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

Process for preparing magnesium alloy with layered gradient structure

A gradient structure and preparation technology, applied in the direction of metal rolling, metal rolling, manufacturing tools, etc., can solve the problems of reducing material plasticity, restricting the rapid development of the magnesium alloy industry, and unfavorable processing and deformation, so as to improve material strength, Improved comprehensive mechanical properties and low production costs

Inactive Publication Date: 2018-02-02
NANCHANG UNIV
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods can produce higher plastic strain in metal materials, the grain size can be effectively refined, and the strength can be improved, but the plasticity of the material will be reduced to a certain extent, which is very unfavorable to the subsequent processing and deformation of the plate. The rapid development of the magnesium alloy industry

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
  • Process for preparing magnesium alloy with layered gradient structure
  • Process for preparing magnesium alloy with layered gradient structure
  • Process for preparing magnesium alloy with layered gradient structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The invention discloses a preparation process of a layered gradient structure magnesium alloy, which comprises the following steps:

[0028] a. Select two or more magnesium alloy plates of the same specification, and carry out surface mechanical grinding treatment on each magnesium alloy plate; in the present embodiment, what is selected is three AZ31 magnesium alloy plates; in order to avoid deformation, the front and back sides are alternately processed method, the single processing time for one side is 10s, and the cumulative processing time for one side is 4min.

[0029] b. Clean the bonding surface of each AZ31 magnesium alloy plate with a wire brush and acetone, remove the oxide layer and dirt, and rinse with deionized water;

[0030] c. Stack the processed plates together and make them tightly bonded, with no relative movement between the plates as the standard; this embodiment uses thin copper wires to bind and fix the three plates, and other forms of the prior ...

Embodiment 2

[0037] a. Select three AZ31 magnesium alloy plates and perform mechanical grinding on the surface of each plate; in order to avoid deformation, the front and back sides are treated alternately. The single treatment time for one side is 30s, and the cumulative treatment time for one side is 10 minutes;

[0038] b. Clean the bonding surface of each AZ31 magnesium alloy plate with a wire brush and acetone, remove the oxide layer and dirt, and rinse with deionized water;

[0039] c. Stack the treated plates together and make them tightly bonded, with no relative movement between the plates as the standard;

[0040] d. Put the stacked plates into the incubator, and keep warm for 30 minutes after rising to the set 150°C;

[0041] e. Take out the plate and put it into the rolling mill immediately for rolling with a reduction of 30%, that is to say, complete one stack rolling;

[0042] f. Air cooling;

[0043] g. Cut the rolled and cooled plate into equal parts, cut into three piece...

Embodiment 3

[0047] a. Select three AZ91 magnesium alloy plates and perform surface mechanical grinding treatment on each plate; in order to avoid deformation, adopt the method of alternating front and back sides. The single treatment time for one side is 20s, and the cumulative treatment time for one side is 7 minutes;

[0048] b. Clean the bonding surface of each AZ91 magnesium alloy plate with a wire brush and acetone, remove the oxide layer and dirt, and rinse with deionized water;

[0049] c. Stack the treated plates together and make them tightly bonded, with no relative movement between the plates as the standard;

[0050] d. Put the stacked plates into the incubator, and keep warm for 10 minutes after rising to the set 450°C;

[0051] e. Take out the plate and put it into the rolling mill immediately for rolling with a reduction of 50%, that is to say, complete one stack rolling;

[0052] f. Air cooling;

[0053] g. Cut the rolled and cooled plate into equal parts, cut into three p...

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
hardnessaaaaaaaaaa
tensile strengthaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of metal material processing, in particular to a process for preparing magnesium alloy with a layered gradient structure. The process includes the following steps that a, two or more magnesium alloy plates in the same specification are selected, and the magnesium alloy plates are subjected to surface mechanical attrition treatment; b, the bonding surfaces of eachplate are cleaned to remove oxide layers and dirt; c, the processed plates are laminated together and tightly jointed so as to reach the standard that there is no relative movement between the plates; d, the laminated plates are put into an incubator, and heat preservation is carried out for 5-30 min after the temperature is raised to the set temperature of 150-450 DEG C; e, the plates are takenout and immediately put in a rolling mill to be subjected to rolling with the rolling reduction of 30%-70%, and one-time pack rolling is completed; and f, the plates are subjected to air cooling to reach the room temperature. The process is simple and convenient, safe and reliable, low in production cost and suitable for improving the comprehensive mechanical property of the magnesium alloy platesin industrialized production.

Description

technical field [0001] The invention relates to the field of metal material processing, in particular to a preparation process of a layered gradient structure magnesium alloy. Background technique [0002] Magnesium alloy is the lightest metal structural material at present, with the characteristics of low density, high specific strength and specific stiffness, good damping and vibration reduction, good thermal conductivity, good electronic shielding effect, good machinability and dimensional stability, etc., in recent years to attract people's attention, especially in the automotive and aerospace applications. However, due to the hexagonal close-packed (HCP) crystal structure of magnesium and magnesium alloys, there are few slip systems, compared with other materials (aluminum and steel, etc.), the plastic deformation ability is poor, which limits its further application in industry. Grain refinement can improve the strength and toughness of magnesium and magnesium alloy m...

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 Applications(China)
IPC IPC(8): B21B1/38B21B47/00
CPCB21B1/38B21B47/00B21B2001/386
Inventor 刘勇孟祥晨罗岚
Owner NANCHANG UNIV
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