A wave furnace for wave soldering

Abstract

The invention discloses a wave tapping furnace used for wave soldering. The wave furnace comprises a liner suitable for containing soldering fluid, a diversion pipe, a nozzle and a magnetic pump, wherein one end of the diversion pipe is located in the liner so that the soldering fluid in the liner can enter the diversion pipe, the nozzle communicates with the other end of the diversion pipe, the magnetic pump surrounds the liner, and at least one part of the diversion pipe is located in a magnetic field which is generated by the magnetic pump, so that the soldering fluid in the diversion pipe can be sprayed out of the nozzle under the magnetic action.

Description

technical field [0001] The invention relates to the field of circuit board processing and manufacturing equipment, in particular to a wave furnace for wave soldering. Background technique [0002] In PCB soldering manufacturing, products in high-end application fields will use selective wave soldering for soldering processing. In the existing selective wave soldering equipment, the wave crest sending out tin spray nozzle often adopts a conventional mechanical impeller to rotate, so as to send out the solder liquid in the way of generating a pressure difference between the impeller inlet and outlet. The disadvantages of this method are: (1) In a high-temperature liquid tin environment, the device supporting the rotation of the impeller is easy to wear and stick to liquid tin, thereby failing to get stuck; (2) When the rotating impeller rotates in liquid tin, it is easy to produce tin slag, which leads to an increase in welding costs , and it is easy to cause poor welding qua...

AI Technical Summary

Problems solved by technology

In the existing selective wave soldering equipment, the wave crest sending out tin spray nozzle often adopts a conventional mechanical impeller to rotate, so as to send out the solder liquid in the way of generating a pressure difference between the impeller inlet and outlet. The disadvantages of this method are: (1) In a high-temperature liquid tin environment, the device supporting the rotation of the impeller is easy to wear and stick to liquid tin, thereby failing to get stuck; (2) When the rotating impeller rotates in liquid tin, it is easy to produce tin slag, which leads to an increase in welding costs , and it is easy to cause poor welding quality; (3) The rotating mechanism supporting the impeller needs to be installed outside the liquid tin, so that the volume increases, which is not conducive to the design and maintenance of the mechanism; (4) The rotating part of the impeller needs to be cleaned and maintained regularly, which increases the Labor costs

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