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Manufacturing technique for automobile magnesium alloy gearbox bracket

A gearbox bracket and production process technology, which is applied in the field of production technology of magnesium alloy gearbox brackets for automobiles, can solve the problems of poor deformation ability, limited development, high cost, etc., and achieve increased alloy nucleation probability and good elastic deformation resistance , Improve the effect of heat resistance

Inactive Publication Date: 2017-06-13
山东银光钰源轻金属精密成型有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Mg-Al series magnesium alloy is currently the most widely used magnesium alloy system. my country has made great progress in the application research of this series of magnesium alloys, such as AZ91, AZ31 and AZ63, which are widely used at present, but due to their dense crystal structure Hexagonal, poor deformation ability limits its development, a large number of studies have shown that doping with some elements can refine the grains and purify the melt of magnesium alloys, and can greatly improve the comprehensive mechanical properties of magnesium alloys
At present, most of the elements added to magnesium alloys are lanthanum, cerium, yttrium, gadolinium and neodymium, but the cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A production process for a magnesium alloy transmission bracket for automobiles, comprising the steps of:

[0020] Put the aluminum ingot into the crucible A and heat it until it melts, then add copper and strontium, then raise the temperature to 1120°C, keep it warm for 30 minutes to obtain a melt; insert the ultrasonic horn into the melt obtained above for ultrasonic treatment, the ultrasonic intensity is 1.2kw / cm 2 , the ultrasonic time is 10min; the temperature is lowered to 750°C to obtain an aluminum-copper-strontium master alloy body; the mass ratio of the aluminum ingot, copper and strontium is 100:5:2;

[0021] Preheat crucible B to 300°C, then add magnesium ingots, raise the temperature to 750°C at a rate of 10°C / S to obtain a magnesium melt, add aluminum-copper-strontium that accounts for one-tenth of the weight of the magnesium melt to the magnesium melt The intermediate alloy body is fully stirred for 15 minutes, then a modifier accounting for 1% of the we...

Embodiment 2

[0024] A production process for a magnesium alloy transmission bracket for automobiles, comprising the steps of:

[0025] Put the aluminum ingot into the crucible A and heat it until it melts, then add copper and strontium, then raise the temperature to 1120°C, keep it warm for 30 minutes to obtain a melt; insert the ultrasonic horn into the melt obtained above for ultrasonic treatment, the ultrasonic intensity is 1.2kw / cm 2 , the ultrasonic time is 10min; the temperature is lowered to 750° C. to obtain an aluminum-copper-strontium master alloy body; the mass ratio of the aluminum ingot, copper and strontium is 200:7:3;

[0026] Preheat crucible B to 300°C, then add magnesium ingots, raise the temperature to 750°C at a rate of 10°C / S to obtain a magnesium melt, add aluminum-copper-strontium that accounts for one-tenth of the weight of the magnesium melt to the magnesium melt The intermediate alloy body is fully stirred for 15 minutes, then a modifier accounting for 1% of the ...

Embodiment 3

[0029] A production process for a magnesium alloy transmission bracket for automobiles, comprising the steps of:

[0030] Put the aluminum ingot into the crucible A and heat it until it melts, then add copper and strontium, then raise the temperature to 1120°C, keep it warm for 30 minutes to obtain a melt; insert the ultrasonic horn into the melt obtained above for ultrasonic treatment, the ultrasonic intensity is 1.2kw / cm 2 , the ultrasonic time is 10min; the temperature is lowered to 750° C. to obtain an aluminum-copper-strontium master alloy body; the mass ratio of the aluminum ingot, copper and strontium is 100:7:2;

[0031] Preheat crucible B to 300°C, then add magnesium ingots, raise the temperature to 750°C at a rate of 10°C / S to obtain a magnesium melt, add aluminum-copper-strontium that accounts for one-tenth of the weight of the magnesium melt to the magnesium melt The intermediate alloy body is fully stirred for 15 minutes, then a modifier accounting for 1% of the ...

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Abstract

The invention belongs to the technical field of automobile parts and discloses a manufacturing technique for an automobile magnesium alloy gearbox bracket. The manufacturing technique comprises the following steps: 1) preparing an aluminum bronze strontium intermediate alloy; 2) stirring, jetting and forming; 3) pressing and processing surface. According to the invention, the raw materials are reasonable in compatibility; the method is simple and feasible; the prepared product has the advantages of excellent mechanical property and corrosion resistance; the application prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of auto parts processing, and in particular relates to a production process of a magnesium alloy transmission bracket for automobiles. Background technique [0002] Magnesium alloy is the best alternative material to realize the lightweight of automobiles. Magnesium alloy has low specific gravity, high strength, and elongation comparable to aluminum alloy in all aspects. Therefore, magnesium alloy die-casting parts need rapid development. However, in the current domestic market, there is a lack of experience in magnesium alloy technology and management and control, resulting in a low pass rate and high cost of magnesium alloy products, which seriously restricts the rapid development of magnesium alloys. At present, most of the automotive gearbox brackets are made of alloy materials, which need to have the advantages of light weight, mechanical properties, good oxidation resistance and corrosion resistance, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22C23/02C22C1/06B22F3/115
CPCB22F3/115C22C1/03C22C1/06C22C23/02
Inventor 孙强张希笑马忠其陈锐王飞
Owner 山东银光钰源轻金属精密成型有限公司
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