Automobile balancing suspension part

A suspension and balancing technology, applied in the field of auto parts, can solve the problems of high price, less material, and increased cost, and achieve the effect of long service life, high strength, and increased graphite core

Inactive Publication Date: 2018-08-17
杨俊成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an important part of the car, the balance suspension requires materials with excellent mechanical properties and surface properties, but at present, there are few materials that can meet the above performance requirements, and the price is relatively expensive, resulting in increased costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A balance suspension for automobiles, which is prepared by inoculation spheroidization, iron mold sand-covered casting, followed by surface carburizing treatment; heat treatment steps, and the matrix material composition (mass percentage) of the balance suspension for automobiles:

[0024] C 3.9%, Si 3.1%, Mn 0.24%, S 0.01-0.02%, P 0.01-0.02%, Cu 0.33%, Nb 0.12%, Cr0.23%, Sb 0.14%, Mg0.014%, Ti0.036% , La 0.055%, Sn0.07%, W 0.042%, Co 0.048%, and the balance is Fe.

[0025] Dosing according to the composition of the elements and adding to the melting furnace, after the molten liquid is formed, the molten liquid is treated with the nodulizing agent by the injection method, the molten liquid is controlled at 1470°C, the holding time of spheroidizing is 10-15 minutes, and the ball The addition amount of the nodulizer is 1-3% of the total mass of the melt, the particle size of the nodulizer is 0.5-1mm, and the composition of the nodulizer is: Mg22%, Si5%, Nb1%, La0.3%, and ...

Embodiment 2

[0030] A balance suspension for automobiles, which is prepared by inoculation spheroidization, iron mold sand-covered casting, followed by surface carburizing treatment; heat treatment steps, and the matrix material composition (mass percentage) of the balance suspension for automobiles:

[0031] C 3.9%, Si 3.2%, Mn 0.22%, S 0.018%, P 0.012%, Cu 0.38%, Nb 0.11%, Cr 0.28%, Sb 0.13%, Mg 0.016%, Ti 0.045%, La 0.054% , Sn0.06%, W 0.05%, Co 0.055%, and the balance is Fe.

[0032] Dosing according to the composition of the elements and adding to the melting furnace, after the molten liquid is formed, the molten liquid is treated with the nodulizing agent by the injection method, the molten liquid is controlled at 1450°C, the holding time of the spheroidizing is 10-15 minutes, and the spheroidizing The addition amount of the nodulizer is 1-3% of the total mass of the melt, the particle size of the nodulizer is 0.5-1mm, and the composition of the nodulizer is: Mg24%, Si6%, Nb3%, La0.5...

Embodiment 3

[0037] A balance suspension for automobiles, which is prepared by inoculation spheroidization, iron mold sand-covered casting, followed by surface carburizing treatment; heat treatment steps, and the matrix material composition (mass percentage) of the balance suspension for automobiles:

[0038] C 4.0%, Si 2.8%, Mn 0.23%, S 0.011%, P 0.011%, Cu 0.33%, Nb 0.14%, Cr 0.29%, Sb 0.12%, Mg 0.02%, Ti 0.03%, La 0.058% , Sn0.075%, W 0.041%, Co 0.047%, and the balance is Fe.

[0039] Dosing according to the composition of the elements and adding to the melting furnace, after the molten liquid is formed, the molten liquid is treated with a nodulizing agent by using the nodulizing agent flushing method. The addition amount of the nodulizer is 1-3% of the total mass of the melt, the particle size of the nodulizer is 0.5-1mm, and the composition of the nodulizer is: Mg20%, Si2%, Nb2%, La0.3%, and the balance is Fe, then lower the melt to 1430°C, add an inoculant, the amount of the inoculant...

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PUM

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Abstract

The invention discloses an automobile balancing suspension part. The automobile balancing suspension part is prepared by the steps of: adopting process of inoculation spheroidization and sand-coveredcasting on an iron mold, and carrying out surface carburizing treatment in the following process; carrying out heat treatment. The automobile balancing suspension part made of spheroidal graphite castiron material with the components has the beneficial effects that the tensile strength (more than or equal to 950MPa), the yield strength (more than or equal to 580MPa) and the elongation (more thanor equal to 6.0%) completely meet the use requirements of the automobile balancing suspension part, wherein due to addition of various alloy components, especially the compounding action of polybasicalloy components including Cr, Sb, Mg, Ti, La, Sn, Cu, W and Co, the mechanical property of the common automobile balancing suspension parts is improved.

Description

technical field [0001] The invention relates to a balance suspension for automobiles, belonging to the technical field of automobile parts. Background technique [0002] The economic development of a country is inseparable from the development of industrial technology. In recent years, my country's automobile production technology has developed by leaps and bounds, and the performance requirements of metal materials used in various parts are getting higher and higher. Especially for automotive chassis parts, the metal materials used are required to have special properties such as high strength, high hardness, and corrosion resistance. As an important part of the automobile, the balance suspension requires materials with excellent mechanical properties and surface properties, but at present, there are few materials that can meet the above performance requirements, and the price is relatively expensive, resulting in increased costs. Contents of the invention [0003] In or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C37/06C22C37/04C22C33/10C23C8/22C23C8/80C21D1/18C21D5/00F16F15/28
Inventor 杨俊成
Owner 杨俊成
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