CN104878344A - Novel spraying technology for corrosion prevention and abrasion prevention of boiler - Google Patents
Novel spraying technology for corrosion prevention and abrasion prevention of boiler Download PDFInfo
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- CN104878344A CN104878344A CN201510266713.7A CN201510266713A CN104878344A CN 104878344 A CN104878344 A CN 104878344A CN 201510266713 A CN201510266713 A CN 201510266713A CN 104878344 A CN104878344 A CN 104878344A
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Abstract
The invention belongs to the technical field of corrosion prevention and abrasion prevention of boilers, and provides a novel spraying technology for corrosion prevention and abrasion prevention of a boiler, so as to solve the problem in the prior art that the surface of the internal water wall of a boiler is easy to corrode. The novel spraying technology comprises the following steps: adopting supersonic arc spraying, and using an iron-based self-adhesion alloy wire for carrying out bottom spraying with the thickness of not smaller than 0.05 mm; then, using an LX88A ultrahard abrasion-resistant alloy wire or a 45CT Ni-Cr-Ti alloy wire as an anti-abrasion spraying material for carrying out spraying with the coating thickness of 0.5-0.6 mm; using an LG-3 type high-temperature abrasion-resistant anti-corrosion special hole-sealing agent to perform hole-sealing on the surface of the thermal spraying coating of the metal, so as to enable the whole coating to be more compact and further achieve the effect of sealing capillary pores. According to the invention, the working efficiency is high, materials are saved, no pollution is realized, and the energy consumption is low; the operation of the technology is convenient, the problem that the possibility of corrosion of the boiler is high during the actual running of the boiler can be effectively solved, and the boiler maintenance cost is reduced; a coating formed by the technology is corrosion-resistant and has excellent abrasion resistance, stability, corrosion resistance and stress cracking resistance, and the corrosion prevention time of the coating can be prolonged to be one year or above, so that the fact that service life of the boiler is prolonged by one year or above is ensured.
Description
Technical field
The invention belongs to boiler anti-corrosion Anti-wear Technology field, be specifically related to a kind of boiler anti-corrosion abrasionproof spray technology.
Background technology
Circular fluid bed is due to the feature such as furnace type structure and design variable, the heating surface positions such as its furnace wall cooling, operation condition condition is very severe, suffer high-speed and high-temperature high density containing bed material, the strong uneven erosive wear of fuel flue gas and corrosion for a long time, especially in combustion chamber, do not fire the regional area existence such as band water wall surface cause the eddying effect of heavy wear and cut effect etc., wall erosion is seriously thinning, very easily causes leakage and booster.
Because its coal-fired sulphur content is large, sootblower region water wall, burner region water wall, low mistake, height again, economizer, Bao Qiang, the region local heating face such as to exceed and suffer high temperature, sulfur corrosion and dust granule wearing and tearing especially severe, the booster brought thus, replace tubes are serious, suffer heavy losses.Simultaneously, the a large amount of ashes produced during coal combustion, in the complicated dynamic process of boiler internal burning, clash water wall, serious cutting is produced to water wall working face, makes water wall tube working face be worn down to chain-wales in various degree, cause the reality of water wall wall thickness thinning, easily cause water wall tube at high temperature insufficient strength and booster, its damaging effect is equally serious with high temperature corrosion.In boiler running process, furnace temperature can up to thousands of degree, and due to the existence of sulphur in coal combustion and other detrimental impurity, water wall generally suffers high temperature corrosion.The hazardous material participating in high temperature corrosion has the SO produced in combustion processes
2, SO
3, H
2s, HC1, an alkali metal salt and vanadic salts class are the number of chemical thing common Dynamic Corrosion processes to the complexity that tube wall carries out at various temperatures.Wherein, sulfide is the principal element of high-temperature corrosion in boiler, and one is the corrosion that hydrogen sulfide in flue gas and tube wall metal effect produce, and sulfur-bearing thing produces monatomic sulphur under metallic high temperature, and sulphur and ducted iron react and generates iron sulphide (Fe+S → FeS); Two is under high temperature action, generate vitriol by non-combustible sulfur to be mixed into ash content deposition in tube wall surface, but the various good high-temperature mechanical property no longer had required by water wall tube, in fact the thinning of the useful wall thickness of water wall tube is caused, thus its effective supporting capacity constantly declines, and forms corrosion thus.In addition, high-temperature flue gas wraps up in the velocity shock tube wall that can be greater than 8 meter per seconds, and hocket in the corrosion of flue gas and the metallic surface that is flushed in of ash particles, cause trommel.
