CN104353599B - The method of a kind of glass ball process steel aviation part rust preventive coating - Google Patents
The method of a kind of glass ball process steel aviation part rust preventive coating Download PDFInfo
- Publication number
- CN104353599B CN104353599B CN201410629502.0A CN201410629502A CN104353599B CN 104353599 B CN104353599 B CN 104353599B CN 201410629502 A CN201410629502 A CN 201410629502A CN 104353599 B CN104353599 B CN 104353599B
- Authority
- CN
- China
- Prior art keywords
- glass ball
- rust preventive
- paint layer
- preventive coating
- paint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
A method for glass ball process steel aviation part rust preventive coating, belongs to paint layer material technical field of surface.------spray paint--baking-curing--intermediate survey and do over again--process of glass ball--final Characteristics Detection processing step to blow sand in non-painting surface protection to comprise surface preparation. By rust preventive coating table is carried out glass shot peening by suitable parameter, paint layer material electric conductivity is made to reach < 15 ohm every 125 millimeters, meet completely aviation with in temperature aluminium rust preventive coating to the performance requriements of specific conductivity aspect, solidification value is dropped to 300 from 560 degree simultaneously, control part deformation. Good through the paint layer bonding force of glass ball process, especially at the part edge easily producing to tilt, the process of spray glass ball can remove the not good unnecessary paint layer material of surface bonding power, avoids the risk producing fifth wheel in engine operation state.
Description
Technical field
The present invention relates to the method for a kind of glass ball process steel aviation part rust preventive coating, belong to paint layer material technical field of surface.
Background technology
Along with the develop rapidly of aircraft industry, the output of engine is improving constantly, aeronautical manufacture processing technology constantly promotes, steel components mainly adopts the mode of surface spraying rust-inhibiting paint to improve corrosion-resistant and thermal shock resistance properties itself, thus extend its work-ing life under a particular job situation of aircraft engine, the application space of expansion steel components. And at present aircraft industry uses more is temperature aluminium rust preventive coating in a kind of aviation. This type of rust preventive coating to be reached the corrosion prevention requirement of piece surface conduction, need to carry out baking-curing through the temperature of more than 560 degrees Celsius, easily cause part deformation: and paint layer surface irregularity after solidification, lackluster, regional area bonding force is not good, and edge easily produces and comes off, and there is certain limitation.
Summary of the invention
The steel components used to solve in above-mentioned aircraft engine produces the bigger problem of distortion through 560 degree of high bakes in antirust treatment process, and the present invention provides the method for a kind of glass ball process steel aviation part rust preventive coating.
The technical solution used in the present invention is as follows:
The inventive method comprises surface preparation--and non-painting surface protection--is blown sand--and is sprayed paint, it is characterised in that: also comprise the baking-curing after spraying paint--intermediate survey and do over again--process of glass ball--final Characteristics Detection processing step, described in
Baking-curing technique: 1. paint layer insulation: inserted in 100 �� 10 DEG C of stoves by the part of band paint layer, and be incubated 30��40min at this temperature; 2. drying and process: when part is dry in stove, when higher than 150 DEG C, removing paper self-adhesive tape before drying, the burr at cleaning paint layer edge, paint layer surfacing terminates; 3. curing process: loaded by part in the stove that temperature is no more than 350 DEG C, is heated to 350 �� 8 DEG C, and is incubated at least lh at this temperature;
Described intermediate survey and technique of doing over again: use eddy current thickness meter to carry out the position checking the part being painted not apply, during inspection, under standard light, check when being 500mm with normal visual range; Mean value method is checked, and coat-thickness is at 40 ��m-75 ��m, and place, local is reduced to 25 ��m or increase thick in 100 ��m;
Glass ball treatment process: when spraying glass ball, select nozzle diameter to be 10-15mm; Nozzle and workpiece distance are 120-180mm; Blast pressure is 30-40Kpa; The area of application is carried out shot-peening, and coating color becomes bright silvery white.
Further, the paint layer insulation operation of described baking-curing technique toasts 66 �� 6min replacement with 190 �� 8 DEG C.
Further, in described glass ball treatment process steps, for glass ball injection less than part position, use thin polishing pad to generate the coating of conduction, after shot-peening, blow clean Watch glass ball with clean pressurized air, air pressure is 0.2-0.6Mpa, distance is 100-300mm, and the working temperature of spray glass ball workplace is 15��30 DEG C, and relative humidity is 35��60%.
