Brazed flat pipe composite aluminum strip for high-frequency welding, and manufacturing method of brazed flat pipe composite aluminum strip
A technology of high-frequency welding and manufacturing methods, which is applied in the field of aluminum foil calendering manufacturing, can solve problems such as uneven compounding rate, long production process, and large investment in equipment, and achieve the effects of short process flow, high production efficiency, and low investment
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Embodiment 1
[0041]A method for manufacturing a brazing flat tube composite aluminum strip for high-frequency welding, comprising the following steps:
[0042] 1. According to the mass percentage of Si 0.12%, Fe 0.41%, Cu 0.08%, Mn 1.1%, Ti 0.03%, and the balance is Al as the basic composition, the alloy raw materials are prepared for intermediate layer billet melting, casting and rolling to obtain 7.5mm Cast and rolled coils, namely alloy "3003";
[0043] According to the mass percentage of Si 7.6%, Fe 0.20%, Ti 0.02%, and the balance is Al as the basic composition, the alloy raw material is prepared for composite layer billet smelting, casting and rolling to obtain a 6.8mm cast rolling coil, that is, the alloy "4343";
[0044] According to the mass percentage of Fe+Si: 0.55%, Zn 1.1%, Ti 0.03%, and the balance is Al as the basic composition, the alloy raw material is prepared for smelting and casting of the water-contact layer billet to obtain a 6.9mm cast-rolled coil, that is, the alloy...
Embodiment 2
[0061] 1. According to the mass percentage of Si 0.10%, Fe 0.60%, Cu 0.05%, Mn 1.2%, Ti 0.02%, Zn 0.1%, and the balance is Al as the basic composition, the alloy raw materials are prepared for intermediate layer blank smelting and casting Rolled to obtain 7.5mm cast-rolled coil, that is, alloy "3003";
[0062] According to the mass percentage of Si 6.8%, Fe 0.25%, Cu 0.05%, Mn 0.05%, Ti 0.05%, and the balance is Al as the basic composition, the alloy raw material is prepared for composite layer billet smelting, casting and rolling to obtain 6.8mm casting and rolling Coil, namely alloy "4343";
[0063] According to the mass percentage of Cu 0.10%, Mn 0.10%, Zn 1.3%, Ti 0.02%, and the balance is Al as the basic composition, the alloy raw material is prepared for smelting and casting of the water-contact layer billet to obtain a 6.9mm cast-rolled coil, that is, the alloy "7072";
[0064] Other steps are with embodiment 1.
Embodiment 3
[0066] 1. According to the mass percentage of Si 0.30%, Fe 0.30%, Cu 0.25%, Mn 1.0%, Zn 0.05%, and the balance is Al as the basic composition, the alloy raw materials are prepared for intermediate layer billet melting, casting and rolling to obtain 7.5mm Cast and rolled coils, namely alloy "3003";
[0067] According to the mass percentage of Si 8.2%, Fe 0.05%, Cu 0.10%, Mn 0.10%, and the balance is Al as the basic composition, the alloy raw material is prepared for composite layer billet smelting, casting and rolling to obtain 6.8mm cast and rolled coils, that is, alloy "4343";
[0068] According to the mass percentage of Fe + Si 0.70%, Cu 0.05%, Mn 0.05%, Zn 0.80%, the balance is Al as the basic composition, the alloy raw material is prepared for smelting and casting of the water-contact layer billet to obtain a 6.9mm cast-rolled coil, Namely alloy "7072";
[0069] Other steps are with embodiment 1.
[0070] The finished product brazing flat tube composite aluminum strip m...
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