[China Aluminum Industry Network] Aluminum is a light metal with a low density (2.79/Cm3), good strength and plasticity, aluminum alloy has good strength, superhard aluminum alloy strength up to 600Mpa, ordinary hard aluminum alloy The tensile strength also reaches 200-450Mpa, and its steel ratio is much higher than that of steel, so it is widely used in machinery manufacturing. Aluminum is second only to silver and copper and ranks third in conductivity for the manufacture of various wires. Aluminum has good thermal conductivity and can be used as a variety of heat dissipation materials. Aluminum also has good corrosion resistance and good plasticity and is suitable for various pressure processing. Aluminum alloy can be divided into deformed aluminum alloy and cast aluminum alloy according to the processing method. Deformed aluminum alloys are divided into non-heat-treatable aluminum alloys and heat-treatable aluminum alloys. Non-heat-treatable type can not improve the mechanical properties through heat treatment, and can only be strengthened through cold processing deformation, it mainly includes high-purity aluminum, industrial high-purity aluminum, industrial pure aluminum and rust-proof aluminum. Heat-treatable aluminum alloys can be improved in mechanical properties by quenching and aging and other heat treatment methods. It can be divided into hard aluminum, wrought aluminum, super hard aluminum and special aluminum alloys. Aluminum alloys can be heat treated to obtain good mechanical properties, physical properties and corrosion resistance. Cast aluminum alloys can be divided into aluminum-silicon alloys, aluminum-copper alloys, aluminum-magnesium alloys, and aluminum-zinc alloys according to chemical composition.
1. Pure aluminum products Pure aluminum is classified into two categories, smelting products and pressure-processed products. The former is represented by the chemical composition Al, and the latter is expressed by Hanyu Pinyin LG (aluminum, industrial).
2. Pressure Machining Aluminium alloys aluminum pressure processing products are divided into rust-proof (LF), hard (LY), forging (LD), superhard (LC), coating (LB), special (LT) and brazing ( LQ) and other seven categories. The state of commonly used aluminum alloy materials is three kinds of annealing (M fire), hardening (Y), and hot rolling (R).
3. Aluminum Aluminium and aluminum alloys are processed into materials of a certain shape and are collectively called aluminum materials, including plates, strips, foils, tubes, rods, wires, and the like.
4. Cast aluminum alloy casting aluminum alloy (ZL) According to the composition of the major elements other than aluminum, silicon, copper, magnesium, zinc is divided into four categories, code numbers are respectively 100,200,300,400.
5. High-strength aluminum alloy High-strength aluminum alloy refers to aluminum alloys whose tensile strength is greater than 480 megapascals, and is mainly hard aluminum alloys, superhard aluminum alloys, and cast alloys in press-processed aluminum alloys.
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