一、概述我厂高速钢淬火用的高温盐浴炉。过去是依靠光学高温计、辐射高温计、结合观察试棒断口及操作者的经验来控制温度的。由于光学、辐射高温计测温时受环境条件影响比较大,本身精度也低,特别是工件投入炉膛时,遮住了镜头,无法进行测量,因此测温往往会超差±20℃,导致工件过热或加热不足,使金相组织和硬度不稳定,质量波动很大,影响了使用寿命。在党的“十大”精神鼓舞下,经过批林 First, an overview of our high-speed steel quenching high-temperature salt bath furnace. The past is to rely on optical pyrometer, radiation pyrometer, combined with the observation rod fracture and the operator’s experience to control the temperature. Due to optical and radiation pyrometer temperature is relatively affected by environmental conditions, their accuracy is low, especially when the workpiece into the furnace, cover the lens, can not be measured, so the temperature will often exceed ± 20 ℃, resulting in the workpiece Insufficient heating or heating, the microstructure and hardness instability, quality fluctuations, affecting the service life. Inspired by the “top ten” spirit of the party, we have approved Lin