Secondly the thermal etching of high temperature oxidation and vitriol and sulphur, sulfide is also vulnerable to.Water wall tube has possessed high temperature oxidation and high temperature corrosion condition, and its flue-gas temperature is high, and is oxygen-enriched combusting, facts have proved, more than 300 DEG C, pipe appearance high temperature often raises 50 DEG C, and corrosion speed increases by 1 times.First there is high temperature oxidation, Surface Creation Fe in boiler heating surface tube surface in operational process
2o
3, the Na secondly in fuel ash
2o and K
2sO in O and flue gas
3chemical combination generates vitriol, and it catches flying dust and forms slagging scorification and sulphur slag, now SO in flue gas
3with M
2sO
4with the Fe on tube wall
2o
3reaction generates complex vitriolate MFe (SO
4)
2or M
3fe (SO
4)
3, this complex vitriolate is decomposed into again loose shape ferric oxide and vitriol settled layer by high temperature, is easily taken away by the erosion of flying dust air-flow, and oxidation corrosion continues to carry out to tube wall depth; Sulfur in fuel in addition, generates S and HS through burning and also produces strong corrosion to tube wall, react generate FeS with Fe.
Under above-mentioned multiple factors acting in conjunction, these heating surface positions are constantly washed from outside to inside, wear and tear and are oxidized, corrode, and make it thinning gradually, when local do not bear pipe in vapour pressure time and cause quick-fried leakage and lose.
Summary of the invention
The present invention, in order to solve the problem that in the boiler that exists in prior art, water wall surface is easily corroded, provides a kind of boiler anti-corrosion abrasionproof spraying method.
The present invention is realized by following technical scheme: a kind of boiler anti-corrosion abrasionproof spray technology, and concrete operation step is as follows:
(1) prepare before spraying: set up scaffolding as required, remove the foreign material on heating surface, to tube wall spraying position quality inspection, site operation equipment is in place, electrical wiring, and source gas line connects, and abrasive reclaiming canvas is laid;
(2) sprayed surface pre-treatment: carry out according to " thermal spray metal part surface preparation general rule ", to non-effective surface namely not sprayed surface adopt masking tape, hardwood plate or rubber hovel to cover protection, and reserved transitional region; Matter heavily fortified point is adopted to have the superfine quartz sand of irregular corner angle or Brown Alundum to carry out surface treatment by national standard, carry out surface second with emergy again to blow sand, adopt TR100 pocket surface roughness tester to detect, then adopt clean kraft paper or plastic film covering protection;
(3) spray: adopt Ultrasonic Arc Sprayed equipment to carry out electric arc spraying according to GB11375-99 " thermospray operational safety ", select the bottoming of iron-based self-adhesion alloy wire to spray, thickness >=0.05 mm; Then adopt LX88A superhard wear alloy wire or 45CT nimonic silk material to spray, coat-thickness is 0.5-0.6mm; Adopt intersecting parallels spraying method, layering, district operation, move again after every 5-6 ㎡ regional area spraying reaches thickness and change to other regions;
(4) use LG-3 type high-temperature wearable special hole sealing agent against corrosion to metal thermal spraying coatingsurface sealing of hole.
