Two main reasons for Wholesale Ceramic Glazed Mugs with lid
Two Main Reasons for Glaze Shrinkage of Wholesale Ceramic Glazed Mugs with lid
Second the main reason is that the glaze plastic content too much, even in the dry period, the glaze shrinkage is too serious, resulting in micro cracks, the glaze cracking. In the process of firing, it is easy to form a pile of glaze, forming a block, and can not be uniformly fused to cover the body. This defect often in the burned blank. Therefore, this kind of glaze suitable in green pigment not on the beat. In order to meet in biscuiting blank, appropriate to add some such as calcined clay and clay, calcite and other non plastic raw material in the glaze. The amount of raw material added is equal to a certain amount of plastic material. In addition, the fingers gently dry friction porcelain glaze, the glaze surface becomes smooth, can also help eliminate some cracks in the glaze. In the dry glaze has not yet reached the requirements, defects and faster heating is easy to produce pile of glaze.
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