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

A kind of preparation method of foamed magnesium sandwich panel

A sandwich panel and foamed magnesium technology, which is applied in chemical instruments and methods, metal rolling, lamination auxiliary operations, etc., can solve the problem that the thickness and core layer structure of the foamed aluminum sandwich panel are not easy to control, the production equipment is complicated, and the blank is lost. It can reduce the free boundary, reduce the manufacturing cost and improve the utilization rate.

Active Publication Date: 2019-10-25
NORTHEASTERN UNIV LIAONING
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above-mentioned technology for preparing foamed aluminum sandwich panels, due to the use of methods such as powder metallurgy and liquid phase casting and rolling, the production equipment is complicated, the process flow is long, the production cost is high, the blank loss rate is high, and the thickness and thickness of the foamed aluminum sandwich panels The core structure is also difficult to control

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 foamed magnesium sandwich panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of preparation method of foamed magnesium sandwich panel, carries out according to the following steps:

[0034] (1) With Al accounting for 8% by mass of the magnesium alloy used, and Ca accounting for 5% of the magnesium alloy by mass of the magnesium-aluminum-calcium ternary alloy as the substrate, it was melted at 750° C. and kept for 10 minutes to form a magnesium alloy melt body.

[0035] (2) Lower the temperature of the above-mentioned magnesium alloy melt to 600°C, first add the stabilizer silicon carbide powder to it, then add the foaming agent magnesium carbonate, and stir evenly, the stirring speed is 500r / min, and the stirring time is 5min, then The uniformly stirred magnesium alloy melt was rapidly cooled at a rate of 30° C. / s for 5 minutes to obtain a foamable preform. The stabilizer silicon carbide powder and the blowing agent magnesium carbonate need to be preheated at 400°C for 4 hours before adding to the magnesium melt. The silicon carbide powd...

Embodiment 2

[0039] A kind of preparation method of foamed magnesium sandwich panel, carries out according to the following steps:

[0040] (1) With Al accounting for 14% by mass percentage of the magnesium alloy used, and Ca accounting for 1% of the magnesium alloy by mass, the magnesium-aluminum-calcium ternary alloy is used as a substrate, melted at 700 ° C and kept for 20 minutes to form a magnesium alloy melt body.

[0041](2) The temperature of the above-mentioned magnesium alloy melt is lowered to 580°C, and uniformly mixed stabilizer alumina powder and foaming agent calcium carbonate are added thereto, and stirred evenly, the stirring speed is 2500r / min, and the stirring time is 2min, after that The uniformly stirred magnesium alloy melt was rapidly cooled at a rate of 15° C. / s for 10 minutes to obtain a foamable preform. The stabilizer alumina powder and the foaming agent titanium hydride need to be preheated at 450°C for 2 hours before adding to the magnesium melt. The alumina p...

Embodiment 3

[0045] A kind of preparation method of foamed magnesium sandwich panel, carries out according to the following steps:

[0046] (1) With Al accounting for 11% by mass percentage of the magnesium alloy used, Ca accounting for the magnesium aluminum calcium ternary alloy of 3% by mass percentage of the magnesium alloy used as the matrix, melting at 710 ° C and keeping it warm for 15 minutes to form a magnesium alloy melt body.

[0047] (2) Lower the temperature of the above-mentioned magnesium alloy melt to 585°C, first add foaming agent magnesium carbonate to it, and stir evenly, the stirring speed is 1500r / min, and the stirring time is 3min, and then the evenly stirred magnesium alloy melt Rapidly cool at a rate of 20°C / s for 8 minutes to obtain a foamable preform. The foaming agent magnesium carbonate needs to be preheated at 420°C for 3 hours before being added to the magnesium melt, and the amount of magnesium carbonate added is 5% of the mass percentage of the magnesium al...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of layered composite material preparation and discloses a preparation method of a foamed magnesium sandwich panel. The specific steps are as follows: firstly, the magnesium alloy is melted and kept warm; secondly, after the temperature of the obtained magnesium alloy melt is lowered to a certain value, a stabilizer and a foaming agent are added to it and stirred evenly, and then quenched for a period of time with a certain rapid cooling rate. time, to obtain a foamable preform; then, the foamable preform is embedded in an aluminum sleeve and rolled to obtain a foamable sandwich structure with a preform; finally, the above-mentioned foamable sandwich structure is put into Rapid foaming in an infrared foaming furnace can produce a magnesium / aluminum composite foamed magnesium sandwich panel with a metallurgical bonding interface. The sandwich panel greatly improves the mechanical properties and corrosion resistance of the foamed magnesium material, and widens the application range of the foamed magnesium material.

Description

technical field [0001] The invention belongs to the field of preparation of layered composite materials, and in particular relates to a preparation method of a foamed magnesium sandwich panel. Background technique [0002] The sandwich composite structure made of foamed magnesium as the core material and aluminum plate as the panel is called foamed magnesium sandwich panel for short. As a new type of foamed metal material, the foamed magnesium sandwich panel has excellent mechanical properties such as low relative density, light weight, high specific strength, and high specific stiffness. , damping shock absorption, electromagnetic shielding, heat insulation and other excellent physical properties, it is a multi-functional functional material, which has broad application prospects in the fields of transportation, aerospace and construction. [0003] At present, there are few reports on the preparation of foamed magnesium sandwich panels, mainly the method of preparing foame...

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): C22C1/08B21B1/38B32B37/14B32B38/00B32B38/18
CPCC22C1/08B21B1/38B32B37/14B32B38/0012B32B38/18B21B2001/386C22C1/088
Inventor 罗洪杰吴林丽张志刚黄闻战卢晓通
Owner NORTHEASTERN UNIV LIAONING
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