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Solutions for Poor Interlayer Bonding in Multi-Layer Materials with Polymer Diffusion Welders
Jul 14,2026
Polymer diffusion welders are widely used to laminate multi-layer copper/aluminum foils, flexible connectors and stacked metal components for new energy and power industries. Interlayer bonding quality directly determines conductivity, structural strength and service life of finished products.
I Optimize Interlayer Pre-Treatment to Eliminate Bonding Defects
1.Fully clean surface of each layer to eliminate residual contaminants between layers.
2.Standardize lamination precision to completely remove interlayer gaps.
3.Control surface roughness to maximize atomic contact efficiency.
II Optimize Welding Parameters for Sufficient Interlayer Diffusion
1.Adjust heating curve to realize uniform heat penetration into all layers.
2.Optimize welding pressure for evenly distributed clamping force.
3.Extend thermal holding time to promote full atomic interdiffusion between layers.
III Optimize Welding Process to Stabilize Interlayer Combination
1.Adopt shielding gas welding to reduce interlayer oxidation.
2.Combine pre-pressing and segmented heating welding.
3.Control cooling speed after welding to reduce interlayer residual stress.
IV Inspect & Maintain Equipment for Stable Welding Performance
1.Calibrate core machine parameters to guarantee high precision.
2.Regularly check the condition of electrodes and fixtures.
3.Maintain heating and thermal insulation systems.
V Strengthen In-Process Inspection & Quality Control
1.Carry out trial welding & testing before mass production.
2.Implement full inspection after welding.
3.Standardize operating procedures and conduct systematic operator training.
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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