CN106018708A - Method for determining performance of high-temperature sulfur corrosion prevention coating of water-cooling wall of boiler - Google Patents
Method for determining performance of high-temperature sulfur corrosion prevention coating of water-cooling wall of boiler Download PDFInfo
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- CN106018708A CN106018708A CN201610578028.2A CN201610578028A CN106018708A CN 106018708 A CN106018708 A CN 106018708A CN 201610578028 A CN201610578028 A CN 201610578028A CN 106018708 A CN106018708 A CN 106018708A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
- G01B7/105—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring thickness of coating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N2033/0096—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 testing material properties on thin layers or coatings
Abstract
The invention discloses a method for determining performance of a high-temperature sulfur corrosion prevention coating of a water-cooling wall of a boiler. The method comprises the following steps: (1) analyzing chemical constituents of raw materials of the coating, and testing alloy ingredients and contents of the raw materials; (2) measuring the thickness of the coating, and determining the thickness uniformity of the coating; (3) carrying out energy spectrum analysis and microstructure morphology testing on the coating, and determining micromorphology, porosity and phase composition; (4) testing the bonding strength of the coating, and determining the bonding strength of the coating and a water-cooling wall tube; (5) carrying out thermal shock test on the coating, and determining temperature cycling resistance of the coating; (6) carrying out high-temperature sulfur corrosion test on the coating, and determining the comprehensive performance of the high-temperature sulfur corrosion prevention coating; and (7) carrying out thermal transfer characteristic test on the coating. By the method, the high-temperature sulfur corrosion prevention effect of the coating can be evaluated comprehensively, and a determining system for identifying the performance of the high-temperature sulfur corrosion prevention coating is provided and is simple and reliable.
Description
Technical field
The present invention relates to the assay method of a kind of boiler water wall high temperature-proof sulfur corrosion coating performance.
Background technology
In order to effectively reduce the No in flue gasXConcentration, thermal power plant enters the peak period of low NO transformation.
The transformation of low NO then result in the reducing atmosphere reinforcement near burner at water-cooling wall, thus aggravates the height of water-cooling wall
Temperature sulfur corrosion.At present, one of maximally effective approach of water-cooling wall high temperature-proof sulfur corrosion, it is simply that implement spraying.
But owing to current water-cooling wall spraying market anomalies is chaotic, it is important to thermal power plant also lacks spraying technology and understands
With coating quality supervision and inspection means, thus causing spraying effect to vary, some coatings can be adhered to 3～5 years, and anticorrosion is imitated
Fruit is good；Some coatings just disappear totally less than some months, almost do not have antiseptic effect, waste the engineering cost of nearly million
With.
Thus be necessary to design a kind of scientific and effective water-cooling wall spraying assay method.
Summary of the invention
The present invention is directed to above-mentioned technical problem, it is provided that the mensuration side of a kind of boiler water wall high temperature-proof sulfur corrosion coating performance
Method.
For solving above-mentioned technical problem, the technical scheme that the present invention includes is as follows:
The assay method of a kind of boiler water wall high temperature-proof sulfur corrosion coating performance, comprises the following steps:
1) coating raw material is carried out Chemical bath deposition, inspection raw material alloy composition and content；
2) coating thickness measurement, measures layer thickness uniformity；
3) coating is carried out energy spectrum analysis and microstructure morphology inspection, measures microscopic pattern, porosity, thing phase composition；
4) anchoring strength of coating is tested, measure the binding ability of coating and water screen tube；
5) coating thermal shock test, measures the cold-and-heat resistent alternation ability of coating；
6) coating high-temp sulfur corrosion test, measures the combination property of coating high temperature-proof sulfur corrosion；
7) coating heat-transfer character test.
The concrete mensuration process of boiler water wall high temperature-proof sulfur corrosion coating of the present invention is as follows:
1) raw material Chemical bath deposition: require that in silk material, the mass percent Han Cr reaches 40%, and the mass percent Han Ni reaches
To 50%；
2) coating layer thickness: use magnetic thickness tester detection coating layer thickness, it is desirable to thickness reaches 0.3～0.5mm.
