Interconnecting bar for solar photovoltaic modules
A solar photovoltaic and interconnecting strip technology, applied in electrical components, semiconductor devices, welding media, etc., can solve the problems of high residue on the welding surface, improper selection of flux, burnout of operators, etc., to isolate air oxidation and reduce production. Steps to reduce the effect of improper selection
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Embodiment 1
[0016] Embodiment 1: a kind of interconnection bar used in solar photovoltaic modules, comprising a base material and a welding material layer coated on the outer surface of the base material, characterized in that the outer surface of the interconnection bar welding material layer is also coated with a flux layer, said The composition and weight parts of the flux are: 5-6 parts of rosin, 1-1.5 parts of turpentine, 68-70 parts of absolute alcohol, 0.2-0.3 parts of triethanolamine, and 0.2-0.4 parts of cetyltrimethylammonium bromide , 0.05-0.1 parts of succinic acid, 0.1-0.15 parts of sodium palmitate, and 0.01-0.02 parts of benzotriazole.
[0017] The production method of the interconnection strip comprises the following steps:
[0018] (1) Manufacture of base material: rolling oxygen-free copper round wire into a base material with a width of 0.8-2 mm;
[0019] (2) Welding material coating: spray the liquid welding material onto the surface of the substrate with a spray gun,...
Embodiment 2
[0025] Embodiment 2: with embodiment 1, just soldering material is Ag-Sn-Pb soldering material, and the composition of described soldering flux and weight part are adjusted to: 5-6 parts of rosin, 1-2 parts of turpentine, 65-5 parts of dehydrated alcohol 70 parts, 0.2-0.4 parts of triethanolamine, 0.2-0.5 parts of cetyltrimethylammonium bromide, 0.05-0.1 parts of succinic acid, 0.1-0.2 parts of sodium palmitate, 0.01-0.02 parts of benzotriazole share.
[0026]
Embodiment 3
[0027] Embodiment 3: same as embodiment 1, except that the soldering material is a Sn-Pb soldering material, the composition and parts by weight of the flux are adjusted to: 6-8 parts of rosin, 1-2 parts of turpentine, 60-65 parts of absolute alcohol , 0.2-0.4 parts of triethanolamine, 0.3-0.5 parts of cetyltrimethylammonium bromide, 0.05-0.1 parts of succinic acid, 0.1-0.2 parts of sodium palmitate, and 0.01-0.02 parts of benzotriazole.
[0028]
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