Ramming material castable are both refractory materials, but there are also differences between the two:
1. The difference of raw material composition: The ramming material is mainly an unshaped refractory material made of aggregate powder with a certain particle gradation plus binder additives, which is mainly constructed by manual mechanical ramming. Magnesia ramming materials include corundum ramming materials, high alumina ramming materials, silicon carbide ramming materials, carbon ramming materials, silicon ramming materials, magnesia ramming materials, etc. Like the electric furnace bottom ramming material, silicon carbide, graphite, electric calcined anthracite as raw materials, mixed with a variety of ultra-fine powder additives, fused cement composite resin as a binder made of bulk materials. It is used to fill the gap between the furnace cooling equipment the masonry the filler for the masonry leveling layer. Castable is a kind of granular powdery material made by adding a certain amount of binder to refractory materials. With high fluidity, it is suitable for unshaped refractory materials formed by casting. The three major components of the castable are the main component, the external component the impurities, which are divided into: aggregate, powder binder. The raw materials o
2. The difference in the scope of application of construction: Be sure to pay attention to uniform force smooth construction. Ramming materials are generally used for kiln parts refractory bricks cannot be built are difficult to build. The construction of the ramming materials is relatively simple, is used to fill the gap between the furnace cooling equipment the masonry the filler for the masonry leveling layer. The castables are mainly used to construct various heating furnace linings other integral structures. Certain high-quality varieties can also be used in smelting furnaces. For example, aluminate cement refractory castables can be widely used in various heating furnaces other thermal equipment without slag acid alkali corrosion. In the parts that are corroded by molten iron, molten steel molten slag have high working temperature, such as tapping trough, ladle, blast furnace body, tapping trough, etc., a combination of low calcium pure high alumina cement can be used. A refractory castable made of high-quality granular powdery materials with high alumina content good sintering. For another example, phosphate refractory castables can be widely used in heating furnaces soaking furnaces for heating metals, as well as coke ovens cement kilns that directly contact materials. In some parts of metallurgical furnaces other vessels that are in direct contact with slag molten metal, repairing with high-quality phosphate refractory castables also has a good effect. To sum it up, the castable can be used for the casting of key parts of the furnace body, such as the furnace door frame the vicinity of the feeding port; the molten metal pouring runner is generally cast with castables. After a period of use, the castables will fall off require regular Patch up the place.