Firing process of Nixing pottery products

A technology of Nixing pottery and craftsmanship, which is applied in the field of firing technology of Nixing pottery, can solve the problems that need to be improved, and achieve the effects of increasing kiln variation rate and richness of color, reducing shrinkage rate, and increasing firing rate

Inactive Publication Date: 2013-02-13
钦州市奇圣古坭斋坭兴陶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But such firing rate and kiln change rate still need to be improved, especially the works of art masters. It takes several days and a lot of energy for a piece of work. Once fission occurs during the firing process, all previous efforts will be wasted; even ordinary works , it is also necessary to increase the firing rate to reduce production costs and avoid waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take the east clay and the west clay to make blanks, and after the teapot blanks are formed, decorated and dried, the teapot blanks are fired.

[0022] Firing teapot blanks: 1) Dehumidify the teapot blanks, put 100 dried teapot blanks into a kiln with a volume of 4 cubic meters, and gradually increase the temperature at an hourly rate The heating rate of 20°C raised the temperature to 40°C, and continued firing at this temperature for 12 hours;

[0023] 2) Raise the temperature of the teapot body after dehumidification treatment to 1050°C at a rate of 50°C per hour;

[0024] 3) After stopping the heating, put 2kg of kiln materials into the kiln, including 0.5 parts by weight of coal and 2.5 parts by weight of chemical rosin; at the same time, open the air holes on the kiln to discharge smoke for 0.1 hour, then close the air holes for 1 hour, and finally open the air holes Exhaust heat, leave the kiln after cooling, and complete the firing of the green body; among them,...

Embodiment 2

[0026] Take the east clay and the west clay to make blanks, and after the teacup blanks are formed, decorated and dried, the teacup blanks are fired.

[0027] Firing teacup bodies: 1) Dehumidify the teacup bodies, put 200 teacup bodies after drying into a kiln with a volume of 4 cubic meters, and gradually increase the temperature at an hourly rate The heating rate of 25°C raised the temperature to 50°C, and continued firing at this temperature for 11 hours;

[0028] 2) After the dehumidification treatment, the teacup body is raised to 1080°C at a rate of 80°C per hour;

[0029] 3) After stopping heating, put 2.8kg of kiln materials into the kiln, including 1 weight part of coal and 2 weight parts of chemical rosin; at the same time, open the air holes on the kiln to discharge smoke for 0.2 hours, then close the air holes for 1.5 hours, and finally open The heat is discharged from the air holes, and the kiln is discharged after cooling to complete the firing of the green body...

Embodiment 3

[0031] Take the east clay and the west clay to make blanks, and after the vase blanks are formed, decorated and dried, the vase blanks are fired.

[0032] Firing vase blanks: 1) Dehumidify the vase blanks, put 150 dried vase blanks into a kiln with a volume of 4 cubic meters, and gradually increase the temperature at an hourly rate The heating rate of 30°C raises the temperature to 60°C, and at this temperature, the firing continues for 10 hours;

[0033] 2) Raise the temperature of the vase body after the dehumidification treatment to 1100°C at a rate of 100°C per hour;

[0034] 3) After stopping the heating, put 4kg of kiln materials into the kiln, including 1.5 parts by weight of coal and 2.5 parts by weight of chemical rosin; at the same time, open the air holes on the kiln to discharge smoke for 0.4 hours, then close the air holes for 2 hours, and finally open the air holes Exhaust heat, leave the kiln after cooling, and complete the firing of the green body; among them,...

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PUM

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Abstract

The invention discloses a firing process of Nixing pottery products. The process comprises the steps that: (1) blank moisture eliminating is carried out, wherein blanks processed through a drying treatment are placed in a kiln, a temperature is gradually increased to 40-60 DEG C with a heating speed of 20-30 DEG C per hour, and continuous firing is carried out for 10-12h under the temperature; (2) after the moisture eliminating treatment, the temperature is increased to 1050-1100 DEG C with a heating speed of 50-100 DEG C per hour; and (3) heating is stopped, and the blanks are fetched from the kiln after cooling, such that blank firing is finished. According to the invention, moisture eliminating is carried out upon the blanks first, water content in the blanks are slowly discharged by firing under a low-temperature environment. Blank moisture eliminating is uniform, and blank cracking due to breakage caused by large amounts of bubbles produced in the blanks is avoided. With the process, a firing success rate is higher than 95%. Also, during the subsequent high-temperature firing process, blank shrinkage is reduced, and blank cracking rate is reduced, such that firing success rate is further improved.

Description

technical field [0001] The invention relates to a manufacturing process of pottery, in particular to a firing process of Nixing pottery in the process of making Nixing pottery in Qinzhou, Guangxi. Background technique [0002] Nixing pottery refers to Nixing pottery in Qinzhou, which has a history of more than 1,300 years. Qinzhou Nixing pottery works won the gold medal at the International Exposition held in San Francisco, Panama, USA in 1915, and it was listed among the four famous pottery in China, along with Jiangsu Yixing Zisha pottery, Yunnan Jianshui pottery and Sichuan Rongchang pottery are well-known both at home and abroad. Qinzhou Nixing pottery is acid-resistant and alkali-resistant, non-toxic (the release of lead and cadmium is almost zero), it has a unique natural double-pore structure that is breathable and impervious to water, which is conducive to long-term storage of food. Practice has proved that tea leaves are placed in Nixing clay pots There has been no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/32
Inventor 王红飞
Owner 钦州市奇圣古坭斋坭兴陶有限公司
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