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Metal forming equipment manufacturers take you to understand the characteristics of metals

Release Date:2020-12-21 15:40:50 Author:Wire drawing machine manufacturer Views:

I believe everyone is familiar with metals. Metals are ubiquitous in our daily lives. Today, metal forming equipment manufacturers are here to talk about the characteristics of metals.
Firstly, metals have a special metallic luster, most of which are gray white, while non-metals come in various and complex colors.
Secondly, except for mercury, which is a liquid at room temperature, other metals are generally solid and heavy, difficult to melt, while many non-metals are gases or liquids at room temperature.
Thirdly, most metals are good at conducting and transferring heat, while non-metals are often not good at conducting and transferring heat. Therefore, many electrical appliances, pots, and pots are made of metals.
Fourthly, most metals can be beaten into thin sheets or drawn into thin wires, such as tin foil, copper wire, etc., while solid non-metals are usually very brittle.
Of course, what was mentioned above is only "general" and has no clear boundaries. In fact, there are many non-metals that are very similar to metals, while some metals have non-metallic properties. For example, the chemical composition of graphite is carbon, not metal, but it, like metals, has a gray metallic luster and is good at heat transfer and conductivity. Antimony, although metallic, is very brittle and not easy to conduct heat and electricity. It has certain non-metallic properties, but the fundamental difference between metals and non-metals is that the resistance of metals increases with temperature, that is, metals have a positive temperature coefficient of resistance, while the resistance of non-metals decreases with temperature, that is, they have a negative temperature coefficient.
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