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Alloy material of copper, nickel, silicon and bronze and preparation method thereof

A technology of bronze alloy and copper-nickel-silicon, which is applied in the field of copper-nickel-silicon bronze alloy materials and its preparation, can solve the problems of conductivity, friction resistance coefficient, and corrosion resistance that cannot meet the needs of high-speed railway development, and achieve the elimination of coarse-grained rings Microstructure, small temperature rise, and less wear

Inactive Publication Date: 2010-06-02
甘肃大鑫铜业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Silicon bronze alloy is an important material in the reconstruction and expansion of high-speed electrified railways. The quality of the alloy affects the safety, cost and efficiency of railway transportation. Several existing bronze alloys have strength, conductivity, friction coefficient, Corrosion resistance and other comprehensive properties can no longer meet the needs of high-speed railway development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Select 1000 kg of No. 1 electrolytic copper, 20 kg of No. 1 electrolytic nickel plate, 6 kg of silicon, and 0.8 kg of rare earth alloy. Put the No. 1 electrolytic copper and No. 1 electrolytic nickel plate into a 1-ton intermediate frequency electric furnace for smelting, and the power of the electric furnace is 500 kilowatts. After the two metals form liquid metal, silicon and rare earth alloys are added. This is the melting temperature of 1340°C, homogenized stirring, and detection of chemical composition; nickel and silicon content; after the detection is completed, the smelted metal melt is put into semi-automatic continuous vibration casting Machine casting, casting temperature: 1280°C, casting speed: 4.6m / h, casting water pressure: 0.2kg / cm at the beginning 2 , normally 0.3kg / cm 2 ~0.8kg / cm 2 , the finally obtained ingot specification is Ф145×L (mm), and dry soot is used as a covering agent on the cast ingot; the above-mentioned ingot is cut into a semi-finished ...

Embodiment 2

[0045] Select 900 kg of No. 1 electrolytic copper, 18 kg of No. 1 electrolytic nickel plate, 5.4 kg of silicon, and 0.8 kg of rare earth alloy. Melt in a 1-ton intermediate frequency electric furnace with a power of 500 kW. The order of feeding: electrolytic copper, electrolytic nickel → forming liquid metal → adding Silicon, rare earth additives→heating melting, melting temperature 1340°C, homogenization and stirring, testing chemical composition: nickel, silicon content; put No. When the two metals form liquid metals, silicon and rare earth alloys are added. This is the melting temperature of 1340 ° C. Homogenize and stir to detect the chemical composition; nickel and silicon content; after the detection is completed, put the melted metal into the semi-automatic continuous vibration Casting machine casting, casting temperature: 1280°C, casting speed: 4.6m / h, casting water pressure: 0.2kg / cm at the beginning 2 , normally 0.3kg / cm 2 ~0.8kg / cm 2 , the finally obtained ingot s...

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Abstract

The invention discloses an alloy material of copper, nickel, silicon and bronze and a preparation method thereof. The alloy material comprises the following substances in percent by weight: 1.6% to 2.2% of nickel, 0.4% to 0.8% of silicon, 0.008% of rare earth alloy and 96.002% to 97.002% of copper. The alloy material of copper, nickel, silicon and bronze is prepared by the processes of proportioning, melting, casting, sawing, extruding, drawing, straightening, inspecting and packing into a warehouse, enhances the stress corrosion resistant capability, and has the main performance change of reducing a hardness value and the grain size.

Description

technical field [0001] The invention belongs to the field of alloy material manufacture, and in particular relates to a copper-nickel-silicon bronze alloy material and a preparation method thereof. Background technique [0002] Silicon bronze alloy is an important material in the reconstruction and expansion of high-speed electrified railways. The quality of the alloy affects the safety, cost and efficiency of railway transportation. Several existing bronze alloys have strength, conductivity, friction coefficient, Comprehensive properties such as corrosion resistance can no longer meet the needs of high-speed railway development. Contents of the invention [0003] The object of the present invention is to provide a copper-nickel-silicon bronze alloy material with high strength, high friction resistance and corrosion resistance and a preparation method thereof. [0004] To achieve the above object, the solution of the present invention is: a copper-nickel-silicon bronze al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06B22D11/16C22F1/08
Inventor 周尚智张玉武郝发强朱志良张静包仲奇
Owner 甘肃大鑫铜业有限责任公司
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