Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Aluminum and silicon-based brazing filler metal

A brazing material, aluminum-silicon technology, applied in welding/cutting medium/material, welding medium, metal processing equipment, etc., can solve the problem of aluminum alloy brazing and other problems, and achieve high cost performance, good performance and low melting temperature. Effect

Inactive Publication Date: 2014-05-14
SHINAN BRANCH OF QINGDAO BLUEPRINT CULTURE COMM
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the liquidus of this type of brazing filler metal is about 577°C, which is close to the solidus line of most aluminum alloys, and it cannot be brazed to aluminum alloys whose overburning temperature is lower than about 610°C.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] Below in conjunction with example the present invention will be further described:

[0007] An aluminum-silicon-based brazing filler metal is characterized in that, each composition of the brazing filler metal is in the following order by weight percentage (unit: wt%): Si3.5, Cu20, Zn25, Mn0.3, and the balance is Al; The melting temperature is 480-500°C, which belongs to the high-temperature brazing material for aluminum brazing; the Si can reduce the melting point of Al and improve the strength of the weld, and because Si can be modified, the toughness of the weld is good, and the folding The bending performance is strong; the Cu can reduce the melting point of Al and improve the fluidity of the solder, and Cu can form a solid solution with Al, so that the alloy can be solid-solution strengthened and the strength of the weld can be improved; the Zn will be in the grain Al-Zn solid solution is formed at the edge of the solder to form a solid-solution bond between the so...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to brazing filler metal, in particular to aluminum and silicon-based brazing filler metal. The aluminum and silicon-based brazing filler metal comprises Al, Si, Cu, Zn and Mn. The aluminum and silicon-based brazing filler metal has the advantages of low melting temperature, excellent wettability, flowability, plating property, machinability and performance, low manufacturing cost, high welded joint strength, corrosion resistance and cost performance and good toughness.

Description

technical field [0001] The invention relates to a brazing solder, especially an aluminum-silicon-based solder. Background technique [0002] Al-Si series solder has excellent brazing properties, color consistency with the base metal, coating and corrosion resistance, especially this series of solder can be modified, which greatly increases the solderability of the solder and the weld. Toughness and bending properties, combined with low cost, make it widely used. However, the liquidus of this series of brazing filler metals is about 577°C, which is close to the solidus of most aluminum alloys, and it cannot be brazed to aluminum alloys whose overburning temperature is lower than about 610°C. Contents of the invention [0003] The present invention aims to solve the above problems, and provides an aluminum-silicon-based solder, which adds copper, zinc and manganese elements on the basis of a simple aluminum-silicon-based solder, overcomes the high melting temperature of ord...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23K35/28
CPCB23K35/288
Inventor 郇文杰田海红王秀珍
Owner SHINAN BRANCH OF QINGDAO BLUEPRINT CULTURE COMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com