Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of sandwich structure of metal egg box

A sandwich structure, egg box technology, applied in metal processing equipment, metal processing, manufacturing tools, etc., can solve problems such as difficult forming, and achieve high performance, stable performance, and good interlayer bonding.

Active Publication Date: 2017-11-03
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem of difficulty in forming the existing egg box sandwich structure, the present invention provides a method for preparing a metal egg box sandwich structure. It is a titanium alloy and aluminum alloy egg box structure with complex shapes. At the same time, it solves the technical problem of difficult forming of titanium alloy and aluminum alloy egg box sandwiches, and has a high bonding strength between the diffusion connection interfaces.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of sandwich structure of metal egg box
  • A kind of preparation method of sandwich structure of metal egg box
  • A kind of preparation method of sandwich structure of metal egg box

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] A method for preparing a sandwich structure of a metal egg box, the sandwich structure of the metal egg box is plate-shaped or tubular, and the method for preparing the sandwich structure of the metal egg box comprises the following steps:

[0040] Step 1. Set a connection point 2 for connection and fixation on the surface of the metal foil 1 as the core material. On the surface of the metal foil 1, the area other than the connection point 2 is a non-connection area 3. In the non-connection area 3 Coating anti-soldering flux or anti-soldering foaming agent, wherein the anti-soldering-foaming agent is formed by adding a foaming agent such as titanium hydride to the anti-soldering flux;

[0041] Step 2. When the sandwich structure of the metal egg box is plate-shaped, the following steps are included:

[0042] Step 2.1a, assemble the metal foil 1 and the metal inner shell 4 and the metal outer shell 5 as shell materials, the metal inner shell 4 and the metal outer shell 5 a...

Embodiment 1

[0056] The preparation process scheme of the TC4 titanium alloy egg carton sandwich structure is as follows:

[0057] First, cut the TC4 titanium alloy foil (metal foil 1) with a thickness of 0.2mm and the TC4 titanium alloy sheet (metal inner shell 4 and metal outer shell 5) with a thickness of 10.8mm into the required size, and then perform surface cleaning. Process, where the foil is used as the core and the sheet is used as the face plate.

[0058] Step 1. Set a connection point 2 for connection and fixation on the surface of each layer of metal foil 1 as the core material. On the surface of the metal foil 1, the area other than the connection point 2 is a non-connection area 3. The connection area 3 is coated with solder stop flux. Solder stop flux can be coated on one side or both sides (that is, one side or two sides coating), and the connection points 2 are arranged in uniform rows and rows on the surface of the metal foil 1. When the two sides are coated During the ...

Embodiment 2

[0065] The preparation process scheme of the plate-like sandwich structure of aluminum alloy egg box is as follows:

[0066] First, cut the aluminum alloy foil (metal foil 1) and plate (metal inner shell 4 and metal outer shell 5) into the required size, and then perform surface chemical cleaning treatment, in which the foil is used as the core board and the plate is used as the panel .

[0067] Step 1. Set a connection point 2 for connection and fixation on the surface of each layer of metal foil 1 as the core material. On the surface of the metal foil 1, the area other than the connection point 2 is a non-connection area 3. The connection area 3 is coated with solder stop flux, and the connection point 2 is coated with solder flux. Solder stop flux can be coated on one side or both sides (that is, one side or two sides coating), and the connection points 2 are arranged in uniform rows and rows on the surface of the metal foil 1. When the two sides are coated During the pro...

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 provides a preparation method of a metal egg tray interlayer structure. The metal egg tray interlayer structure is plate-shaped or tubular, and the preparation method of the metal egg tray interlayer structure comprises the following steps: step 1, setting connecting points (2) for connection and fixation on the surface of metal foil (1) which is taken as the core material, wherein on the surface of the metal foil (1), the area without the connecting points (2) is a non-connection area (3); coating the non-connection area (3) with an antiwelding agent or antiwelding-foaming agent; the antiwelding-foaming agent is formed by adding foaming agents like titanium hydride into the antiwelding agent. The preparation method provided by the invention proposes that the metal egg tray interlayer structure can be prepared by adopting the diffusion welding and superplastic forming technology, therefore on one hand, the appearance of parts after forming, especially some titanium alloy and aluminum alloy egg tray structures with complex appearance, can be precisely controlled, on the other hand, the technical problem that the titanium alloy and aluminum alloy egg tray interlayer is difficult in forming is solved, and the relatively high bonding strength among diffusion bonding interfaces is further achieved.

Description

technical field [0001] The invention relates to the technical field of metal multifunctional topological structure forming, in particular to a method for preparing a sandwich structure of a metal egg box. Background technique [0002] The sandwich structure of titanium alloy egg carton is a kind of highly efficient porous structure, which has a good application prospect in the field of aerospace. The sandwich structure of titanium alloy egg box is mainly prepared by stamping method, that is, the egg box sandwich structure of the core is first formed by stamping method, and then the egg box and the panel are connected together by brazing method to prepare Egg carton sandwich structure. [0003] Abroad, U.S. Patent No. 4,893,743, published on January 16, 1990, adopts the SPF / DB process to prepare a hollow columnar sandwich structure. The process used in this patent is the SPF (Superplastic Forming) / DB (Diffusion Bonding) process, but The structure prepared was not an egg car...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B21D47/00B23K20/02B23K20/24B23K101/02B23K103/14B23K103/10
CPCB21D47/00B23K20/002B23K20/026B23K20/24B23K2101/02B23K2103/10B23K2103/14
Inventor 赵冰王耀奇李志强侯红亮韩秀全廖金华
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com