Understand the classification of extruded aluminized copper bars

Understand the classification of extruded aluminized copper bars

classification

Copper has copper plate, copper rod, copper tube, copper strip, copper wire, copper bar, copper material. Copper is a high stability, low maintenance of the roof and curtain wall material, environmental protection, safe use, easy to process and corrosion resistance. Aluminum bronze, tin bronze, silicon bronze, beryllium bronze, copper, brass, copper, tungsten copper, copper, oxygen free copper. Copper plate classification: aluminum copper plate, brass plate, tin copper plate, silicon copper plate, beryllium copper plate, tungsten copper plate, purple copper plate, red copper plate, oxygen free copper plate, all specifications/models of copper plate.

Brass: alloy composed of copper and zinc copper is copper and nickel alloy bronze is copper and other elements in addition to zinc and nickel formed by the alloy, mainly tin bronze, aluminum bronze and other copper copper is high copper content, other impurities total in less than 1%. Red copper, also known as red copper, has a density of 8.96 and a melting point of 1083-# 8451. . Has very good electrical conductivity and thermal conductivity, plastic is very good, easy to hot pressure and cold pressure processing, large used for manufacturing wire, cable, brush, electric spark special electrical corrosion of copper and other products requiring good electrical conductivity. Named for its purplish red color. It is not necessarily pure copper, and is sometimes added with less deoxygenin or other elements to improve the material and properties, so it is also classified as a copper alloy.

Chinese red copper processing materials can be divided into four categories according to their composition: ordinary red copper (T1, T2, T3, T4), oxygen-free copper (TU1, TU2 and high-purity, vacuum oxygen-free copper), deoxidized copper (TUP, TUMn), and special copper (arsenic copper, copper tellurium, silver copper) with little alloying element. Copper, second only to silver in electrical and thermal conductivity, is widely used in making electrical and thermal conductivity equipment. Red copper has good corrosion resistance in atmosphere, sea water, some non-oxidizing acids (hydrochloric acid, dilute sulfuric acid), alkali, salt solution and many organic acids (acetic acid, citric acid), and is used in chemical industry. In addition, red copper has good weldability and can be processed into various semi-finished and finished products through cold and thermoplastic processing. In the 1970s, the production of red copper surpassed that of all other copper alloys. The micro impurities in red copper have a serious effect on the conductivity of copper. Among them, titanium, phosphorus, iron and silicon significantly reduce the conductivity, while cadmium and zinc have little effect. The solid solubility of oxygen, sulfur, selenium and tellurium in copper is very small, which can form brittle compounds with copper, and has little influence on electrical conductivity, but can reduce processing plasticity. When ordinary red copper is heated in a reducing atmosphere containing hydrogen or carbon monoxide, hydrogen or carbon monoxide can easily interact with cuprous oxide (Cu2O) in the grain boundary to produce high-pressure water vapor or carbon dioxide gas, which can make copper crack. This phenomenon is often called copper. Hydrogen disease & # 8221; . Oxygen is harmful to the weldability of copper. Bismuth or lead and copper form low melting point eutectic, which makes copper hot brittle. However, when the brittle bismuth is distributed in thin film at grain boundary, copper is cold and brittle. Phosphorus can significantly reduce the electrical conductivity of copper, but can improve the fluidity of copper solution and improve the weldability. Suitable lead, tellurium and sulfur can improve machinability.

Brass: zinc as the main addition of copper alloy, with a beautiful yellow, collectively known as brass. Two alloys of copper and zinc are called ordinary brass or simple brass. Three or more brass is called special brass or complex brass. Brass alloys containing less than 36% zinc are composed of solid solution and have good cold processing properties. For example, brass containing 30% zinc is commonly used to make shell casings, commonly known as shell brass or tri-brass. Brass alloys containing between 36 and 42% zinc consist of and solid solution, the most commonly used being 64 brass containing 40% zinc. In order to improve the performance of ordinary brass, often add other elements, such as aluminum, nickel, manganese, tin, silicon, lead and so on. Aluminum can improve the strength, hardness and corrosion resistance of brass, but reduce the plasticity. Tin can improve the strength of brass and corrosion resistance to sea water, so called navy brass, used for ship thermal equipment and propeller. Lead can improve the cutting performance of brass. This kind of free cutting brass is often used as part of clocks and watches. Brass castings are commonly used for valves and piping fittings. Bronze: originally refers to copper tin alloy, and copper alloys other than brass and white copper are all called bronze, and the name of the first major additive is often given before the name of bronze. Tin bronze has good casting performance, friction reduction performance and mechanical performance, suitable for the manufacture of bearing, worm wheel, gear and so on. Lead bronze is a widely used bearing material for modern engines and grinders. Aluminum bronze has high strength, wear resistance and corrosion resistance. It is used for casting gear, shaft sleeve and Marine propeller with high load. Beryllium bronze and phosphorous bronze have high elastic limit and good electrical conductivity, which are suitable for manufacturing precision spring and electric contact parts, beryllium bronze is also used for making sparkless tools used in coal mine and oil depot.

White copper: copper alloy with nickel as the main additive. Copper nickel two alloy called ordinary white copper; Add manganese, iron, zinc, aluminum and other elements of copper alloy said complex copper. Industrial copper is divided into structural copper and electrical copper two categories. Structural copper is characterized by good mechanical properties and corrosion resistance, beautiful color. The copper is widely used in manufacturing precision machinery, chemical machinery and ship components. Electrical copper generally has good thermoelectric properties. Manganese copper, kangtong, kao copper is manganese different manganese white copper, is the manufacture of precision electrical instruments, rheostat, precision resistance, strain gauge, thermocouple and other materials.

White copper: copper alloy with nickel as the main additive. Copper nickel two alloy called ordinary white copper; Add manganese, iron, zinc, aluminum and other elements of copper alloy said complex copper. Industrial copper is divided into structural copper and electrical copper two categories. Structural copper is characterized by good mechanical properties and corrosion resistance, beautiful color. The copper is widely used in manufacturing precision machinery, chemical machinery and ship components. Electrical copper generally has good thermoelectric properties. Manganese copper, kangtong, kao copper is manganese different manganese white copper, is the manufacture of precision electrical instruments, rheostat, precision resistance, strain gauge, thermocouple and other materials.