Soldering Process

Soldering Process

Introduction

Soldering can be described as, the technique of making a physical electrical connection by joining or restoring already joint electrical connections, by the help of mixture of metal filler. Metal filler consists of solder and lead. In case of soldering solder should have melting temperature less than 450 degree centigrade. For that purpose mostly metal or tin is use as solder.

The soldering surfaces should be cleaned than suitable flux is applied on them and surfaces are heated. For heating function soldering iron is use it liquefies the solder which is added to the connection, generally is in the middle of components surfaces. It is mandatory that power should flow through connection. As compare to welding joint the strength of soldered joint is not as stronger.

The good soldering practices ensure and preserve the consistency of the discrete electronic component. It also guarantees high-quality and reliable physical connection of the component into the given circuit assembly. An efficient module consistent performance depends upon the quality of connections and components. Similarly this makes soldering the most important phase of electronic item assembly.



Discussion

Material Required for the Soldering Process

The basic material which is initially required for the soldering process is the place with protected surface where soldering could be conducted, after that the material list is as below,

Temperature controlled Soldering Iron

Wires that are to be soldered (Eg: AWG28 - AWG32)

Rosin core (PbSn or lead free)

Soldering Flux (Eg: Kester 1544)

A set of scissors

Moist sponge to clean the soldering iron

Masking or electrical tape for covering joints. (Pui audio, (2012).pp 01)

Soldering process

An efficient Soldering process consist several steps and practices. These steps are advised to follow gradually with proper safety precautions and in proper environment. Generally recommended steps involved in the soldering process are as following:



Process

Step 1 - Preheat Iron. The soldering iron must be plugged in and allowed to be heated for at least five minutes for affective soldering.

Step 2 - Prepare Wire. Prepare both wires by cutting the ends of each wire which are to be soldered in an appropriate manner.

Step 3 - Strip Wire. Using a wire stripper, strip off approximately half inch of the insulation from both wires as shown in Figure 2. Now check to be sure that there is no hanging or frayed wire. If there is trim them off in order to get neat look.

Step 4 - Clean Iron. Rub the hot tip of soldering iron on to a moistened sponge to clean the tip of the soldering iron.



Step 5 - Tin Iron. Now manually tin iron. The best quality of solder is made of Rosin core, lead and tin. This lets the maximum amount of heat transformation between soldering iron and the wire.



Step 6 - Twist Wires. Wrap or Twist the wires together that are to be soldered.

Step 7 - Apply Heat. Now adjust the heater of solder to max position and make sure that the tip is cleaned properly.

Step 8 - Apply Solder. Apply solder on to the tips of ...