CN105689219A - Electrostatic spraying process - Google Patents

Abstract

The invention discloses an electrostatic spraying process. The process is characterized by comprising the following steps that (1) pretreatment is carried out, specifically, deoiling, derusting, phosphorization and passivation are carried out; (2) a layer of powder coating is evenly sprayed to the surface of a workpiece through the electrostatic adsorption principle, and falling powder is recovered through a recovery system and then screened and reused; and (3) high-temperature curing is conducted, specifically, the workpiece coated with the powder coating is pushed into a curing oven and heated to a preset temperature, generally 185 DEG C, then heat preservation is conducted for 15 minutes, and a finished product can be obtained after the workpiece is taken out of the oven and cooled. According to the process, the method is simple, multiple repeated procedures are omitted, and work efficiency is improved.

Description

A kind of electrostatic painting process

Technical field

The present invention relates to a kind of electrostatic painting process。

Background technology

Existing electrostatic painting process is more complicated, also without unified specification, it does not have unified standard, and sandblasting quality is uneven, and a lot of operations that repeat also make under production efficiency, increases the work burden of workman, makes the competitiveness of product in market not high simultaneously。For some operators just entered a profession, it does not have a clear and definite method technique, cause, when operation, mistakes and omissions often occur, in some instances it may even be possible to cause serious consequence。

Summary of the invention

Because the drawbacks described above of prior art, the technical problem to be solved is to provide a kind of electrostatic painting process, and this process is simple, eliminates a lot of repeatability operation, improves work efficiency。

For achieving the above object, the invention provides a kind of electrostatic painting process, it is characterised in that comprise the steps, 1) pretreatment: oil removing, rust cleaning, phosphatization, passivation；

2) utilize electrostatic absorption principle, spray last layer powdery paints uniformly on the surface of workpiece；The powder fallen is reclaimed by recovery system, uses after sieving again；

3) hot setting: the workpiece sprayed is pushed curing oven, is heated to predetermined temperature, general 185 degree, and is incubated 15 minutes；Blow-on is taken out cooling and is namely obtained finished product。

The invention has the beneficial effects as follows: present invention process method is simple, eliminate a lot of repeatability operation, improve work efficiency。

Detailed description of the invention

The technical scheme is that a kind of electrostatic painting process, it is characterised in that comprise the steps, 1) pretreatment: oil removing, rust cleaning, phosphatization, passivation；This step can remove the greasy dirt of surface of the work, dust, rusty stain, and surface of the work generate one layer anticorrosive and " phosphate coating " of spray-on coating adhesive force can be increased, workpiece after pretreatment not only surface there is no oil, rust, dirt, and the original glossiness surface of silvery white generates the Lycoperdon polymorphum Vitt phosphating coat being not easy to get rusty a layer uniform and coarse, can the antirust adhesive force that can increase again plastic-blasting layer。

2) utilize electrostatic absorption principle, spray last layer powdery paints uniformly on the surface of workpiece；The powder fallen is reclaimed by recovery system, uses after sieving again；Being sprayed to by powdery paints on the surface of workpiece equably, special workpiece (comprises the position easily producing electrostatic screen) and high performance static plastic spraying machine should be adopted to complete spraying。

3) hot setting: the workpiece sprayed is pushed curing oven, is heated to predetermined temperature, general 185 degree, and is incubated 15 minutes；Blow-on is taken out cooling and is namely obtained finished product。The powdery paints of surface of the work is heated to the temperature of regulation and is incubated the corresponding time, so as to melt, levelling, solidification, thus obtaining the surface of the work effect that we want

Present invention process method is simple, eliminates a lot of repeatability operation, improves work efficiency。

The preferred embodiment of the present invention described in detail above。Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work。Therefore, all technical staff in the art, all should in the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment。

Claims (1)

1. an electrostatic painting process, it is characterised in that comprise the steps, 1) pretreatment: oil removing, rust cleaning, phosphatization, passivation；

2) utilize electrostatic absorption principle, spray last layer powdery paints uniformly on the surface of workpiece；The powder fallen is reclaimed by recovery system, uses after sieving again；

3) hot setting: the workpiece sprayed is pushed curing oven, is heated to predetermined temperature, general 185 degree, and is incubated 15 minutes；Blow-on is taken out cooling and is namely obtained finished product。