Low-expansion heat-resistant ceramic plate and manufacturing method thereof

Abstract

The invention discloses a low-expansion heat-resistant ceramic plate and a manufacturing method thereof. Raw materials for manufacturing a plate material are as follows: 23-28 wt% of kaolin, 3-6 wt% of talc, 23-28 wt% of cordierite, 18-21 wt% of bauxite, 4-6 wt% of a scrap reclaimed material and 18-20 wt% of a boron plate sagger waste material. Raw materials for manufacturing a glaze material areas follows: 65-70 wt% of petalite, 10-13 wt% of potassium feldspar, 5-7 wt% of zinc oxide, 4-6 wt% of kaolin, 6-7 wt% of calcined talc and 1-3 wt% of lithium carbonate. The surface of the plate material is coated with the glaze material, and then firing and polishing are carried out to obtain the low-expansion heat-resistant ceramic plate. The low-expansion heat-resistant ceramic plate has the advantages that (1) the formula of the glaze material is changed, a glaze layer is thickened, and the glaze layer is polished, so that the ceramic plate is more beautiful, the expansion coefficient is smaller, the heat resistance is better, water seepage is avoided, and the properties are more close to the properties of microcrystalline glass; and (2) the manufacturing process is relatively simple, mechanical full-automatic processing can be realized, the cost can be controlled, and the price is lower than the price of microcrystalline glass.

Description

technical field [0001] The invention relates to a ceramic plate and a manufacturing method thereof, in particular to a low-expansion heat-resistant ceramic plate and a manufacturing method thereof, and belongs to the technical field of chemical materials. Background technique [0002] At present, most of the induction cooker panels on the market use glass-ceramic plates, and a few use heat-resistant ceramic plates. [0003] The advantages of glass-ceramic plates are small expansion coefficient, good heat resistance, beautiful appearance and impervious to water. However, glass-ceramics has a high melting point and is relatively brittle, so it cannot be fully mechanized and fully polished. It can only be processed semi-mechanized or purely by small enterprises. , so the price is high. [0004] The production method of the heat-resistant ceramic plate is: simple glazing on the surface of the porcelain plate. Therefore, the expansion coefficient of the heat-resistant ceramic p...

AI Technical Summary

Problems solved by technology

[0003] The advantages of glass-ceramic plates are small expansion coefficient, good heat resistance, beautiful appearance and impervious to water. However, glass-ceramics has a high melting point and is relatively brittle, so it cannot be fully mechanized and fully polished. It can only be processed semi-mechanized or purely by small enterprises. , so the price is high