CN106191738A - Powder cored filament material and preparation thereof for the preparation high abrasion coating containing amorphous phase - Google Patents
Powder cored filament material and preparation thereof for the preparation high abrasion coating containing amorphous phase Download PDFInfo
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- CN106191738A CN106191738A CN201610554309.4A CN201610554309A CN106191738A CN 106191738 A CN106191738 A CN 106191738A CN 201610554309 A CN201610554309 A CN 201610554309A CN 106191738 A CN106191738 A CN 106191738A
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- China
- Prior art keywords
- powder
- coating
- filament material
- cored filament
- high abrasion
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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
- C23C4/04—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
Abstract
The present invention relates to for the preparation powder cored filament material of high abrasion coating containing amorphous phase, it rolls by employing and pulls out the mixed metal powder that high carbon ferro-chrome powder, FeB powder and ferrovanadium dust form by technique and be combined prepared with ordinary carbon steel steel band.The invention still further relates to a kind of high abrasion coating containing amorphous phase, it prepares by using High Speed Electric Arc Spraying technique to be sprayed on by the powder cored filament material of the present invention on station boiler " four pipes " heating surface surface.This coating has good bond strength, has good wear and corrosion behavior in the range of room temperature to 900 DEG C, it is possible to extend the life-span of station boiler " four pipes ", improves the cost performance of station boiler " four pipes " heating surface protective coating.
Description
Technical field
The invention belongs to barrier material technical field, be specifically related to a kind of high abrasion for preparation containing amorphous phase
The powder cored filament material of coating and preparation and application thereof.
Background technology
The coal resources of China are the abundantest, and primary energy is based on raw coal.As Chinese national economy look-ahead industry
Power industry, heat power station occupies leading position.The thermal power generation of China with coal as main fuel, coal-fired power-station
Generated energy accounts for 3/4ths of gross generation.But the coal quality of China, especially steam coal use low-quality bad
Matter coal, causes the low quality of coal used for station boiler.In fire coal, the decline of quality makes boiler heating surface produce abrasion, dust stratification, knot
The series of problems such as slag, corrosion, heating surface reduces service life, and the phenomenon of the quick-fried leakage of pipeline frequently occurs.Station boiler " four pipes "
Heating surface because of dust stratification, corrode and wear and tear and reveal booster and the boiler tube premature failure that causes, high-temperature oxydation and due to flying dust and not
The carbon granule of combustion affects and causes corrosion and abrasion, becomes the problem that station boiler pole need to solve.
Corrosion and abrasion are all the material loss processes betiding body surface, and the inefficacy of other form is most
Also it is from the beginning of body surface.Therefore, in order to strengthen, boiler water-wall tube is anticorrosive, anti-wear performance, strengthens its surface
Processing and need not renewing pipe is a kind of economical and practical method.Currently used water screen tube hot-dip aluminizing technology, surfacing Ni-W
The method performances under experimental conditions such as alloy technology, brush corrosion-resistant abrasion coating are fine, but effect is the most not satisfactory in practicality.With
Making rapid progress of science and technology, thermal spraying is constantly developed as a kind of new surface strengthening technology, for boiler water wall
Pipe carries out surface Hardening Treatment and provides technical guarantee.
At present, the thermal spraying material that market is protected for station boiler " four pipe " is more, and some thermal spraying materials use
Life-span is long, but expensive, and some thermal spraying materials are cheap, but can not meet wanting of one overhaul time of power plant service life
Ask.It is generally divided into the coating material forming fine and close passivating film from preventing principle angle, forms the coating material of intermetallic compound
Material and the coating material of formation amorphous phase.It is widely used in antioxidation or erosion-resisting Cr alloy at present, it is simply that in surface shape
Become fine and close oxide-film, and for Al and Zn, except forming oxide-film, it is also possible to by the way of negative electrode is sacrificed, protection
Material is not corroded.The coating material of low cost in these materials, the life-span can not meet reality use requirement.With Fe3Al gold
Between genus compound be the hot-spraying coating of representative be the intermetallic compound defining certain content in the coating, improve protection
The antioxidation of coating and erosion-resisting life-span.But for this kind of composite, the technological problems controlling interface is the severeest, logical
Often thinking that the performance of composite is more dependent on technique, single intensity or toughness are referred to by the mixing rule of conventional performance
Mark substantially conforms to, but for complicated performance, nonlinear bipolar value often occurs, and technological level is different, performance
Can fall far short.
