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Method for preparing high-strength copper substituting material

A high-strength, rod-based technology, applied in the field of preparation of high-strength copper substitute materials, can solve problems such as plasticity, toughness, and limitations

Inactive Publication Date: 2010-12-15
王吉岱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a structural part with high requirements for comprehensive mechanical properties, the high-strength copper-substituting materials prepared by the prior art have insufficient plasticity and toughness at relatively high temperatures, which limits their application and cannot be widely used. Used as a substitute for copper structural parts and copper alloy structural parts

Method used

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  • Method for preparing high-strength copper substituting material

Examples

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Effect test

Embodiment 1

[0017] A preparation method for high-strength copper-substituting materials. Heat the graphite crucible to 700°C with a resistance furnace, add aluminum blocks to the graphite crucible, sprinkle a covering agent on the surface of the molten aluminum after melting, and then add zinc to make zinc-aluminum Molten liquid, the consumption ratio of above-mentioned aluminum and zinc is based on 100 weight parts, and wherein aluminum is 38 weight parts, and zinc is 62 weight parts; In above-mentioned zinc-aluminum molten liquid, add mass fraction respectively and be 2.7% copper, 0.2% Rare earth cerium, 0.075% zirconium and 0.4% bismuth, and slowly stirred. Then, use a graphite bell jar to press 0.2% magnesium into the above-mentioned graphite crucible, and cover the surface of the molten liquid with 0.1% rare earth oxide and strontium salt modifier. Hold for 10 minutes with proper agitation; then press into C 2 Cl 6 Degassing with degassing agent, standing still, removing slag and c...

Embodiment 2

[0019] A preparation method for high-strength copper-substituting materials. Heat the graphite crucible to 700°C with a resistance furnace, add aluminum blocks to the graphite crucible, sprinkle a covering agent on the surface of the molten aluminum after melting, and then add zinc to make zinc-aluminum Molten liquid, the consumption proportion of above-mentioned aluminum and zinc is based on 100 weight parts, and wherein aluminum is 38 weight parts, and zinc is 62 weight parts; In above-mentioned zinc-aluminum molten liquid, adding mass fraction is respectively the copper of 2.7%, the copper of 0.22%. Rare earth cerium, 0.12% zirconium and 0.63% bismuth, and slowly stirred. Then, use a graphite bell jar to press 0.2% magnesium into the above-mentioned graphite crucible, and cover the surface of the molten liquid with 0.1% rare earth oxide and strontium salt modifier. Hold for 10 minutes with proper agitation; then press into C 2 Cl 6 The degassing agent is degassed, and the...

Embodiment 3

[0021] A preparation method for high-strength copper-substituting materials. Heat the graphite crucible to 700°C with a resistance furnace, add aluminum blocks to the graphite crucible, sprinkle a covering agent on the surface of the molten aluminum after melting, and then add zinc to make zinc-aluminum Molten liquid, the consumption ratio of above-mentioned aluminum and zinc is based on 100 weight parts, and wherein aluminum is 38 weight parts, and zinc is 62 weight parts; In above-mentioned zinc-aluminum molten liquid, add mass fraction respectively and be 2.7% copper, 0.25% Rare earth cerium, 0.12% zirconium and 0.7% bismuth, and slowly stirred. Then use a graphite bell jar to press 0.2% magnesium into the above-mentioned graphite crucible, and cover the surface of the molten liquid with a mass fraction of 0.1% rare earth oxide and a strontium salt modifier. Keep it under the temperature for 10 minutes, and stir it properly; then press into C 2 Cl 6 The degassing agent is...

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Abstract

The invention discloses a method for preparing a high-strength copper substituting material, which comprises the following steps of: (1) heating a graphite crucible in a resistance furnace, adding an aluminum block and a zinc block in a selected utilization ratio into the graphite crucible to prepare zinc-aluminum mixed melt, adding a selected use amount of copper, rare-earth cerium, zirconium and bismuth into the melt respectively, and slowly stirring the melt; (2) pressing a selected use amount of magnesium into the crucible by using a graphite bell jar, then covering a proper amount of rare-earth oxide and strontium salt modifier on the surface of the melt, adding C2Cl6 degasifying agent into the melt to perform degassing after full melting, standing the melt for certain time, and slagging off and pouring the melt; and (3) injecting the alloy melt into a metal die or a continuous casting machine type port, and cooling the alloy melt through a condenser to obtain an alloy test bar or a bar material. Mechanical property test shows that the tensile strength of the high-strength copper substituting material prepared by the method is 120 to 176MPa at 180 DEG C, and the tensile strength is 180 to 334MPa at 120 DEG C; and practice inspection shows that the material can fully substitute a copper material and is used for preparing copper and copper alloy structural members.

Description

technical field [0001] The invention relates to a preparation method of a high-strength copper-substituting material, and more specifically relates to a preparation method of a high-strength, creep-resistant high-aluminum zinc-based alloy that can be used to make copper and copper alloy structural parts. Background technique [0002] The high-strength copper substitute material is based on the addition of a certain amount of other non-ferrous metals on the basis of the ZA alloy. The cost increase is not large, but the comprehensive performance has reached the comprehensive performance index of brass. It is used to replace copper and copper alloy structural parts. In addition, according to tests, the density of brass is 1.68 times that of zinc-aluminum alloys, that is, the volume of zinc-aluminum alloys of the same weight is 1.68 times the volume of brass, which can produce 1.68 times more products than brass. In recent years, the price of non-ferrous metals It has been incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C18/04C22C1/02B22D11/04
Inventor 王吉岱孙静纪刚田秀娟杨兴华孙爱芹
Owner 王吉岱