Soldering and desoldering method and device of PCB component

Abstract

The embodiment of the invention discloses a soldering and desoldering method and device of PCB component, and aims at supplying a temperature difference environment condition for PCB soldering and desoldering in order to improve the PCB soldering and desoldering efficiency and success rate. The method in the embodiment comprises the steps of fixing the PCB to a position for processing; preheatingthe PCB through a preheating device; cooling the bottom surface of an area, to be processed, of the PCB through a cooling mechanism; heating the upper surface of the area, to be processed, of the PCBthrough a heating system; and performing soldering and desoldering operation on the upper surface of the area, to be processed, of the PCB. According to the method, the PCB is stably preheated throughthe preheating device; the area, to be processed, of the PCB is cooled through the cooling mechanism; and then the upper surface of the area, to be processed, of the PCB is heated through the heatingsystem, thus the soldering and desoldering temperature difference is realized, and the influence on components surrounding soldering and desoldering elements and components can be decreased, and as aresult, the PCB soldering and desoldering efficiency and success rate can be improved.

Description

technical field [0001] The invention relates to the technical field of PCB technology, in particular to a PCB device soldering and desoldering method and device. Background technique [0002] With the continuous development of related electronic technology fields, the corresponding electronic technology has been widely used. In order to meet the requirements of smaller electronic products, electronic product manufacturing has increasingly adopted precision assembly of micro-components. [0003] In this context, the common feature of printed circuit board (PCB, Printed Circuit Board) manufacturers such as smartphones, solid-state drives, and servers is that they are basically limited by space. Under the condition of high performance, the common practice in the industry is The components are soldered on both sides of the PCB board, which leads to more and more types and quantities of components used on the circuit board. In the soldering process of PCB components, it is easy ...

AI Technical Summary

Problems solved by technology

[0005] However, the disadvantage of this method of soldering and desoldering is that when the heating is excessive or uneven, it is easy to cause a short circuit between adjacent solder joints caused by solder explosion on the PCB board. Cause certain thermal damage, the success rate and efficiency of this type of welding and desoldering in the industry are relatively low

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