Therefore, the problem that presently, there are is that to be badly in need of a kind of cost performance of research and development higher, performance more stable containing amorphous
The powder cored filament material of phase high abrasion coating.
Summary of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, it is provided that one contains for preparation
The powder cored filament material of the high abrasion coating of amorphous phase and preparation and application thereof.The present invention is rolled by employing and pulls out technique by high-carbon chromium iron
The mixed metal powder of end, FeB powder and ferrovanadium dust composition is compound with steel band obtains powder cored filament material.With the powder core of the present invention
Coating prepared by silk material has good bond strength and good wear and corrosion behavior, it is possible to extend station boiler " four pipes "
In the life-span, improve the cost performance of station boiler " four pipes " heating surface protective coating.
To this end, first aspect present invention provides the powder core wire of a kind of high abrasion coating for preparation containing amorphous phase
Material, it uses by mixed metal powder and steel band to roll and pulls out process combining and form, and wherein, described mixed metal powder is total by each component
The composition of weight meter is as follows:
Component a, high carbon ferro-chrome powder 20wt%-25wt%；
Component b, FeB powder 70wt%-75wt%；And
Component c, ferrovanadium dust 2.5wt%-7.5wt%.
In some preferred embodiments, by each total weight of components, the amount of high carbon ferro-chrome powder is 22.5wt%-
25wt%.
In other preferred embodiments, by each total weight of components, the amount of FeB powder is 72.5wt%-75wt%；
Further preferably the amount of FeB powder is 72.5wt%.
In other preferred embodiment, preferably by each total weight of components, the amount of ferrovanadium dust is 5.0wt%-
7.5wt%.
FeB powder, high carbon ferro-chrome powder and ferrovanadium dust used by the present invention is on market the metal dust of maturation and produces
Product.
In some embodiments of the invention, a diameter of 2.0-4.0mm of described powder cored filament material；The most described powder cored filament material
A diameter of 2.0mm.
In other embodiments of the present invention, the mixed metal powder filling rate of described powder cored filament material is in mass
32%-34%.
Second aspect present invention provides the preparation method of a kind of powder cored filament material as described in the first aspect of the invention, bag
Include:
Step A, remixes after respectively high carbon ferro-chrome powder, FeB powder and ferrovanadium dust being carried out drying and processing, obtains
Mixed metal powder；
Step B, is combined mixed-powder with steel band, prepares powder cored filament material.
In some embodiments of the invention, in step, the temperature of described drying and processing is 100-120 DEG C；Preferably institute
The temperature stating drying and processing is 100 DEG C.So can well dehumidify.
In other embodiments of the present invention, the time of described drying and processing is 1-2h；The most described drying and processing
Time is 1h.
In the other embodiment of the present invention, the time of described mixing is 2-3h.
Third aspect present invention provides a kind of high abrasion coating containing amorphous phase, and it is by following element percentage by weight
Than composition:
In some preferred embodiments, in high abrasion coating, the amount of B is 4.9%-5.5% by weight, the most excellent
Selecting the amount of B in high abrasion coating by weight is 4.9%.
In some preferred embodiments, in high abrasion coating, the amount of Cr is 4.2%-5.3% by weight, the most excellent
Selecting the amount of Cr in high abrasion coating by weight is 4.7%-5.3%；
In some preferred embodiments, in high abrasion coating, the amount of C is 0.58%-0.72% by weight, further
In high abrasion coating, the amount of C is 0.65%-0.72% the most by weight.
In some preferred embodiments, in high abrasion coating, the amount of V is 0.6%-1.9% by weight, the most excellent
Selecting the amount of V in high abrasion coating by weight is 1.2%-1.9%.
According to the present invention, described wear-resistant coating is by powder cored filament material as described in the first aspect of the invention or such as the present invention
Powder cored filament material prepared by method described in two aspects is prepared from.
