CN109023208A - Process for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface - Google Patents
Process for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface Download PDFInfo
- Publication number
- CN109023208A CN109023208A CN201810946446.1A CN201810946446A CN109023208A CN 109023208 A CN109023208 A CN 109023208A CN 201810946446 A CN201810946446 A CN 201810946446A CN 109023208 A CN109023208 A CN 109023208A
- Authority
- CN
- China
- Prior art keywords
- nickel
- resistant coating
- erosion resistant
- corrosion
- base alloy
- 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
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/123—Spraying molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
Abstract
The present invention relates to a kind of processes for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface, belong to new material Surface Engineering field, wherein component A is the pre- film layer that nickel base powder uses the preparation of metal spraying technique, is sprayed on the matrix surface by blasting treatment when executing technique first；B component is the dedicated Ni-based anti-corrosion welding wire of refuse furnace, the anti-corrosion overlay cladding prepared by cooling pulse gas shielded arc welding, the directly built-up welding in pre- film layer when executing technique, and welding pool go directly matrix, and built-up welding nickel-base alloy erosion resistant coating is collectively formed with component B in pre- film layer；Final nickel-base alloy erosion resistant coating thickness 2.0mm or less.This ultra-thin composite overlaying layer and matrix realize metallurgical bonding, and intensity is high, and dilution rate is low, and surface layer iron content can be lower than 7%, possess good high-temperature oxidation resistant, anti-pitting corrosion；Smaller to substrate damage, thermal deformation is small, and thermal stress is low, and alloy erosion resistant coating internal grain is tiny, there is good anti intercrystalline corrosion ability.
Description
Technical field
The present invention relates to a kind of processes for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface, belong to green wood
Expect Surface Engineering field, and in particular to a kind of composite anti-corrosive on waste incinerator heating surface (such as: water-cooling wall, superheater tube)
Technique.
Background technique
The waste heat boiler heating surface etching problem of garbage incinerating power plant is a common problem, especially first passage
Corrode very serious.Its corrosion mechanism is mainly that Cl, S chemical combination gas are formed after burning containing elements such as Na, Ca, Cl, S in rubbish
Body corrosion and low melting point salt molten corrosive.Waste heat boiler etching problem is solved, there are mainly two types of approach at present.First is that using pouring
It builds material and pours preserving method along inboard wall of burner hearth, it is more universal at home.Second is that in the alloy of burner hearth cladding resistance to high temperature corrosion, this
Kind method is extremely widespread in foreign countries, especially American-European countries, and the technique of built-up welding erosion resistant coating has generally been completed in design-build.
The heat exchange efficiency of boiler furnace can be effectively ensured compared with castable anti-corrosion in built-up welding improved corrosion alloy anti-corrosion, and controls flue gas
Temperature protects rear portion flue, reduces the high temperature corrosion of superheater, while boiler capacity is larger in design allowed band, defeated
Power is higher out.
And the greatest problem that protection faces is carried out using surface overlaying resistance to high temperature corrosion alloy at present and is how controlling
Dilution rate (characterizing with Fe content in overlay cladding) is reduced under the premise of overlay cladding thickness, and layer dilution rate directly affects heap
Layer corrosion resistance.When overlay cladding is partially thick, dilution rate is low, but easy damaged matrix, thermal stress are high, thermal deformation is big, while built-up welding
Resistance to high temperature corrosion nickel-base alloy price is high, and very big cost is caused to waste；If overlay cladding is thin, iron content will be higher,
High-temperature corrosion-resistance performance is remarkably decreased, and service life is greatly reduced.
Summary of the invention
For the present invention in order to overcome drawbacks described above, it is ultra-thin Ni-based for waste incinerator heating surface that its purpose is to provide one kind
The process of alloy erosion resistant coating.
The present invention to achieve the goals above, adopts the following technical scheme that
A kind of process for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface, the process include A, B two
Kind material is prepared by corresponding technique and is used for the composite anti-corrosive body of the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface
System；
Wherein component A is nickel base powder, the pre- film layer prepared using metal spraying technique, thickness 0.1-0.5mm；B component is rubbish
The erosion resistant coating that the Ni-based anti-corrosion welding wire of rubbish furnace is prepared by cooling pulse gas shielded arc welding has fused pre- film layer, final alloy anti-corrosion
Thickness degree 2.0mm or less.
Further, the pre- film layer that composite alloy corrosion protective covering uses is prepared for nickel base powder using metal spraying technique
It forming, pre- film layer main component is nickel and chromium, when thickness is within the scope of 0.1-0.5mm, there is high bond strength with substrate, and
It is readily formed stable nickel-base alloy layer when the B component built-up welding of surface, while being thinned matrix pool depth, reduces surface
The iron content of alloy erosion resistant coating improves the resistance to corrosion under hot environment.
