KR950016970A - Mold casting for continuous casting with high crystallinity - Google Patents

Mold casting for continuous casting with high crystallinity Download PDF

Info

Publication number
KR950016970A
KR950016970A KR1019930031107A KR930031107A KR950016970A KR 950016970 A KR950016970 A KR 950016970A KR 1019930031107 A KR1019930031107 A KR 1019930031107A KR 930031107 A KR930031107 A KR 930031107A KR 950016970 A KR950016970 A KR 950016970A
Authority
KR
South Korea
Prior art keywords
mold
continuous casting
casting
less
flux
Prior art date
Application number
KR1019930031107A
Other languages
Korean (ko)
Other versions
KR960000325B1 (en
Inventor
장승현
이재우
Original Assignee
조말수
포항종합제철주식회사
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 조말수, 포항종합제철주식회사 filed Critical 조말수
Priority to KR1019930031107A priority Critical patent/KR960000325B1/en
Publication of KR950016970A publication Critical patent/KR950016970A/en
Application granted granted Critical
Publication of KR960000325B1 publication Critical patent/KR960000325B1/en

Links

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
    • B22D11/108—Feeding additives, powders, or the like

Landscapes

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

Abstract

본 발명은 연속주조용 몰드 플럭스에 관한 것으로써, 결정질율에 근거하여 몰드 플럭스를 선정하므로써, 크랙민감강종의 연속주조시 면세로크랙발생을 저감시킬 수 있는 고결정질율을 갖는 연속주조용 몰드 플럭스를 제공하고자 하는데, 그 목적이 있다.The present invention relates to a mold casting flux for continuous casting, by selecting the mold flux based on the crystallinity rate, continuous casting mold flux having a high crystallinity that can reduce the generation of vertical cracks during continuous casting of crack-sensitive steel It is intended to provide a purpose.

본 발명은 연속주조용 몰드 플럭스에 있어서, wt%로, CaO : 28∼42.0%, SiO2: 29.0∼43.0%, MgO : 5.0%이하, Al2O3: 6.0% 이하, F : 6.0∼10.0%, Na2O : 14.0% 이하, B2O3: 1.0% 이하, 전탄소(Total Carbon) : 1.0∼6.0%, 및 기타불가피한 불순물로 조성되고; 염기도가 1.2∼1.3이고; 그리고 결정질율이 60.0% 이상인 고결정질유을 갖는 연속주조용 몰드 플럭스를 그 요지로 한다.In the mold casting for continuous casting, the present invention provides a wt% of CaO: 28 to 42.0%, SiO 2 : 29.0 to 43.0%, MgO: 5.0% or less, Al 2 O 3 : 6.0% or less, F: 6.0 to 10.0. %, Na 2 O: 14.0% or less, B 2 O 3 : 1.0% or less, total carbon: 1.0-6.0%, and other unavoidable impurities; Basicity is 1.2 to 1.3; And the main point is the mold casting for continuous casting which has high crystalline oil whose crystalline rate is 60.0% or more.

Description

고결정질율을 갖는 연속주조용 몰드플럭스Mold casting for continuous casting with high crystallinity

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

제1도: 몰드 플럭스의 결정질율과 염기도, F, Al2O3, B2O3및 MgO 함량과의 관계를 나타내는 그래프,1 is a graph showing the relationship between the crystallinity of the mold flux and basicity, F, Al 2 O 3 , B 2 O 3 and MgO content,

제2도: 서로다른 결정질율을 갖는 몰드 플럭스를 실제연주기에 사용하면서 채취한 슬라그 필름의 단면사진,FIG. 2: Cross-sectional photograph of slag film taken by using mold fluxes with different crystallinity in actual cycle

제3도: 결정질율과 면세로크랙발생기수와의 관계를 나타내는 그래프.Fig. 3: A graph showing the relationship between the crystallinity and the duty free crack generator.

Claims (2)

연속주조용 몰드 플럭스에 있어서, wt%로, CaO : 28∼42%, SiO2: 29.0∼43.0%, MgO : 5.0%이하, Al2O3: 6.0% 이하, F : 6.0∼10.0%, Na2O : 14.0% 이하, B2O3: 1.0% 이하, 전탄소(Total Carbon) : 1.0∼6.0%, 및 기타불가피한 불순물로 조성되고; 염기도가 1.2∼1.3이고; 그리고 결정질율이 60.0% 이상인 것을 특징으로 하는 고결정질을 갖는 연속주조용 몰드 플럭스.In the mold casting for continuous casting, in wt%, CaO: 28 to 42%, SiO 2 : 29.0 to 43.0%, MgO: 5.0% or less, Al 2 O 3 : 6.0% or less, F: 6.0 to 10.0%, Na 2 O: 14.0% or less, B 2 O 3 : 1.0% or less, total carbon: 1.0 to 6.0%, and other unavoidable impurities; Basicity is 1.2 to 1.3; And a crystalline rate of 60.0% or more, the mold flux for continuous casting having a high crystallinity. 제1항에 있어서, 결정질율이 20g의 몰드 플럭스를 600∼700℃로 유지된 전기로에서 탈탄시킨후 백금도가니에 넣어 용융시킨 다음, 밑으로 부터 수냉되는 백금용기에 부어 응고 냉각시켜 제조한 몰드 플럭스 필름의 단면상에서 결정질층 두께의 평균값과 몰드 플럭스 필름 전체두께와의 비율(%)로 산출한 것임을 특징으로 하는 고 결정질율을 갖는 연속주조용 몰드 플럭스.The mold flux according to claim 1, wherein the molten crystalline flux having a crystallinity of 20 g is decarburized in an electric furnace maintained at 600 to 700 DEG C, melted in a platinum crucible, and poured into a platinum vessel which is cooled from below. Mold flux for continuous casting having a high crystallinity, characterized in that it is calculated as the ratio (%) of the average value of the crystalline layer thickness on the cross section of the film and the total thickness of the mold flux film. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930031107A 1993-12-29 1993-12-29 Mold flux of continuous casting KR960000325B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930031107A KR960000325B1 (en) 1993-12-29 1993-12-29 Mold flux of continuous casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930031107A KR960000325B1 (en) 1993-12-29 1993-12-29 Mold flux of continuous casting

