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Preparation method of sand die material of fused zirconia corundum block

A zirconium corundum brick and sand mold technology, which is applied in the field of refractory materials, can solve the problems of sand mold flatness and smoothness polluting the environment, affecting the color of fused zirconia corundum products, and endangering human health. It achieves high product hardness, simple method, The effect of improving flatness

Active Publication Date: 2012-02-15
郑州远东耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a preparation method of fused zirconia corundum brick sand mold material, which can effectively solve the problem of flatness, smoothness and environmental pollution of sand molds, endangering human health and affecting The color problem of fused zirconia corundum products

Method used

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  • Preparation method of sand die material of fused zirconia corundum block
  • Preparation method of sand die material of fused zirconia corundum block

Examples

Experimental program
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Effect test

Embodiment 1

[0012] In an environment with a temperature of 20°C and a humidity of 30%, put the silica sand and triacetin in the sand mixing device and mix for 30 seconds, then add the modified water glass and mix for 60 seconds to obtain the mixture, shape the mixture, and dry After that, the fused zirconium corundum brick sand mold can be obtained. The weight ratio of silica sand: modified water glass: glycerol triacetate is 100:3:0.3, and the modified water glass is calculated by weight percentage: water glass It is made of 85% and 15% polyacrylamide. Polyacrylamide is added to the water glass as a modifier. After stirring and dissolving it evenly, it is placed in a centrifuge and filtered to obtain the filtrate. The filtrate is the modified water glass; Modified water glass has a modulus of 2.3m and a density of 1.46g / cm 3 , Water insoluble matter and impurities are 0.4%; the silica sand is washed with water, dried in the sun, passed through a 40-mesh sieve, with a water content of 0.5%,...

Embodiment 2

[0014] In an environment with a temperature of 22°C and a humidity of 35%, put the silica sand and triacetin in the sand mixing device and mix for 45 seconds, then add the modified water glass and mix for 75 seconds to obtain the mixture, shape the mixture, and dry After that, the fused zirconium corundum brick sand mold can be obtained. The weight ratio of silica sand: modified water glass: glycerol triacetate is 100:4:0.5, and the modified water glass is calculated by weight percentage: water glass It is made of 90% and 10% polyacrylamide. Polyacrylamide is added to the water glass as a modifier. After stirring and evenly dissolving, it is placed in a centrifuge and filtered to obtain the filtrate. The filtrate is the modified water glass; Modified water glass has a modulus of 2.5m and a density of 1.50g / cm 3 , Water insoluble matter and impurities are 0.6%; the silica sand is washed with water, dried in the sun, passed through a 50-mesh sieve, with a water content of 0.4%, a ...

Embodiment 3

[0016] In an environment with a temperature of 25°C and a humidity of 40%, put the silica sand and triacetin in the sand mixing device and mix for 60 seconds, then add the modified water glass and mix for 90 seconds to obtain the mixture, shape the mixture, and dry Then, the fused zirconium corundum brick sand mold can be obtained, the weight ratio of silica sand: modified water glass: glycerol triacetate is 100:5:0.75, and the modified water glass is calculated by weight percentage: water glass It is made of 94% and 6% polyacrylamide. Polyacrylamide is added as a modifier to the water glass. After stirring, it is evenly dissolved, dissolved, and filtered in a centrifuge to obtain the filtrate. The filtrate is the modified water glass; The modulus of the modified water glass is 2.8m and the density is 1.56g / cm 3 , Water insoluble matter and impurities 0.8%; the silica sand is washed with water, dried in the sun, passed through a 70-mesh sieve, with a water content of 0.3%, a mud...

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Abstract

The invention relates to a preparation method of a sand die material of a fused zirconia corundum block, effectively solving the problems of flatness and fineness of the sand die, environmental pollution, the hazard to human body, and influence on the color of the fused zirconia corundum product. The method comprises the following steps: mixing silica sand and glycerol triacetate in a mixing unit, adding modified soluble glass and mixing to obtain the mixture. The method has the advantages of simple process, reasonable ingredients, and easy production, and the prepared product has high hardness and good quality. According to the invention, the flatness, fineness, precision and production efficiency of the sand die are effectively improved, and simultaneously no pollution to the color of the fused zirconia corundum product is generated.

Description

Technical field [0001] The invention relates to a refractory material, in particular to a preparation method of an fused zirconium corundum brick sand mold material. Background technique [0002] The production of fused zirconium corundum refractory bricks is to pour the molten material into a pre-made sand mold for solidification. The flatness and smoothness of the sand mold directly affect the appearance of the fused zirconium corundum product. It is the production of fused zirconium corundum bricks. basis. At present, there are two main methods for making materials for the sand molds required for the production of fused zirconia corundum bricks: electrothermal drying of sodium silicate sand and self-hardening drying of resin sand. [0003] The production method of electrothermal drying of sodium silicate sand is to add a certain amount of sodium silicate to the silica sand as an adhesive, make the required sand mold and then electrothermally dry it to achieve the required stren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 宁本荣龙沾卫赵长顺李万顺
Owner 郑州远东耐火材料有限公司
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