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Preparation method for composite layer metal pipeline

A metal pipe and composite layer technology, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve the problems of instability, weak bonding, low bonding strength, etc., and achieve saving of work costs, low composite temperature, rolling Small reduction effect

Inactive Publication Date: 2013-01-16
夏雨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the cold rolling composite method has been used in industrial production as early as the 1950s, it has not achieved ideal results when used in the production of copper / steel composite materials. The reason is that the matrix and oxides of copper and its alloys have good properties. During cold rolling and compounding, although the billet is cleaned by a wire brush and the deformation reaches 70% in the first pass, no cracks appear on the surface. As a result, the billet is squeezed into the crack of the steel with a thin oxide film on the original surface and steel Composite (to further increase the amount of deformation in the first pass and be limited by the capacity of the rolling mill), so the combination is very fragile, the combination strength is low and unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1) Surface cleaning

[0035] Select a steel plate with a thickness of 2-2.5mm and a copper plate with a thickness of 1-1.5mm suitable for the processing area, clean the surface of the steel plate and copper plate, soak in 5% NaOH aqueous solution at 80°C for 20min, and then use 10%HCl aqueous acid Wash for about 10 minutes, and finally use a wire brush to clean the scale on the surface to be compounded. The wire brush should be washed with alkali before use;

[0036] 2) Texture treatment

[0037] Use a grinding machine to longitudinally grind the metal surface on the surface treated in step 1), use an abrasive belt of model P100 to grind the surface of the steel plate to be compounded, and use an abrasive belt of model P80 to polish the surface of the copper plate to be compounded, so that the steel plate The surface roughness is 75μm, and the copper surface roughness is 85μm;

[0038] 3) Spray the bonding layer

[0039] By dipping or spraying, a layer of 400°C alloy...

Embodiment 2

[0051] 1) Surface cleaning

[0052] Select a steel plate with a thickness of 2-2.5mm and a copper plate with a thickness of 1-1.5mm suitable for the processing area, clean the surface of the steel plate and copper plate, soak in 8% NaOH aqueous solution at 80°C for 20min, and then use 10%HCl aqueous acid Wash for about 10 minutes, and finally use a wire brush to clean the scale on the surface to be compounded. The wire brush should be washed with alkali before use;

[0053] 2) Texture treatment

[0054] Use a grinding machine to longitudinally grind the metal surface on the surface treated in step 1), use an abrasive belt of model P100 to grind the surface of the steel plate to be compounded, and use an abrasive belt of model P80 to polish the surface of the copper plate to be compounded, so that the steel plate The surface roughness is 85μm, and the copper surface roughness is 95μm;

[0055] 3) Spray the bonding layer

[0056] By immersion plating or spraying, a layer of a...

Embodiment 3

[0068] 1) Surface cleaning

[0069] Select a steel plate with a thickness of 2-2.5mm and a copper plate with a thickness of 1-1.5mm suitable for the processing area, clean the surface of the steel plate and copper plate, soak in 10% NaOH aqueous solution at 80°C for 20min, and then use 10%HCl aqueous acid Wash for about 10 minutes, and finally use a wire brush to clean the scale on the surface to be compounded. The wire brush should be washed with alkali before use;

[0070] 2) Texture treatment

[0071] Use a grinding machine to longitudinally grind the metal surface on the above-mentioned surface treated in step 1), use an abrasive belt of model P100 to grind the surface of the steel plate to be compounded, and use an abrasive belt of model P80 to polish the surface of the copper plate to be compounded, so that the steel plate The surface roughness is 95μm, and the copper surface roughness is 105μm;

[0072] 3) Spray the bonding layer

[0073] By dipping or spraying, a la...

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Abstract

The invention relates to a preparation method for a composite layer metal pipeline, which comprises the following steps of: cleaning a surface, carrying out texturing treatment, spraying a combination layer, rolling, annealing, and welding rolled steel to form a pipeline; before rolling, respectively plating one layer of alloy coating on the to-be-compounded surface of a steel plate and a copper plate in a mode of immersion plating or spraying, wherein the thickness of the alloy coating is 4-8mu m, and the alloy coating comprises the following ingredients: 6-8 parts by weight of Zr, 25-50 parts by weight of Zn, 5-30 parts by weight of Al, 10-40 parts by weight of Fe, 0.5-1 part by weight of Si and 0.4-0.8 parts by weight of Mo. The preparation method has the beneficial effects that the direct associative property of the steel plate and the copper plate is good due to the fact that the combination layer of the above proportion is adopted. In addition, the composite temperature is low, the rolling reduction is smaller, and the working cost is saved. The composite copper and steel material prepared with the method disclosed by the invention has the advantages of high strength, high ductility and toughness and excellent stress corrosion resistance.

Description

technical field [0001] The invention relates to a preparation method of a composite layer metal composite material, in particular to a preparation method of a composite layer metal pipeline. Background technique [0002] As the main component of materials, metal materials play a leading role in production and application. However, the progress of science and technology has higher and higher requirements on the performance of metal materials, and a single metal material can no longer meet these needs. Moreover, in production practice, very expensive non-ferrous metals and other rare metal materials must be used in order to meet the needs of manufacturing special engineering structure performance. In order to maximize the performance of metal materials, one of the methods is to combine materials with different properties to make composite materials. [0003] Copper / steel composite materials not only have the unique properties of copper, but also have the strength and mechani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/14B21B1/38B21B37/00C21D1/26C21D9/52C23C30/00
Inventor 夏雨
Owner 夏雨
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