论文部分内容阅读
过去所以不能使用热电偶直接测量高温盐炉的盐温,是由于高温盐对热电偶的不锈钢套管的电化学腐蚀太快所致。现在采用了“阴极保护”新技术,可以对热电偶套管进行保护。这就为热电偶直接测量高温盐的温度提供了可能。由于热电偶直接测量的精度比幅射高温计和光学高温计高,能够满足刀具淬火的质
In the past, thermocouples could not be used to directly measure the salt temperature of high-temperature salt furnaces due to the electrochemical corrosion of high-temperature salts on thermocouple stainless steel sleeves. The new “cathodic protection” technology is now available to protect the thermowell. This makes it possible for the thermocouple to directly measure the temperature of the hot salt. Due to the accuracy of the direct measurement of the thermocouple than the radiation pyrometer and optical pyrometer to meet the tool quenching quality