CN106622897A - Construction process of anticorrosion ceramic organic coating used for inner wall of desulfurizing tower and inner wall of flue - Google Patents
Construction process of anticorrosion ceramic organic coating used for inner wall of desulfurizing tower and inner wall of flue Download PDFInfo
- Publication number
- CN106622897A CN106622897A CN201611206769.4A CN201611206769A CN106622897A CN 106622897 A CN106622897 A CN 106622897A CN 201611206769 A CN201611206769 A CN 201611206769A CN 106622897 A CN106622897 A CN 106622897A
- Authority
- CN
- China
- Prior art keywords
- wall
- organic coating
- corrosion
- resistant ceramic
- flue
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
-
- 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
- B05D3/12—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 by mechanical means
-
- 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
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a construction process of an anticorrosion ceramic organic coating used for an inner wall of a desulfurizing tower and an inner wall of a flue. The process comprises the following steps of examining the state of a primary surface, treating a welded joint, derusting by sandblasting, examining cleaning and protecting, detecting and confirming by a technical staff, spraying an undercoat, spraying a finishing coat, examining the appearance of a coating and the membrane thickness, conducting electric spark testing, repairing a leaking point, and maintaining. The spraying process improves the construction safety and shortens the construction period, and the comprehensive cost performance ratio of a vinyl glass flake is lower than that of the organic coating. The project changes the corrosion resistance process of the existing desulfurizing tower, the manual blade coating is improved to mechanical spraying, the construction process is high in solid content and environmentally friendly and realizes energy conservation and emission reduction, the construction safety is improved, the construction period is shortened, the degree of innovation of the project is high, the innovations of the performances of corrosion resistance and abrasion resistance of the product and the process route are prominent, the effect of promoting the technical progress of the industry is obvious, the overall technology reaches the domestic advanced level, and the situation that only the vinyl glass flake can be used as the anticorrosion layer in the former application of the industry is changed.
Description
Technical field
The present invention relates to coating spraying coating process technical field, the more particularly to corrosion-resistant pottery of desulfurization inner wall of tower and flue inner wall
The construction technology of porcelain organic coating.
Background technology
The inside lining anti-corrosive of the inwall of desulfurizing tower and flue is generally glass flake, glass flake plasticine in prior art
(Glass-flake mastic resin) adds glass flake and powder etc. to be formulated, can scrape with resin as cementitious matter
Smear the mixing material of construction.The internal structure of glass flake is quite similar with glass fibre, is that melten glass is in tensile force
In the state of, rapidly cooled down and be obtained.Because glass-flake coating has anti-corrosion, permeability resistance is good, and film shrinkage factor is low,
Thermal coefficient of expansion is little, and Googol motion controller is few, wear-resistant, easy construction, it is easy to repair, thus glass-flake coating chemical industry,
The industries such as metallurgy, chemical fibre, plating, building have extensive application.Glass flake anti-corrosion used in prior art exists larger
Potential safety hazard, the glass flake chance fire that at present we are used is inflammable, causes crushing loss, current China various places to be permitted
Many desulfurizing towers cause the serious accident of fire because of anti-corrosion, and this technology is using new highly corrosion resistant ceramics organic coating as anti-
Rotten material, with nonflammable characteristic, fundamentally solves the problems, such as because anticorrosive construction causes fire incident.And construct week
Phase is long, and working security cannot be guaranteed.
The content of the invention
To overcome problems of the prior art, the invention provides a kind of desulfurization inner wall of tower and flue inner wall corrosion resistant
The construction technology of the ceramic organic coating of erosion.
The present invention solves its technical problem and is adopted the technical scheme that：This kind of desulfurization inner wall of tower and flue inner wall corrosion resistant
The construction technology of the ceramic organic coating of erosion, primary surface status checkout → weld seam process → derusting by sandblasting → dress watch and protection →
Technical staff detects that confirmation → spray-applied primer → spray paint → appearance of coat and thickness inspection → electric spark detection → leak source are repaiied
Mend → maintenance.
Further, primary surface status checkout includes oil removing and except salinity.
Further, desalination timesharing, sandblasting surface of steel plate soluble chloride content is not more than 10 μ g/ ㎝2, surface is present
Salinity it is exceeded when using high pressure fresh water rinse.
Further, spray-applied primer is for together, spray paint is 2-3 roads.
Further, machinery is carried out to corrosion-resistant ceramic organic coating with shearing machine blender to stir until color and dense
Degree reach it is homogeneous, then be slowly added into curing agent and thoroughly stirring 3-5 minutes.