3) coating energy spectrum analysis and microstructure:
Microcosmic appearance is not allow for crackle and penetrance defect；
Porosity≤3%；
Coating must be by Cr2O3Phase, the face-centered cubic solid solution phase of Ni are constituted.
4) bond strength: the bond strength between coating and water-cooling wall base material bond strength, coating measures and all should be not less than
40MPa。
5) thermal shock performance test: test temperature 600～720 DEG C, insulation 1.5～2 hours, be cooled to 11～20 DEG C, so
Reciprocal 10～15 times.Coating does not falls off, does not ftractures, and is up to standard.
6) high temperature-proof sulfur corrosion performance test: test temperature 600～720 DEG C, the gaseous elemental sulfur of corrosive medium flowing,
Etching time about 10～30 hours.Coating does not falls off, does not ftractures, and tube base material does not produce corrosion, is up to standard.
7) heat-transfer character test: coating heat conductivity should must be not less than with austenitic stainless steel heat conductivity basic simlarity
13W·m-1·K-1。
In the present invention, coating spraying material selection NiCrTi series sprayed on material.Concrete sulfur corrosion material as anti-in PS45 high temperature
Material.
In step 3), assay is good, and actual conditions is as follows:
Coating is carried out energy spectrum analysis, rich in Cr, O, Ni element.Recycling X-ray diffractometer thing is analyzed mutually, coating by
Dark Cr2O3Phase, the equal biphase composition of face-centered cubic solid solution of light Ni.
Use and have the beneficial effects that produced by technique scheme:
1, the method for testing of the present invention, novel in design, scientific and reasonable, can effectively detect boiler water wall high temperature-proof sulfur corrosion and be coated with
The performance of layer, thus protect tube wall durable in use.
2, this method is used, can be with the high temperature-proof sulfur corrosion effect of Comprehensive Assessment coating, for identifying that high temperature-proof sulfur corrosion is coated with
The performance quality of layer provides mensuration system, and simple and reliable.
3, measure qualified water-cooling wall high temperature-proof sulfur corrosion coating through this assay method, service life more than 40 months,
Still there is preferable high temperature-proof sulfur corrosion effect.
4, assay method of the present invention can effectively control to spray at present the material that market generally exists mix the spurious with the genuine, construct and
The confusions such as spraying coating process confusion, delivery receiving acceptance blindness, beneficially industry are rectified and develop in a healthy way.
Assay method each step effect of the boiler water wall high temperature-proof sulfur corrosion coating performance of the present invention is as follows:
1) raw material Chemical bath deposition: this operation index is raw-material alloy composition and content thereof；Become according to alloy
Divide and content can tentatively pass judgment on this raw-material high temperature-proof sulfur corrosion performance and effect.
2) coating layer thickness: this operation index is layer thickness uniformity.The integrity of thickness evenness and coating and
Coverage property is closely related, this is because: owing to the thermal expansivity of coating and tube base material is inconsistent, blocked up it is easily caused coating
Crack；But cross the thin coating that easily causes again cannot the roughness of tube base material be covered；Therefore uniform coating thickness
Property determines integrity and the coverage property of coating.
3) coating energy spectrum analysis and microstructure: this operation index is the microscopic appearance of coating, porosity and thing phase
Tissue.Thing phase constitution and morphosis determine whether coating has the ability of high temperature-proof sulfur corrosion.Examination porosity is mainly
Because: exist if any relatively concrete dynamic modulus, then corrosive medium sulfur contacts tube base material along hole, produces and corrodes, and corrosion product volume
Relatively big (big 8 times of the sulfide volume ratio oxide volume of general iron-based), bigger volumetric expansion is then the best by other
Coating capping；Additionally porosity also reflects raw-material quality and spraying application quality from side.
