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瓷绝缘子包含钢帽、瓷件、钢脚等部位

网址:www。dianLiwuzi。com。cn  2019-10-17  作者:admin    阅读:

瓷绝缘子包含钢帽、瓷件、钢脚等部位,其中瓷件为承担绝缘的部位,早期瓷绝缘子瓷件原料为硅质瓷,以石英、长石、黏土为原料,形成的瓷成分包含石英、莫来石、气孔和玻璃相。石英成分为SiO2,化学性质稳定,莫来石成分为铝硅酸盐,其耐热性好、导热系数小。通过调节烧结后的石英含量、内部晶相结构,可以提升瓷的机械强度。
Porcelain insulator includes steel cap, porcelain piece, steel foot and other parts, among which porcelain piece is the part bearing the insulation, early porcelain insulator porcelain piece raw material is siliceous porcelain, with quartz, feldspar, clay as the raw material, forming porcelain components including quartz, mullite, pore and glass phase. The composition of quartz is SiO2, and the chemical property is stable. The composition of mullite is aluminosilicate, which has good heat resistance and small thermal conductivity. The mechanical strength of the ceramics can be improved by adjusting the quartz content and internal crystal structure after sintering.
而后出现高铝质瓷,其原料与硅质瓷的差异别在于氧化铝含量更高(加入了工业氧化铝),烧制的高铝质瓷中刚玉(氧化铝)含量可达30%-45%甚至更高,颗粒更均匀,从而获得更高的机械强度和更好的其热稳定、耐电弧性能。
The difference between high alumina ceramics and siliceous ceramics is that alumina content is higher (industrial alumina is added), corundum (alumina) content in fired high alumina ceramics can reach 30% - 45% or even higher, particles are more uniform, so as to obtain higher mechanical strength and better thermal stability and arc resistance.

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