Further, derusting by sandblasting and the base material cleaned out priming after 4 hours.
Further, 8-24 hours spray paint in priming paint interval together, will be purged before spraying to primer coat surface.
Further, per layer of paint build reaches 450-500 microns.
To sum up, of the invention above-mentioned technical proposal has the beneficial effect that：
The spraying coating process improves the security of construction, and shortens construction period, and comprehensive cost performance vinyl
Glass flakes are low；This project changes the anticorrosion process of existing desulfurizing tower, and by artificial blade coating mechanically spraying is promoted to；High solid
Part, environmental friendliness, energy-saving and emission-reduction improve the security of construction, shorten the construction time；The project has degree of innovation high, product
The innovation of anti-corrosion and anti-wear performance and process route is projected, and to technical progress of industry facilitation substantially, overall technology reaches state
Interior top standard, changing the conventional application of the industry can only use vinyl glass flakes as the situation of anticorrosive coat.
Specific embodiment
1 coating process flow process
Technological process：Primary surface status checkout (oil removing and except salinity) → weld seam process → derusting by sandblasting → dress watch and
Protection → technical staff detect confirmation → spray-applied primer (1 road) → spray paint (2-3 roads) → appearance of coat and thickness inspection →
Electric spark detection → leak source repairs → maintenance.
2 base treatments are required
2.1 surface treatment
2.1.1 oil removing
The oil on surface and the clean applications solvent of grease or scavenger specially and clean rag scouring.
2.1.2 salinity is removed
Sandblasting surface of steel plate soluble chloride content is not more than 10 μ g/ ㎝2.The salinity of surface presence should be adopted when exceeded
High pressure fresh water is rinsed.
2.1.3 rust cleaning
2.1.3.1 steel part should carry out necessary structure pretreatment before derusting by sandblasting, including：
2.1.3.1.1 coarse weld grinding fairing, spatter thing scraper or abrasive machine are removed.Depth is on weld seam
More than 0.8mm or width answer repair welding to process less than the undercut of depth, and fairing of polishing；
2.1.3.1.2 sharp edge grinder buffing is into the fillet that radius of curvature is 2mm；
2.1.3.1.3 when the peak-valley difference of cutting edge is more than 1mm, it is polished to below 1mm.Steel plate edge cuts hardened layer,
0.3mm is ground off with emery wheel；
2.1.3.1.4 telogenesis stacking, crack, field trash, grinding process, if necessary repair welding.
2.1.3.2 compressed-air blast cleaning-current effective derusting method
The Sa2.5 levels of the regulations of GB/T 8923 ought to be arrived at steel surface；Steel surface roughness is 75 μm or so, and table
Surface roughness is not more than 1/3rd of total coating thickness.
Blasting treatment：The major parameter of sandblasting should be noted that：Sandblasting distance, sandblasting angle, air pressure, blast nozzle aperture,
Translational speed, abrasive hardness of sand-blasting gun etc.
2.1.4 dedusting
After sandblasting completion, sandblasting residue is removed, using vacuum cleaner or oil-free, anhydrous compressed air, cleaning surface ash
Dirt, especially depressed area.Before application, therefore, to assure that be dustless free of contamination surface, after acceptance(check), lower road work can be just carried out
Sequence.
Sand blasted surface dust cleannes after cleaning require be not more than the regulations of GB/T 18570.3 2 grades.
2.1.5 the time rule of application after being surface-treated
When the dry tack free and oil-free for processing, it is ashless in the case of, must application immediately (generally 4 hours) design application rule
Priming paint specified in model.
3 painting environments：Calculate and record environmental condition
3.1 construction environment temperature are preferably：More than 5 DEG C；
3.2 construction environment relative humidity is not preferably greater than 80%；
During 3.3 steel surface coating decoration, steel surface temperature necessarily be greater than 3 DEG C of dew-point temperature；
3.4, when strong wind, rain, mist, snow and strong sunlight are irradiated, forbid constructing out of doors.
4 coating decorations
4.1 dispensing
4.1.1 carry out machinery to corrosion-resistant ceramic organic coating with high shear mechanical mixer to stir until color and concentration
Reach it is homogeneous, then be slowly added into curing agent and thoroughly stir 3-5 minutes.Should not excessive exercise, especially environment temperature be higher than 29
Degree Celsius.
4.1.2 specify special messenger strictly accurately to press the proportioning on the quality certification, carry out mixing material；Before the use, mix
Thing must be homogeneous consistent.
4.1.3 after mixing, compound is poured in a clean container by 80 mesh sieves bulky grain is removed with this.
