CN105689215A - Spraying process for complex surface - Google Patents

Abstract

The invention discloses a spraying process for a complex surface. The spraying process for the complex surface is characterized in that the spraying process comprises the following requirements that 1, coatings are uniformly stirred with a rod; 2, the air pressure is controlled to be 0.4-0.7 MPa; 3, the distance between a nozzle and an object surface is 250-280 mm; 4, a spray gun can move up and down as well as left and right and uniformly acts at the speed of 8-12 m/min, and the nozzle needs to be straight and perpendicular to the object surface to spray; 5, the next spraying needs to press 1/5-1/6 of the last spraying, and when quick-drying paint is sprayed, spraying needs to be completed in sequence at a time; and 6, the spraying sequence is that the difficult position is sprayed at first, and then the easy position is sprayed; the interior is sprayed at first, and then the exterior is sprayed; the high position is sprayed at first, and then the low position is sprayed; the small area is sprayed at first, and then the large area is sprayed. According to the spraying process for the complex surface, the defect of the spraying process can be overcome, and the quality of the sprayed surface and the product quality are improved.

Description

A kind of spraying coating process of complex surface

Technical field

The invention belongs to spraying coating process field, specifically the spraying coating process of a kind of complex surface。

Background technology

Spraying is complex surface is one of the important method of secondary operations, in spraying, the problems such as adhesion effect bad, loss of gloss, pit occur often, solubility parameter differs greatly with the solubility parameter of the coating such as resin, solvent in coating, the internal stress produced when molding is easily generated paint film crackle or reduces the defects such as coating gloss, surface is easily generated electrostatic and absorption dust, affect painting effect, existing do not obtain good specification, thus it is difficult to ensure that product quality, it is necessary to it is further improved。

Summary of the invention

In view of the deficiency that prior art exists, it is an object of the invention to provide the spraying coating process of a kind of complex surface, spraying coating process defect can be reduced, improve sprayed surface quality, improve product quality。

The technical scheme realizing the object of the invention is as follows:

The spraying coating process of a kind of complex surface, it is characterised in that its spraying coating process includes claimed below:

(1) coating is stirred well even with rod；

(2) air-pressure controlling is at 0.4-0.7 MPa；

(3) the interval 250-280 millimeter of nozzle and object plane；Slow curing paint spraying interval can a little further, can be a little further when viscosity is rare；When air pressure is big, interval can a little further, and pressure hour can be more closely；Described closely a bit a little further refers to the adjustment of scope between 10 millimeters-50 millimeters；

(4) spray gun can be made up and down, move left and right, and with the speed uniform motion of 8-12 m/min, nozzle is wanted straight and sprayed in object plane, when being sprayed onto object plane two ends, the spraying of more than twice；

(5) to descend during spraying to push down 1/5-1/6 together together, when spraying quick-drying paint, need once to have sprayed in order；

(6) order sprayed is: difficult at first and quite easy afterwards, from inside outwards, and lower after first eminence, first large area after little area。

The spraying coating process of a kind of complex surface of the present invention, can reduce spraying coating process defect, improves sprayed surface quality, improves product quality。

Detailed description of the invention

Below in conjunction with embodiment, the invention will be further described, and its operating procedure is as follows:

A kind of spraying coating process of complex surface, its spraying coating process includes claimed below:

(1) coating is stirred well even with rod；

(2) air-pressure controlling is at 0.4-0.7 MPa；

(3) the interval 250-280 millimeter of nozzle and object plane；Slow curing paint spraying interval can a little further, can be a little further when viscosity is rare；When air pressure is big, interval can a little further, and pressure hour can be more closely；Described closely a bit a little further refers to the adjustment of scope between 10 millimeters-50 millimeters；

(4) spray gun can be made up and down, move left and right, and with the speed uniform motion of 8-12 m/min, nozzle is wanted straight and sprayed in object plane, when being sprayed onto object plane two ends, the spraying of more than twice；

(5) to descend during spraying to push down 1/5-1/6 together together, when spraying quick-drying paint, need once to have sprayed in order；

(6) order sprayed is: difficult at first and quite easy afterwards, from inside outwards, and lower after first eminence, first large area after little area。

The spraying coating process of a kind of complex surface of the present invention, can reduce spraying coating process defect, improves sprayed surface quality, improves product quality。

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 at the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by logic minute analysis, reasoning or the available technical scheme of limited experiment。

Claims (1)

1. the spraying coating process of a complex surface, it is characterised in that its spraying coating process includes claimed below:

(1) coating is stirred well even with rod；

(2) air-pressure controlling is at 0.4-0.7 MPa；

(3) the interval 250-280 millimeter of nozzle and object plane；Slow curing paint spraying interval can a little further, can be a little further when viscosity is rare；When air pressure is big, interval can a little further, and pressure hour can be more closely；Described closely a bit a little further refers to the adjustment of scope between 10 millimeters-50 millimeters；

(4) spray gun can be made up and down, move left and right, and with the speed uniform motion of 8-12 m/min, nozzle is wanted straight and sprayed in object plane, when being sprayed onto object plane two ends, the spraying of more than twice；

(5) to descend during spraying to push down 1/5-1/6 together together, when spraying quick-drying paint, need once to have sprayed in order；

(6) order sprayed is: difficult at first and quite easy afterwards, from inside outwards, and lower after first eminence, first large area after little area。