Composition of ceramic crucibles

Time:2017/8/25 16:43:28 Click on:

Today Xiao Bian gave us a brief introduction to the composition of ceramic crucibles.

   The small device consists of a wall (also known as a dome) and a base. 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 has been walled, move it 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 is dry and the bottom is dry, put the pulp on the edge of the bowl and place it on top of the floor. After that, 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 law of manufacturing sloped walls is similar to that of porcelain blanks. Mullite stoneware is only because of the coarser muddy granules. Straight walls and inclined walls, after being prepared, they are bonded 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 匣). The soil 匣 can not be used for burning porcelain, and only after the 匣 (ie roasting) of the soil 成 is made into a 匣 (authentic 匣) can it be used to burn porcelain. Billet. Now there are mullites, corundum mullite, alumina, etc., which are used in the manufacture of industrial crucibles.

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