There are many factors that cause deformation of insulating ceramic products produced by industrial ceramic manufacturers: such as body formula, forming, drying system, etc., which may cause deformation ; Generally speaking, the greater impact is on the firing system, mainly due to the unreasonable temperature difference setting between the upper and lower rollers. This will cause ceramic products to have defects such as warped corners, bent corners, and upturned edges.
Insulating ceramic parts products produced by precision industrial ceramic manufacturers have warping angles in which all four corners of the body are upturned, and the rest of the surface is flat or only slightly downward. Concave, this defect occurs in the middle and sides of the kiln. It is caused by the excessive temperature difference between the upper and lower roller planes in the later stages of firing. If the kiln exit size is correct, lower the temperature of the upper parts of the 2-3 groups (boxes) of rollers after firing and equally increase the temperature of the lower part of the roller table. If the size of the product after firing is too large, only increase the temperature under the roller table by 5-10°C or more; If it is too small, then only increase the temperature on the roller table by 5-10°C or more, so that the above-mentioned undesirable phenomena can be well improved.
Ceramic Processing Manufacturer The corners of the products produced are just opposite to the warping defect. It means that the four sides of the body are curved downwards and the rest of the surface is flat. Straight or only slightly convex. This defect occurs in the middle and sides of the kiln. It is due to the flatness of the roller table in the later stages of firing.Caused by excessive temperature difference between the upper and lower surfaces. The solution is the opposite of the warping angle above. The upturned edges are the two parallel sides of the billet that bend upward along the direction of entering the kiln, and the deformation of the two sides in the perpendicular direction is not obvious. The reason is that the temperature difference between the upper and lower rollers in the early stage of the firing zone is unreasonable. In order to solve this problem, you can increase the temperature above the roller table by 5-10°C or more in this area, and at the same time lower the temperature below the roller table to make it slightly concave, but not convex. In this way, use The tubular green body of the product produced by the alumina ceramic manufacturer maintains balance at the lower softened protruding points, and the green body returns to straightness due to the action of gravity.
