CN108004496A - A kind of iron-based coating material and its coating production for paper-making drying cylinder - Google Patents
A kind of iron-based coating material and its coating production for paper-making drying cylinder Download PDFInfo
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- CN108004496A CN108004496A CN201711277485.9A CN201711277485A CN108004496A CN 108004496 A CN108004496 A CN 108004496A CN 201711277485 A CN201711277485 A CN 201711277485A CN 108004496 A CN108004496 A CN 108004496A
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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
-
- 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
- C23C4/131—Wire arc spraying
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- Engineering & Computer Science (AREA)
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- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
It is a kind of for the iron-based coating material of paper-making drying cylinder and its preparation method of coating, belong to the field of thermal spray in Materials Processing Engineering.The powder core composition quality percent ranges are as follows：Hafnium metal powfer：45 54%；Ferro-boron powder：13 33%；Rare earth silicon iron powder：5 20%；Boron carbide powder：8 20%；Electrolytic manganese powder：2 9%.Silk material is rolled into after mixing by certain mass ratio.Band used in powder cored filament material crust is 430 stainless steel bands；Powder cored filament material filling rate：28 32%.When preparing the iron-based coating with higher heat-conductivity with electric arc spraying, spraying coating process is taken：28 34V of voltage；180 220A of electric current；180 220mm of spray distance；0.4 0.6MPa of compressed air pressure.The present invention can obtain the iron-based coating that thermal conductivity is higher, surface roughness is relatively low and hardness is higher.
Description
Technical field
The invention belongs to the field of thermal spray in Materials Processing Engineering, it is related to the preparation method of a kind of powder cored filament material, coating,
The preparation method of more particularly to a kind of powder cored filament material and its coating that high heat conductance iron-based coating is prepared for electric arc spraying, the hair
It is bright to can be used for the associated heat transfer components such as paper-making drying cylinder.
Background technology
With the raising of national economy, society is increasing for the demand of paper, and modern paper had become important already
Basic industries.Since 2002, China has exceeded Japan became second-biggest-in-the-world papermaking state.According to China's pulp manufacture work
The long-term plan of industry, the paper and Board production in China will be up to 100,000,000 tons to 2020, and the paper yield to China in 2012 is
8694.22 ten thousand tons, so domestic paper industry still has the space enhanced production capacities.But modern paper industry is highly energy-consuming trade,
Only in 2007, paper industry energy-consuming is up to 3443.68 ten thousand tons of standard coals, accounts for the 2% of industrial energy consumption figure, accounts for the whole nation
The 1.4% of total energy consumption, and paper industry industrial output value only accounts for the 0.59% of the national gross output value, is high consumption low yield.
Therefore, the efficiency of energy utilization for improving paper-making industry has caused domestic paper industry and the extensive concern of relevant department.According to statistics, paper
The cost of equipment of machine drying section accounts for the 50% of whole paper machine power consumption, its steam consumption accounts for the production cost of paper
5% -15%, it is the component of highly energy-consuming in paper making equipment.And paper-making drying cylinder is as most popular drying section in paper industry
Part, positive effect can be played to the energy-saving and emission-reduction in paper-making process by improving its heat transfer efficiency.
At present, some metal coating heat transfer efficiencys that industrial circle uses are not high, and which results in many industrial and minerals, enterprise to use
Rise in the energy consumption of heat transfer, and this scientific development objective obviously yet with raising efficiency, saving energy resources is not inconsistent.From section
Can environmental protection, the target that reduces cost set out, it is ensured that the wear-resisting of heat-exchanging part, corrosion resistance requirement, will more focus on lifting its biography
Hot property.Therefore, study the heat transfer property changing rule of protective coating, protective coating of the exploitation with preferable heat transfer property with
Very strong realistic meaning.
In recent years, the research for metal based coating being prepared using plasma spray technology has been unfolded, detonation flame spraying, supersonic flame
The complex process equipments such as spraying, plasma spraying, it is of high cost, it is not suitable for large area site operation in situ, and spray former material feed powder
Body prepares complicated.Easy to operate and electric arc spraying is because simple with equipment, prepared by sprayed on material convenient, economical, it is possible to achieve former
The advantages that position large area spraying, it has also become prepare the main preparation methods of thermally sprayed coating in practical application area.
Through retrieval, have no at present and the patent report with higher heat-conductivity iron-based coating correlation technique is prepared using electric arc spraying
Road.
The content of the invention
For the studies above background, it is an object of the invention to provide a kind of high heat conductance and there are excellent mechanical performances
Iron-based coating material and its coating preparation method.
A kind of powder cored filament material that can be used in electric arc spraying and prepare high heat conductance iron-based coating, the powder core composition quality
Percent ranges are as follows：Hafnium metal powfer：45-54%；Ferro-boron powder：13-33%；Rare earth silicon iron powder：5-20%；Boron carbide
Powder：8-20%；Electrolytic manganese powder：2-9%.Band used in powder cored filament material crust is stainless steel belt；Powder cored filament material filling rate：
28-32%.
Band used in the powder cored filament material crust is 430 stainless steel bands.
It is preferred that the powder cored filament material drug core component mass percentage scope is：Hafnium metal powfer：45-48%；Ferro-boron powder：
20-26%；Rare earth silicon iron powder：12-18%；Boron carbide powder：12-16%；Electrolytic manganese powder：2-7%.
A kind of iron with higher heat-conductivity and relatively low surface roughness is prepared using the above-mentioned powder cored filament material of the present invention
Base coating, it is characterised in that include the following steps：
Step 1, powder cored filament material component configuration medicine core powder described in accordance with the claim 1, rolling, finally obtains a diameter of
The powder cored filament material of 2.0mm；
Step 2, pretreatment is carried out to metal base surface and removes surface film oxide and dirt, then base material is sprayed
Sand processing；
Step 3, iron-based coating is prepared using electric arc spraying process, spraying parameter is：Voltage 28-32V；Electric current
180-220A；Spray distance：180-220mm；Compressed air pressure：0.4-0.6MPa.
A kind of iron-based coating with higher heat-conductivity prepared using the above method, this coating can be applied to papermaking baking
The relevant heat transfer component such as cylinder.
It is a kind of using arc spray process prepare with higher heat-conductivity iron-based coating possessed by performance be to be mainly
What its own component was determined.It acts as：
Rare earth element：Rare earth has nitrogen and oxygen extremely strong affinity, can protect boron in spraying process from scaling loss, increase
Hard phase formation element in coating is added, this increases the hardness and wearability of coating, rare earth can also to a certain extent
Enough refine the tissue of coating.
Fe and Cr elements：Fe is basic element, and Cr elements can efficiently reduce coating oxidation and increase the corrosion stability of coating.
B, C, Si element：Small size atom, is conducive to improve the amorphous formation ability of alloy system and the hardness of coating, B
Compared with the Gibbs free energy of Si generation oxides relatively low, therefore generate oxide prior to metallic element, add B, Si can show
Write the quantity for reducing oxide in coating.
Mn elements：Improve coating toughness.
Each element in coating is all conventional element, and the wearability and heat transfer property of coating are by each element
What synergistic effect determined, be not what single-element determined, nor can be obtained by only by limited number of time experiment.
A kind of powder cored filament material and its coating production for being used to prepare high heat conductance iron-based coating.The powder cored filament material is through electricity
For arc spraying technology after material surface prepares coating, coating has higher thermal conductivity and preferable relative wear resistance.
Compared with conventional coating, iron-based heat transfer coating has the characteristics that the present invention：
1st, coating texture is fine and close, has higher thermal conductivity and relatively low surface roughness.
2nd, the electric arc spraying process that the present invention uses is easy to operate, and prepared by sprayed on material convenient, economical, it is possible to achieve in situ
The advantages that large area sprays, it is minimum compared to other spraying method costs.
3rd, the alloy powder cost added in the iron-based powder cored filament material in the present invention is relatively low.
4th, iron-based coating prepared by the present invention has preferable microstructure features.The present invention is for improving the phases such as paper-making drying cylinder
The heat transfer efficiency of the heat transfer component of pass is a kind of more suitable solution.
Brief description of the drawings
3 coating X ray diffracting spectrum of Fig. 1 embodiments；
The metallograph of 3 coating of Fig. 2 embodiments；
3 Coating Surface Roughness of Fig. 3 embodiments；
Embodiment
Below by embodiment the substantive distinguishing features and remarkable advantage that the present invention is furture elucidated, the present invention only limits to by no means
In the embodiment stated.
Same section is as described below in each embodiment：
It is 12 × 0.3mm's (width 12mm, thickness 0.3mm) that 1. powder cored filament material crust, which selects specification, in embodiment
430 stainless steel bands, powder cored filament material drug core component illustrate in embodiment, by existing powder cored filament material rolling technique, by powder
Core-wire material is passed through by road drawing tube reducing to 2.0mm；
2. spraying matrix is Q235 stainless steel plates；
3. embodiment is 29# rare earth ferrosilicons with rare earth ferrosilicon added in comparative example.
Embodiment 1
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：45%；Ferro-boron powder：33%；Rare earth silicon iron powder：
5%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：32%, roll powder cored filament material.Spray parameters used in prepares coating：
Voltage 30V；Electric current 200A；Spray distance 200mm；Compressed air pressure 0.5-0.6MPa.
