Friday, November 8, 2013

The Importance Of Reflow Soldering Oven

By Alyce Powell


Reflow soldering oven is one way to attach more than one electrical components to work on the contact pads with the use of the solder paste. This paste is usually a sticky substance which is a mixture of the powdered solder and flux. The whole thing is subject for good control which can melt and connect the full joints.

Heating is accomplished by passing the assembly throughout the reflow oven or under the lamp or by soldering each joint using a hot air materials, in most cases, it is a pencil. The soldering is the most common technique to attach the surface mount to the circuit board. You can also fill the holes with the paste then insert the materials through the paste.

Practicing a wave soldering is simpler and this is the reason why it is cheaper and simpler. Reflow is not mostly used on pure hole boards. When you use the boards that contain the mix of the components, the reflow will allow each wave to be eliminated from the assembly. It can then reduce the assembly cost.

Your main goal is to slowly melt the solder then heat the adjoining surface of the elements. You can make it without even overheating or totally damaging all the electrical tools. While the process is going on, there are usual stages that someone must need to undergo. These are zones with its own profile.

In the first zone, the maximum slope can be the relationship between time and temperature. It can also measure how fast it is on the PCB or know as printed circuit board. The zone is the longest procedure thus it has its corresponding rate. Avoid any type of damage by exceeding the rate of the slope.

The second procedure is what you call as thermal zone where the entire exposure happens. This is the period of solder paste removal and also the time for flux activation. This is where the materials may undergo oxide reduction on the component p ads and leads. High temperature may lead to oxidation and termination of the objects used.

Then comes the process where it reaches its maximum rate. The important consideration to remember is the maximum temperature which will allow to undergo the whole process. Its limit is fully determined in the assembly. This is being recommended for the monitoring and keeping up the process.

The cooling zone is to gradually cool the processed board and then solidify all the solder joints. Proper cooling gives thermal shock to every component. The fast cooling rate is selected to have a fine structure that has a good quality unlike the others. The parameters being used must be considerable enough to analyze the results.

The following are only some of the major reasons why reflow soldering oven is important to be done correctly. One must avoid the wrong process of doing it in order to avoid all the bad effects of it. Upon processing, he or she must consider the points that have to be made.




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