4.1.4 mixture region, needs rain-proof, keeps cleaning, exists without fragment.All empty barrels need to be deposited in specified area
Domain.
4.1.5 coordinate combined amount about to use (25 DEG C) Zuo You of 2-4 hours every time, be finished within working life.
Can be adjusted according to in-situ spraying equipment and pressure ratio when 4.1.6 mixing, dope viscosity can be suitably added 5-10%
Left and right special diluting agent.
4.1.7 if agitator inside courtyard is in hardening state, must stop using immediately and detergent line in time.
4.1.8 the preparation of coating keeps clean with working instrument, it is impossible at will mixed.Daily cleaning spraying equipment,
The instruments such as paint can, painting brush, are cleaned with special diluting agent, are soaked.
4.2 coating process
4.2.1 the derusting by sandblasting and base material cleaned out will be in 4 hours or so primings.
4.2.2 spray the organic priming paint of corrosion-resistant ceramic together, and check the application shape at the position at commissure and negative and positive angle
Condition, at holiday and be difficult at thick painting can the corrosion-resistant ceramic organic coating priming paint of brushing in advance, then integral spray again.
4.2.3 the organic road of finish paint 1 of priming paint interval 8-24 hour sprayings corrosion-resistant ceramic, will blow primer coat surface before spraying
Sweep.And the defective place's cleaning of coating surface is polished and repaired.
4.2.4 spray lower road finish paint to spray with front road finish paint overlay painting interval 8-24 hours.
5 coating performances are detected
5.1 appearance of coat are detected
Surface is without holiday, pore, crackle and obvious sagging and corrugation.
5.2 Thickness sensitivity
5.2.1 detect by design specification thickness requirement, it is every to be required for together detecting thickness and keeping a record.Suggestion build
Reach 450-500 microns.
5.2.2 build distribution：Not less than regulation thickness, remaining is detected more than 80% test point build
The build of point is not less than the 80% of regulation thickness.
5.3 electric sparks are detected
By 5000 volts.
6 points for attention
The painting operation in the quality problems Yi Fa areas at position such as corner, ditch seam, commissure should be focused on during 6.1 application,
Note changing application mode in good time, for the film thickness for ensureing, can be to adopting painting brush dipping mode at the region before spraying
Carry out, then integral spray bottom again.
Recoating interval between 6.2 coatings determines that recoating interval should meet regulation requirement with reference to regulation with scene temperature.
6.3 coating process are carried out according to the order and construction road number of the supporting requirement of system, will be to film thickness measuring between per pass.
In 6.4 coating process, all kinds of construction notes are complete, including ambient parameter, coating consumption, engineering time etc..
6.5 such as ceramic coating preceding working procedure hardening times are longer and the end of term is harder, it is necessary to which polishing removes smooth coating
Surface.Jing after surface cleaning process, carrying out by above-mentioned coating construction procedure.
After 6.6 are fully cured 7 days, to electrodeposited coating film Spark plug optical fiber sensor.And mark carries out sectional repair on leak source does.
Before 6.7 films are not dry, the pollutants such as water must not be trampled or stain.
7 safety precautions
7.1 will keep the ventilation in operation area, painting site open flames prohibited operation the moment when painting operation is carried out.
When 7.2 paints and diluent are opened barrel, it is impossible to tapped with sudden force with metallic weapon, in case producing spark causes fire
Calamity.
7.3 personnel for entering operation area, must not carry the kindling materials such as lighter, match, must not be engaged in and be possible to cause machinery
The various operations of spark and electric spark.
7.4 before spraying operation, can on hand, on arm, on the face using containing lanolated skin cream.
7.5 wearing protective garments：
7.5.1 when mixing prepares, and repairs (coating), rubber gloves is put on, protective whole body suit, chemical goggles, air/
Steam purification respirator.
7.5.2 when being sprayed, rubber gloves, protective whole body suit, plastics boots, protective hood and full face are put on
Positive air pressure mask.Adhesive tape closes all openings.
7.5.3 the coating on skin station should not be washed off with solvent.Only can be using soap and water.Use from newly after cleaning
Skin cream.
7.5.4 if skin irritatin, using cortisone ointment or Dexamethasone ointment.
