A method of firing imitation Junhong glaze by in-situ vapor deposition method

Abstract

The invention discloses a method for sintering a Jun porcelain-like red glaze by an in-situ vapour deposition method. The method is characterized in that feldspar, quartz, talcum, calcite and nano alumina are used for preparing a glaze slip, the surface of a ceramic biscuit is coated with the glaze slip to obtain a glazing ceramic biscuit, after the glazing biscuit is dried, the glazing biscuit and a graphite-based composite material are placed in a muffle furnace for sintering, and a Jun porcelain product having the Jun porcelain-like red glaze effect is obtained. The copper-containing graphite-based composite material and the glazing ceramic biscuit are placed in the muffle furnace, under air atmosphere condition, during a sintering process, graphite is insufficiently combusted to generate carbon monoxide having reductibility, copper steam generated during a sintering process is used, the Jun porcelain-like red glaze having moistening glaze character is prepared through the in-situ vapour deposition method, the problems that a copper element compound is added in the glaze and reducing atmosphere is required in the traditional red glaze can be solved, temperature and preparation cost of the Jun porcelain-like red glaze are reduced, and the purposes of environmental protection and energy saving during preparation of the Jun porcelain-like red glaze can be realized.

Description

technical field [0001] The invention relates to the technical field of traditional ceramic preparation, in particular to a method for firing imitation Junhong glaze by an in-situ vapor deposition method. Background technique [0002] As one of the representatives of the five famous porcelains of the Song Dynasty, Jun porcelain is still famous all over the world after the changes of the times, thanks to its rich kiln changes, open pieces and jade-like enamel. As a typical representative of Jun porcelain glaze, imitation Jun red glaze is still regarded as a treasure by ceramic lovers. [0003] At present, it is generally believed that the color of imitation Junhong glaze mainly depends on the low price state of copper element, so the firing of imitation Junhong glaze needs to be fired in a reducing atmosphere and the glaze firing temperature is around 1300°C, and the glaze needs to contain copper elements compound. Usually, copper is introduced by doping a certain proportion...

AI Technical Summary

Problems solved by technology

Usually, copper is introduced by doping a certain proportion of copper-containing compounds in the glaze. In this case, the requirements for the amount and quality of copper-containing compounds are very strict, and the difference in each batch of mineral raw materials may cause firing failure.

In addition, this firing method has relatively high requirements on the control of the reducing flame. If you are not careful, defects such as smoke, dirty color, and flowing glaze may appear, resulting in a low rate of finished products for imitation Junhong glaze, which is not conducive to Imitation Junhong glaze is mass-produced as daily-use enamel and art enamel; on the other hand, most of the industry uses gas firing to fire, which produces a lot of carbon dioxide, carbon monoxide, dust, etc. during the firing process, causing serious damage to the environment. big pollution

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