Lanzhou City, Gansu Province, vermiculite vermiculite wholesale nursery

Lanzhou City, Gansu Province, vermiculite vermiculite wholesale nursery, Tatsuya vermiculite fast delivery, low prices, large production to ensure credibility, provide free samples. Mobile: 18032023929 QQ: 805221314 Manager Fan vermiculite at 800-1000 ℃ calcined 0.5-1min, volume can be increased rapidly 6-150 times, up to 30 times the color turns golden yellow or silver, produce a texture. loose vermiculite. Vermiculite has heat insulation, sound insulation frost and good performance, bulk density 80-200kg / m3, thermal conductivity 0.047-0.081w / (m? k), refractoriness 1300- 1350 ℃, when 512hz frequency sound absorption coefficient of 0.53-0.63, at a relative humidity of 95% -100% environmental, 24h moisture absorption rate of 1.1% in water for 1h, the quality of water absorption of 265%, the volume of water absorption 40.6%. Firing point 1370-1400 ℃, tasteless, non-toxic, non-perishable, anti-bacterial, but not acid, the dielectric properties are relatively poor Specifications:. 8-12mm, 4-8mm, 2-4mm, 1-2mm, 0.3 -1mm, 40-60 mesh, 60-80 mesh, 80-100 mesh, 100 mesh, 150 mesh, 200 mesh, 325 mesh and other specifications can be produced on request. Vermiculite is a layered structure, the interlayer crystal water, swelling in 5-25 times, small thermal conductivity, bulk density 50-200kg / m3, is good insulation. Good quality vermiculite, maximum temperature up 1100 ℃. In addition, expanded vermiculite has good electrical insulation properties. Vermiculite purposes: insulation, fireproofing materials, nursery, flowers, trees, friction materials, sealing materials, electrical insulating materials, paint, lumber, paint, rubber, refractories, water softener, metallurgy, construction, shipbuilding, chemical in areas such as vermiculite formula mg x (h 2 o) {mg 3-x [alsio 3 o 10] (oh) 2}, is a magnesium aluminum silicate secondary water metamorphic minerals, like mica shape , usually by black (K) mica by hydrothermal alteration or weathering, because the heat loss was inflated deflection shape, shape resembles leech, it said vermiculite. Vermiculite chemical formula (mg, ca) 0.7 (mg, fe, al) 6.0 [(al, si) 8.0] (oh4.8h2o) stage divided by vermiculite vermiculite ore and vermiculite expansion, by color It can be divided into golden vermiculite, silvery white vermiculite, white vermiculite. Vermiculite ore roasting at high temperatures the rapid expansion of its volume can be 8-20 times the proportion of the expanded 130-180kg / m3, with strong thermal insulation properties. Vermiculite uses: The main purpose of building applications in the field of lightweight material lightweight concrete aggregate, lightweight wall powder, light mortar fire resistant material wall materials, fire board, fire mortar, brick insulation, heat insulation, sound-absorbing materials underground pipes, greenhouse pipe insulation materials, indoor and tunnels built in public places covering the walls and ceiling of metallurgical steel timber, iron, steel casting impurity rise building cladding materials, vermiculite bulk agriculture, forestry, fishing and garden garden golf course turf, seed preservative, soil conditioners, humectants, plant production, feed additives and other marine fishery bait other sorbent, filter aid, fertilizer active carrier, sewage treatment, water absorption oil, cigarettes filter, explosive density modifiers vermiculite chemical composition (%) sio2 al2 o3 fe2o3 mgo h2o 37-43 9-17 5-24 11-23 0.5-9