KR970015531A - Magnesia-chromiatrile firebrick for high oxygen blowing with excellent corrosion resistance and abrasion resistance - Google Patents

Magnesia-chromiatrile firebrick for high oxygen blowing with excellent corrosion resistance and abrasion resistance Download PDF

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Publication number
KR970015531A
KR970015531A KR1019950028916A KR19950028916A KR970015531A KR 970015531 A KR970015531 A KR 970015531A KR 1019950028916 A KR1019950028916 A KR 1019950028916A KR 19950028916 A KR19950028916 A KR 19950028916A KR 970015531 A KR970015531 A KR 970015531A
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KR
South Korea
Prior art keywords
magnesia
clinker
high oxygen
mixed
weight
Prior art date
Application number
KR1019950028916A
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Korean (ko)
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KR100241011B1 (en
Inventor
홍기곤
Original Assignee
김종진
포항종합제철 주식회사
서상기
포철로재 주식회사
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Publication date
Application filed by 김종진, 포항종합제철 주식회사, 서상기, 포철로재 주식회사 filed Critical 김종진
Priority to KR1019950028916A priority Critical patent/KR100241011B1/en
Publication of KR970015531A publication Critical patent/KR970015531A/en
Application granted granted Critical
Publication of KR100241011B1 publication Critical patent/KR100241011B1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Abstract

본 발명은 AOD로, 순환 탈가스로(RH) 및 흡인 탈가스로(DH)등과 같은 용용금속 정련처리용 설비의 내장내화물로 사용되는 고산소 취입용 마그네시아-크로미아질 내화벽돌에 관한 것으로, 적정비율로 혼합된 전융마그네시아-크로미아질 클링커 및 천연크롬철광의 혼합재료와 마그네시아 클링커를 적절히 조성시키므로서, 산소취입시 생성되는 산화철 성분에 의한 화학적 용손에 대한 저항성 및 고열에 대한 내마모성(고온강도, 열간반복강도)이 우수한 고산소 취입용 마그네시아-크로미아질 내화벽돌을 제공하고자 하는데, 그 목적이 있다.The present invention relates to a high oxygen blowing magnesia-chromiazyl refractory brick used as internal refractory material for molten metal refining equipment such as AOD furnace, circulating degassing furnace (RH) and suction degassing furnace (DH). Proper composition of magnesia-chromiazyl clinker and natural chromite mixed materials and magnesia clinker mixed at an appropriate ratio, and resistance to chemical damage caused by iron oxide components generated during oxygen injection and abrasion resistance against high heat (high temperature strength In order to provide a high oxygen blown magnesia-chromiatritic refractory brick having excellent hot repetition strength)

상기한 목적달성을 위한 본 발명은 1 : l∼3 : 1의 중량비 범위로 혼합된 전용 마그네시아 클링커 및 천연크롬철광의 혼합원료 45∼80중량%, 및 소결마그네시아 클링커 및 해수마그네시아 클링커 중 선택된 1종 또는 2종 : 20∼55중량%로 조성되는 내식성 및 내마모성이 우수한 고산소 취입용 마그네시아-크로미아질 내화벽돌에 관한 것을 그 요지로 한다.The present invention for achieving the above object is 45 to 80% by weight of a mixed raw material of magnesia clinker and natural chromite iron mixed in a weight ratio range of 1: 1 to 3: 1, and one selected from sintered magnesia clinker and seawater magnesia clinker Or 2 kinds: It is made into the summary about the high oxygen blowing magnesia-chromiazyl refractory brick which is excellent in corrosion resistance and abrasion resistance which are comprised from 20 to 55 weight%.

Description

내식성 및 내마모성이 우수한 고산소 취입옹 마그네시아-크로미아질 내화벽돌High Oxygen Blowing Magnesia-Chromemia Firebrick with Excellent Corrosion Resistance and Wear Resistance

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

Claims (1)

1 : 1∼3 : 1의 중량비 범위로 혼합된 전용 마그네시아 클링커 및 천연크롬철광의 혼합원료 : 45∼80중량%, 및 소결마그네시아 클링커 및 해수마그네시아 클링커 중 선택된 1종 또는 2종 : 20∼55중량%로 조성됨을 특징으로 하는 내식성 및 내마모성이 우수한 고산소 취입용 마그네시아-크로미아질 내화벽돌.1: 1 to 3: 1 Magnesia clinker and natural chromite iron mixed raw materials mixed in a weight ratio range: 45 to 80% by weight, and one or two selected from sintered magnesia clinker and seawater magnesia clinker: 20 to 55 weight Magnesia-chromia-zil refractory brick for high oxygen blowing with excellent corrosion resistance and abrasion resistance, characterized in that it is formed in%. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950028916A 1995-09-05 1995-09-05 Magnesia-chromia refractory brick KR100241011B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950028916A KR100241011B1 (en) 1995-09-05 1995-09-05 Magnesia-chromia refractory brick

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950028916A KR100241011B1 (en) 1995-09-05 1995-09-05 Magnesia-chromia refractory brick

Publications (2)

Publication Number Publication Date
KR970015531A true KR970015531A (en) 1997-04-28
KR100241011B1 KR100241011B1 (en) 2000-02-01

Family

ID=19426073

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950028916A KR100241011B1 (en) 1995-09-05 1995-09-05 Magnesia-chromia refractory brick

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KR (1) KR100241011B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040049586A (en) * 2002-12-06 2004-06-12 주식회사 포스렉 A burned magnesia-chrome firebrick using broken Mg-Cr brick

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100356366B1 (en) * 1998-12-29 2002-11-18 재단법인 포항산업과학연구원 Peripheral fillers of firebrick for tundish nozzle protection
KR101203631B1 (en) * 2004-10-07 2012-11-23 주식회사 포스코 Magnesia-Chrome Refractories and the manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040049586A (en) * 2002-12-06 2004-06-12 주식회사 포스렉 A burned magnesia-chrome firebrick using broken Mg-Cr brick

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Publication number Publication date
KR100241011B1 (en) 2000-02-01

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