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Novel flame-retardant magnesium alloy with high damping performance and processing process of novel flame-retardant magnesium alloy with high damping performance

A processing technology and high damping technology, applied in the field of alloys, it can solve the problem that magnesium fire cannot be completely eliminated, and achieve the effects of excellent fluidity, small tendency of hot cracking, and small tendency of shrinkage cavities.

Inactive Publication Date: 2018-12-25
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Considering the mobility of magnesium alloys, this design concept can only play a certain auxiliary role, but cannot completely eliminate magnesium fire.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A new flame-retardant and high-damping magnesium alloy and its processing technology. In terms of weight percentage, the composition of the alloy is B:0.1wt.%, Li:0.8wt.%, In:2.0wt.%, Bi:0.4wt.%, Cu:3.0wt.%, Hf:0.8wt.% , Mn: 4.0wt.%, Al: 3.5wt.%, and the balance is magnesium. The above-mentioned novel flame-retardant and high-damping magnesium alloy and its processing technology include the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a silicon carbide crucible. Induction heating to 760 degrees to form an alloy melt, and use the electromagnetic stirring effect to fully stir for about 12 minutes. The alloy melt is kept at 760°C for 12 minutes and then cast into a water glass or graphite mold for casting. The cast ingot is subjected to deformation treatment at room temperature, and the rolling reduction in each pass is 3-4%. Every 3 passes of rolling requires an intermediate heat treatment to eliminate w...

Embodiment 2

[0020] A new flame-retardant and high-damping magnesium alloy and its processing technology. In terms of weight percentage, the composition of the alloy is B:0.2wt.%, Li:1.2wt.%, In:2.5wt.%, Bi:0.8wt.%, Cu:4.0wt.%, Hf:1.2wt.% , Mn: 5.0wt.%, Al: 3.8wt.%, and the balance is magnesium. The above-mentioned novel flame-retardant and high-damping magnesium alloy and its processing technology include the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a silicon carbide crucible. Induction heating to 760 degrees to form an alloy melt, and use the electromagnetic stirring effect to fully stir for about 12 minutes. The alloy melt is kept at 760°C for 12 minutes and then cast into a water glass or graphite mold for casting. The cast ingot is subjected to deformation treatment at room temperature, and the rolling reduction in each pass is 3-4%. Every 3 passes of rolling requires an intermediate heat treatment to eliminate wor...

Embodiment 3

[0023] A new flame-retardant and high-damping magnesium alloy and its processing technology. In terms of weight percentage, the composition of the alloy is B:0.1wt.%, Li:0.9wt.%, In:2.4wt.%, Bi:0.5wt.%, Cu:3.5wt.%, Hf:0.9wt.% , Mn: 4.2wt.%, Al: 3.6wt.%, and the balance is magnesium. The above-mentioned novel flame-retardant and high-damping magnesium alloy and its processing technology include the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a silicon carbide crucible. Induction heating to 760 degrees to form an alloy melt, and use the electromagnetic stirring effect to fully stir for about 12 minutes. The alloy melt is kept at 760°C for 12 minutes and then cast into a water glass or graphite mold for casting. The cast ingot is subjected to deformation treatment at room temperature, and the rolling reduction in each pass is 3-4%. Every 3 passes of rolling requires an intermediate heat treatment to eliminate w...

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Abstract

The invention discloses a novel flame-retardant magnesium alloy with a high damping performance and a processing process of the novel flame-retardant magnesium alloy with the high damping performance.The magnesium alloy comprises, by weight, 0.1-0.2wt% of B, 0.8-1.2wt% of Li, 2.0-2.5wt% of In, 0.4-0.8wt% of Bi, 3.0-4.0wt% of Cu, 0.8-1.2wt% of Hf, 4.0-5.0wt% of Mn, 3.5-3.8wt% of Al and the balancemagnesium. A flame-retardation scheme for magnesium alloy combustion caused by friction or external fire heating is provided. Predictably, implementation and industrialization of the magnesium alloycan greatly promote commercial demands on flame-retardant magnesium alloy in the field of light weight in China.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a magnesium alloy. Background technique [0002] With the continuous development of modern science and technology, the consumption of metal materials is increasing day by day, and the resources of metal minerals are gradually becoming exhausted. Magnesium is one of the most abundant elements on the earth, with a resource content of 2.3% in the surface layer of the earth's crust, ranking fourth among commonly used metals. The density of magnesium alloy is about two-thirds of that of aluminum alloy and less than half of that of titanium alloy, so the advantage of light weight is obvious. The biggest feature of this alloy is high strength, impact resistance, good heat dissipation, stable size and large elastic modulus, and its ability to withstand impact load is stronger than that of aluminum alloy. These characteristics make magnesium alloys widely used in fields such as transport...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22C1/02C22F1/06
CPCC22C1/02C22C23/00C22F1/06
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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