4) bond strength: this operation index is the associativity between coating and the binding ability of tube base material, coating
Energy.Can be determined that firmness and the collapse resistance degree of coating.
5) thermal shock performance: this operation index is all the ability that coating stands alternating hot and cold.During boiler operatiopn, water-cooling wall is coated with
Layer temperature to reach nearly about 500 DEG C, and can be cooled to room temperature during boiler down, along with the frequent start-stop of boiler, anti-cold
The ability of hot alternation is the primary condition that coating is firm.
6) high temperature-proof sulfur corrosion performance: this operation index is the final combination property of coating.
7) heat-transfer character: this operation index is the thermal efficiency of boiler.Coating should have the performance of high temperature-proof sulfur corrosion,
There is good conductivity of heat again, it is impossible to affect boiler efficiency and economic benefit.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further detailed explanation.
Embodiment one:
This example has carried out as a example by water-cooling wall high temperature-proof sulfur corrosion spraying by certain thermal power plant, and its coating materials is that PS45(belongs to
NiCrTi series sprayed on material).The Ultrasonic Arc Sprayed mode being widely used at present is used to carry out spraying application.Use this
The bright mensuration having carried out water-cooling wall high temperature-proof sulfur corrosion coating performance, every bioassay standard and process are as follows.
1) raw material Chemical bath deposition: in coating material silk material, the amount containing Cr to reach more than 40%, and ni content to reach
To more than 50%.
Mainly due to: because containing the Cr element of more than 40%, in spraying process, stable chromium oxide can be formed fine and close
Protecting film, it can intercept corrosive medium and enter in coating.And containing more than 50% Ni element can have superpower attachment characteristic and
Ductility, make coating and the attachment of tube base material more firmly, thermal expansivity consistent.But cause into when containing the highest meeting of Cr, Ni
This straight line increases, and antiseptic effect does not has bigger raising.
Employing chemical constituent analyzer is measured, and assay is as shown in table 1: shows the chemical analysis of this material and contains
It is qualified to measure.
Table 1 Chemical bath deposition
2) coating layer thickness: thickness 0.3～0.5mm.
Mainly due to: the thinnest roughness that can not effectively cover tube base material；The thickest again because of coating thermal expansivity and pipe
Subbase material is variant, easily occurs that coating surface ftractures.
Spraying area has been carried out thickness measuring, and assay shows: major part area thickness is substantially distributed in 0.4～0.5mm
Region.Only small part area thickness is less than 0.3mm(owing to using magnetic thickness tester, does not have magnetic due to coating, and pipe base
Material is ferromagnetism, just occurs in that magnetic shows when thickness is less than 0.3mm, that is coating fails to cover the coarse of tube base material
Degree), this subregion need to be filled spray to 0.5mm, side is qualified.Thickness evenness is qualified, and spreadability is good.
3) coating energy spectrum analysis and microstructure inspection:
Microcosmic appearance is not allow for crackle and penetrance defect；
Porosity≤3%；
Coating must be constituted by dark color is biphase with light color, and dark color is mainly Cr mutually2O3, the face-centered cubic that light color is mainly Ni mutually is solid
Solution.Biphase disperse is uniformly distributed.
Mainly due to:
When having crackle or penetrance defect, coating cannot play the effect of protection base material at all.
The biggest coating of porosity easily ftractures, and can not be reached owing to affecting porosity by spraying embodiment
Less than 1%.Porosity is more than 3%, illustrates that spraying is not tight, sprays uneven, be not completely covered, does not covers part and easily become corruption
Pitting.
Only Cr2O3Phase, the face-centered cubic solid solution phase of Ni can intercept corrosive medium and enter coat inside, as
There is other phase times, the high temperature-proof sulfur corrosion effect of coating will be destroyed.
Assay is good, specific as follows:
Utilizing scanning electron microscope to carry out microscopic appearance inspection, coating combines densification, there is not defect and the crackle of penetrance, explanation
Coating microscopic appearance is complete.
