CN102357454A - Spraying process for fluorocarbon surface layer paint - Google Patents

Abstract

The invention relates to spraying a process for fluorocarbon surface layer paint, which comprises the following steps of: (1) cleaning and grinding; (2) primer spraying; (3) finish spraying; and (4) fluorocarbon surface layer paint spraying. The aircraft skin processed by the process has strong stain resistance, and the easy cleaning property is obviously improved.

Description

The spraying coating process of fluorine carbon investment precoat

Technical field

The present invention relates to a kind of spraying coating process of fluorine carbon investment precoat, be used for the treatment process of aircraft skin outer surface.

Background technology

Aircraft skin coating is to guarantee the normal critical function material that uses of aircraft; Except that should satisfying specific physicochemical property; Still needing possesses the easy spatter property of anti-preferably contamination, with the clean and tidy and ease for maintenance of assurance aircraft surfaces, but along with covering coats with lacquer the gloss index from light being arranged to unglazed transformation; Cause covering lacquer surface microroughness to increase, use the anti-soil contamination performance of covering lacquer to reduce greatly thus.

Summary of the invention

The technical problem that the present invention will solve provides a kind of spraying coating process of fluorine carbon investment precoat, and the aircraft skin anti-soil contamination performance after this technology is handled is strong, and spatter property obviously improves easily.

For overcoming the above problems, concrete technical scheme of the present invention is following: a kind of spraying coating process of fluorine carbon investment precoat may further comprise the steps:

1) cleaning and polishing:

1.1) in the container of cleaning, using ratio of weight and number to be: the warm water that metal cleaner is 1 part, 70 ~ 80 ℃ mixes for 20 parts, is mixed with the aqueous solution, and the back that stirs is subsequent use;

1.2) be stained with the metal cleaner aqueous solution that has configured with clean brown shirting; Indicate scrub with to be processed; Be stained with the running water of cleaning with clean brown shirting then, clean more than twice, final band processing reaches the continuous 30s of moisture film with the surface;

1.3) get wet to be processed skin-surface uniform grinding one time with the 320# silicon carbide paper, with clean cloth with the ground surface wiped clean;

2) spraying priming paint:

2.1) spray one deck zinc yellow acroleic acid polyurethane priming paint equably on the test specimen surface that cleans up;

2.2) drying: drying is 12 hours under 40 ~ 50 ℃ temperature;

2.3) thickness measure: the priming paint build is 20 ~ 25mm;

3) spray paint:

3.1) with the above sand paper of 400# with priming paint surface finish one time, use the brown shirting wiped clean;

3.2) spray two layers of grey fluoride polyurethane mat enamel paint equably on the priming paint surface;

3.3) drying: drying is 12 hours under 40 ~ 50 ℃ temperature;

3.4) thickness measure: the finish paint build is 45 ~ 55mm;

4) spraying fluorine carbon investment precoat:

4.1) polish with 400# moisture film sand paper, use the brown shirting wiped clean then;

4.2) the anti-self-cleaning coating that stains of preparation: after opening the fluorocarbon coating bucket; Stirred 15 minutes, and be by ratio of weight and the number of copies then: 10 parts of base-materials, curing agent carry out mixing preparation for 30 parts, the allotment on-the-spot slaking in back 20 minutes; Add fluorine carbon lacquer special diluting agent after the slaking and dilute, being diluted to viscosity is 15s;

4.3) pending again surface uniformly sprays two-layer anti-contamination self-cleaning coating, the temperature of job site is 28 ℃, and relative humidity is 52%, and every interlayer was at a distance from 30 minutes;

4.4) spraying back places after 35 minutes and be in the surface drying state;

4.5) under 40～50 ℃ condition, carried out drying 10 hours.

The spraying coating process of this fluorine carbon investment precoat adopts said method, meets each item technical indicator, be difficult for simultaneously contaminated, and cleaning easily.

The specific embodiment

A kind of spraying coating process of fluorine carbon investment precoat is characterized in that may further comprise the steps:

1) cleaning and polishing:

1.1) in the container of cleaning, using ratio of weight and number to be: the warm water that metal cleaner is 1 part, 70 ~ 80 ℃ mixes for 20 parts, is mixed with the aqueous solution, and the back that stirs is subsequent use, and this metal cleaner can be 761 metal cleaners;

1.2) be stained with the metal cleaner aqueous solution that has configured with clean brown shirting; Indicate scrub with to be processed; Be stained with the running water of cleaning with clean brown shirting then, clean more than twice, final band processing reaches the continuous 30s of moisture film with the surface;

