Manufacturing technology of non-glaze ceramic products

Abstract

The invention discloses a manufacturing technology of non-glaze ceramic products. The manufacturing technology comprises the following steps that S10, a clay treatment process is carried out, wherein treatment is carried out to obtain a clay material with the clay fineness larger than or equal to 300 meshes and the moisture ratio ranging from 23% to 45%; S12, a ceramic product blank molding process is carried out, wherein ceramic product blanks are obtained; and S14, a firing process is carried out, wherein the ceramic product blanks are fired to obtain the ceramic products. The step S10 comprises the following sub-steps that S101, clay selection is carried out, wherein clay with the clay content larger than or equal to 98% and the high-temperature resistance larger than or equal to 1200 DEG C is selected; S102, the clay is processed to obtain needed fineness, wherein the clay obtained in the step S101 is processed to obtain the clay material with the fineness larger than or equal to 300 meshes; and S103, moisture in the clay material is drained, wherein the vacuumized clay material with the moisture ratio ranging from 23% to 45% is obtained for standby application. The compactness of the ceramic products obtained through the above technology can be guaranteed without glazing, and the original ecology of the ceramic products is better achieved.

Description

technical field [0001] The invention relates to a manufacturing process of a ceramic product, in particular to a manufacturing process of an unglazed ceramic product. Background technique [0002] Ceramic products include ceramic pots, bowls, spoons, altars, wine bottles and other utensils. They are made of pottery clay as raw materials through batching, molding, drying, roasting and glazing. In the traditional ceramic production process, such as ceramic products such as ceramic wine bottles, ceramic altars, ceramic bowls, ceramic pots, etc., the glazing (such as colored glaze) process is an essential process for ceramic production. The reasons are: one. The appearance of ceramic products is brighter and more beautiful. Second, protect ceramic products and prevent ceramic products from leaking; however, although ceramic products have the above-mentioned advantages after being glazed, they also have certain hazards. This kind of lead compound can be dissolved by acid, and wh...

AI Technical Summary

Problems solved by technology

In the traditional ceramic production process, such as ceramic products such as ceramic wine bottles, ceramic altars, ceramic bowls, ceramic pots, etc., the glazing (such as colored glaze) process is an essential process for ceramic production. The reasons are: one. The appearance of ceramic products is brighter and more beautiful. Second, protect ceramic products and prevent ceramic products from leaking; however, although ceramic products have the above-mentioned advantages after being glazed, they also have certain hazards. This kind of lead compound can be dissolved by acid, and when food comes into contact with glazed surface, lead may be dissolved by organic acid in food

Although the relevant regulations clearly point out the lead content or lead dissolution of ceramic products, in order to reduce costs for some unscrupulous operators, they purchase cheap decorative materials with high lead and cadmium content and unstable performance; If the area is too large, the baking temperature is not enough or the process is not handled properly, the amount of lead dissolved in ceramic products will not meet the standard.

To sum up, when consumers purchase glazed ceramic products, because they are not experts in the field and do not have a deep understanding of the purchased ceramic products, it is likely to lead to the purchase of certain harmful ceramic products

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