Fourth aspect present invention provides a kind of preparation method of wear-resistant coating as described in third aspect present invention, and it is will
Powder cored filament material as described in the first aspect of the invention or the powder cored filament material that as described in respect of the second aspect of the invention prepared by method are sprayed on
On station boiler " four pipes " heating surface surface, prepare coating.This coating has good bond strength, at station boiler " four pipes "
There is higher anti-wear performance, it is possible to extend the life-span of station boiler " four pipes " under the working condition of heating surface.
According to the present invention, described spraying includes but not limited to High Speed Electric Arc Spraying method.
The present inventor finds through experimental study, uses High Speed Electric Arc Spraying technique spraying preparation coating, trace in coating
The existence of vanadium metal promotes the refinement of crystal grain, is melted to be blown out by compressed air in the short circuit of ignition tip junction from powder cored filament material
Molten drop, is embedded in matrix surface with flat lamellar, and whole process time is the shortest, this from be melted to cooling speed, reach
Form the marginal value of amorphous phase α-Fe (Cr), form the amorphous phase of certain content in the coating, change the microstructure of coating,
Improve the erosive wear resistance of coating.Owing to adding the vanadium metal of trace, increase material cost inconspicuous, but improve coating
Erosive wear resistance is obvious, and cost performance is the highest.
Heretofore described term " high carbon ferro-chrome " refers to that carbon containing is the ferrochrome of 4%-8% in mass.
Coating characterization and the performance test methods of the present invention are as follows:
(1) microscopic appearance of use JEM-6510 type scanning electron microscope (SEM, JEOL) testing coating:
(2) XD-2 type X-ray diffractometer (XRD, Beijing Puxi General Instrument Co., Ltd) testing coating is used
Phase constituent；
(3) use WDW-3100 type universal testing machine (Changchun section is new) according to the combination of GB9796-88 testing coating
Intensity；
(4) microhardness on HV-10 type Vickers hardness instrument (Beijing epoch mountain peak) testing coating surface is used；
The present invention has for the preparation powder cored filament material of high abrasion coating containing amorphous phase and the coating that is made from
Following advantage:
(1) powder cored filament material containing amorphous phase high abrasion coating of the present invention, can be used for the boiler " four in thermal power plant
Pipe " protection of heating surface, it is also possible to for the operating mode that other high temperature corrosions are harsh.
(2) coating of the present invention has good bond strength, has good wear-resisting resistance in the range of room temperature to 900 DEG C
Erosion performance, it is possible to extend the life-span of station boiler " four pipes ", improves the cost performance of station boiler " four pipes " heating surface protective coating
Accompanying drawing explanation
Come below in conjunction with the accompanying drawings the present invention is described in further detail.
Fig. 1 is coating surface microscopic appearance figure prepared by the embodiment of the present invention 2 powder cored filament material electric arc spraying；
Fig. 2 is the XRD figure that the embodiment of the present invention 2 powder cored filament material prepares coating.
Detailed description of the invention
For making the present invention easier to understand, describing the present invention in detail below in conjunction with embodiment and accompanying drawing, these are real
Execute example and only play illustrative effect, it is not limited to the range of application of the present invention.NM specific experiment side in the following example
Method, is generally carried out according to normal experiment method.
Embodiment
Embodiment 1:
The preparation of powder cored filament material: with FeB powder, high carbon ferro-chrome powder and ferrovanadium dust as raw material, first by powder by such as
Lower proportions: high carbon ferro-chrome powder accounts for 25%, FeB powder accounts for 72.5%, and ferrovanadium dust accounts for 2.5%, then by mixed-powder
At 100 DEG C, dry 1h, after drying, mix 2-3h.Finally by rolling the equipment of pulling out, mixed-powder is combined with steel band, prepares diameter
For 2.0mm, mixed metal powder filling rate is the powder cored filament material of 32%-34% in mass.
The preparation of coating: use HVAS to be sprayed on station boiler " four pipes " heating surface surface,
One layer of erosion resistant coating is then defined on heating surface surface.In gained coating, each component and percentage by weight thereof are as follows: B:
4.9%, Cr:5.3%, C:0.72%, V:0.6%, surplus is Fe.
