Horizontal-flow porous pipe for heat exchanger and manufacturing method of the horizontal-flow porous pipe
A technology of a heat exchanger and a manufacturing method, which is applied in the field of manufacture of advection porous tubes for heat exchangers and the above-mentioned advection porous tubes for heat exchangers, can solve the problems of poor welding and poor corrosion resistance of the advection porous tubes, and achieve fine grain size , to ensure the surface quality and internal quality, the effect of good corrosion resistance
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Embodiment 1
[0016] 1) Add the raw materials prepared according to the following weight ratios into the melting furnace, and use the continuous casting and rolling method to produce qualified round aluminum rod coils. The components and weight ratios of the above raw materials are: iron 0.10 %, silicon 0.05%, copper 0.42%, manganese 0.02%, chromium 0.02%, zinc 0.03%, titanium 0.01%, scandium 0.05%, and the rest is aluminum; the melting temperature in the melting furnace is controlled at 730°C, and the hydrogen content 0.13ml / 100gAl, the temperature of the molten aluminum in the crystallization wheel is controlled at 690°C, and the inner and outer water cooling areas are adjusted to ensure that the round aluminum rod leaves the crystallization wheel at 512°C.
[0017] 2) Straighten the round aluminum rod coil through the straightening device.
[0018] 3) Put the straightened round aluminum rod through the lye washing tank first, and clean it with 8% NaOH solution with a mass ratio of 70°C; ...
Embodiment 5
[0025] 1) Add the raw materials prepared according to the following weight ratios into the melting furnace, and use the continuous casting and rolling method to produce qualified round aluminum rod coils. The components and weight ratios of the above raw materials are: iron 0.15 %, silicon 0.06%, copper 0.60%, chromium 0.03%, magnesium 0.01%, zinc 0.02%, titanium 0.01%, neodymium 0.07%, and the rest is aluminum; the melting temperature in the melting furnace is controlled at 720°C, and the hydrogen content 0.15ml / 100gAl, the temperature of the molten aluminum in the crystallization wheel is controlled at 700°C, and the inner and outer water cooling areas are adjusted to ensure that the round aluminum rod leaves the crystallization wheel at 500°C.
[0026] 2) Straighten the round aluminum rod coil through the straightening device.
[0027] 3) Put the straightened round aluminum rod through the lye washing tank first, and clean it with a 9% NaOH solution with a mass ratio of 65°...
Embodiment 8
[0034] 1) Add the raw materials prepared according to the following weight ratios into the melting furnace, and use the continuous casting and rolling method to produce qualified round aluminum rod coils. The components and weight ratios of the above raw materials are: iron 0.18 %, silicon 0.12%, copper 0.53%, manganese 0.01%, magnesium 0.02%, zinc 0.03%, titanium 0.02%, samarium 0.10%, and the rest is aluminum; the melting temperature in the melting furnace is controlled at 740°C, and the hydrogen content 0.14ml / 100gAl, the temperature of the molten aluminum in the crystallization wheel is controlled at 710°C, and the inner and outer water cooling areas are adjusted to ensure that the round aluminum rod leaves the crystallization wheel at 515°C.
[0035]2) Straighten the round aluminum rod coil through the straightening device.
[0036] 3) Put the straightened round aluminum rod through the lye washing tank first, and clean it with a 9.5% NaOH solution with a mass ratio of 60...
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Abstract
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