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

Method for thermal treatment of rare earth magnesium alloy

A rare earth magnesium heat treatment furnace technology, applied in the field of heat treatment of rare earth magnesium alloys, can solve the problems of extended cycle, coarsening, waste of energy, etc., and achieve the effects of optimizing alloy properties, refining alloy structure, and convenient operation

Inactive Publication Date: 2012-09-12
NANCHANG UNIV
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most important thing in solution treatment is to control the temperature of heat treatment, but when the temperature is too high, the heat will be too much, the alloy structure will grow and coarsen seriously, but when the temperature is too low, the time for holding heat will be prolonged , the cycle is prolonged, energy is wasted, and the effect on the homogenization of the alloy structure is not very good

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
  • Method for thermal treatment of rare earth magnesium alloy
  • Method for thermal treatment of rare earth magnesium alloy
  • Method for thermal treatment of rare earth magnesium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Implementation Example 1: First, put the Mg-6Al-1Zn alloy obtained by the ordinary casting method into a heat treatment furnace for primary heat treatment. The primary heat treatment temperature is 390°C, and the primary heat treatment time is 12 hours. The sample is water-cooled; then the sample is put into the heat treatment furnace again for secondary heat treatment, the temperature of the secondary heat treatment is 160°C, and the time of the secondary heat treatment is 10h. After the secondary heat treatment is completed, the sample is taken out for water cooling.

Embodiment 2

[0011] Implementation example 2: First, put the Mg-6Al-1Zn-0.5La alloy obtained by the ordinary casting method into a heat treatment furnace for primary heat treatment. The primary heat treatment temperature is 400 ° C, and the primary heat treatment time is 13 hours. After that, take out the sample and water-cool; then put the sample into the heat treatment furnace again for secondary heat treatment, the secondary heat treatment temperature is 170°C, and the secondary heat treatment time is 11h.

Embodiment 3

[0012] Implementation Example 3: First, put the Mg-6Al-1Zn-1.0La alloy obtained by the ordinary casting method into a heat treatment furnace for primary heat treatment. The primary heat treatment temperature is 410°C, and the primary heat treatment time is 14 hours. After that, take out the sample for water cooling; then put the sample into the heat treatment furnace again for secondary heat treatment, the secondary heat treatment temperature is 180 ° C, and the secondary heat treatment time is 12 hours.

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 method for thermal treatment of rare earth magnesium alloy, and method comprises the following steps of: firstly, putting Mg-6Al-1Zn-XLa (X is 0-2%) alloy into a thermal treatment furnace obtained by a common casting method to carry out first-class thermal treatment, wherein the temperature of the first-class thermal treatment ranges from 390DEG C to 420DEG C, and the time of the first-class thermal treatment ranges from 12 hours to 16 hours; withdrawing a sample to be cooled in water after the first-class thermal treatment is completed; putting the sample into the thermal treatment furnace to carry out second-class thermal treatment, wherein the temperature of the second-class thermal treatment ranges from 160DEG C to 200DEG C, and the time of the second-class thermal treatment ranges from 10 hours to 13 hours; and withdrawing the sample to be cooled in water after the second-class thermal treatment is completed. The method has the technical effects that the Mg-6Al-1Zn-XLa thermal treatment alloy obtained by the method is stable in content, the needle-shaped rare earth phases are evenly distributed in the alloy, the alloy tissue can be preferably refined, the alloy performance can be optimized, and the method is simple in technology, safe and reliable, and convenient to operate.

Description

technical field [0001] The invention relates to a heat treatment method for a rare earth magnesium alloy. Background technique [0002] Usually, the performance of magnesium alloys after ordinary casting is not very good, and heat treatment is needed to improve or adjust their mechanical properties and processing properties. Through heat treatment, some can reduce the internal stress of the casting and improve the dimensional stability of the workpiece; some can increase the strength of the magnesium alloy, so that the casting can meet the requirements of higher service strength. Generally, the magnesium alloy whose final heat treatment process is annealing mainly refers to the magnesium alloy that cannot be heat treated, or the effect of heat treatment is not good. When the solid solubility of elements in the alloy changes with temperature, the strength of the alloy can be improved by solution treatment. [0003] After solid solution treatment, it is beneficial to elimina...

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
IPC IPC(8): C22F1/06
Inventor 闫洪杜磊施新民单萍
Owner NANCHANG UNIV