The difference and application of refractory mud, refractory cement and refractory castable
Refractory mud:
Composition: Refractory mud is usually composed of silicate or high aluminum refractory materials, binders and other additives.
Features: Refractory mud has good plasticity, easy construction, suitable for masonry, repair and connection of high temperature equipment surface of small parts. It can withstand higher temperatures, but the temperature range is relatively low.
Application: Refractory mud is often used in high temperature equipment repair, repair, leak plugging and masonry furnace wall, furnace top and other parts.
Refractory cement:
Composition: Refractory cement is mainly composed of refractory stone, high alumina and other main materials and a certain proportion of binder.
Features: Refractory cement has high temperature resistance and corrosion resistance. It is a kind of structural refractory material, which is suitable for the overall structure of direct masonry high-temperature equipment, and has good compressive strength and stability.
Application: Refractory cement is often used for masonry furnace body, kiln, furnace and other high-temperature equipment overall structure, such as masonry furnace wall, furnace bottom, etc.
Refractory castable:
Composition: Refractory castable is composed of refractory aggregate, binder and water adding agent, etc. The refractory aggregate can be high aluminum aggregate or silicon carbide.
Features: The refractory castable is liquid or semi-fluid, which can be poured into the high-temperature equipment by pouring, spraying and other ways. It has good high temperature resistance and heat shock resistance, and is suitable for high temperature equipment with complex shape and internal structure.
Application: Refractory castables are often used for repairing, sealing and laying inside high-temperature equipment, such as laying the top, bottom and back of the furnace wall.
In summary, refractory mud is suitable for repairing and joining small parts, refractory cement is suitable for overall masonry structures, and refractory castable is suitable for pouring complex shapes and internal structures. According to the specific use needs and equipment conditions, select the appropriate refractory materials for application. Please note that the above information is for reference only, and it is recommended to consult further with professional refractory manufacturers or technicians when actually choosing.
Refractory mud, refractory cement, refractory castable are all amorphous refractory materials, and are more commonly used in the refractory industry. Refractory mud is used for masonry refractory bricks, refractory mud, also known as refractory mortar or joint material. Used as a joint material for masonry of refractory products. Refractory cement is the production of refractory concrete material, refractory castable is made of refractory aggregate, powder and binder, because of the use of pouring construction is also known as pouring material.
First, refractory mud Refractory mud according to the material can be divided into clay, high aluminum, silica and magnesium refractory mud. It is composed of refractory powder, binder and admixture. With refractory clinker powder and an appropriate amount of plastic clay as a binder and plasticizer made of general refractory mud, its normal temperature strength is low, high temperature to form ceramic bond has a high strength. The particle size of refractory mud varies according to the application requirements, and its limit particle size is generally less than 1mm, and some are less than 0.5mm or finer. The selection of refractory slurry materials should be considered together with the materials of refractory products of masonry. In addition to being used as a joint material, the refractory mud can also be used as a maintenance coating for the lining by the modification method or the eruption method.
Refractory cement Refractory cement is also called aluminate cement. Aluminate cement is a hydraulic cementing material made of bauxite and limestone, calcined clinker with calcium aluminate as main component and alumina content of about 50%, and then ground. Aluminate cement is often yellow or brown, but also gray. Used as lining in industrial kilns.
Third, refractory castable
Refractory castable is a kind of amorphous refractory which is widely used and produced now. It is mainly used to build a variety of heating furnace lining and other integral structures. Some high-quality varieties can also be used in smelting furnaces. Such as aluminate cement refractory castable can be widely used in a variety of heating furnaces and other slag free, no acid and alkali corrosion of thermal equipment. In the parts corroded by molten iron, molten steel and slag and the working temperature is high, such as steel trough, steel barrel and blast furnace body, iron ditch, etc., in some parts of metallurgical furnaces and other vessels with direct contact with molten slag and molten metal, the use of high-quality phosphate refractory castable repair also has excellent results.
Through the above we can see that although the three products are amorphous refractory materials, but the use is very different, and each product is divided into different models and types, so you can consult professional technicians when purchasing, choose the right product, so as not to delay the construction period and cause unnecessary losses.