Further, compound nickel-base alloy corrosion protective covering, the erosion resistant coating used are logical with Ni-based anti-corrosion welding wire for refuse furnace
Pulse gas-shielded weldering is subcooled to be prepared, has fused pre- film layer, layer main component is nickel, chromium and molybdenum, and thickness is in 1.0-2.0
mm。
Further, the nickel base powder ingredient is nickel, chromium, iron；
Further, the Ni-based anti-corrosion component of weld wire is nickel, chromium, molybdenum and niobium or nickel, chromium, molybdenum, tungsten, cobalt and iron.
Further, the protection gas that the pulse gas-shielded weldering uses is carbon dioxide, argon gas or helium.
Further, it is Inconel622 or Inconel625 that B component, which is the Ni-based anti-corrosion welding wire material of refuse furnace,.
Further, substrate is No. 20 boiler steels.
Beneficial effects of the present invention:
This ultra-thin composite overlaying layer of the present invention and matrix realize metallurgical bonding, and intensity is high, and dilution rate is low, and surface layer iron content can be low
In 7%, possess good high-temperature oxidation resistant, anti-pitting corrosion；Simultaneously because weld deposit process heat is defeated using cooling pulse Welding
Enter less, smaller to substrate damage, thermal deformation is small, and thermal stress is low, and alloy erosion resistant coating internal grain is tiny, has good anti-intergranular rotten
Erosion ability.
Important technology index needed for the present invention is directed to waste incinerator heating surface anti-corrosion: metallurgical bonding, dilution rate are realized
(Fe content), corrosion resistance test (salt spray test).Protective layer integral thickness is controlled in 1.0-2.0mm, is metallurgical junction with substrate
It closes, bond strength is high, and dilution rate is low (Fe content < 7%), standard salt fog test 1200h non-corroding.
Specific embodiment
Below in conjunction with example, the present invention is described further:
Example one
Pre- thicknesses of layers: 0.1mm, ingredient nickel, chromium, iron；
Erosion resistant coating thickness: 2.0 mm, ingredient nickel, chromium, molybdenum, niobium；
Dilution rate (Fe%): 4.35%；
A kind of process for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface, the process include A, B two
Kind material is prepared by corresponding technique and is used for the composite anti-corrosive body of the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface
System；
Wherein component A is nickel base powder, the pre- film layer prepared using metal spraying technique, thickness 0.1；B component is refuse furnace
The erosion resistant coating that Ni-based anti-corrosion welding wire is prepared by cooling pulse gas shielded arc welding has fused pre- film layer, final alloy erosion resistant coating thickness
2.0mm。
Further, the pre- film layer that composite alloy corrosion protective covering uses is prepared for nickel base powder using metal spraying technique
It forms, pre- film layer main component is nickel and chromium, and thickness has high bond strength and surface B component heap at 0.1, with substrate
It is readily formed stable nickel-base alloy layer when weldering, while being thinned matrix pool depth, reduces surface alloy erosion resistant coating
Iron content, improve the resistance to corrosion under hot environment.
Further, compound nickel-base alloy corrosion protective covering, the erosion resistant coating used are logical with Ni-based anti-corrosion welding wire for refuse furnace
Pulse gas-shielded weldering is subcooled to be prepared, has fused pre- film layer, layer main component is nickel, chromium and molybdenum, and thickness is in 1.0-2.0
mm。
Further, the nickel base powder ingredient is nickel, chromium, iron；
Further, the Ni-based anti-corrosion component of weld wire is nickel, chromium, molybdenum and niobium.Further, the pulse air
The protection gas that body protection weldering uses is carbon dioxide, argon gas or helium.
Further, it is Inconel622 or Inconel625 that B component, which is the Ni-based anti-corrosion welding wire material of refuse furnace,.
Further, substrate is No. 20 boiler steels.
Example two
Pre- thicknesses of layers: 0.4 mm, ingredient nickel, chromium, iron；
Erosion resistant coating thickness, 1.5mm, ingredient nickel, chromium, molybdenum, tungsten, cobalt, iron；
Dilution rate (Fe%): 5.44%；
The process includes that two kinds of materials of A, B are prepared and to be used for waste incinerator heating surface ultra-thin Ni-based by corresponding technique
The composite anti-corrosive system of alloy erosion resistant coating；
Wherein component A is nickel base powder, the pre- film layer prepared using metal spraying technique, thickness 0.4mm；B component is refuse furnace
The erosion resistant coating that is prepared by cooling pulse gas shielded arc welding of Ni-based anti-corrosion welding wire, fused pre- film layer, final alloy anti-corrosion thickness
Spend 1.5mm.
