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High-strength aluminum alloy composite plate for surface plate of brazing honeycomb plate, core material, wrapping layer and surface material

A composite plate and aluminum alloy technology, which is applied in metal processing, welding equipment, metal processing equipment, etc., can solve the problems of high cost, increased production cost, and low efficiency, and achieve the effects of reducing brazing costs, increasing strength, and increasing strength

Inactive Publication Date: 2017-05-31
WUXI YINBANG DEFENSE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current vacuum brazing equipment is expensive and inefficient, which will greatly increase the production cost

Method used

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  • High-strength aluminum alloy composite plate for surface plate of brazing honeycomb plate, core material, wrapping layer and surface material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An aluminum alloy composite plate was prepared with a thickness of 1.2 mm and an alloy state of annealed state. Among them, the leather material is made of 4043 aluminum alloy, the thickness of the leather material is 60 μm, and the mass content of Si is 4.5%. The first cladding layer and the second cladding layer are made of 1050+Si aluminum alloy, and the mass content of Si is 0.75%. The cladding thickness is 50 μm; the core material is 6061 aluminum alloy, the melting temperature range is 582-652° C., and the thickness is 1.04 mm. Simulated brazing was performed on the aluminum alloy composite plate, the carrier gas brazing temperature was 570 °C, the heat preservation was 10 min, and the protective atmosphere was nitrogen. The yield strength of the brazed composite panel is 110MPa, while the yield strength of the common 3-series aluminum alloy composite panel is only 40-60MPa after brazing, so the strength of the brazed aluminum honeycomb panel can be greatly improv...

Embodiment 2

[0028] An aluminum alloy composite plate was prepared with a thickness of 1.0mm and the alloy state was annealed. Among them, the leather material is made of 4045 aluminum alloy, the mass content of Si is 10%, and the thickness of the leather material is 90 μm; the first cladding layer and the second cladding layer are made of 1050+Si aluminum alloy, and the mass content of Si is 0.85%. The cladding thickness is 60 μm; the core material is 6063 aluminum alloy, the melting temperature range is 615-655 ° C, and the thickness is 0.79 mm. The simulated brazing of the aluminum alloy composite plate is carried out, the carrier gas brazing temperature is 605 ° C, and the holding time is 15min, the protective atmosphere is nitrogen. The yield strength of the composite plate after brazing is 123MPa, while the yield strength of the ordinary 3-series aluminum alloy composite plate after brazing is only 40-60MPa, so the strength of the brazed aluminum honeycomb panel can be greatly improv...

Embodiment 3

[0030] An aluminum alloy composite plate was prepared with a thickness of 0.8mm and the alloy state was annealed. Among them, the leather material is made of 4343 aluminum alloy, the mass content of Si is 8%, and the thickness of the leather material is 40 μm; the first cladding layer and the second cladding layer are made of 1050+Si aluminum alloy, and the mass content of Si is 0.80%. The cladding thickness is 50 μm; the core material is 6151 aluminum alloy, the melting temperature range is 588-650 ° C, and the thickness is 0.66 mm. The simulated brazing of the aluminum alloy composite plate is carried out, the carrier gas brazing temperature is 575 ° C, and the holding time is 8min, the protective atmosphere is nitrogen. The yield strength of the composite plate after brazing is 105MPa, while the yield strength of the ordinary 3-series aluminum alloy composite plate after brazing is only 40-60MPa, so the strength of the brazed aluminum honeycomb panel can be greatly improved...

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Abstract

The invention relates to a high-strength aluminum alloy composite plate for a surface plate of a brazing honeycomb plate, a core material, wrapping layers and a surface material. The high-strength aluminum alloy composite plate comprises the surface material, a first wrapping layer, the core material and a second wrapping layer, which are overlapped in sequence, wherein the thickness of the composite plate is 0.5-2.5 mm; the surface material is a 4-series aluminum alloy; the mass content of Si is 4.5-11%; the first wrapping layer and the second wrapping layer are both made of a 1050 aluminum alloy with an Si element; the mass content of Si is 0.7-0.9%; the core material is a 6-series aluminum alloy; and the solidus temperature of the core material is higher than or equal to 580 DEG C. Due to adoption of the high-strength aluminum alloy composite plate for gas carrier brazing, the core material, the wrapping layer and the surface material, the strength can be maintained when the weight of the composite plate can be reduced, in addition, the surface plate of an Mg-containing aluminum honeycomb plate can be applicable to gas carrier brazing, the production efficiency of brazing can be improved, and the production cost can be lowered.

Description

technical field [0001] The invention mainly relates to the field of brazing honeycomb panels, in particular to high-strength aluminum alloy composite panels, core materials, cladding layers and skin materials for brazing honeycomb panel panels. Background technique [0002] Due to a series of advantages such as light weight, high strength, high rigidity, good stability, heat and sound insulation, aluminum honeycomb panels have been widely used in rail transit, construction, ships, aircraft and other fields. The honeycomb panel is composed of a panel and a honeycomb core. The traditional aluminum honeycomb panel is made by bonding the panel and the honeycomb core. Its strength, service life and allowable working environment are largely limited by the performance of the adhesive. In the working environment of high humidity, excessive vibration, high or low temperature, the panel is easy to degumming, resulting in a decrease in flat tensile strength and peel strength. The braz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/00B23K101/18B23K103/10
CPCB23K1/0008B23K2101/18B23K2103/10
Inventor 宋友宝吕金明段海龙严安
Owner WUXI YINBANG DEFENSE TECH CO LTD
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