Slag wool is an inorganic fiber made from industrial slag such as blast furnace slag, phosphorus slag and fly ash through remelting and fibrosis. After processing, these fibers can be made into various products such as board, pipe, felt, tape and paper. They should be used for thermal insulation, fire prevention, sound absorption and shock resistance of buildings and industrial equipment, pipelines and kilns.
Rock wool, also known as rock stone wool, is a kind of mineral wool. Fluffy short fine fiber made of natural rock, mineral or industrial waste residue.In the 1970s, it was widely used in metallurgy, machinery, building materials, petroleum and chemical industries.Raw materials such as natural rock and ore are melted in cupola or other tank kilns (temperature below 2000c), and then blown and quenched into fibrous shape under the pressure of 50 atmospheres. Or use the spinning method to drop the molten liquid flow on the multistage rotary rotor and throw it into fibers by centrifugal force. The diameter is generally 3-9 microns, the bulk density is 50-200 kg / m ^ 3, the thermal conductivity is 0.029-0.046 w / m ^ 3 at room temperature, and 0.111-0.145 w / m ^ 3 below 500C. It is non combustible, moldy and moth free.According to the service temperature, ordinary rock wool (less than 900C) and high-temperature rock wool (more than 900 ℃). High quality rock wool can withstand 1250-1400c high temperature. Rock wool and mineral wool can be made into strips, belts, ropes, felts, blankets, mats, tubes and plates.
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