A preparing method of cordierite self-glazed ceramic

Abstract

The invention relates to a preparing method of cordierite self-glazed ceramic. A raw material formula of a green body comprises following components by weight: 20-30 wt% of burnt talc, 10-15 wt% of raw talc, 15-30 wt% of kaolin, 0-5 wt% of lithium feldspar, 5-12 wt% of feldspar, 2-5 wt% of bentonite, 15-18 wt% of aluminum oxide, and 0-5 wt% of quartz. A ceramic product in which a glaze layer is naturally formed on the surface of the green body is prepared by preparing the materials, ball milling, forming and firing. By adding the lithium feldspar and the quartz based on a formula of cordierite ceramic, the firing temperature is reduced, and the firing range is expanded. In addition, by a manner of prolonging the temperature maintaining time, more glass phases are formed on the surface of the green body, a glazing step in production is omitted, the production efficiency is increased, and the production cost is saved. The prepared ceramic product is good in transmissivity, high in whiteness and high in mechanical strength, so that the ceramic has a wide market.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials (ceramics), and in particular relates to a preparation method of cordierite self-generated glaze ceramics. Background technique [0002] At present, most of the domestic research on cordierite ceramics is concentrated in the fields of electronic devices, kiln furniture, and microelectronic packaging materials, while the research in the field of daily-use ceramics is less, because the firing range of cordierite porcelain itself is extremely narrow (about 10~ 15°C) and easy to deform, resulting in a high rate of defective products in production, which increases production costs. At the same time, the process of glazing on the surface of the carcass causes a waste of manpower and material resources in the production of daily-use ceramics. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for preparing cordierite self...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the domestic research on cordierite ceramics is concentrated in the fields of electronic devices, kiln furniture, and microelectronic packaging materials, while the research in the field of daily-use ceramics is less, because the firing range of cordierite porcelain itself is extremely narrow (about 10~ 15°C) and easy to deform, resulting in a high rate of defective products in production and increased production costs. At the same time, the process of glazing on the surface of the carcass causes a waste of manpower and material resources in the production of daily-use ceramics