Further, final Characteristics Detection technique is also comprised: after polishing, check polishing area after glass ball treatment process, should not be sprayed onto non-spraying region, by volt ohm-milliammeter three different local resistivity measuring coatings, it is no more than l2 ��/l25mm��l8 ��/l25mm, eddy current thickness meter uses mean value method, and coat-thickness is generally at 40 ��m-75 ��m, and place, local is reduced to 25 ��m or increase thick in 100 ��m.
The useful effect of the present invention:
1. adopt the technical scheme of the present invention, temperature aluminium rust preventive coating material and baking-curing temperature in this type of can be made to drop to 300 degree from 560 degree, meet the electroconductibility requirement of sacrificial rust preventive coating material equally, and reduce greatly the part deformation that hot setting process causes.
2. pair part contains thermal spraying material etc. to the more sensitive operation of temperature, it may be considered that carries out before being arranged in painting process, improves the manufacturability of part, reduces difficulty of processing.
3. paint layer bonding force through the process of glass ball is good, and especially at the part edge easily producing to tilt, the process of spray glass ball can remove the not good unnecessary paint layer material of surface bonding power, avoids the risk producing fifth wheel in engine operation state.
4. this kind of processing mode can also reduce the roughness painting layer surface, produces the gloss of similar metal, significantly improves the visual appearance of part.
5. the middle temperature aluminium rust preventive coating material that aircraft industry uses can reach cured strength through 300 degree of bakings, the aspect performance requriementss such as bonding force, but electroconductibility requirement can not be reached, Instrumental results insulate substantially, by rust preventive coating table is carried out glass shot peening by suitable parameter, paint layer material electric conductivity is made to reach < 15 ohm every 125 millimeters, meet completely aviation with in temperature aluminium rust preventive coating to the performance requriements of specific conductivity aspect, solidification value is dropped to 300 from 560 degree simultaneously, control part deformation, the thermospray operation of portion parts carries out before can also be made to change to painting process, significantly improve steel components use properties and processing technology.
Accompanying drawing explanation
Fig. 1 is that the present invention is for typical part spray treatment schematic diagram.
Fig. 2 is that the present invention is for complex profile part spray treatment schematic diagram.
In figure: 1. workpiece, 2. tangent line direction, 3. glass ball a fluid stream, 4. spray gun, 5. covers frock, 6. needs glass ball treat surface.
Embodiment
Describe the present invention below in conjunction with drawings and Examples:
Embodiment: as shown in Figure 1, the present invention is used for typical part spray treatment, and processing step is:
Surface prepares--non-painting surface protection--blow sand--spray paint--baking-curing--intermediate survey and--spray glass ball process--final Characteristics Detection of doing over again, specific as follows:
(1) surface preparatory technology: adopt alkalis (741) oil removing, immerse and check water film continuity after 15-20 minute, blows dry with the anhydrous pressurized air without oil; Local light contamination, permission acetone or alcohol wipe oil removing, remove piece surface pollutent; With 120��220 order alumina grits put into specific equipment carry out dry blow sand process. When blowing sand, air pressure is 0.2��0.55MPa, and nozzle is 100 200mm to the distance of part;
(2) non-painting surface protection technique: protect by the region without the need to japanning of design chart regulation machinery shelves plate, fixture, stopper, special teflon adhesive tape, paper self-adhesive tape and other model adhesive tape, visual inspection quality of protection, the surface sprayed has not allowed hovel, guarantee that Protect edge information compresses and smoothly, then carries out blowing sand operation;
(3) blow sand technique: blast room before blowing sand, must be cleared up, make blast room clean; 120��220 order aluminum oxide sand are put into special metal bucket carry out dry blow sand process, pressurized air has to pass through water-and-oil separator and filters, when blowing sand, air pressure is 0.2 0.55MPa, nozzle is 100-200 ��m to the distance of part: if not carrying out painting process immediately, part should use suitable material to carry out covering protection, to prevent what prepared is surperficial contaminated; Part should use clean dry air blow or carry out grooming with thousand clean hairbrush, to guarantee to remove the sand grains medium of residual; Blow the part after sand to spray in 15h, preferably spray immediately; If more than 15h or blow sand rear surface by unexpected ground contamination, then again by 3��6 steps; After blowing sand, whether sand surface is blown in inspection cleaning, dry, and in evenly consistent grey, on flowing water card, record blows sand end time and japanning time opening;
