Treatment technology of automobile wheel assembly before painting primer

A treatment process and wheel technology, which can be used in surface pretreatment, devices for applying liquid to surfaces, coatings, etc., which can solve the problems of difficult wastewater treatment, large footprint, and environmental pollution.

Inactive Publication Date: 2005-01-26
CHINA NATIONAL HEAVY DUTY TRUCK GROUP
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  • Abstract
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Problems solved by technology

At present, all domestic wheel manufacturers use pickling process to achieve the purpose of rust removal, and strong acid is used for pickling. Build a special pickling pool, which takes up a lot of space

Method used

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  • Treatment technology of automobile wheel assembly before painting primer

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Embodiment

[0017] Example: As shown in the accompanying drawings, the treatment process before the primer coating of the automobile wheel assembly is: shot blasting 1, pre-cleaning 2, on-line 3, degreasing 4, primary washing 5, secondary washing 6, phosphating 7 , three washings 8 and clean deionized water washing 9.

[0018] Include the following nine steps:

[0019] a. Hang the wheel assembly with the corresponding shot blasting hanger into the shot blasting machine for shot blasting;

[0020] b. Use compressed air to clean the floating ash and steel shots on the surface of the workpiece;

[0021] c. Hang the workpiece with a swimming paint hanger;

[0022] d. Enter the alkali washing tank for degreasing treatment;

[0023] e. Perform a water wash;

[0024] f. Carry out secondary washing;

[0025] g. Phosphating the workpiece;

[0026] h, wash three times;

[0027] i. Wash with clean deionized water.

[0028] The present invention no longer adopts the general strong acid pickli...

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Abstract

The invention provides a process before the car wheel assembly paint is coated. It includes following steps: a. the wheel assembly is impeller blasted in the impeller blasting machine with correspondent suspending machine; b. cleans the floating ash, steel pills and so on the surface of the piece with compressed air; c. the piece is suspended with swimming suspending machine; d. carries on degreasing process in the alkali washing groove; e. carries on one time of water clean; f. carries on the secondary water washing; g. carries on phosphorization process; h. carries on the third time of clean; i. it is cleaned with deioned water. After the process, the rust and oil can be eliminated.

Description

(1) Technical field [0001] The invention relates to a pre-treatment process for paint coating of automobile wheels, which belongs to the field of paint coating technology. (2) Background technology [0002] The rust removal process is required in the treatment process before the primer coating of the automobile wheel assembly. At present, all domestic wheel manufacturers use pickling process to achieve the purpose of rust removal, and strong acid is used for pickling. Build a special pickling pool, which takes up a lot of space. (3) Contents of the invention [0003] The invention aims at the deficiencies of the prior art, and provides an efficient and pollution-free treatment process before painting the primer of the automobile wheel assembly. [0004] The solution adopted by the present invention comprises the following steps: [0005] a. Hang the wheel assembly with the corresponding shot blasting hanger into the shot blasting machine for shot blasting; [0006] b. ...

Claims

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Application Information

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IPC IPC(8): B05D3/00
Inventor 马锡洪于家选李洪良
Owner CHINA NATIONAL HEAVY DUTY TRUCK GROUP
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