Cost performance contrast table
The construction technology greatly improves the security of construction, and shortens construction period, and comprehensive cost performance
Vinyl glass flakes are low；This project changes the anticorrosion process of existing desulfurizing tower, and by artificial blade coating mechanically spraying is promoted to；It is high
Solid part, environmental friendliness, energy-saving and emission-reduction improve the security of construction, shorten the construction time；The project has degree of innovation high,
Product is anti-corrosion and the innovation of anti-wear performance and process route is projected, and to technical progress of industry facilitation substantially, overall technology reaches
To domestically leading level, changing the conventional application of the industry can only use vinyl glass flakes as the situation of anticorrosive coat.Current institute
With anti-corrosion material based on scale, once unique blank, wound of the project has been filled up in the innovation of construction material and construction technology
It is new ripe through experiment, application, reach the effect wanted without similar replacement scheme, it is desirable to the project energy broader applications in
In anti-corrosion project.
Above-described embodiment is only the description carried out to the preferred embodiment of the present invention, and not the scope of the present invention is entered
Row limit, on the premise of without departing from design spirit of the present invention, relevant technical staff in the field to the present invention various modifications and
Improve, all should expand in protection domain determined by claims of the present invention.
Claims (8)
1. the desulfurization inner wall of tower and flue inner wall construction technology of corrosion-resistant ceramic organic coating, it is characterised in that base table planar
State inspection → weld seam process → derusting by sandblasting → dress watch and protection → technical staff's detection confirmation → spray-applied primer → spraying
Finish paint → appearance of coat and thickness inspection → electric spark detection → leak source repair → maintenance.
2. the desulfurization inner wall of tower according to claim 1 and flue inner wall construction technology of corrosion-resistant ceramic organic coating,
Characterized in that, primary surface status checkout includes oil removing and except salinity.
3. the desulfurization inner wall of tower according to claim 2 and flue inner wall construction technology of corrosion-resistant ceramic organic coating,
Characterized in that, desalination timesharing, sandblasting surface of steel plate soluble chloride content is not more than 10 μ g/ ㎝2, the salinity that surface is present
Rinsed using high pressure fresh water when exceeded.
4. the desulfurization inner wall of tower according to claim 1 and flue inner wall construction technology of corrosion-resistant ceramic organic coating,
Characterized in that, spray-applied primer is for together, spray paint is 2-3 roads.
5. the desulfurization inner wall of tower according to claim 1 and flue inner wall construction technology of corrosion-resistant ceramic organic coating,
Characterized in that, carry out machinery to corrosion-resistant ceramic organic coating with shearing machine blender stirring until color and concentration reach
It is homogeneous, then be slowly added into curing agent and thoroughly stir 3-5 minutes.
6. the desulfurization inner wall of tower according to claim 1 and flue inner wall construction technology of corrosion-resistant ceramic organic coating,
Characterized in that, derusting by sandblasting and the base material cleaned out priming after 4 hours.
7. the desulfurization inner wall of tower according to claim 1 and flue inner wall construction technology of corrosion-resistant ceramic organic coating,
Characterized in that, priming paint is spaced 8-24 hours spray paint together, primer coat surface is purged before spraying.
8. the desulfurization inner wall of tower according to claim 1 and flue inner wall construction technology of corrosion-resistant ceramic organic coating,
Characterized in that, per layer of paint build reaches 450-500 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206769.4A CN106622897A (en) | 2016-12-23 | 2016-12-23 | Construction process of anticorrosion ceramic organic coating used for inner wall of desulfurizing tower and inner wall of flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206769.4A CN106622897A (en) | 2016-12-23 | 2016-12-23 | Construction process of anticorrosion ceramic organic coating used for inner wall of desulfurizing tower and inner wall of flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106622897A true CN106622897A (en) | 2017-05-10 |
Family
