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Answer:
Step 1 – Melting the Solder
This is the very first step in the entire wave soldering process. It is the basic requirement of the process to melt the solder. The wave soldering machine has solder contained in a tank. The tank is heated to melt the solder. Appropriate temperature is reached to meet the right consistency, so that the process of soldering can be carried out further.
Step 2 – Cleaning the Components
This is a very crucial step to be carried out. The components to be soldered are cleaning thoroughly in this step. If any oxide layers are formed on the components, then they are removed. This is done by the process called fluxing. There are two main types of fluxing – corrosive (high acidity) and noncorrosive (high acidity).
Step 3 – Placement of the PCB
After melting the solder and cleaning the components to be soldered, the printed circuit board is placed on the melted solder. The board is held with the metal clasps of the machine, which ensure the firm positioning and placement of the PCB.
Step 4 – Application of Solder
Now that the PCB is placed properly, molten solder is applied, and is allowed to settle. Sufficient time is given to this step to allow the solder to settle into the joints completely, and ensure no bumps are formed.
Step 5 – Cleaning
This is the final step in the wave soldering process. Any flux residues formed during the process are cleaned in this step. The circuit board is washed and cleaned with the help of deionized water and solvents.