Refractory castable is a special material used in construction, metallurgy, and industrial fields for applications that withstand high temperatures and refractory. The following is an overview of the general refractory castable usage:
Refractory castables ** display.
1.Preparation: Preparation work is required before the refractory castables are used. This includes cleaning and preparing the construction area, ensuring that the surface is dry, clean, and removing any impurities and dirt. At the same time, prepare the required tools and equipment, such as mixers, molds, scrapers, etc.
2.Preparation of refractory casables: Mix the required materials in proportion according to the recipe and instructions of the refractory castable. Usually refractory castables consist of refractory powders, aggregates, binders and additives. Care needs to be taken during the mixing process to ensure that there is a homogeneous mix to obtain the ideal castable.
3.Pouring process: Before the mixed refractory castables are hardened, they are quickly poured into the pre-prepared mold or application area. During the pouring process, a scraper or vibrating tool can be used to remove air bubbles and ensure that the castable fills to the desired location.
4.Drying and hardening: Refractory castables need to be dried and hardened after a certain amount of time after pouring. Depending on the specific refractory casable type and thickness, it may take a few hours or days to wait. During this time, proper humidity and temperature need to be maintained to facilitate the curing process of the refractory castable.
5.Follow-up processingOnce the refractory castable is completely dry and hardened, it can be processed subsequently. This may include trimming, sanding, coating, or other work necessary to ensure that the surface of the refractory castable is smooth, strong, and suitable for the specific application needs.
Refractory castable finished product ** display.
The common types of refractory castables mainly include the following:
1.High-alumina castable: High alumina castable is a kind of castable with high aluminate as the main refractory particle. It has excellent fire resistance and high temperature resistance, and is suitable for high-temperature furnaces, metallurgy and glass industry.
High-alumina castable** display.
2.Silicate castable: Portland castable uses silicate as the main refractory particle, and Portland cement or phosphate cement is used as a binder. It has high fire resistance and chemical stability, and is suitable for high-temperature equipment in metallurgy, electric power, chemical and other industries.
Silicate castable** on display.
3.Magnesium aluminum castable: Magnesium-aluminum castable is a kind of castable with magnesium-aluminate as the main refractory particle. It has good fire resistance and thermal shock resistance, and is suitable for high-temperature equipment such as iron ore sintering machine and steel smelting furnace.
Magnesium aluminum castable** display.
4.Silicon carbide castable: Silicon carbide castables are mainly composed of silicon carbide particles and cured by binders such as organic resins or silicates. It has excellent heat resistance, corrosion resistance and thermal shock resistance, and is suitable for high-temperature equipment in foundry, chemical, electronics and other fields.
Silicon carbide castable** display.
5.High-temperature concrete: High-temperature concrete is a kind of castable with refractory aggregate and refractory cement as the main components. It has high strength and fire resistance, and is suitable for high-temperature furnaces, chimneys, thermal power plant boilers and other projects.
High-temperature concrete
Refractory castables are widely used in metallurgy, oil refining, chemical industry, electric power, steel and glass and other fields. They are used in the lining of high-temperature equipment, withstand high temperatures and corrosion, extend the life of the equipment and ensure the safety and stability of the production process.
Refractory castable applications.
Please note that the above steps only provide an overview of how to use refractory castables in general. The exact method of use may vary depending on the type of refractory castable, the field of application, and the project requirements. Before using refractory castables, it is advisable to refer to the relevant product instructions and professional advice, and to follow proper safety operating procedures.
Refractory castables