Jul 30 , 2025
High-density calcium silicate boards are primarily used as molten aluminum contact linings in various furnaces, including melting furnaces, holding furnaces, and transfer launders. Their excellent insulation properties and resistance to aluminum wetting make them ideal for reducing heat loss, improving melt quality, and extending furnace life. They are a superior choice for applications where direct contact with molten aluminum is required.
Unlike traditional refractory bricks or castables, high-density calcium silicate boards offer a unique combination of low thermal conductivity and high mechanical strength. This results in significantly better insulation, leading to reduced energy consumption and more stable melt temperatures. They are also typically easier to install and replace, reducing downtime, and are less prone to cracking from thermal shock. Their non-wetting properties are also a key differentiator, preventing aluminum adhesion and dross buildup.
The lifespan of a high-density calcium silicate board in an aluminum furnace can vary depending on operational conditions such as temperature fluctuations, alloy composition, and mechanical stress. However, due to their superior resistance to aluminum wetting, thermal shock resistance, and high purity, these boards generally offer an extended service life compared to many conventional refractory materials. Proper installation and maintenance practices can further prolong their durability.
Yes, our high-density calcium silicate boards are considered both safe and environmentally friendly. They are typically asbestos-free and manufactured using natural, inert raw materials. Their excellent insulation capabilities contribute to energy efficiency, leading to reduced greenhouse gas emissions. They are designed to be stable at high temperatures, with minimal off-gassing, contributing to a safer working environment.
Absolutely. We understand that every furnace design and aluminum casting process may have unique requirements. Our high-density calcium silicate boards can often be customized in terms of dimensions, thicknesses, and even specific shapes to fit your exact needs. This allows for optimal performance and minimal waste during installation, providing a tailored refractory solution.
High-density calcium silicate boards contribute significantly to energy savings through their exceptional thermal insulation properties. By effectively minimizing heat loss from the furnace, they reduce the amount of energy required to maintain the desired molten aluminum temperature. This leads to lower fuel consumption for melting and holding furnaces, resulting in substantial operational cost reductions and improved energy efficiency.
Our NR-80 High-Density Calcium Silicate Board offers a superior balance of mechanical strength, thermal shock resistance, and non-wetting properties specifically optimized for molten aluminum contact. While PYROTEK N17 and CALCAST CC60 are established products, our board often provides comparable or enhanced performance in critical areas like aluminum melt purity and extended lining lifespan, at a competitive calcium silicate board price. We focus on continuous innovation to provide a robust and reliable N17 board alternative that addresses modern aluminum industry challenges.
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