Method of fixing thermocouple wires in metal holes

Thermocouple wire is a sensor that can measure temperature, usually composed of two different metal wires. When using a thermocouple wire to measure temperature, it needs to be fixed on a metal hole. So, how can the thermocouple wire be fixed on the metal hole? Below will introduce two common fixing methods.
1. Welding
Welding is a common method of fixing thermocouple wires. Firstly, drill a hole in the metal hole, and then insert the thermocouple wire into the hole. Next, use welding rods or wires to weld the thermocouple wire to the metal hole. When welding, attention should be paid to controlling the welding temperature and time to avoid thermal damage to the thermocouple wire. After welding is completed, insulation tape or paint can be used to insulate the welding area to protect the thermocouple wire from external interference.
2. Thread fixation
Thread fixation is another commonly used method for fixing thermocouple wires. Firstly, drill a hole in the metal hole that matches the diameter of the thermocouple wire, and drill a thread in the hole. Then, insert the thermocouple wire into the metal hole and tighten the threads together to secure the thermocouple wire onto the metal hole. Screw fixation is suitable for situations with thick metal hole walls, and has the advantages of firm fixation and easy disassembly.
The above are two common methods for fixing thermocouple wires, and the appropriate method can be selected according to the specific situation. During the fixing process, it is necessary to pay attention to maintaining good contact between the thermocouple wire and the metal hole to ensure the accuracy and stability of temperature measurement.
There are various methods to fix thermocouple wires on metal holes, including welding and thread fixation. When choosing a fixed method, factors such as the material and size of the metal hole, as well as the temperature range to be measured, need to be considered. Regardless of the fixing method used, it is necessary to ensure good contact between the thermocouple wire and the metal hole to ensure the accuracy and stability of temperature measurement.