A kind of coffee machine liner and molding process and coffee machine
A technology of coffee machine and liner, which is applied in the field of coffee machine liner and molding process and coffee machine, and can solve the problems of poor thermal conductivity and mechanical properties of the liner
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Embodiment 1
[0031] An inner tank of a coffee machine, which has a cylindrical body of aluminum alloy, the wall thickness of which is 0.5mm, and the components of the aluminum alloy:
[0032] Si: 0.6%, Fe: 0.05%, Mg: 1.1%, Mn: 0.15%, Zn: 1.5%, Cr: 0.05%, Nb: 0.03%, W: 0.02%, C: 0.2%, Ti, 0.1%, B. 0.03%, Ni: 0.01%, and the balance is aluminum.
[0033] Adjust the content of Si, Mg, Fe, Mn, improve processing performance and thermal conductivity by means of dispersion strengthening, add rare earth elements, combine Fe and Si solid-dissolved in the Al matrix to form compounds, reduce solid solution, and at the same time By adding rare earth elements to refine the grains, improve processing performance, plasticity and thermal conductivity, among which C element mainly exists in the form of graphite flakes in aluminum alloys to improve thermal conductivity, and optimize the composition at the same time, adding Cr, W, Ti and other elements, among which The combination of Al, Ti, and B improves ...
Embodiment 2
[0044] An inner tank of a coffee machine, which has a cylindrical body of aluminum alloy, the wall thickness of which is 0.3mm, and the aluminum alloy components:
[0045] Si: 0.8%, Fe: 0.1%, Mg: 1.5%, Mn: 0.26%, Zn: 1.8%, Cr: 0.07%, Nb: 0.05%, W: 0.04%, C: 0.5%, Ti, 0.3%, B, 0.1%, Ni: 0.02%, and the balance is aluminum.
[0046] The molding process of the liner, including:
[0047] 1) According to the above-mentioned aluminum alloy component batching, melt casting is carried out. Firstly, charge materials other than Si, Mn, and C are put into the melting furnace for heating and melting, and Mg and Zn are wrapped with aluminum foil and finally added to the melting furnace. After melting, add 2 / 5 amount of covering agent to cover, the covering agent accounts for 1.2% of the charge, the covering agent composition: 40% soda, 25% glass, 5% limestone, 20% boron slag, 10% fluorite, continue to heat up to 795°C, keep it for 20 minutes, then add Al-Si, Al-Mn master alloy and graphit...
Embodiment 3
[0057] An inner container of a coffee machine, which has a cylindrical body of aluminum alloy, the wall thickness of which is 0.3mm, and the aluminum alloy components:
[0058] Si: 0.7%, Fe: 0.05%, Mg: 1.4%, Mn: 0.2%, Zn: 1.5%, Cr: 0.05%, Nb: 0.04%, W: 0.02%, C: 0.4%, Ti, 0.25%, B. 0.08%, Ni: 0.01%, and the balance is aluminum.
[0059] The molding process of the liner, including:
[0060] 1) According to the above-mentioned aluminum alloy component batching, melt casting is carried out. Firstly, charge materials other than Si, Mn, and C are put into the melting furnace for heating and melting, and Mg and Zn are wrapped with aluminum foil and finally added to the melting furnace. After melting, add 2 / 5 amount of covering agent to cover, the covering agent accounts for 1.2% of the charge, the covering agent composition: 40% soda, 25% glass, 5% limestone, 20% boron slag, 10% fluorite, continue to heat up to 785 DEG C, add Al-Si, Al-Mn master alloy and graphite flake after keep...
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