CN106119663A - Intermediate zone inner surface alloy powder, preparation and coating thereof on cement rotary kiln - Google Patents
Intermediate zone inner surface alloy powder, preparation and coating thereof on cement rotary kiln Download PDFInfo
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- CN106119663A CN106119663A CN201610677329.0A CN201610677329A CN106119663A CN 106119663 A CN106119663 A CN 106119663A CN 201610677329 A CN201610677329 A CN 201610677329A CN 106119663 A CN106119663 A CN 106119663A
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- rotary kiln
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 104
- 239000000956 alloy Substances 0.000 title claims abstract description 104
- 239000000843 powder Substances 0.000 title claims abstract description 94
- 239000004568 cement Substances 0.000 title claims abstract description 60
- 238000000576 coating method Methods 0.000 title claims abstract description 51
- 239000011248 coating agent Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 42
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 20
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 20
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 229910052796 boron Inorganic materials 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 64
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 33
- 229910052786 argon Inorganic materials 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 28
- 238000002844 melting Methods 0.000 claims description 27
- 230000008018 melting Effects 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 21
- 238000012387 aerosolization Methods 0.000 claims description 20
- 239000011651 chromium Substances 0.000 claims description 20
- 239000011572 manganese Substances 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000000889 atomisation Methods 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 9
- 229910017052 cobalt Inorganic materials 0.000 claims description 9
- 239000010941 cobalt Substances 0.000 claims description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 238000010288 cold spraying Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims 2
- 239000003595 mist Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 239000006104 solid solution Substances 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 description 9
- 238000005507 spraying Methods 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000498 ball milling Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000007751 thermal spraying Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000004372 laser cladding Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- -1 kirsite Inorganic materials 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004153 renaturation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- B22F1/0003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
- C23C24/085—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/087—Coating with metal alloys or metal elements only
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses intermediate zone inner surface alloy powder and preparation method thereof on a kind of cement rotary kiln, and the coating prepared with described powder body material；The chemical composition of powder body material includes by weight percentage: Fe:30 35%, Co:15 20%, Cr:15 20%, Mn:15 20%, Ni:15 20%, B:0.004 0.008%.Intermediate zone inner surface alloy powder sphericity height on cement rotary kiln, good fluidity in the present invention, oxygen content is low, tap density is high, component is homogeneous, be the solid solution phase composition with simple face-centred cubic structure, described preparation method is that one-step method environmental pollution is little, overcomes the shortcomings such as two step method step is complicated, energy consumption is high；Utilize cold spray process to obtain intermediate zone coating on inner surface on cement rotary kiln and there is the corrosion resistance of excellence.
Description
Technical field
The present invention relates to metal powder material and material surface processes and reinforcement technique field, particularly relate to a kind of cement and return
Intermediate zone inner surface alloy powder and preparation method thereof on rotary kiln, and the coating prepared with it.
Background technology
The cylinder of cement rotary kiln is the basic components that equipment high efficiency runs, and its material is substantially ordinary steel, under high temperature
Generally there is high temperature oxidation and corrosion, produce oxide layer；Production process additionally contains in cement kiln atmosphere SO2、Cl、K2O、Na2O
Etc. harmful components, cylinder also can be produced corrosion, especially at upper filter bag without kliner coating region (about 25-40m, each kiln type is different),
And the corrosion of this part cylinder is more serious, change refractory brick surface has layer of oxide layer every time.Therefore carry out cylinder of rotary kiln
Maintenance work, is especially effectively treated as present important technological problems to what equipment barrel was corroded.For cement rotary kiln
The more serious position of upper filter bag corrosion, resistance to sudden heating is good, wearability is good in research and development, antioxidation, resistance to villaumite pitting also
And easy construction, cost-effective coating are extremely urgent.