Further, the pre- film layer that composite alloy corrosion protective covering uses is prepared for nickel base powder using metal spraying technique
It forms, pre- film layer main component is nickel and chromium, when thickness is within the scope of 0.4mm, has high bond strength and surface with substrate
It is readily formed stable nickel-base alloy layer when B component built-up welding, while being thinned matrix pool depth, reduces surface alloy
The iron content of erosion resistant coating improves the resistance to corrosion under hot environment.
Further, compound nickel-base alloy corrosion protective covering, the erosion resistant coating used are logical with Ni-based anti-corrosion welding wire for refuse furnace
Pulse gas-shielded weldering is subcooled to be prepared, has fused pre- film layer, layer main component is nickel, chromium and molybdenum, and thickness is in 1.0-2.0
mm。
Further, the nickel base powder ingredient is nickel, chromium, iron；
Further, the Ni-based anti-corrosion component of weld wire is nickel, chromium, molybdenum, tungsten, cobalt and iron.
Further, the protection gas that the pulse gas-shielded weldering uses is carbon dioxide, argon gas or helium.
Further, it is Inconel622 or Inconel625 that B component, which is the Ni-based anti-corrosion welding wire material of refuse furnace,.
Further, substrate is No. 20 boiler steels.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of process for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface, it is characterised in that: the technique
Method includes that two kinds of materials of A, B are prepared by corresponding technique and are used for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface
Composite anti-corrosive system；
Wherein component A is nickel base powder, the pre- film layer prepared using metal spraying technique, thickness 0.1-0.5mm；B component is rubbish
The erosion resistant coating that the Ni-based anti-corrosion welding wire of rubbish furnace is prepared by cooling pulse gas shielded arc welding has fused pre- film layer, final alloy anti-corrosion
Thickness degree 2.0mm or less.
2. the process according to claim 1 for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface,
Be characterized in that: the pre- film layer that composite alloy corrosion protective covering uses is prepared for nickel base powder using metal spraying technique, in advance
Film layer main component is nickel and chromium, when thickness is within the scope of 0.1-0.5mm, has high bond strength and surface B group with substrate
Stacking is readily formed stable nickel-base alloy layer when welding, while being thinned matrix pool depth, and it is anti-to reduce surface alloy
The iron content of rotten layer improves the resistance to corrosion under hot environment.
3. the process according to claim 1 for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface,
Be characterized in that: compound nickel-base alloy corrosion protective covering, the erosion resistant coating used pass through cooling pulse for the Ni-based anti-corrosion welding wire of refuse furnace
Gas shielded arc welding is prepared, and has fused pre- film layer, and layer main component is nickel, chromium and molybdenum, and thickness is in 1.0-2.0 mm.
4. the process according to claim 1 for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface,
Be characterized in that: the nickel base powder ingredient is nickel, chromium, iron.
5. the process according to claim 1 for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface,
Be characterized in that: the Ni-based anti-corrosion component of weld wire is nickel, chromium, molybdenum and niobium or nickel, chromium, molybdenum, tungsten, cobalt and iron.
6. the process according to claim 3 for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface,
Be characterized in that: the protection gas that the pulse gas-shielded weldering uses is carbon dioxide, argon gas or helium.
7. the process according to claim 1 for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface,
Be characterized in that: B component is that the Ni-based anti-corrosion welding wire material of refuse furnace is Inconel622 or Inconel625.
8. the process according to claim 2 for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface,
Be characterized in that: substrate is No. 20 boiler steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946446.1A CN109023208A (en) | 2018-08-20 | 2018-08-20 | Process for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946446.1A CN109023208A (en) | 2018-08-20 | 2018-08-20 | Process for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109023208A true CN109023208A (en) | 2018-12-18 |
Family
ID=64631342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810946446.1A Pending CN109023208A (en) | 2018-08-20 | 2018-08-20 | Process for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109023208A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111155088A (en) * | 2020-01-15 | 2020-05-15 | 江苏科环新材料有限公司 | Method for remanufacturing water-cooled wall of waste incineration power generation boiler |
| CN113007737A (en) * | 2021-03-02 | 2021-06-22 | 华北电力大学 | Waste heat boiler water wall tube bank recycling technology for garbage power station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334205A (en) * | 1995-06-07 | 1996-12-17 | Kubota Corp | Waste-heat boiler tube excellent in anticorrosion |
