In September, PCBAMake PCB assembly manufacturing factory added a new SMT line

Next, let’s take a look at what will be different about this newly added SMT PCB Assembly manufacturing production line.

The use of nitrogen welding furnace is mainly to enhance welding quality, so that welding occurs in environments with very low oxygen content (100PPM), which can avoid oxidation problems of components. Therefore, the main problem with nitrogen welding furnaces is to ensure that the lower the oxygen content, the better. The control of oxygen content for users is mainly to ensure the purity of the nitrogen gas source. Generally, the purity of industrial nitrogen can reach 5PPM. The oxygen content in the furnace is mainly related to the sealing design of the furnace. Due to air leakage from the inlet and outlet plates on both sides of the furnace body, the oxygen content on both sides will be higher than that in the middle zone of the furnace body.

The nitrogen welding furnace is filled with nitrogen gas in the welding furnace to prevent air from entering the furnace and prevent oxidation of the component feet in the welding furnace. 

With the high assembly density and Fine pitch assembly technology, nitrogen filled welding furnace processes and equipment have emerged, improving the quality and yield of welding furnaces, and have become the development direction of welding furnaces. The nitrogen welding furnace has the following advantages:

(1) Prevent and reduce oxidation

(2) Improve welding wetting force and accelerate wetting speed

(3) Reduce the generation of solder balls, avoid bridging, and achieve better welding quality

Comparison between nitrogen welding furnace and air welding furnace

PCBAMake work on improving product quality to increase our competitive force,also enable our customer be more competitive in market with g high quality and stable products.