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一、前言高、中温热处理中性盐浴(熔融态碱金属和碱土金属氯化盐)是广泛用于金属件热处理的一种加热介质。碱金属和碱土金属氯化盐因具有较高的熔点和沸点,热蒸发损失较小;有良好的热稳定性;并由于是离子型晶体,熔融时以离子状态存在,因此有很高的导电能力和热交换性能。这些可贵的物理化学性质,是这类金属氯化盐得以广泛采用的主要原因。根据近代液体理论,熔盐因有能量分布
I. INTRODUCTION High and medium temperature heat treatment Neutral salt baths (molten alkali and alkaline earth chlorides) are a type of heating medium widely used in the heat treatment of metal parts. Alkali metal and alkaline earth metal chlorides have low thermal evaporation losses because of their higher melting and boiling points, good thermal stability, and because they are ionic crystals that ionize when melted and therefore have high electrical conductivity Capability and heat exchange performance. These valuable physicochemical properties are the main reasons why such metal chlorides are widely used. According to modern liquid theory, molten salt due to energy distribution