Lightweight mullite castable is a high-performance inorganic non-metallic refractory material with a series of remarkable characteristics. The following is a detailed summary of its characteristics:
High temperature stability: Lightweight mullite castable has high refractoriness and thermal stability, and can be used in high temperature environments for a long time without obvious performance changes. Its long-term use temperature can reach 1350°C, and it can be used as a working lining in direct contact with flames to meet the demanding requirements of high-temperature industrial kilns.
Excellent thermal insulation properties: The material has low thermal conductivity and therefore has good thermal insulation properties. Compared with ordinary castables, lightweight mullite castables can reduce kiln heat loss by 25% to 35%, thus saving about 10% of fuel. It can effectively reduce the heat loss of the kiln, improve energy utilization and reduce production costs.
Good corrosion resistance: Lightweight mullite castable has strong resistance to corrosive media such as acids and alkalis, and can be used for a long time in harsh working environments to maintain the stability of its structure and performance.
High strength and low density: Lightweight mullite castables have high compressive strength while maintaining a low density. Compared with ordinary low-cement castables, lightweight mullite castables can reduce the structural weight by more than 30% when used, avoiding safety hazards such as structural brick breakage and collapse. This characteristic gives it greater stability when subjected to high temperature loads while reducing the overall weight of the kiln.
Good construction performance: Lightweight mullite castable has good fluidity and plasticity, and is easy to construct and shape. It can be poured on-site as a whole, or made into prefabricated parts of various shapes for combined installation, meeting the needs of various complex shapes and structures, and improving construction efficiency and quality.
Flexible composition adjustment: The composition of lightweight mullite castables can be flexibly adjusted according to actual needs, such as the type, structure and properties of aggregates, the selection and addition amount of combined systems, and the selection of water reducing agents and other additives, etc. . This flexibility allows it to adapt to the specific requirements of different industrial kilns, providing customized solutions.
Lightweight mullite castables have been widely used in many fields, such as ceramic industry, glass, etc. due to their excellent high temperature stability, thermal insulation performance, corrosion resistance, high strength and low density, and good construction performance. Industry, steel industry, electric power industry and chemical industry, etc.
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