Method for preparing high-performance magnesium alloy sheet

A magnesium alloy, high-performance technology, used in metal rolling, manufacturing tools, temperature control, etc., can solve the problem of not finding the optimal configuration of cast-rolled slabs, and achieve the effect of high tensile strength, fine and uniform grains

Inactive Publication Date: 2009-06-24
TSINGHUA UNIV
View PDF0 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent search results show that the current patents on magnesium alloy cast-rolled sheets are mainly concentrated on the development of casting-rolling equipment and casting-rolling process, and no patents on the optimal configuration of the entire process flow of cast-rolled slab, hot rolling, warm rolling and annealing have been retrieved. patent

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Proportioning is carried out according to the alloy composition of the following magnesium alloy sheet:

[0019] 2.5% to 3.5% Al, 0.6% to 1.4% Zn, Fe≤0.005%, Si≤0.08%, Cu≤0.01%, Ni≤0.001, Ca≤0.04%, and the rest is Mg.

[0020] The production process is:

[0021] 1) Casting and rolling process

[0022] 1.1) Alloy melting:

[0023] The batching is carried out according to the set ingredients, and then heated from room temperature to 640-660°C under the SF6+N2 protective atmosphere to melt the batching. Raise the temperature to 700-720°C, add the intermediate alloy, and stir vigorously to make the added alloy disperse evenly, and keep it warm for 25-30min. Raise the temperature to 720-750°C, pass argon gas into the melt for 10-15 minutes, carry out hydrogen removal treatment, and keep stirring until the melt is relatively uniform.

[0024] 1.2) High temperature casting and rolling:

[0025] Lower the temperature to the casting and rolling temperature of 670-740°C, and...

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
thicknessaaaaaaaaaa
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to a method for preparing a high performance magnesium alloy sheet, which belongs to the technical field of magnesium alloy preparation. The method is characterized by comprising: firstly, smelting out a magnesium alloy fused mass conforming to the requirements on components and then, adopting a double-roller rolling mill to produce rolling sheet blanks; heating the rolling sheet blanks to a set temperature so as to carry out hot rolling and matching with intermediate annealing in the hot rolling process so as to ensure that the sheets have perfect recrystallization and eliminate processing hardening; and subsequently, thermally rolling the hot rolled sheets to the needed thickness and carrying out final annealing on the magnesium alloy sheets so as to obtain the high performance magnesium alloy sheets with fine and uniform crystal grains. The prepared magnesium alloy sheets have the advantages of higher tensile strength, yield strength and elongation.

Description

technical field [0001] The invention belongs to the technical field of magnesium alloy preparation. Background technique [0002] Magnesium alloys have broad application prospects in industries such as automobiles, aviation, aerospace, electronics and sporting goods. At present, the application of magnesium alloys is only focused on casting magnesium alloys, especially suitable for die-casting magnesium alloys, and the application of deformed magnesium alloys needs to be further developed. Plate is the most widely used metal material, and plate accounts for more than 60% of the total metal in traditional metal structural materials. At present, the plates of magnesium alloys account for less than 2% of the total products. Therefore, magnesium alloy plates, especially thin plates, have great room for development. [0003] The close-packed hexagonal structure of magnesium determines its poor plastic deformation ability at room temperature, and the conventional rolling process...

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): B21B1/46B21B1/22B21B37/74B21B37/58C21D1/26C21D9/46C21D11/00
Inventor 李培杰赵虎何良菊
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap