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The alloy of copper and tin is called bronze, which is named for its blue color. It was a common alloy in ancient times (such as the Bronze Age in China). Bronze generally has good corrosion resistance, wear resistance, castability and excellent mechanical properties. It is used to manufacture precision bearings, high-pressure bearings, seawater corrosion-resistant mechanical parts on ships, as well as various plates, pipes and rods. Bronze also has an unusual feature-"heat shrinkage and cold expansion". It is used to cast statues and expands after cooling to make eyebrows clearer.
Copper is a non-ferrous metal with a close relationship with human beings. As a core wire, copper is widely used in electrical, light industry, machinery manufacturing, construction industry, national defense industry and other fields. aluminum.
In the manufacture of machinery and transportation vehicles, it is used to manufacture industrial valves and accessories, instruments, plain bearings, molds, heat exchangers and pumps.
It is widely used in the chemical industry to make vacuum appliances, retorts, brewing pots, etc.
Used in the defense industry to make bullets, artillery shells, gun parts, etc.
In the construction industry, it is used as a variety of pipes, pipe fittings, decorative devices and so on.
Brass is an alloy of copper and zinc and is named for its yellow color. Brass has good mechanical properties and wear resistance. It can be used to manufacture precision instruments, ship parts, gun shells, etc. Brass sounds nice, so instruments such as gongs, cymbals, bells and horns are made of brass.
Copper is an alloy of copper and nickel. It has the same color and luster as silver, and it is not easy to rust. Commonly used in the manufacture of coins, appliances, meters and decorations.
Copper is a transition element, chemical symbol Cu, English copper, atomic number 29. Pure copper is a soft metal. When the surface is just cut, it is red-orange with metallic luster, and the element is purple-red. It has good ductility, high thermal conductivity and electrical conductivity, so it is the most commonly used material in cables and electrical and electronic components.
Copper alloys have excellent mechanical properties and low resistivity. Among the most important are bronze and brass. In addition, copper is also a durable metal that can be recycled multiple times without compromising its mechanical properties.
Alloy of 6/24 copper and 18/24 gold. Red and yellow, high hardness, can be used to make jewelry and decorations.
The alloy of copper, zinc and tin is resistant to seawater erosion and can be used to make ship parts and balancers.
Copper can be used to make many alloys. The important alloys of copper are as follows:
The alloy of copper with tin and phosphorus is hard and can be used for springs.
COPPER
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