Metals have different melting points, or the point where the metal transitions from a solid to a liquid state. Knowing this is important before you begin a project.
There are several different factors that can affect the melting point of a metal, but primarily bond strength. You need to consider the melting point before you start welding, casting, or smelting. Some of these factors include the atomic weight of the metal, its crystal structure, its oxidation resistance, and the number of bonds that exist between the atoms of the metal.
Generally speaking, the higher the melting point of a metal, the more energy that is required to melt the metal. This can be problematic in manufacturing processes, especially when a part of a component is being melted.
Many metals have low melting points. These metals are often useful in applications that require liquid metal. They are also used in circuit boards and jewelry.
One of the most common metal alloys is mercury. Mercury is a dense liquid at room temperature. It is one of the lowest melting point metals.
The most common use of metals with low melting points is in solders. Solders are used to join objects together, and are similar to a hot glue gun.
Low melting point metals are also used in safety devices. Specifically, they can be used in fusible alloy plugs. This allows them to relieve dangerous pressures. Fusible alloy plugs are usually made of indium or gallium.
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