High-performance hinge

A high-performance, hinged technology, applied in lamination, hinged panels, door/window accessories, etc., can solve the problems of lack of wear resistance and corrosion resistance, low hardness of magnesium alloy, insufficient toughness, etc., and achieve tensile strength High, good toughness, the effect of reducing anisotropy

Inactive Publication Date: 2018-05-01
宁波市鄞州隆茂冲压件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the strength and hardness of steel, aluminum and other materials are relatively complex, the toughness of the two is slightly insufficient, and their wear resistance and corrosion resistance are also lacking.
[0004] In view of the shortcomings of traditional magnesium alloys such as low hardness and non-wear resistance, Publication No. 106244936A discloses a method to improve the strength, hardness and wear resistance of products by increasing the content of carbon, chromium and molybdenum in alloy balls.
However, simply adding certain elements cannot solve the problems of strength, hardness, toughness and corrosion resistance of magnesium alloys very well.

Method used

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  • High-performance hinge

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Ingredients: Weigh raw materials according to the composition and mass percentage of the above hinge, including Si: 0.2%, Zn: 0.2%, Zr: 0.06%, Ca: 0.3%, Li: 0.03%, RE: 0.05%, and the balance is Mg and impurities, wherein RE is cerium, and the impurities include H<0.002%, Fe<0.001%, N<0.001%, O<0.002%. Magnesium is directly smelted into magnesium liquid.

[0036] Pre-removal of impurities: heat up the magnesium liquid, blow inert gas from the bottom of the liquid, wrap it with tungsten after standing still, and then soak it in liquid nitrogen. After the magnesium liquid solidifies, remove impurities to obtain magnesium blocks.

[0037] Melting: Mix and melt materials other than RE with magnesium blocks to form alloy liquid, lower the temperature until the alloy liquid is semi-solid, then melt RE alone and evenly add it to the alloy liquid, and obtain magnesium alloy plates after cooling.

[0038] Heat treatment: first normalize the magnesium alloy plate at a temperature...

Embodiment 2

[0041] Ingredients: Weigh raw materials according to the composition and mass percentage of the above hinge, including Si: 0.1%, Zn: 0.1%, Zr: 0.05%, Ca: 0.2%, Li: 0.02%, RE: 0.04%, and the balance is Mg and impurities, wherein RE is yttrium, and the impurities include H<0.002%, Fe<0.001%, N<0.001%, O<0.002%. Magnesium is directly smelted into magnesium liquid.

[0042] Pre-removal of impurities: heat up the magnesium liquid, blow inert gas from the bottom of the liquid, wrap it with tungsten after standing still, and then soak it in liquid nitrogen. After the magnesium liquid solidifies, remove impurities to obtain magnesium blocks.

[0043]Melting: Mix and melt materials other than RE with magnesium blocks to form alloy liquid, lower the temperature until the alloy liquid is semi-solid, then melt RE alone and evenly add it to the alloy liquid, and obtain magnesium alloy plates after cooling.

[0044] Heat treatment: first normalize the magnesium alloy plate at a temperature...

Embodiment 3

[0047] Ingredients: Weigh raw materials according to the composition and mass percentage of the above hinge, including Si: 0.3%, Zn: 0.3%, Zr: 0.07%, Ca: 0.4%, Li: 0.04%, RE: 0.06%, and the balance is Mg and impurities, wherein RE is cerium, and the impurities include H<0.002%, Fe<0.001%, N<0.001%, O<0.002%. Magnesium is directly smelted into magnesium liquid.

[0048] Pre-removal of impurities: heat up the magnesium liquid, blow inert gas from the bottom of the liquid, wrap it with tungsten after standing still, and then soak it in liquid nitrogen. After the magnesium liquid solidifies, remove impurities to obtain magnesium blocks.

[0049] Melting: Mix and melt materials other than RE with magnesium blocks to form alloy liquid, lower the temperature until the alloy liquid is semi-solid, then melt RE alone and evenly add it to the alloy liquid, and obtain magnesium alloy plates after cooling.

[0050] Heat treatment: first normalize the magnesium alloy plate at a temperature...

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Abstract

The invention discloses a high-performance hinge, and belongs to the technical field of metal materials. The hinge comprises the following raw materials, by mass percentage, 0.1-0.3% of Si, 0.1-0.3% of Zn, 0.05-0.07% of Zr, 0.2-0.4% of Ca, 0.02-0.04% of Li, 0.04-0.06% of RE, and the balance Mg and impurities. The high-performance hinge has the advantages that the solid solubility of the Ca in theMg is very small, and the Ca and the Mg form a Mg2Ca compound; in a magnesium alloy, an obvious grain refining effect can be achieved, the melting point of the magnesium alloy can be obviously improved, a protective film of CaO can be formed, and the flame-retardant effect can be achieved; the Zr is the most effective grain refiner and can form a compound with Fe and even H and O elements in the alloy so as to purify melt; the RE can purify the alloy melt, improve the alloy structure, improve the mechanical properties of the alloy at different temperatures and enhance the corrosion resistanceof the alloy; and meanwhile, the primary purification of the Mg can be completed through a rapid freezing physical method, and therefore the performance of the alloy can be improved.

Description

technical field [0001] The invention relates to a high-performance hinge, which belongs to the field of metal materials. Background technique [0002] A hinge, also known as a hinge, is a mechanical device used to connect two solids and allow relative rotation between them. Hinges can be constructed of movable components, or of collapsible material. Hinges are mainly installed on doors and windows, while hinges are more installed on cabinets. Doors, windows or cabinets are often used frequently in daily life, and the hinge as a transmission is very important. The composition of its material determines the use effect and service life. Ordinary hinges are usually made of steel, iron, aluminum, etc. [0003] Although the strength and hardness of steel, aluminum and other materials are relatively complex, the toughness of the two is slightly insufficient, and their wear resistance and corrosion resistance are also lacking. [0004] In view of the shortcomings of traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22C23/04C22C1/02C22F1/06B32B37/00B32B38/00E05D9/00
CPCC22C23/00B32B37/00B32B38/0008B32B2307/554B32B2307/714B32B2310/0843C22C1/02C22C23/04C22F1/06E05D9/00
Inventor 陈思妤李金龙陈斌干勐俊林楠
Owner 宁波市鄞州隆茂冲压件厂
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