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Silica bricks are acidic refractory materials made from silica with a SiO₂ content ≥94%, combined with mineralizers and fired at high temperatures. The core consists of tridymite, cristobalite, and residual quartz. Advantages of silica bricks Their advantages lie in their…
Silica fire bricks are acidic refractory materials with silicon dioxide (SiO₂) as the main component (usually not less than 94%). They possess core advantages such as high refractoriness (1700~1730℃), good high-temperature volume stability, and high load softening temperature (1640~1670℃). However,…
Recently, a Nigerian customer consulted us regarding the need for refractory materials to repair damaged areas of the rotary kiln’s firing zone. The customer required refractory materials to repair the firing zone. Ruitai’s technical team provided a professional repair solution.…
The refractory materials lining the inner wall of a rotary kiln are crucial for resisting high temperatures, corrosion, and wear, directly affecting the equipment’s service life and production stability. Appropriate materials must be selected based on the working environment of…
Rotary kilns are core thermal equipment in industries such as cement, metallurgy, and chemicals. Their interiors are subjected to complex conditions of high temperatures, chemical corrosion, mechanical wear, and thermal shock. Refractory materials, acting as the kiln’s “protective armor,” directly…
In early March, a customer from the Republic of Uzbekistan contacted us. The customer needed 100 tons of magnesium-chromium spray coating for steel ladles. We first communicated and discussed the specifications and specific applications. Subsequently, the customer held a video…
Unshaped refractory materials, also known as bulk refractory materials, are composed of bulk particles and fine powders. They require neither firing nor shaping before use. Their composition and processing can be flexibly modified as needed. For example, the composition and…
1. Characteristics of castable precast blocks Castable precast blocks require only low-temperature heat treatment, making them low-carbon and green refractory materials, and a unique technology in refractory lining. They can improve the performance of refractory linings, reduce refractory material consumption,…
A UAE customer recently consulted us about converter repair. The customer sought our advice on the appropriate refractory materials for converter repair. The Ruitai Lianxin team provided professional solutions and suggestions. Converter repair requires selecting suitable refractory materials based on…
An electric arc furnace (EAF) is an industrial furnace that uses an electric arc generated by electrodes to melt ores and metals at high temperatures. It is one of the core pieces of equipment in the modern metallurgical industry and…