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Drift beads characteristics
1, high refractoriness, the main chemical compositions for silicon drift beads, aluminum oxide, silica (SiO2) about 50-65%, 3 oxidation 2 aluminium (Al2O3) about 25-35%.Because the melting point of silica (SiO2) is as high as 1725 degrees Celsius, 3 oxidation 2 aluminium (Al2O3), the melting point of 2050 degrees Celsius, are all high refractory material.Therefore, drift beads have high refractoriness, generally 1600-1600 degrees Celsius, make its excellent high performance refractories.
2, light, heat preservation and heat insulation: drift beads thin wall hollow, empty cavity for half a vacuum, only trace amounts of the gas (N2 and H2 and CO2, etc.), heat transfer is very slow.So drift beads not only light (250-450 kg/m3 density), excellent heat preservation and heat insulation and thermal conductivity at room temperature (0.08-0.1), which play a prominent role in the field of lightweight thermal insulation material for its laid a solid foundation.化工填料是填料塔中氣液接觸的通常零件，在非常多行業(yè)都采取普通，具備好的的耐熱耐酸效果，能耐除氫氟酸以外的各樣無機酸、有機酸及有機溶劑的腐化，可在各種高，低局勢采用，其效果的效果是決定填料塔操縱效果的主要緣由。

填料的種類（1）無機填料和有機填料①無機類填料無機類填料主要以天然礦物為原料經(jīng)過開采、加工打造的顆粒狀填料，少數(shù)填料是經(jīng)過處置打造的。a.氧化硅及硅酸鹽。b.碳酸鹽及碳化物。

c.硫酸鹽及硫化物。d.鈦酸鹽。e.氧化物及氫氧化物。f.金屬類。②有機類填料有機類填料由這個天然的動植物及人工合成的有機選材（如再生纖維素、合成樹脂等）打造的。（2）惰性填料及活性填料①惰性填料是將天然礦石用濕磨研磨后烘干或干磨成粉直接采用。②活性填料采用偶聯(lián)劑表面處理使填料表面有被覆層或天然礦物經(jīng)過煅燒亦或兼有2種訣竅。
3, high hardness, high strength: because of drift beads on silicon aluminum oxide mineral phases (quartz and mullite) formation of hard vitreous, hardness of Morse 6-7, hydrostatic strength up to 70-140 mpa, true density of 2.10 2.20 g/cm3, therefore, drift beads with high strength.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

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