process, oxidization of Cr, Mn and other metal elements; (2) reduction the process of dregs creating and sulfur iron adding, being the recycling of the Cr, Mn metal elements for precise composition range, by adding in the fluid steel FeSi, Cao, MgO and other components for reduction and generation of dregs; further, for desired content of sulfur, after reduction of creation of dregs, adding in sulfur iron or sulfur line, for the desired composition range of sulfur; (3) micro adjustment of the process; (4) output of steel; featuring the adding in the fluid steel in the micro adjustment process 0.001 wt% to 0.01 wt% of CaO and 0.001 wt% to 0.005 wt% MgO, for upgrading the assertion of sulfur in the manufacture process of fast-cutting stainless steel and the total sulfur recycling rate to over 85%.
TW087114967A 1998-09-08 1998-09-08 Method of controlling refinery of fast-cutting stainless steel with sulfur containing VOD TW374799B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW087114967A TW374799B (en) 1998-09-08 1998-09-08 Method of controlling refinery of fast-cutting stainless steel with sulfur containing VOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW087114967A TW374799B (en) 1998-09-08 1998-09-08 Method of controlling refinery of fast-cutting stainless steel with sulfur containing VOD

Publications (1)

Publication Number Publication Date
TW374799B true TW374799B (en) 1999-11-21

Family

ID=57941858

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087114967A TW374799B (en) 1998-09-08 1998-09-08 Method of controlling refinery of fast-cutting stainless steel with sulfur containing VOD

Country Status (1)

Country Link
TW (1) TW374799B (en)

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