(4) temperature aluminium rust preventive coating technique in aviation is sprayed: paint vehicle mixing need to be no less than 24h in rotating equipment (ball mill), filters paint vehicle by 150 mesh sieve before spraying paint; The working temperature of painting workshop is 15��30 DEG C, and relative humidity is 35��60%, to prevent there are coating " returning wet " and " quality problems such as empty cigarette; Temperature between spraying vehicle and humidity record when spraying operation starts, afterwards should at interval of 4 hours records once; Use SATA or similar spray gun, spray distance: 100��200mm; Spray angle is perpendicular to workpiece surface as far as possible, spray pressure: 0.2��0.3MPa; Applying one layer, dry air reaches matt gray surface layer; The coating second layer, in cleaning warm environment, dry air is to ash colour outer layer; Final material thickness 20����m 100 ��m (general coating approximately reaching 40pm of this example, local thinnest part is 20 ��m, and thickness is 100 ��m); If there is surface imperfection before curing in paint layer, application clean water decoating; For surface cannot be protected, allow first to spray doped envelope, then can not afford hair cotton dip in water remove non-be coated with surface major part paint layer;
(5) baking-curing technique: baking oven at room temperature put into by part, and evenly temperature is risen to oven dry or drawing solidification value. In order to repair painted areas burrs on edges. 1. layer insulation is painted: can be loaded in 100 �� 10 DEG C of stoves by the part of band paint layer, and be incubated 30��40min at this temperature. Or, toast 66 �� 6min with 190 �� 8 DEG C and replace; 2. drying and process: when part is dry in stove, Machine guarding can stay, but when higher than 150 DEG C, should remove paper self-adhesive tape before oven dry; With 240��No. 400 beat abrasive block or special little cutter cleaning paint floor edge burr, with ensure coating clean; 3. after paint layer surfacing terminates, carry out final curing process immediately: loaded by part in the stove that temperature is no more than 350 DEG C, it is heated to 8 DEG C, 350 soil, and is incubated at least lh at this temperature; If there being particular requirement, then perform by technique chart regulation, remove all mechanical clamps;
(6) intermediate survey and technique of doing over again: operator's care should be used to does not pollute coating, should wear the gloves touch part totally not fluffed, it may also be useful to during eddy current thickness meter, it should use alloy representative and metallic substance to carry out the calibration of thickness tester; The part being painted, the position not applied may be used for the calibration of thickness tester. During measurement, should reduce such as the impact at edge and the extra curvature radius relative to plane during calibration as far as possible. The precision of thickness measurement device is using and should examined by school before recording. Under standard light, with normal visual (non-amplified mirror), check when the about 500mm of visual range. Surveying RPS666/l coating 5 point on the position that part is different with eddy current thickness meter, average, coat-thickness is generally at 40 ��m-75 ��m, and it is thick in 100 ��m with increasing that place, local allows to be reduced to 25 ��m;
(7) glass ball treatment process is sprayed: glass ball meets AMS2431/6 sodium calcium type; Maximum granularity-AGB-25 (AMS2431/6); The about 12mm of nozzle diameter; Nozzle and workpiece are apart from about 150mm; Blast pressure 35Kpa; With the shortest time, the area of application being carried out shot-peening, coating color becomes bright silvery white.
In this step, irregular for geometrical shape, glass ball sprays not then, it may also be useful to thin polishing is sincere generates the coating stining conduction; After shot-peening, blow clean Watch glass ball (air pressure 0.2-0.6Mpa, distance 100-300mm, it is noted that the cleaning between hole, groove with clean pressurized air; The working temperature of spray glass ball workplace is 15��30 DEG C, and relative humidity is 35��60%, otherwise may affect surface quality of workpieces;
(8) final Characteristics Detection technique: check polishing area after polishing, it should not be sprayed onto non-spraying region. With volt ohm-milliammeter three different local resistivity measuring coatings, it is no more than l5 ��/l25mm. Eddy current thickness meter surveys RPS666/1 coating 5 point on the position that part is different, averages, and coat-thickness is generally at 40 ��m-75 ��m, and it is thick in 100 ��m with increasing that place, local allows to be reduced to 25 ��m.
