What are the outstanding advantages of photovoltaic welding strip rolling mill compared to ordinary rolling mill

      Compared with ordinary rolling mills, the core advantages of photovoltaic welding strip rolling mills are reflected in stricter precision control, optimized process adaptation for photovoltaic welding strip processing, higher production efficiency and intelligence level. They are designed specifically for the micro level processing needs of photovoltaic welding strips, and can effectively meet the high requirements of photovoltaic module welding strip size consistency and conductivity performance

1、 The precision control capability far exceeds that of ordinary rolling mills

Dimensional accuracy reaches micrometer level

      The cross-sectional size deviation of the photovoltaic welding strip rolling mill can be controlled within ± 0.005mm, and the surface flatness requirement Ra is ≤ 0.1 μ m. However, the batch deviation of ordinary rolling mills usually exceeds 0.03mm, which cannot meet the processing standards of photovoltaic welding strips. This high precision can avoid the decrease in photovoltaic module power generation efficiency caused by solder strip deviation (a solder strip deviation of 10 μ m can reduce power generation efficiency by 0.5%).

The roller system has stronger stability

      Adopting servo motor closed-loop control (response time ≤ 0.01s) and roller system runout ≤ 0.002mm, it can ensure that the size of the welded strip is always consistent during high-speed rolling process; However, ordinary rolling mills rely heavily on manual adjustment and are susceptible to operational errors and equipment vibrations, resulting in poor dimensional stability.

2、 Process optimization for photovoltaic ribbon processing adaptation

Integrated specialized auxiliary functions

      Equipped with intelligent temperature control module, real-time monitoring of rolling temperature (error ± 2 ℃), to avoid accuracy deviation caused by thermal deformation of the welding strip; Some models also integrate a cleaning mechanism before rolling, which removes impurities on the surface of the copper strip through a cleaning brush to prevent impurities from affecting rolling accuracy and product surface quality. This is a special design that ordinary rolling mills do not have.

Adopting green rolling technology

      The application of waterless rolling technology reduces 90% of wastewater discharge, which not only meets the environmental requirements of the photovoltaic industry, but also avoids the problems of surface oxidation of welding strips and high wastewater treatment costs caused by wet rolling of ordinary rolling mills.

3、 Higher production efficiency and intelligence level

High speed rolling adapted to mass production needs

      The rolling speed of photovoltaic welding strip rolling mill can reach over 200m/min, and some high-speed models can even reach 250m/min, with production efficiency increased by more than 40% compared to ordinary rolling mills; However, ordinary rolling mills are limited by precision and stability, and the rolling speed is usually lower than 100m/min.

Replacement and operation are more efficient

      The changeover time of ordinary rolling mills exceeds 30 minutes per time, and the service life of core components is relatively short; The photovoltaic welding strip rolling mill has optimized the changeover design for multi specification welding strip processing, greatly improving the changeover efficiency. At the same time, the core component life has reached 8000 hours, which is twice that of traditional equipment, and the operation and maintenance cost has been reduced by 40%.

Intelligent control system

       Integrated automation monitoring and feedback system, which can adjust rolling parameters in real time and achieve unmanned continuous production; However, ordinary rolling mills are mostly semi-automatic controlled, requiring frequent manual inspections and adjustments, which can easily lead to production interruptions and quality problems.

4、 Material processing characteristics suitable for photovoltaic ribbon

       The photovoltaic strip rolling mill can achieve a 50% reduction rate based on the material characteristics of copper strips, meeting the rolling requirements of copper strips with a thickness of 0.1-0.5mm, and the conductivity of the rolled strip is not damaged; Improper control of the reduction rate and rolling force of ordinary rolling mills can easily lead to deformation of the internal structure of metal materials, affecting the conductivity efficiency of welded strips.