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A kind of automobile steering power cylinder piston

A power cylinder and piston technology, applied in the field of auto parts, can solve the problems affecting the steering stability of the car, affecting the cornering performance of the tire, etc., and achieve the effects of optimizing the friction interface, reducing spalling, and improving lubrication

Active Publication Date: 2021-10-08
NINGBO RUIFENG AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the difference in tire pressure affects the cornering performance of the tire, which in turn affects the handling stability of the car

Method used

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  • A kind of automobile steering power cylinder piston
  • A kind of automobile steering power cylinder piston

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Mixed powder: Weigh the material of alloy steel and ball mill it into mixed powder; wherein, the alloy steel material is composed of the following components in mass percentage: C: 0.1%, Si: 0.5%, Ti: 0.25%, Cr: 6.5% , Mo: 2.2%, P: 0.01%, micron aluminum powder: 0.1%, micronano graphene sheet: 0.2%, and the balance is Fe, wherein, the Cr element and Mo element are softened by hexadecyl amino acid fiber in advance Treatment, the particle size of the micron aluminum powder is 5 μm, the size of the micro-nano graphene sheet is 10mm*3mm; the rotating speed of the ball mill is 320r / min, the ball-to-material ratio is 4:1, and the ball milling time is 4h, The ball milling method is intermittent ball milling; the micron aluminum powder is pretreated micron aluminum powder, and the pretreatment method includes the following steps: slowly heating the micron aluminum powder at a heating rate of 20°C / min in an oxygen environment to 650°C;

[0027] Molding: The mixed powder is subj...

Embodiment 2

[0031] Mixed powder: Weigh the material of alloy steel and carry out ball milling to form mixed powder; wherein, the alloy steel material is composed of the following components in mass percentage: C: 0.12%, Si: 0.52%, Ti: 0.27% Cr: 6.7%, Mo: 2.25%, P: 0.02%, micron aluminum powder: 0.3%, micronano graphene sheet: 0.3%, and the balance is Fe, wherein, the Cr element and Mo element are softened by cetyl amino acid fiber in advance , the particle size of the micron aluminum powder is 6 μm, the size of the micro-nano graphene sheet is 10.5mm*3.5mm; the rotating speed of the ball mill is 325r / min, the ball-to-material ratio is 4.2:1, and the ball milling time is 4.2 h, the ball milling method is intermittent ball milling; the micron aluminum powder is a pretreated micron aluminum powder, and the pretreatment method includes the following steps: slowly treating the micron aluminum powder at a heating rate of 21° C. / min in an oxygen environment Heating to 660°C;

[0032] Forming: t...

Embodiment 3

[0036] Mixed powder: Weigh the material of alloy steel and carry out ball milling to form mixed powder; wherein, the alloy steel material is composed of the following components in mass percentage: C: 0.15%, Si: 0.57%, Ti: 0.29% Cr: 7.2%, Mo: 2.3%, P: 0.02%, micron aluminum powder: 0.4%, micronano graphene sheet: 04%, the balance is Fe, wherein, the Cr element and Mo element are softened by cetyl amino acid fiber in advance , the particle size of the micron aluminum powder is 8 μm, the size of the micro-nano graphene sheet is 11mm*4mm; the rotating speed of the ball mill is 330r / min, the ball-to-material ratio is 4.5:1, and the ball milling time is 4.5h, The ball milling method is intermittent ball milling; the micron aluminum powder is pretreated micron aluminum powder, and the pretreatment method includes the following steps: slowly heating the micron aluminum powder at a heating rate of 22° C. / min to 675°C;

[0037] Molding: The mixed powder is subjected to unidirectional ...

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Abstract

The invention relates to a piston, in particular to a steering power cylinder piston of an automobile, which belongs to the field of auto parts. The automobile steering power cylinder piston of the present invention is made of alloy steel material, and the alloy steel material is composed of the following components in mass percentage: C: 0.1-0.2%, Si: 0.5-0.62%, Ti: 0.25-0.32% Cr: 6.5‑8.0%, Mo: 2.2‑2.4%, P: ≤0.05%, micron aluminum powder: 0.1‑0.8%, micronano graphene sheet: 0.2‑0.65%, and the balance is Fe. In the present invention, Bi element is added to the graphite mold, Bi element not only acts as a lubricant but also acts as a stabilizer in the whole process, optimizes the friction interface, reduces the flaking of brittle phase graphite, and improves the lubrication and wear resistance of the composite material.

Description

technical field [0001] The invention relates to a piston, in particular to a steering power cylinder piston of an automobile, which belongs to the field of auto parts. Background technique [0002] During the driving process of the car, the air leakage of the front tire may cause the difference in the pressure of the left and right front tires. It can be seen that the difference in tire pressure affects the cornering performance of the tire, which in turn affects the handling stability of the car. The pressure of the left and right front tires of the car is different, and the rolling radii of the tires are different. When the vehicle is running straight, due to the different rolling radii of the left and right tires, when the vehicle is not turning, the vehicle always deviates in the direction of the small rolling radius, and the vehicle does not follow a straight line. Driving, causing the driver to constantly correct the steering wheel to control the driving of the vehicl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/04B22F1/00B22F3/02B22F3/14B22F3/24B22F5/00C22C38/28C22C38/22C22C38/06C22C38/02
CPCB22F1/0003C22C38/002C22C38/02C22C38/06C22C38/22C22C38/28B22F3/02B22F3/1216B22F3/14B22F3/24B22F5/008B22F9/04B22F2998/10B22F2999/00B22F2003/247B22F2009/043B22F1/145B22F2201/20
Inventor 邬建尧
Owner NINGBO RUIFENG AUTO PARTS
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