technical essentials of microsilica for refractory materials-pg电玩城

as the demand of refractories decreases, there is fierce and cruel competition among refractory enterprises in developed countries. the inefficient are gradually eliminated, and the efficient survive. among them, the large - scale enterprises is a good way to improve efficiency.

large enterprises can improve the ability to develop new products. after the merger of enterprises is conducive to avoid duplication of research, which is beneficial to share knowledge, experience and know-how, technical communication, concentrate superior forces to carry on the research, and to build a talent available scientific research team, large-scale enterprises, can improve the quality, such as mining, raw materials, products after the merger of enterprises, can be achieved from mine to control the whole process of the final product. this creates good conditions for stabilizing and improving product quality.

it has been more than 40 years since the use of silica powder in refractories to improve refractories.

1) improve the fluidity of cast refractory, reduce water consumption, make it easy to shape, and greatly improve the production efficiency;

2) the compactness and strength of refractory materials are greatly improved due to the interstitial effect of its ultrastructure;

3) microsilica has high activity. under the premise of the presence of al2o3 ingredients, it is easier to generate mullite phase, which significantly improves the high-temperature strength and thermal shock of refractory materials. at present, in addition to commonly used in castable refractories, it is also widely used in electric melting and sintering refractories.

microsilica is widely used in refractory industry. practical application in the following aspects:

(1) substitute pure aluminum oxide mud for refractory materials.

(2) as an additive to produce amorphous and shaped refractory products, their strength and high temperature performance are greatly improved

(3) as an integral pour and coagulant for steel ladle.

(4) adhesives, binders, coagulants and additives of other refractory products