CN109594033A - A kind of method of transferred arc supersonic speed plasma wire spraying aluminized coating - Google Patents
A kind of method of transferred arc supersonic speed plasma wire spraying aluminized coating Download PDFInfo
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- CN109594033A CN109594033A CN201910073596.0A CN201910073596A CN109594033A CN 109594033 A CN109594033 A CN 109594033A CN 201910073596 A CN201910073596 A CN 201910073596A CN 109594033 A CN109594033 A CN 109594033A
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- Prior art keywords
- aluminized coating
- supersonic speed
- speed plasma
- transferred arc
- spraying
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Classifications
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- 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
- C23C4/134—Plasma spraying
-
- 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 invention discloses a kind of methods of transferred arc supersonic speed plasma wire spraying aluminized coating, comprising the following steps: Step 1: carrying out ultrasonic cleaning and sandblasting roughening to low carbon steel substrate surface；Transferred arc is sprayed on low carbon steel substrate surface and prepares aluminized coating with angle, setup parameter at a distance from nozzle Step 2: adjusting the wire feed position of supersonic speed plasma spraying rifle；Step 3: natural cooling workpiece is to room temperature in painting environments.The present invention provides a kind of methods of transferred arc supersonic speed plasma wire spraying aluminized coating, and the preparation efficiency of the aluminized coating of high quality is significantly improved by the regulation of parameters.
Description
Technical field
The present invention relates to coat preparing technology fields more particularly to a kind of transferred arc supersonic speed plasma wire spraying aluminium to apply
The method of layer.
Background technique
Mild steel is widely used in automobile, pipeline, ship, bridge etc. because of its excellent mechanical performance and lower cost
In various industry and military affairs, however when steel component is chronically exposed in corrosive environment (such as atmosphere, seawater, sewage, chemical mediator
Deng), corrode extremely serious.The whole world accounts for about 1/10th of output of steel because losing caused by steel corrosion according to statistics, China
The economic loss as caused by corroding accounts about national total output value 2%-4% every year, and the corrosion of steel material causes largely
Resource and energy waste, it is therefore, particularly significant to the research of steel corrosion guard technology.
Aluminium is one of the best protection material of steel corrosion protection.Because easily oxidation generates stable oxygen to aluminium in an atmosphere
Change aluminium, can effectively prevent the infiltration of corrosive medium, with the good isolating and protecting effect for stopping corrosive medium.Aluminium simultaneously
It is good positive polarity material again, there is electrode potential more more negative than steel to have in the presence of electrolyte to steel material for it
The cathodic protection of sacrificial anode acts on.
Plasma spray technology refers to as an important technology in Surface Engineering and Rebuilding engineering using certain heat source,
Such as flame, electric arc, plasma melt powder or the sprayed on material of silk material form, while by high-speed gas by molten
The sprayed on material of state forms a kind of technique of coating to be ejected at a high speed by pretreated matrix surface.Nowadays to steel material
The anti-corrosion of material, the especially long-term anti-corrosion of those large-scale, important steel components, thermal spraying aluminum coating are a kind of preferable protections
Method.Generalling use flame-spraying, electric arc spraying and plasma untransferable arc spraying technology prepares aluminized coating at present.But these sides
Method disadvantage also than more prominent, such as: (1) flame-spraying due to its heat source temperature only have 3100 DEG C, and flying speed of partcles only has slowly
100m/s prepares aluminized coating low efficiency, of poor quality；(2) electric arc spraying heat source temperature can achieve 4000 DEG C -6000 DEG C, particle
Flying speed can achieve 100-300m/s, and spray efficiency is high, but the aluminized coating degree of oxidation prepared is serious；(3) supersonic speed
Plasma spraying heat source temperature is up to 11000 DEG C, and flying speed of partcles is up to 700m/s, can prepare the aluminized coating of high quality,
But its sprayed on material uses powder feeding mode, and spray efficiency is low.
Current traditional thermal spraying prepare aluminized coating there are aiming at the problem that, it is desirable to provide a kind of high efficiency prepares high-quality Al
The heat spraying method of coating.
Summary of the invention
The present invention is to solve current technology shortcoming, provides a kind of transferred arc supersonic speed plasma wire spraying aluminium
The method of coating significantly improves the preparation efficiency of the aluminized coating of high quality by the regulation of parameters.
