Method for producing nano crystalline stone materials

Abstract

A nano-crystal stone material production method comprises steps as follows. Firstly, glass melt is melted. Used raw materials comprises following components and the weight percent of all components is that: 50-70 percent of SiO2, 4-10 percent of CaO, 5-10 percent of MgO, 5-8 percent of Al2O3, 2-8 percent of Na2O, 0-8 percent of K2O, 1-4 percent of ZnO, 1-2.5 percent of B2O3, 1-2 percent of P2O5 and 0-1 percent of Sb2O3. Glass substrate is pressed. Then, the nucleation, the crystallization and the annealing treatment are implemented. Compared with the prior art, the invention has the beneficial effect that because a product is formed through the one-step forming, the continuous crystallization and the annealing, the production procedures are reduced and the cost and the energy consumption are greatly lowered. The invention also has the advantages of short production cycle, low firing temperature and good product performance.

Description

Production method of nano-microcrystalline stone material technical field The invention relates to a production method of nano-microcrystalline stone material. Background technique Glass-ceramics is a composite material in which the base glass of a specific composition with a nucleating agent (individually not added) is heat-treated at a certain temperature to become a uniform distribution of microcrystals and glass phases. The structure, properties and production methods of glass-ceramics are different from those of glass and ceramics. It combines the characteristics of the latter two and has many valuable properties, such as high mechanical strength, good chemical stability and thermal stability, surface hardness and Especially excellent impact resistance and so on. Since the discovery of glass-ceramics, it has been widely used in many fields and developed rapidly. Glass-ceramics was originally (1953) developed from photosensitive glass, and later (1957) Corning Glas...

AI Technical Summary

Problems solved by technology

Its disadvantages are: 1) the scale of the process is small, it is difficult to meet the market demand; 2) the process of the process is complicated, and it is impossible to form a one-stop production, resulting in a high probability of product defects, which reduces the product qualification rate; 3) because the process uses The traditional secondary sintering method results in high energy consumption and more loss; 4) The flatness of the product is difficult to control and the small holes of its own limit the improvement of product quality

Can not meet the market demand for high-quality board