High-alumina castable

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1000

High-alumina castable

The main raw materials of high alumina refractory castable, plastic refractory and ramming mass are high alumina bauxite, corundum, etc., and high-alumina cement, pure calcium aluminate cement, ultrafine powder, high quality clay and inorganic salts like phosphoric acid, phosphate and aluminum sulfate are binding agents. 　　The main construction methods include vibration casting, gravity casting, ramming and smearing, which are suitable for all kinds of high temperature kilns.

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Amorphous metallurgical material

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High Aluminium Castable

　　The main construction methods include vibration casting, gravity casting, ramming and smearing, which are suitable for all kinds of high temperature kilns.

High alumina castable, the physical and chemical indicators are shown in the following table:

brand Number		GLJ-60	GLJ-70	GLJ-80
Al2O3 ; %		≥60	≥70	≥80
Bulk Density g/cm3	110℃×24h	≥2.4	≥2.5	≥2.65
Room temperature compressive strength MPa	110℃×24h	≥30	≥40	≥40
Room temperature compressive strength MPa	1450℃×3h	≥40	≥50	≥50
Room temperature flexural strength MPa	110℃×24h	≥4	≥5	≥5
Room temperature flexural strength MPa	1450℃×3h	≥6	≥7	≥7
Reburn line changes %	1450℃×3h	±0.5	±0.5	±0.5