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Non-stick aluminum castable

A castable, non-stick aluminum technology, applied in the field of refractory materials, can solve the problems of high cost, achieve the effects of prolonging service life, improving product competitiveness, and large wetting angle

Active Publication Date: 2018-06-19
艾文斯(焦作)冶金材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the technical solution disclosed in the above patent can effectively prolong the service life of refractory materials, frequent maintenance and repairs are required in aluminum alloy processing and production, and fused silica is used as the main material, and the cost of long-term operation is relatively high

Method used

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  • Non-stick aluminum castable

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Experimental program
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Effect test

Embodiment 1

[0023] The proportion of main materials for pouring is as follows: fused silica particles 3~5mm, 20%; aluminum silicate fiber slag balls 0~3mm, 30%; fused silica powder 200 mesh, 13%; aluminate cement CA80, 8%; Sodium phosphate, 0.2%; corundum powder 200 mesh, 10%; composite additives: cryolite 6000 mesh 2%, 320 mesh calcium fluoride powder 8%, activated alumina 6% with particle size less than or equal to 5 microns, particle size less than or equal to 10 micron zircon powder 2.8%.

[0024] The admixture is based on the weight of the pouring main material, and the proportion is as follows: polypropylene explosion-proof fiber 0.3%, citric acid 0.05%.

Embodiment 2

[0026] Fused silica particles 3~5mm, 25%; aluminum silicate fiber slag balls 0~3mm, 35%; fused silica powder 200 mesh, 14%; aluminate cement CA80, 3%; sodium tripolyphosphate, 0.2%; corundum Powder 200 mesh, 10%; composite additive, cryolite 6000 mesh, 2%, 320 mesh calcium fluoride powder 4%, activated alumina with particle size less than or equal to 5 microns, 4%, zircon with particle size less than or equal to 10 microns Stone powder, 2.8%.

[0027] The admixture is based on the weight of the pouring main material, and the proportion is as follows: polypropylene explosion-proof fiber 0.1%, citric acid 0.05%.

Embodiment 3

[0029] The proportion of main materials for pouring is as follows: fused silica particles 3~5mm, 18%; aluminum silicate fiber slag balls 0~3mm, 40%; fused silica powder 200 mesh, 14%; aluminate cement CA80, 8%; Sodium phosphate, 0.2%; corundum powder 200 mesh, 10.8%; composite additives: cryolite 6000 mesh, 1%, 320 mesh calcium fluoride powder 3%, activated alumina with particle size less than or equal to 5 microns, 3.0%, particle size Zircon powder less than or equal to 10 microns, 2.0%.

[0030] The admixture is based on the weight of the pouring main material, and the proportion is as follows: polypropylene explosion-proof fiber 0.4%, citric acid 0.01%.

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Abstract

The invention discloses non-stick aluminum castable. The non-stick aluminum castable contains a pouring main ingredient and an admixture, wherein the pouring main ingredient is prepared from fused quartz particles, aluminum silicate fiber residue balls, fused quartz powder, aluminate cement, sodium tripolyphosphate, alundum powder and a compound additive; the admixture is prepared from polypropylene explosion-proof fibers and citric acid. Compared with the prior art, the invention has the beneficial effects of low cost, high performance, large wetting angle, low coefficient of thermal expansion, high scouring resistance and capability of prolonging service life.

Description

technical field [0001] The invention relates to a non-stick aluminum pouring material, which belongs to the technical field of refractory materials. Background technique [0002] The melting point of aluminum alloy is 660°C, and the casting temperature of aluminum alloy melt is usually 700-750°C. At high temperature, the aluminum alloy melt easily reacts with elements in traditional refractory materials, which affects the quality of aluminum alloy and the quality of aluminum alloy. The passability of the melt, therefore, the refractory materials in contact with the aluminum alloy melt should have the following requirements: 1), good chemical stability; 2), high density and volume stability; 3), not easy to produce furnace 4), good erosion resistance; 5), not easy to be wetted and penetrated by molten metal; 6), good resistance to rapid cooling and rapid heating. [0003] Unshaped materials mainly used in aluminum alloy processing include low-cement aluminum-silicon castable...

Claims

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Application Information

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IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3217C04B2235/3248C04B2235/3418C04B2235/445C04B2235/447C04B2235/449C04B2235/5212C04B2235/528
Inventor 熊雪君张海佑吴方瑞张佳堔王忠伟张世良
Owner 艾文斯(焦作)冶金材料有限责任公司
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