1. Overheating Detection Methods
1. Temperature Sensing Method
Lightly touch the welding machine casing with the back of your hand. If it's twice as hot as a phone during fast charging (approximately 60°C), be alert.
If the surface temperature of copper components (such as the electrode tip) exceeds 70°C, shut down immediately.
2. Abnormal Equipment Performance
The welding machine casing exhibits discoloration (e.g., from black to grayish-white) or abnormal expansion and deformation.
Continuous heat after 10 minutes of no-load operation (normally, it should remain below 50°C).
3. Professional Testing Tools
Use an infrared thermometer to scan the heat dissipation vents (weekly testing recommended, with a warning level of 45°C).
Measure the cooling water temperature with a contact thermometer (normal range: 20-40°C). II. Overheating Emergency Response
1. Immediate Actions
Press and hold the emergency stop button to turn off the power. Maintain a safe distance of 2 meters and allow the device to cool naturally for 30 minutes.
Do not use water to cool the device or wrap it with a wet cloth (this may cause a short circuit).
2. Troubleshooting
Check the cooling system: Maintain a water pressure of 0.2-0.4 MPa and a flow rate of ≥5 L/min. Clean any debris from the ventilation openings and install a cooling fan if necessary.
III. Preventive Maintenance
Clean the electrode chuck every 50 hours and polish copper parts to a metallic sheen.
Avoid overloading (recommended current ≤ 140A for a 160A welding machine).
Regularly check cable connectors for oxidation and replace electrode tips that are worn more than 20%.
