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High-strength wear-resisting heat-resisting aluminium alloy material and preparation process thereof

An aluminum alloy material, high-strength technology, applied in the field of aluminum alloy material and its preparation, can solve the problems of unsustainable application, high alloy cost, poor castability, etc., to achieve high temperature deformation resistance and wear resistance enhancement, high product quality , the effect of strong castability

Active Publication Date: 2014-09-24
贵阳华恒机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing high-performance aluminum alloys have some serious defects, such as high strength or high hardness but poor castability; high temperature resistance but severe wear and unsustainable application; or high alloy costs that cannot be truly popularized and applied
There are no public reports on aluminum alloy materials that can meet the requirements of high mechanical properties, high temperature deformation resistance and good wear resistance at the same time.

Method used

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  • High-strength wear-resisting heat-resisting aluminium alloy material and preparation process thereof
  • High-strength wear-resisting heat-resisting aluminium alloy material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1. The high-strength wear-resistant and heat-resistant aluminum alloy material has the following chemical components by weight percentage: copper (Cu): 4.0-6.5%, titanium (Ti): 0.06-0.4%, manganese (Mn): 0.08-0.6%, Antimony (Sb): 0.03-0.4%, Nickel (Ni): 0.4-0.6%, Cobalt (Co): 1.2-1.8%, Zirconium (Zr): 0.2-0.3%, Rare Earth Elements (RE): 0.2-1.8% , and the balance is aluminum (Al). In this example, the total amount of aluminum alloy prepared according to the above ratio is 1300 kg, and the weight of the required elements is calculated: copper (Cu): 52 kg, titanium (Ti): 1.3 kg, manganese (Mn): 1.04 kg, antimony (Sb): 0.39 kg, nickel (Ni): 5.2 kg, cobalt (Co): 15.6 kg, zirconium (Zr): 2.6 kg, rare earth element (RE): 6.5 kg for material preparation; put into graphite crucible for smelting, and the melting temperature is controlled at 800°C. While smelting, first add red copper, 75 manganese agent, 75 titanium agent, ALNi10 intermediate alloy, ALCo10, ALV10 inter...

Embodiment 2

[0037] Example 2. According to the total amount of aluminum alloy to be prepared is 1300kg, calculate the weight of the required elements: copper (Cu): 84.5 kg, titanium (Ti): 5.2kg, manganese (Mn): 7.8 kg, antimony (Sb): 5.2kg, Nickel (Ni): 7.8kg, cobalt (Co): 12.4kg, zirconium (Zr): 3.9kg, rare earth element (RE): 15.6 kg for material preparation; first put the double zero aluminum ingot into the graphite crucible for melting, melting The temperature is controlled at 800°C. While melting, add red copper, 75 manganese agent, 75 titanium agent, ALNi10 intermediate alloy, ALCo10, ALV10 intermediate alloy to the crucible in order, and raise the temperature of the crucible to 950°C. After all the metals are melted Then add pure antimony block metal, and finally add rare earth intermediate alloy; refine the melt in the crucible, add refiner at the same time, and stir to promote the fusion of the alloy; after refining, slag, stand still, adjust the temperature of the melt to 750 ℃ ...

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Abstract

The invention discloses a high-strength wear-resisting heat-resisting aluminium alloy material and a preparation process thereof. The material comprises, by weight, 4.0-6.5% of copper, 0.06-0.4% of titanium, 0.08-0.6% of manganese, 0.03-0.4% of antimony, 0.4-0.6% of nickel, 1.2-1.8% of cobalt, 0.2-0.3% of zirconium, 0.2-1.8% of rare earth and the balance aluminum. During preparation of the material, a special heat treatment process is used. The material has the advantages of being capable of improving the mechanical strength, the abrasive resistance and the high-temperature deformation resistance of an aluminium alloy simultaneously, the material can be used for cast members which are required to bear a certain high temperature and have high mechanical performance requirements, and a new field of application of the aluminium alloy material is developed.

Description

technical field [0001] The invention relates to an aluminum alloy material and a preparation method thereof, in particular to a high-strength wear-resistant and heat-resistant aluminum alloy material and a preparation method thereof. Background technique [0002] Due to its low density and corrosion resistance, aluminum alloys are used in many fields such as automobiles and aerospace. However, in some fields that require no deformation at high temperatures and high precision, such as the slewing device of an aero-engine, the existing aluminum alloys cannot meet their performance requirements. With the rapid development of my country's aviation industry, there is an urgent need for high-performance aluminum alloys as the support of key equipment. Existing high-performance aluminum alloys have some serious defects, such as high strength or high hardness but poor castability; high temperature resistance but severe wear and unsustainable application; or high alloy costs that ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/12C22C1/03C22F1/057
Inventor 曾琦
Owner 贵阳华恒机械制造有限公司
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