¥3300
1-19吨
¥3200
20-49吨
¥3100
≥50吨
起订量
≥1吨
总供应
10067吨
所在地
漂珠简介
漂珠具有极高的耐火度,一般达摄氏1600-1700度,使其成为优异的高性能耐火材料。质轻、保温隔热。漂珠壁薄中空,空腔内为半真空,只有极微量的气体,热传导极慢极微。漂珠是一种能浮于水面的粉煤灰空心球,呈灰白色,壁薄中空,重量很轻,容重为720kg/m3(重质),418.8kg/m3(轻质),粒径约0.1毫米,表面封闭而光滑,热导率小,耐火度1610,是优良的保温耐火材料,广泛用于轻质浇注料的生产和石油钻井方面。
漂珠的化学成份以二氧化硅和三氧化二铝为主,具有颗粒细、中空、质轻、高强、耐磨、耐高温、保温绝缘、绝缘阻燃等多种功能,现已广泛应用于耐火材料原料之一。漂珠具有很高的强度。一般轻质多孔或中空材料如珍珠岩、沸岩、硅藻土、海浮石、膨胀蛭石等均是硬度差、强度差,用其制的保温隔热制品或轻质耐火制品,都有强度差的缺点。一般绝缘体的电阻均随温度的升高而降低,漂珠则相反,随温度的升高电阻增大。这一优点是其他绝缘材料都不具备的。所以,它可以制作高温条件下的绝缘制品。
Drift beads have high refractoriness, generally 1600-1600 degrees centigrade, making it a superior quality refractory materials. Qualitative light, heat preservation and heat insulation. Drift beads thin wall hollow, empty cavity for half a vacuum, only trace amounts of gas, heat transfer is very slow. Floating bead is a kind of can float to the surface of fly ash hollow ball, are pale, thin wall hollow, weight is light, unit weight of 720 kg/m3 (heavy), and 418.8 kg/m3 (light), particle size is about 0.1 mm, closed and smooth surface, small thermal conductivity, refractoriness 1610 or higher, is a good insulation refractory material, is widely used in the production of lightweight castable and oil drilling.
Drift beads of the chemical composition is given priority to with silica and 3 oxidation 2 aluminium, with a fine grain, hollow, qualitative light, high strength, wear resistance, high temperature resistant, thermal insulation, insulation, flame retardant and other functions, is now one of widely used in refractory raw materials. The strength of the drift beads has the very high. General light porous or insulating materials such as boiling rocks, diatomite, perlite, sea pumice, expanded vermiculite is the difference in hardness, strength is poor, with its system of thermal insulation products or light refractory products, intensity difference flaws. Insulation resistance are commonly by the rise of temperature, drift beads, on the other hand, increases with the increase of temperature resistance. This advantage is don't have other insulating materials. So, it can be produced under the condition of high temperature insulation products.
漂珠指标