Li Gong, the production director of a leading enterprise in new energy vehicles, once suffered from great headaches regarding the quality control of battery pack welding: "The alloy composition of our battery pack welding points needs to be 100% inspected online. Traditional detection equipment has cumbersome sampling procedures and slow response, and a single batch of testing takes 2 hours. Moreover, the accuracy is insufficient, unable to identify minor component deviations, resulting in a welding defect rate of up to 0.5%, with annual losses exceeding 10 million yuan. At the same time, the equipment cannot be seamlessly integrated with the production line and is difficult to achieve real-time control. It can only be reworked after the fact, seriously affecting production capacity."
The implementation of the industrial-grade fiber optic spectrometer from Saifan has completely changed the quality control landscape. This equipment adopts a modular design and high-speed signal acquisition technology, with a response speed as fast as millisecond level. The single-sample detection time is ≤ 1 second, enabling 100% online real-time detection of the production line, without the need for machine downtime for sampling, significantly improving the detection efficiency. The spectral resolution reaches 0.3 nm, capable of accurately identifying minor deviations in the alloy composition of the welding points, controlling the defect rate below 0.03%, and avoiding quality risks at the source. The equipment supports multiple interface connections such as TCP/IP and USB, and can be seamlessly integrated with the production line data system to provide real-time feedback on the test results, facilitating rapid adjustment of process parameters and achieving "testing - regulation" closed-loop management.
"After introducing the Sevan optical fiber spectrometer, our welding inspection efficiency has increased by 120 times, the defect rate has dropped by 94%, and we have saved over 8 million yuan in annual losses!" Engineer Li said frankly. "The equipment is small in size and can be flexibly installed at any position on the production line. It can adapt to complex environments such as high temperatures and vibrations in industrial sites. The maintenance is simple, the optical fiber can be replaced, the detector has a lifespan of up to 50,000 hours, and the annual maintenance cost has been reduced by 80%. Compared with imported equipment, the Sevan products have a higher cost performance, with a cost reduction of 40%, and the delivery cycle is short, with the installation and debugging completed within 45 days, completely breaking the technical monopoly and price barriers of imported equipment."
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