Preparation method of braze welding type metal honeycomb plate

A metal honeycomb and brazing technology, used in metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems of low strength, low cost, high specific strength, and achieve uniform solder, simple preparation method, and reliable welding quality. Effect

Inactive Publication Date: 2009-11-18
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a preparation method of a brazed metal honeycomb panel. The prepared product has high specific strength, high rigidity, heat insulation and sound insulation, and low cost. low level problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0009] Preparation of brazed honeycomb aluminum panels. The upper and lower panels 1 and 3 are brazed composite aluminum plates of 1 mm, and the honeycomb core 2 is brazed composite aluminum foil of 0.1 mm (the outer surface of the composite aluminum foil is 4xxx brazing alloy, the core part is 3xxx aluminum alloy, and the outer surface brazing filler metal The thickness ratio to the core material is 1:8:1), the brazing flux is Nocolok flux, heated to 560 ° C ~ 620 ° C, it can be made into a brazed honeycomb aluminum plate. The prepared brazed honeycomb aluminum plate weld seams are uniform and compact. According to the mechanical performance test, the flat compressive strength of the brazed honeycomb aluminum plate (84×84×21.40) is 48.1Mpa~52.0Mpa, the lateral compressive strength is 8.4MPa~10.46Mpa, and the mechanical performance is about 60% higher than that of the existing honeycomb aluminum plate of the same specification. %, production costs are reduced by 50%.

Embodiment example 2

[0011] Preparation of brazed honeycomb steel plates. The upper and lower panels 1 and 3 are made of 1mm composite steel plate covered with brass, the honeycomb core 2 is a 0.12mm composite steel foil covered with brass on both sides, the brazing flux is borax, and the honeycomb core 2 and the upper and lower panels 1, 3 Assembled in place, heated above the melting point of the brass filler metal, it can be made into a brazed honeycomb steel plate. The prepared brazed honeycomb steel plate has uniform and dense weld seam. According to the mechanical performance test, the flat compressive strength of the brazed honeycomb steel plate (84×84×20) is 439.68Mpa-465.2Mpa, and the lateral compressive strength is 90.46MPa-100.79Mpa.

Embodiment example 3

[0013] Preparation of brazed honeycomb titanium plates. The upper and lower panels 1 and 3 are made of 1mm composite titanium plate covered with zinc alloy, the honeycomb core 2 is 0.08mm composite titanium foil coated with zinc alloy on both sides, the flux is borax, the honeycomb core 2 and the upper and lower panels 1 3. Assemble it in place, heat it above the melting point of the zinc alloy solder, and then it can be made into a brazed honeycomb titanium plate. The prepared brazed honeycomb titanium plate has uniform and dense weld seams. According to the mechanical performance test, the flat compressive strength of the brazed honeycomb titanium plate (84×84×18) is 258.68Mpa-298.2Mpa, and the lateral compressive strength is 60.56MPa-72.48Mpa.

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Abstract

The invention relates to a preparation method of honeycomb plate, especially to the preparation method of braze welding type metal honeycomb plate. The invention comprises the following steps: (1) pre-processing the front and back panels, compounding a layer of welding flux with the melting point lower than that of the panel on the surface touching with the honeycomb core; (2) pre-processing the honeycomb core foil, compounding welding flux on the two side faces, and press-forming and cleaning, then assembling a series of formed honeycomb core foils to a honeycomb shape; and (3) assembling the front and back panels with the honeycomb core foils and braze welding into a whole. The product made in the invention has light weight, high strength, large rigidity, good stability, and isolates heat and noise without pollution; the invention overcomes the defects of irregularity of honeycomb core and low mechanical property of the current adhesive type honeycomb plate; besides, the invention simplifies the preparation technique and the operating means and obviously improves various properties, so the invention is fit for industrial production.

Description

technical field [0001] The invention relates to a preparation method of a honeycomb panel, in particular to a preparation method of a brazing metal honeycomb panel material. Background technique [0002] Due to a series of advantages such as light weight, high specific strength, high rigidity, good stability, heat and sound insulation, and no pollution, honeycomb panels have been widely used in aerospace, aircraft, trains, ships, construction and other fields. At present, the common honeycomb panels at home and abroad are adhesive honeycomb panels, and the connection method is physical combination. Its strength, service life and allowable working environment are largely restricted by the performance of the adhesive. For example, in the working environment with high humidity, frequent vibration, high or low temperature, the panel is easy to degumming, resulting in the failure of the load during use, which is far from the yield limit of the material used, and the mechanical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/00
Inventor 孙勇彭明军刘杨
Owner KUNMING UNIV OF SCI & TECH
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