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Mg-Ca-In magnesium alloy for pressure casting and with high damping characteristic

A mg-ca-in, magnesium alloy technology, applied in the field of alloys, can solve the problems of destroying workshops, equipment and ecological environment, polluting the environment with toxic gases, reducing service life and other problems, achieving excellent filling performance, excellent flame retardant performance, The effect of reducing the tendency of shrinkage crater formation

Inactive Publication Date: 2018-06-29
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(4) Casting cracks
However, the use of both methods is limited by the inevitable drawbacks
For example, it is easy to produce toxic gas to pollute the environment and cause flux inclusions to damage the performance of the alloy.
Moreover, flux inclusions are likely to become a source of corrosion during product use, accelerating material corrosion and reducing service life
In addition, the chlorine salt and fluorine salt in the flux are easy to volatilize at high temperature and produce some strong corrosive gases, which will damage the plant, equipment and ecological environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A Mg-Ca-In magnesium alloy for die casting with high damping characteristics smelted at 750 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 1.2wt.%, In: 2.6wt.%; Sn: 3.8wt.%, Sb: 0.9wt.%, Zr: 0.5wt.%, Be: 0.4wt .%, and the balance is magnesium. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 750 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 750°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots. The ingot moves down at a speed of 12m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare magnesium-calcium alloy castings with complex shapes; the...

Embodiment 2

[0020]A Mg-Ca-In magnesium alloy for die casting with high damping characteristics smelted at 770 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 1.2wt.%, In: 2.8wt.%; Sn: 3.6wt.%, Sb: 1.2wt.%, Zr: 0.6wt.%, Be: 0.3wt .%, and the balance is magnesium. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 770 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 770°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square ingots and round ingots. The ingot moving speed is 15m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare magnesium-calcium alloy castings with complex shapes; the fi...

Embodiment 3

[0023] A Mg-Ca-In magnesium alloy for die casting with high damping characteristics smelted at 790 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 1.4wt.%, In: 2.6wt.%; Sn: 3.8wt.%, Sb: 1.4wt.%, Zr: 0.5wt.%, Be: 0.3wt .%, and the balance is magnesium. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heat to 790 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy liquid in After standing at 790°C for 10 minutes, it is cast into the equipment at the same level as the hot top for semi-continuous casting into the required square and round ingots, with the ingot moving down at a speed of 14m / min. The ingot can be used as casting raw material for pressure casting in the subsequent process to prepare magnesium-calcium alloy castings with complex shape...

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Abstract

The invention discloses Mg-Ca-In magnesium alloy for pressure casting and with high damping characteristic as well as a processing process thereof. The alloy comprises the following components in percentage by weight: 0.6 to 1.5 percent of Ca, 1.6 to 3.2 percent of In, 3.0 to 4.5 percent of Sn, 0.8 to 1.5 percent of Sb, 0.4 to 0.8 percent of Zr, 0.2 to 0.5 percent of Be and the balance of magnesium. The magnesium calcium alloy has excellent pressure casting property and also has excellent damping property. The bottom layer property of the traditional magnesium for casing is expected to be innovated and optimized, so positive significance in development and improvement of the magnesium alloy pressure casting process, even the whole pressure casting industry and the technology thereof is achieved.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a magnesium-calcium alloy. Background technique [0002] Magnesium alloy has good light weight, machinability, corrosion resistance, shock absorption, dimensional stability and impact resistance, far superior to other materials. These characteristics make magnesium alloys have applications in a wide range of fields, such as transportation, electronic industry, medical field, military industry and so on. Especially in the fields of 3C products (Computer, Consumer Electronic Product, Communication), high-speed rail, automobiles, bicycles, aerospace, architectural decoration, hand tools, medical rehabilitation equipment and other fields, it has good application prospects and great potential. One of the development directions of new materials in the future. At present, the application fields of magnesium alloys in aviation include various civil and military aircraft civil engine par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22C1/02C22F1/06
CPCC22C23/00C22C1/02C22F1/06
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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