Ceramic green body, ceramic plate and preparation method of ceramic green body

Abstract

The invention relates to the technical field of ceramics, in particular to a ceramic green body, a ceramic plate and a preparation method of the ceramic green body, the ceramic green body is mainly prepared from the following raw materials in parts by weight: 30-40 parts of ball clay, 10-20 parts of calcined kaolin, 2-5 parts of bentonite, 6-10 parts of lithium feldspar, 8-12 parts of diopside, 8-15 parts of sylvine powder, 5-10 parts of sodium aluminate, 5-10 parts of pyrophyllite, 2-5 parts of calcined talc and 5-8 parts of an inorganic reinforcing agent; and the inorganic reinforcing agent is a needle-shaped or fibrous inorganic reinforcing agent. The ceramic body and the ceramic plate have higher strength and toughness, and can meet the toughness requirements in the states of daily production, processing and cutting, transfer transportation, application, paving and the like.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a ceramic green body, a ceramic plate and a preparation method thereof. Background technique [0002] With the development of the equipment manufacturing industry and the maturity of equipment and process conditions, ceramic brick products gradually tend to be large-scale, and large-scale ceramic brick products are more integrated than small-sized ceramic brick products in decoration applications, and the joints are more compact. Less, higher flexibility in design and application (such as flexible cutting, flexible design of various shapes), better meet the requirements of designers, and in the application requirements of furniture panels, cabinet panels, elevator door covers, step panels, and counter panels , It is also better to prepare large-scale ceramics with overall effects, which is the preferred direction of consumers. Therefore, judging from the overall situation of th...

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Problems solved by technology

[0003] Therefore, more and more manufacturers are beginning to develop large-scale ceramic sheets, but most ceramic sheets have problems of low flexural strength, low toughness, and high brittleness, and because ceramic sheets do not have plastic deformation like metal sheets Therefore, in the daily production process such as pressing, drying, firing and subsequent transfer and transportation until the installation and use of the terminal, problems such as cracking, missing edges, corner drop, cracking, and damage are prone to occur. Therefore, how to Improving the flexural strength and toughness of ceramic thin plates has become the focus of current research

[0004] In the traditional technology, the green body formula of the ceramic sheet is basically based on SiO 2 、Al 2 o 3 、K 2 O, Na 2 O is used as the main formula component, in which the silicon-aluminum proportion of more than 80% in the green body forms a high-strength green body skeleton at high temperature, and the melting characteristics of basic metal oxides mainly composed of potassium and sodium are used to promote cohesion at high temperature. The formation and growth of molten material mullite, the molten part of SiO 2 , Al 2 o 3 The glass phase is formed to fill in the skeleton of the green body, but the potassium-sodium solution only improves the performance parameters such as high hardness and high strength. After firing, the shrinkage is large, and the stress of the internal structure of the product is relatively large, which leads to the toughness of the product. Low, prone to cracking and other phenomena, unable to meet the toughness requirements in the daily production, processing and cutting, transit transportation and application of ceramic thin plates

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