Fer à souder

For permanent repairs to electrical connections, use an electric soldering iron. A pencil-tip iron of 15-25 watts is suitable for small connections, but a large iron of about 150 watts is preferable. It is best to run the iron off the mains, but irons that can be run off a 12 volt car battery are available if necessary.

To solder a connection, heat the iron for a few minutes until it is hot enough to melt the solder. Clean the connection and prepare it with soldering flux to remove surface coating. If you use cored solder wire, which has flux running through it, you do not need separate flux.

Apply the solder - cored solder wire or solder paste - and use the iron to melt it and fuse the metals.

A soldering iron is a hand tool used in soldering. It supplies heat to melt the solder so that it can flow into the joint between two work pieces.

A soldering iron is composed of a heated metal tip and an insulated handle. Heating is often achieved electrically, by passing an electric current (supplied through an electrical cord or battery cables) through a resistive heating element. Cordless irons can be heated by combustion of gas stored in a small tank, often using a catalytic heater rather than a flame. Simple irons less commonly used than in the past were simply a large copper bit on a handle, heated in a flame.

Soldering irons are most often used for installation, repairs, and limited production work in electronics assembly. High-volume production lines use other soldering methods. Large irons may be used for soldering joints in sheet metal objects. Less common uses include pyrography (burning designs into wood) and plastic welding.

Fer à souder

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