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Uses and advantages of low cement castables

Words:[Big][Medium][Small] Mobile Page Two-Dimensional Code 2018-10-15     


Main uses and advantages of low cement castables

Main use: low cement castable, ultra-low cement castables use temperature higher than the same raw materials, general refractory castables, high temperature, clay and high-alumina low-cement castables for heating furnaces, soaking furnaces and other heat treatment furnaces and rotary The kiln is lined with mullite low-cement castable for various high-temperature burner linings, heating furnace water-cooled pipe lining and other corundum and chrome-like corundum low-cement castables for use in some parts of the smelting furnace. Also used in industrial frequency induction furnace lining petrochemical catalytic cracking reactor high temperature wear-resistant fabrics and other Al2O3-SiC-C low-cement castables used as blast furnace tapping trough, iron furnace tapping trough, hot metal pretreatment Powder gun, etc.

Low cement castable castables are also known as refractory castables. A granular and powdered material made from refractory materials in a quantity of contact agent. Highly fluid, suitable for forming amorphous refractories by casting

The application temperature of low cement castables and ultra-low cement castables is higher than that of the general refractory castables. ... the application temperature of low cement castables and ultra low cement castables is higher than that of the general refractory castables of raw materials.

Low-cement castables are similar to general refractory castables. They are composed of refractory aggregates, refractory fines and contact agents. The difference is in the use of refractory fines and associated and matrix. Powder replaces some or all of the alumina cement, and then participates in a small amount of granules to make the ultrafine powder evenly dispersed between the aggregate particles and the aggregates in the submicron-level open space, and then form a uniform and fine arrangement. The key to this type of castable is the introduction of ultrafine powder and its dispersing skills. In the category of unshaped refractory materials, the general cement casting has low temperature strength and poor resistance to detachment. The bauxite-linked castables introduced in the early 1970s have lower internal temperature strength than ordinary cement castables despite the increase in medium temperature strength. Many of them are not satisfied with the needs of industrial furnaces and thermal equipment for refractory materials. In order to change this situation, low-cement high-strength refractory castables have been developed at home and abroad in recent years.


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