Base material and composition of photovoltaic ribbon
2022/03/18
Photovoltaic ribbon, used in solar photovoltaic modules. Photovoltaic ribbon (also known as tin-coated tape/tin-coated copper tape/tin-coated solder tape/tin-coated copper tape/interconnect bar/bus tape) has a bright surface, uniform coating, good solderability, high electrical conductivity, and high quality Stable; environmentally friendly tin-coated copper tape has passed SGS testing and certification, in line with EU RoHS standards, copper substrate: tin-coated copper tape substrate: tin-coated copper tape of different thickness and width as the substrate, The requirement is good electrical conductivity and certain strength and toughness.
The coating of the tin-coated copper strip is on the surface of the copper strip, and the tin alloy material is hot-dipped around the copper substrate by a special process. The function of the coating is to firmly weld the copper strip to the main grid of the battery. According to the coating composition, lead-coated tin-coated copper tape, commonly used components are: 63% tin + 37% lead; 60% tin + 40% lead; 62% tin + 36% lead + 2% silver and other lead-free tin-coated copper tape: Commonly used ingredients are: 96.5% tin + 3.5% silver; 96.5% tin + 3.5% silver; 100% can be produced according to the specific requirements of customers. .Package: Cardboard or I-Shaft. 4. Coating thickness: 10-50μ Photovoltaic ribbon tinning machine (standard tin coating machine) Brief description: Photovoltaic ribbon, also known as photovoltaic ribbon tin coating machine, is mainly used to produce solar photovoltaic ribbons.
It is the core equipment of the ribbon production line. The photovoltaic ribbon is an indispensable and very important part of the solar module, so the quality of the equipment is a very important part of the operation of the entire solar power generation system. Machine structure Photovoltaic welding strip is mainly composed of 4 parts: feeding system, flux box, preheating box, tin melting furnace and receiving system. Working principle The copper strip is treated with flux and then preheated at a high temperature of 80 degrees to 100 degrees. , so that the flux can be fully activated to play a role, and then go through the tin melting furnace for tin plating operation, come out of the tin furnace and then cool the surface, and finally receive and package the finished photovoltaic ribbon.
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