Causes and solutions of the combined imprints of bone china molds

Today, we of Guangdong Hosen Ceramics will talk to you about the causes and solutions of the combined imprints of ceramic tableware molds: The larger the gap between the two plaster molds, the more prominent the combined imprints of the molds after firing. This is caused by the arrangement of flat clay particles parallel to the mold surface. The clay particles in the gap of the mold protrude outward along the gap. Although the imprints of the mold pieces left on the surface of the green body will be polished off at a later stage of trimming, the clay particles in the mold gaps are arranged radially, which is more parallel to the arrangement of the plaster surface. , The shrinkage of the former is much smaller, so the split imprint of the mold on the green body will be raised again after firing. The shrinkage rate of the clay particles arranged in the longitudinal direction is relatively small, which will cause the repaired mold split imprint to bulge again after firing. Sometimes, different shrinkage rates can also cause cracks in the mold joints. In order to avoid such problems, sometimes it is better to dig a little deeper into the molds on the blank when repairing the blank. Common problems and solutions for ceramic tableware production, so that the surface of the blank will prove to be good after firing. It's smooth. However, people usually replace damaged plaster molds or repair broken joints. It is also a good choice to use grouting mud with less clay content and more filling instead of ordinary mud.
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It is essential to know the basic functioning of to help us understand the components and the part they play.