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Surface treatment method for automobile chassis parts

A technology for surface treatment and automobile chassis, applied in metal material coating process, melt spraying, coating and other directions, can solve the problems of easy residual stress of coating, low occlusion and bonding ability of workpiece substrate, etc., and achieve good comprehensive use quality, The effect of reducing stress and enhancing bond strength

Active Publication Date: 2017-12-01
阜南县申通机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, arc spraying relies on molten metal particles stacked on the surface of the workpiece. Under the action of external force, a certain gap will be generated at the joint of the mutual stacking.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for surface treatment of automobile chassis parts, comprising the steps of:

[0022] (1) Workpiece cleaning treatment:

[0023] First put the workpiece to be processed into warm water at 40°C for 15 minutes, then take it out and soak it in the degreasing solution for 20 minutes, and finally take it out for use;

[0024] (2) Sand blasting treatment:

[0025] After drying the workpiece processed in step (1), put it into an oxygen-free nitrogen protection environment for sandblasting. Before sandblasting, heat the temperature of the workpiece to 350°C, and control the sandblasting during sandblasting. The pressure of the workpiece is 1.8MPa. After the sandblasting is completed, the temperature of the workpiece is heated up to 390°C, and then the surface is sprayed with compressed nitrogen;

[0026] (3) Spraying treatment:

[0027] Perform arc spraying treatment on the workpiece processed in step (2). At this time, heat the workpiece to 450°C, and then perform a...

Embodiment 2

[0034] A method for surface treatment of automobile chassis parts, comprising the steps of:

[0035] (1) Workpiece cleaning treatment:

[0036] First put the workpiece to be processed into warm water at 45°C for 18 minutes, then take it out and soak it in the degreasing solution for 23 minutes, and finally take it out for use;

[0037] (2) Sand blasting treatment:

[0038] After drying the workpiece processed in step (1), put it into an oxygen-free nitrogen protection environment for sandblasting. Before sandblasting, heat the temperature of the workpiece to 360°C, and control the sandblasting during sandblasting. The pressure of the workpiece is 1.9MPa. After the sandblasting is completed, the temperature of the workpiece is heated up to 400°C, and then the surface is sprayed with compressed nitrogen;

[0039] (3) Spraying treatment:

[0040] Perform arc spraying treatment on the workpiece processed in step (2). At this time, the temperature of the workpiece is heated up t...

Embodiment 3

[0047] A method for surface treatment of automobile chassis parts, comprising the steps of:

[0048] (1) Workpiece cleaning treatment:

[0049] First put the workpiece to be processed into warm water at 50°C for 20 minutes, then take it out and soak it in the degreasing solution for 25 minutes, and finally take it out for use;

[0050] (2) Sand blasting treatment:

[0051] After drying the workpiece treated in step (1), put it into an oxygen-free nitrogen protection environment for sandblasting. Before sandblasting, heat the workpiece to 370°C, and control the sandblasting during sandblasting. The pressure of the workpiece is 2.0MPa. After the sandblasting is completed, the temperature of the workpiece is heated up to 410°C, and then the surface is sprayed with compressed nitrogen;

[0052] (3) Spraying treatment:

[0053] Perform arc spraying treatment on the workpiece processed in step (2). At this time, heat the workpiece to 460°C, and then perform arc spraying treatment...

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PUM

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Abstract

The invention discloses a surface treatment method for automobile chassis parts. The surface treatment method comprises the steps of (1) workpiece cleaning; (2) sand blasting; and (3) spraying treatment. The surface treatment method is reasonably optimized and improved, enhances the bonding strength of a spraying coating and a workpiece surface, and meanwhile reduces the stress produced during processing. The workpiece surface after final treatment has enhanced wear resistance and corrosion resistance, high fatigue strength and good integrated use quality.

Description

technical field [0001] The invention belongs to the field of automobile processing and manufacturing, and in particular relates to a surface treatment method for automobile chassis components. Background technique [0002] Cars are one of the common means of transportation in modern people's families. With the development of society, the sales of cars are constantly rising. Automobiles are assembled from a large number of parts, including chassis parts, which in turn include chassis frames, supports, fixing parts, connectors, etc. Most of the above parts are made of steel, but the steel itself is durable Corrosion and corrosion resistance is poor, and it needs to be surface treated before it can be used. There are many treatment methods for the surface of steel, spraying technology is one of them, and arc spraying is a relatively popular spraying technology now, its spraying quality is relatively stable, cost is low, safety is good, and production efficiency is high. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/131C23C4/06C23C4/02C23C4/18
CPCC23C4/02C23C4/06C23C4/131C23C4/18
Inventor 陈坦和陈明祥于初宏
Owner 阜南县申通机械制造有限公司
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