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Reactive α-Al₂O₃ Micropowder produced by Kaifeng Gaoda Refractories Co., Ltd. is made by first calcining first-grad industrial alumina and aluminium hydroxide into reactive α-Al₂O₃ with addition of special additives and adoption of low-temperature phase conversion technology, and then adopting advanced grinding technology and process.
Fused Calcium Aluminate Series Cement
The Fused Calcium Aluminate Series Cement produced by Kaifeng Gaoda Refractories Co., Ltd. is made by melting high-purity raw materials with design formulations in high-temperature electric arc furnaces.
Fused Alumina-Magnesia Spinel produced by Kaifeng Gaoda Refractories Co., Ltd. is a refractory raw material made by smelting high-purity magnesia and calcined alumina as raw materials in high-temperature electric arc furnaces.
Alumina Hollow Spheres produced by Kaifeng Gaoda Refractories Co., Ltd. are hollow spherical thermal insulation materials made through fused process. It is characterized by light weight, closed pores and excellent high temperature resistance.
White Fused Alumina produced by Kaifeng Gaoda Refractories Co., Ltd. is produced by fusing industrial alumina in an electric arc furnace at high temperature as raw material at high temperatures in electric arc furnaces. This product possesses excellent characteristics including high purity, white color, low porosity, low magnetic material content and high bulk density.
High-Purity Fused Mullite produced by Kaifeng Gaoda Refractories Co., Ltd. is made by smelting high-purity quartz sand and industrial alumina in electric arc furnaces. High-Purity Fused Mullite lumps are light gray with acicular crystal structure.
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