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用不锈钢外壳,反射屏和金属加热元件的真空炉作为实验设备的优越性是无可争议的。然而,真空炉作为一种精密的可控气氛炉,用什么材料制造一台好的炉子,在真空炉领域中存在着很多不同的见解。在理论家和着重成本的实际使用者之间意见有很大的分歧。本文将评述各种观点。最好用什么材料做壳体? 真空理论家竭力推荐用抛过光的不锈钢内壳.同时全部真空焊缝均经过抛光。理论根据是:表面光洁度愈高,凝结水蒸汽的表面积愈少。理论家们知道:除了开始加热工
The superiority of vacuum furnaces with stainless steel housings, reflective screens and metallic heating elements as experimental equipment is indisputable. However, the use of a vacuum furnace as a precision controlled atmosphere furnace and the use of materials to make a good furnace have many different insights in the field of vacuum furnaces. There is a great deal of disagreement between theorists and the cost-conscious users. This article reviews various points of view. It is best to use what material as the shell? Vacuum theorists are strongly recommended to use polished stainless steel inner shell, while all the vacuum welds are polished. The rationale is that the higher the surface finish, the less the surface area of the condensed water vapor. Theorists know: except to start the heatman