Adopt the efficient sand-blast device of pressure type to carry out sandblasting in step (2), utilize on-the-spot source of the gas or provide air compressor machine for oneself, extraction flow>=6m
3/ min, operating pressure 0.55-0.8Mp; Grit blasting operation method is: A. first eliminates rust from bottom to up, rough heating surface is polished smooth smooth after sandblasting immediately; B. remove rust, oxide skin, the coking dirt settling of steel surface with quartz sand, and expose canescence metalluster: sandblasting distance 150 ~ 300mm, the sandblasting angle formed with matrix is 50 ~ 90 °, each sandblasting 5-6 ㎡; C. spray Brown Alundum roughening substrate surface, surface clearness reaches Sa3.0 level; After sandblasting, tube wall surface is dry, and free from dust, without greasy dirt, non-scale, without rust staining and other foreign material, substrate surface presents the metalluster of homogeneous, and degree of cleaning reach Sa3.0 level, and roughness reaches Rz80-120 μm; D. adopt TR100 pocket surface roughness tester to detect pretreated surface after sandblasting, find that there is corrosion or position is underproof again processes, after qualified, with DC-2000B type intelligence ultrasound thickness tester, first time thickness measuring is carried out to tube wall again; In 2 ~ 4 hours, electric arc spraying is carried out after sandblasting completion.
Superfine quartz sand described in step (2) or Brown Alundum use advance row filter, and clay and fine dust content≤5% in sand, without greasy dirt; Quartz sand dryness in the sun before sandblasting, water content≤1%, sand grains used is clean, dry, and sand blasted area is established and gone along with sb. to guard him and other recovery measure, prevents from making moist, drenches with rain, is mixed into impurity in sand, do not pollute surrounding environment.
Spraying equipment described in step (3) is ZPG-500A type Ultrasonic Arc Sprayed Special spray coating power supply and supporting wire feeder; Supersonic electric arc spray gun selected by spray gun, atomized air flow rate >500m/s, velocity of particle >=420m/s, coating porosity≤0.9%; Spraying parameter is: arc voltage: 32 ~ 34V; Flame current: 160 ~ 200A; Atomization air pressure: 0.5-0.8Mpa; Spray distance: 100-150mm; Circulate and carry out in sandblasting and the every 5-6 ㎡ interval of spraying, spraying transition peak width is 100mm, edge-smoothing transition, no concave-convex step.In step (3), the diameter of LX88A superhard wear alloy wire or 45CT nimonic silk material is Φ 2.0mm.
During described spraying operation, interlayer temperature≤80 DEG C; First examination spray on test plate (panel) before spraying, regulating voltage, electric current, wire feed rate, compressed air require, check union and the hose nipple of gas circuit, without gas leak phenomenon.
The present invention adopts LX88A line-material coating boiler, and technological operation is convenient, effectively can solve the problem that boiler easily produces corrosion in actual motion, at high temperature ceramic, makes whole coating finer and close, reaches closed pore effect, working efficiency is high, saving material, pollution-free, less energy-consumption; Reduce Maintenance of Boiler cost.Its coating formed can not cause the damage to heating surface, wear-resisting spray-up is combined with mother metal firmly, bonding surface is smooth, interface transition is steady, and does not occur concavo-convex, without peeling cracking phenomena, anticorrosive, there is excellence wear resistance, stability, corrosion stability, resistance to hard power cracking behavior, its anti-corrosion life can extend to more than 1 year, guarantees more than 1 year prolonged boiler life-span.
Embodiment
A kind of boiler anti-corrosion abrasionproof spray technology, concrete operation step is as follows:
(1) prepare before spraying: set up scaffolding as required, removing the large lump coke, foreign material etc. on heating surface, carry out comprehensive quality inspection to tube wall spraying position, has had ready conditions and has carried out that site operation equipment is in place, electrical wiring in utilization scene, source gas line connects, and abrasive reclaiming canvas is laid;
(2) sprayed surface pre-treatment: carry out according to " thermal spray metal part surface preparation general rule ", adopts the things such as masking tape, hardwood plate or rubber to cover protection to non-effective surface, and reserved transitional region is to ensure that coating edge smoothly transits; Adopt matter heavily fortified point to have the superfine quartz sand of irregular corner angle or Brown Alundum to carry out surface treatment by national standard, superfine quartz sand or Brown Alundum use advance row filter, and clay and fine dust content≤5% in sand, without greasy dirt; Quartz sand dryness in the sun before sandblasting, water content≤1%, and deposit drying, prevents from making moist, drenches with rain, is mixed into impurity in sand; Sand grains used is clean, dry, and sand blasted area is established and gone along with sb. to guard him and other recovery measure, guarantees not pollute surrounding environment, detects after confirmation can carry out sandblasting through quality engineer.Carry out surface second with emergy to blow sand, adopt TR100 pocket surface roughness tester to detect, then adopt clean kraft paper or plastic film to carry out covering protection.