Technical solution provided by the invention are as follows: a kind of method of transferred arc supersonic speed plasma wire spraying aluminized coating, packet
Include following steps:
Step 1: carrying out ultrasonic cleaning and sandblasting roughening to low carbon steel substrate surface；
Step 2: the wire feed position of supersonic speed plasma spraying rifle is adjusted at a distance from nozzle and angle, setup parameter,
Low carbon steel substrate surface spraying transferred arc prepares aluminized coating；
Step 3: natural cooling workpiece is to room temperature in painting environments.
Preferably,
In the step 2, wire feed position meets with nozzle distance d:
Wherein, R is aluminium wire average diameter, and V is operating voltage when work sprays, and T is environment temperature.
Preferably,
In the step 2, the angle [alpha] of wire feed position and nozzle
Wherein, I is operating current when work sprays.
Preferably,
Wire feed rate v meets:
Wherein, κ is correction coefficient, QArArgon flow when being sprayed for work,Hydrogen flowing quantity when spraying for work, H are
Spray distance.
Preferably,
The specific parameter setting of step 2 includes:
Open arc spray parameters are as follows: operating voltage: 0V；Operating current: 200-220A；Argon flow: 90-100L/min；Hydrogen
Throughput: 0L/min；
Arc maintenance spray parameters are as follows: operating voltage: 30-70V；Operating current: 100-200A；Argon flow: 60-160L/
min；Hydrogen flowing quantity: 2-20L/min；
Work spray parameters are as follows: operating voltage: 100-150V；Operating current: 150-400A；Argon flow: 60-160L/
min；Hydrogen flowing quantity: 2-20L/min.
Preferably,
Sandblasting roughening is carried out using sand-blasting machine in the step 1, the sandblasting parameter is set and meets:
0.6 ± 0.1Mpa of sandblasting air pressure；30 ± 5mm of sandblasting distance；70 ± 10 ° of sandblasting angle.
Preferably,
In the step 2, sprayed on material is fine aluminium silk；
The diameter of the fine aluminium silk is 1.8~2.2mm.
Preferably,
The diameter of the fine aluminium silk is 2mm.
Preferably,
Open arc spray parameters are as follows: operating voltage: 0V；Operating current: 210A；Argon flow: 95L/min；Hydrogen flowing quantity:
0L/min；
Arc maintenance spray parameters are as follows: operating voltage: 50V；Operating current: 150A；Argon flow: 100L/min；Hydrogen flowing quantity:
10L/min；
Work spray parameters are as follows: operating voltage: 120V；Operating current: 300A；Argon flow: 100L/min；Hydrogen stream
Amount: 10L/min.
It is of the present invention the utility model has the advantages that providing a kind of side of transferred arc supersonic speed plasma wire spraying aluminized coating
Method significantly improves the preparation efficiency of the aluminized coating of high quality by the regulation of parameters.Spray efficiency height, process stabilizing；Spray
The degree of oxidation of particle is small during painting, the aluminized coating structure of preparation uniformly, tissue stabilization, coating porosity it is low, bond strength
It is high.
Detailed description of the invention
Fig. 1 is that transferred arc supersonic speed plasma wire of the present invention sprays aluminized coating device figure.
Fig. 2 is the flow chart for the method that transferred arc supersonic speed plasma wire of the present invention sprays aluminized coating.
Fig. 3 is wire feed position schematic diagram at a distance from nozzle.
Fig. 4 is the angle schematic diagram of wire feed position and nozzle.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It is of the invention that the present invention provides a kind of method of transferred arc supersonic speed plasma wire spraying aluminized coating, such as Fig. 1
It show a kind of transferred arc supersonic speed plasma wire spray equipment, including transferred-arc plasma torch, anode nozzle, refrigeration system
System, wire feed system and control system.
As shown in Figure 1, power supply includes big power supply and small power supply, the cathode of big power supply and small power supply connects and composes the negative of power supply
Pole, anode include two anodes, are respectively as follows: big positive pole and small power supply anode.The inside tungsten electrode of transferred-arc plasma torch
Connect the cathode of power supply, output end jointed anode nozzle.Anode nozzle connects the low current anode of power supply.As shown in Figures 3 and 4,
The outer profile of anode nozzle is in revolution shape, and center has through-hole, and the through-hole includes first segment and second segment, and described first
Section is set on the anode of transferred-arc plasma torch, and the second segment is rotary table；The half of the junction of first segment and second segment
Diameter is identical, and the port of first segment and the port radius of second segment are all larger than the radius of junction.One end connection of wire feed connector is big
Electric current is positive, second segment port described in other end face.
