Hvilke metalelementer er indeholdt i bearbejdningen af ​​luftfartsdele


7015 aluminum alloy, U.S. deformed aluminum and aluminum alloys. Aluminum alloys are divided into two categories: cast aluminum alloys, which are used in the cast state; deformed aluminum alloys, which can withstand pressure processing and have higher mechanical properties than the cast state. It can be processed into various forms and specifications of aluminum alloy materials. It is mainly used in the manufacture of aviation equipment, daily living goods, doors and windows for construction, etc. ●Standard comparison: Alcoa (AA) 7015 ●Chemical composition: Al Al (min.): Residual Si: ≤0.20 Fe Fe: ≤0.30 Cu Cu: 0.06--0.15 Mn Mn: ≤0.10 Mg Mg: 1.3--2.1 Cr Cr -2.1 Chromium Cr: ≤0.15 Zinc Zn: 4.6--5.2 Zirconium Zr: 0.10--0.20 Titanium Ti: ≤0.10 Other elements not specified: each: ≤0.05; total: ≤ 0.156061 aluminum alloy is a high quality aluminum alloy produced by heat treatment pre-stretching process, its strength cannot be compared with 2XXX series or 7XXX series, but its magnesium and silicon alloy characteristics, has excellent processing performance, excellent welding characteristics and plating, good corrosion resistance, high toughness and no deformation after processing, dense material without defects and easy to polish, easy to color film, excellent oxidation effect, and other excellent characteristics. The main alloying elements of 6061 aluminum alloy are magnesium and silicon, and form Mg2Si phase. If it contains a certain amount of manganese and chromium, it can neutralize the bad effect of iron; sometimes a small amount of copper or zinc is added to improve the strength of the alloy without making its corrosion resistance significantly reduced; there is a small amount of copper in the conductive material to offset the bad effect of titanium and iron on the conductivity; zirconium or titanium can refine the grain and control the recrystallization organization; in order to improve the machinability, lead and bismuth can be added. The main alloying elements in 6061 aluminum alloy are magnesium and silicon, which have medium strength, good corrosion resistance, weldability and good oxidation effect. Its main chemical composition is (mass fraction of each element): Copper Cu :0.15--0.4 Manganese Mn :0.15 Magnesium Mg :0.8--1.2 Zinc Zn :0.25 Chromium Cr :0.04 ---0.35 Titanium Ti :0.15 Silicon Si :0.4--0.8 Iron Fe :0.7 Aluminum Al :remainder