Adopt the efficient sand-blast device of pressure type to carry out sandblasting, utilize on-the-spot source of the gas or provide air compressor machine for oneself, extraction flow>=6m
3/ min, operating pressure 0.55-0.8Mp; Grit blasting operation method is: A. first eliminates rust from bottom to up, rough heating surface is polished smooth smooth after sandblasting immediately; B. remove rust, oxide skin, the coking dirt settling of steel surface with quartz sand, and expose canescence metalluster: sandblasting distance 150 ~ 300mm, the sandblasting angle formed with matrix is 50 ~ 90 °, each sandblasting 5-6 ㎡; C. Brown Alundum roughening substrate surface is sprayed, surface clearness reaches Sa3.0 level, any damage can not be caused to thickness of pipe, by roughness sample block control test, after sandblasting, tube wall surface is dry, and free from dust, without greasy dirt, non-scale, without rust staining and other foreign material, substrate surface presents the metalluster of homogeneous, degree of cleaning reach Sa3.0 level, and roughness reaches Rz80-120 μm; D. pretreated surface should be checked after sandblasting, TR100 pocket surface roughness tester is adopted to detect pretreated surface, find that there is corrosion or position is underproof again processes, after qualified, with DC-2000B type intelligence ultrasound thickness tester, first time thickness measuring is carried out to tube wall again; After sandblasting completion, equipment surface must not make moist, is oxidized and pollutes, and should must carry out electric arc spraying in 2 ~ 4 hours, to keep being sprayed the higher degree of activation in surface.
(3) spray: before spraying, when needing middle stop between surface preparation and spraying process, tackle pretreated effective surface and adopt clean kraft paper or plastic film etc. to carry out covering protection.Adopt Ultrasonic Arc Sprayed to carry out according to GB11375-99 " thermospray operational safety ", select the bottoming of LX73 iron-based self-adhesion alloy wire to spray, thickness >=0.05 ㎜; Then adopt the LX88A superhard wear alloy wire of Φ 2.0mm, 45CT nimonic silk material sprays, coat-thickness is 0.5-0.6mm; Adopt intersecting parallels spraying method, layering, district operation, move again after every 5-6 ㎡ regional area spraying reaches thickness and change to other regions, guarantee the bonding force of sprayed coating and thickness even, prevent drain spray phenomenon; Clean gas circuit: the pressurized air that can obtain dried and clean through freezing type drier and three-stage filtration.
Described spraying equipment is ZPG-500A type Ultrasonic Arc Sprayed Special spray coating power supply and supporting wire feeder; Supersonic electric arc spray gun selected by spray gun, atomized air flow rate >500m/s, velocity of particle >=420m/s, coating porosity≤0.9%; The bonding strength of coating and matrix have also been obtained obvious improvement simultaneously, and spraying parameter is: arc voltage: 32 ~ 34V; Flame current: 160 ~ 200A; Atomization air pressure: 0.5-0.8Mpa; Spray distance: 100-150mm; Circulate and carry out in sandblasting and the every 5-6 ㎡ interval of spraying, spraying transition peak width is 100mm, edge-smoothing transition, no concave-convex step.
(4) after spraying, carry out Coating quality testing, it is qualified that and detect thickness >=0.5-0.6mm judges, can enter next process, otherwise should to fill spray painting to defective position; Then with LG-3 type high-temperature wearable special hole sealing agent against corrosion, sealing of hole is carried out to metal thermal spraying coatingsurface.
