CN109692796A - A kind of spraying process of rigid arch rib - Google Patents
A kind of spraying process of rigid arch rib Download PDFInfo
- Publication number
- CN109692796A CN109692796A CN201811495237.6A CN201811495237A CN109692796A CN 109692796 A CN109692796 A CN 109692796A CN 201811495237 A CN201811495237 A CN 201811495237A CN 109692796 A CN109692796 A CN 109692796A
- Authority
- CN
- China
- Prior art keywords
- spraying
- steel member
- hours
- arch rib
- sandblasting
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of spraying process of rigid arch rib, lacquer spraying technique including blasting craft and after sandblasting, blasting craft includes: the progress sandblasting operation in sand blasting room, blasting treatment is carried out to the surfaces externally and internally of steel member in strict accordance with the requirement of blasting craft parameter, the Temperature and Humidity of a secondary environment is at least carried out daily and takes measures to adjust ambient temperature and humidity according to the actual situation；The abrasive material of the cleannes and roughness that meet code requirement is selected, and periodically abrasive material is checked；Lacquer spraying technique includes: using aerial spraying, and coating will be stirred evenly thoroughly before pouring into spray painting cylinder, and nozzle and institute's coated plate face distance controlling are between 100-200mm；Steel member after blasting treatment should carry out spray painting coating in 12 hours, spraying interval time of twice priming paint, the overlay painting interval time of priming paint and intermediate coat, intermediate coat and first of finishing coat overlay painting interval should all be between -168 hours 24 hours.The technique can guarantee that the construction quality of erosion resistant coating meets design and code requirement.
Description
Technical field
The present invention relates to a kind of spraying process of rigid arch rib.
Background technique
Outer anticorrosive coating construction is carried out to steel lagging jack in existing technology, not due to sprayed surface cleannes and roughness
Enough, spray pressure is insufficient, and coating thickness is irregular and environmental condition limitation keeps coating quality not high, causes using a period of time
It is corroded under the oxidation of air afterwards, effective antisepsis cannot be played.
Summary of the invention
The present invention provides a kind of spraying process of rigid arch rib, which overcome the prior arts described in background technology not
Foot.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of spraying process of rigid arch rib, it includes blasting craft and lacquer spraying technique after sandblasting, in blasting craft
The steel member surface of rigid arch rib is checked first before, makes mark, and clean the floating dust on steel member surface, attachment,
Greasy dirt, salinity and impurity；
Blasting craft includes:
Sandblasting operation is carried out in sand blasting room, in sandblasting procedures, in strict accordance with the requirement of blasting craft parameter to steel structure
The surfaces externally and internally of part carries out blasting treatment, and at least carries out the Temperature and Humidity of a secondary environment daily and take according to the actual situation
Measure adjusts ambient temperature and humidity；
The abrasive material of the cleannes and roughness that meet code requirement is selected, and periodically abrasive material is checked, be sieved,
Ash disposal, supplement process are to guarantee the normal use of abrasive material；
After sandblasting, desanding, dust removal process are carried out to steel member surface.
Lacquer spraying technique includes:
Steel member surface or Front-coating mirror surface are cleared up before spray painting, remove crude removal, repairs defect；
Using aerial spraying, coating will be stirred evenly thoroughly before pouring into spray painting cylinder, and nozzle and institute's coated plate face distance controlling exist
It is close when the distance between nozzle and applied plate face are sprayed compared with facade when plane is sprayed between 100-200mm；
Steel member after blasting treatment should carry out spray painting coating in 12 hours, and first of priming paint must not apply before not doing solid work
Second priming paint, the spraying interval time of twice priming paint between -168 hours 24 hours, if more than 168 hours, must be by first
Road priming paint with fine sandpaper be polished into it is subtle it is hairy after can go up second priming paint；The overlay painting interval of priming paint and intermediate coat is 24 small
When -168 hours, must not exceed 168 hours；The overlay painting interval of intermediate coat and first of finishing coat is -168 hours 24 hours, must not
More than 168 hours.
