How are antique copper tiles produced? This has attracted the attention of many people. Before understanding the production process of copper tiles, let's first understand the copper; What is copper? Copper is one of the earliest metals used by mankind. As early as prehistoric times, people began to dig open-pit copper mines and use the obtained copper to make weapons, tools and other utensils. The use of copper had a far-reaching impact on the progress of early human civilization. Copper is a metal found in the earth's crust and ocean. The content of copper in the earth's crust is about 0.01%. In some copper deposits, the content of copper can reach 3% ~ 5%. Most of copper in nature exists as compounds, namely copper ore.
Then, the raw materials of copper tile are mainly brass and red copper. Copper alloy is composed of pure copper as the matrix and one or several other elements. Pure copper is purplish red, also known as red copper. The density of pure copper is 8.96, the melting point is 1083 ℃, and it has excellent conductivity, thermal conductivity, ductility and corrosion resistance. It is mainly used to make electrical equipment such as generators, buses, cables, switchgear and transformers, heat exchangers, pipelines, flat plate collectors of solar heating devices and other heat conduction equipment. The commonly used copper alloys are divided into three categories: brass, bronze and white copper.
Brass has strong wear resistance. The seamless copper pipe made of brass is soft and has strong wear resistance. Brass seamless pipes can be used in heat exchangers and condensers, low-temperature pipelines and submarine transportation pipes. Manufacturing sheet, bar, bar, pipe, casting parts, etc. Copper content is 62% ~ 68%, strong plasticity, manufacturing pressure equipment, etc.
Pure copper is a rose red metal, which is purple after the formation of copper oxide film on the surface. Therefore, industrial pure copper is often called red copper or electrolytic copper. The density is 8-9g / cm ²， Melting point 1083 ° C. Pure copper has good conductivity and is widely used in the manufacture of wires, cables, brushes, etc; Good thermal conductivity, commonly used to manufacture magnetic instruments and meters that need to be protected from magnetic interference, such as compass, aviation instruments, etc; Excellent plasticity, easy to hot press and cold press processing, can be made into tubes, rods, wires, strips, strips, plates, foils and other copper materials. Pure copper products include smelting products and processed products
Copper has good processability, good plasticity and easy cold and hot forming; Cast copper alloy has good casting properties. It has some special mechanical properties, such as excellent antifriction and wear resistance, high elastic limit and extreme fatigue; Therefore, during the production of copper process, it is rolled into a required shape through precision equipment; That is what we now call copper tile; Copper has longer service life and higher cost; Complex process in production;