Multicomponent high-entropy alloy is a kind of brand-new alloy body grown up on the basis of block amorphous alloy in recent years
System, breach the conventional alloys design concept with one or both elements as major components, by be not less than 5 kinds of essential elements according to
Deng atomic ratio or close to etc. atomic ratio alloy, and the total mole number ratio of the molal quantity of each metallic element and this alloy
Between 5-35%.Alloying element increases the high entropic effect of generation, and slow spreading effect, lattice distortion effect and cocktail are mixed
Closing effect makes crystal be easily formed simple body-centered cubic (bcc) or simple face-centred cubic structure (fcc), and may be with intergranular
Compound and nanocrystalline, thus reach solution strengthening, precipitation strength and dispersion-strengthened effect.Can by alloying component optimization design
Make high-entropy alloy have bigger advantage than conventional alloys in performance, as high intensity, high rigidity, high corrosion-resistant, high-fire resistance,
The characteristics such as special electricity, magnetic property.Multicomponent high-entropy alloy is utilized to have higher fusing point, hardness, antiwear property, anti-corruption
The many merits such as erosion ability, oxidation-resistance property, by its plated film to metal base surface, form high-entropy alloy thin film, then can
Good progradation is played in development to material.Many researcheres have done a lot of trial for the advantage of high-entropy alloy coating,
There is high rigidity, high heat-resisting, corrosion-resistant and special electricity, magnetic as used laser melting and coating technique to develop on low cost iron surface
FeCoNiCrAl Deng Good All-around Property2The high-entropy alloy coating of Si and 6FeNiCoCrAlTiSi (Zhang H, He Y Z,
Pan Y,et al.Phase selection,microstructure and properties of laser rapidly
solidified FeCoNiCrAl2Si coating[J].Intermetallics,2011,19(8):1130-1135)；Use
Laser melting and coating technique is prepared for TiVCrAlSi high-entropy alloy coating on Ti-6A1-4V alloy substrate surface, and this coating has bcc
Solid solution structure and a small amount of (Ti, V)5Si3Second phase (Huang C, Zhang Y Z, Vilar R.Microstructure
characterization of laser clad TiVCrAlSi high entropy alloy coating on Ti-
6Al-4V substrate[J].Advanced Materials Research,2010,154-155:621-625).But due to
In premixing high-entropy alloy powder between different types of metallic element and and matrix between density, fusing point, specific heat and expansion
The thermophysical property such as coefficient there are differences, and is directly applied to the sufacing such as Laser cladding, thermal spraying and is on the one hand difficult to
Production and application requirement cannot be met to the uniform coating of composition, the Forming Quality of coating and surface continuity；On the other hand it is being coated with
During covering, collective is to the dilution of coating and the scaling loss of element itself, and the alloy coat actually obtained is the most nominal
High-entropy alloy category.
Chinese patent CN103394685B discloses a kind of Alloyapplication for preparing high-entropy alloy coating and melts in laser
On the one hand the sufacings such as multiple, thermal spraying are difficult to obtain the uniform coating of composition, the Forming Quality of coating and surface continuity without
Method meets production and application requirement；On the other hand at powder and its preparation method and application: this method weighs granularity not the most in proportion
More than 200 mesh and not less than the 300 various material powders of purpose, it is placed in mortar grinding 1～3h and is allowed to be sufficiently mixed, then at ferrum
It is modified that substrate surface carries out laser melting coating；University Of Tianjin application CN104141085A, CN104141084A and
The a series of patent of CN105401042A is the most all the method first using the various mixed powder of mortar grinder to prepare alloy powder, then
The method utilizing laser melting coating on different matrixes prepares different coatings.The raw material that on the one hand this method is used is all metal
Powder body, price is expensive relative to respective alloy powder body and powder body amount of oxidation is higher；On the other hand use mortar production efficiency low, uncomfortable
Close large-scale commercial production, simultaneously because the thermophysical property such as the density of different metal element there are differences, it is impossible to completely
Mix homogeneously, so that the coating quality of post laser cladding and surface continuity cannot meet production and application requirement.
Chinese patent CN1033290404A discloses a kind of laser melting coating high-entropy alloy powder and high-entropy alloy coating
Preparation method: this method by required various metal-powders in ball mill in Ar gas atmosphere under the speed of 250-500 rev/min ball
Mill 3-10h prepares prealloy powder body, is then sifted out, by sieving machine, the finished powder that particle size range is 140～320 mesh, at CO2Gao Gong
The mode using synchronous powder feeding system under rate laser instrument carries out multiple tracks cladding in 45 steel matrix；Chinese patent CN104841930A is open
For 3D print alloy powder and apply its prepare the method for high-entropy alloy coating also be use ball milling various raw materials are mixed
Close uniformly, then use laser selective sintering process to prepare high-entropy alloy coating at matrix surface；Same Chinese patent
CN105401038A is also to use ball-milling method first to prepare alloy powder, the method system then using laser melting coating on grinding tool steel surface
Standby coating.Above-mentioned each patent is all to use ball-milling method to prepare the uniform of high-entropy alloy prealloy powder body, energy consumption height and powder body component
Property still need to be improved further, the raw material used is the most all metal-powder, equally exists that price, amount of oxidation are more high to be lacked
Point.
