Metallic materials with excellent brazing properties

A metal material and brazing technology, which is applied in the direction of metal material coating technology, metal layered products, metal processing equipment, etc., can solve the problem of not fully showing the excellent corrosion resistance of galvanized steel and the corrosion resistance of galvanized steel Function and other issues, to achieve the effect of simplifying the brazing process, good lubricity and corrosion resistance, and excellent corrosion resistance

Inactive Publication Date: 2017-02-15
刘建忠
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for the passivated galvanized steel sheet, in the actual application process, subsequent processing is required, such as stretching, lamination and brazing, etc. Corrosion resistance has a negative effect, and there are cases where the excellent corrosion resistance of galvanized steel cannot be fully expressed

Method used

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  • Metallic materials with excellent brazing properties
  • Metallic materials with excellent brazing properties

Examples

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Embodiment 1

[0018] This embodiment provides a metal material with excellent brazing properties. As an example, in this embodiment, No. 45 steel is used as the core material metal; a Sn-Pb-based solder foil layer is formed on one of its main surfaces , as an example, the solder selected here is HL600, and the thickness of the solder foil layer is 0.05 mm. And also form zinc phosphate film layer by conventional phosphate treatment method, and the adhesion amount of described zinc phosphate film layer is 20g / m 2 Then, the core material metal formed with a phosphate film layer is immersed in a passivation solution, wherein the temperature of the passivation solution is 80° C., and the treatment time is 4 to 6 minutes; the adhesion amount of the formed passivation film layer is about 5g / m 2 . The only difference between the samples and the comparative samples is the composition and / or content of the passivation solution.

[0019] Table 1 shows the composition of the passivation solution use...

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Abstract

The invention relates to a metal material with excellent soldering performance. The metal material is provided with a metal core material, wherein a Sn-Pb brazing filler metal foil layer is formed on one main surface of the metal core material, a phosphate film layer is formed on one main surface of the metal core material, and a passivating film layer is formed on the phosphate film layer. The metal material has good lubricating property and corrosion resistance, can ensure the metal material to have high strength after brazing, and also has excellent corrosion resistance after brazing, and no related follow-up treatment is required.

Description

technical field [0001] The invention relates to the technical field of metal materials, more specifically, the invention relates to a metal material with excellent brazing performance. Background technique [0002] Corrosion of steel materials occurs all the time. According to statistics, about 10% of steel products cannot be recycled each year due to corrosion. In order to prevent corrosion and reduce the huge loss caused by corrosion of steel materials, various anti-corrosion methods must be adopted. Hot-dip galvanizing treatment on the surface of steel is a commonly used treatment method. However, for galvanized steel sheets, surface passivation treatment is usually required. However, for the passivated galvanized steel sheet, in the actual application process, subsequent processing is required, such as stretching, lamination and brazing, etc. There is a negative effect on corrosion resistance, and there are cases where the excellent corrosion resistance of galvanized ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/04C23C22/23B23K1/20
Inventor 刘建忠
Owner 刘建忠
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