Медный катод 99 Чистая медь катодный лист поставщик на китайской фабрике

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Products Description




item
value
Weight
125KG/sheet,2.5tons/ bundle
Grade
Pure Copper
Cu (Min)
99.97%
Place of Origin
China
Brand Name
YFX
Model Number
99.99%
Processing Service
Cutting
Copper cathode
Copper Cathode/Electrolytic Copper Cathode/99%


Key Specifications/Special Features:
1.purity 99.97%-99.99%
2.Weight of each sheet: 125kgs (+/- 1%)
3.Net weight of each pallet: 2mts (+/- 1%)
4.Min. weight in each container: 20mts approx.
1. Gross weight of each container: 22.20mts approx.
5.Dimensions: 914*914*12mm

hysical properties
Copper is a rose-red metal, soft and metallic luster, with a density of 8.92 g/cm 3, a melting point of 1083.5 C, a boiling point
of 2595 C. It has good ductility, flexibility and strength. In terms of conductivity and thermal conductivity, copper is second
only to silver, and it can be processed under cold and hot pressure because it has a face-centered cubic lattice and copper and
its compounds are not magnetic. The vapor pressure of copper at melting point is very low, so it is not easy to volatilize at
metallurgical process temperature.
Chemical propertiesLiquid copper can dissolve some gas, H2, O2, SO2, CO2, CO, and water vapor, dissolved gas on the mechanical
properties and electrical conductivity of copper all have certain influence, pure copper with dry air at room temperature and wet
air doesn't work, but in CO2 in wet air, the surface will produce green film CuCO3Cu (OH) 2 is also called patina, it is no longer
guarantee copper corrosion.When copper is heated to 185℃ in the air, it begins to interact with oxygen and forms a layer of dark
red copper oxide on the surface. When the temperature is higher than 350℃, the copper color gradually changes from rose to copper
to black.Copper can be dissolved in nitric acid and sulfuric acid with oxidant. Copper can be dissolved in ammonia water. It can
also be directly combined with oxygen, halogen and other elements.

The quality of cathode copper: copper concentrate by electrolytic refining method or cathode copper produced by electrolytic
deposition according to GB/T467-1997 the provisions of the cathode copper cathode copper by chemical composition can be divided
into high purity cathode copper (Cu - CATH - 1) and the standard of cathode copper (Cu - CATH - 2) and two brand of cathode copper
test methods: high purity cathode copper chemical composition of the arbitration analysis method according to GB/T13293-1991
chemical analysis method of high purity copper anode, standard copper cathode of the chemical composition of the arbitration
analysis method according to GB/T5121-1996Specification of methods for chemical analysis of copper and copper alloys for visual
inspection of surface quality
Use of electrolytic copper:
Electrolytic copper is a non-ferrous metal closely related to human beings. It is widely used in electrical, light industry,
machinery manufacturing, construction industry, national defense industry and other fields. It is second only to aluminum in the
consumption of non-ferrous metal materials in China.
1. Copper is most widely used and used in the electric and electronic industries, accounting for more than half of the total
consumption. It is used for winding resistance of various cables and wires, motors and transformers, switches and printed circuit
boards, etc.
2. In the manufacture of machinery and transport vehicles, it is used to manufacture industrial valves and accessories,
instruments, sliding bearings, moulds, heat exchangers and pumps, etc.
3. It is widely used in manufacturing vacuum, distillation and brewing pots in chemical industry.
4. In the national defense industry, it is used to manufacture bullets, shells, gun parts and so on. For every 1 million rounds of
bullets produced, 13-14 tons of copper are needed.
5. In the construction industry, it is used for various pipes, pipe fittings, decorative devices, etc.



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