Shenyang University of Technology application a series of patents CN104646660A, CN104651828A, CN104561990A,
The alloy powder that CN104550901A, CN104607631A and CN104561992A relate to, is all by the metal of equimolar ratio
Powder body or metal-powder grind 2～5h gained in ball milling or mortar with non-metallic powder in planetary ball mill, then adopt
High-entropy alloy-base composite material modified layer is prepared with laser emission alloyage process.Above-mentioned patent system is for high-entropy alloy prealloy
Powder body equally exists aforesaid various shortcoming.
Chinese patent CN104561878A discloses a kind of spraying high-entropy alloy powder and preparation method thereof, composite
And preparation method thereof: this patent uses vacuum melting furnace melting high-entropy alloy casting rod-Self comsuming electrode atomized two step method powder process, so
Made high-entropy alloy powder is sprayed to the matrix surfaces such as aluminium alloy, magnesium alloy, kirsite, copper alloy and steel by rear employing spray gun
Prepare high-entropy alloy coating.This method utilizes two step method (first preparing high-entropy alloy ingot casting, then passing through powder by atomization) to prepare
It is thin that the high-entropy alloy parent surface that alloy powder, step complexity, energy consumption height, and the first step prepare is easily formed one layer of oxide
Film.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes intermediate zone inner surface on a kind of cement rotary kiln and uses
Alloy powder and preparation method thereof, and the coating prepared with it, described alloy powder sphericity height, good fluidity, oxygen content
Low, tap density is high, component is homogeneous, be have simple face-centred cubic structure solid solution phase composition；Preparation method environmental pollution
Little, step is simple, energy consumption is low；Gained coating corrosion resistance is good.
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln that the present invention proposes, its chemical composition by weight hundred
Proportion by subtraction includes: Fe:30-35%, Co:15-20%, Cr:15-20%, Mn:15-20%, Ni:15-20%, B:0.004-
0.008%.
Preferably, its chemical composition includes by weight percentage: Fe:33.2%, Co:17.4%, Cr:15.4%, Mn:
16.1%, Ni:17.892%, B:0.008%.
The preparation method of intermediate zone inner surface alloy powder on a kind of described cement rotary kiln that the present invention proposes, including
Following steps:
S1, weigh ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy by proportioning, by fusing point order from low to high
It is sequentially added in medium frequency induction melting furnace, is evacuated to 1-1.5 × 10-3MPa, is then charged with argon, argon pressure be 1 big
Under conditions of air pressure, melting 40-70min obtains metal liquid；
S2, metal liquid is sent into tundish, then in nozzle enters atomization plant, carry out aerosolization and obtain described water
Intermediate zone inner surface alloy powder on mud rotary kiln.
Preferably, in S2, metal liquid sends into tundish by mozzle, and the temperature of mozzle is 650-670 DEG C.
Preferably, in S2, metal liquid is 8-12Kg/min by the flow velocity of nozzle.
Preferably, in S2, during aerosolization, the pressure of aerosolization is 3-4MPa, and the gas used is argon
Gas, and the flow velocity of argon is 280-320m/s.
Preferably, in S2, also include cooling down product after aerosolization terminates, be then 1.1 atmospheric pressure at pressure
Nitrogen protection under sieve, make the particle diameter of product between-200～600 mesh, obtain on described cement rotary kiln in intermediate zone
Surface alloy powder.
Preferably, the preparation method of intermediate zone inner surface alloy powder on described cement rotary kiln, comprise the following steps:
S1, weigh ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy by proportioning, by fusing point order from low to high
It is sequentially added in medium frequency induction melting furnace, is evacuated to 1.2 × 10-3MPa, is then charged with argon, is 1 air at argon pressure
Under conditions of pressure, melting 50min obtains metal liquid；
S2, metal liquid is sent into tundish by mozzle, and the temperature of mozzle is 660 DEG C, then enters through nozzle
Entering and carry out aerosolization in atomization plant, wherein, metal liquid is 10Kg/min by the flow velocity of nozzle, and the pressure of aerosolization is
3.5MPa, the gas used is argon, and the flow velocity of argon is 300m/s；Product is cooled down, then pressure be 1.1 big
Sieve under the protection of the nitrogen of air pressure, make the particle diameter of product between-200～600 mesh, obtain transition on described cement rotary kiln
Band inner surface alloy powder.