Publications (2)

Publication Number Publication Date
KR950016970A true KR950016970A (en) 1995-07-20
KR960000325B1 KR960000325B1 (en) 1996-01-05

Family

ID=19374118

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930031107A KR960000325B1 (en) 1993-12-29 1993-12-29 Mold flux of continuous casting

Country Status (1)

Country Link
KR (1) KR960000325B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020052121A (en) * 2000-12-23 2002-07-02 이구택 A mold flux having a larger interfacial thermal resistance in the continuous casting of steel
KR20040003315A (en) * 2002-07-02 2004-01-13 주식회사 포스코 Mold flux for law carbon steel plate manufacture
KR100490987B1 (en) * 2000-12-05 2005-05-24 주식회사 포스코 Mold flux for manufacturing high carbon steel
KR100810735B1 (en) * 2006-11-08 2008-03-07 주식회사 포스코 Mold flux melting pot
WO2019132457A1 (en) * 2017-12-26 2019-07-04 주식회사 포스코 Method for manufacturing hypo-peritectic steel
CN113305274A (en) * 2020-02-26 2021-08-27 宝山钢铁股份有限公司 Medium carbon steel covering slag for continuous casting of wide and thick plates

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100490987B1 (en) * 2000-12-05 2005-05-24 주식회사 포스코 Mold flux for manufacturing high carbon steel
KR20020052121A (en) * 2000-12-23 2002-07-02 이구택 A mold flux having a larger interfacial thermal resistance in the continuous casting of steel
KR20040003315A (en) * 2002-07-02 2004-01-13 주식회사 포스코 Mold flux for law carbon steel plate manufacture
KR100810735B1 (en) * 2006-11-08 2008-03-07 주식회사 포스코 Mold flux melting pot
WO2019132457A1 (en) * 2017-12-26 2019-07-04 주식회사 포스코 Method for manufacturing hypo-peritectic steel
CN113305274A (en) * 2020-02-26 2021-08-27 宝山钢铁股份有限公司 Medium carbon steel covering slag for continuous casting of wide and thick plates

Also Published As

Publication number Publication date
KR960000325B1 (en) 1996-01-05

Similar Documents

Publication Publication Date Title
DK0657556T3 (en) Austenitic alloys as well as their use
CN104858382A (en) Tundish covering agent and application thereof
US5356454A (en) Mold powder for continuous casting
KR950016970A (en) Mold casting for continuous casting with high crystallinity
KR830004439A (en) Continuous melting and refining methods of secondary or crude copper
JP2017170494A (en) Continuous casting mold powder of steel and continuous casting method
JPH0976049A (en) Flux for continuous casting of molten steel containing aluminum and continuous casting method
KR960010125A (en) Tundish flux for tundish hot reuse of aluminum-kilted steel
SU872563A1 (en) Method of modifying wrought iron
JP2609399B2 (en) Mold powder for continuous casting
JPH0639635B2 (en) Electroslag remelting method for copper and copper alloys
JP4554120B2 (en) Mold powder for continuous casting
US1727088A (en) Method of making rimming steel
US4184869A (en) Method for using flux and slag deoxidizer in ESR process
PE20000254A1 (en) PROCESS AND APPARATUS FOR THE CONTINUOUS REFINING OF COPPER BLISTER
KR970033257A (en) Flux to absorb inclusions in molten steel in tundish
KR970033264A (en) Mold flux for continuous casting of enameled steel containing high sulfur
KR960010128A (en) Heat-generating front powder to reduce surface defects of initial castings in continuous casting
SU505697A1 (en) Slag for casting steel and alloys
US3157494A (en) Method of producing an aluminum alloy
CN1331351A (en) Process for smelting high-grade manganese blocks directly from electrolytic manganese as raw material
KR870004162A (en) Process for producing sulfur, oxygen and nitrogen based alloys based on iron, cobalt and nickel
US1109640A (en) Making an alloy of ferromanganese and silicon.
SU910776A1 (en) Modifier
SU850727A1 (en) Steel

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20001228

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee