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Spline shaft coating process

A coating process, spline shaft technology, applied in coatings, devices for coating liquids on surfaces, special surfaces, etc., can solve problems such as poor bonding force between coating materials and metal substrates, complex processes, and poor wear resistance. , to achieve the effect of reducing processing cost, coating uniformity, improving wear resistance and service life

Inactive Publication Date: 2018-06-15
JIANGYIN YONGXING MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a spline shaft coating process to solve the problems of complex process, high cost, poor wear resistance, and bonding force between the coating material and the metal substrate in the existing spline shaft coating process proposed in the above background technology. poor quality problem

Method used

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  • Spline shaft coating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A spline shaft coating process. The spline shaft coating process includes the following steps:

[0021] S1: Workpiece pretreatment: clean the surface of the spline shaft with a detergent, and use sandblasting to remove oil, impurities and rust on the surface of the spline shaft. The blasting angle of the sandblasting treatment is 45 degrees, and the sand speed is 30m / s, sandblasting time is 5 minutes, then check the integrity of the spline shaft, wash after passing the inspection, the washing temperature is 30 degrees Celsius, after washing, use hot air to dry, the drying temperature is 60 degrees Celsius, drying The time is 35 minutes;

[0022] S2: Dip coating primer: After the pretreated spline shaft is naturally cooled, dip a layer of primer on the surface of the spline shaft, the thickness of the primer is 25 microns, and the primer is high temperature epoxy resin ;

[0023] S3: Coating: Put the spline shaft dipped in primer into a high-frequency heating machine for preh...

Embodiment 2

[0026] A spline shaft coating process. The spline shaft coating process includes the following steps:

[0027] S1: Workpiece pretreatment: Clean the surface of the spline shaft with a detergent, and use sandblasting to remove oil, impurities and rust on the surface of the spline shaft. The blasting angle of the sandblasting treatment is 30 degrees, and the sand body speed is 20 meters per second, sandblasting time is 3 minutes, then check the integrity of the spline shaft, wash after passing the inspection, the washing temperature is 25 degrees Celsius, after washing, use hot air drying, the drying temperature is 50 degrees Celsius, drying The time is 25 minutes;

[0028] S2: Dip coating primer: After the pretreated spline shaft is naturally cooled, dip a layer of primer on the surface of the spline shaft, the thickness of the primer is 15 microns, and the primer is high temperature epoxy resin ;

[0029] S3: Coating: Put the spline shaft dipped in primer into a high-frequency heat...

Embodiment 3

[0032] A spline shaft coating process. The spline shaft coating process includes the following steps:

[0033] S1: Workpiece pretreatment: clean the surface of the spline shaft with detergent, and use sandblasting to remove oil, impurities and rust on the surface of the spline shaft. The blasting angle of the sandblasting treatment is 40 degrees, and the sand body speed is 25m / s, sandblasting time is 4 minutes, then check the integrity of the spline shaft, wash after passing the inspection, the washing temperature is 27 degrees Celsius, after washing, use hot air drying, the drying temperature is 55 degrees Celsius, drying The time is 30 minutes;

[0034] S2: Dip coating primer: After the pretreated spline shaft is naturally cooled, dip a layer of primer on the surface of the spline shaft, the thickness of the primer is 20 microns, and the primer is high temperature epoxy resin ;

[0035] S3: Coating: Put the spline shaft dipped in the primer into a high-frequency heating machine f...

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Abstract

The invention discloses a spline shaft coating process in the technical field of machining. The spline shaft coating process comprises the following steps of S1, preprocessing a workpiece; S2, dip-coating a primer: after naturally cooling the preprocessed spline shaft, dip-coating a layer of primer on a surface of the spline shaft, wherein the thickness of the primer is 15 to 25 micrometers; S3, coating; and S4, cooling and detecting: putting the coated spline shaft into hot water, cooling for 25 to 35 minutes, then taking out, naturally cooling, and finally detecting. According to the splineshaft coating process provided by the invention, a high temperature resistant epoxy resin is adopted as the primer, so that a surface of the spline shaft is prevented from being oxidized during a heating process; an electrostatic spraying is adopted for spraying, so that the processing cost is greatly reduced, and the spline shaft coating process is convenient to operate and uniform in coating; and PA11 granular type nylon powder and nanometer aluminum oxide powder are adopted, so that a wear-resisting property and the service life of the spline shaft are greatly improved.

Description

Technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a spline shaft coating process. Background technique [0002] The spline shaft is a kind of mechanical transmission. The flat key, half-circle key, and oblique key are the same, and they all transmit mechanical torque. There are longitudinal keyways on the surface of the shaft, and the rotating parts on the shaft also have corresponding keyways to maintain Rotate synchronously with the axis. While rotating, some can also slide longitudinally on the shaft, such as gearbox shift gears. The traditional spline shaft has high processing requirements (requires heat treatment, fine grinding, etc.). During work, the steel parts are in direct contact with the steel parts. The fit gap is large, the friction force is large, and the wear is easy, especially when the car is running at high speed or When the road conditions are bad, it is easy to produce abnormal noise and severe ji...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/08B05D7/14B05D3/00B05D7/24B05D1/06
CPCB05D1/06B05D3/002B05D3/007B05D5/08B05D7/14B05D7/24B05D7/54B05D2451/00B05D2504/00B05D2505/00B05D2601/20B05D2420/01B05D2420/02B05D2401/40B05D2401/32
Inventor 陈永兴陈斌陈丽
Owner JIANGYIN YONGXING MACHINERY MFG
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