| CN101109026A (en) * | 2007-08-20 | 2008-01-23 | 沈阳大陆激光成套设备有限公司 | Laser fusion welding method of abrasion-proof heat-proof composite coating on surface of tuyeres of blast furnace port sleeve |
| CN102586714A (en) * | 2012-03-22 | 2012-07-18 | 江西恒大高新技术股份有限公司 | Electric arc spraying process of chloride corrosion preventing alloy coating of garbage incinerator heating surface |
| CN103658951A (en) * | 2013-12-27 | 2014-03-26 | 上海繁威能源工程有限公司 | Boiler four pipe smoke corrosion spray welding protection method |
| CN104999165A (en) * | 2015-08-25 | 2015-10-28 | 江门市博盈焊接工程有限公司 | Vertical down surfacing welding method capable of realizing aesthetic welding joint and low dilution rate |
-
2018
- 2018-08-20 CN CN201810946446.1A patent/CN109023208A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334205A (en) * | 1995-06-07 | 1996-12-17 | Kubota Corp | Waste-heat boiler tube excellent in anticorrosion |
| CN101109026A (en) * | 2007-08-20 | 2008-01-23 | 沈阳大陆激光成套设备有限公司 | Laser fusion welding method of abrasion-proof heat-proof composite coating on surface of tuyeres of blast furnace port sleeve |
| CN102586714A (en) * | 2012-03-22 | 2012-07-18 | 江西恒大高新技术股份有限公司 | Electric arc spraying process of chloride corrosion preventing alloy coating of garbage incinerator heating surface |
| CN103658951A (en) * | 2013-12-27 | 2014-03-26 | 上海繁威能源工程有限公司 | Boiler four pipe smoke corrosion spray welding protection method |
| CN104999165A (en) * | 2015-08-25 | 2015-10-28 | 江门市博盈焊接工程有限公司 | Vertical down surfacing welding method capable of realizing aesthetic welding joint and low dilution rate |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111155088A (en) * | 2020-01-15 | 2020-05-15 | 江苏科环新材料有限公司 | Method for remanufacturing water-cooled wall of waste incineration power generation boiler |
| CN111155088B (en) * | 2020-01-15 | 2022-05-27 | 江苏科环新材料有限公司 | Method for remanufacturing water-cooled wall of waste incineration power generation boiler |
| CN113007737A (en) * | 2021-03-02 | 2021-06-22 | 华北电力大学 | Waste heat boiler water wall tube bank recycling technology for garbage power station |
| CN113007737B (en) * | 2021-03-02 | 2022-10-18 | 华北电力大学 | Waste heat boiler water wall tube bank recycling technology for garbage power station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109023208A (en) | Process for the ultra-thin nickel-base alloy erosion resistant coating of waste incinerator heating surface | |
| CN110541137B (en) | Method for preparing composite coating of waste incineration power generation boiler tube by integrating induction remelting and injection | |
| CN102021558B (en) | Alloy powder for circulating fluidized bed boiler water wall tube laser cladded coating | |
| US20120214017A1 (en) | Weld Overlay Structure and a Method of Providing a Weld Overlay Structure | |
| CN112518092B (en) | Composite protection process for fire grate segment based on plasma surfacing and laser cladding technology | |
| JP5327073B2 (en) | Copper member and method for preventing corrosion of copper member | |
| CN112376046A (en) | Self-melting alloy composite material for water-cooled wall high-frequency cladding coating and preparation of coating thereof | |
| CN110424006A (en) | A kind of technique preparing coating for metal surfaces using ion melting and coating technique | |
| CN104384749A (en) | Corrosion-resistance nickel-based alloy powder for use in plasma spray welding | |
| CN111876717B (en) | High-temperature-resistant, abrasion-resistant and remelting nickel-based composite material coating for fire grate segment of garbage incinerator and preparation method thereof | |
| WO2016009903A1 (en) | Single submerged arc welding method for high chromium csef steel | |
| CN112048642A (en) | High-temperature chlorine corrosion resistant alloy material and application method thereof | |
| JP3222307B2 (en) | Alloy and multi-layer steel pipe having corrosion resistance in an environment in which a fuel containing V, Na, S, Cl is burned | |
| CN104942525B (en) | Ultra-large copper nut remanufacturing technology | |
| US5190832A (en) | Alloy and composite steel tube with corrosion resistance in combustion environment where v, na, s and cl are present | |
| CN108067762A (en) | Ultralow temperature steel welding wire | |
| JPH05263194A (en) | Wear resistant double-layered steel tube for boiler and its manufacture | |
| CN103469199A (en) | Laser cladding manufacturing technology of high-performance steam turbine boiler tubes | |
| JP4827047B2 (en) | Steel structure with corrosion resistance, wear resistance and heat crack resistance | |
| US20010037877A1 (en) | Device and method for cooling fume intakes | |
| JP2005314721A (en) | Water-cooling type steel-made tubular structure having excellent high-temperature corrosion resistance, high-temperature wear resistance, moisture condensation corrosion resistance, and film peeling resistance, and method for manufacturing the same | |
| CN113667977B (en) | Heat dissipation composite protection structural layer of garbage power station pipeline and preparation process | |
| US20230084075A1 (en) | Use of a nickel-chromium-iron alloy | |
| JP2004518822A (en) | Structural components for boiler area of power plant or waste incineration plant | |
| JPH07138727A (en) | Method for coating of wear resistant film |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |