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Common Heating System Faults & Troubleshooting Methods for Polymer Diffusion Welders
Jul 22,2026
The heating system is the core component of polymer diffusion welders. It provides stable, uniform heat to realize sufficient atomic diffusion. Its running stability directly determines welding quality, production efficiency and equipment service life.
I Common Faults & Step-by-Step Troubleshooting
1.No heating / no response: Inspect external power supply, circuit wiring and heating modules in sequence to quickly locate faults.
2.Out-of-control temperature: Check temperature controllers, temperature sensors, power supply and heating modules one by one to fix abnormal parameters or damaged parts timely.
3.Uneven heating: Inspect heating modules, graphite components, fitting condition of workpieces and fixtures; standardize workpiece pre-treatment to guarantee tight contact of welding surfaces.
4.Frequent alarms & failure to start: Judge fault categories via alarm codes, then inspect temperature sensors, power circuits, controllers and heating modules. Prioritize short circuit and grounding faults.
5.Abnormal temperature reading: Troubleshoot temperature sensors, controllers, environmental interference and heating modules in order.
II Quick Troubleshooting Cheat Sheet
1.No heat: Power supply, wiring, heating modules, sensors
2.Temperature runaway: Controller calibration & parameters, sensors, power supply
3.Uneven heating: Heating modules, electrodes, workpiece fitting, fixtures
4.Frequent alarms: Read alarm codes, check sensors & power circuits
5.Short service life of modules: Power circuit, cooling system, operation standards
III Daily Prevention & Maintenance Points
1.Calibrate temperature controllers and temperature sensors regularly; inspect heating modules to discover abnormalities early.
2.Clean dust and dirt on heating modules and graphite electrodes regularly; inspect circuits, cooling systems and wearing parts, fasten loose connectors.
3.Set parameters strictly per operation manual; avoid overload and frequent startup/shutdown. Inspect heating system before welding and shut down for troubleshooting once anomalies appear.
4.Place equipment in dry, ventilated area free of strong electromagnetic interference; clear surrounding sundries to guarantee good heat dissipation, prevent faults caused by dust and humidity.
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Wuxi HAIFEI Intelligent Equipment Co., Ltd.
Wuxi HAIFEI Welding Equipment Co., Ltd.
Add: 28 Shuiyun Road, Yuecheng, Jiangyin, Jiangsu Province, China. (Postal Code: 214404)
Mobile: +86 18915302352
Email: wushijie@jshaifei.com