What types of alkali-resistant castables exist and what are their characteristics?   Alkali-resistant castables can withstand alkaline metal oxides such as K2O and Na2O at both medium and high temperatures, acting like regular calcium aluminate cement but composed of alkali-resistant aggregates, powders, adhesives and additives that resist alkaline metal oxides such as K2O and Na2O. Their com...

Types and Processing Methods of Lightweight Insulating Bricks   Bricks can be produced by carving lightweight natural porous rocks into smaller chunks. Brick bodies are composed of natural porous and lightweight materials.   Add easily combustible materials, such as rice husk and sawdust, to form a porous structure. Sublimable substances, like naphthalene, should also be included.  ...

Corundum castables' integral casting process can effectively address desulfurization smelting process issues, including steel penetration into ring pipes and brick defects in impregnated pipework. Corundum castables have long been utilized as prefabricated blocks, and more recently in Japan they've also been utilized in impregnated pipes. One advantage of using castables for impregnated pipe const...

Classification of lightweight castables   1. Low temperature lightweight castable The use temperature of low-temperature lightweight castables is below 900°C, and expanded vermiculite, expanded perlite, ceramsite, etc. are often used as aggregates. Use ordinary Portland cement, alumina cement or water glass as binding agent. For example, the properties of the castable obtained by preparin...

Hot air ducts with combined refractory masonry are usually constructed with standard refractory masonry, using clay or high-alumina bricks for the inner layer. Insulating bricks form the outer layer. Hot air ducts are prone to accidents such as red burning and wind channeling. Complex structures such as the hot air duct outlet, the connection of the hot blast branch and main pipes, the connection ...

What are some of the most commonly used refractory material for kiln liner?   1) Refractory bricks are made up of sintered magnesia, magnesia-carbon bricks and tapping socket bricks.   2) Unshaped refractory material includes magnesia brine, magnesia binder dry, magnesia gunning materials, tap filler and cold and heat-conductive filler. Heavy mullite Brick: 1630-1700, including mullite, ...

How to make castable refractory cement？   Castables as a Refractory Material Should be Manufactured Following the proper procedures, castables should be produced. Large materials should first be coarsely crushed before finely crushing for further screening according to particle size, followed by fine grinding of any finely crushed particles that meet particle size requirements and then finely...

What is the purpose of load softening?     Refractory materials' ability to withstand the erosion caused by hot molten slag without destroying it is known as slag resistance. The term "slag" is used to refer to the metallurgical process of slag, fly ash, fuel ash, different metal melts, furnace charges as well as various gaseous substances etc. which are in contact with refractory m...