Embodiment 2
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：45%；Ferro-boron powder：28%；Rare earth silicon iron powder：
10%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：32%, roll powder cored filament material.Prepares coating spraying ginseng used
Number：Voltage 30V；Electric current 200A；Spray distance 200mm；Compressed air pressure 0.5-0.6MPa.
Embodiment 3
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：45%；Ferro-boron powder：22%；Rare earth silicon iron powder：
16%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：32%, roll powder cored filament material.Prepares coating spraying ginseng used
Number：Voltage 30V；Electric current 200A；Spray distance 200mm；Compressed air pressure 0.5-0.6MPa.
Embodiment 4
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：45%；Ferro-boron powder：18%；Rare earth silicon iron powder：
20%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：32%, roll powder cored filament material.Prepares coating spraying ginseng used
Number：Voltage 28V；Electric current 180A；Spray distance 200mm；Compressed air pressure 0.5-0.6MPa.
Embodiment 5
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：50%；Ferro-boron powder：17%；Rare earth silicon iron powder：
16%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：32%, roll powder cored filament material.Prepares coating spraying ginseng used
Number：Voltage 28V；Electric current 180A；Spray distance 200mm；Compressed air pressure 0.5-0.6MPa.
Embodiment 6
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：54%；Ferro-boron powder：13%；Rare earth silicon iron powder：
16%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：32%, roll powder cored filament material.Prepares coating spraying ginseng used
Number：Voltage 30V；Electric current 200A；Spray distance 200mm；Compressed air pressure 0.5-0.6MPa.
Embodiment 7
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：45%；Ferro-boron powder：22%；Rare earth silicon iron powder：
16%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：28%, roll powder cored filament material.Prepares coating spraying ginseng used
Number：Voltage 32V；Electric current 220A；Spray distance 180mm；Compressed air pressure 0.4-0.5MPa.
Embodiment 8
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：45%；Ferro-boron powder：22%；Rare earth silicon iron powder：
16%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：30%, roll powder cored filament material.Prepares coating spraying ginseng used
Number：Voltage 32V；Electric current 220A；Spray distance 220mm；Compressed air pressure 0.5-0.6MPa.
Comparative example 1
Powder cored filament material drug core component mass percent is：Hafnium metal powfer：40%；Ferro-boron powder：10%；Rare earth silicon iron powder：
0%；Boron carbide powder：13%；Electrolytic manganese powder：4%；Surplus is reduced iron powder.Filling rate：32%, roll powder cored filament material.Prepare and apply
Spray parameters used in layer：Voltage 28V；Electric current 180A；Spray distance 220mm；Compressed air pressure 0.5-0.6MPa.
Comparative example 2
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：40%；Ferro-boron powder：41%；Rare earth silicon iron powder：
2%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：32%, roll powder cored filament material.Spray parameters used in prepares coating：
Voltage 30V；Electric current 200A；Spray distance 200mm；Compressed air pressure 0.5-0.6MPa.
Comparative example 3
The mass percent of powder cored filament material drug core component is：Hafnium metal powfer：58%；Ferro-boron powder：3%；Rare earth silicon iron powder：
22%；Boron carbide powder：13%；Electrolytic manganese powder：4%.Filling rate：32%, roll powder cored filament material.Spray parameters used in prepares coating
Voltage 30V；Electric current 200A；Spray distance 200mm；Compressed air pressure 0.5-0.6MPa.
Coating performance detection is as described below prepared by each embodiment and comparative example：
1. coating prepared by embodiment and comparative example is carried out in micro-hardness testing, digital micro- hard using HXD-1000
Degree meter, load 50g, duration 10s, take 10 microhardness average values；
2. coating prepared by pair embodiment and comparative example carries out room temperature thermal conductivity test, using TC-7000H type laser thermal conductivities
Instrument.Test parameter is as follows：Temperature：Room temperature；Coating sample surface has metallic luster by sand paper polishing, and specimen size is diameter
Ф 10mm, thickness 1.0mm；The thermal conductivity (unit W/mK) of coating is asked by α (thermal diffusion coefficient) × Cp (thermal capacitance) × ρ (density)
, wherein α and Cp are measured by TC-7000H type laser conductometers, and ρ is measured by Archimedes's drainage.
3. coating prepared by pair embodiment and comparative example carries out surface roughness test, thick using Perthometer M1 types
Rugosity instrument measures the surface roughness of coating.L1=5.600mm, λ c=0.800, n=5,10 points of measurement take it flat
Average.
