Method for producing microcrystalline glass-ceramics composite board with novel microcrystalline phase

Abstract

The invention discloses a method for producing a microcrystalline glass-ceramics composite board with novel microcrystalline phase, which is characterized in that the composite board takes diopside-containing pyroxene as microcrystalline phase and the production method thereof comprises the steps as follows: firstly, microcrystalline glass granules are prepared; according to the weight percentage, the microcrystalline glass consist of 50-65% of SiO2, 5-25% of Al2O3, 5-20% OF CaO, 2-10% of MgO, 1-8% of K2O+NaO, 0-1% of Li2O, 0-8% of BaO, 0-8% of B2O3 and the balance of nucleating agent, clarifier and corant with the content ranging from 0 to 20%; secondly, a ceramic palette board is prepared; according to the weight percentage, the ceramic palette board comprises 66-75% of SiO2, 13-23% of Al2O3, 0.3-3% of CaO+MgO, 3-8% of K2O+Na2O and the balance of 0-2% of auxiliary raw material; finally, the raw materials are distributed, sintered and post-processed, thus gaining the finished product of the microcrystalline glass-ceramics composite board. The method has the advantages of low production cost, high product quality, good appearance effect, and the like.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for producing a glass-ceramic-ceramic composite plate with a new type of microcrystalline phase. Background technique [0002] Glass-ceramic-ceramic composite panel is a high-end decorative building material product that combines "21st century high-end decorative material" - glass-ceramic with ceramic tiles that can achieve large-scale mechanized production and low cost. At present, due to the high technological content of this kind of composite material and the difficulty of production technology, there are few manufacturers that can achieve normal mass production, and the existing products are only microcrystalline phases of wollastonite (CaSiO 3 ) glass-ceramic-ceramic composite plate, the crystallization characteristic of this microcrystalline phase-wollastonite is that it grows toward the inside of the particle along the edge of the particle of the glass-...

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Problems solved by technology

At present, due to the high technological content of this kind of composite material and the difficulty of production technology, there are few manufacturers that can achieve normal mass production, and the existing products are only microcrystalline phases of wollastonite (CaSiO 3 ) glass-ceramic-ceramic composite plate, the crystallization characteristic of this microcrystalline phase-wollastonite is that it grows toward the inside of the particle along the edge of the particle of the glass-ceramic particle, and the appearance presents a collection of particles, so this kind of Although glass-ceramic also shows crystal clear, rich and luxurious effects, the style of particle collection is somewhat monotonous; moreover, the pores of this glass-ceramic are difficult to overcome, especially before 2005; in order to reduce surface pores, According to the sintering theory of glass pellets, the size of the sintered porosity is directly proportional to the surface tension of the material, inversely proportional to the viscosity of the material, and inversely proportional to the particle size of the material. Therefore, in the existing process, 10 % zinc oxide (it endows the glass with higher surface tension and lower viscosity), and develops a new glass-ceramic-ceramic composite board product whose microcrystalline phase is willemite. This product not only makes the surface porosity easier In addition to being controlled and greatly reduced, its crystallization can break through the boundaries of the original particles and recombine into naturally growing textures with different shapes such as spherical and rhyoidal shapes, which greatly improves the decorative art level of the products; however, since 2005 In the past half a year, the price of zinc oxide has soared, rising from 6,000 yuan / ton to 28,000 yuan / ton in a short period of time. Undoubtedly, this has affected the competitiveness and sales of this type of product in the market, which is not conducive to this high-end composite Promotion of planks

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