CN112191485A - On-site corrosion prevention process method for heating surface of garbage incinerator - Google Patents
On-site corrosion prevention process method for heating surface of garbage incinerator Download PDFInfo
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- CN112191485A CN112191485A CN202011015078.2A CN202011015078A CN112191485A CN 112191485 A CN112191485 A CN 112191485A CN 202011015078 A CN202011015078 A CN 202011015078A CN 112191485 A CN112191485 A CN 112191485A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 10
- 238000005536 corrosion prevention Methods 0.000 title description 4
- 238000005507 spraying Methods 0.000 claims abstract description 27
- 238000005524 ceramic coating Methods 0.000 claims abstract description 25
- 238000005253 cladding Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 22
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 20
- 239000000956 alloy Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 238000000151 deposition Methods 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000003749 cleanliness Effects 0.000 claims abstract description 10
- 230000003746 surface roughness Effects 0.000 claims abstract description 10
- 229910001651 emery Inorganic materials 0.000 claims abstract description 6
- 239000011521 glass Substances 0.000 claims abstract description 6
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000006187 pill Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 15
- 230000008021 deposition Effects 0.000 claims description 6
- 229910001119 inconels 625 Inorganic materials 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 description 22
- 238000005260 corrosion Methods 0.000 description 22
- 239000010410 layer Substances 0.000 description 20
- 150000003839 salts Chemical class 0.000 description 18
- 239000002131 composite material Substances 0.000 description 7
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- 239000002585 base Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
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- 238000009991 scouring Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
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- 229910052783 alkali metal Inorganic materials 0.000 description 2
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
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- 229910052750 molybdenum Inorganic materials 0.000 description 1
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- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- B05D7/22—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 internal surfaces, e.g. of tubes
- B05D7/227—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 internal surfaces, e.g. of tubes of containers, cans or the like
-
- 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
- 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
- B05D3/007—After-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
- B05D3/02—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 baking
- B05D3/0254—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
- C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
Abstract
The invention relates to a field anticorrosion process method for a heating surface of a garbage incinerator, and belongs to the technical field of new material surface engineering. It comprises the following steps: the first step is as follows: purifying to remove oxide scale, rust, dirt and attachments of old coatings on the surface; the second step is that: coarsening, spraying emery, and spraying cleanliness Sa3 grade, wherein the surface roughness reaches Rz25-Rz 50; the third step: depositing in a furnace, and depositing nickel-based alloy wires on the pipe wall; the fourth step: cleaning the surface, spraying glass pills, and ensuring the cleanliness Sa3 grade, wherein the surface roughness reaches Rz12.5-Rz 25; the fifth step: high-pressure airless spraying, namely spraying a layer of nano ceramic slurry on the alloy cladding layer; and a sixth step: curing the nano ceramic slurry for 48 hours at normal temperature; the seventh step: heating to over 300 deg.c and sintering to form the nanometer ceramic coating.
Description
Technical Field
The invention relates to a field anticorrosion process method for a heating surface of a garbage incinerator, and belongs to the technical field of new material surface engineering.
Background
Along with the enlargement of urban scale and the acceleration of urbanization process in China, the generation amount and the accumulation amount of urban garbage are increased year by year, various industrial garbage and urban domestic garbage which are difficult to treat in time form great threat to the living environment of people, and the heat supply and power generation by utilizing the incineration of the urban domestic garbage is one of ideal methods for solving the problem of the urban domestic garbage.
In recent years, along with the development of national economy, the improvement of environmental protection requirements and the reduction of garbage disposal subsidies, the garbage power plants improve the garbage disposal capacity and the generated energy and further improve the working medium operation parameters, so that the corrosion of the heating surface is rapidly intensified, and according to related data, when the temperature rises to a certain critical value, the corrosion speed and the surface temperature of a boiler tube are multiplied in a geometric exponential manner. The garbage contains elements such as chlorine, sulfur, alkali metals and the like, mixed flue gas of chlorine, sulfur and the like generated after combustion and molten salt formed by the mixed flue gas and the alkali metals in fly ash cause chlorine and sulfur corrosion and molten salt corrosion on a heating surface, and meanwhile, microparticles in the flue gas cause serious abrasion on a pipe wall.
The reduction and even pipe explosion of the boiler pipe wall caused by corrosion and abrasion of the garbage incinerator seriously affect the operation of a power plant and the treatment of municipal domestic garbage, and bring great pressure to the environment.
There are several protection methods for the heated surface of the garbage incinerator, and the conventional treatment method at present includes:
1. arc spraying or supersonic arc spraying the wire material, and then sealing;
2. spraying powder material with supersonic flame, and sealing;
3. manual surfacing repair;
4. and brushing various anticorrosive paints.
