CN106282886B - A kind of High Speed Electric Arc Spraying liquid metal ceramic coating and preparation method thereof - Google Patents
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating and preparation method thereof Download PDFInfo
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- CN106282886B CN106282886B CN201610851041.0A CN201610851041A CN106282886B CN 106282886 B CN106282886 B CN 106282886B CN 201610851041 A CN201610851041 A CN 201610851041A CN 106282886 B CN106282886 B CN 106282886B
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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
- C23C4/04—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
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Abstract
The invention discloses a kind of High Speed Electric Arc Spraying liquid metal ceramic coating and preparation method thereof, High Speed Electric Arc Spraying liquid metal ceramic coating is prepared by each raw material of following parts by weight: 60~80 parts of ferro-boron；3~6 parts of ferrosilicon；2~5 parts of nickel powder；3~5 parts of aluminium powder；5~20 parts of graphite；5~10 parts of chromium powder；5~15 parts of arc stabilizer.The prepared liquid metal ceramic coating content of amorphous of tubulose powder core mixing proportion disclosed by the invention is high (>=85%), with high rigidity (HV0.1 >=10000), the performances such as high abrasion, corrosion-resistant have the characteristics that low in cost, spray efficiency is high, deposition efficiency is good, deposition quality is high and arc stability is good compared with prior art.
Description
Technical field
The invention belongs to High Speed Electric Arc Spraying field, in particular to a kind of High Speed Electric Arc Spraying for coal-fired boiler tubes
Liquid metal ceramic coating and preparation method thereof.
Background technique
High-speed arc spraying technology is according to gas dynamics, based on conventional arc spraying technology, using new
Type De Laval noz(zle) designs and improves spray gun, and sprayed on material molten drop is using high rapid fire caused by high pressure draught or fuel combustion
The lower atomization of stream effect, improves arc stability, improves spraying particle velocity, reduce the aerial flight of atomization particle
Time reduces the degree of oxidation of coating, and then improves coating quality.Compared with conventional arc spraying technology, High Speed Electric Arc Spraying
Essentially consist in the pressure and flow velocity for improving atomization gas.And the raising of spraying process depends on the excellent of sprayed on material at present
Change, although arc spraying technology start from the 1920s, nowadays indispensable as electric arc spraying tubulose powder core wire
Material but shows slightly lag using starting, and initial tubulose powder cored filament material rigidity was poor, wire feed is more difficult, until last century 80 years
Generation, German H.Dreniek are successfully prepared for the property alloy that solid material is difficult to obtain using metal-powder-core silk material
Coating, powder cored filament material just achieves biggish progress in electric arc spraying field, and starts to rapidly develop.So far, electric arc sprays
It applies material and is basically completed the transformation from solid material to powder cored filament material.
The working environments of coal-fired boiler tubes is harsh, and operating ambient temperature is higher, up to 750 DEG C when tube wall coking, and
Containing the high hard particles of a large amount of high-melting-point and corrosive gas etc. in the high-temperature flue gas that coal dust firing is formed, these substances can be with
Certain velocity shock pipe surface, this can cause serious high temperature wear, corrosion and oxidation to pipe surface.Therefore, to combustion
The protective layer of coal burning boiler pipe surface will meet following performance requirement: excellent erosion property resistant to high temperatures；Excellent anti-thermal shock
Performance；Fine and close tissue and lower porosity；And low-cost coating material.It is in the prior art to be used for coal-burning boiler
A variety of tubulose powder cored filament materials of pipeline, usually have higher cost, new coating performance is unstable and processing performance is more multiple
The defects of miscellaneous.
Summary of the invention
There is spray efficiency height, deposition efficiency it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of
Good, the features such as deposition quality is high and arc stability is good High Speed Electric Arc Spraying liquid metal ceramic coating and preparation method thereof,
To solve higher cost, the technical problem that new coating performance is unstable and processing performance is complex in the prior art.
The present invention is achieved by the following technical solutions:
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 60 by each raw material of following parts by weight
~80 parts；3~6 parts of ferrosilicon；2~5 parts of nickel powder；3~5 parts of aluminium powder；5~20 parts of graphite；5~10 parts of chromium powder；Arc stabilizer 5
~15 parts.