Image measurement method is utilized to calculate coating porosity, all about 2%, this qualified.
Utilizing scanning electron microscope to carry out microscopic appearance inspection, coating biphase with light color is made up of dark color, after respectively to dark color
Carrying out energy spectrum analysis with light color district, dark phase enriched element is mainly Cr and O, and light color phase enriched element is Ni, has no Fe element
It is good that existence then further illustrates coating coverage.Utilize again X-ray diffractometer that with light color, dark color has been carried out thing mutually to divide mutually
Analysis, display dark color is mainly Cr mutually2O3, chromium oxide has compactness, tightr than eroded elements element sulphur, the knot of this densification
Structure has intercepted sulfur as barrier and has penetrated through coating；And light color is mainly the face-centered cubic solid solution of Ni, biphase even dispersion mutually
Distribution, is up to standard.
4) bond strength: the bond strength between coating and water-cooling wall base material bond strength, coating all should be not less than
40MPa。
Mainly due to: bond strength reflects the ability of the destructions such as the impact of coating external force resistance, shearing；When bond strength is less than
During 25MPa, easily come off in actual operating mode.
Assay: carry out tension test with cupping machine, prepares sample by GB/T8642-2002 standard and tries
Test.Result display fracture position is all at coating and water-cooling wall base material binding site, and bond strength is all at more than 44MPa.
5) thermal shock performance: test temperature 700 DEG C, insulation 2 hours, be cooled to about 11 DEG C, 15 times and so forth.Coating is not
Come off, do not ftracture, be up to standard.
Mainly due to: test temperature 700 DEG C, insulation 2 hours, be cooled to about 11 DEG C, and so forth 15 times with actual work
Under condition, (water-cooling wall wall surface temperature is 400 DEG C～about 500 DEG C, and with stove Slow cooling after blowing out) boiler start/ stop 15 times is (general
In the case of, 5 year boiler start/ stop number of times about about 10 times) Thermal Fatigue Damage equivalent value identical.
The acquisition of this conclusion is determined by the following procedure: due to the damage of Thermal Fatigue Damage i.e. alternating hot and cold that is Thermal-shock Damage.
Therefore thermal fatigue tester is used tube base material 15CrMo steel to carry out test temperature 700 DEG C, insulation 2 hours, is cooled to 11 DEG C
Left and right, the and so forth thermal fatigue test of 15 times, then use X-ray diffractometer to measure thermal stress, simultaneously to the pot running 5 years
Stove (this stove start and stop record 15 times) water-cooling wall pipe cutting, its material is similarly 15CrMo steel, and heat measured by same utilization X-ray diffractometer
Stress.Both heat stress value essentially identical (thermal stress is that the direct of heat exhaustion characterizes), therefore both Thermal Fatigue Damage equivalent values
Identical.
Assay: with heat-treatment furnace by coating sample (coating layer thickness 0.5mm), be heated to 700 DEG C, insulation 2 hours, cold
But to about 11 DEG C, and so forth, coating sample is tested.After repeating 22 times, just start occur what coating peeling deformed
Sign.
6) high temperature-proof sulfur corrosion performance: test temperature 700 DEG C, the gaseous elemental sulfur of corrosive medium flowing, on using
Through-flow gaseous elemental sulfur in stating the water screen tube of coating, etching time about 20 hours.Coating does not falls off, does not ftractures, tube base material
Corrosion can not be produced, be up to standard.
Mainly due to test temperature 700 DEG C, the gaseous elemental sulfur of corrosive medium flowing, etching time about 2 hours
The high-temperature sulfur corrosion weightening finish of 20G bloom shape sample, with coal-fired sulfur content 3～4%(general power plant fire coal sulfur content substantially 1%
Hereinafter, the sulfur content coal in 3～4% is sulphur coal, only produces in Yunnan-guizhou Area and uses) the operation 20G steel of 4 months under operating mode
The high-temperature sulfur corrosion weightening finish of sample is hung in the stove of test block, basically identical.