High abrasion coating prepared by the present embodiment is more than 45MPa, the meansigma methods of microhardness with the bond strength of matrix
HV0.3It is 623.
Embodiment 2:
The preparation of powder cored filament material: with FeB powder, high carbon ferro-chrome powder and ferrovanadium dust as raw material, first by powder by such as
Lower proportions: high carbon ferro-chrome powder accounts for 22.5%, FeB powder accounts for 72.5%, and ferrovanadium dust accounts for 5.0%, then by mixed powder
1h is dried at end at 100 DEG C, mixes 2-3h after drying.Finally by rolling the equipment of pulling out, mixed-powder is combined with steel band, prepares straight
Footpath is 2.0mm, and mixed metal powder filling rate is the powder cored filament material of 32%-34% in mass.
The preparation of coating: use HVAS to be sprayed on station boiler " four pipes " heating surface surface,
One layer of erosion resistant coating is then defined on heating surface surface.In gained coating, each component and percentage by weight thereof are as follows: B:
4.9%, Cr:4.7%, C:0.65%, V:1.2%, surplus is Fe.
High abrasion coating prepared by the present embodiment is more than 45MPa, the meansigma methods of microhardness with the bond strength of matrix
HV0.3It is 681.
The coating cross sections microscopic appearance of the present embodiment is as it is shown in figure 1, from figure 1 it appears that the combination of coating and base material
Closely, there is not the defects such as pore, crackle and speckle in interface.The coating of preparation is carried out XRD analysis, result such as Fig. 2 institute
Show.From figure 2 it can be seen that the XRD figure in coating composes 2 θ=45oPlace occurs in that an obvious diffusing scattering peak, and coating is described
Non crystalline structure is defined in deposition process.
Embodiment 3:
The preparation of powder cored filament material: with FeB powder, high carbon ferro-chrome powder and ferrovanadium dust as raw material, first by powder by such as
Lower proportions: high carbon ferro-chrome powder accounts for 20%, FeB powder accounts for 72.5%, and ferrovanadium dust accounts for 7.5%, then by mixed-powder
At 100 DEG C, dry 1h, after drying, mix 2-3h.Finally by rolling the equipment of pulling out, mixed-powder is combined with steel band, prepares diameter
For 2.0mm, mixed metal powder filling rate is the powder cored filament material of 32%-34% in mass.
The preparation of coating: use HVAS to be sprayed on station boiler " four pipes " heating surface surface,
One layer of erosion resistant coating is then defined on heating surface surface.In gained coating, each component and percentage by weight thereof are as follows: B:
4.9%, Cr:4.2%, C:0.58%, V:1.9%, surplus is Fe.
High abrasion coating prepared by the present embodiment is more than 45MPa, the meansigma methods of microhardness with the bond strength of matrix
HV0.3It is 710.
After testing, the coating in above-described embodiment has good bond strength, has good in the range of room temperature to 900 DEG C
Good wear and corrosion behavior, it is possible to extend the life-span of station boiler " four pipes ", improves station boiler " four pipes " heating surface and prevents
Protect the cost performance of coating.
It should be noted that, embodiment described above is only used for explaining the present invention, be not intended that the present invention is any
Limit.By referring to exemplary embodiments, invention has been described, it should be appreciated that word wherein used is descriptive
With explanatory vocabulary rather than limited vocabulary.Within the scope of the claims the present invention can be made by regulation
Amendment, and in without departing substantially from scope and spirit of the present invention, the present invention is revised.Although the present invention described in it relates to
And specific method, material and embodiment, it is not intended that the present invention is limited to wherein disclosed particular case, on the contrary, this
Bright can be extended to other all methods and applications with identical function.
Claims (10)
1. contain a powder cored filament material for the high abrasion coating of amorphous phase for preparation, it is used with steel band by mixed metal powder
Rolling and pull out process combining and form, wherein, described mixed metal powder is as follows by the composition of each total weight of components:
High carbon ferro-chrome powder 20wt%-25wt%；
FeB powder 70wt%-75wt%；And
Ferrovanadium dust 2.5wt%-7.5wt%.
