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WJ84417特殊隔热粒料——《耐火物》,1983,Vol34,No 11,29～32,〈日文〉 近几年来鉴于节能的需要,发展高级耐火隔热材料,提高工业炉的热效率的愿望十分强烈。 本文着重介绍了特殊隔热粒料——氧化铝空心球的制作方法、性质及其应用。氧化铝空心球是人工制造的一种多孔质粒料,可用来制作导热系数小并具有一定强度的耐火隔热材料。其制造方法是将原料放入电弧炉内熔化,熔融后用压缩空气或高压蒸气喷吹成粗粒,然
WJ84417 Special Thermal Insulation Pellets - “Refractory”, 1983, Vol34, No 11, 29 ~ 32, In view of the need of energy saving in recent years, there is a strong desire to develop advanced refractory and thermal insulation materials to improve the thermal efficiency of industrial furnaces. strong. This article focuses on the production method, properties and applications of special insulating pellets - alumina hollow spheres. Alumina hollow ball is a kind of artificial made porous material, which can be used to make refractory and heat insulation materials with small thermal conductivity and certain strength. The manufacturing method is that the raw materials are put into an electric arc furnace and melted, and then melted and compressed into coarse particles by compressed air or high-pressure steam