Operation notice:
A. blocked job, moves after regional area spraying reaches design thickness again and changes to other regions, and overlapping part is arranged recognizes mark; During operation, interlayer temperature must not higher than 80 DEG C.
Wire feeding disc and wire feed situation establish special messenger to guard, and to ensure smooth wire feed, prevent a material " knotting ", must ensure definitely to insulate between two, in order to avoid cause short circuit simultaneously.
Spray should be tried before spraying on test plate (panel), so that regulating voltage, electric current, wire feed rate, compressed air require, check union and the hose nipple of gas circuit, must not gas leak phenomenon be had.As found, the Special fields such as wire feed shakiness, electric arc unstable combustion, serious gas leakage should check in time, adjust.Master loop should be disconnected, in order to avoid damage main spraying source during regulating voltage.In spraying process, the ignition tip of scaling loss should be changed in time, and the ignition tip that working accuracy exceeds standard prohibits the use.
If find wire feed shakiness, fuse rupturing, electric arc phenomenon off and in spraying process, should first check ignition tip behaviour in service, again check whether firm wire leading pipe is installed, and should tighten in time time loosening.
Claims (6)
1. a boiler anti-corrosion abrasionproof spray technology, is characterized in that: concrete operation step is as follows:
(1) prepare before spraying: set up scaffolding as required, remove the foreign material on heating surface, to tube wall spraying position quality inspection, site operation equipment is in place, electrical wiring, and source gas line connects, and abrasive reclaiming, canvas are laid;
(2) sprayed surface pre-treatment: carry out according to " thermal spray metal part surface preparation general rule ", to non-effective surface namely not sprayed surface adopt masking tape, hardwood plate or rubber hovel to cover protection, and reserved transitional region; Matter heavily fortified point is adopted to have the superfine quartz sand of irregular corner angle or Brown Alundum to carry out surface treatment by national standard, carry out surface second with emergy again to blow sand, adopt TR100 pocket surface roughness tester to detect, then adopt clean kraft paper or plastic film covering protection;
(3) spray: adopt Ultrasonic Arc Sprayed equipment to carry out electric arc spraying according to GB11375-99 " thermospray operational safety ", select the bottoming of iron-based self-adhesion alloy wire to spray, thickness >=0.05 mm; Then adopt LX88A superhard wear alloy wire or 45CT nimonic silk material to spray, coat-thickness is 0.5-0.6mm; Adopt intersecting parallels spraying method, layering, district operation, 5-6 ㎡ is a region, moves again and change to other regions after a region spraying reaches thickness;
(4) use LG-3 type high-temperature wearable special hole sealing agent against corrosion to metal thermal spraying coatingsurface sealing of hole.
2. a kind of boiler anti-corrosion abrasionproof spray technology according to claim 1, is characterized in that: adopt pressure type sand-blast device to carry out sandblasting in step (2), utilize on-the-spot source of the gas or provide air compressor machine for oneself, extraction flow>=6m
3/ min, operating pressure 0.55-0.8Mp; Grit blasting operation method is: A. first eliminates rust from bottom to up, rough heating surface is polished smooth smooth after sandblasting immediately; B. remove rust, oxide skin, the coking dirt settling of steel surface with quartz sand, and expose canescence metalluster: sandblasting distance 150 ~ 300mm, the sandblasting angle formed with matrix is 50 ~ 90 °, each sandblasting 5-6 ㎡; C. spray Brown Alundum roughening substrate surface, surface clearness reaches Sa3.0 level; After sandblasting, tube wall surface is dry, and free from dust, without greasy dirt, non-scale, without rust staining and other foreign material, substrate surface presents the metalluster of homogeneous, and degree of cleaning reach Sa3.0 level, and roughness reaches Rz80-120 μm; D. adopt TR100 pocket surface roughness tester to detect pretreated surface after sandblasting, find that there is corrosion or position is underproof again processes, after qualified, with DC-2000B type intelligence ultrasound thickness tester, first time thickness measuring is carried out to tube wall again; In 2 ~ 4 hours, electric arc spraying is carried out after sandblasting completion.