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 64 by each raw material of following parts by weight
Part；4 parts of ferrosilicon；2 parts of nickel powder；3 parts of aluminium powder；5 parts of chromium powder；10 parts of graphite；12 parts of arc stabilizer.
Ferro-boron, ferrosilicon, nickel powder, aluminium powder, chromium powder and graphite mesh number are 1200 mesh.
The content of boron is 15-25% in ferro-boron.
The content of Silicon in Ferrosilicon is 40-50%.
A kind of preparation method of High Speed Electric Arc Spraying liquid metal ceramic coating, including following preparation step:
1) preparation of tubulose powder cored filament material: ferro-boron, ferrosilicon, nickel powder, aluminium powder, chromium powder, graphite and arc stabilizer are uniformly mixed,
Then mixture coated by wire coating machine with steel band, be closed, the steel band after closure is subjected to wire-drawing die by wire drawing machine
Tube reducing processing, obtains tubulose powder cored filament material；
2) tubulose powder cored filament material obtained in step 1) preparation of High Speed Electric Arc Spraying coating: is each passed through high speed arc spraying
Two ignition tips of flush coater power on and carry out surface spraying to target item.
In order to increase the hardness and electric conductivity of powder cored filament material, steel band is H08A mild-carbon steel strip.
For the purpose realized high-velocity spray He play high temperature melting powder cored filament material, two ignition tips respectively connected power supply
Anode and cathode.
In order to can uniformly be sprayed tubulose powder cored filament material Flashmelt, the diameter of tubulose powder cored filament material
For 1~4mm.
In order to guarantee the stability and safety of spraying, arc voltage is 38V, work electricity when High Speed Electric Arc Spraying machine works
Stream is 180A, and compressed air pressure is 0.5~0.8MPa, and spray distance is 170~190mm.
The prepared liquid metal ceramic coating content of amorphous height of tubulose powder core mixing proportion disclosed by the invention (>=
85%), there are high rigidity (HV0.1 >=10000), the performances such as high abrasion, corrosion-resistant have low in cost, spray compared with prior art
Apply the features such as high-efficient, deposition efficiency is good, deposition quality is high and arc stability is good.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 60 by each raw material of following parts by weight
~80 parts；3~6 parts of ferrosilicon；2~5 parts of nickel powder；3~5 parts of aluminium powder；5~20 parts of graphite；5~10 parts of chromium powder；Arc stabilizer 5
~15 parts；Ferro-boron, ferrosilicon, nickel powder, aluminium powder, chromium powder and graphite mesh number are 1200 mesh, and wherein the content of boron is 15- in ferro-boron
25%, the content of Silicon in Ferrosilicon is 40-50%.
A kind of preparation method of High Speed Electric Arc Spraying liquid metal ceramic coating, including following preparation step:
1) preparation of tubulose powder cored filament material: ferro-boron, ferrosilicon, nickel powder, aluminium powder, chromium powder, graphite and arc stabilizer are uniformly mixed,
Then mixture is coated with steel band, the powder cored filament material in order to coat stretches uniformly, and mixture and steel band are logical
Cross wire coating machine to be coated, be then closed the steel band for being coated with mixture, by the steel band after closure by wire drawing machine into
The processing of row wire-drawing die tube reducing, obtains tubulose powder cored filament material；In order to increase the hardness and electric conductivity of powder cored filament material, steel band H08A
Mild-carbon steel strip, in order to can uniformly be sprayed tubulose powder cored filament material Flashmelt, the diameter of tubulose powder cored filament material
For 1~4mm.
2) tubulose powder cored filament material obtained in step 1) preparation of High Speed Electric Arc Spraying coating: is each passed through high speed arc spraying
Two ignition tips of flush coater, for the purpose realized high-velocity spray He play high temperature melting powder cored filament material, two ignition tips point
It is not connected to the anode and cathode of power supply, powers on and surface spraying is carried out to target item；In order to guarantee the stability of spraying
And safety, High Speed Electric Arc Spraying machine work when arc voltage be 38V, operating current 180A, compressed air pressure be 0.5~
0.8MPa, spray distance are 170~190mm.
