Pottery-making technology is the forerunner of mud-making technology, and its development breeds and creates mud-making technology. The result of the sublimation of pottery-making technology is the appearance of porcelain. Sludge settling technology is the result of independent development. The appearance of clay pots and purple sand wares in history proved its existence, and it still has its unique artistic charm and shows its value today. It is another product between pottery and porcelain, and it is classified as stoneware. Controlling the temperature is one of the keys to grasp the quality: if the temperature is too high, porcelain will appear, and the air permeability is poor, which is not desirable; If the temperature is not enough, it will burn into pottery with poor hardness and brittle inside and outside. Therefore, the firing process is the most complicated link in making pottery pots, and the color, hardness and luster of pottery pots are closely related to it.
The production of ancient clay cricket cans required dozens of processes. First, the excavated river mud is filtered by a silk basket. The ancient method of making mud was to hang a special double-layer silk bag in the river, and the mud wrapped in the river flowed into the silk bag. After being filtered by the first layer of silk bags, the fine mud that sinks into the second layer of silk bags is clear mud. With the changes of the times, the flow and velocity of rivers have changed greatly, and it is impossible to completely follow the ancient laws now. ) The extremely fine soil filtered out is the raw material for making cans-clear mud. The muddy cricket jar got its name from this. Then put the filtered mud for more than one year, and it can only be used in winter and summer, and remove it and dry it. The mud jar is "taken from water, taken from fire". This can be traced back to the alchemy of Taoism in China: mud is taken from the water like crude drugs, and a pot in the fire is like pills. At present, while following the ancient law, the cricket jar in Shandong Province is innovating through modern scientific and technological means. In the process of mud refining, mechanical equipment is purchased and the original manual operation is replaced by electricity. The result of this is not only to strengthen the density and hardness of the tank, but also to make the clay tank not produce any bubbles and tiny cracks when it is fired. Generally speaking, the density of sludge pond is about 1.2- 1.4. At present, by using modern technology, the density of sludge tank is increased to about 1.6- 1.8, which increases its usability and proper air permeability.
Dongchangxuan cricket pot adopts the classic north-south type: the bunker in the north is straight, with a horseshoe-shaped waist drum, and the bamboo joint, waist drum, double line, double mouth, round edge and fine wool bottom in the south. And has the following characteristics:
1, yellow river pure clay, made by old technology, without adding any other substances.
2, all colors are pure natural temperature control, without adding any chemical pigments.
3, the air permeability and water absorption are particularly good, just soak in water, which is the basic guarantee for raising crickets.
4. The only open-flame earthen kiln in China, artificially fired, has great collection value.
5. The soil in Shandong contains many elements that are almost suitable for cricket growth, and mountain worms live in mountain basins.