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A high wear-resistant shaft-free aluminum-based alloy and its preparation method

An aluminum-based alloy and alloy technology, which is applied in the field of high wear-resistant non-shaft-holding aluminum-based alloys and its preparation, can solve the problems of shaft "seizure, shaft holding, etc., prolong service life, increase density, and increase alloy size The effect of stability

Inactive Publication Date: 2015-09-09
四川超耐磨高科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is still easy to cause "seizure" and "shaft holding" accidents with the shaft during operation, and the above problems still exist for parts that meet the requirements of high manufacturing precision, high wear resistance and corrosion resistance, and harsh working conditions

Method used

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  • A high wear-resistant shaft-free aluminum-based alloy and its preparation method
  • A high wear-resistant shaft-free aluminum-based alloy and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high wear-resistant shaft-free alloy, made of the following components by weight percentage: 39 zinc, 2.5 silicon, 4.2 copper, 0.75 manganese, 0.42 chromium, 1.6 rhenium, 1.2 boron, 0.043 magnesium, 0.018 titanium, and the balance is aluminum.

Embodiment 2

[0029] Preparation of copper-aluminum master alloy. Put 300kg A00# aluminum ingot into the natural gas furnace, heat to 800℃ to melt all the aluminum ingot, then add 150kg1# electrolytic copper plate into the furnace gradually at 3~5KG / time, and stir fully after each addition, Add the next copper plate until the copper plate is completely melted. At the same time, with the addition of the copper plate, gradually increase the temperature, and finally reach 1300 ° C. Continue to melt for 3 hours, complete the melting, pour into the mold, and get 2 kg / piece of copper-aluminum intermediate alloy.

Embodiment 3

[0031] Preparation of silicon-aluminum master alloy. Put 300kg of A00# aluminum ingot into the natural gas furnace, heat to 730°C to melt the aluminum ingot, then gradually add 150kg of metal silicon into the furnace at a rate of 3-5KG / time, and stir thoroughly after each addition until the metal The silicon is all melted, and then the next metal silicon is added. At the same time, with the addition of metal silicon, the temperature was gradually increased, and finally reached 1430 ° C, and the melting was continued for 1 hour to complete the melting, pouring into the mold, and obtaining a 1.5 kg / block silicon-aluminum master alloy.

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Abstract

The invention discloses an aluminum base alloy which comprises the following components in percent by weight: 38-40% of zinc, 0.5-5% of silicon, 3.0-5% of copper, 0.5-1% of manganese, 0.3-0.5% of chromium, 1.2-1.8% of rhenium, 1-1.5% of boron, 0.038-0.048% of magnesium, 0.015-0.02% of titanium and the balance of aluminum. The invention further discloses a preparation method thereof. The aluminum base alloy disclosed by the invention has the advantages of high wear resistance, no axle-hang, low expansion rate, self-lubrication, anti-occluding function and high work temperature, and the low expansion rate of the alloy is realized, so that the aluminum base alloy is suitable for manufacturing various precise friction pair parts of mechanical equipment.

Description

technical field [0001] The invention relates to a light alloy and a preparation method thereof, in particular to a high wear-resistant shaft-free aluminum base alloy and a preparation method thereof. Background technique [0002] Copper, oil and gas are the strategic resources of a country and the guarantee of national security. my country's copper resource reserves are relatively scarce and of low quality, but its annual consumption is second only to the United States. It needs to spend a lot of foreign exchange to import copper materials every year. It is rich in highly toxic and harmful elements such as lead, phosphorus, arsenic, beryllium, and cadmium. The casting process causes serious pollution to the surrounding environment. However, my country's aluminum resources are relatively rich, and there is a certain amount of aluminum ingots exported in exchange for foreign exchange every year. Upgrading of traditional industries to achieve sustainable scientific development....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/10C22C1/03
Inventor 邓才松邓鸿月
Owner 四川超耐磨高科技有限公司
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