In what scenarios is the photovoltaic strip rolling mill suitable for use

       The photovoltaic welding strip rolling mill is the core equipment for photovoltaic welding strip production, mainly used to process copper alloy billets (such as oxygen free copper and tin plated copper) into flat strips with uniform thickness, smooth surface, and micrometer level dimensional accuracy (i.e. photovoltaic welding strip semi-finished/finished products) through multiple passes of rolling. Its application scenarios strictly match the production needs of photovoltaic welding strips, focusing on the "welding strip manufacturing link of the photovoltaic industry chain", which can be divided into the following categories:

1、 Core application scenario: Professional production enterprise of photovoltaic welding strips

       This is the main usage scenario of photovoltaic welding strip rolling mill, covering welding strip manufacturers of different scales and adapting to diverse production needs:

       The modern production workshops of large-scale photovoltaic ribbon welding enterprises (such as Wuxi Shangde, Suzhou Yubang, Zhejiang Jiaman, etc.) need to be equipped with high-speed, high-precision, and automated photovoltaic ribbon welding rolling mills (mostly continuous rolling lines) to achieve daily production capacity of over tons. In such scenarios, the rolling mill needs to have:

       Multi pass continuous rolling capability (usually 3-5 passes), combined with online thickness detection and automatic correction system, to ensure that the thickness tolerance of the weld strip is controlled within ± 0.005mm (suitable for high-efficiency component requirements such as PERC and TOPCon);

       Linked with subsequent tin/silver plating production lines and winding machines, an integrated production line of "rolling cleaning coating winding" is formed, reducing manual intervention and improving production efficiency.

       Compatible products: Welding tapes for conventional single/polycrystalline components (0.1-0.3mm thick, 1.0-6.0mm wide), ultra-fine welding tapes for high-efficiency components (0.08-0.15mm thick), and irregular welding tapes (triangular welding tapes, round edge welding tapes).

       Small and medium-sized customized production scenarios require flexible and adjustable photovoltaic welding strip rolling mills (such as intermittent rolling mills and multi specification mold adaptation rolling mills) for small and medium-sized welding strip factories or enterprises focused on special welding strip research and development to meet customized order requirements

       Can quickly switch roll specifications and adapt to the production of welding strips with different widths and thicknesses (such as narrow welding strips 0.8mm wide and wide welding strips 8.0mm wide);

       Support small batch trial production (tens of kilograms to hundreds of kilograms per batch), suitable for developing new welding strips (such as low-temperature welding strips, high conductivity welding strips) or undertaking small order processing.

2、 Extended application scenario: Photovoltaic module enterprises build their own welding strip production line

       Top photovoltaic module companies (such as LONGi, JinkoSolar, Tianhe Solar, etc.) will build their own welding strip production workshops to reduce supply chain costs and ensure the stability of welding strip supply. At this time, the photovoltaic welding strip rolling mill, as the core equipment, needs to adapt to the demand for "component production linkage":

Close range supporting scene

       The rolling mill workshop is adjacent to the component assembly workshop, and the produced welding strips are directly transported to the component production line through conveyor belts or turnover boxes, reducing storage and transportation links and lowering the risk of surface oxidation of welding strips (especially silver plated welding strips have high storage environment requirements).

Accurately match component requirements scenarios

       We can customize the size of the welding strip according to the type of battery cells in our own components (such as 182mm and 210mm large-sized battery cells) and the welding process (automatic welding machine adaptation requirements), to avoid the problem of mismatched specifications of purchased welding strips (such as welding strip width not matching the grid line spacing of battery cells, resulting in virtual welding).

3、 Special application scenario: high-end/special photovoltaic ribbon production

       For photovoltaic welding strips with high added value and special performance, a dedicated photovoltaic welding strip rolling mill is required to meet strict processing requirements:

Production scenario of ultra-fine/irregular welding strips for efficient components

       Ultra fine flat strips (thickness ≤ 0.1mm) or irregular welding strips (such as triangular and trapezoidal sections) used in the production of efficient components such as TOPCon and HJT require the rolling mill to have higher precision control (thickness tolerance ± 0.003mm), smoother rolling surface (Ra ≤ 0.1 μ m), avoid scratches and edge burrs on the welding strip surface, and ensure conductivity and adhesion during welding.

Adapt welding tape production scenarios to special environments

       Produce weather resistant welding strips (such as high corrosion resistant tin/nickel plated welding strips) for photovoltaic building integration (BIPV) and offshore photovoltaic power plants. The rolling mill needs to be equipped with anti-oxidation rolling processes (such as nitrogen protection rolling) to avoid surface oxidation of copper strips during the rolling process and ensure the adhesion of subsequent coating layers.

4、 Auxiliary application scenario: Welding strip recycling, reuse and processing

       Photovoltaic industry scrap recycling enterprises will recycle the welding strip waste generated during the production process of photovoltaic modules (such as cutting residues and defective products), and re roll it through photovoltaic welding strip rolling machines (requiring the removal of surface coatings or re melting of castings), processing it into recycled welding strips or copper flat strip raw materials, suitable for low value-added photovoltaic products (such as small distributed modules, photovoltaic toys) or other copper processing fields, to achieve resource recycling.

Key adaptation requirements for scenario use

       Accuracy requirements: For efficient component scenarios, micrometer level thickness control (± 0.003-0.005mm) is required, while for conventional component scenarios, it can be relaxed to ± 0.01mm;

       Material adaptation: When rolling oxygen free copper, the rolling mill needs to have good ductility control. When rolling tin plated copper, it is necessary to avoid coating detachment and use specialized rolling mill materials (such as tungsten carbide rolling mills);

       Capacity matching: Continuous rolling mills (with a capacity of 500-1000kg/day) are required for large-scale production, while intermittent rolling mills (with a capacity of 50-200kg/day) can be used for small-scale production;

       Environmental requirements: The production workshop must be clean and dry (humidity ≤ 60%) to avoid dust affecting the surface quality of the welding strip. High temperature environments must be equipped with a roller cooling system.