The performances such as surface roughness, microhardness, thermal conductivity by considering embodiment and comparative example coating, implement
Example and the surface roughness, microhardness, thermal conductivity changing rule of comparative example coating are shown in Table 1, to powder cored filament material drug core component into
Row successive optimization, final obtain have higher heat-conductivity and the iron-based coating compared with low surface roughness.The X of 3 coating of embodiment is penetrated
Ray diffraction diagram spectrum is shown in Fig. 1, and the section metallograph of 3 coating of embodiment is shown in Fig. 2, and the surface roughness of 3 coating of embodiment is shown in Fig. 3,
The thermal conductivity of 3 coating of embodiment is shown in Table 1.
The porosity of 1 embodiment of table and comparative example, microhardness and thermal conductivity result
2 coating density of table, thermal capacitance, thermal diffusion coefficient and thermal conductivity result
Claims (6)
1. a kind of iron-based powder cored filament material for paper-making drying cylinder, powder cored filament material wraps up iron(-)base powder using stainless steel belt,
The filling rate of powder cored filament material is 28-32%, it is characterised in that：The iron(-)base powder added includes following mass percentage
Material：Hafnium metal powfer：45-54%；Ferro-boron powder：13-33%；Rare earth silicon iron powder：5-20%；Boron carbide powder：8-20%；
Electrolytic manganese powder：2-9%.
2. powder cored filament material according to claim 1, it is characterised in that：Band used in the powder cored filament material crust is 430 not
Become rusty steel band.
3. powder cored filament material according to claim 1, it is characterised in that：The iron(-)base powder component middle rare earth silicon added
Weight of iron percentage composition is 12-18%.
4. the method for any one of them powder cored filament material prepares coating using claim 1-3, it is characterised in that including as follows
Step：
Step 1, medicine core powder is configured, rolling, finally obtains powder cored filament material；
Step 2, pretreatment is carried out to metal base surface and removes surface film oxide and dirt, then metallic matrix is sprayed
Sand processing；
Step 3, processed matrix in step 2 is used into arc spray process prepares coating, spraying parameter is：Voltage
28-34V；Electric current 180-220A；Spray distance：180-220mm；Compressed air pressure：0.4-0.6MPa.
5. according to the method for claim 4, it is characterised in that the metallic matrix in step 2 is Q235 stainless steel and iron base matrixes.
6. according to the method for claim 4, it is characterised in that the spraying parameter described in step 3 is set as：Voltage 30-
32V；Electric current 180-220A；Spray distance：200mm；Compressed air pressure：0.5-0.6MPa.
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| CN201711277485.9A CN108004496A (en) | 2017-12-06 | 2017-12-06 | A kind of iron-based coating material and its coating production for paper-making drying cylinder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711277485.9A CN108004496A (en) | 2017-12-06 | 2017-12-06 | A kind of iron-based coating material and its coating production for paper-making drying cylinder |
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Citations (5)
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|---|---|---|---|---|
| CN101545088A (en) * | 2009-05-04 | 2009-09-30 | 吉林大学 | Iron-based flux-cored electric arc spray-melting wire |
| CN101619432A (en) * | 2009-06-19 | 2010-01-06 | 北京工业大学 | Powered core coil for spraying low alloy quantity Fe-base amorphous alloy coating by electric arc |
| CN102703849A (en) * | 2012-05-21 | 2012-10-03 | 北京工业大学 | Cored wire for preparing FeCrB coating through electric arc spraying and coating preparation method |
| CN103042317A (en) * | 2012-12-28 | 2013-04-17 | 北京工业大学 | Alloy powder material for Fe-based nonmagnetic cladding layer and cladding layer preparing method |
| CN105648384A (en) * | 2016-01-14 | 2016-06-08 | 北京工业大学 | Cored wire used for preparing iron-based coating and coating preparation method of cored wire |
-
2017
- 2017-12-06 CN CN201711277485.9A patent/CN108004496A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545088A (en) * | 2009-05-04 | 2009-09-30 | 吉林大学 | Iron-based flux-cored electric arc spray-melting wire |
| CN101619432A (en) * | 2009-06-19 | 2010-01-06 | 北京工业大学 | Powered core coil for spraying low alloy quantity Fe-base amorphous alloy coating by electric arc |
| CN102703849A (en) * | 2012-05-21 | 2012-10-03 | 北京工业大学 | Cored wire for preparing FeCrB coating through electric arc spraying and coating preparation method |
| CN103042317A (en) * | 2012-12-28 | 2013-04-17 | 北京工业大学 | Alloy powder material for Fe-based nonmagnetic cladding layer and cladding layer preparing method |
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Application publication date: 20180508 |