A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR PRODUCING MAGNESIA CHROME BRICK
PROBLEM TO BE SOLVED: To suppress a crack that generates in the firing process of a magnesia chrome brick.SOLUTION: In a method for producing magnesia chrome fired brick containing MgO and CrOas main components of a refractory raw material, a phenolic resin having a residual carbon ratio of 3% or more and 20% or less by mass is used as much as 0.5 to 5% by weight of original weight as a binder added to the refractory raw material. The main components of the refractory raw material comprises 25 to 85 mass% of MgO, 5 to 55 mass% of CrO, 1 to 14 mass% of AlO, 2 to 17 mass% of FeOand less than 5 mass% of impurities.SELECTED DRAWING: None
【課題】マグネシア−クロム質煉瓦の焼成過程でできる亀裂を抑制する。【解決手段】MgOとCr2O3を耐化原料の主成分とした焼成マグネシア−クロム質煉瓦の製造方法であって、耐化原料にバインダーとして残炭率が３〜２０質量％以下のフェノール樹脂を外掛け０．５〜５質量％用いるものである。前記耐化原料の主成分は、MgOを２５〜８５質量％、Cr2O3を５〜５５質量％、Al2O3を１〜１４質量％、Fe2O3を２〜１７質量％及び不純物を５質量％未満有である。【選択図】なし
METHOD FOR PRODUCING MAGNESIA CHROME BRICK
PROBLEM TO BE SOLVED: To suppress a crack that generates in the firing process of a magnesia chrome brick.SOLUTION: In a method for producing magnesia chrome fired brick containing MgO and CrOas main components of a refractory raw material, a phenolic resin having a residual carbon ratio of 3% or more and 20% or less by mass is used as much as 0.5 to 5% by weight of original weight as a binder added to the refractory raw material. The main components of the refractory raw material comprises 25 to 85 mass% of MgO, 5 to 55 mass% of CrO, 1 to 14 mass% of AlO, 2 to 17 mass% of FeOand less than 5 mass% of impurities.SELECTED DRAWING: None
【課題】マグネシア−クロム質煉瓦の焼成過程でできる亀裂を抑制する。【解決手段】MgOとCr2O3を耐化原料の主成分とした焼成マグネシア−クロム質煉瓦の製造方法であって、耐化原料にバインダーとして残炭率が３〜２０質量％以下のフェノール樹脂を外掛け０．５〜５質量％用いるものである。前記耐化原料の主成分は、MgOを２５〜８５質量％、Cr2O3を５〜５５質量％、Al2O3を１〜１４質量％、Fe2O3を２〜１７質量％及び不純物を５質量％未満有である。【選択図】なし
METHOD FOR PRODUCING MAGNESIA CHROME BRICK
マグネシア−クロム質煉瓦の製造方法
SUWA TAKESHI (author) / IGABO KOICHI (author) / KOYAKE TAMIATSU (author) / IIDA MASAKAZU (author)
2018-08-30
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