Zhengzhou Rongsheng Refractory Materials Co., Ltd. independently develops spherical ceramic sand refractory particles, refined using a high-purity alumina and silicate composite process. These particles possess excellent thermal stability (withstanding 1800℃), low thermal expansion rate, and strong thermal shock resistance. Their unique spherical structure significantly improves fluidity and filling density, reduces binder usage, enhances mold permeability, and effectively reduces the risk of casting defects such as cracks and porosity. The product complies with ISO9001 quality management system standards and is widely used in precision casting in the steel, non-ferrous metals (aluminum, copper, magnesium alloys), and machinery manufacturing industries. It is an ideal environmentally friendly alternative to chromite sand and zircon sand. Rongsheng provides customized formulations and global technical support services to ensure export customers receive stable and reliable high-quality casting materials.
1. The spherical structure improves flowability and filling efficiency, saving more than 20% of adhesive usage.
2. It has an extreme temperature resistance of up to 1800℃, strong thermal stability, and is suitable for high-temperature casting processes.
3. Low expansion rate and high permeability significantly reduce casting defects and improve yield.
4. It can replace imported zircon sand and ferrochrome sand, offering high cost-effectiveness and environmental compliance.
5. Supports customization of particle size and chemical composition according to customer needs to meet the requirements of different metal casting.
Suitable for high-temperature metal casting industries such as steel, aluminum alloys, copper alloys, and magnesium alloys, especially suitable for applications requiring high precision and surface quality, such as automotive parts, mechanical components, and aerospace castings. Target customers include domestic and international foundries, mold manufacturers, industrial material traders, and engineering contractors, covering international markets in Europe, America, Southeast Asia, and the Middle East.
