KR970015532A - Magnesia with Excellent Hot-Strength-Chromicil Fire Resistant Brick - Google Patents

Magnesia with Excellent Hot-Strength-Chromicil Fire Resistant Brick Download PDF

Info

Publication number
KR970015532A
KR970015532A KR1019950028917A KR19950028917A KR970015532A KR 970015532 A KR970015532 A KR 970015532A KR 1019950028917 A KR1019950028917 A KR 1019950028917A KR 19950028917 A KR19950028917 A KR 19950028917A KR 970015532 A KR970015532 A KR 970015532A
Authority
KR
South Korea
Prior art keywords
magnesia
strength
refractory brick
refractory
refractory material
Prior art date
Application number
KR1019950028917A
Other languages
Korean (ko)
Inventor
홍기곤
박노형
Original Assignee
김종진
포항종합제철 주식회사
서상기
포철로재 주식회사
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 김종진, 포항종합제철 주식회사, 서상기, 포철로재 주식회사 filed Critical 김종진
Priority to KR1019950028917A priority Critical patent/KR970015532A/en
Publication of KR970015532A publication Critical patent/KR970015532A/en

Links

Landscapes

  • Compositions Of Oxide Ceramics (AREA)

Abstract

본 발명은 용강의 탈 가스 처리를 행하는 정련용기인 진공탈가스 설비등에 내장된 내화물인 마그네시아-크로미아질 내화벽돌에 관한 것으로, 마그네시아와 크로미아질로 이루어진 내화재료에 메타카올린과 금속알루미늄 분말로 이루어진 혼합분말을 첨가하여 소성시에 금속알루미늄 분말의 산화-팽창에 의한 치밀화 및 메타카올린으로부터 뮬라이트(3Al2O32SiO2)를 생성시키므로서, 내식성은 저하시키지 않으면서 고온강도 및 열간반복강도가 우수한 마그네시아-크로미아질 내화벽돌을 제공하고자 하는데, 그 목적이 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnesia-chromiatrile refractory brick, a refractory material incorporated in a vacuum degassing plant, which is a refining vessel for degassing molten steel. By adding a mixed powder, densification by oxidation-expansion of metal aluminum powder during firing and mullite (3Al 2 O 3 2SiO 2 ) are produced from metakaolin, and thus excellent corrosion resistance and high temperature strength and hot repeat strength are excellent. It is an object to provide a magnesia-chromiazyl refractory brick.

상기한 목적달성을 위한 본 발명은 마그네시아-크로미아질 내화벽돌에 있어서, 마그네시아와 크로미아질로 이루어진 내화재료에, 1 : 2의 몰비율로 혼합되고 그 입경이 1.0㎜ 이하인 메타카올린과 금속알루미늄 분말의 혼합분말을, 상기 내화재료 전체중량에 대하여 1∼15중량% 첨가하여 조성되고, 그 조직이 뮬라이트(3Al2O3, 2SiO2)인 열간강도가 우수한 마그네시아-크로미아질 내화벽돌에 관한 것을 그 요지로 한다.The present invention for achieving the above object is in the magnesia-chromia refractory brick, metakaolin and metal aluminum powder having a molar ratio of 1: 2 mixed with a refractory material consisting of magnesia and chromiazil, the particle diameter of which is 1.0 mm or less. To a magnesia-chromia refractory brick having a hot strength of 1 to 15% by weight based on the total weight of the refractory material and having a structure of mullite (3Al 2 O 3 , 2SiO 2 ). That's the point.

Description

열간강도가 우수한 마그네시아-크로미아질 내화벽돌Magnesia-Chromemia refractory brick with excellent hot strength

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

Claims (1)

마그네시아-크로미아질 내화벽돌에 있어서, 마그네시아와 크로미아질로 이루어진 내화재료에, 1 : 2의 몰비율로 혼합되고 그 입경이 1.0㎜ 이하인 메타카올린과 금속알루미늄 분말의 혼합분말을, 상기 내화재료 전체중량에 대하여 1∼15중량% 첨가하여 조성되고, 그 조직이 뮬라이트(3Al2O32SiO2)인 것을 특징으로 하는 열간강도가 우수한 마그네시아-크로미아질 내화벽돌.In the magnesia-chromia refractory brick, a mixed powder of metakaolin and metal aluminum powder having a molar ratio of 1: 2 and a particle diameter of 1.0 mm or less is mixed with a refractory material composed of magnesia and chromiazil. A magnesia-chromiac refractory brick having excellent hot strength, which is added by 1 to 15% by weight and is composed of mullite (3Al 2 O 3 2SiO 2 ). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950028917A 1995-09-05 1995-09-05 Magnesia with Excellent Hot-Strength-Chromicil Fire Resistant Brick KR970015532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950028917A KR970015532A (en) 1995-09-05 1995-09-05 Magnesia with Excellent Hot-Strength-Chromicil Fire Resistant Brick

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950028917A KR970015532A (en) 1995-09-05 1995-09-05 Magnesia with Excellent Hot-Strength-Chromicil Fire Resistant Brick

Publications (1)

Publication Number Publication Date
KR970015532A true KR970015532A (en) 1997-04-28

Family

ID=66596282

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950028917A KR970015532A (en) 1995-09-05 1995-09-05 Magnesia with Excellent Hot-Strength-Chromicil Fire Resistant Brick

Country Status (1)

Country Link
KR (1) KR970015532A (en)

Similar Documents

Publication Publication Date Title
ATE224930T1 (en) FIRE RESISTANT POLYMETHYLMETHACRYLATE COMPOSITION
KR970015532A (en) Magnesia with Excellent Hot-Strength-Chromicil Fire Resistant Brick
CA2078737A1 (en) Heat-Resistant Vermicular or Spheroidal Graphite Cast Iron
KR900002868A (en) Manufacturing method of immersion nozzle for metallurgy vessel
US5268031A (en) Pumpable ceramic fiber composition
CN110526721A (en) A kind of effective refractory material of steel-making RH refining furnace dipping
EP0128665A2 (en) Heat resistant means
KR970015531A (en) Magnesia-chromiatrile firebrick for high oxygen blowing with excellent corrosion resistance and abrasion resistance
EP0020022A1 (en) Plastic refractories with fused alumina-chrome grog
CA2049495A1 (en) Non-aqueous patching mix and method
KR960022370A (en) Plastic fireproof brick for refining processing equipment
KR960022372A (en) Magnesia-Chromiazil fired brick
KR970015530A (en) Magnesia Refractory Mortar Composition
KR830010014A (en) Fire Resistant Hydroponic Cement Composition
KR910008205B1 (en) Agent for controling the slag foaming
KR830008547A (en) Fire Resistant Carcia Nitride
Wiederhorn Erosion of ceramics
BR9902970A (en) Steel production method.
Yoshinaga et al. CORROSION OF MAGNESIA-CHROME REFRACTORY BY MOLTEN CaO-Al 2 O 3-SiO 2-FetO SLAGS
KR970042408A (en) Basic Refractory Mortar Composition
JPS649877A (en) Pouring material for hot metal-carrying vessel
KR970015527A (en) Amorphous refractory composition of basic dam block for tundish
KR950017850A (en) Castable Refractory Composition Containing Crude Aggregate
SU719990A1 (en) Refractory coating
KR960023098A (en) Mud material composition for closing blast furnace outlet

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application