In the structural safety of new energy vehicles, the aluminum alloy casing of the power battery pack is figuratively referred to as the “armor” of the internal battery cells. However, in actual production assembly or after-sales maintenance, this armor is often dented or cracked due to bumps and impacts, directly threatening battery safety and airtightness.
As a professional provider of new energy service technology solutions, Guheng Energy is committed to solving industry pain points through advanced testing and repair equipment. Addressing the challenge of repairing aluminum materials, our aluminum repair machine, with its advanced welding technology, provides an efficient “cure” solution for power battery fault repair.
Internal and external damage to the power battery casing
The battery casing not only needs to support the battery modules but also bears the crucial responsibility of impact protection and sealing. Damage to the casing not only compromises structural strength but also poses a more serious risk of airtightness failure. Moisture infiltration or electrolyte leakage can easily trigger short circuits or even fires, leading to severe battery malfunctions. Therefore, precise repair of casing damage is key to extending the cycle life of the equipment and ensuring vehicle safety.
Key challenges in the repair of aluminum materials
Aluminum alloys are much more difficult to repair than traditional steels due to their low melting point, easy oxidation, and high thermal conductivity.
- Differences between different aluminum series: Power battery packs mostly use 3-series to 6-series aluminum alloys, and the hardness and plasticity of different series of materials vary.
- Special material challenges: Silicon and aluminum-magnesium materials are prone to porosity or cracks during welding, and ordinary equipment cannot guarantee the strength of the repaired material.
- Structural strength restoration: The repaired site must withstand high mechanical stress, which places extremely high demands on the precision of the welding pulse.
Guheng Energy Aluminum Repair Machine: A Core Tool for Precision Repair
To address the aforementioned challenges, Guheng Energy’s aluminum repair machine integrates several cutting-edge technologies:
- GYS Intelligent Matching Mode (Collaborative Mode): With built-in microprocessor control, it can automatically detect the presence of studs and intelligently adapt parameters. Whether it is 3-6 series aluminum or silicon-containing or aluminum-magnesium alloy materials, the system can precisely adjust the drawing capacity to ensure that the thickness of the sheet metal for precision components such as water-cooled plates is not damaged.
- 3-millisecond rapid welding technology: With a wide voltage input of 110V – 230V, this device can instantly generate a maximum output current of 7500A. Welding can be completed in just 3 milliseconds. The extremely short discharge time effectively controls the heat-affected zone, prevents thermal deformation of the casing, and protects the internal battery components from high temperatures.
- High-precision control: With a rated power of only 0.65 kW , it can achieve stable operation under an open-circuit voltage of 50-200 V, meeting the high-frequency repair needs of industrial applications.
Performance Remodeling: From Structural Strength to Airtightness Assurance
After repair using the Guheng aluminum repair machine, the structural strength of the shell can be restored to the original factory standard, effectively extending the cycle life of the equipment. However, the repair work does not stop there.
- Air tightness verification: The repaired battery pack must pass a rigorous leak test.
- Common applications of leak detection testing include battery pack assembly lines, after-sales service centers, and accident vehicle inspections. Confirming the absence of any micro-leaks at the repair site using pressure drop testing or tracer gas detection is the ultimate indicator of a successful repair.
Why choose Guheng Energy’s testing and maintenance solutions?
As a manufacturer deeply rooted in the new energy field, Guheng Energy not only provides individual equipment but also offers end-to-end technical solutions covering “testing , diagnosis , repair , and verification.” Our service team provides professional technical support and after-sales assurance to customers through a global network.
Conclusion
Repairing the aluminum alloy casing of power batteries is not only a means of saving costs, but also a commitment to resource recycling and battery safety. Through Guheng Energy’s aluminum repair machine, the originally complex process of aluminum repair becomes standardized and intelligent. We firmly believe that excellent repair techniques and reliable equipment will jointly drive the new energy vehicle industry towards a safer and more sustainable future. Please contact Guheng Energy for more detailed specifications of its aluminum repair machine and power battery maintenance solutions.
FAQ
Q: If the aluminum alloy casing of a power battery is damaged, is it necessary to replace the entire battery pack?
A: Not all damage requires complete replacement. For dents or cracks in the casing that do not damage the internal battery cells, precision repair using Guheng Energy’s aluminum repair machine can significantly reduce maintenance costs and avoid resource waste while ensuring safety.
Q: Does the 3-millisecond welding technology of the aluminum repair machine affect the inside of the battery?
A: The 3-millisecond rapid welding technology used by Guheng Energy has an extremely short working time, and the heat is only applied to the contact surface, which will not cause large-area heat conduction. Therefore, under standard operation, it can effectively protect the safety of the internal battery module.
Q: How can we ensure that the repaired aluminum alloy casing will not leak?
A: An airtight leak test must be performed after the repair is completed. This is typically done using a pressure test or a helium gas spectrometer leak detector to ensure that the repaired battery pack’s sealing rating fully meets industry safety standards.
Q: Can the Guheng aluminum repair machine handle aluminum materials of different types?
A: Yes. This equipment features a GYS intelligent matching mode, supporting 3-6 series aluminum alloys as well as silicon-containing and aluminum-magnesium materials. It can automatically adjust welding parameters according to different materials to achieve high-precision repair.
