A cooling device for a high-speed tin coating machine

Abstract

The invention relates to a cooling device for a high-speed tin coating machine. The cooling device mainly comprises a draught fan, an installation frame, a passing band port, a cooling box and the like. Eight blowing nozzles of the cooling device are symmetrically installed on the two sides of the interior of the cooling box correspondingly and arranged sequentially from top to bottom. When the cooling device works, cold air enters an air inlet of a cooling pipe from the draught fan and then flows to an air outlet in the cooling pipe and is output through an air guiding groove of the air outlet in a mode that a certain included angle is formed between the band moving direction and the cold air, a tin-coated copper band which is uniformly cooled by an air knife through blowing moves vertically from bottom to top along the passing band port in the cooling pipe, the coated tin on the surface of the copper band is cooled rapidly through the multiple blowing nozzles, and the effect that the thickness of a thin tin cladding layer is uniform is guaranteed.

Description

technical field [0001] The invention relates to a cooling device for a high-speed tin coating machine, in particular to an air cooling device in the tin coating process of welding strips. technical background [0002] Tin-coated copper ribbon is a key material in the manufacture of photovoltaic industry equipment, and the quality of the ribbon is directly related to the superior performance of photovoltaic equipment components. The production process of brazing strip generally includes processes such as rolling, annealing, and tin coating, among which tin coating is an important process. The general working process of tin coating is to soak the rolled and annealed copper strip in the molten tin pool, draw it out after a period of time, and blow off the uneven liquid tin droplets attached to its surface with an air knife, and finally coat it The tinned copper tape is air-dried. If the strip is not cooled uniformly during processing, the shape and tolerance of the root coppe...

AI Technical Summary

Problems solved by technology

If the strip is not cooled uniformly during processing, the shape and tolerance of the root copper and copper alloy strips will be unstable, which will reduce product quality and work efficiency. However, the use of traditional cooling devices has the following disadvantages: On the one hand, only a single The fan cools the solder strip after tin coating, the cooling range is small, and the cooling speed cannot be increased

On the other hand, the uneven cooling of the tin layer blown by the air knife will cause part of the surface tin to not be completely solidified, and the tin surface will be crushed when it is conveyed, which will affect the quality of the soldering strip.

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