How to adjust the uneven wave peak of wave soldering
2021-05-24 Classify: FAQ Author: GrandSeed Browse: 1376
Wave soldering is the process of welding solder joint by using the action of pump to form a specific shape of solder wave on the solder groove liquid level. The PCB of the component is inserted into the conveyor chain, and the welding spot welding is realized through the solder wave peak through a certain angle and a certain immersion depth. It can be seen from the definition that the state of the solder spray peak is very important.
But the actual wave soldering work for a long time, sometimes there will be a wave soldering spray tin uneven situation, then the wave soldering wave uneven how to adjust? Let's share the solution here.
If the solder plane of wave soldering is not parallel to the rail plane, the tin furnace can be adjusted as a whole. Note that the tin spraying surface does not have to be horizontal, and it can be inclined at an angle with the horizontal plane as a whole! The machine is horizontal and the tin cylinder is also horizontal, but the turbine of the tin cylinder is not corroded (five years). The nozzle is cleaned once every two weeks, but the wave crest spurts out unevenly. Is this also the case when the soldering time is long and the eutectic point of tin is not reached.
In fact, the common reaction is that the wave soldering wave is not smooth. It is very likely that the filter screen of the first or second wave tin spout in the wave soldering furnace is blocked by tin slag or other impurities, resulting in that some parts can be sprayed with tin, and some parts cannot be sprayed with tin during the wave soldering, so that the wave soldering wave is not smooth. There are two ways to solve this problem
1. The smoothness of the wave crest lies in maintenance. Generally, it needs to be removed to clean the tin slag in the filter screen one week.
2. If it is not convenient for maintenance in case of emergency, it can be knocked on the filter net when the wave crest is opened with a shovel or a barrel, so that the wave crest of wave crest welding can be restored to be flat.