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Non-stick aluminum castable

 

This product is made of high-alumina bauxite clinker as aggregate, high-alumina bauxite clinker and magnesia as powder, and water glass as binder. It can be used as steel ladle, molten iron Ladle and tapping channel are integrally lined.


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Basic information of non-stick aluminum castables

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This series of materials is a new type of material with low cement content and ultrafine powder combination based on high-purity mullite, andalusite and sillimanite. Due to the combination of high-purity raw materials and ultra-fine powder, this series of materials has high bulk density, high strength, and good thermal shock stability. Salt, etc.), can greatly reduce the wettability of aluminum and alloys and slag to refractory materials, and improve the corrosion resistance, erosion resistance, and non-sticking of aluminum refractory materials to aluminum liquid containing chemical components such as salt and flux. The slag and slag function prevents aluminum and alloys and slag from penetrating into the refractory material, prolonging the life of the furnace lining. Ideal for melting furnaces, static furnaces, launders, aluminum cladding linings.

2. Technical performance indicators:

Items GMJ-A GMJ-AP GMJ-GP
Index
Al2O3% 65 70 75
Bulk density g/cm3≥ 2.4 2.65 2.75
Compressive strength Mpa≥ 110℃×24h 40 45 45
1300℃×16h 45 50 55
Flexural strength Mpa≥ 110℃×24h 12 15 15
1300℃×16h 14 18 18
line rate of change 1300℃×3h ±0.1 ±0.1 ±0.1
Application range Furnace door, furnace door frame, slag removal slope, discharge port
Material characteristics High strength, high wear resistance, impact resistance, peeling resistance

Physical and chemical performance indicators of non-stick aluminum micro-expansion series refractory castable:

Items BWJ-1 BWJ-1A BWJ-M BWJ-F BWJ-G
Index
ChemicalElement% Al2O3≥ 60 65 65 70 80
Fe2O3≤ 0.6 0.5 0.4 0.4 0.3
BaO+ZnO+B2O3≥ 3 3 3 4 4
Bulk density g/cm3≥ 2.4 2.5 2.65 2.7 2.8
Compressive strength Mpa≥ 110℃×24h 35 40 40 45 45
1300℃×16h 40 45 45 50 50
Flexural strength Mpa≥ 110℃×24h 5 10 10 12 14
1300℃×16h 10 13 13 15 16
line rate of change 1300℃×3h 0~+0.2 0~+0.2 0~+0.2 0~+0.1 0~+0.1
Application range Aluminum melting furnace, furnace roof, furnace wall, furnace bottom, discharge port, aluminum ladle,Launders, degassing boxes, etc.
Material characteristics Material characteristics integrity, high strength, corrosion resistance, peeling resistance, penetration resistance,Good thermal stability, no aluminum, no slag

 

 


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