Powder cored filament material the most according to claim 1, it is characterised in that by each total weight of components, high carbon ferro-chrome powder
Amount is 22.5wt%-25wt%；Preferably by each total weight of components, the amount of FeB powder is 72.5wt%-75wt%；Preferably press
Each total weight of components, the amount of ferrovanadium dust is 5.0wt%-7.5wt%.
Powder cored filament material the most according to claim 1 and 2, it is characterised in that a diameter of 2.0-of described powder cored filament material
4.0mm, the mixed metal powder filling rate of the most described powder cored filament material is 32%-34% in mass.
4. a preparation method for the powder cored filament material as described in any one in claim 1-3, including:
Step A, remixes after respectively high carbon ferro-chrome powder, FeB powder and ferrovanadium dust being carried out drying and processing, is mixed
Metal dust；
Step B, is combined mixed-powder with steel band, prepares powder cored filament material.
Preparation method the most according to claim 4, it is characterised in that in step, the temperature of described drying and processing is
100-120℃。
6. according to the preparation method described in claim 4 or 5, it is characterised in that the time of described drying and processing is 1-2h；Preferably
The time of described mixing is 2-3h.
7. containing a high abrasion coating for amorphous phase, it is made up of by weight percentage following element:
High abrasion coating the most according to claim 7, it is characterised in that in high abrasion coating, the amount of B is by weight
4.9%-5.5%；In high abrasion coating, the amount of Cr is 4.2%-5.3% the most by weight, the highest
In wear-resistant coating, the amount of Cr is 4.7%-5.3%；In high abrasion coating, the amount of C is 0.58%-0.72% the most by weight, enters
In one step high abrasion coating the most by weight, the amount of C is 0.65%-0.72%；V in high abrasion coating the most by weight
Amount is 0.6%-1.9%, and in high abrasion coating, the amount of V is 1.2%-1.9% the most by weight.
9. according to the high abrasion coating described in claim 7 or 8, it is characterised in that described wear-resistant coating is by such as claim
The powder cored filament material system that in 1-3 prepared by powder cored filament material described in any one or method as described in any one in claim 4-6
For forming.
10. a preparation method for wear-resistant coating as described in any one in claim 7-9, including by such as claim 1-3
Powder cored filament material prepared by powder cored filament material described in middle any one or method as described in any one in claim 4-6 is sprayed on
On boiler blasting heating surface surface, prepare coating；The most described spraying includes High Speed Electric Arc Spraying method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554309.4A CN106191738A (en) | 2016-07-14 | 2016-07-14 | Powder cored filament material and preparation thereof for the preparation high abrasion coating containing amorphous phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554309.4A CN106191738A (en) | 2016-07-14 | 2016-07-14 | Powder cored filament material and preparation thereof for the preparation high abrasion coating containing amorphous phase |
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| Publication Number | Publication Date |
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| CN106191738A true CN106191738A (en) | 2016-12-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497977A (en) * | 2008-01-31 | 2009-08-05 | 北京赛亿表面工程技术有限公司 | High chromium aluminum type high wear resistant arc spraying powder core wire material |
| CN101497978A (en) * | 2008-01-31 | 2009-08-05 | 北京赛亿表面工程技术有限公司 | Powder core wire material for high chrome molybdenum alloy arc spraying |
| US20100227180A1 (en) * | 2009-03-05 | 2010-09-09 | Babcock-Hitachi Kabushiki Kaisha | Coating material for metallic base material surface |
| 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 |
-
2016
- 2016-07-14 CN CN201610554309.4A patent/CN106191738A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497977A (en) * | 2008-01-31 | 2009-08-05 | 北京赛亿表面工程技术有限公司 | High chromium aluminum type high wear resistant arc spraying powder core wire material |
| CN101497978A (en) * | 2008-01-31 | 2009-08-05 | 北京赛亿表面工程技术有限公司 | Powder core wire material for high chrome molybdenum alloy arc spraying |
| US20100227180A1 (en) * | 2009-03-05 | 2010-09-09 | Babcock-Hitachi Kabushiki Kaisha | Coating material for metallic base material surface |
| 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 |
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