The traditional grouting for double-layer glass cups is to inject the mud into the plaster mold and draw the moisture of the mud from the mud plaster mold to form a certain thickness of the green body. However, in this natural state, the filter-type grouting forming process is slow, resulting in low efficiency, and the formed double-glazed glass body has inconsistent structure, high water content, and is not easy to release, so that the double-glazed glass is dried and shrunk. Firing shrinkage is large and deformation defects are easily caused.
In order to further absorb the moisture in the mud, ensure the compactness of the embryo body, prevent the occurrence of defects such as cracking and delamination of the embryo body, high pressure injection molding is used in the production of the double glass cup.
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