Among one embodiment: carrying out aerial spraying using spray gun, the air compressor that spray gun uses need to be equipped with water-oil separating
When device, each sandblasting and air paint, the water in the oil water separator in air compressor need to be excluded clean.
Among one embodiment: carrying out sandblasting and spray painting using PQ1 type spray gun, expect that nozzle and nozzle are all made of 2.8mm diameter
Large size nozzle.
Among one embodiment: when spray painting, carrying out aerial spraying using spray gun, the compression for the air compressor that spray gun uses is empty
The pressure of gas is in 4.5-6kg/cm2。
Among one embodiment: for structure is complicated on steel member or is not easy the position painted, precoated with brush, and
Carry out the spray painting spray coating operations of large area again afterwards.
Among one embodiment: for the commissure before the welding for building-site welding on steel member without paint
Coating；
Welding slag, overlap, burr, weldering are cleared up with grinder buffing welded seam area for the commissure of building-site installation on ground
Splash and dirt are connect, is then primed, intermediate coat, finishing coat.
Among one embodiment: for the commissure of building-site installation on ground, if instead becoming rusty before coating prime lacquer,
Again it derusts, derusting reaches St3 grades using motor wire brush processing, then removes the rust dirt and remaining abrasive material on surface, and then linging
Paint, intermediate coat and finishing coat.
Among one embodiment: steel member generates local damage when entrucking, transporting, unloading, stack, and causes the anti-rust in part
When, it need to derust again, derusting reaches St3 grades using motor wire brush processing, and then primes, intermediate coat and finishing coat.
Among one embodiment: the spray painting uses inorganic zinc-rich antirust non-skid coating.
Among one embodiment: for steel member bolt face after sandblasting is qualified, require to carry out in strict accordance with technological parameter
Spray painting detects wet-film thickness using wet film card at any time in painting process, its coefficient of friction and friction when site operation after spraying
Coefficient should all meet related specifications and want power.
The technical program compared with the background art, it has the following advantages:
1, carrying out sandblasting and spraying application, environment temperature and humidity indoors can effectively control, and can be dust-proof, anti-
Wind, anti-rain and dew are preferably minimized environment influence.
2, start with from environment, raw material, mixture, spraying equipment, spraying method and damaged post-processing approach, and to each
Process quality is controlled, and guarantees that the construction quality of erosion resistant coating meets design and code requirement.
3, the spraying process, anticorrosive quality is high, and service life is long, and coating thickness is uniform, effectively saves manpower and material resources,
The number for reducing maintenance when runing for owner's later period, brings economic benefit.
Specific embodiment
A kind of spraying process of rigid arch rib, it includes blasting craft and lacquer spraying technique after sandblasting, in blasting craft
The steel member surface of rigid arch rib is checked first before, makes mark, and clean the floating dust on steel member surface, attachment,
Greasy dirt, salinity and impurity；
Blasting craft includes:
Sandblasting operation is carried out in sand blasting room, in sandblasting procedures, in strict accordance with the requirement of blasting craft parameter to steel structure
The surfaces externally and internally of part carries out blasting treatment, and at least carries out the Temperature and Humidity of a secondary environment daily and take according to the actual situation
Measure adjusts ambient temperature and humidity (such as dehumidify, heat, cooling measure)；Preferably, steel structure is measured before each sandblasting operation
The surface temperature of part is adjusted to reach the temperature of suitable sandblasting with the temperature in time to steel member surface.
The abrasive material of the cleannes and roughness that meet code requirement is selected, and periodically abrasive material is checked, be sieved,
Ash disposal, supplement process are to guarantee the normal use of abrasive material；If dampness, should stop using, replaces fresh sand or dry to reach and want
It is reused after asking.
After sandblasting, desanding, dust removal process are carried out to steel member surface；It can be removed with high-power sand sucker or human assistance
Sand, dirt；Vacuum cleaning can also be carried out with high-power vacuum cleaner, clean workpiece surface thoroughly.
Sandblasting is carried out using spray gun under normal circumstances, the air compressor connecting with spray gun, detection are opened in sandblasting before starting
The cleannes of the compressed air of air compressor gas outlet, and will test the derusting by sandblasting quality record that result is recorded in steel member
In, so as to subsequent query and reference.
