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Four-Column Frame: Upgrade Power Aluminum Flexible Connector Welding
Jul 30,2026
Aluminum flexible connectors are key shock-absorbing, displacement-compensating and high-current conductive parts for high-voltage power transmission, smart grids, energy storage power stations and complete electrical equipment, widely used in transformers, switchgears and energy storage cabinets. Conventional two-column diffusion welders have insufficient frame rigidity and uneven pressing force, leading to pressure offset, inconsistent fusion, virtual joints, unstable resistance and workpiece deformation. Long-term high-voltage operation and vibration cause overheating, delamination and fracture risks. Haifei four-column aluminum diffusion welder adopts symmetric four-column load-bearing guide frame with constant-temperature molecular diffusion technology for dense multi-layer aluminum foil bonding.
I Customer Background & Pain Points
The customer manufactures power-grade aluminum flexible connectors, aluminum foil expansion joints and high-voltage conductive assemblies for power grids, energy storage and transformers.
Original Equipment Defects
1.Conventional two-column frames have weak guidance and low rigidity. Press plates shift and tilt, causing uneven stress, warpage, twisting and inconsistent thickness on finished products.
2.Low pressing precision fails to fully compact multi-layer foil, leaving micro gaps and oxide interlayers. Narrow conductive cross-section leads to fluctuating resistance and excessive temperature rise under high voltage & large current.
3.Limited temperature accuracy causes inconsistent fusion between workpiece center and edges.
4.Poor structural stability triggers mechanical wear and precision drift after long continuous operation.
5.Heavy manual dependence, hard to control forming precision; no parameter traceability.
II Customer Requirements
1.Adopt symmetric four-column load-bearing guide frame to boost frame rigidity and pressing precision, ensure vertical, even compression across the whole workpiece and reduce tilting & deformation.
2.Apply molecular diffusion welding to eliminate aluminum surface oxidation, improve interlayer compactness, reduce gaps & interlayers, stabilize resistance for low-temperature-rise high-voltage heavy-current operation.
3.Optimize constant-temperature pressure-holding process to reduce virtual joints and incomplete fusion.
4.Maintain stable temperature & pressure parameters during long-time production.
5.Support switching between various power aluminum connectors with storable, traceable process parameters.
III Custom R&D Solutions
1.Process Verification: Test diffusion welding on connectors of different layers, thicknesses and widths. Optimize pressing force, vertical precision, constant temperature and cooling holding time according to power industry standards.
2.Equipment Selection: Four-column dedicated aluminum diffusion welder specially for power products to solve pressure offset and uneven stress issues of two-column machines.
3.Fixture Design: Custom full-contact balanced pressing jigs with accurate limit structures to compact multi-layer foil and uniformize fusion.
4.Core Advantages
Flat forming: Even pressing, minimal deformation
Stable conduction: Dense fusion, low temperature rise
Reliable & versatile: Stable quality, wide application range
IV Delivery, After-sales & Customer Feedback
Pre-acceptance and uninterrupted operation test achieved stable welding yield. All previous production difficulties were resolved after commissioning. The customer appreciated our timely and professional after-sales support.
V Haifei’s Mission: Meet Customized Customer Demands
Haifei adheres to the philosophy of "Creating Value for Customers". We develop customized equipment according to your welding requirements, whether you need automatic, integrated or whole-line solutions. We uphold the aspiration of "Striving for the Rise of Chinese Industry" and corporate values of Gratitude, Progress, Altruism and Win-win Cooperation, contributing to intelligent equipment manufacturing in China.
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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