The difference between

Time:2017/9/11 17:32:31 Click on:

One of the kiln furniture. In the process of firing ceramics, ceramics and green bodies are placed in a container made of refractory materials to prevent damage and contamination of gases and harmful substances to the body and glaze. This container is called Hey, also known as dumplings. The use of enamel firing pottery can not only improve the loading capacity, the product does not bond, and improve the yield, but also has a certain thermal conductivity and thermal stability, can guarantee the quality of ceramics. The shape of a cymbal varies depending on the shape of the device. The black eggshell black pottery that was burned during the Longshan Culture period in China was already used by the mullite stone.

 The process of making a wall is roughly as follows: first take a number of special bamboo pieces, use a string to pass through the direction of the thickness of the bamboo, and then put it upside down, and put the two ends together to form a circular cylinder, and the inside is fixed with an iron circle. The outside is tied with a rope. Then the clay is applied to the outer wall of the cylinder. When it is applied to a certain thickness, the outer side of the cylinder is smoothed with a cloth and then the plastic is repaired with a piece of iron.

    After finishing, remove the iron ring inside the barrel, remove the barrel from the inner surface, then smooth the inner wall and shape. After the fused silica crucible is set, move it to a little to dry it. The process of making the terrestrial stem is roughly as follows: first take a special iron ring whose diameter is equal to or slightly larger than the outer diameter of the concrete wall, and place the mud in the enemy's circle with the foot, so that the mud can evenly fill in all parts of the circle. Then put a ball of mud in the center and tap it tightly. When the wall and the bottom of the raft are properly dried, the raking wall will be smashed and placed on top of the raft, after which the joint will be flattened. The large system consists of straight walls and inclined walls.

  The method of making a straight wall is roughly the same as that of making a wall. The square rule for manufacturing the slanted wall is similar to that of the porcelain blank, because the niobium particle is coarser, so it is necessary to carry out the water work during the plastic repair. After the straight wall and the inclined wall are made, they are adhered to each other with a mortar. The method of bonding is basically the same as the adhesive method of small devices. The prepared blank is still a green body (commonly known as soil rake). The soil rake can not be used for burning porcelain. It is only necessary to plate (ie, roast) the soil ridges into a ring of enamel, and then use it to burn the porcelain. Billet. In order to take care of the kiln, more kiln bodies can be burned, overlapped and fired, together with flames to prevent the flame from directly touching the body. The pollution and chemical effects of soot and ash, as well as the occurrence of uneven heating, etc., so porcelain is often used to fill this indispensable important person

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