The present embodiment carries out sandblasting using PQ1 type spray gun, and nozzle uses the large size nozzle of 2.8mm diameter.
Lacquer spraying technique includes:
Steel member surface or Front-coating mirror surface are cleared up before spray painting, remove crude removal, repairs defect；
Using aerial spraying, coating will be stirred evenly thoroughly before pouring into spray painting cylinder to prevent zinc powder from precipitating paint can bottom, spray
Mouth and institute's coated plate face distance controlling are between 100-200mm, and the distance between nozzle and applied plate face are sprayed compared with facade when plane is sprayed
When it is close, to prevent fluid stopping extension；Control number spray gun movement speed is answered when spraying, so that the paint sprayed is had a wet paint film, and not
Because super thick generates accumulation and sagging, absolutely not allow dry spray.The spray painting uses inorganic zinc-rich antirust non-skid coating.
Steel member after blasting treatment should carry out spray painting coating in 12 hours, and first of priming paint must not apply before not doing solid work
Second priming paint, the spraying interval time of twice priming paint between -168 hours 24 hours, if more than 168 hours, must be by first
Road priming paint with fine sandpaper be polished into it is subtle it is hairy after can go up second priming paint；The overlay painting interval of priming paint and intermediate coat is 24 small
When -168 hours, must not exceed 168 hours；The overlay painting interval of intermediate coat and first of finishing coat is -168 hours 24 hours, must not
More than 168 hours.
Aerial spraying is carried out using spray gun under normal circumstances, the air compressor that spray gun uses need to be equipped with oil water separator,
When each sandblasting and air paint, the water in the oil water separator in air compressor need to be excluded clean.
The present embodiment is painted using PQ1 type spray gun, and material nozzle uses the large size nozzle of 2.8mm diameter.
Preferably, when spray painting, the pressure of the compressed air for the air compressor that spray gun uses is in 4.5-6kg/cm2。
For structure is complicated on steel member or is not easy the position painted, is precoated with brush, then carry out big face again
Long-pending spray painting spray coating operations.
For the commissure before the welding for building-site welding on steel member without oil paint coating, in order to avoid influence
Welding quality.
Welding slag, overlap, burr, weldering are cleared up with grinder buffing welded seam area for the commissure of building-site installation on ground
Splash and dirt are connect, is then primed, intermediate coat, finishing coat.
It for the commissure of building-site installation on ground, if instead becoming rusty before coating prime lacquer, to derust, derust again
It is handled using motor wire brush and reaches St3 grade, then remove the rust dirt and remnants abrasive material on surface, and then prime, intermediate coat and face
Paint.
Steel member generates local damage when entrucking, transporting, unloading, stack, and when causing part is anti-to become rusty, need to derust again,
Derusting reaches St3 grades using motor wire brush processing, and then primes, intermediate coat and finishing coat.
For steel member bolt face after sandblasting is qualified, require to paint in strict accordance with technological parameter, painting process
In detect wet-film thickness using wet film card at any time, its coefficient of friction and coefficient of friction when site operation should all meet phase after spraying
It closes specification and wants power.
If environment temperature is more than 38 DEG C or excessively high steel member surface temperature, it is easy to happen dry spray phenomenon, it at this time should be by steel
Component moves to shady place and carries out painting operation.
If spray painting work and sandblasting work carry out simultaneously, the steel member of paint spraying should avoid painting far from sand blasting room
The steel member surface paint of spraying is contaminated by dust.
Rain drop erosion should be avoided in rigid ready-made steel member especially, and spy's patch is finishing coat, and should in time be transferred to steel member can
With the place taken shelter from rain.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (10)
1. a kind of spraying process of rigid arch rib, it is characterised in that: lacquer spraying technique including blasting craft and after sandblasting is spraying
The steel member surface of rigid arch rib is checked first, makes mark before sand technique, and cleaning the floating dust, attached on steel member surface
Object, greasy dirt, salinity and impurity；
Blasting craft includes:
Sandblasting operation is carried out in sand blasting room, in sandblasting procedures, in strict accordance with the requirement of blasting craft parameter to steel member
Surfaces externally and internally carries out blasting treatment, and at least carries out the Temperature and Humidity of a secondary environment daily and take measures according to the actual situation
Adjust ambient temperature and humidity；
The abrasive material of the cleannes and roughness that meet code requirement is selected, and periodically abrasive material is checked, is sieved, removed
Ash, supplement process are to guarantee the normal use of abrasive material；
After sandblasting, desanding, dust removal process are carried out to steel member surface.
