Method of spraying and coating electric automobile coating piece surface and enabling painting surface to have reflective effect at night

A technology for surface spraying and electric vehicles, which is applied to the device for coating liquid on the surface, pretreatment surface, coating and other directions, which can solve the problems of primer and topcoat layer adhesion drop, unqualified workpiece, workpiece repair and other problems. Achieve the effect of saving painting time and energy, providing safety, and solving poor adhesion between layers

A technology for surface spraying and electric vehicles, which is applied to the device for coating liquid on the surface, pretreatment surface, coating and other directions, which can solve the problems of primer and topcoat layer adhesion drop, unqualified workpiece, workpiece repair and other problems. Achieve the effect of saving painting time and energy, providing safety, and solving poor adhesion between layers

CN103286052AInactive Publication Date: 2013-09-11HEFEI HUAXIN ELECTRIC VEHICLE TECH DEV

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] A method for spraying the surface of an electric vehicle painted part and having a reflective effect on the paint surface at night,

[0027] In order to achieve the above object, the technical scheme of the present invention is as follows:

[0028] Preparation of spray powder:

[0029] Raw materials and ratio:

[0030] Saturated polyester 50-74% (mass percentage, the same below)

[0031] Amino resin 20-30%

[0032] Epoxy resin 3-8%

[0033] Metal powder or ore powder 2-5%

[0034] Color masterbatch 2-5%

[0035] Auxiliary 3-6%

[0036] The metal powder is aluminum powder or copper powder, and the ore powder is pearlescent dye.

[0037] After mixing saturated polyester, amino resin, epoxy resin particles and color masterbatch particles in a mixer, heat them in an extruder and extrude them into a rod shape, then cool, cut, crush and grind them into powder, and then mix them with The metal powder or ore powder is fully mixed in a ball mill or a mixer, and after a...

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PUM

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Abstract

The invention discloses a method of spraying and coating an electric automobile coating piece surface and enabling a painting surface to have a reflective effect at night. The production method includes the steps of conducting preprocessing, conducting primer spraying and baking, conducting floating coating, conducting naturally leveling and surface drying, conducting finishing coat spraying, conducting baking and the like. The phenomenon that lifting occurs to a sprayed finishing coat when primer is not dried is eliminated, the problem that interlayer adhesion is poor due to excessive baking is solved, meanwhile, spraying time and energy are saved, the finishing coat of a coating piece plays a role in reflecting light, and safety is improved when an electric automobile conducts safe operation at night.

Description

technical field [0001] The invention relates to a painting process for painted parts of an electric vehicle, in particular to a method for spraying the surface of a painted part of an electric car and having a reflective effect on the painted surface at night. Background technique [0002] At present, the spraying process of the painted parts of electric vehicles mainly adopts the method of spraying and baking, and baking is done every time spraying. The specific spraying process is: workpiece degreasing, dust β†’ spraying primer β†’ baking β†’ spraying topcoat β†’ Baking. The spraying products processed in this way can meet the requirements of general conditions, but cannot be used at night, that is, when safety requirements are required. For example: the front and rear bumpers and the left and right sides of the body of an electric sanitation vehicle working at night. [0003] And in the production process, the workpiece is baked after the primer is sprayed. When the workpiec...

Claims

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Application Information

Patent Timeline
11 Sep 2013
Publication
CN103286052A
IPC
B05D7/14; B05D3/02
Inventors
杨善ζ˜₯; 马建刚