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Fix Over-Burning or Insufficient Bond Strength Caused by Inaccurate Temperature Control of Polymer Diffusion Welders
Jul 18,2026
Precise temperature control is the core of polymer diffusion welding, directly deciding joint quality. In production, inaccurate temperature regulation leads to two major failures:
1.Over-burning: Excess temperature coarsens grain structure, accelerates oxidation, generates cracks and ablation, making joints brittle and easy to fracture.
2.Insufficient bonding strength: Low temperature restricts atomic diffusion, resulting in incomplete penetration and cold joints.
I Root Causes
1.Malfunction or measurement deviation of temperature control system
2.Abnormal heating components
3.Inadequate daily equipment maintenance
4.Mismatch between operation and process parameters
II Targeted Solutions
1 Fix Over-Burning Defects
1.Calibrate temperature controller to correct measurement & signal offset.
2.Lower welding temperature properly via parameter adjustment.
3.Repair heating system to eliminate local hot spots.
4.Evaluate over-burnt workpieces and formulate disposal plans to reduce scrap loss.
2 Fix Insufficient Bond Strength
1.Troubleshoot temperature system to ensure accurate detection & output.
2.Raise welding temperature and optimize holding duration.
3.Improve heating & thermal insulation to minimize heat loss.
4.Implement rework welding and strength testing to meet standards.
III Universal Preventive Measures
1.Periodically calibrate temperature, pressure and heating core components.
2.Standardize daily maintenance, replace aging parts promptly.
3.Unify operation specifications and carry out regular technician training.
4.Match machine power and heating schemes according to workpiece dimensions.
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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