Copper cathode according to GOST 859 has several brands, different amount of impurities included in the composition:
-M00k - Mass fraction of copper in this alloy can be varied by agreement between the manufacturer and the purchaser. However, in the manufacture of M00k total mass fraction of impurities should not exceed 0.0165 percent, including oxygen;
-M0k - Mass fraction of copper above 99.97%;
-M1k - Mass fraction of copper of 99.95%;
-M2k - Mass fraction of the foundations of not less than 99.93%.
Impurities:

  • aluminum, nickel, iron, zinc, silver (they reduce the thermal conductivity and electrical conductivity of the material);
  • bismuth, lead, antimony (negatively affect the processing and the physicomechanical properties);
  • oxygen, arsenic, sulfur, phosphorus and selenium (lower elasticity and corrosion resistance).
    In many areas of the industry uses copper cathode. Often it is used in the production of semi-finished products in the form of wrought copper ingots and copper rods for the production of various steel. Copper cathode - a raw material for copper wire, perhaps, the main area of application. Due to the low resistivity and high thermal conductivity of copper cathode used in the production of wires and power cables, elements of transformers and electric motors, in the radiators and air conditioners, computer fans, as well as in the production of a plurality of alloys:
    - The most common alloy of copper - bronze;
    -melhior has up to 55% of the copper in its composition (from it produce the dishes, decorations, coins);
    -neyzilber (nickel, copper, zinc and the cathode) is used for the manufacture of a medical instrument and artistic products;
    -medno-nickel alloys are highly resistant to degradation by moisture, they are used for the manufacture of products for the marine industry;
    -brass (up to 50% zinc) are widely used in machinery, manufacture of household goods and the chemical industry. From it makes cartridge cases, pipes, pipes for radiators of motor vehicles, commemorative medals, processing equipment, and more.

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