Purple copper bar is a non-ferrous metal bar produced by extrusion or continuous casting. Purple copper bar belongs to a kind of copper bar. The cross-section of copper rods is round or shaped solid, used for production and processing of copper rods, according to the appearance of different, is divided into round rods and shaped rods. According to the production method, it is divided into extrusion and continuous casting. Purple copper bar characteristics: purple copper bar is named because of the purple red color, has good electrical conductivity, thermal conductivity, corrosion resistance and processing properties, can be welded and brazed.
The electrical and thermal conductivity of copper is second only to silver, widely used in the production of electrical and thermal conductivity equipment. Copper in the atmosphere, seawater and some non-oxidizing acid (hydrochloric acid, dilute sulfuric acid), alkali, salt solution and a variety of organic acids (acetic acid, citric acid) has good corrosion resistance, used in the chemical industry.
Purple copper rods are much more widely used than pure iron, 50% of copper is electrolytically purified into pure copper each year for use in the electrical industry. Here said copper, indeed to be very pure, containing copper up to 99.95% or more before, a very small amount of impurities, especially phosphorus, arsenic, aluminum, etc., will greatly reduce the conductivity of copper.
Commonly used copper rod grade
T2 copper
Standard: (GB/T5231-2001)
Characteristics
Good electrical conductivity. Thermal conductivity. Corrosion resistance and processing performance, can be welded and fiber welding. Containing reduce electrical conductivity. Thermal conductivity of impurities less, trace amounts of oxygen on the conductive. Thermal conductivity and processing and other properties have little effect, but easy to cause "hydrogen disease", should not be in the high temperature (such as > 370 °) reducing atmosphere in the processing (annealing. Welding, etc.) and use
Chemical composition
Cu+Ag: 99.90
Bi: 0.001
Sb: 0.002
As: 0.002
Mechanical Properties
Tensile strength: (Rm/MPa) ≥295
Rockwell hardness: (HRF) ≥65
Elongation: (%) ≥3
Characteristics: High purity, fine organization, very low oxygen content. No porosity, trachoma, loose, excellent electrical conductivity, electro-etching out of the mold surface precision, heat treatment process, electrode non-directional, suitable for fine hitting, fine hitting, with good thermoelectric channel, processing, ductility, corrosion resistance and weather resistance.
