A rolling composite process of aluminum-clad steel pipe material

Abstract

The invention provides a rolling compositing process of aluminum-clad steel pipe material. According to the process, aluminum alloy material and carbon steel material are composited well; production cost is low, and composting is effective. According to the technical scheme, the process is characterized in that the carbon steel material and the aluminum alloy material are prepared respectively, the carbon steel material and the aluminum alloy material are stacked and fed into a rolling mill to be rolled, and the aluminum-clad steel pipe material is obtained. Rolling deformation is controlled ranging from 60% to 70% during cold rolling.

Description

technical field

[0001] The invention relates to the field of multi-metal composites, in particular to the field of preparation of aluminum-coated steel pipe materials used for manufacturing air-cooled base pipes, and in particular to a rolling composite process of aluminum-coated steel pipe materials. Background technique

[0002] With the deepening of energy saving and emission reduction, the cooling system of thermal power generation adopts air cooling technology. Air coolers have two types of cooling: direct cooling and indirect cooling. Among them, indirect cooling has a large initial investment but low maintenance costs in the later period. Direct cooling has a small initial investment and high later maintenance costs. The air cooler using indirect cooling uses aluminum tubes and aluminum alloy fins. It is connected by mechanical expansion tubes, while the direct cooling air cooler uses steel pipes and aluminum alloy fins connected together by welding metallurgy, so the...

Examples

Embodiment 1

[0011] A rolling composite process for aluminum-clad steel pipe materials, which prepares carbon steel materials with a thickness of 3.5mm and aluminum alloy materials with a thickness of 0.27mm, and then sends the above-mentioned carbon steel materials and aluminum alloy materials to the cold rolling mill after lamination An aluminum-clad steel pipe material with a thickness of 1.125 mm was obtained, and the rolling deformation was controlled to be 70% during cold rolling, and the aluminum alloy material was 1050 aluminum alloy.

Embodiment 2

[0013] A rolling composite process for aluminum-clad steel pipe materials, which prepares carbon steel materials with a thickness of 4.0mm and aluminum alloy materials with a thickness of 0.25mm, and then laminates the above-mentioned carbon steel materials and aluminum alloy materials and sends them into a rolling mill for cold rolling to obtain The thickness is 1.39mm aluminum-clad steel pipe material, the controlled rolling deformation is 65% during cold rolling, and the aluminum alloy material is 1050 aluminum alloy.

Embodiment 3

[0015] A rolling composite process for aluminum-clad steel pipe materials, which prepares carbon steel materials with a thickness of 3.7mm and aluminum alloy materials with a thickness of 0.3mm, and then sends the above-mentioned carbon steel materials and aluminum alloy materials to the cold rolling mill after lamination The aluminum-clad steel pipe material with a thickness of 1.72 mm was obtained, and the rolling deformation was controlled to be 65% during cold rolling, and the aluminum alloy material was 1050 aluminum alloy.

technical field

[0001] The invention relates to the field of multi-metal composites, in particular to the field of preparation of aluminum-coated steel pipe materials used for manufacturing air-cooled base pipes, and in particular to a rolling composite process of aluminum-coated steel pipe materials. Background technique

[0002] With the deepening of energy saving and emission reduction, the cooling system of thermal power generation adopts air cooling technology. Air coolers have two types of cooling: direct cooling and indirect cooling. Among them, indirect cooling has a large initial investment but low maintenance costs in the later period. Direct cooling has a small initial investment and high later maintenance costs. The air cooler using indirect cooling uses aluminum tubes and aluminum alloy fins. It is connected by mechanical expansion tubes, while the direct cooling air cooler uses steel pipes and aluminum alloy fins connected together by welding metallurgy, so the...

Examples

Embodiment 1

[0011] A rolling composite process for aluminum-clad steel pipe materials, which prepares carbon steel materials with a thickness of 3.5mm and aluminum alloy materials with a thickness of 0.27mm, and then sends the above-mentioned carbon steel materials and aluminum alloy materials to the cold rolling mill after lamination An aluminum-clad steel pipe material with a thickness of 1.125 mm was obtained, and the rolling deformation was controlled to be 70% during cold rolling, and the aluminum alloy material was 1050 aluminum alloy.

Embodiment 2

[0013] A rolling composite process for aluminum-clad steel pipe materials, which prepares carbon steel materials with a thickness of 4.0mm and aluminum alloy materials with a thickness of 0.25mm, and then laminates the above-mentioned carbon steel materials and aluminum alloy materials and sends them into a rolling mill for cold rolling to obtain The thickness is 1.39mm aluminum-clad steel pipe material, the controlled rolling deformation is 65% during cold rolling, and the aluminum alloy material is 1050 aluminum alloy.

Embodiment 3

[0015] A rolling composite process for aluminum-clad steel pipe materials, which prepares carbon steel materials with a thickness of 3.7mm and aluminum alloy materials with a thickness of 0.3mm, and then sends the above-mentioned carbon steel materials and aluminum alloy materials to the cold rolling mill after lamination The aluminum-clad steel pipe material with a thickness of 1.72 mm was obtained, and the rolling deformation was controlled to be 65% during cold rolling, and the aluminum alloy material was 1050 aluminum alloy.