在熱處理時加熱器上必須鋪設(shè)保溫層，否則會出現(xiàn)因熱量大量散失而溫度上不去的現(xiàn)象。保溫材料我們提倡采用硅酸鋁纖維針刺毯保溫層厚度取50-80毫米、寬度根據(jù)加熱器寬度而定。一般為加熱器寬度的一倍左右。

During heat treatment, the heater must be laid with a thermal insulation layer, otherwise the temperature will not rise due to a large amount of heat loss. We advocate the use of aluminum silicate fiber needle punched blanket as the insulation material. The thickness of the insulation layer is 50-80mm, and the width depends on the width of the heater. It is generally about twice the width of the heater.