The methods have certain defects, particularly the resistance to high-temperature molten salt corrosion.
The in-furnace deposition technology is used as an economic and reliable surface engineering technology, is widely applied to the field repair of four pipes of a boiler, and has achieved obvious effects.
The high temperature resistant molten salt corrosion resistant nano ceramic coating is applied to a boiler, particularly has the effect of preventing high temperature molten salt corrosion, is very convenient to construct, and is a great hot point for boiler corrosion prevention in recent years.
The problems of adhesion force, thermal expansion, thermal shock and the like of the nano ceramic coating are solved, a layer of high-temperature-resistant molten salt corrosion nano ceramic slurry is sprayed on the alloy cladding layer, then the nano ceramic slurry is solidified and sintered to construct an ideal composite coating, the composite coating has better protection on the heating surface of the garbage boiler than a single coating, the service life is further prolonged, and the nano ceramic coating is widely applied to the corrosion prevention of the garbage boiler.
Disclosure of Invention
The invention aims to establish a field anticorrosion process method for a heating surface of a garbage incinerator for a garbage incineration power station boiler, and a manufacturing process of a comprehensive protective coating for the heating surface of the garbage incinerator.
In order to achieve the purpose, the technical scheme of the invention comprises the following steps: a field anticorrosion process method for a heating surface of a garbage incinerator comprises the following steps:
the first step is as follows: purifying to remove oxide scale, rust, dirt and attachments of old coatings on the surface;
the second step is that: coarsening, spraying emery, and spraying cleanliness Sa3 grade, wherein the surface roughness reaches Rz25-Rz 50;
the third step: depositing in a furnace, and depositing nickel-based alloy wires on the pipe wall;
the fourth step: cleaning the surface, spraying glass pills, and ensuring the cleanliness Sa3 grade, wherein the surface roughness reaches Rz12.5-Rz 25;
the fifth step: high-pressure airless spraying, namely spraying a layer of nano ceramic slurry on the alloy cladding layer;
and a sixth step: curing the nano ceramic slurry for 48 hours at normal temperature;
the seventh step: heating to over 300 deg.c and sintering to form the nanometer ceramic coating.
Further, in the third step of furnace cladding, the cladding parameters are as follows:
welding wires: INCOLOY825 material, INCONEL625 material, INCONEL622 material, INCONEL686 material and the like;
gas: CO 2;
welding parameters are as follows: welding current: 200-250A; welding voltage: 20-25V; the descending speed is 6-10 mm/s.
Furthermore, the deposition thickness in the third step is in the range of 1.5-2.0 mm.
Further, the alloy cladding layer operates at a temperature below 600 ℃.
Furthermore, the thickness of the dry film of the cured nano ceramic slurry in the sixth step is 65-100 μm.
Furthermore, the working temperature of the nano ceramic coating in the seventh step is 800-1000 ℃.
Further, in the seventh step, the nano ceramic coating starts to be sintered at 300 ℃ and is sintered into a fully compact coating at 800 ℃.
Compared with the prior art, the invention has the following advantages:
(1) the alloy cladding layer and the matrix form interactive fusion and interactive crystallization, and the alloy cladding layer belongs to metallurgical bonding and increases the thickness of the pipe wall.
(2) The utilization rate of deposited wire materials is high and can reach more than 90%.
(3) The heat input amount is small, only the surface layer of the matrix is melted, the dilution rate is low, and the melting depth is adjustable.
(4) The alloy cladding layer contains nickel, chromium, molybdenum and niobium, so that the high-temperature oxidation resistance can be improved, and the corrosion of the mixed flue gas containing chlorine and sulfur to the heating surface of the boiler can be inhibited.
(5) The high temperature resistant molten salt corrosion resistant nano ceramic coating has excellent molten salt corrosion resistance.
(6) The abrasion resistance of the high temperature molten salt corrosion resistant nano ceramic coating is far better than that of a G20 matrix material.
(7) The thermal expansion coefficient of the high temperature resistant molten salt corrosion nano ceramic coating can be adjusted correspondingly according to the thermal expansion coefficient of the base material, and the coating has good adhesive force and good thermal shock resistance.
(8) The alloy cladding layer and the nano ceramic coating are selected to construct the composite coating, and the wear-resisting and corrosion-resisting functions of the composite coating are obviously enhanced compared with those of a single coating.
(9) The process is simple, automatic green remanufacturing can be realized in the furnace, and the method can be popularized in a large area.
