Introduction of Molochite-M45

Introduction: Amongrefractory raw materials, due to the different phase composition and chemical composition, the same aluminacontent will show a huge performance difference, resulting in different application. M45, similar to the so-called Molochite, alsocalled bymulliteinChina，only has two phases, mullite phase and glass phase, both of them have a small thermal expansion coefficient, so its thermal shock resistance is excellent, and it is often used in high thermal shock environments, such as kiln furniture.

How to synthesize cordierite industrially?

High temperature solid-state reaction is still a common method for industrial synthesis of cordierite materials, which has the advantages of simple production process and high production efficiency; the major problems of this method are high synthesis temperature, high energy consumption and high production cost. The synthesis temperature of kaolin talc alumina system is 1390 ℃ - 1400 ℃. Using modern testing technology to thoroughly find out the mechanism of high temperature synthesis of cordierite, and actively study the method of reducing the synthesis temperature is of great significance. The future work is to continue to explore the high temperature characteristics of various raw materials, in-depth study of various batching systems, high temperature synthesis reaction mechanism, make full use of China's rich non-metallic mineral resources, and develop a more economical and reasonable batching system In order to achieve low-cost synthesis of high-purity cordierite materials, we should formulate scientific synthesis process system, reduce the synthesis temperature of cordierite.

Molding method and raw material requirement of lig

1. Determination of molding method. There are three ways to produce light mullite bricks at home and abroad: foam method, additive burning method and gasification method. 2. Raw material requirements. A, foam polystyrene beads: the appearance is white, granular, uniform particle size, diameter 0, 5 - 2ram.Molding method and raw material requirement of light mullite brickb. Sawdust: fine sawdust is selected by 2nun sieve, which is easy to be formed because of its high workability and excessive addition. It is difficult to form, easy to expand after drying, and easy to deform when firing, resulting in low strength of the finished product.Molding method and raw material requirement of light mullite brickFormula three, formula four, formula five with foam polystyrene beads as burning additives, foam polystyrene beads do not absorb water, drying shrinkage is small, can not help transfer moisture, brick drying in the first drying process, the internal moisture can not run out in time, the surface is prone to micro cracks. When the body is sintered, the foam polystyrene beads form larger pores, but the surrounding materials are dense and dense. The structure is not structured (see photo), the lightweight mullite brick structure is A.D foam polystyrene beads are burnt B additives, as the burning additive formula six, formula seven, formula eight, formula nine, composite additives are used as burning additives.Molding method and raw material requirement of light mullite brickSawdust can absorb water, help transfer water, easy to burn out, can prevent the brick from cracking, and can play the role of filling the bead space and reducing the density. Foam polystyrene beads have small drying shrinkage and low moisture content after molding. The drying deformation of products is small and the size of finished products is more accurate.