The classification and characteristics of refractory castable

Pouring material is a kind of granular and powdered materials made of refractory material, and adding a certain amount of binder and water together. It has high liquidity, appropriate construction with casting method, without heating and hardening of monolithic refractories. By refractory aggregate, powder, binder and additive, water or other liquid materials. General in using on-site pouring, vibration or tamping method of casting forming, also can be made into bricks.
Mainly according to the porosity, binder, aggregate species classification. In actual use are often classified by using temperature or functional features.According to the porosity points There are dense refractory castable and porosity of no less than 45% of insulation resistance to fire on two kinds of material.
According to the binder points A hydraulic combination, chemical combination, combined with refractory castable.
Hydraulic combination of castable at room temperature and condensation sclerosis by hydration and hardening, main varieties of Portland cement, ordinary calcium aluminate cement, pure calcium aluminate cement, fused pure calcium aluminate cement castable, etc. Chemical bonded castable at room temperature is generally formed by adding hardening agent and hardening of the chemical reaction, the main varieties are sodium silicate, aluminum sulfate, phosphate castable, etc. Coagulation combined with castable hardening for nodulizing hitches in sintering process, the main varieties have clay castable, etc.
Refractory castable is the production and the most widely used a monolithic refractories. It is mainly used for building various kinds of reheating furnace lining structure as a whole. Some high quality varieties can also be used for smelting furnace. Such as aluminate cement refractory castable can be widely used in all kinds of heating furnace and other slag, acid and alkali erosion of thermal equipment.
As lining of thermal technology equipment and furnace body, the general should be baked before first use, in order to make the physical water and crystal water gradually eliminated, to achieve some degree of sintering, the size and some performance when using a stable state. Baking system has a great influence on the service life. The basic principle of baking system should be and possible dehydration temperature and its content corresponding phase change and deformation, in the certain temperature stages of producing these changes sharply, should slow heating and heat preservation time. If improperly or without baking immediately quick heat in use, easy to produce serious crack, loose or even collapse.

Taurus Refractory ramming mass Factory mainly engaged in professional manufacturer of development, production and sales of the refractory mixture such as melting copper, aluminum and zinc furnace lining. And supply castable refractory for copper smelting, ramming mass for molten copper,fire clay,refractory mortar, refractory cement ,refractory mixture, refractory concrete and silica sand for copper smelting.
Website: http://www.jnrefractory.com  
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