Description
Main functions
-Key Features
Copper is a transition element, chemical symbol Cu, English copper, atomic number 29. Pure copper is a soft metal, with a metallic luster of red orange color when the surface is just cut, and the single substance is purplish red. It has good ductility, high thermal conductivity and conductivity, so it is the most commonly used material in cables, electrical and electronic components, and it can also be used as a building material, which can form many kinds of alloys. Copper alloy has excellent mechanical properties and low resistivity, among which bronze and brass are the most important. In addition, copper is also a durable metal, which can be recycled many times without damaging its mechanical properties.
Divalent copper salt is the most common copper compound. Its hydrated ions are usually blue, while chlorine as ligand is green. It is the source of the colors of minerals such as chalcopyrite and turquoise, and has been widely used as pigments in history. When the copper building structure is corroded, it will produce copper green (basic copper carbonate). Decorative arts mainly use copper and copper containing pigments.
Copper is one of the earliest metals used by human beings. As early as prehistoric times, people began to dig open-pit copper mines and use the copper to make weapons, tools and other utensils. The use of copper had a profound impact on the progress of early human civilization. Copper is a kind of metal existing in the earth’s crust and ocean. The content of copper in the crust is about 0.01%. In some copper deposits, the content of copper can reach 3% – 5%. Most of the copper in nature exists in compounds, namely copper ores.
The activity of copper is weak. The reaction between iron and copper sulfate can replace copper. Copper is insoluble in non oxidizing acids.
Use
is a non-ferrous metal closely related to human beings, and is widely used
Copper as inner conductor
Copper as inner conductor
It is used in electric, light industry, machinery manufacturing, construction industry, national defense industry and other fields, and is second only to aluminum in the consumption of non-ferrous metal materials in China. Copper is a red metal, but also a green metal. It is said to be a green metal, mainly because it has a low melting point and is easy to remelt and remelt, so it is quite cheap to recycle. In ancient times, it was mainly used for the casting of utensils, works of art and weapons, and the more famous utensils and works of art, such as houmu Wuding and Siyang fangzun.
Specifications
Copper Wire Scrap diameter: 1.2mm / single, 1.5mcopper wirem / single, 1.75mm / single. 2.0mm / single
15mm/stranding 18mm/strangding 22mm/stranding 25mm / stranding 28mm/stranding
Copper Wire Scrap weight/reel: 1000kg / bag
Copper Wire Scrap tensile strength: 1000 N/mm2, 900 N/mm2, 500 N/mm2, 450 N/mm2, N/mm2
Copper Wire Scrap purity: 99.9% minimum
Capacity: 2000 mt/mt/month
Copper Wire Scrap usage:
Electronics, light industry, machinery, construction, national defense industries
Copper Wire Scrap is an important raw material source.
Composition and materials
Copper wire scrap (Millberry) 99.78%
Item Standard (%) Results(%)
Purity (%) ≥99.99 99.98
Carbon 0.03 0.03
Coblet <0.001 0.0009
Iron 0.005 0.005
Phosphorus <0.01 0.009
Sulphur <0.01 0.009
Zinc 0.003 0.003
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