Embodiment 1
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 64 by each raw material of following parts by weight
Part；4 parts of ferrosilicon；2 parts of nickel powder；3 parts of aluminium powder；5 parts of graphite；10 parts of chromium powder；12 parts of arc stabilizer；Ferro-boron, ferrosilicon, nickel powder, aluminium powder,
Chromium powder and graphite mesh number are 1200 mesh, and wherein the content of boron is 15-25% in ferro-boron, and the content of Silicon in Ferrosilicon is 40-50%.
A kind of preparation method of High Speed Electric Arc Spraying liquid metal ceramic coating, including following preparation step:
1) preparation of tubulose powder cored filament material: ferro-boron, ferrosilicon, nickel powder, aluminium powder, chromium powder, graphite and arc stabilizer are uniformly mixed,
Then mixture coated with H08A mild-carbon steel strip by wire coating machine, be closed, by the steel band after closure by wire drawing machine into
The processing of row wire-drawing die tube reducing obtains the tubulose powder cored filament material that diameter is 1mm；
2) tubulose powder cored filament material obtained in step 1) preparation of High Speed Electric Arc Spraying coating: is each passed through high speed arc spraying
Two ignition tips of flush coater, two ignition tips respectively connected the anode and cathode of power supply, power on to target item into
The spraying of row surface；Arc voltage is 38V, operating current 180A, compressed air pressure 0.5 when High Speed Electric Arc Spraying machine works
~0.8MPa, spray distance are 170~190mm.
The prepared liquid metal ceramic coating content of amorphous height of tubulose powder core mixing proportion disclosed by the invention (>=
85%), there are high rigidity (HV0.1 >=10000), the performances such as high abrasion, corrosion-resistant have low in cost, spray compared with prior art
Apply the features such as high-efficient, deposition efficiency is good, deposition quality is high and arc stability is good.
Embodiment 2
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 80 by each raw material of following parts by weight
Part；3 parts of ferrosilicon；5 parts of nickel powder；4 parts of aluminium powder；10 parts of graphite；7 parts of chromium powder；10 parts of arc stabilizer；The preparation method of the coating is same
Embodiment 1.
Embodiment 3
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 60 by each raw material of following parts by weight
Part；5 parts of ferrosilicon；4 parts of nickel powder；5 parts of aluminium powder；17 parts of graphite；8 parts of chromium powder；13 parts of arc stabilizer；The preparation method of the coating is the same as real
Apply example 1.
Embodiment 4
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 70 by each raw material of following parts by weight
Part；6 parts of ferrosilicon；3 parts of nickel powder；3 parts of aluminium powder；8 parts of graphite；5 parts of chromium powder；15 parts of arc stabilizer；The preparation method of the coating is the same as real
Apply example 1.
Embodiment 5
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 68 by each raw material of following parts by weight
Part；3 parts of ferrosilicon；2 parts of nickel powder；4 parts of aluminium powder；9 parts of graphite；6 parts of chromium powder；5 parts of arc stabilizer；The preparation method of the coating is the same as implementation
Example 1.
Embodiment 6
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 72 by each raw material of following parts by weight
Part；5 parts of ferrosilicon；3 parts of nickel powder；5 parts of aluminium powder；20 parts of graphite；9 parts of chromium powder；7 parts of arc stabilizer；The preparation method of the coating is the same as real
Apply example 1.
Embodiment 7
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 77 by each raw material of following parts by weight
Part；4 parts of ferrosilicon；4 parts of nickel powder；5 parts of aluminium powder；15 parts of graphite；10 parts of chromium powder；8 parts of arc stabilizer；The preparation method of the coating is the same as real
Apply example 1.
Embodiment 8
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 74 by each raw material of following parts by weight
Part；6 parts of ferrosilicon；5 parts of nickel powder；4 parts of aluminium powder；12 parts of graphite；7 parts of chromium powder；6 parts of arc stabilizer；The preparation method of the coating is the same as real
Apply example 1.
Embodiment 9
A kind of High Speed Electric Arc Spraying liquid metal ceramic coating is prepared: ferro-boron 62 by each raw material of following parts by weight
Part；5 parts of ferrosilicon；4 parts of nickel powder；3 parts of aluminium powder；6 parts of graphite；5 parts of chromium powder；9 parts of arc stabilizer；The preparation method of the coating is the same as implementation
Example 1.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without depart from that overall concept of the invention, several changes and improvements can also be made, these also should be considered as of the invention
Protection scope.
Claims (1)
1. a kind of High Speed Electric Arc Spraying liquid metal ceramic coating, which is characterized in that by each raw material preparation of following parts by weight
At:
64 parts of ferro-boron；4 parts of ferrosilicon；2 parts of nickel powder；3 parts of aluminium powder；5 parts of chromium powder；10 parts of graphite；12 parts of arc stabilizer；
Ferro-boron, ferrosilicon, nickel powder, aluminium powder, chromium powder and graphite mesh number are 1200 mesh；
The content of boron is 15-25% in ferro-boron；
The content of Silicon in Ferrosilicon is 40-50%；
A kind of preparation method of above-mentioned High Speed Electric Arc Spraying liquid metal ceramic coating, including following preparation step:
1) preparation of tubulose powder cored filament material: ferro-boron, ferrosilicon, nickel powder, aluminium powder, chromium powder, graphite and arc stabilizer are uniformly mixed, then
Mixture is coated by wire coating machine with steel band, is closed, the steel band after closure is subjected to wire-drawing die tube reducing by wire drawing machine
Processing, obtains tubulose powder cored filament material；
2) tubulose powder cored filament material obtained in step 1) preparation of High Speed Electric Arc Spraying coating: is each passed through High Speed Electric Arc Spraying
Two ignition tips of machine power on and carry out surface spraying to target item；
The steel band is H08A mild-carbon steel strip；
Two ignition tips are separately connected the anode and cathode of power supply；
The diameter of the tubulose powder cored filament material is 1~4mm；
The High Speed Electric Arc Spraying machine work when arc voltage be 38V, operating current 180A, compressed air pressure be 0.5~
0.8MPa, spray distance are 170~190mm.
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| CN201610851041.0A CN106282886B (en) | 2016-09-27 | 2016-09-27 | A kind of High Speed Electric Arc Spraying liquid metal ceramic coating and preparation method thereof |
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| CN110016634A (en) * | 2019-05-22 | 2019-07-16 | 合肥科德电力表面技术有限公司 | A kind of reduction high-temp anti-corrosion layer porosity material for arc spraying and its application |
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|---|---|---|---|---|
| CN1528942A (en) * | 2003-10-10 | 2004-09-15 | 北京工业大学 | Technique for preparing metal-base ceramic composite coating by electric are spraying |
| CN1948544A (en) * | 2006-11-13 | 2007-04-18 | 安泰科技股份有限公司 | High corrosion resistant antiwear iron base heat spray coating layer material and its preparation method |
| CN102912277A (en) * | 2012-11-07 | 2013-02-06 | 郑州九环科贸有限公司 | Cored wire for electric arc spraying |
| CN104404427A (en) * | 2014-09-17 | 2015-03-11 | 莱芜职业技术学院 | Preparation of powder cored wire material containing amorphous phase high wear resistant coating |
| CN106119764A (en) * | 2016-08-15 | 2016-11-16 | 合肥科德电力表面技术有限公司 | A kind of preparation method of water smoke cooling arc spraying coating |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4901201A (en) * | 1999-10-25 | 2001-07-03 | Rolls-Royce Corporation | Erosion-resistant coatings for organic matric composites |
| JP6008443B2 (en) * | 2012-07-09 | 2016-10-19 | 東京電力ホールディングス株式会社 | Laminate spray coating formation method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528942A (en) * | 2003-10-10 | 2004-09-15 | 北京工业大学 | Technique for preparing metal-base ceramic composite coating by electric are spraying |
| CN1948544A (en) * | 2006-11-13 | 2007-04-18 | 安泰科技股份有限公司 | High corrosion resistant antiwear iron base heat spray coating layer material and its preparation method |
| CN102912277A (en) * | 2012-11-07 | 2013-02-06 | 郑州九环科贸有限公司 | Cored wire for electric arc spraying |
| CN104404427A (en) * | 2014-09-17 | 2015-03-11 | 莱芜职业技术学院 | Preparation of powder cored wire material containing amorphous phase high wear resistant coating |
| CN106119764A (en) * | 2016-08-15 | 2016-11-16 | 合肥科德电力表面技术有限公司 | A kind of preparation method of water smoke cooling arc spraying coating |
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