KR890009766A - Method for manufacturing MgO for oriented electrical steel sheet annealing separator - Google Patents

Method for manufacturing MgO for oriented electrical steel sheet annealing separator Download PDF

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Publication number
KR890009766A
KR890009766A KR1019870015092A KR870015092A KR890009766A KR 890009766 A KR890009766 A KR 890009766A KR 1019870015092 A KR1019870015092 A KR 1019870015092A KR 870015092 A KR870015092 A KR 870015092A KR 890009766 A KR890009766 A KR 890009766A
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KR
South Korea
Prior art keywords
steel sheet
electrical steel
oriented electrical
annealing separator
sheet annealing
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Application number
KR1019870015092A
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Korean (ko)
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KR900004064B1 (en
Inventor
최규승
신정철
김의훈
이상완
Original Assignee
정명식
포항종합제철 주식회사
박태준
재단법인 산업과학기술연구소
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Priority to KR1019870015092A priority Critical patent/KR900004064B1/en
Publication of KR890009766A publication Critical patent/KR890009766A/en
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Publication of KR900004064B1 publication Critical patent/KR900004064B1/en

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00—Compounds of magnesium
    • C01F5/02—Magnesia

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

내용 없음No content

Description

방향성 전기강판 소둔분리제용 MgO 제조법Method for manufacturing MgO for oriented electrical steel sheet annealing separator

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

제 1도는 소성시간및 온도에 따른MgO 의 활성화 능력을 나타내는 GAA 도의 변화를 나타내는 그래프,1 is a graph showing the change in the GAA degree indicating the activation ability of MgO with the firing time and temperature,

제 2도는 MgO의 GAA도에 따른 수화정도변화를 나타내는 그래프,2 is a graph showing the degree of hydration according to the GAA degree of MgO,

제 3도는 소성전 Mg(OH)2의 입도 및 소성후 MgO의 입도분포의 누적합을 나타내는 그래프.3 is a graph showing the cumulative sum of the particle size of Mg (OH) 2 before firing and the particle size distribution of MgO after firing.

Claims (1)

해수와 Ca(OH2)와의 반응에 의하여 Mg(OH)2제조시 Mg(OH)2이외의 함유성분중 K, Na 및 Cl의 합을 0.1%이하로 하고 기타성분을 포함하여 총성분을 0.5-3.0%로 제어하며 이후 건조, 파쇄하여 입자크기 50㎛ 이상이 5%이하이면서 평균입경을 3㎛ 이하로 하여 이것을 950-1050℃에서 소성함으로서 CAA도 250-450초의 저활성 MgO를 제조함을 특징으로 하는 방향성 전기강판 소둔분리제용 MgO 제조법.When Mg (OH) 2 is prepared by reaction of seawater with Ca (OH 2) , the sum of K, Na and Cl is less than 0.1% among the components other than Mg (OH) 2 and the total components including 0.5 CAA also produces low activity MgO of 250-450 seconds by controlling it to -3.0% and then drying and crushing to make particle size 50㎛ more than 5% and average particle diameter below 3㎛ and firing it at 950-1050 ℃. MgO manufacturing method for a grain-oriented electrical steel sheet annealing separator characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019870015092A 1987-12-28 1987-12-28 Process for production of magnesium oxide KR900004064B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870015092A KR900004064B1 (en) 1987-12-28 1987-12-28 Process for production of magnesium oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870015092A KR900004064B1 (en) 1987-12-28 1987-12-28 Process for production of magnesium oxide

Publications (2)

Publication Number Publication Date
KR890009766A true KR890009766A (en) 1989-08-03
KR900004064B1 KR900004064B1 (en) 1990-06-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870015092A KR900004064B1 (en) 1987-12-28 1987-12-28 Process for production of magnesium oxide

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KR (1) KR900004064B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100600804B1 (en) * 2005-04-25 2006-07-18 주식회사 포스렉 Method for manufacturing magnesia for annealing separator of oriented electrical steel sheet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101155606B1 (en) * 2012-02-22 2012-06-13 삼화화학공업주식회사 Manufacturing process of magnesia for annealing separator of grain oriented electrical steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100600804B1 (en) * 2005-04-25 2006-07-18 주식회사 포스렉 Method for manufacturing magnesia for annealing separator of oriented electrical steel sheet

Also Published As

Publication number Publication date
KR900004064B1 (en) 1990-06-11

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