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Technical process for spraying and coating electrostatic powder on surface of metal workpiece

A technology of surface spraying and process flow, which is applied to the device for coating liquid on the surface, pretreatment surface, coating, etc. It can solve the problems of short repair time interval, polluted air, limited anti-aging time, etc., to achieve compact connection, Professional effect

Inactive Publication Date: 2015-04-29
SHANDONG GOLDKING ELECTRICAL APPLIANCES
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AI Technical Summary

Problems solved by technology

[0002] It turns out that large-area metal workpiece surfaces or complex workpiece surfaces need to be treated by spraying paint. During the spraying process, the paint will not only pollute the air and damage the operator's body due to the atomization of the paint, but also cause damage to the operator's body because the paint cannot be recycled. The cost remains high. At the same time, the anti-aging time of the surface of the workpiece is limited after painting, and the repair time interval is short, so few construction units reuse it. At present, the technology that replaces the surface painting of the workpiece is the plastic spraying technology. will have adverse effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0006] Embodiment 1, taking the plastic-sprayed zinc alloy bracket as an example: pre-treatment process: soak the workpiece in a PH0.5-1.5 derusting solution for 20-30 minutes to derust; The cleaned workpiece is soaked in PH12-13 degreasing solution for 10-20 minutes to degrease; after degreasing, take out and wash in water; the workpiece is soaked in PH2-3 phosphating solution for 10-30 minutes for phosphating and then take it out to dry Drying; drying process requirements for parts after cleaning: 1. Drying environment: The drying environment has good ventilation, sufficient light, and there is no dust and particles of dust falling around the drying area; Go to a location where wind and dust cannot blow or in the house to dry; in rainy weather, the washed parts need to be placed on the net bed to dry the water and then placed in the oven for drying; 2. Requirements for the drying net: the drying net should be kept rust-free If there is rust, it should be painted in time o...

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Abstract

The invention relates to a technical process for spraying and coating electrostatic powder on the surface of a metal workpiece. The technical process comprises the steps of workpiece surface pre-treatment including derusting, water washing, deoiling, water washing and phosphorization; cleaned part drying: natural sunlight drying or baking in a baking oven after complete water draining; powder spraying technical processes including selection, element hanging, powder spraying and baking. The technical process for spraying and coating electrostatic powder on the surface of the metal workpiece has the advantages that high plastic film adhesive force of the surface of the workpiece can be ensured, the fluidity is good, the color is pure, the anti-aging time is long, the repair rate is low, and the technical process is particularly suitable for surface treatment on outdoor workpieces.

Description

technical field [0001] The invention relates to a process flow for spraying electrostatic powder on the surface of a metal workpiece for plastic spraying treatment on the surface of the metal workpiece. Background technique [0002] It turns out that large-area metal workpiece surfaces or complex workpiece surfaces need to be treated by spraying paint. During the spraying process, the paint will not only pollute the air and damage the operator's body due to the atomization of the paint, but also cause damage to the operator's body because the paint cannot be recycled. The cost remains high. At the same time, the anti-aging time of the surface of the workpiece is limited after painting, and the repair time interval is short, so there are few construction units to reuse it. At present, the spraying technology is used to replace the surface painting of the workpiece. will have adverse effects. Contents of the invention [0003] In order to solve the above-mentioned p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/06B05D3/10B05D3/02
Inventor 温永林
Owner SHANDONG GOLDKING ELECTRICAL APPLIANCES
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