A kind of heat treatment method of wear-resistant aluminum alloy
A heat treatment method and aluminum alloy technology, which is applied in the field of aluminum alloy, can solve the problems of low wear resistance and limited wide application, and achieve the effect of low cost and simple forming process
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Embodiment 1
[0042] Example 1 Al-12Si-10Mg-1.3Fe-0.5Mn-0.5Cr-0.05Sr alloy heat treatment
[0043] The raw materials used in this embodiment include Fe-rich aluminum alloy, pure aluminum, pure Mg, Al-20Si, Al-10Cr, Al-10Mn, Al-10Sr master alloy. The forming method is as follows: first by weight percentage: Si: 12%, Mg: 10%, Fe: 1.3%, Mn: 0.5%, Cr: 0.5%, Sr: 0.05%, and the balance is Al. Among them, Fe is prepared by using Fe-rich recycled A356 aluminum alloy, and the insufficient amount of Al is prepared by using pure aluminum. Melt Fe-rich recycled A356 aluminum, pure aluminum, Al-20Si, Al-10Sr alloy at 750°C, and then add the weighed pure Mg to the melt when it is melted to a semi-solid state, and then manually Stir to make the ingredients uniform, heat up to 775°C, and hold for 10 minutes. Use 2# refining agent (chemical composition contains Na 2 SiF 6 , KCl, Na 3 AlF 6 And C 2 Cl 6 . ) Refining, standing for 5 minutes, keeping the temperature of the molten metal at 775°C, removing the s...
Embodiment 2
[0047] Example 2 Al-10Si-12Mg-1.3Fe-0.6Mn-0.4Cr-0.05Sr alloy heat treatment
[0048] The raw materials used in this embodiment include Fe-rich aluminum alloy, pure aluminum, pure Mg, Al-20Si, Al-10Cr, Al-10Mn, Al-10Sr master alloy. The forming method is as follows: first by weight percentage: Si: 10%, Mg: 12%, Fe: 1.3%, Mn: 0.6%, Cr: 0.4%, Sr: 0.05%, and the balance is Al. Among them, Fe is prepared by using Fe-rich recycled A356 aluminum alloy, and the insufficient amount of Al is prepared by using pure aluminum. Melt Fe-rich recycled A356 aluminum, pure aluminum, Al-20Si, Al-10Sr alloy at 750°C, and then add the weighed pure Mg to the melt when it is melted to a semi-solid state, and then manually Stir to make the ingredients uniform, heat up to 770°C, and keep for 20 minutes. Refining with a refining agent, standing for 5 minutes, keeping the temperature of the molten metal at 770°C, removing the slag and pouring it into a metal mold that has been preheated to 190°C, and sol...
Embodiment 3
[0052] Example 3 Heat treatment state of Al-12Si-10Mg-1.6Fe-0.4Mn-0.6Cr-0.1Sr alloy
[0053] The raw materials used in this embodiment include Fe-rich secondary aluminum alloy, pure aluminum, pure Mg, Al-20Si, Al-10Cr, Al-10Mn, Al-10Sr master alloy. The forming method is as follows: first by weight percentage: Si: 12%, Mg: 10%, Fe: 1.6%, Mn: 0.6%, Cr: 0.4%, Sr: 0.1%, and the balance is Al. Among them, Fe is prepared by using Fe-rich recycled A356 aluminum alloy, and the insufficient amount of Al is prepared by using pure aluminum. Melt Fe-rich recycled A356 aluminum, pure aluminum, Al-20Si, Al-10Sr alloy at 750°C, and then add the weighed pure Mg to the melt when it is melted to a semi-solid state, and then manually Stir to make the ingredients uniform, heat up to 780°C and keep for 20 minutes. Refining with a refining agent, standing for 5 minutes, keeping the temperature of the molten metal at 780°C, removing the slag and pouring it into a metal mold that has been preheated t...
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