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Calcination method of Jianshui pottery emerald green natural ash-falling glaze

An emerald green and natural technology, applied in the field of ceramics, can solve problems such as insufficient glaze falling, difficulty in consumer demand, single color change, etc., and achieve a lustrous and crystal clear effect

Pending Publication Date: 2019-06-28
杨建龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing Jianshui pottery wood-fired products have insufficient glaze fall, and the color change is relatively single, which is difficult to meet the needs of consumers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The pot is used as the processor, and the green body made of Jianshui purple pottery and white clay is fired with pine dry firewood. The process of firewood burning is as follows: first fire at 0-150°C for 8 hours, then heat up to 450°C, carry out two carbonization reductions during the heating period, then fire at 450-650°C for 8.5 hours, and then heat up to 950°C During the heating period, two carbonization reductions are also carried out. Continue to heat up to 1150°C, and finally perform high-intensity reduction at 1150-1300°C. After continuing to heat up to 1360°C, seal the kiln for cooling, take it out after cooling, and slightly polish the lid. It can be finished. The heating rate in the process of heating up to 450°C is 50°C / h, and the heating rate in the rest of the heating section is greater than 50°C / h. The interior of the finished product has the texture of traditional firewood, and the surface of the vessel is crystal clear with emerald green color.

Embodiment 2

[0017] The bowl is used as a processor, and the green body made of Jianshui purple pottery and white clay is fired with pine dry firewood. The process of firewood burning is as follows: first fire at 0-150°C for 7.5 hours, then heat up to 450°C, carry out two carbonization reductions during the heating period, then fire at 450-650°C for 9 hours, and then heat up to 950°C During the heating period, two carbonization reductions are also carried out, and the temperature is continued to 1150°C, and finally high-intensity reduction is carried out at 1150-1300°C, and the temperature is continued to rise to 1350°C, then the kiln is closed for cooling, and after cooling, it is taken out, and the bottom foot is slightly polished It can be finished. The heating rate in the process of heating up to 450°C is 60°C / h, and the heating rate in the rest of the heating sections is greater than 60°C / h. The interior of the finished product has the texture of traditional firewood, and the surface...

Embodiment 3

[0019] The plate is used as the processor, and the green body made of Jianshui purple pottery and white clay is fired with pine dry wood. The process of firewood burning is as follows: first fire at 0-150°C for 8.5 hours, then heat up to 450°C, carry out two carbonization reductions during the heating period, then fire at 450-650°C for 8 hours, and then heat up to 950°C During the heating period, two carbonization reductions are also carried out. Continue to heat up to 1150°C, and finally carry out high-intensity reduction at 1150-1300°C. Continue to heat up to 1370°C and then seal the kiln for cooling. After cooling, take it out and polish the bottom foot slightly. It can be finished. The heating rate in the process of heating up to 450°C is 40°C / h, and the heating rate in the rest of the heating sections is greater than 40°C / h. The interior of the finished product has the texture of traditional firewood, and the surface of the vessel is crystal clear with emerald green colo...

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PUM

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Abstract

The invention relates to a calcination method of Jianshui pottery emerald green natural ash-falling glaze. The method is characterized in that firewood calcination is performed on a green body prepared from white clay, and comprises the steps that firstly calcination is performed for 7.5-8.5 hours at 0-150 DEG C, then the temperature is increased to 450 DEG C, and carbonization reduction is performed twice during heating, then calcination is performed for 8-9 hours at 450-650 DEG C, then the temperature is increased to 950 DEG C, and carbonization reduction is performed twice during heating again, then the temperature continues to be increased to 1150 DEG C, finally high-strength reduction is performed at 1150-1300 DEG C, then the temperature continues to be increased to 1350-1370 DEG C, and kiln sealing and cooling are performed. The method can make glaze falling of a vessel subjected to the firewood calcination more sufficient, and the controllable emerald green natural glaze fallingcolor is generated.

Description

technical field [0001] The invention belongs to the technical field of ceramics, and in particular relates to a firing method for Jianshui pottery jadeite green natural ash-falling glaze. Background technique [0002] Jianshui white pottery is a kind of Jianshui pottery, which is mainly made of white clay and green clay in the five-color soil of Jianshui purple pottery. The characteristics of white and blue mud are weak plasticity, strong viscosity and high temperature resistance. They have high content of silicon and aluminum, and their clay is harder than terracotta with high iron content. Therefore, the maximum firing temperature is above 1200°C, which is higher than the firing temperature of purple pottery, and the resulting product has a different appearance. The firewood-fired products of the existing Jianshui pottery have insufficient glaze falling, and the color change is relatively single, which is difficult to meet the needs of consumers. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/32
Inventor 杨建龙王勇姚文灿
Owner 杨建龙