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Q: Does solder expire
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Continue Learning about Electrical Engineering

Are solder joints mechanically too weak?

Depends on the solder used. If silver solder is used it is actually stronger than the pipe itself.


What tools are needed to solder circuit boards?

Soldering iron, solder, flux


You want to solder a broken zener diode back together with liquid solder?

This is not possible. You must replace the diode.


What should the underside of a circuit board look like should the solder be flat spots or sharp points?

The solder joints should be convex and shiny.


What is soldering wire?

Solder is a group of metallic alloys that melts at a relatively low temperature and is generally used to connect other pieces of metal together. The low melting point makes it useful for some applications, especially electronic circuitry and some plumbing applications, though it should be noted that plumbing solder is a different alloy than electronic solder and plumbing solder has little or no lead to minimize lead exposure to the people who drink the water. Having described what solder IS, soldering wire is just that, its a wire that is made of solder. Solder wire is useful when working on electronic circuits since it allows the user to control how much will be put on an electronic connection. Solder wire comes in several sizes, as well as with or without a flux core. Flux is a material (usually either acidic or rosin) that encourages melted solder to flow onto other metals, usually copper, iron or brass. Other types of solder are available for use on materials such as aluminum, but solders should match the application to match the type of metals you are joining.