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Wear-resistant copper alloy material and casting method thereof

An alloy material and wear-resistant copper technology, applied in the CuAl10Ni wear-resistant copper alloy material and its casting field, can solve the problems of poor wear resistance, poor comprehensive mechanical properties, poor corrosion resistance, etc.

Active Publication Date: 2014-02-19
株洲联诚集团铸业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional air spring positioning guide sleeve of rail transit vehicles is made of cast aluminum bronze (ZCuAl9Mn2) according to the national standard GB / T1176-1987, which has the disadvantages of poor comprehensive mechanical properties, poor wear resistance and poor corrosion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 A casting method of CuAl10Ni wear-resistant copper alloy material, characterized in that the

[0028] The CuAl10Ni wear-resistant copper alloy material is smelted and casted according to the following raw material weight ratio ingredients and process methods and steps:

[0029] The weight proportion of each raw material described is:

[0030] 20 parts by weight of aluminum-copper master alloy, 5.3 parts by weight of nickel plate,

[0031] 4.5 parts by weight of pure iron, 69 parts by weight of electrolytic copper,

[0032] 1 weight part of manganese metal, 0.4 weight part of hexachloroethane,

[0033] 5 parts by weight of cullet;

[0034] Among them, the aluminum-copper master alloy contains 50% Al and the rest is Cu;

[0035] The nickel plate contains Ni ≥99.5%;

[0036] Pure iron contains Fe≥99%;

[0037] Manganese metal contains Mn≥99%;

[0038] The chemical composition of CuAl10Ni wear-resistant copper alloy material is as follows:

[0039] Cu≥7...

Embodiment 2

[0047] Embodiment 2 A casting method of a CuAl10Ni wear-resistant copper alloy material is characterized in that the CuAl10Ni wear-resistant copper alloy material is smelted and cast according to the following raw material weight ratio ingredients and process methods and steps:

[0048] The weight proportion of each raw material described is:

[0049] 25 parts by weight of aluminum-copper master alloy, 4 parts by weight of nickel plate,

[0050] 3 parts by weight of pure iron, 65 parts by weight of electrolytic copper,

[0051] 1.7 parts by weight of manganese metal, 0.3 parts by weight of hexachloroethane,

[0052] 4 parts by weight of cullet;

[0053] Its casting technique method and steps are identical with embodiment one.

Embodiment 3

[0055]A casting method of a CuAl10Ni wear-resistant copper alloy material, characterized in that the CuAl10Ni wear-resistant copper alloy material is smelted and cast according to the following raw material weight ratio ingredients and process methods and steps:

[0056] The weight proportion of each raw material described is:

[0057] 16 parts by weight of aluminum-copper master alloy, 4 parts by weight of nickel plate,

[0058] 4 parts by weight of pure iron, 75 parts by weight of electrolytic copper,

[0059] 1.5 parts by weight of manganese metal, 0.5 parts by weight of hexachloroethane,

[0060] 2 parts by weight of cullet;

[0061] Its casting technique method and steps are identical with embodiment one.

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Abstract

The invention relates to a wear-resistant copper alloy material and a casting method thereof, wherein total seven raw materials, including an aluminum-copper alloy, a nickel plate, pure iron, electrolytic copper, metal manganese, hexachloroethane and cullet, are employed; the CuAl10Ni wear-resistant copper alloy material is obtained through the steps of stove charging, melting, sodium fluoroaluminate doping and sand mold test sample casting, casting molding and the like; and the mechanical properties of the obtained wear-resistant copper alloy material reach the following standards: yield strength B0.2: more than or equal to 270N / mm<2>; tensile strength Bb: more than or equal to 600N / mm<2>; elongation sigma5: more than or equal to 12%; and Brinell hardness HBW: more than or equal to 140; the wear-resistant copper alloy material is specially used for manufacture of the positioning guide sleeve of the air spring of a rail transit vehicle, and has excellent comprehensive mechanical properties, and extremely high abrasive resistance and corrosion resistance; and the service life of the wear-resistant copper alloy material is twice as long as that the service life of the traditional ZCuAl9Mn2(S) material.

Description

technical field [0001] The invention relates to a CuAl10Ni wear-resistant copper alloy material and a casting method thereof; in particular, it relates to a CuAl10Ni wear-resistant copper alloy material and a casting method thereof for a rail transit vehicle air spring positioning guide sleeve product. Background technique [0002] The traditional rail vehicle air spring positioning guide sleeve is made of cast aluminum bronze (ZCuAl9Mn2) according to the national standard GB / T1176-1987, which has the disadvantages of poor comprehensive mechanical properties, poor wear resistance and poor corrosion resistance. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned shortcoming and deficiency, provide a kind of CuAl10Ni copper alloy material and its casting method that a kind of tensile strength and yield strength are high, wear resistance and corrosion resistance are excellent, elongation is high and service life is long; [0...

Claims

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Application Information

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IPC IPC(8): C22C9/01C22C1/03
Inventor 陈留根尹社新许松桔
Owner 株洲联诚集团铸业有限责任公司
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