In internal surface protection difficulty, and the region that coating cannot normally spray, if coating does not have crack to expose matrix after baking, allow the change of coat-thickness; When spraying axis hole with granulated glass sphere, specific conductivity inspection allows limited, is suitable for when the ratio of general diameter and the degree of depth is greater than 2:1, and such as: for the hole of 20mm diameter, conductivity only checks 10mm deep location.
Simple for structure, it is desired to the more smooth steel components in surface of spray glass ball process can adopt the mode of disposable direct shot-peening. Spray gun is adjusted to the position vertical with piece surface, and the disposable piece surface spray glass ball that completes processes. As shown in Figure 1, typical part spray glass ball process schematic diagram.
For the more complicated pending region of the structure not part in same plane, to be needed when spraying glass treatment to adjust the piece surface that angle of gun is perpendicular to a certain local as far as possible, then adjust angle of gun and other surface of position parts processed successively. Such as require the part carrying out spraying the process of glass ball to castor tooth region, it is necessary to adjust spray gun position and angle respectively, process the upper and lower surface of castor tooth successively, to obtain perfect result. As shown in Figure 2, complex profile piece surface spray glass ball example.
Claims (4)
1. one kind processes the method for steel aviation part rust preventive coating with glass ball;--non-painting surface protection--is blown sand--and is sprayed paint to comprise surface preparation; it is characterized in that: also comprise the baking-curing after spraying paint--intermediate survey and do over again--process of glass ball--final Characteristics Detection processing step, described in
Baking-curing technique: 1. paint layer insulation: inserted in 100 �� 10 DEG C of stoves by the part of band paint layer, and be incubated 30��40min at this temperature; 2. drying and process: when part is dry in stove, when higher than 150 DEG C, removing paper self-adhesive tape before drying, the burr at cleaning paint layer edge, paint layer surfacing terminates; 3. curing process: loaded by part in the stove that temperature is no more than 350 DEG C, is heated to 350 �� 8 DEG C, and is incubated at least lh at this temperature;
Described intermediate survey and technique of doing over again: use eddy current thickness meter to carry out the position checking the part being painted not apply, during inspection, under standard light, check when being 500mm with normal visual range; Mean value method is checked, and coat-thickness is at 40 ��m-75 ��m, and place, local is reduced to 25 ��m or increase thick in 100 ��m;
Glass ball treatment process: when spraying glass ball, select nozzle diameter to be 10-15mm; Nozzle and workpiece distance are 120-180mm; Blast pressure is 30-40Kpa; The area of application is carried out shot-peening, and coating color becomes bright silvery white.
2. the method for steel aviation part rust preventive coating is processed as claimed in claim 1 with glass ball, it is characterised in that: the paint layer insulation operation of described baking-curing technique is toasted 66 �� 6min with 190 �� 8 DEG C and is replaced.
3. the method for steel aviation part rust preventive coating is processed as claimed in claim 1 with glass ball, it is characterized in that: in described glass ball treatment process steps, for glass ball injection less than part position, use thin polishing pad to generate the coating of conduction, after shot-peening, blow clean Watch glass ball with clean pressurized air, air pressure is 0.2-0.6Mpa, distance is 100-300mm, and the working temperature of spray glass ball workplace is 15��30 DEG C, and relative humidity is 35��60%.