Lacquer spraying technique includes:
Steel member surface or Front-coating mirror surface are cleared up before spray painting, remove crude removal, repairs defect；
Using aerial spraying, coating will be stirred evenly thoroughly before pouring into spray painting cylinder, and nozzle and institute's coated plate face distance controlling are in 100-
It is close when the distance between nozzle and applied plate face are sprayed compared with facade when plane is sprayed between 200mm；
Steel member after blasting treatment should carry out spray painting coating in 12 hours, and first of priming paint must not apply second before not doing solid work
Road priming paint, the spraying interval time of twice priming paint between -168 hours 24 hours, if more than 168 hours, must be by first of bottom
Paint with fine sandpaper be polished into it is subtle it is hairy after can go up second priming paint；The overlay painting interval of priming paint and intermediate coat is 24 hours -168
Hour, it must not exceed 168 hours；The overlay painting interval of intermediate coat and first of finishing coat is -168 hours 24 hours, must not exceed 168
Hour.
2. a kind of spraying process of rigid arch rib according to claim 1, it is characterised in that:
Aerial spraying is carried out using spray gun, the air compressor that spray gun uses need to be equipped with oil water separator, each sandblasting and air
When spray painting, the water in the oil water separator in air compressor need to be excluded clean.
3. a kind of spraying process of rigid arch rib according to claim 1, it is characterised in that:
Sandblasting and spray painting are carried out using PQ1 type spray gun, expect that nozzle and nozzle are all made of the large size nozzle of 2.8mm diameter.
4. a kind of spraying process of rigid arch rib according to claim 1, it is characterised in that:
When spray painting, aerial spraying is carried out using spray gun, the pressure of the compressed air for the air compressor that spray gun uses is in 4.5-
6kg/cm2。
5. a kind of spraying process of rigid arch rib according to claim 1, it is characterised in that:
For structure is complicated on steel member or is not easy the position painted, is precoated with brush, then carry out large area again
Paint spray coating operations.
6. a kind of spraying process of rigid arch rib according to claim 1, it is characterised in that:
For the commissure before the welding for building-site welding on steel member without oil paint coating；
For the commissure of building-site installation on ground, with grinder buffing welded seam area, cleaning welding slag, overlap, burr, welding fly
Object and dirt are splashed, is then primed, intermediate coat, finishing coat.
7. a kind of spraying process of rigid arch rib according to claim 6, it is characterised in that:
It for the commissure of building-site installation on ground, if instead becoming rusty before coating prime lacquer, to derust again, derusting uses
Motor wire brush processing reaches St3 grade, then removes the rust dirt and remnants abrasive material on surface, and then prime, intermediate coat and finishing coat.
8. a kind of spraying process of rigid arch rib according to claim 1, it is characterised in that:
Steel member generates local damage when entrucking, transporting, unloading, stack, and when causing part is anti-to become rusty, need to derust, derust again
It is handled using motor wire brush and reaches St3 grades, and then primed, intermediate coat and finishing coat.
9. a kind of spraying process of rigid arch rib according to claim 1, it is characterised in that:
The spray painting uses inorganic zinc-rich antirust non-skid coating.
