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

A compound refining method for zirconium-containing magnesium alloy

A compound refining and magnesium alloy technology, which is applied in the field of compound refining of zirconium-containing magnesium alloys, can solve the problems such as the weakening of zirconium grain refinement effect, and achieve the effect of improving grain refinement effect, less inclusion amount and high purity

Inactive Publication Date: 2020-10-02
SICHUAN UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. The effect of zirconium grain refinement is weakened

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 compound refining method for zirconium-containing magnesium alloy
  • A compound refining method for zirconium-containing magnesium alloy
  • A compound refining method for zirconium-containing magnesium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A compound refining method for a zirconium-containing magnesium alloy, comprising the steps of:

[0058] a. The first heating device 1 includes a crucible. The size of the crucible is 500 mm in inner diameter and 1000 mm in depth. After the crucible is energized and preheated to 450 ° C, 212.67 kg of magnesium ingots are added to the crucible, and the magnesium ingots are Mg>99.80wt.%, the first The heating device 1 melts the magnesium ingot into a molten magnesium melt;

[0059] b. The molten magnesium melt is stirred by a stirring device, and the stirrer 4 is located at one-third of the height of the molten magnesium melt, and the first heating device 1 continues heating to make the molten magnesium melt reach a temperature of 750° C. The magnesium melt is added with 1.50kg of zinc flakes and 20.83kg of magnesium-neodymium master alloy after preheating through the crucible. Under the above conditions, the stirring device continued to stir for 3min to obtain an interm...

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 discloses a composite refining method for zirconium-containing magnesium alloy, including the steps of a, adding magnesium ingots in a first heating device and melting the magnesium ingots into molten magnesium; b, adding alloy-element ingots in the molten magnesium to obtain an intermediate magnesium melt; c, adding magnesium-zirconium intermediate alloy in the intermediate magnesium melt, stirring continuously in a stirring device to obtain an alloy melt; d, removing floating slags on the surface of the alloy melt; e, adding a flux for refining into the alloy melt; f, adding gas for refining into the alloy melt through a gas delivery device; g, cooling the alloy melt to the casting temperature. As alloys containing no zirconium alloy and magnesium intermediate alloy are processed respectively, deposited zirconium element particles are returned to the alloy intermediate melt to be molten, and solubility of zirconium in the alloy intermediate melt can be increased, zirconium yield is also increased, while production cost is lowered.

Description

technical field [0001] The invention relates to the technical field of smelting zirconium-containing magnesium alloys, in particular to a composite refining method for zirconium-containing magnesium alloys. Background technique [0002] In order to improve the purity of magnesium alloy products, it is necessary to use smelting technology to remove inclusions in magnesium melt. Inclusions generally exist in the form of particles, clusters or films on the grain boundaries or matrix of magnesium alloys. According to the composition and structure, inclusions in magnesium alloys can be divided into three categories: non-metallic inclusions, metal inclusions and gases: ① non-metallic inclusions include magnesium nitrogen oxides (MgO, Mg 3 N 2 ), metal halides (KCl, NaCl, CaCl 2 , MgCl 2 etc.), aluminum calcium carbide (CaC, Al 4 C 3 etc.), magnesium-aluminum-based fluorides and magnesium-based sulfides (MgSO 4 , MgS, AlF 3 , MgF 2 ); ②Metal inclusions include α-Fe particl...

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): C22C1/03C22C1/06C22C23/00
CPCC22C1/03C22C1/06C22C23/00
Inventor 黄彦彦杨晓娇周青华王家序贺小飞肖季常周广武蒲伟
Owner SICHUAN 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