Drawings
FIG. 1 is a schematic cross-sectional view of a waterwall according to an embodiment of the present invention;
in the figure: 1-a substrate; 2-alloy cladding layer; 3-high temperature resistant molten salt corrosion nano ceramic coating.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to fig. 1 in the embodiment of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
A field anticorrosion process method for a heating surface of a garbage incinerator comprises the following steps:
the first step is as follows: purifying to remove oxide scale, rust, dirt and attachments of old coatings on the surface;
the second step is that: coarsening, spraying emery, and spraying cleanliness Sa3 grade, wherein the surface roughness reaches Rz25-Rz 50;
the third step: depositing in a furnace, and depositing nickel-based alloy wires on the pipe wall;
the fourth step: cleaning the surface, spraying glass pills, and ensuring the cleanliness Sa3 grade, wherein the surface roughness reaches Rz12.5-Rz 25;
the fifth step: high-pressure airless spraying, namely spraying a layer of nano ceramic slurry on the alloy cladding layer;
and a sixth step: curing the nano ceramic slurry for 48 hours at normal temperature;
the seventh step: heating to over 300 deg.c and sintering to form the nanometer ceramic coating.
Further, in the third step of furnace cladding, the cladding parameters are as follows:
welding wires: INCOLOY825 material, INCONEL625 material, INCONEL622 material, INCONEL686 material and the like;
gas: CO 2;
welding parameters are as follows: welding current: 200-250A; welding voltage: 20-25V; the descending speed is 6-10 mm/s.
Furthermore, the deposition thickness in the third step is in the range of 1.5-2.0 mm.
Further, the alloy cladding layer operates at a temperature below 600 ℃.
Furthermore, the thickness of the dry film of the cured nano ceramic slurry in the sixth step is 65-100 μm.
Furthermore, the working temperature of the nano ceramic coating in the seventh step is 800-1000 ℃.
Further, in the seventh step, the nano ceramic coating starts to be sintered at 300 ℃ and is sintered into a fully compact coating at 800 ℃.
FIG. 1 is a schematic cross-sectional structure diagram of a composite coating water-cooled wall constructed by a substrate 1, an alloy cladding layer 2 and a high-temperature molten salt corrosion resistant nano ceramic coating 3 according to an embodiment of the invention.
Test example 1:
the experimental data of the test example show that the performance of the composite coating is superior to that of the existing anticorrosion and wear-resistant coating technology under the environments of high-temperature molten salt corrosion and high-temperature scouring. The method comprises the following specific steps:
the base material is a G20 plate, emery is sprayed, the surface of the base material is bright, then deposition is carried out, an INCONEL622 welding wire is selected, a loose FR2 welding machine is adopted, the welding current is 240A, the welding voltage is 23V, vertical welding is carried out, and the descending speed is 8 mm/s. And (4) performing nondestructive detection on the thickness of the overlaying layer after welding by 1.8-2.0 mm. Wire-electrode cutting processing of the sample: the specification of a thermal shock sample is 40 multiplied by 6; the specification of the high-temperature scouring sample is 57 multiplied by 26 multiplied by 6; molten salt corrosion test: 150X 75X 10.
And (3) spraying glass shots on the deposited surface, wherein the surface cleanliness Sa3 and the surface roughness Rz25-50 are achieved. And (3) high-pressure airless spraying of the nano ceramic coating, and detection of the thickness of a dry film between 65 and 80 microns. And forming a ceramic coating on the alloy cladding layer through high-temperature sintering.
It can be seen from this that: the nano ceramic coating has good adhesion with the cladding layer, is compact and wear-resistant, and shows good wear resistance and high-temperature molten salt corrosion resistance in a certain temperature range, and can be used for measuring tension at normal temperature and thermal shock at high temperature.
Test example 2:
the experimental data of the test example show that the performance of the composite coating is superior to that of the existing anticorrosion and wear-resistant coating technology under the environments of high-temperature molten salt corrosion and high-temperature scouring. The method comprises the following specific steps:
the base material is a G20 plate, emery is sprayed, the surface of the base material is bright, then deposition is carried out, an INCONEL686 welding wire is selected, an FR2 welding machine is loosened, the welding current is 240A, the welding voltage is 23V, vertical welding is carried out, and the descending speed is 8 mm/s. And (4) performing nondestructive detection on the thickness of the overlaying layer after welding by 1.8-2.0 mm. Wire-electrode cutting processing of the sample: the specification of a thermal shock sample is 40 multiplied by 6; the specification of the high-temperature scouring sample is 57 multiplied by 26 multiplied by 6; molten salt corrosion test: 150X 75X 10.
And (3) spraying glass shots on the deposited surface, wherein the surface cleanliness Sa3 and the surface roughness Rz25-50 are achieved. And (3) high-pressure airless spraying of the nano ceramic coating, and detection of the thickness of a dry film between 65 and 80 microns. And forming a ceramic coating on the alloy cladding layer through high-temperature sintering.
It can be seen that: it can be seen from this that: the nano ceramic coating has good adhesion with the cladding layer, is compact and wear-resistant, and shows good wear resistance and high-temperature molten salt corrosion resistance in a certain temperature range, and can be used for measuring tension at normal temperature and thermal shock at high temperature.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (7)
1. A field anticorrosion process method for a heating surface of a garbage incinerator is characterized by comprising the following steps: it comprises the following steps:
the first step is as follows: purifying to remove oxide scale, rust, dirt and attachments of old coatings on the surface;
the second step is that: coarsening, spraying emery, and spraying cleanliness Sa3 grade, wherein the surface roughness reaches Rz25-Rz 50;
the third step: depositing in a furnace, and depositing nickel-based alloy wires on the pipe wall;
the fourth step: cleaning the surface, spraying glass pills, and ensuring the cleanliness Sa3 grade, wherein the surface roughness reaches Rz12.5-Rz 25;
the fifth step: high-pressure airless spraying, namely spraying a layer of nano ceramic slurry on the alloy cladding layer;
and a sixth step: curing the nano ceramic slurry for 48 hours at normal temperature;
the seventh step: heating to over 300 deg.c and sintering to form the nanometer ceramic coating.
2. The on-site anticorrosion technological method for the heating surface of the garbage incinerator according to claim 1, characterized in that:
in the third step of furnace cladding, the cladding parameters are as follows:
welding wires: INCOLOY825 material, INCONEL625 material, INCONEL622 material, INCONEL686 material and the like;
gas: CO 2;
welding parameters are as follows: welding current: 200-250A; welding voltage: 20-25V; the descending speed is 6-10 mm/s.
3. The on-site anticorrosion technological method for the heating surface of the garbage incinerator according to claim 1, characterized in that: in the third step, the deposition thickness is in the range of 1.5-2.0 mm.
4. The on-site anticorrosion technological method for the heating surface of the garbage incinerator according to claim 1, characterized in that: the alloy cladding layer operates at temperatures below 600 ℃.
5. The on-site anticorrosion technological method for the heating surface of the garbage incinerator according to claim 1, characterized in that: in the sixth step, the thickness of the dry film after the nano ceramic slurry is solidified is 65-100 mu m.
6. The on-site anticorrosion technological method for the heating surface of the garbage incinerator according to claim 1, characterized in that: in the seventh step, the working temperature of the nano ceramic coating is 800-1000 ℃.
7. The on-site anticorrosion technological method for the heating surface of the garbage incinerator according to claim 1, characterized in that: in the seventh step, the nano ceramic coating starts to be sintered at 300 ℃ and becomes a fully compact coating after being sintered to 800 ℃.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369639A (en) * | 2021-06-30 | 2021-09-10 | 江西恒大高新技术股份有限公司 | Preparation method of ultrathin ultralow-dilution-rate high-temperature alloy cladding layer for garbage incinerator |
| CN115229307A (en) * | 2022-07-29 | 2022-10-25 | 哈尔滨科能熔敷科技股份有限公司 | Water wall tube surface corrosion prevention method |
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| CN111334797A (en) * | 2020-03-09 | 2020-06-26 | 西安交通大学 | High-chemical-adsorption interface thermal barrier coating bonding layer material and preparation method thereof |
| CN111363998A (en) * | 2020-04-08 | 2020-07-03 | 承德石油高等专科学校 | Preparation method of porous metal-ceramic nano composite thermal barrier coating |
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| CN110607527A (en) * | 2018-05-28 | 2019-12-24 | 山东鼎立环保新材料科技有限公司 | Anti-corrosion boiler pipe and preparation method thereof |
| CN110819929A (en) * | 2019-09-12 | 2020-02-21 | 常熟浦发第二热电能源有限公司 | Spraying material for heating surface of boiler tube of garbage incinerator and construction process of spraying material |
| CN111334797A (en) * | 2020-03-09 | 2020-06-26 | 西安交通大学 | High-chemical-adsorption interface thermal barrier coating bonding layer material and preparation method thereof |
| CN111363998A (en) * | 2020-04-08 | 2020-07-03 | 承德石油高等专科学校 | Preparation method of porous metal-ceramic nano composite thermal barrier coating |
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| CN113369639A (en) * | 2021-06-30 | 2021-09-10 | 江西恒大高新技术股份有限公司 | Preparation method of ultrathin ultralow-dilution-rate high-temperature alloy cladding layer for garbage incinerator |
| CN115229307A (en) * | 2022-07-29 | 2022-10-25 | 哈尔滨科能熔敷科技股份有限公司 | Water wall tube surface corrosion prevention method |
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Application publication date: 20210108 |