Refrigeration system includes refrigeration machine, electric adaptor, continuous water pipe and water power cable, for providing circulation to plasma gun
Cooling water cools down transferred-arc plasma torch.Refrigeration machine includes outlet pipe and return pipe, the outlet pipe connection
Be discharged cable, the return pipe connects back to water power cable, the water outlet cable be connected to the return water cable described transferred arc etc. from
Sub- spray gun.The connection of the junction and the electrode cable of the cathode cable and the return water cable and the water outlet cable
Water power adapter is respectively set in place.
The wire feed system includes: wire-feed motor, wire feed hose and wire feed connector, and the output end connection wire feed of wire-feed motor is soft
Pipe, wire feed hose connect wire feed connector.Metal wire material is sent through wire feed hose, wire feed connector to nozzle by wire-feed motor, is sent
Threaded Connector Coupling connects the high current anode of power supply.
Control assembly connect the power supply, the refrigeration machine, the wire-feed motor, the transferred-arc plasma torch, argon gas,
Secondary gas.For controlling the water, electricity, gas of complete equipment, the operating status of real-time monitoring equipment.
As shown in Fig. 2, the present invention provides a kind of method of transferred arc supersonic speed plasma wire spraying aluminized coating, tool
Body running principle are as follows: low current maintains plasma arc not current interruption (the low current anode that nozzle connects power supply), and high current is melting aluminum
The heat source (the high current anode that wire feed connector connects power supply) of silk, plasma arc is drawn out nozzle bore when aluminium wire is sent to spray nozzle front end
To aluminium wire, high current is connected, and while high energy, high-temperature plasma arc melt aluminium wire, the atomization of high speed plasma jet accelerates to melt
Drop makes its injection to matrix surface form coating.Specific preparation method includes the following steps:
It takes low carbon steel substrate Step 1: wearing rubber gloves, it is anhydrous greater than 99.7% to dip in purity with tweezers folder absorbent cotton
Ethyl alcohol cleans the grease stain of surface of low-carbon steel, spot.
Step 2: ultrasonic cleaning, and sandblasting roughening is carried out using sand-blasting machine, with 16-20# white fused alumina coarsening mild steel table
Face；Set 0.6 ± 0.1Mpa of sandblasting air pressure；30 ± 5mm of sandblasting distance；70 ± 10 ° of sandblasting angle.Sandblasting is to mild steel table
Face roughening is obvious, and observation is without bright face, dull surface under sunlight or light.
Step 3: the mild steel after sandblasting is fixed on fixtures for painting.
Step 4: selecting the fine aluminium silk of 2mm as sprayed on material, sent through wire feed hose, wire feed connector to spray by wire-feed motor
Immediately ahead of mouth；Wire feed connector connects the high current anode of power supply.Determine wire feed position and nozzle distance d and angle [alpha] (such as Fig. 3,
4)。
Step 5: operating voltage is opened in setting: 0V；Operating current: 200A；Argon flow: 100L/min；Hydrogen flowing quantity: 0L/
min；By high-frequency arc strike, when striking is untransferable arc, and tungsten electrode is cathode, and nozzle is anode, and arc is in nozzle interior.
Step 6: setting arc maintenance spray parameters are as follows: operating voltage: 50V；Operating current: 120A；Argon flow: 800L/
min；Hydrogen flowing quantity: 2-20L/min；Plasma arc is maintained to stablize in nozzle interior.
Step 7: setting work spray parameters are as follows: operating voltage: 145V；Operating current: 340A；Argon flow: 80L/
min；Hydrogen flowing quantity: 12L/min.Wire-feed motor is opened, at this point, plasma arc is elongated to by the untransferable arc between tungsten electrode and nozzle
Between tungsten electrode and aluminium wire, transferred arc is formed, is sprayed.
Step 8: spraying terminates natural cooling workpiece to room temperature.
In step 4, wire feed position meets with nozzle distance d:
Wherein, R is aluminium wire average diameter, and V is operating voltage when work sprays, and T is environment temperature.
In the step 4, the angle [alpha] of wire feed position and nozzle meets:
Wherein, R is aluminium wire average diameter, and V is operating voltage when work sprays, and T is environment temperature.
In the step 7, wire feed rate meets:
Wherein, κ is correction coefficient, QArArgon flow when being sprayed for work,Hydrogen flowing quantity when spraying for work, H are
Spray distance.
The method of embodiment one, a kind of transferred arc supersonic speed plasma wire spraying aluminized coating:
It takes low carbon steel substrate Step 1: wearing rubber gloves, it is anhydrous greater than 99.7% to dip in purity with tweezers folder absorbent cotton
Ethyl alcohol cleans the grease stain of surface of low-carbon steel, spot.
Step 2: ultrasonic cleaning, and sandblasting roughening is carried out using sand-blasting machine, with 16-20# white fused alumina coarsening mild steel table
Face；Set sandblasting air pressure 0.5Mpa；Sandblasting distance 25mm；60 ° of sandblasting angle.Sandblasting is obvious to surface of low-carbon steel roughening,
Observation is without bright face, dull surface under sunlight or light.
Step 3: the mild steel after sandblasting is fixed on fixtures for painting.
Step 4: select the fine aluminium silk of 1.8mm as sprayed on material, by wire-feed motor through wire feed hose, wire feed connector send to
Immediately ahead of nozzle；Wire feed connector connects the high current anode of power supply.Determine wire feed position and nozzle distance d and angle [alpha] (such as Fig. 3,
4)。
Arc spray coating operations voltage: 0V is opened Step 5: setting；Operating current: 200A；Argon flow: 90L/min；Hydrogen flowing quantity:
0L/min；By high-frequency arc strike, when striking is untransferable arc, and tungsten electrode is cathode, and nozzle is anode, and arc is in nozzle interior.
Step 6: setting arc maintenance spray parameters are as follows: operating voltage: 30V；Operating current: 100A；Argon flow: 60L/
min；Hydrogen flowing quantity: 2L/min；Plasma arc is maintained to stablize in nozzle interior.
Step 7: setting work spray parameters are as follows: operating voltage: 100V；Operating current: 150A；Argon flow: 60L/
min；Hydrogen flowing quantity: 2L/min.Wire-feed motor is opened, at this point, plasma arc is elongated to by the untransferable arc between tungsten electrode and nozzle
Between tungsten electrode and aluminium wire, transferred arc is formed, is sprayed.
Step 8: spraying terminates natural cooling workpiece to room temperature.
The structure of the aluminized coating prepared in embodiment one uniformly, tissue stabilization, coating porosity (3.1 ± 0.5) %, be lower than
The aluminized coating porosity prepared in the prior art.
The method of embodiment two, a kind of transferred arc supersonic speed plasma wire spraying aluminized coating:
It takes low carbon steel substrate Step 1: wearing rubber gloves, it is anhydrous greater than 99.7% to dip in purity with tweezers folder absorbent cotton
Ethyl alcohol cleans the grease stain of surface of low-carbon steel, spot.
Step 2: ultrasonic cleaning, and sandblasting roughening is carried out using sand-blasting machine, with 16-20# white fused alumina coarsening mild steel table
Face；Set sandblasting air pressure 0.7Mpa；Sandblasting distance 35mm；80 ° of sandblasting angle.Sandblasting is obvious to surface of low-carbon steel roughening,
Observation is without bright face, dull surface under sunlight or light.
Step 3: the mild steel after sandblasting is fixed on fixtures for painting.
Step 4: select the fine aluminium silk of 2.2mm as sprayed on material, by wire-feed motor through wire feed hose, wire feed connector send to
Immediately ahead of nozzle；Wire feed connector connects the high current anode of power supply.Determine wire feed position (aluminium wire 200) and 100 distance d of nozzle and
Angle [alpha] (such as Fig. 3,4).
Step 5: arc spray parameters: operating voltage: 0V are opened in setting；Operating current: 220A；Argon flow: 100L/min；
Hydrogen flowing quantity: 0L/min；By high-frequency arc strike, when striking is untransferable arc, and tungsten electrode is cathode, and nozzle is anode, and arc is in nozzle
It is internal.
Step 6: setting arc maintenance spray parameters are as follows: operating voltage: 70V；Operating current: 200A；Argon flow: 160L/
min；Hydrogen flowing quantity: 20L/min；Plasma arc is maintained to stablize in nozzle interior.
Step 7: setting work spray parameters are as follows: operating voltage: 150V；Operating current: 400A；Argon flow: 160L/
min；Hydrogen flowing quantity: 20L/min.Wire-feed motor is opened, at this point, plasma arc is elongated to by the untransferable arc between tungsten electrode and nozzle
Between tungsten electrode and aluminium wire, transferred arc is formed, is sprayed.
Step 8: spraying terminates natural cooling workpiece to room temperature.
The structure of the aluminized coating prepared in embodiment two uniformly, tissue stabilization, coating porosity (3.8 ± 0.5) %, be lower than
The aluminized coating porosity prepared in the prior art.
The method of embodiment three, a kind of transferred arc supersonic speed plasma wire spraying aluminized coating:
It takes low carbon steel substrate Step 1: wearing rubber gloves, it is anhydrous greater than 99.7% to dip in purity with tweezers folder absorbent cotton
Ethyl alcohol cleans the grease stain of surface of low-carbon steel, spot.
Step 2: ultrasonic cleaning, and sandblasting roughening is carried out using sand-blasting machine, with 16-20# white fused alumina coarsening mild steel table
Face；Set sandblasting air pressure 0.6Mpa；Sandblasting distance 30mm；70 ° of sandblasting angle.Sandblasting is obvious to surface of low-carbon steel roughening,
Observation is without bright face, dull surface under sunlight or light.
Step 3: the mild steel after sandblasting is fixed on fixtures for painting.
Step 4: selecting the fine aluminium silk of 2mm as sprayed on material, sent through wire feed hose, wire feed connector to spray by wire-feed motor
Immediately ahead of mouth；Wire feed connector connects the high current anode of power supply.Determine wire feed position and nozzle distance d and angle [alpha] (such as Fig. 3,
4)。
Step 5: arc spray parameters: operating voltage: 0V are opened in setting；Operating current: 210A；Argon flow: 95L/min；Hydrogen
Throughput: 0L/min；By high-frequency arc strike, when striking is untransferable arc, and tungsten electrode is cathode, and nozzle is anode, and arc is in nozzle
Portion.
Step 6: setting arc maintenance spray parameters are as follows: operating voltage: 50V；Operating current: 150A；Argon flow: 100L/
min；Hydrogen flowing quantity: 10L/min；Plasma arc is maintained to stablize in nozzle interior.
Step 6: setting work spray parameters are as follows: operating voltage: 120V；Operating current: 300A；Argon flow: 100L/
min；Hydrogen flowing quantity: 10L/min.Wire-feed motor is opened, at this point, plasma arc is elongated to by the untransferable arc between tungsten electrode and nozzle
Between tungsten electrode and aluminium wire, transferred arc is formed, is sprayed.
Step 7: spraying terminates natural cooling workpiece to room temperature.
In step 4, wire feed position meets with nozzle distance d:
Wherein, R is aluminium wire average diameter, and V is operating voltage when work sprays, and T is environment temperature.
In the step 4, the angle [alpha] of wire feed position and nozzle meets:
Wherein, I is operating current when work sprays.
In step 7, wire feed rate v meets:
Wherein, κ is correction coefficient, numerical value 0.00014, QArArgon flow when being sprayed for work,For work spraying
When hydrogen flowing quantity, H is spray distance, numerical value 100mm.
The structure of the aluminized coating prepared in embodiment three uniformly, tissue stabilization, coating porosity (2 ± 0.5) %, lower than existing
There is the aluminized coating porosity prepared in technology.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (9)
1. a kind of method of transferred arc supersonic speed plasma wire spraying aluminized coating, which comprises the following steps:
Step 1: carrying out ultrasonic cleaning and sandblasting roughening to low carbon steel substrate surface；
Step 2: the wire feed position of supersonic speed plasma spraying rifle is adjusted at a distance from nozzle and angle, setup parameter, in low-carbon
Steel matrix surface spraying transferred arc prepares aluminized coating；
Step 3: natural cooling workpiece is to room temperature in painting environments.
2. the method for transferred arc supersonic speed plasma wire spraying aluminized coating according to claim 1, which is characterized in that institute
It states in step 2, wire feed position meets with nozzle distance d:
Wherein, R is aluminium wire average diameter, and V is operating voltage when work sprays, and T is environment temperature.
