Preparation process of black-matrix silver drop Jianzhan

Abstract

The invention discloses a preparation process of black-matrix silver drop Jianzhan, which comprises the following steps: washing red soil, field mud and kaolin, sieving, carrying out filter pressing, refining mud, and aging to obtain a green body raw material; enabling the green body raw materials to be subjected to throwing forming, fettling, biscuit firing and air drying, and obtaining a green body; preparing main body glaze and mouth edge glaze; applying mouth edge glaze to the green body, airing, and then applying main body glaze; putting the glazed green body into an electric kiln, closing a furnace door, and starting roasting; and cooling and discharging from the kiln. The green body can be fired at a high temperature and is not easy to deform and blister, the fired building cup has a black and clean glaze substrate, few pores and a moist mouth edge, and meanwhile, silver and glossy oil drop crystal spots are scattered on the glaze, are full, dense and uniform, have strong texture, have primitive simplicity and gorgeous beauty, and have good artistic aesthetic feeling.

Description

technical field [0001] The invention relates to the technical field of porcelain, in particular to a preparation process of Jianzhan. Background technique [0002] In recent years, with the development and progress of society, Jianzhan, as a representative utensil of traditional black porcelain and tea-drinking culture in Song Dynasty, has been more and more recognized by collectors and the market. [0003] The glaze of Jianzhan belongs to crystalline glaze. During the kiln firing process, due to the temperature and atmosphere, it will form various patterns. Due to the special raw material formula and firing process of Jianzhan, the finished product rate of Jianzhan is much lower than that of other porcelains. Among the existing porcelains, although some porcelains have a unique formula, they are not prone to defects when fired, and the yield is high, so they can be mass-produced; The reduction has little effect on the product, and its firing is not difficult. But Jianzha...

AI Technical Summary

Problems solved by technology

[0004] In actual firing, it is often difficult to control the formula, firing atmosphere and temperature curve, and the following defects often occur: body cracking, glaze sticking to the bottom, many pores, glaze jumping, crystal patterns not displayed or not clear, patterns Dim, dry mouth, etc., the yield is very low

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