Formula and manufacturing method of once fired lightweight ceramics

Abstract

The invention belongs to the field of ceramics, and particularly relates to a formula for firing light ceramic once and a production method of the light ceramic. By means of the formula of the light ceramic, wollastonite and magnesite soil are introduced to replace part of dolomite and limestone, the wollastonite does not contain volatile matters and cannot perform thermal fractionation to release gas, so that the wollastonite is introduced into a blank to form an aluminum calcium silicate system, high-temperature products are anorthite and cristobalite, the reaction temperature is lower, the firing temperature can be reduced, and accordingly, one-time firing of the light ceramic is feasible through the formula; and with adoption of the production method of the light ceramic, energy crisis can be relieved effectively, the production cost can be reduced, the water absorption of a light ceramic product is reduced on the basis of a twice fired product, the mechanical strength is improved, the application range can be enlarged, energy consumption can be reduced by 40% with the production method, the production cost can be reduced by 20%, and remarkable economic and social benefits are achieved.

Description

technical field [0001] The invention belongs to the field of ceramic manufacturing, and in particular relates to a formula capable of firing lightweight ceramics at one time and a manufacturing method thereof. Background technique [0002] The existing lightweight ceramics mainly refer to dolomite, whose main material is extracted from dolomite, hence the name dolomite. Baiyun Porcelain has a thick texture, strong plasticity, high ornamental value, environmental protection, and safety. It is a ceramic category that is widely favored in the world. The characteristics of Baiyun porcelain are as follows: First, it has strong plasticity. Baiyun porcelain has high plasticity, which is incomparable to bone china. Baiyun porcelain products can be made into different shapes, with various shapes, artistic and appreciation. Bone china can only be made into small-sized products, while Baiyun porcelain can be made into large-sized products over 15 inches. This is because porcelain such...

AI Technical Summary

Problems solved by technology

[0003] The existing dolomite porcelain adopts the second-firing process when making it. This is because dolomite and limestone are the main raw materials in the dolomite blank formula. Dolomite and limestone are calcium-magnesium composite carbonate minerals. During the firing process, dolomite and limestone will decompose and produce more than 40% of the volatile gas, which will not be completely decomposed until 1050°C. At this time, the glaze layer of the product is basically closed, and some of the gas is sealed in the glaze layer, causing Glaze surface defects such as glaze pinholes, glaze bubbles, and poor gloss affect product quality, and the product has a high water absorption rate and reduced strength, and the product is difficult to meet the needs of high-end products

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