10. according to right want power 1 described in a kind of rigid arch rib spraying process, it is characterised in that:
For steel member bolt face after sandblasting is qualified, require to paint in strict accordance with technological parameter, in painting process with
When using wet film card detect wet-film thickness, its coefficient of friction and coefficient of friction when site operation should all meet related rule after spraying
Fan Yaoli.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495237.6A CN109692796A (en) | 2018-12-07 | 2018-12-07 | A kind of spraying process of rigid arch rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495237.6A CN109692796A (en) | 2018-12-07 | 2018-12-07 | A kind of spraying process of rigid arch rib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109692796A true CN109692796A (en) | 2019-04-30 |
Family
ID=66230384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811495237.6A Pending CN109692796A (en) | 2018-12-07 | 2018-12-07 | A kind of spraying process of rigid arch rib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109692796A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976252A (en) * | 2019-11-12 | 2020-04-10 | 浙江永上特材有限公司 | Surface treatment process of corrosion-resistant alloy seamless steel pipe |
| CN112676130A (en) * | 2020-11-17 | 2021-04-20 | 中交第三公路工程局有限公司 | Bridge steel structure coating method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753911A (en) * | 2013-12-14 | 2014-04-30 | 宁波市鄞州永佳电机工具有限公司 | Marine pumping corrosion protection layer and spray coating method thereof |
| WO2018008221A1 (en) * | 2016-07-08 | 2018-01-11 | 関西ペイント株式会社 | Method for forming multilayer coating film |
-
2018
- 2018-12-07 CN CN201811495237.6A patent/CN109692796A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753911A (en) * | 2013-12-14 | 2014-04-30 | 宁波市鄞州永佳电机工具有限公司 | Marine pumping corrosion protection layer and spray coating method thereof |
| WO2018008221A1 (en) * | 2016-07-08 | 2018-01-11 | 関西ペイント株式会社 | Method for forming multilayer coating film |
Non-Patent Citations (2)
| Title |
|---|
| 朱毅，李雨红主编: "《家具表面涂饰》", 31 August 2016 * |
| 杨振波等: "港珠澳大桥桥梁工程钢结构防腐涂装关键技术与质量控制", 《涂料技术与文摘》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976252A (en) * | 2019-11-12 | 2020-04-10 | 浙江永上特材有限公司 | Surface treatment process of corrosion-resistant alloy seamless steel pipe |
| CN112676130A (en) * | 2020-11-17 | 2021-04-20 | 中交第三公路工程局有限公司 | Bridge steel structure coating method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107061929B (en) | steel circulating water pipe anti-corrosion method | |
| CN101804401A (en) | Painting method of seawater ballast tank | |
| CN109692796A (en) | A kind of spraying process of rigid arch rib | |
| CN105149195A (en) | Paint construction technology of novel steel structure | |
| CN104056763A (en) | Ship coating process | |
| CN107442369A (en) | Oil paint coating construction method under hot and humid environment | |
| CN112676130B (en) | Bridge steel structure coating method | |
| CN112981302A (en) | Site construction process of steel structure anticorrosion composite coating in south sea atmospheric environment | |
| WO2017141823A1 (en) | Preventive maintenance construction method for steel structure, and circulation-type blasting device used in said method | |
| CN102218389A (en) | Metal surface treatment method | |
| CN107127124A (en) | New outside plate IB ice formations paint application technique | |
| CN109351576A (en) | A kind of bridge construction enamelling process | |
| CN105586561A (en) | Steel structure anti-corrosion process | |
| JP6924480B2 (en) | Steel bridge maintenance method | |
| CN103272752A (en) | Field patching method after damage of zinc coating of in-service power transmission tower | |
| CN102476356A (en) | Sand blasted surface treatment process for aluminum product | |
| CN110385247A (en) | A kind of cigarette air channel barrier door nanometer heavy antisepsis technique | |
| CN110004397A (en) | Steel structure anti-corrosion process | |
| CN207296025U (en) | anti-corrosion steel structure | |
| CN111515099A (en) | Airless spraying process for steel structure surface | |
| CN111910589A (en) | Channel steel gate on-site rust removal and corrosion prevention protection structure and rust removal and corrosion prevention method | |
| JP2004351348A (en) | Rust preventing processing method for parking pallet of multistory parking garage | |
| CN116748104B (en) | Construction method of rolling-resistant wear-resistant anti-corrosion coating material for heavy-duty deck | |
| CN107486381A (en) | Valve paint application technique | |
| JP6885577B2 (en) | Steel bridge maintenance method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190430 |
|
| WD01 | Invention patent application deemed withdrawn after publication |