We would also ensure that high quality standards are met at reasonable costs. Trying to manage your SMT production? Nex PCB might be able to help.Īt NexPCB, we have the necessary technologies and expertise for your SMT, PCB and PCBA production. This has the benefit of reducing nitrogen consumption during this process. Today's solder manufacturers are working to develop products with a higher oxygen content that can be well welded without washing the solder paste.
Since different welding products require different nitrogen levels, it's important to choose the right flux to match the process, heat and component tolerances.
SMT REFLOW OVEN SERIES
To obtain better welding quality, it is particularly important to use solder paste with less active flux to improve solder joint performance and reduce discoloration. The ETSMax Lead-Free Reflow Series Ovens deliver high throughput with a choice of eight (8), ten (10), or twelve (12) heating zones and 460mm (optional: 610mm). Most of the furnaces used at present are the forced hot air circulation type. (3) Reduces the generation of solder balls, bridging and obtain better welding quality (2) Improves the wetting power of welding and speed up the wetting speed (1) Prevents oxidation in components during heating Using a nitrogen reflow technique has the following advantages: Since nitrogen is lighter than oxygen, it forces the oxygen to the bottom of the chamber and reduces the exposure of the reflowing parts to oxygen. This is done by pumping nitrogen into the chamber.
As the name suggests, this is achieved by filling the reflow chamber with nitrogen during the heating process. This process is mainly used to enhance the weld quality where oxidation can affect the ability of components to adhere to the flux. The main purpose of nitrogen reflux welding is to limit the amount of oxygen in the reflow furnace thereby decreasing the oxidation that is common during this process.
SMT REFLOW OVEN DRIVERS
These improvements are the main drivers for many of the technologies that we have been discussing in o ur SMT series. With the increase of assembly density and the appearance of fine spacing assembly technology, Nitrogen filled reflow welding processes and equipment were created to increase the quality and yield of reflow welding.
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