According to the data of “China Aluminum Industry Operation Status and Investment Direction Analysis Report 2020-2026” released by Wise Research Consulting.
China is a major producer and consumer of aluminium, with the world’s largest production of alumina and primary aluminium.
China’s alumina and primary aluminium production in 2019 was 72.742 million tonnes and 35.043 million tonnes respectively, the production volume is increasing year by year.
From the industry outlook analysis, aluminium still occupies a huge demand in the market, midstream aluminium production and deep processing are the core of the industry chain.
The main methods of manufacturing aluminium are: casting, rolling, extrusion.
6 series aluminium alloys are hard aluminium alloys with good corrosion resistance, medium strength and excellent hot workability, thus a large number of application in: main grades 6061, 6063 (domestic) ADC12 (Japan).
Applications: 3C products, Home appliances, Automotive, Aerospace, etc.
From the industry market, models such as ADC12, 6063, DM32 and 6061 are no longer able to meet market requirements for the following reasons.
1.ADC12, die-casting aluminium, Nonoxidizing anode, other mechanical parameters: tensile strength: 230MPa, yield strength: 170MPa, post-extension: 1%, hardness 80HBS, rotational bending fatigue strength: 145MPa.
2.6063, alumina, not die-casting, mechanical parameters: tensile strength σb (MPa): ≥ 205, elongation stress σp0.2 (MPa): ≥ 170, elongation δ5 (%): ≥ 7
3.DM32, poor fluidity, die-casting moulds require electroplating or plating factory technology, the parameters of die-casting processing need to adjust, The anode can only spray 120 sand, finer sand will not be able to complete the colouring, low hardness, high temperature of die-casting above 700 ℃, oxidation colour difference.
4.6061, although it can be die-casted and oxidized, but it has a tendency to be warm, tensile strength σb (MPa): 205 MPa or more, yield strength under compression 55.2 MPa, coefficient of elasticity 68.9 GPa, ultimate bending strength 228 MPa