4. the method for steel aviation part rust preventive coating is processed as claimed in claim 1 with glass ball, it is characterized in that: after glass ball treatment process, also comprise final Characteristics Detection technique: after polishing, check polishing area, should not be sprayed onto non-spraying region, by volt ohm-milliammeter three different local resistivity measuring coatings, it is no more than l2 ��/l25mm��l8 ��/l25mm, eddy current thickness meter uses mean value method, coat-thickness is generally at 40 ��m-75 ��m, and place, local is reduced to 25 ��m or increase thick in 100 ��m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629502.0A CN104353599B (en) | 2014-11-11 | 2014-11-11 | The method of a kind of glass ball process steel aviation part rust preventive coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629502.0A CN104353599B (en) | 2014-11-11 | 2014-11-11 | The method of a kind of glass ball process steel aviation part rust preventive coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104353599A CN104353599A (en) | 2015-02-18 |
| CN104353599B true CN104353599B (en) | 2016-06-01 |
Family
ID=52520958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410629502.0A Active CN104353599B (en) | 2014-11-11 | 2014-11-11 | The method of a kind of glass ball process steel aviation part rust preventive coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104353599B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020883A (en) * | 2015-08-14 | 2015-11-04 | 福建省江南电器制造有限公司 | Electric water heater allowing media to be automatically added |
| CN105451449A (en) * | 2015-12-11 | 2016-03-30 | 苏州米达思精密电子有限公司 | Fabrication method of reinforce panel with single paint surface |
| CN105392277A (en) * | 2015-12-11 | 2016-03-09 | 苏州米达思精密电子有限公司 | Reinforcing panel steel belt with single painted surface |
| CN105772377A (en) * | 2016-04-14 | 2016-07-20 | 太仓吉达喷涂有限公司 | Electrostatic spraying technology for car crusts |
| CN107790360A (en) * | 2017-10-20 | 2018-03-13 | 成都布雷德科技有限公司 | The preparation method of composite coating that marine anticorrosion uses |
| CN110359003A (en) * | 2019-06-26 | 2019-10-22 | 北京广利核***工程有限公司 | Nuclear leve cabinet dish platform frame surface treatment method and nuclear leve cabinet dish platform |
| CN112551870A (en) * | 2020-12-08 | 2021-03-26 | 贵州华烽电器有限公司 | Sintering method of glass body in stainless steel shell |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698189B (en) * | 2009-10-16 | 2014-10-15 | 青特集团有限公司 | Zinc-galvanizing and paint-spraying coating process for submerged boat carrier |
| CN101972726B (en) * | 2010-10-21 | 2012-01-11 | 中煤邯郸煤矿机械有限责任公司 | Hydraulic cylinder surface shot blasting, paint spraying and drying system and shot blasting, paint spraying and drying process thereof |
| CN102994923B (en) * | 2012-11-16 | 2014-08-13 | 中国航空工业集团公司北京航空材料研究院 | High-energy composite repair method for shallow cracks of titanium alloy |
| CN103949389A (en) * | 2014-04-21 | 2014-07-30 | 哈尔滨汽轮机厂有限责任公司 | Application of domestic paint in protective process of medium-temperature parts of gas turbine |
-
2014
- 2014-11-11 CN CN201410629502.0A patent/CN104353599B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104353599A (en) | 2015-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104353599B (en) | The method of a kind of glass ball process steel aviation part rust preventive coating | |
| KR102418445B1 (en) | How to form stainless steel parts | |
| CN106181218A (en) | A kind of aluminium alloy wheel hub of vehicle remanufactures technique | |
| CN109112459A (en) | A kind of aircraft universal shaft remanufactures renovation technique | |
| CN110408879A (en) | A kind of undecomposable sealing ring piston rod of aircraft band remanufactures renovation technique | |
| CN112676130B (en) | Bridge steel structure coating method | |
| CN114318323A (en) | Method for repairing local damage of aircraft skin surface in situ through cold spraying | |
| CN101787510A (en) | Preparation technology of turbine though-flow part coating against solid particle erosion | |
| CN112159947A (en) | Electric arc spraying method | |
| CN104911587A (en) | Shell body of electronic product and processing method thereof | |
| US20060204780A1 (en) | Development of low gloss coated surfaces on vehicle wheels | |
| CN106733557A (en) | The surface treatment method of rail traffic vehicles | |
| EP0492323B1 (en) | Method for the surface-treatment of parts | |
| CN103586185A (en) | Wharf vehicle coating process | |
| CN107805809A (en) | A kind of automobile die surface coating renovation technique | |
| KR20200114934A (en) | Preventive maintenance construction method for steel bridge | |
| CN112246580A (en) | Coating process of wear-resistant and corrosion-resistant paint | |
| CN105586561A (en) | Steel structure anti-corrosion process | |
| CN103586187A (en) | Coating process for exported oil truck | |
| CN103272752A (en) | Field patching method after damage of zinc coating of in-service power transmission tower | |
| CN107620026A (en) | A kind of HVAF technique of pure alumina coating | |
| CN103153017A (en) | Manufacturing method for magnesium aluminum alloy housing | |
| CN111975297B (en) | Preparation and rolling post-treatment strengthening process for high-energy micro-arc deposition layer on copper alloy surface | |
| CN111195863B (en) | Method for compacting anti-corrosive paint for turbine engine components | |
| CN103898435A (en) | Method for repairing surface cracks of titanium alloy plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
|
| CP01 | Change in the name or title of a patent holder |