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Magnesium alloy rapidly and uniformly degraded in tap water and manufacturing method of component made of same

A manufacturing method and tap water technology, which is applied in the field of manufacturing magnesium alloys and their components, can solve problems such as no description or report found, no information found, etc., and achieve the effect of uniform degradation

Inactive Publication Date: 2018-02-16
冉兴 +7
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no description or report of a similar technology to the present invention, and no similar information has been searched at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Manufacture magnesium alloy components with a weight percentage of Mg-4.0%Gd-2.0%Y-0.4%Cu-5.0% MRAE, in which Ni accounts for 90% of the total MRAE, Mg is the balance, and the total of impurity elements Be, Zr, and Ca The weight percentage is less than 0.01%. Include the following steps.

[0020] Pretreatment step: weighing magnesium, magnesium-gadolinium master alloy, magnesium-yttrium master alloy, copper, nickel, iron, gallium, indium and other raw materials by weight percentage, wherein magnesium, magnesium-gadolinium master alloy, magnesium-yttrium master alloy, copper, nickel, The iron was preheated at 200°C for 8 hours.

[0021] Melting and pouring steps: It is recommended to melt in a crucible resistance furnace, add covering agent JDMF for covering, and refining agent RJ6 for refining treatment, so that the alloy components are evenly mixed, remove inclusions, pour at 680°C to obtain ingots.

[0022] Homogenization heat treatment step: the ingot is subjected ...

Embodiment 2

[0026] Manufacture magnesium alloy components with a weight percentage of Mg-6.0%Gd-1.5%Y-1.0%Cu-0.2%Zn-6.5% MRAE, in which Ni accounts for 95% of the total MRAE, Mg is the balance, and impurity elements Be, Zr , The total weight percentage of Ca is less than 0.01%. Include the following steps.

[0027] Pretreatment step: weighing magnesium, magnesium-gadolinium master alloy, magnesium-yttrium master alloy, copper, zinc, nickel, iron, gallium, indium and other raw materials by weight percentage, wherein magnesium, magnesium-gadolinium master alloy, magnesium-yttrium master alloy, copper, Zinc, nickel and iron are preheated at 200°C for 8 hours.

[0028] Melting and pouring steps: It is recommended to melt in a crucible resistance furnace, add covering agent JDMF for covering, and refining agent RJ6 for refining treatment, so that the alloy components are evenly mixed, and inclusions are removed, and poured at 670°C to obtain ingots.

[0029] Homogenization heat treatment ste...

Embodiment 3

[0033] Manufacture a magnesium alloy component with a weight percentage of Mg-8.0%Gd-0.4%Cu-0.4%Zn-8.0%Ni, Mg is the balance, and the total weight percentage of impurity elements Be, Zr, and Ca is less than 0.01%. Include the following steps.

[0034] Pretreatment step: weighing magnesium, magnesium-gadolinium master alloy, copper, zinc, nickel and other raw materials by weight percentage, and preheating at 200° C. for 8 hours.

[0035] Melting and pouring steps: It is recommended to melt in a crucible resistance furnace, add covering agent JDMF for covering, and refining agent RJ6 for refining treatment, so that the alloy components are evenly mixed, remove inclusions, and cast at 660 ° C to obtain ingots.

[0036] Homogenization heat treatment step: the ingot is subjected to homogenization heat treatment at 450° C. for 3 hours.

[0037] Thermal deformation processing step: Extrude the cast ingot at 420°C with a total deformation of 75% to obtain an extruded profile.

[003...

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Abstract

The invention belongs to the technical field of metal materials and discloses a magnesium alloy rapidly and uniformly degraded in tap water and a manufacturing method of a component made of the same.The magnesium alloy comprises, by weight percentage, 4.0-8.0% of Gd, 0-2.0% of Y, 0.4-1.0% of Cu, 0-0.4% of Zn and 5.0-8.0% of the (MRAE) total of mixed reaction promoting elements such as Ni, Fe, Caand In or only Ni, the balance Mg and less than 0.01% of the total of impurity elements, namely Be, Zr and Ca, wherein the Ni accounts for 90% or above of the MRAE total. Compared with the prior art,the component made of the magnesium alloy can be degraded in the tap water rapidly and uniformly; at the normal temperature, the corrosion rate in the tap water can reach 30 mg / cm<2>.h or above; underthe condition that electrolyte is heated, the corrosion rate can reach 550 mg / cm<2>.h at the maximum; and the magnesium alloy is suitable for being applied to the mining industry field which has therapid and uniform degradation requirement for structural materials.

Description

technical field [0001] The invention relates to a manufacturing method of a magnesium alloy and its components in the technical field of metal materials, in particular to a manufacturing method of a magnesium alloy and its components that degrade rapidly and uniformly in tap water. Background technique [0002] Magnesium alloys have the characteristics of low density and high specific strength, and are widely used in various industrial fields. On the other hand, magnesium alloys are chemically more active among the structural materials used in existing engineering applications, and have good application prospects in industrial fields that require rapid degradation of structural materials, such as mining machinery. Although the chemical properties of magnesium alloy are relatively active, the reaction rate between magnesium and water at room temperature is extremely weak. Even if it is heated to boiling, only a slow reaction can be observed, and the degradation rate cannot me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/06C22C23/00C22C1/03C22C1/06C22F1/06
CPCC22C23/06C22C1/03C22C1/06C22C23/00C22F1/06
Inventor 冉兴何英慧王晓华刘强钱康马亮张舟周建华唐廷基胡毅
Owner 冉兴
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