KR950016971A - How to improve the surface quality of continuous castings - Google Patents

How to improve the surface quality of continuous castings Download PDF

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Publication number
KR950016971A
KR950016971A KR1019930031650A KR930031650A KR950016971A KR 950016971 A KR950016971 A KR 950016971A KR 1019930031650 A KR1019930031650 A KR 1019930031650A KR 930031650 A KR930031650 A KR 930031650A KR 950016971 A KR950016971 A KR 950016971A
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KR
South Korea
Prior art keywords
surface quality
mold
improving
cast steel
improve
Prior art date
Application number
KR1019930031650A
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Korean (ko)
Other versions
KR960000326B1 (en
Inventor
박중길
오경식
이인렬
Original Assignee
조말수
포항종합제철주식회사
백덕현
재단법인산업과학기술연구소
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Application filed by 조말수, 포항종합제철주식회사, 백덕현, 재단법인산업과학기술연구소 filed Critical 조말수
Priority to KR1019930031650A priority Critical patent/KR960000326B1/en
Publication of KR950016971A publication Critical patent/KR950016971A/en
Application granted granted Critical
Publication of KR960000326B1 publication Critical patent/KR960000326B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

본 발명은 연속주조주편의 표면품질 개선방법에 관한 것으로써, 전자교반장치의 위치변경없이 교반영역을 변경하여 주편의 표면품질에 영향을 미치는 탕면에서의 용강유속을 증대시킴으로써 주편표층하의 개재물 및 기포를 저감시킬 수 있는 연속주조주편의 표면품질 개선방법을 제공하고자 하는데, 그 목적이 있다.The present invention relates to a method for improving the surface quality of a continuous cast steel, by changing the stirring zone without changing the position of the electronic stirrer to increase the molten steel flow rate at the hot water surface affecting the surface quality of the cast steel, inclusions and bubbles under the surface of the cast steel layer To provide a method for improving the surface quality of a continuous cast steel can be reduced, the purpose is to.

본 발명은 주형에 전자교반장치를 설치하여 연속주조 주편의 표면품질을 개선하는 방법에 있어서, 주형내의 탕면위치가 전자교반장치 중심에서 주형길이의 36.5∼38.5% 만큼 상승된 위치에 오도록 조정하여 연속주조 주편의 표면 품질을 개선하는 방법을 그 요지로 한다.The present invention provides a method of improving the surface quality of a continuous casting cast by installing an electronic stirrer in the mold, wherein the hot water surface in the mold is continuously adjusted to be 36.5 to 38.5% of the mold length from the center of the electronic stirrer. The point is to improve the surface quality of the cast slab.

Description

연속주조주편의 표면품질 개선방법How to improve the surface quality of continuous castings

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도: 주형에서 응고시 응고전면의 용강유속에 따른 용질농화정도를 나타내는 그래프,Fig. 1: Graph showing the solute concentration according to the molten steel flow rate of the solidification front when solidifying in the mold,

제2도: 본 발명에 적용되는 전자교반장치가 내장되어 있는 연속주조 주형의 개략도,2 is a schematic diagram of a continuous casting mold in which an electronic stirring device is applied to the present invention,

제3도: 주형내 주형 상부로부터 탕면까지의 거리에 따른 탕면변동 추이도,FIG. 3: Trend of fluctuations in the surface of the mold according to the distance from the top of the mold to the surface of the mold,

제4도: 탕면높이에 따른 주편 표층하의 기포 분포도.Fig. 4: Bubble distribution under the surface layer of cast steel according to the water surface height.

Claims (1)

주형에 전자교반장치를 설치하여 연속주조 주편의 표면품질을 개선하는 방법에 있어서, 주형내의 탕면위치가 전자교반장치 중심에서 주형길이의 36.5∼38.5% 만큼 상승된 위치에 오도록 조정하는 것을 특징으로 하는 주편의 표면품질 개선방법.A method of improving the surface quality of a continuous cast piece by installing an electronic stirrer in the mold, wherein the hot water surface position in the mold is adjusted to be 36.5 to 38.5% of the mold length from the center of the electronic stirrer. How to improve the surface quality of cast steel. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930031650A 1993-12-30 1993-12-30 Method for improving surface quality of continuous casting KR960000326B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930031650A KR960000326B1 (en) 1993-12-30 1993-12-30 Method for improving surface quality of continuous casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930031650A KR960000326B1 (en) 1993-12-30 1993-12-30 Method for improving surface quality of continuous casting

Publications (2)

Publication Number Publication Date
KR950016971A true KR950016971A (en) 1995-07-20
KR960000326B1 KR960000326B1 (en) 1996-01-05

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ID=19374586

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930031650A KR960000326B1 (en) 1993-12-30 1993-12-30 Method for improving surface quality of continuous casting

Country Status (1)

Country Link
KR (1) KR960000326B1 (en)

Also Published As

Publication number Publication date
KR960000326B1 (en) 1996-01-05

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