Brief expansion glass beads is an inorganic glassy mineral materials, through multi-level silicon carbide electric heating tube production technology processing, irregular spherical particles inside a porous cavity structure, glassy surface of the closure, shiny smooth, stable physical and chemical properties, with light, thermal insulation, fire resistance, high temperature, anti-aging, small water absorption and other outstanding features, can replace ash floating beads, glass beads, perlite, polystyrene particles, and many other Traditional lightweight aggregate applications in different products in the. Is an environmentally friendly high-performance new inorganic lightweight insulating material. Chemical composition: about Silica SiO2 68-74% Al2O3 12% alumina, iron oxide Fe2O3 0.5-3.6% calcium oxide, magnesium oxide MgO 0.3% CaO 0.7-1.0% potassium oxide K2O 2-3% sodium oxide Na2O 4-5% Water H2O 2.3-6.4% Physical properties: size (mm): 0.5-1.5 density (kg / m3): 80-350 balling rate: 80-95% of the surface of vitrified rate: ≥95% thermal conductivity (w / mk) : 0.0284-0.05 water absorption (measured% vacuum filtration method): 20% -50%, the strength of the cylinder pressure (pressure in the volume loss rate 1Mpa%): 38% -46% Refractoriness: 1208-1360 ℃ temperature: 800 ℃ application can replace ash floating beads, glass beads, perlite, polystyrene particles, and many other traditional lightweight aggregate, used in industry, agriculture, chemical industry, metallurgy, building materials and many other areas. Scope 1. for reinforced concrete, interior and exterior insulation aerated concrete block, brick, sand-lime brick wall. 2. The roof insulation. 3. The energy-saving old buildings. 4. basement, garage, fire exits, granary, stairwells, factories and other fire insulation works. The factory provides a variety of uses zeolite powder, bentonite, lithium bentonite, sodium bentonite, perlite gardening, air separation plant with perlite, do washing powder with a pearlescent sand, perlite filter aids, perlite insulation board, construction with glass beads, perlite Cleaner, opening perlite, obturator perlite, expanded perlite and other non-metallic mineral products, according to customer request production of various indicators of perlite products.