Method for fixing thermocouple wire in metal hole

Thermocouple wire is a sensor that can measure temperature, usually composed of two different metal wires. When using thermocouple wire to measure temperature, it needs to be fixed to the metal hole. So, how to fix the thermocouple wire to the metal hole? The following will introduce two common fixing methods.

1. Welding
Welding is a common method for fixing thermocouple wire. First, punch a hole in the metal hole and then insert the thermocouple wire into the hole. Next, weld the thermocouple wire to the metal hole with a welding rod or welding wire. When welding, you need to pay attention to controlling the welding temperature and time to prevent the thermocouple wire from thermal damage. After welding, you can insulate the weld with insulating tape or insulating paint to protect the thermocouple wire from external interference.

2. Threaded fixing
Threaded fixing is another common method for fixing thermocouple wire. First, 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 fix the thermocouple wire to the metal hole. Threaded fixing is suitable for situations where the metal hole wall is thicker, and has the advantages of firm fixing and easy disassembly.

The above are two common methods for fixing thermocouple wires. You can choose the appropriate method according to the specific situation when using them. 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 many methods to fix the thermocouple wire on the metal hole, including welding and threaded fixing. When choosing a fixing method, factors such as the material and size of the metal hole and 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.