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Spraying technology of wheel hub surface coatings

A technology of wheel hub surface and coating, which is applied to the device, coating, pretreatment surface and other directions of coating liquid on the surface, can solve the problems of increasing manufacturing cost, lengthening production cycle, and troublesome wheel hub spraying, and achieves good sealing, Excellent adhesion, compact and tidy coating effect

Inactive Publication Date: 2018-06-15
ANHUI HENGXING WHEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The wheel hub of a car is very important, and the spraying of the wheel hub in general is very troublesome. It often needs to be sprayed and polished again and again, which will waste a lot of time, so that the production cycle will be lengthened and the manufacturing cost will be increased.

Method used

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  • Spraying technology of wheel hub surface coatings
  • Spraying technology of wheel hub surface coatings
  • Spraying technology of wheel hub surface coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of spraying process of hub surface coating, comprises the steps:

[0024] ①Surface treatment: use ethanol to clean the hub surface and inner wall surface to remove surface pollutants;

[0025] ② Fixing: Fix the formed wheel hub on the suspension bracket well, do not touch the place that needs to be sprayed, and use rubber in the hole of the wheel hub to isolate it from the equipment to ensure that the wheel hub will not be worn;

[0026] ③Workpiece preheating: apply primer to the hub, put the workpiece into a heat treatment furnace for preheating, and place it in an oven at a temperature of 115°C-140°C for 25min-45min, so that the primer is cured and the workpiece is preheated;

[0027] ④ One-time spraying: Use a small-caliber spray gun to spray the protective coating on the surface and inner wall of the hub, the spraying pressure is 0.20-0.30MPa, and the spraying distance is 10-20cm;

[0028] ⑤Heating up: use the electric heating plate heating method to heat up...

Embodiment 2

[0031] A kind of spraying process of hub surface coating, comprises the steps:

[0032] ①Surface treatment: use ethanol to clean the hub surface and inner wall surface to remove surface pollutants;

[0033] ② Fixing: Fix the formed wheel hub on the suspension bracket well, do not touch the place that needs to be sprayed, and use rubber in the hole of the wheel hub to isolate it from the equipment to ensure that the wheel hub will not be worn;

[0034] ③Workpiece preheating: apply primer to the hub, put the workpiece into a heat treatment furnace for preheating, and place it in an oven at a temperature of 115°C-140°C for 25min-45min, so that the primer is cured and the workpiece is preheated;

[0035] ④ One-time spraying: Use a small-caliber spray gun to spray the protective coating on the surface and inner wall of the hub, the spraying pressure is 0.20-0.30MPa, and the spraying distance is 10-20cm;

[0036] ⑤Heating up: use the electric heating plate heating method to heat up...

Embodiment 3

[0040] A kind of spraying process of hub surface coating, comprises the steps:

[0041] ①Surface treatment: use ethanol to clean the hub surface and inner wall surface to remove surface pollutants;

[0042] ② Fixing: Fix the formed wheel hub on the suspension bracket well, do not touch the place that needs to be sprayed, and use rubber in the hole of the wheel hub to isolate it from the equipment to ensure that the wheel hub will not be worn;

[0043] ③Workpiece preheating: apply primer to the hub, put the workpiece into a heat treatment furnace for preheating, and place it in an oven at a temperature of 115°C-140°C for 25min-45min, so that the primer is cured and the workpiece is preheated;

[0044] ④ One-time spraying: Use a small-caliber spray gun to spray the protective coating on the surface and inner wall of the hub, the spraying pressure is 0.20-0.30MPa, and the spraying distance is 10-20cm;

[0045] ⑤Heating up: use the electric heating plate heating method to heat up...

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Abstract

The invention provides a spraying technology of wheel hub surface coatings, and relates to the technical field of automotive component processing. The spraying technology comprises the following steps: performing surface treatment; fixing, namely, fixing a formed wheel hub on a hanging bracket well without touching places need to spray, and isolating the wheel hub from equipment by using rubber inholes of the wheel hub, so as to ensure that the wheel hub will not wear out; performing workpiece preheating and applying a primer to the wheel hub, namely, putting the workpiece into a heat treatment furnace for preheating, then putting the workpiece into an oven with a temperature of 115-140 DEG C, and staying for 25-45 min, so as to make the primer cured and the workpiece preheated; performing primary spraying; raising the temperature; and performing secondary spraying. According to the spraying technology, reasonable raw materials and proportions are selected and used, the raw materialswork synergistically and complement each other, the adhesion is extremely excellent, the sealing property is extremely good, the coating film is compact and neat, does not crack, does not swell, and is corrosion resistant, making the wheel hub can adapt to extremely complex environments.

Description

technical field [0001] The invention relates to the technical field of auto parts processing, in particular to a spraying process of a wheel hub surface coating. Background technique [0002] The wheel hub is also called the rim, the wheel, and the tire bell. It is a barrel-shaped, center-mounted metal part that supports the tire on the inner profile of the tire. There are many types of hubs according to diameter, width, molding method and material. [0003] The appearance of the wheels of ordinary models is less considered. Good heat dissipation is a basic requirement. The process is basically treated with baking paint, that is, spraying first and then electric baking. The cost is relatively economical and the color is beautiful and lasts for a long time. Even if the vehicle is scrapped , the color of the wheel remains unchanged. The surface treatment process of many Volkswagen models' wheels is baking paint, such as Santana 2000, Xiali Junya, Times Pride, Southeast Lings...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12C09D191/06C09D5/08C09D7/61C09D7/63B05D7/14B05D7/00B05D3/10
Inventor 年君
Owner ANHUI HENGXING WHEEL
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