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Bonding clay used for kiln refractory bricks, and preparation process thereof

A refractory brick and bonding technology, which is used in the bonding field in the production process of daily-use porcelain, artistic porcelain and sanitary ceramics, can solve the problems of easy falling off, white color, low strength, etc., and achieve the effect of reducing the cost of construction

Inactive Publication Date: 2015-07-15
HUIHUANG PLUMBING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw materials are all collected outside, which is expensive, and after being fired in the kiln, the bond is not firm, it is easy to fall off, the strength is not high, and the color is not white after firing.

Method used

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  • Bonding clay used for kiln refractory bricks, and preparation process thereof
  • Bonding clay used for kiln refractory bricks, and preparation process thereof
  • Bonding clay used for kiln refractory bricks, and preparation process thereof

Examples

Experimental program
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Effect test

Embodiment

[0023] A bonding mud for kiln refractory bricks, which is mainly made by mixing the following raw materials through ball milling:

[0024]

[0025] Among them, the particle size of kaolin, alumina powder, and black clay is less than 50 μm, and the water glass is polyhydrated sodium silicate solution, and the bonding mud with a particle size of 20 μm after ball milling accounts for 50%;

[0026] The chemical composition of the refractory brick bonding mud is: SiO2 accounts for 40wt%, Al2O3 accounts for 45wt%, MgO accounts for 0.7wt%, CaO accounts for 0.75wt%, K20 accounts for 0.2wt%, Na20 accounts for 3wt%, Fe2O31wt%, TiO2 accounts for 0.85wt%, the balance impurity.

[0027] A further preparation process for kiln refractory brick bonding mud: follow the steps below:

[0028] 1), according to kaolin 10-50wt%, alumina powder 10-30wt%, black clay 15-50wt%, water glass 30-70wt% ratio to take each raw material for use, wherein the particle size of kaolin, alumina powder, black c...

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Abstract

The invention discloses bonding clay used for kiln refractory bricks, and a preparation process thereof. The bonding clay is mainly prepared through the steps that kaolin, alumina powder, black clay and water glass are mixed, and that the mixture is ball-milled and stirred. In the raw materials, the particle sizes of kaolin, alumina powder and black clay are all smaller than 50mu m, such that a firing temperature is relatively low. With a reasonable formulation described in the technical scheme, the molar ratio of the high-temperature components SiO2 to Al2O3 in the bonding clay is controlled within a range of 8-10; the weights of MgO, CaO, BaO, B2O3, K20 and Na20 with high fusibility promotion properties are increased; and in the bonding clay, particles with sizes smaller than 20mu m account for more than 50%. Compared to prior arts, the bonding clay provided by the invention can be fired under a relatively low temperature (1150 DEG C), such that energy can be saved, and consumption can be reduced.

Description

technical field [0001] The invention relates to the bonding field in the production process of daily-use porcelain, artistic porcelain and sanitary ceramics, in particular to a bonding mud used for kiln refractory bricks and a preparation process thereof. Background technique [0002] Bonding is a necessary process when making pots, cups, small mouth vases and altars and other daily-use porcelain, art porcelain or sanitary ceramics that cannot be integrally formed. The bonding process refers to bonding the formed parts together with a certain consistency of bonding mud to form the shape required by the design. When bonding, it must be grasped that the moisture content of each part is roughly the same, and that it has appropriate strength and is not easy to deform. Otherwise, due to inconsistent shrinkage during the drying and firing process, a large stress will be generated at the bonding point, causing the parts to fall off. When bonding, also pay attention to the correct ...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 温海生
Owner HUIHUANG PLUMBING GROUP