3. the method for transferred arc supersonic speed plasma wire spraying aluminized coating according to claim 1, which is characterized in that institute
It states in step 2, the angle [alpha] of wire feed position and nozzle meets:
Wherein, I is operating current when work sprays.
4. the method for transferred arc supersonic speed plasma wire spraying aluminized coating according to claim 3, which is characterized in that send
Silk rate v meets:
Wherein, κ is correction coefficient, QArArgon flow when being sprayed for work,Hydrogen flowing quantity when spraying for work, H are spraying
Distance.
5. the method for transferred arc supersonic speed plasma wire spraying aluminized coating according to claim 4, which is characterized in that institute
Stating the specific parameter setting of step 2 includes:
Open arc spray parameters are as follows: operating voltage: 0V；Operating current: 200-220A；Argon flow: 90-100L/min；Hydrogen stream
Amount: 0L/min；
Arc maintenance spray parameters are as follows: operating voltage: 30-70V；Operating current: 100-200A；Argon flow: 60-160L/min；Hydrogen
Throughput: 2-20L/min；
Work spray parameters are as follows: operating voltage: 100-150V；Operating current: 150-400A；Argon flow: 60-160L/min；
Hydrogen flowing quantity: 2-20L/min.
6. the method for transferred arc supersonic speed plasma wire spraying aluminized coating according to claim 5, which is characterized in that institute
It states in step 1 and sandblasting roughening is carried out using sand-blasting machine, set the sandblasting parameter and meet:
0.6 ± 0.1Mpa of sandblasting air pressure；30 ± 5mm of sandblasting distance；70 ± 10 ° of sandblasting angle.
7. the method for transferred arc supersonic speed plasma wire spraying aluminized coating according to claim 6, which is characterized in that
In the step 2, sprayed on material is fine aluminium silk；
The diameter of the fine aluminium silk is 1.8~2.2mm.
8. the method for transferred arc supersonic speed plasma wire spraying aluminized coating according to claim 7, which is characterized in that
The diameter of the fine aluminium silk is 2mm.
9. the method for transferred arc supersonic speed plasma wire spraying aluminized coating according to claim 1, which is characterized in that
Open arc spray parameters are as follows: operating voltage: 0V；Operating current: 210A；Argon flow: 95L/min；Hydrogen flowing quantity: 0L/
min；
Arc maintenance spray parameters are as follows: operating voltage: 50V；Operating current: 150A；Argon flow: 100L/min；Hydrogen flowing quantity: 10L/
min；
Work spray parameters are as follows: operating voltage: 120V；Operating current: 300A；Argon flow: 100L/min；Hydrogen flowing quantity:
10L/min。
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| CN201910073596.0A CN109594033B (en) | 2019-01-25 | 2019-01-25 | Method for spraying aluminum coating on transferred arc supersonic speed plasma wire |
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| CN201910073596.0A CN109594033B (en) | 2019-01-25 | 2019-01-25 | Method for spraying aluminum coating on transferred arc supersonic speed plasma wire |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086106A (en) * | 2021-11-22 | 2022-02-25 | 中国人民解放军陆军装甲兵学院 | Method for preparing ceramic particle reinforced aluminum-based composite coating by plasma transferred arc wire spraying |
| CN114086105A (en) * | 2021-11-22 | 2022-02-25 | 中国人民解放军陆军装甲兵学院 | Method for plasma spraying aluminum-based ceramic coating by synchronously feeding wire powder |
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| AU2003245158A1 (en) * | 2002-06-28 | 2004-01-19 | Bodycote Metallurgical Coatings Limited | Corrosion-resistant coatings for steel tubes |
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| CN1242720A (en) * | 1997-02-14 | 2000-01-26 | 福特环球技术公司 | Improved plasma transferred wire arc thermal spray apparatus and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114086106A (en) * | 2021-11-22 | 2022-02-25 | 中国人民解放军陆军装甲兵学院 | Method for preparing ceramic particle reinforced aluminum-based composite coating by plasma transferred arc wire spraying |
| CN114086105A (en) * | 2021-11-22 | 2022-02-25 | 中国人民解放军陆军装甲兵学院 | Method for plasma spraying aluminum-based ceramic coating by synchronously feeding wire powder |
| CN114086105B (en) * | 2021-11-22 | 2024-02-20 | 中国人民解放军陆军装甲兵学院 | Method for plasma spraying aluminum-based ceramic coating by synchronous feeding of silk powder |
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