Technology of firing copper official porcelain in Changsha kiln

The firing process of Changsha kiln bronze official porcelain includes mining, soil mixing, mud making, mud training, mud inspection, molding, drying, decoration, glazing, drying, kiln loading, firing and discharging.

Tongguan, an ancient town, is located on the east bank of Xiangjiang River in Wangcheng District, Changsha City, Hunan Province, and is one of the five Tao Dou in China. Tongguan ceramic industry has a long history, rich cultural connotation and unique ceramic skills. Before Shang Dynasty, Shun Di led the pioneers to create the ceramic industry in Xiangjiang River Valley. In Tang Dynasty, Tongguan ceramics developed rapidly and its ceramic skills gradually matured.

Tongguan is the birthplace of colorful underglaze ceramics in the world. It created a new process of colorful underglaze ceramics, and the ceramic skills of Tongguan kiln in Changsha kiln reflected the innovative spirit of our ancestors. Its production can be called stunts, mainly including drawing, kneading, carving, applique, painting, glaze making, mud making, firing and many other skills.

Tongguan ceramic craft in Changsha kiln is a famous folk craft in China, which has a deep mass base in Tongguan. On both sides of Xiangjiang River, there are endless ceramic cities and fireworks. The pottery-making skills of Tongguan Kiln in Changsha Kiln had a great influence on the ceramic production after the Tang Dynasty. Up to now, a ceramic production area with more than 4,000 employees has been formed in Tongguan Town, and its products sell well all over the country.

Climatic characteristics of Changsha;

Changsha has a subtropical monsoon climate with mild climate, abundant precipitation, simultaneous rain and heat, and distinct four seasons. The annual average temperature in Changsha is 17.2℃, the annual accumulated temperature is 5457℃, the annual average precipitation in the urban area is 13 1.6 mm, and the annual average precipitation in each county is 1358.6+0538.

Summer is about 1 18 to 127 days, winter is 1 17 to 122 days, spring is 6 1 64 days, and autumn is 59 to 69 days. The temperature changes greatly in spring, with more rain in early summer, long high temperature in summer and less cold in winter.

Since the end of May, the temperature has obviously increased. In summer, the average daily temperature is above 30℃ for 85 days, and the average annual temperature is about 30 days on hot days above 35℃. In summer, the weather is very hot and it seldom rains. After the end of September, the days are warmer, the nights are cooler, the precipitation is less, and there are more days with low cloud cover.

165438+ 1 from late October to mid-March of the following year, the severe cold period in Changsha is very short, and1is the coldest in June, with a monthly average of 4.4℃ to 5. 1℃. Overwintering crops can safely overwinter and grow slowly.