ID=58827293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611206769.4A Pending CN106622897A (en) | 2016-12-23 | 2016-12-23 | Construction process of anticorrosion ceramic organic coating used for inner wall of desulfurizing tower and inner wall of flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106622897A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480157A (en) * | 2018-02-08 | 2018-09-04 | 西安华捷奥海新材料有限公司 | One kind urging cracking unit desulphurization denitration inner wall of tower anticorrosion composite membrane and its implementation |
| CN110385247A (en) * | 2018-04-19 | 2019-10-29 | 无锡市华通环保设备有限公司 | A kind of cigarette air channel barrier door nanometer heavy antisepsis technique |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822936A (en) * | 2010-05-14 | 2010-09-08 | 中建五局第三建设有限公司 | High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer |
| CN102154610A (en) * | 2010-02-11 | 2011-08-17 | 上海建冶科技工程股份有限公司 | Construction technology for anticorrosive composite coating of steel structure |
| CN103173086A (en) * | 2011-12-23 | 2013-06-26 | 江苏国力电力安装工程有限公司 | Fire-retardant integrally sprayed polymer anti-corrosion lining material for wet desulphurization chimneys of thermal power plants |
| CN105499034A (en) * | 2015-12-30 | 2016-04-20 | 山东瑞嘉通风环保科技有限公司 | Internal corrosion resistant treatment process of desulfurization tower |
-
2016
- 2016-12-23 CN CN201611206769.4A patent/CN106622897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154610A (en) * | 2010-02-11 | 2011-08-17 | 上海建冶科技工程股份有限公司 | Construction technology for anticorrosive composite coating of steel structure |
| CN101822936A (en) * | 2010-05-14 | 2010-09-08 | 中建五局第三建设有限公司 | High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer |
| CN103173086A (en) * | 2011-12-23 | 2013-06-26 | 江苏国力电力安装工程有限公司 | Fire-retardant integrally sprayed polymer anti-corrosion lining material for wet desulphurization chimneys of thermal power plants |
| CN105499034A (en) * | 2015-12-30 | 2016-04-20 | 山东瑞嘉通风环保科技有限公司 | Internal corrosion resistant treatment process of desulfurization tower |
Non-Patent Citations (2)
| Title |
|---|
| 赵卓等: "《工程结构耐久性》", 31 August 2012, 中国电力出版社 * |
| 赵博: "《APC防腐蚀工艺在电厂烟囱的应用与节能管理》", 《资源节约与环保》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480157A (en) * | 2018-02-08 | 2018-09-04 | 西安华捷奥海新材料有限公司 | One kind urging cracking unit desulphurization denitration inner wall of tower anticorrosion composite membrane and its implementation |
| CN108480157B (en) * | 2018-02-08 | 2021-03-26 | 西安华捷奥海新材料有限公司 | Anti-corrosion composite membrane for inner wall of desulfurization and denitrification tower of catalytic cracking unit and implementation method thereof |
| CN110385247A (en) * | 2018-04-19 | 2019-10-29 | 无锡市华通环保设备有限公司 | A kind of cigarette air channel barrier door nanometer heavy antisepsis technique |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bahadori | Essentials of coating, painting, and lining for the oil, gas and petrochemical industries | |
| CN107442369A (en) | Oil paint coating construction method under hot and humid environment | |
| CN101822936A (en) | High-temperature scale anticorrosion construction method for heat-engine plant desulfurizer | |
| CN106622897A (en) | Construction process of anticorrosion ceramic organic coating used for inner wall of desulfurizing tower and inner wall of flue | |
| Bhatia | Thermal spraying technology and applications | |
| CN108906554A (en) | A kind of rolling stock coating layer structure and coating process | |
| CN102380471A (en) | Coating process for special modified solvent-free epoxy coating for glass reinforced plastic | |
| CN106883734A (en) | A kind of application of resin ceramic material in the antiseptic project of wet desulphurization absorption tower | |
| CN208810511U (en) | A kind of rolling stock coating layer structure | |
| CN103657993A (en) | Fireproof process for steel structure | |
| Bortak | Guide to Protective Coatings Inspection and Maintenance | |
| Guyer et al. | n Introduction to Coatings and Paints for Professional Engineers | |
| CN110860448A (en) | Novel polyurethane coating process for nodular cast iron pipe fitting | |
| CN104100099A (en) | Method for cleaning building surface by dry sand spraying | |
| Ghorbanpoor et al. | Aesthetic coatings for steel bridge components. | |
| CN108404642A (en) | The glass flake composite anti-corrosive technique of desulfurization by lime gypsum method tower | |
| CN108097007A (en) | Ammonia desulfurizing process inside lining anti-corrosive technology | |
| Fleming et al. | Surface preparation: Practices, equipment, and standards through 25 years | |
| GGSGG et al. | Suggested Painting Specifications for | |
| Superseding | USACE/NAVFAC/AFCESA/NASA UFGS-09 97 02 (November 2009) | |
| Miller | Cleaning and Recoating Your Storage Tanks | |
| Lowery et al. | Minimizing Production Shutdowns through Effective Application and Maintenance of Safety Pit Coatings | |
| Tator | Paint Systems | |
| CN117230735A (en) | Preparation technology of carbon-silicon composite low-surface-energy long-acting bridge renovation protective coating | |
| CORPS OF ENGINEERS WASHINGTON DC | Engineering and Design. Thermal Spraying: New Construction and Maintenance |
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: 20170510 |
|
| WD01 | Invention patent application deemed withdrawn after publication |