3. a kind of boiler anti-corrosion abrasionproof spray technology according to claim 1, is characterized in that: superfine quartz sand described in step (2) or Brown Alundum use advance row filter, and clay and fine dust content≤5% in sand, without greasy dirt; Quartz sand dryness in the sun before sandblasting, water content≤1%, sand grains used is clean, dry, and sand blasted area is established and gone along with sb. to guard him and recovery measure, prevents from making moist, drenches with rain, is mixed into impurity in sand, do not pollute surrounding environment.
4. a kind of boiler anti-corrosion abrasionproof spray technology according to claim 1, is characterized in that: spraying equipment described in step (3) is ZPG-500A type Ultrasonic Arc Sprayed power source special and supporting wire feeder; Spray gun is supersonic electric arc spray gun, atomized air flow rate >500m/s, velocity of particle >=420m/s, coating porosity≤0.9%; Spraying parameter is: arc voltage: 32 ~ 34V; Flame current: 160 ~ 200A; Atomization air pressure: 0.5-0.8Mpa; Spray distance: 100-150mm; Circulate and carry out in sandblasting and the every 5-6 ㎡ interval of spraying, spraying transition peak width is 100mm, edge-smoothing transition, no concave-convex step.
5. a kind of boiler anti-corrosion abrasionproof spray technology according to claim 1, is characterized in that: in step (3), the diameter of LX88A superhard wear alloy wire or 45CT nimonic silk material is Φ 2.0mm.
6. a kind of boiler anti-corrosion abrasionproof spray technology according to claim 1, is characterized in that: during described spraying operation, interlayer temperature≤80 DEG C.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105331920A (en) * | 2015-11-11 | 2016-02-17 | 焦作安泰新型耐磨材料有限公司 | Method for preparing corrosion and abrasion resisting coating through supersonic electric arc spraying |
| CN106399912A (en) * | 2016-11-18 | 2017-02-15 | 无锡明盛纺织机械有限公司 | Preparation method of high-temperature resistant and anti-abrasion-and-corrosion gradient coating used for circulating fluidized bed boiler |
| CN106500540A (en) * | 2015-09-06 | 2017-03-15 | 上海上电漕泾发电有限公司 | A kind of method for reducing boiler heating surface abrasion |
| CN108193160A (en) * | 2018-02-06 | 2018-06-22 | 河南泰邦厨具有限公司 | Cooker spraying method |
| CN108854285A (en) * | 2018-07-13 | 2018-11-23 | 廊坊萍锅炉保养工程有限公司 | A kind of boiler endogenous fire side and water side maintaining method |
| CN109518116A (en) * | 2018-11-16 | 2019-03-26 | 上海蜂云航空科技有限公司 | A kind of method of boiler water-wall tube surfacecti proteon |
| CN109836027A (en) * | 2019-04-11 | 2019-06-04 | 苏州工业园区中法环境技术有限公司 | The restorative procedure of sludge drying device |
| CN112030051A (en) * | 2020-09-03 | 2020-12-04 | 深圳市博厚精密金属制品有限公司 | High-wear-resistance hardware stamping die and preparation method thereof |
| CN112159947A (en) * | 2020-11-03 | 2021-01-01 | 上海戎实喷涂机械有限公司 | Electric arc spraying method |
| CN112361325A (en) * | 2020-10-29 | 2021-02-12 | 广东博盈特焊技术股份有限公司 | Overheating device and manufacturing method thereof |
| CN113088863A (en) * | 2021-02-24 | 2021-07-09 | 济南鼎华耐磨材料技术有限公司 | Supersonic electric arc amorphous alloy spraying process applied to garbage furnace |
