In the process of measuring the temperature of metal metallurgical solutions, we need to pay attention to the following aspects

1. Choose a suitable fast thermocouple based on the temperature, for example, if the normal temperature is around 1800 ℃, you need to choose a B-type or W-type fast thermocouple. If it is 1600 ℃, you can choose an R-type or S-type;

2. When measuring the temperature of a metal solution, it is necessary to grasp the time rhythm. Normally, a fast thermocouple can be inserted into the solution for 3-5 seconds to measure the temperature. At this time, it needs to be removed in a timely manner, otherwise it is easy to burn out the temperature measuring rod and copper head;

3. The depth of insertion into the solution should also be carefully controlled. The normal insertion depth is half the length of the fast thermocouple. If the total length exceeds 1000mm, it is recommended to insert at a depth between 400-500mm;

4. After successfully measuring and removing the temperature measuring rod, it is necessary to cool it down and replace the quick thermocouple to avoid burns;