Linear extrapolation 10 times, i.e. test temperature 700 DEG C, the gaseous elemental sulfur of corrosive medium flowing, etching time is about
20 hours identical with running 40 months high-temperature sulfur corrosion damage equivalent values under coal-fired sulfur content 3～4% operating mode.
Assay: employing high-temperature atmosphere furnace, test temperature is set to 700 DEG C, the gaseous state list of corrosive medium flowing
Matter sulfur, through-flow gaseous elemental sulfur in the water screen tube using above-mentioned coating, etching time about 20 hours, coating sample is carried out
Inspection.Scanning electron microscope examination and X-ray diffraction analysis is carried out after off-test.Scanning electron microscope examination finds that coating surface is fine and close
Gritty texture, has no coating cracking.Coating sample carries out XRD analysis, and result display coating is through the compacted particulate of corrosion
Tissue is main by Cr2O3With Cr2NiO4Constitute.This explanation coating has intercepted corrosive medium gaseous elemental sulfur and has entered in coating, fully
Protecting tube base material, this illustrates high temperature-proof sulfur corrosion excellent effect.
7) heat-transfer character: heat conductivity must should be 13W m with austenitic stainless steel heat conductivity basic simlarity-1·K-1
Left and right.
Mainly due to: according to PS45 coating alloy composition, similar to high Cr stainless steel alloy (the impermeable steel of austenite) composition,
Therefore its heat conductivity is not allow for larger difference.
Assay: using Conduction Coefficient Detector Basing detection, the heat conductivity of result display coating is all at 13.6W m-1·K-1Above, essentially identical with austenitic stainless steel heat conductivity.
Through the above synthesis measuring of the present invention, conclusion is: this coating has excellent high temperature resistant sulfur corrosion performance, and boiler is actual
Under operating condition, about 40 months can be applied.
This water-cooling wall, after the operation of 9 months, during boiler down maintenance, carries out coating thickness measuring and macroscopic examination to it,
There is not crackle and deformation dropping situations in result display coating.The sampling of coating surface adhesion is carried out XRD analysis, shows coating
There is sulfate species in surface, this material is boiler combustion dust stratification and slagging scorification, not high-temperature sulfur corrosion product.Antiseptic effect is transported
Row is good.Follow-up persistently follow the tracks of this coating operational effect, whenever shutdown, carry out coating inspection.
Claims (5)
1. the assay method of a boiler water wall high temperature-proof sulfur corrosion coating performance, it is characterised in that: comprise the following steps:
1) coating raw material is carried out Chemical bath deposition, inspection raw material alloy composition and content；
2) coating thickness measurement, measures layer thickness uniformity；
3) coating is carried out energy spectrum analysis and microstructure morphology inspection, measures microscopic pattern, porosity, thing phase composition；
4) anchoring strength of coating is tested, measure the binding ability of coating and water screen tube；
5) coating thermal shock test, measures the cold-and-heat resistent alternation ability of coating；
6) coating high-temp sulfur corrosion test, measures the combination property of coating high temperature-proof sulfur corrosion；
7) coating heat-transfer character test.
Assay method the most according to claim 1, it is characterised in that: the mensuration of boiler water wall high temperature-proof sulfur corrosion coating
Journey is as follows:
1) raw material Chemical bath deposition: require that in coating material silk material, the mass percent Han Cr reaches more than 40%, and containing Ni
Mass percent reaches more than 50%；
2) coating layer thickness: use magnetic thickness tester detection coating layer thickness, it is desirable to thickness reaches 0.3～0.5mm；
3) coating energy spectrum analysis and microstructure:
Microcosmic appearance is not allow for crackle and penetrance defect；
Porosity≤3%；
Coating must be by Cr2O3The biphase disperse of face-centered cubic solid solution phase with Ni is uniformly distributed；
4) bond strength: the bond strength between coating and water-cooling wall base material bond strength, coating measures and all should be not less than
40MPa；
5) thermal shock performance test: test temperature 600～720 DEG C, is incubated 1.5～2 hours, is cooled to 11～20 DEG C, and so forth
10～15 times；Coating does not falls off, does not ftractures, and is up to standard；
6) high temperature-proof sulfur corrosion performance test: test temperature 600～720 DEG C, the gaseous elemental sulfur of corrosive medium flowing, corrosion
About 10～30 hours time；Coating does not falls off, does not ftractures, and water-cooling wall base material does not produce corrosion, is up to standard；
7) heat-transfer character test: coating heat conductivity must should be not less than 13W m-1·K-1。
Assay method the most according to claim 2, it is characterised in that: coating spraying material selection NiCrTi series spraying material
Material.
