A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MAGNESIA-CARBON BRICK
PROBLEM TO BE SOLVED: To provide a magnesia-carbon brick excellent in corrosion resistance and spalling resistance even with the graphite amount of 10 mass% or less.SOLUTION: A refractory raw material compound containing magnesia of 85 mass% to 93 mass%, graphite of 6 mass% to 10 mass%, carbon black of 0.1 mass% to 2 mass% and metal Al of 0.1 mass% to 15 mass% based on the total amount of the graphite and the carbon black with a coarse particle of the magnesia having a particle diameter of 1 mm or more and less than 5 mm of 15 mass% to 50 mass%, an intermediate particle having the particle diameter of 0.075 mm or more and less than 1 mm of 35 mass% to 60 mass% and a mass ratio of fine particles of the magnesia having the particle diameter of less than 0.075 mm to the intermediate particle of the magnesia having the particle diameter of 0.075 mm or more and less than 1 mm of 0.24 or less as a particle size constitution is used, mixed, molded and then heat treated.
【課題】黒鉛量を１０質量％以下にしても、耐食性及び耐スポーリング性に優れるマグネシアカーボンれんがを提供すること。【解決手段】マグネシアを８５質量％以上９３質量％以下、黒鉛を６質量％以上１０質量％以下、カーボンブラックを０．１質量％以上２質量％以下、及び金属Ａｌを黒鉛とカーボンブラックとの合量に対して０．１質量％以上１５質量％以下含み、しかも前記マグネシアの粒度構成として、粒径１ｍｍ以上５ｍｍ未満のマグネシアの粗粒が１５質量％以上５０質量％以下、粒径０．０７５ｍｍ以上１ｍｍ未満のマグネシアの中間粒が３５質量％以上６０質量％以下、粒径０．０７５ｍｍ以上１ｍｍ未満のマグネシアの中間粒に対する粒径０．０７５ｍｍ未満のマグネシアの微粒の質量比が０．２４以下である耐火原料配合物使用し、これを混練し、成形後、熱処理する。【選択図】なし
MAGNESIA-CARBON BRICK
PROBLEM TO BE SOLVED: To provide a magnesia-carbon brick excellent in corrosion resistance and spalling resistance even with the graphite amount of 10 mass% or less.SOLUTION: A refractory raw material compound containing magnesia of 85 mass% to 93 mass%, graphite of 6 mass% to 10 mass%, carbon black of 0.1 mass% to 2 mass% and metal Al of 0.1 mass% to 15 mass% based on the total amount of the graphite and the carbon black with a coarse particle of the magnesia having a particle diameter of 1 mm or more and less than 5 mm of 15 mass% to 50 mass%, an intermediate particle having the particle diameter of 0.075 mm or more and less than 1 mm of 35 mass% to 60 mass% and a mass ratio of fine particles of the magnesia having the particle diameter of less than 0.075 mm to the intermediate particle of the magnesia having the particle diameter of 0.075 mm or more and less than 1 mm of 0.24 or less as a particle size constitution is used, mixed, molded and then heat treated.
【課題】黒鉛量を１０質量％以下にしても、耐食性及び耐スポーリング性に優れるマグネシアカーボンれんがを提供すること。【解決手段】マグネシアを８５質量％以上９３質量％以下、黒鉛を６質量％以上１０質量％以下、カーボンブラックを０．１質量％以上２質量％以下、及び金属Ａｌを黒鉛とカーボンブラックとの合量に対して０．１質量％以上１５質量％以下含み、しかも前記マグネシアの粒度構成として、粒径１ｍｍ以上５ｍｍ未満のマグネシアの粗粒が１５質量％以上５０質量％以下、粒径０．０７５ｍｍ以上１ｍｍ未満のマグネシアの中間粒が３５質量％以上６０質量％以下、粒径０．０７５ｍｍ以上１ｍｍ未満のマグネシアの中間粒に対する粒径０．０７５ｍｍ未満のマグネシアの微粒の質量比が０．２４以下である耐火原料配合物使用し、これを混練し、成形後、熱処理する。【選択図】なし
MAGNESIA-CARBON BRICK
マグネシアカーボンれんが
HIRASHIMA YUMI (author) / MATSUURA OSAMU (author) / TAKEUCHI KAZUHIKO (author) / SATO HIROSHI (author) / HANAGIRI SEIJI (author) / KASAI ATSUYA (author) / KAGEYAMA KOJI (author) / SATO MASAHARU (author) / YAMADA KOJI (author) / WATANABE KUNIHIKO (author)
2015-12-24
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE