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Thick layer firing method of underglaze stacking material

A technology for stacking and china, which is applied in the field of thick layer firing of underglaze stacking materials, can solve the problems of thick layer pigment falling off, prone to falling pits, uneven glaze surface, etc. The effect of market share

Active Publication Date: 2017-03-29
福建省德化县卓越陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a thick-layer firing process of underglaze color stacking materials to solve the problem that the existing underglaze color stacking material thickness is directly fired at 1340°C, which is prone to pits, uneven glaze surfaces, and even thick layers of pigments. Problems such as falling off or bursting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for firing thick-layer tea sets with underglaze materials:

[0022] (1) Heating section: Send the green body with a thick layer of underglaze material into the kiln, slowly raise the temperature from 0°C to 300°C within 5.0 hours, and then raise the temperature from 300°C to 900°C to enter the oxidation process part;

[0023] (2) Oxidation section: Slowly raise the temperature from 900°C to 1100°C within 7.2 hours, and then raise the temperature to 1320°C to enter the constant temperature section;

[0024] (3) Constant temperature section: keep firing at 1320°C for 4.2 hours, and immediately enter the cooling section;

[0025] (4) Cooling section: Open the sealed door of the kiln, first open the small gap, gradually increase from small to large, and reduce the temperature to normal temperature within 6.2 hours, that is, the underglaze thick layer tea set.

Embodiment 2

[0027] A firing method for a thick-layer water cup with piled underglaze materials:

[0028] (1) Heating section: Send the green body with a thick layer of underglaze material into the kiln, slowly raise the temperature from 0°C to 300°C within 5.5 hours, and then raise the temperature from 300°C to 900°C to enter the oxidation process part;

[0029] (2) Oxidation section: Slowly raise the temperature from 900°C to 1100°C within 7.5 hours, and then raise the temperature to 1325°C to enter the constant temperature section;

[0030] (3) Constant temperature section: keep firing at 1325°C for 4.5 hours, and immediately enter the cooling section;

[0031] (4) Cooling section: Open the sealed door of the kiln, first open the small gap, gradually increase from small to large, and reduce the temperature to normal temperature within 6.5 hours, that is, the underglaze thick layer water cup.

Embodiment 3

[0033] A firing method for underglaze thick-layer tea caddy:

[0034] (1) Heating section: Send the green body with a thick layer of underglaze material into the kiln, slowly raise the temperature from 0°C to 300°C within 6.0 hours, and then raise the temperature from 300°C to 900°C to enter the oxidation process part;

[0035] (2) Oxidation section: Slowly raise the temperature from 900°C to 1100°C within 8.0 hours, and then raise the temperature to 1330°C to enter the constant temperature section;

[0036] (3) Constant temperature section: keep firing at 1330°C for 5.0 hours, and immediately enter the cooling section;

[0037] (4) Cooling section: Open the sealed door of the kiln, first open the small gap, gradually increase from small to large, and reduce the temperature to normal temperature within 6.8 hours, that is, the underglaze stacked thick layer tea can.

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Abstract

The invention discloses a method for firing a stockpiling thick layer under a glaze. Firing is conducted according to the following stages of the temperature rising stage, the oxidation stage, the constant temperature stage and the cooling stage. According to the temperature increasing stage, a biscuit of the stockpiling thick layer under the glaze is sent to a kiln, after the temperature is slowly increased to 300 DEG C from 0 DEG C within 5.0-6.0 hours, the temperature is increased to 900 DEG C from 300 DEG C, and the oxidation stage is executed; according to the oxidation stage, the temperature is slowly increased to 1100 DEG C from 900 DEG C within 7.0-8.0 hours, then the temperature is increased to 1320-1330 DEG C, and then the constant temperature stage is executed; according to the constant temperature stage, the temperature is kept within 1320-1330 DEG C, firing is conducted for 4.0-5.0 hours, and the cooling stage is executed; according to the cooling stage, a kiln sealing door is opened with the door gap becoming gradually larger, and the temperature is lowered to the normal temperature within 6.0-7.0 hours. Ceramic obtained by firing the stockpiling thick layer under the glaze is strong in stereoscopic impression, clear in shade and distance, obvious in concave part and convex part, high in artistic ornamental value and collection value and capable of increasing the market share.

Description

technical field [0001] The invention relates to the technical field of ceramic technology, in particular to a thick-layer firing method for stacking underglaze materials. Background technique [0002] Underglaze color is a main decorative method of ceramics. It is to draw patterns on the formed and dried biscuit (ie semi-finished product) with various color pigments, and then cover it with white transparent glaze or other light-colored surface glaze, and enter the kiln. Fire once at high temperature. The fired pattern is covered by a layer of transparent glaze film, and the surface is bright, soft and crystal clear. [0003] In order to make the patterns show shades of color or a three-dimensional effect to meet the needs of more consumers, usually several layers of pigments (called thick layers of piled materials) are manually piled on the biscuits that need dark patterns, and then sent to the kiln after being glazed. Furnace firing, the traditional firing method is to di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/34C04B35/64C04B41/86
Inventor 颜宝敬
Owner 福建省德化县卓越陶瓷有限公司
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