Assay method the most according to claim 3, it is characterised in that: coating spraying material is PS45 high temperature anti-sulfur corrosion material
Material.
5. according to the arbitrary described assay method of claim 2-4, it is characterised in that: in step 3), coating is first carried out power spectrum and divides
Analysis, detects rich in Cr, O, Ni element, and thing is analyzed by recycling X-ray diffractometer mutually, and coating is mainly by dark Cr2O3
Phase, the biphase composition of face-centered cubic solid solution phase of light Ni.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610578028.2A CN106018708A (en) | 2016-07-21 | 2016-07-21 | Method for determining performance of high-temperature sulfur corrosion prevention coating of water-cooling wall of boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610578028.2A CN106018708A (en) | 2016-07-21 | 2016-07-21 | Method for determining performance of high-temperature sulfur corrosion prevention coating of water-cooling wall of boiler |
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Family
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289137A (en) * | 2016-07-21 | 2017-01-04 | 南京电力设备质量性能检验中心 | A kind of heating surface tubes in boilers anti-coking coating performance assay method |
| CN109737898A (en) * | 2018-12-28 | 2019-05-10 | 江苏方天电力技术有限公司 | A kind of system for realizing on-line testing water wall high temperature corrosion |
| CN110441476A (en) * | 2019-07-19 | 2019-11-12 | 合肥国轩高科动力能源有限公司 | A kind of method of Fast Evaluation coating uniformity |
| CN112269006A (en) * | 2020-09-30 | 2021-01-26 | 南京钢铁股份有限公司 | Inspection method suitable for hot sprayed aluminum coating on surface of steel plate |
-
2016
- 2016-07-21 CN CN201610578028.2A patent/CN106018708A/en active Pending
Non-Patent Citations (3)
| Title |
|---|
| 廖相巍: "电弧喷涂NiCr合金涂层的研究与应用", 《中国优秀博硕士论文全文数据库（硕士）工程科技I辑B022-40》 * |
| 王群: "燃煤电站锅炉水冷壁管防护涂层系统的开发与研究", 《中国优秀博硕士学位论文数据库（硕士）工程科技II辑C039-33》 * |
| 詹旺滨: "燃煤锅炉管道新型防护涂层系统研究与开发", 《中国优秀博硕士论文全文数据库（硕士）工程科技I辑B022-104》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289137A (en) * | 2016-07-21 | 2017-01-04 | 南京电力设备质量性能检验中心 | A kind of heating surface tubes in boilers anti-coking coating performance assay method |
| CN109737898A (en) * | 2018-12-28 | 2019-05-10 | 江苏方天电力技术有限公司 | A kind of system for realizing on-line testing water wall high temperature corrosion |
| CN109737898B (en) * | 2018-12-28 | 2021-01-26 | 江苏方天电力技术有限公司 | System for realizing online test of high-temperature corrosion of water-cooled wall |
| CN110441476A (en) * | 2019-07-19 | 2019-11-12 | 合肥国轩高科动力能源有限公司 | A kind of method of Fast Evaluation coating uniformity |
| CN112269006A (en) * | 2020-09-30 | 2021-01-26 | 南京钢铁股份有限公司 | Inspection method suitable for hot sprayed aluminum coating on surface of steel plate |
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