Manufacturing method of ultra-soft state photovoltaic welding belt

A photovoltaic ribbon and manufacturing method technology, applied in the field of ribbon manufacturing, can solve the problems of weldability and elongation that are difficult to adapt to the rapid development of photovoltaic modules, high fragmentation rate, and economic losses of photovoltaic module manufacturers. Strong weldability, reduced chipping rate, and improved elongation

Inactive Publication Date: 2010-01-06
无锡市耀普科技有限公司
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Problems solved by technology

[0003] With the continuous development of photovoltaic technology, the parameters of silicon wafers have been greatly improved compared with before, especially in order to increase the power of silicon wafers per unit area. At present, the thickness of silicon wafers is getting thinner and thinner. It is also getting higher and h

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  • Manufacturing method of ultra-soft state photovoltaic welding belt

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[0018] Example: The oxygen-free copper wire is finish-rolled and subjected to continuous tube annealing, the temperature is controlled at 500-550°C, and the speed is 2 m / min; the annealed oxygen-free copper wire is ultrasonically cleaned with water at a temperature of 40- 60℃, frequency is 15~40KHz, speed is 2m / min, the cleaned copper strip is soaked with NCF no-clean environment-friendly flux, and enters the tin furnace for tinning, the temperature is controlled at 200~220℃, the speed is 2 Meters per minute, the welding strip comes out of the tin furnace, is quickly cooled and formed under the action of an automatic speed-regulating induced draft fan, and then is wound by the automatic take-up machine and automatic take-up machine to prepare the finished welding strip.

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Abstract

The invention discloses a manufacturing method of an ultra-soft state photovoltaic welding belt. The method comprises the following steps: oxygen-free copper wires are firstly planished and are annealed in a continuous pipe mode; clear water is then used for carrying out ultrasonic cleaning on the annealed oxygen-free copper wires; copper belts are then soaked by a welding flux and are led to a tin furnace for plating tin, and an automatic speed-regulating draught fan is finally arranged at an outlet of the tin furnace; after coming out from the tin furnace, the copper belts plated with tin firstly pass through the draught fan, and then pass through an automatic capstan and an automatic wire-rewinding machine for hanging, and a finished product of the welding belt is formed. The invention adopts a continuous working procedure so that material loss is reduced, labor capacity is increased, and meanwhile, strong weldability and high conductivity of the welding belt are ensured. Compared with a conventional photovoltaic welding belt manufactured by a traditional method, the tensile stretch is increased by 40%, and the fragmentation rate in the process of welding is greatly reduced.

Description

technical field [0001] The invention relates to a method for manufacturing a welding ribbon, in particular to a method for manufacturing an ultra-soft photovoltaic welding ribbon. Background technique [0002] Ribbon is one of the main auxiliary materials of photovoltaic modules. It plays the role of connecting silicon wafers and conducting electricity on solar panels. Its inherent conductivity, solderability and elongation play a vital role in the quality of photovoltaic modules. . [0003] With the continuous development of photovoltaic technology, the parameters of silicon wafers have been greatly improved compared with before, especially in order to increase the power of silicon wafers per unit area. At present, the thickness of silicon wafers is getting thinner and thinner. It is also getting higher and higher, but the general solderability and elongation of conventional ribbons are difficult to meet the needs of the rapid development of photovoltaic modules, especiall...

Claims

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Application Information

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IPC IPC(8): H01L31/18H01L31/02
CPCY02P70/50
Inventor 黄伟清
Owner 无锡市耀普科技有限公司
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