Copper plate copper strip is a relative barrier in the copper processing industry in the field, its processing fee in the copper processing industry belongs to one of the higher categories, copper plate copper strip according to the colour, raw material type and proportion can be divided into copper plate strip, brass plate strip, bronze plate strip and white copper plate strip. Pure copper can also be called red copper, refined copper or oxygen-free copper, is a pure copper, electrical conductivity and plasticity are better, but the strength and hardness is worse. Brass is a kind of copper containing other alloy components (zinc, tin, lead, etc.), electrical conductivity and plasticity of copper is worse than the pure copper, but the strength and hardness to be higher, adding zinc can increase its strength, adding tin can improve its resistance to seawater and marine atmospheric corrosion, adding lead can improve the cutting and processing and improve wear resistance. Bronze is copper and tin alloy, can be divided into tin bronze and special bronze, tin bronze has good friction performance, anti-magnetic and low-temperature toughness, special bronze to add other elements to replace the tin, most of the special bronze than the tin bronze has a higher machine, wear resistance and corrosion, commonly used aluminium bronze and lead bronze and so on.
White copper is an alloy of copper and nickel, plus manganese, iron, zinc, aluminium and other elements of the white copper alloy called complex white copper, featuring good mechanical properties and corrosion resistance, beautiful colour and lustre, and good thermoelectric properties. In addition, there is a part of high-precision copper alloy sheet and strip, high-precision refers to its various types of technical specifications (such as chemical composition, thickness deviation, shape and surface quality) and physical properties (generally including tension, hardness and bending force) in line with the higher precision requirements.
Copper according to its excellent thermal conductivity and corrosion resistance can be applied to connectors and cables copper strip (communications, radio frequency, electronic cables), high purity and high conductivity performance can be widely used in transformers, no "hydrogen disease" performance can be used as an electric vacuum instrumentation devices. According to its thermal conductivity in the radiator and water tank copper belt application is also more popular, but with the increase of aluminium instead of copper, the relevant aspects of the application is also gradually reduced.
Brass has high strength and plasticity, easy to cold and hot pressure processing, in electrical connectors, bathroom equipment, terminals, clocks and lamps and other decorative applications are more common, and its good mechanical properties are suitable for nuts, washers (sheet) springs, radiators and so on.
Bronze combines the high strength and high hardness of brass and copper high conductivity and high thermal conductivity performance, adding tin also makes it have better mechanical properties, its excellent overall performance by the market and the current Chinese bronze production accounted for a relatively small, only 11% in 2021, the future of the market penetration rate is higher, is the development of a class of copper sheet and strip with more potential. Phosphor bronze has high strength, elasticity, wear resistance and antimagnetism, can be used as wear-resistant parts in precision instruments and antimagnetic parts, such as gears, vibration plate, contactors, bearings, turbines and so on.
White copper has good workability, magnetic shielding, corrosion resistance and high elasticity, high-precision zinc white copper sheet and strip are widely used in mobile phone shielding cover, eyeglass frames, optical instruments and high-end handicrafts and so on.
Post time: Jun-20-2024