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

High-strength high-toughness magnesium alloy produced by semi-solid injection molding method

A technology of injection molding and magnesium alloy, which is applied in the field of high strength and toughness magnesium alloy, can solve the problems of high production cost, unusability, high melting point, etc., and achieve the effect of excellent strength and toughness, compact microstructure and improved performance

Inactive Publication Date: 2013-04-03
CHANGCHUN UNIV OF TECH
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the key problem that restricts the further application of magnesium alloy parts in the automobile industry is that the strength and toughness of magnesium alloys are insufficient, and they cannot be used for important structural parts.
Adding rare earth is an effective means to improve the strength and toughness of magnesium alloys. However, due to the high melting point of rare earth alloys, the production cost of magnesium-rare earth application alloys is relatively high.

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
  • High-strength high-toughness magnesium alloy produced by semi-solid injection molding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Injection molding of a high-strength and tough magnesium alloy with a rare earth content of 2%

[0017] The weight ratio of magnesium alloy chips and magnesium-rare earth master alloy chips is 90:10, and the screw dosing devices 4 and 5 will feed magnesium alloy chips 3 and magnesium-rare earth master alloy chips 6 respectively according to the set weight ratio of 90:10. The storage hoppers 1 and 2 are fed into the metal chips mixing device 7 from the inlet. Under the action of the motor-driven screw agitator, the magnesium alloy chips 3 and the magnesium-rare earth intermediate alloy chips 6 are evenly mixed, and the mixed metal chips 8 enter the injection molding through the outlet. The feeding hopper 9 of the injection machine, the work of the metal chip mixing device is carried out under the protection of argon gas, and the argon gas enters the protective gas input pipe 11 to protect the metal chips in it from oxidation; the mixed metal chips entering ...

Embodiment 2

[0018] Example 2: Injection molding of a high-strength and tough magnesium alloy with a rare earth content of 1%

[0019] The weight ratio of magnesium alloy chips and magnesium-rare earth master alloy chips is 95:5, and the screw dosing devices 4 and 5 will feed magnesium alloy chips 3 and magnesium-rare earth master alloy chips 6 respectively according to the set weight ratio of 95:5. The storage hoppers 1 and 2 are fed into the metal chips mixing device 7 from the inlet. Under the action of the motor-driven screw agitator, the magnesium alloy chips 3 and the magnesium-rare earth intermediate alloy chips 6 are evenly mixed, and the mixed metal chips 8 enter the injection molding through the outlet. The feeding hopper 9 of the injection machine, the work of the metal chip mixing device is carried out under the protection of argon gas, and the argon gas enters the protective gas input pipe 11 to protect the metal chips in it from oxidation; the mixed metal chips entering the in...

Embodiment 3

[0019] The weight ratio of magnesium alloy chips and magnesium-rare earth master alloy chips is 95:5, and the screw dosing devices 4 and 5 will feed magnesium alloy chips 3 and magnesium-rare earth master alloy chips 6 respectively according to the set weight ratio of 95:5. The storage hoppers 1 and 2 are fed into the metal chips mixing device 7 from the inlet. Under the action of the motor-driven screw agitator, the magnesium alloy chips 3 and the magnesium-rare earth intermediate alloy chips 6 are evenly mixed, and the mixed metal chips 8 enter the injection molding through the outlet. The feeding hopper 9 of the injection machine, the work of the metal chip mixing device is carried out under the protection of argon gas, and the argon gas enters the protective gas input pipe 11 to protect the metal chips in it from oxidation; the mixed metal chips entering the injection machine feeding hopper Under the control of the screw dosing device 10 , mixed metal chips enter the inject...

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 relates to a high-strength high-toughness magnesium alloy produced by a semi-solid injection molding method, characterized in that the high-strength high-toughness magnesium alloy is added with 0.5-4.0% of rare earth elements on the basis of AM50 / AM60 alloy. The magnesium-rare earth intermediate alloy component in the high-strength high-toughness magnesium alloy is Mg-20% (Ce, La) alloy, wherein the weight percentage of Ce to La is 45: 55. The high-strength high-toughness magnesium alloy different in rare earth contents can be prepared conveniently in the semi-solid injection molding way; therefore, the performance of the magnesium alloy product is improved and the internal microscopic structure of the product is compact so that the product can be subjected to thermal treatment; and the material has excellent strength and toughness.

Description

technical field [0001] The invention relates to a high-strength and tough magnesium alloy produced by a semi-solid injection molding method, which is suitable for the manufacture of magnesium alloy parts with higher strength and higher fatigue resistance requirements, such as seat frames and other products, and belongs to metal processing craft field. Background technique [0002] Magnesium is the lightest engineering metal material in practical engineering applications (density 1.8g / cm 3 , which is 2 / 3 of aluminum and 1 / 4 of steel), with light specific gravity, high specific strength and specific stiffness, good damping and machinability, good thermal conductivity, strong electromagnetic shielding ability, good vibration damping and easy recycling With a series of unique properties, it meets the requirements of the modern automobile industry for weight reduction, energy saving, and environmental protection. It has become the material of choice for modern automobiles and is...

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): C22C1/00C22C23/00B22D17/00B22D17/30
Inventor 崔晓鹏
Owner CHANGCHUN UNIV OF TECH