| CN113463097A (en) * | 2021-07-02 | 2021-10-01 | 江西恒大高新技术股份有限公司 | Corrosion-resistant composite coating in garbage incinerator environment and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298654A (en) * | 2008-06-30 | 2008-11-05 | 钢铁研究总院 | Ceramic-phase-containing iron-based amorphous nanocrystalline composite coating and preparation thereof |
| CN201382412Y (en) * | 2009-05-21 | 2010-01-13 | 刘少光 | Water-cooling wall with anti-shedding wear-resistant coating |
| CN101994076A (en) * | 2010-11-26 | 2011-03-30 | 北京工业大学 | Ferrous chlorine corrosion resistant electric arc spraying powder core wire |
| CN104264102A (en) * | 2014-10-15 | 2015-01-07 | 西安石油大学 | Preparation method of nickel base alloy coating on boiler water wall |
-
2015
- 2015-05-22 CN CN201510266713.7A patent/CN104878344A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298654A (en) * | 2008-06-30 | 2008-11-05 | 钢铁研究总院 | Ceramic-phase-containing iron-based amorphous nanocrystalline composite coating and preparation thereof |
| CN201382412Y (en) * | 2009-05-21 | 2010-01-13 | 刘少光 | Water-cooling wall with anti-shedding wear-resistant coating |
| CN101994076A (en) * | 2010-11-26 | 2011-03-30 | 北京工业大学 | Ferrous chlorine corrosion resistant electric arc spraying powder core wire |
| CN104264102A (en) * | 2014-10-15 | 2015-01-07 | 西安石油大学 | Preparation method of nickel base alloy coating on boiler water wall |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500540A (en) * | 2015-09-06 | 2017-03-15 | 上海上电漕泾发电有限公司 | A kind of method for reducing boiler heating surface abrasion |
| CN105331920A (en) * | 2015-11-11 | 2016-02-17 | 焦作安泰新型耐磨材料有限公司 | Method for preparing corrosion and abrasion resisting coating through supersonic electric arc spraying |
| CN106399912A (en) * | 2016-11-18 | 2017-02-15 | 无锡明盛纺织机械有限公司 | Preparation method of high-temperature resistant and anti-abrasion-and-corrosion gradient coating used for circulating fluidized bed boiler |
| CN108193160A (en) * | 2018-02-06 | 2018-06-22 | 河南泰邦厨具有限公司 | Cooker spraying method |
| CN108854285A (en) * | 2018-07-13 | 2018-11-23 | 廊坊萍锅炉保养工程有限公司 | A kind of boiler endogenous fire side and water side maintaining method |
| CN109518116A (en) * | 2018-11-16 | 2019-03-26 | 上海蜂云航空科技有限公司 | A kind of method of boiler water-wall tube surfacecti proteon |
| CN109836027A (en) * | 2019-04-11 | 2019-06-04 | 苏州工业园区中法环境技术有限公司 | The restorative procedure of sludge drying device |
| CN112030051A (en) * | 2020-09-03 | 2020-12-04 | 深圳市博厚精密金属制品有限公司 | High-wear-resistance hardware stamping die and preparation method thereof |
| CN112361325A (en) * | 2020-10-29 | 2021-02-12 | 广东博盈特焊技术股份有限公司 | Overheating device and manufacturing method thereof |
| CN112159947A (en) * | 2020-11-03 | 2021-01-01 | 上海戎实喷涂机械有限公司 | Electric arc spraying method |
| CN113088863A (en) * | 2021-02-24 | 2021-07-09 | 济南鼎华耐磨材料技术有限公司 | Supersonic electric arc amorphous alloy spraying process applied to garbage furnace |
| CN113463097A (en) * | 2021-07-02 | 2021-10-01 | 江西恒大高新技术股份有限公司 | Corrosion-resistant composite coating in garbage incinerator environment and preparation method thereof |
| CN116273782A (en) * | 2023-03-28 | 2023-06-23 | 四川齐高新能源科技有限公司 | Manufacturing process of membrane water-cooled wall high-temperature nano protection layer of pulverized coal boiler |
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Application publication date: 20150902 |