Tube shell material of aluminum-based assembly suitable for laser seal welding, assembly shell and packaging process of assembly shell

[0027] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0028] A shell material for aluminum-based components suitable for laser sealing and welding, comprising the following components: Fe: 0.2-0.5%, Si: 10-20%, Mg: 0.05-0.18%, Mn: 0.20-0.38%, Zn : 0.01-0.03%, the rest is Al and trace impurities.

[0029] 1. The effect of alloying elements on the properties of aluminum alloy:

[0030] 1. Silicon element

[0031] At the eutectic temperature of AlSi alloy system at 577°C, the maximum solubility of silicon in solid solution is 1.65%. The solubility decreases as the temperature decreases. Generally, such alloys cannot be strengthened by heat treatment. Aluminum-silicon alloys have excellent casting properties and corrosion resistance. If magnesium and silicon are added to aluminum at the same time to form an aluminum-magnesium-silicon alloy, the strengthening phas