Novel cover plate

Abstract

The invention discloses a novel cover plate. The novel cover plate is composed of a cover plate body (1) and a feeding port (2), wherein the feeding port (2) is formed in the center of the cover plate body (1). The novel cover plate is scientific and reasonable in design, simple in structure, convenient to install and long in service life, slurry raw material leakage is avoided, slurry is saved, and the comprehensive yield of products is improved. The novel cover plate can be widely applied to quartz crucible manufacturing and is an ideal product which can replace existing cover plates of the plaster mold on the market.

Description

technical field [0001] The invention relates to the field of solar energy materials, in particular to a novel cover plate. Background technique [0002] Today, quartz crucibles are widely used in various fields, especially in the field of solar materials. The gypsum mold core formed by double-sided casting and 4 sidewall gypsum boards are used to form a gypsum mold. A cover plate is added to the gypsum mold, and the prepared slurry is injected to finally make a quartz crucible. The gypsum mold produced by the double-sided slurry suction method can be put into use after drying, surface treatment, and water and inkjet spraying after mold closing. When in use, the top of the gypsum mold needs to be covered with a cover, and a funnel is installed, and then the mixed and tested slurry is slowly and uniformly poured into the mold. a process. Practice has proved that there are three major problems in the traditional cover plate: first, the traditional cover plate is a plastic ri...

AI Technical Summary

Problems solved by technology

Practice has proved that there are three major problems in the traditional cover plate: first, the traditional cover plate is a plastic rice-shaped board, because the surface of the rice-shaped board is concave below the plane, the lower surface of the molded product will have a "rice"-shaped rib, which is burnt and polished If it is eliminated later, it will increase the consumption of slurry during pouring; the second is that the Pozier plate is limited to a fixed shape, and when it is dried and fired, it will produce internal stress due to shrinkage, which will cause cracks at the bottom of the crucible and affect product quality; The production process is cumbersome, time-consuming and labor-intensive

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