江西耐火材料发热铸造冒口漂珠电厂漂珠批发报价灰白色40目漂珠

江西耐火材料 发热铸造冒口漂珠 电厂漂珠批发报价 灰白色40目漂珠
4、绝缘材料：塑料活化填充剂、高温高压绝缘体等。

5、涂料工业：油漆、油墨，粘合剂、隐身涂料、绝缘漆、防腐漆、地坪漆、耐高温防火漆、内外墙涂料、保温涂料、地板漆、汽车腻子、原子灰等。

6、航天和空间开发：卫星、火箭、飞船表面复合材料，卫星防火层，海洋设备、船舶、深海潜艇等。

7、塑料工业：如汽车饰件、仪表板、家电外壳、风扇、音箱、灯具总承、铸件、齿轮、结构件、拉链、管材、板材等。

8、玻璃钢制品：各种玻璃钢制品、人造大理石、玻璃钢船舶、工艺品等。

9、封装材料：变压器灌封料、电子封装材料等。

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.
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 【漂珠特性】

1、高耐火度：漂珠的主要化学成分为硅、铝的氧化物，其中二氧化硅（SiO2)约为50-65%，三氧化二铝(Al2O3)约为25-35%。因为二氧化硅（SiO2)的溶点高达1725摄氏度，三氧化二铝(Al2O3)的溶点为2050摄氏度，均为高耐火物质。因此，漂珠具有的耐火度，一般达1600-1700摄氏度，使其成为的耐火材料。

2、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(N2、H2及CO2等)，热传导极慢极微。所以漂珠不但质轻(容重250-450kg/m3)，而且保温隔热(导热系数常温0.08-0.1)，这为其在轻质保温隔热材料领域大显身手奠定了基础。

3、硬度大、强度高：由于漂珠是以硅铝氧化物矿物相(石英和莫来石)形成的坚硬玻璃体，硬度可达莫氏6-7级，静压强度高达70-140MPa，真密度2.10-2.20g/cm3，因此，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。他们的短处恰恰是漂珠的长处，所以漂珠就更有竞争优势，用途更广。

4、电绝缘性，不导电：选去磁珠后的漂珠，是性能的绝缘材料，不导电。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，它可以制作是性能的高温条件下的绝缘材料制品。

5、粒度细，比表面积大：漂珠自然形成的粒度为1-250微米。比表面积300-360g/cm2，和水泥差不多。因此，漂珠不需粉磨，可直接使用。细度可满足各种制品的需要，其他轻质保温材料一般粒度ft beads, is the performance of insulation materials, conductive.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 make is performance under the condition of high temperature insulation products.
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drift beads use
1, fire-resistant insulation materials, such as light sintered brick, light unburned brick, casting insulation riser, pipe insulation shell heat preservation and heat insulation, fire insulation paint, paste, composite insulation dry powder, light resistant glass fiber reinforced plastic.
2, building materials, building decoration, high-grade pavement materials, roof waterproof thermal insulation coating, road engineering, modified asphalt, etc.