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Processing technique of aluminum-clad steel pipe material

A processing technology and technology of aluminum alloy materials, applied in metal rolling and other directions, can solve problems such as aluminum layer falling off

Inactive Publication Date: 2014-02-26
YINBANG CLAD MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above problems, the present invention provides a processing technology of aluminum-clad steel pipe material, which can solve the problem that the existing aluminum-clad steel pipe is prone to aluminum layer falling off in the process of brazing with aluminum alloy fins, and ensure the brazing of aluminum-clad steel pipe. Solderability

Method used

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Embodiment 1

[0007] A processing technology for aluminum-clad steel pipe materials, in which carbon steel and aluminum alloy materials are rolled and compounded in proportion to form an aluminum-steel composite material, and the aluminum-steel composite material is subjected to heat treatment and annealing, and the aluminum-steel composite material is combined during the heat treatment and annealing The heating temperature of the material is 500°C, and the heat preservation is 20 hours, and then the aluminum-steel composite material is finished, cut and packaged as a finished product.

Embodiment 2

[0009] A processing technology for aluminum-clad steel pipe materials, in which carbon steel and aluminum alloy materials are rolled and compounded in proportion to form an aluminum-steel composite material, and the aluminum-steel composite material is subjected to heat treatment and annealing, and the aluminum-steel composite material is combined during the heat treatment and annealing The heating temperature of the material is 550°C, and the heat preservation is for 18 hours, and then the aluminum-steel composite material is finished, cut and packaged as a finished product.

Embodiment 3

[0011] A processing technology for aluminum-clad steel pipe materials, in which carbon steel and aluminum alloy materials are rolled and compounded in proportion to form an aluminum-steel composite material, and the aluminum-steel composite material is subjected to heat treatment and annealing, and the aluminum-steel composite material is combined during the heat treatment and annealing The heating temperature of the material is 520° C., and the heat preservation is carried out for 22 hours, and then the aluminum-steel composite material is finished, cut and packaged as a finished product.

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Abstract

The invention provides a processing technique of aluminum-clad steel pipe material, solves the problem that aluminum coatings easily shed during brazing of existing aluminum-clad steel pipes and aluminum alloy fins, and ensures solderability of the aluminum-clad steel pipes. Carbon steel and aluminum alloy are proportionally rolled and composited into aluminum-steel composite, and the aluminum-steel composite is finished, slit and packaged into finished products. The processing technique is characterized in that after the carbon steel and the aluminum alloy are proportionally rolled and composited into the aluminum-steel composite, the aluminum-steel composite is thermally treated and annealed, the aluminum-steel composite is heated at the temperature of 500 DEG C-550 DEG C during annealing, and the temperature is held for 18-22 hours.

Description

technical field [0001] The invention relates to the field of multi-metal composite technology, in particular to the field of preparation technology of aluminum-coated steel pipe material used for manufacturing air-cooled base pipes, in particular to a processing technology of aluminum-coated steel pipe material. Background technique [0002] With the deepening of energy conservation and emission reduction, the cooling system of thermal power generation adopts air-cooling technology. Air coolers have two cooling forms: direct cooling and indirect cooling. The maintenance cost is high, but the heat dissipation efficiency is high. Air coolers using indirect cooling are connected by aluminum tubes and aluminum alloy fins through mechanical expansion; while air coolers using direct cooling are connected by welding steel pipes and aluminum alloy fins, while direct cooling technology The brazing metallurgical combination method is adopted, so the heat dissipation effect of the dir...

Claims

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Application Information

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IPC IPC(8): B21B1/38C21D1/26
Inventor 吕金明
Owner YINBANG CLAD MATERIAL
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