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Magnesium alloy tool with low friction coefficient

A low friction coefficient, magnesium alloy technology, applied in the field of magnesium alloys, can solve problems such as easy corrosion and soft surface

Inactive Publication Date: 2019-03-26
长沙创恒机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its soft surface and easy corrosion are important problems that need to be solved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1: The magnesium alloy tool includes a magnesium alloy substrate, the magnesium alloy substrate is made of a magnesium alloy casting, and the magnesium alloy casting includes the following components in terms of mass percentage:

[0057] Si: 3%; Cu: 1.2%; Al: 5%; Mn: 0.5%; Y: 2.2%; Zr: 0.03%; Impurities to avoid;

[0058] The surface of the magnesium alloy casting is sputtered with 1.5% Ti by magnetron sputtering.

[0059] Concrete preparation method is:

[0060] Step 11, prepare raw materials according to the above components, and dry the raw materials: preheat the master alloy, pure magnesium, pure Si, Cu, Al, Mn, Zr, Nd at 100-200° C. for 2-4 hours.

[0061] Step 10, pure magnesium is melted, and base solvent is added to the crucible, and after the crucible is dark red, pure magnesium ingots are added;

[0062] Step 20, adding Mg-Y master alloy and Mg-Gd master alloy to the molten pure magnesium ingot obtained in step 10, the melting temperature is 750°...

Embodiment 2

[0072] Embodiment 2, the magnesium alloy tool includes a magnesium alloy substrate, the magnesium alloy substrate is made of a magnesium alloy casting, and the magnesium alloy casting includes the following components in terms of mass percentage:

[0073] Si: 3.5%; Cu: 1.8%; Al: 6.5%; Mn: 0.6%; Y: 2.5%; Zr: 0.05%; Nd: 0.3%; Gd: 0.3%; the balance is Mg and unavoidable impurities;

[0074] The surface of the magnesium alloy casting is sputtered with 2.5% Ti by magnetron sputtering.

[0075] Concrete preparation method is:

[0076] Step 11, prepare raw materials according to the above components, and dry the raw materials: preheat the master alloy, pure magnesium, pure Si, Cu, Al, Mn, Zr, Nd at 100-200° C. for 2-4 hours.

[0077] Step 10, pure magnesium is melted, and base solvent is added to the crucible, and after the crucible is dark red, pure magnesium ingots are added;

[0078] Step 20, adding Mg-Y master alloy and Mg-Gd master alloy to the molten pure magnesium ingot obta...

Embodiment 3

[0088] Embodiment 3, the magnesium alloy tool includes a magnesium alloy substrate, the magnesium alloy substrate is made of a magnesium alloy casting, and the magnesium alloy casting includes the following components in terms of mass percentage:

[0089] Si: 5.2%; Cu: 2.5%; Al: 8%; Mn: 0.8%; Y: 3.5%; Zr: 0.08%; Nd: 0.8%; Gd: 0.8%; the balance is Mg and unavoidable impurities;

[0090] The surface of the magnesium alloy casting is sputtered with 3.2% Ti by magnetron sputtering.

[0091] Concrete preparation method is:

[0092] Step 11, prepare raw materials according to the above components, and dry the raw materials: preheat the master alloy, pure magnesium, pure Si, Cu, Al, Mn, Zr, Nd at 100-200° C. for 2-4 hours.

[0093] Step 10, pure magnesium is melted, and base solvent is added to the crucible, and after the crucible is dark red, pure magnesium ingots are added;

[0094] Step 20, adding Mg-Y master alloy and Mg-Gd master alloy to the molten pure magnesium ingot obtain...

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Abstract

The invention provides a magnesium alloy tool with the low friction coefficient. The magnesium alloy tool comprises a magnesium alloy base, the magnesium alloy base is made of a magnesium alloy casting, and the magnesium alloy casting is prepared from the following components in percentage by mass: 3-5.2% of Si, 1.2-2.5% of Cu, 5-8% of Al, 0.5-0.8% of Mn, 2.2-3.5% of Y, 0.03-0.08% of Zr, 0.1-0.8%of Nd, 0.1-0.8% of Gd, and the balance of Mg and unavoidable impurities. Ti is sputtered on the surface of the magnesium alloy casting through a magnetron sputtering method. By sputtering a layer of Ti on the surface of a magnesium alloy through the magnetron sputtering method, the mechanical properties of the magnesium alloy are greatly improved, the strength of the magnesium alloy is improved, and the friction coefficient of the magnesium alloy is decreased.

Description

technical field [0001] The invention relates to the technical field of magnesium alloys, in particular to a magnesium alloy tool with a low coefficient of friction. Background technique [0002] Magnesium alloy is currently the lightest metal structural material in industrial applications. It has the advantages of low density, high specific strength and specific stiffness, good electromagnetic shielding and shock absorption, stable size, easy processing and easy recycling, etc. It is used in automobiles, aerospace , weapons and other fields have very broad application prospects. Among them, the AZ series magnesium alloy has a safe early reaction after implantation in animals and plants, and has a certain effect of inducing new bone formation, so it has a good medical prospect, thus opening the prelude to the medical research of magnesium alloys in the 21st century. However, its soft surface and easy corrosion are important problems that need to be solved. Ti is a material ...

Claims

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Application Information

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IPC IPC(8): C22C23/02C22C23/00C22C1/03C22F1/06C23C14/16C23C14/35
CPCC22C23/02C22C1/03C22C23/00C22F1/002C22F1/06C23C14/165C23C14/35
Inventor 陈云枫邹威其他发明人请求不公开姓名
Owner 长沙创恒机械设备有限公司
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