1.3) get wet to be processed skin-surface uniform grinding one time with the 320# silicon carbide paper, with clean cloth with the ground surface wiped clean;

2) spraying priming paint:

2.1) spray one deck zinc yellow acroleic acid polyurethane priming paint equably on the test specimen surface that cleans up; This zinc yellow acroleic acid polyurethane is that the model of the priming paint of Tianjin Dengta Coating Industry Development Co., Ltd's production is TB06-9; The priming paint of handling part should hide evenly, does not allow defectives such as current mark, coarse and holiday;

2.2) drying: drying is 12 hours under 40 ~ 50 ℃ temperature;

2.3) thickness measure: the priming paint build is 20 ~ 25mm;

3) spray paint:

3.1) with the above sand paper of 400# with priming paint surface finish one time, use the brown shirting wiped clean;

3.2) spraying two layers of grey fluoride polyurethane mat enamel paint equably on the priming paint surface, the model of this enamel paint is TS96-71, the enamel paint of handling part should hide evenly, does not allow defectives such as current mark, coarse and holiday;

3.3) drying: drying is 12 hours under 40 ~ 50 ℃ temperature;

3.4) thickness measure: the finish paint build is 45 ~ 55mm;

4) spraying fluorine carbon investment precoat:

4.1) polish with 400# moisture film sand paper, use the brown shirting wiped clean then;

4.2) the anti-self-cleaning coating that stains of preparation: after opening the fluorocarbon coating bucket, stirred 15 minutes, be by ratio of weight and the number of copies then: 10 parts of base-materials, curing agent carry out mixing preparation for 30 parts; The allotment on-the-spot slaking in back 20 minutes; Add fluorine carbon lacquer special diluting agent after the slaking and dilute, being diluted to viscosity is 15s, and the measurement of this viscosity meets the test standard of GB/T1723; Wherein the model of fluorocarbon coating is WH-1038, and the model of fluorine carbon lacquer special diluting agent is GLX-23A;

4.3) pending again surface uniformly sprays two-layer anti-contamination self-cleaning coating, the temperature of job site is 28 ℃, and relative humidity is 52%, and every interlayer was at a distance from 30 minutes;

4.4) spraying back places after 35 minutes and be in the surface drying state;

4.5) under 40～50 ℃ condition, carried out drying 10 hours.

Claims (1)

1. the spraying coating process of a fluorine carbon investment precoat is characterized in that may further comprise the steps:

1) cleaning and polishing:

1.1) in the container of cleaning, using ratio of weight and number to be: the warm water that metal cleaner is 1 part, 70 ~ 80 ℃ mixes for 20 parts, is mixed with the aqueous solution, and the back that stirs is subsequent use;

1.2) be stained with the metal cleaner aqueous solution that has configured with clean brown shirting, indicate scrub with to be processed, be stained with the running water of cleaning with clean brown shirting then, to clean more than twice, final band processing reaches the continuous 30s of moisture film with the surface;

1.3) get wet to be processed skin-surface uniform grinding one time with the 320# silicon carbide paper, with clean cloth with the ground surface wiped clean;

2) spraying priming paint:

2.1) spray one deck zinc yellow acroleic acid polyurethane priming paint equably on the test specimen surface that cleans up;

2.2) drying: drying is 12 hours under 40 ~ 50 ℃ temperature;

2.3) thickness measure: the priming paint build is 20 ~ 25mm;

3) spray paint:

3.1) with the above sand paper of 400# with priming paint surface finish one time, use the brown shirting wiped clean;

3.2) spray two layers of grey fluoride polyurethane mat enamel paint equably on the priming paint surface;

3.3) drying: drying is 12 hours under 40 ~ 50 ℃ temperature;

3.4) thickness measure: the finish paint build is 45 ~ 55mm;

4) spraying fluorine carbon investment precoat:

4.1) polish with 400# moisture film sand paper, use the brown shirting wiped clean then;

4.2) the anti-self-cleaning coating that stains of preparation: after opening the fluorocarbon coating bucket; Stirred 15 minutes, and be by ratio of weight and the number of copies then: 10 parts of base-materials, curing agent carry out mixing preparation for 30 parts, the allotment on-the-spot slaking in back 20 minutes; Add fluorine carbon lacquer special diluting agent after the slaking and dilute, being diluted to viscosity is 15s;

4.3) pending again surface uniformly sprays two-layer anti-contamination self-cleaning coating, the temperature of job site is 28 ℃, and relative humidity is 52%, and every interlayer was at a distance from 30 minutes;

4.4) spraying back places after 35 minutes and be in the surface drying state;

4.5) under 40～50 ℃ condition, carried out drying 10 hours.