Intermediate zone coating on inner surface on a kind of cement rotary kiln that the present invention proposes, on cement rotary kiln in intermediate zone
Surface, uses intermediate zone inner surface alloy powder low pressure cold spraying on described cement rotary kiln to form, wherein, sprays in low pressure cold
During painting, spray distance is 10-30cm, and powder feeding rate is 160-200g/min, and gas temperature is 400-550 DEG C, gas pressure
Power is 4-7MPa, and spray time is 3-5min.
On cement rotary kiln of the present invention intermediate zone inner surface alloy powder its with Fe2CoCrMnNixB high rigidity is high
Alloy based on the high-entropy alloy of corrosion resistance, in its composition, including Fe, Co, Cr, Mn, Ni and B, by controlling each composition
Content in system, it is achieved that give full play to the effect of the maximum performance of each element, gives the comprehensive of alloy powder excellence
Can, it is reproducible, sphericity is high, good fluidity, oxygen content are low, tap density is high, decay resistance is good, have simple face
Heart cubic structure solid solution phase form to spray-on coating there is high intensity, hardness, corrosion resistance and resisting fatigue
Property and the bond strength with matrix；Concrete, properly increase the content of Fe, reduced while basal body binding force improving
Cost, Ni is mainly used in improving alloy and the wettability of matrix and improving sprayed coating performance, and Cr is mainly carried by solution strengthening
High sprayed coating hardness also improves coating corrosion resistance, and Co mainly improves the high temperature oxidation resistance of sprayed coating, corrosion resistance also
Improving coating hardness, Mn is mainly used in deoxidation, and low-alloyed solid liquid phase temperature can drop in the appropriate B of interpolation, makes the high entropy of preparation
It is interval that alloy powder has wider solid liquid phase in print procedure, can also obtain the siderochrome boride of more high rigidity simultaneously.
Preparation method in the present invention uses one-step method, and each raw material block needed for alloy powder is added Medium frequency induction by this method
Smelting furnace carries out melting, utilizes liquid metals can spontaneously form the rolling of liquid level under intermediate frequency effect, obtains the gold that component is homogeneous
Belong to liquid, then metal liquid is directly carried out atomization process by mozzle and tundish, first prepare the conjunction of high entropy with existing
Gold ingot casting, is compared by the two step method of powder by atomization, has environmental pollution little, the feature that step is simple, energy consumption is low, with
Time according to the character of alloys components, technological parameter in conservative control preparation process so as to get alloy powder there is weight
Renaturation is good, sphericity is high, the feature of good fluidity.
In the preparation process of coating, have employed cold spray technique, itself and hypervelocity flame-spraying, plasma spraying, blast
The conventional thermal spraying differences such as spraying, cold spray technique need not melt the metallic of spraying, so spraying matrix surface produces
Raw temperature is not over 150 DEG C.Cold spray technique be utilize compressed air accelerate metallic to critical velocity (supersonic speed),
Metallic attacks matrix surface firm attachment directly, and whole process metallic is not melted, and i.e. uses not melted gold
Metal particles, manufactures metal coating on surface to be machined, coating has that the porosity is low, the thermic load of matrix material and coating is little,
The advantages such as material oxidation is few, to eliminate crystallization in coating uneven.And low pressure cold sprays without high temperature, without flame, without hazardous gas,
Radiationless and chemical waste, can hand operation, safety is high, and directionality is good, and in the case of not using mould, spray area can
Less than high pressure cold spraying, i.e. its operability is more preferable.
In sum, the preparation method in the present invention, step is simple, energy consumption is low, it is easy to control, and environmental pollution is little, system
Intermediate zone inner surface alloy powder simple in construction on standby cement rotary kiln, component is homogeneous, oxygen content is low, tap density is high,
Sphericity height, good fluidity, even particle size distribution, decay resistance is good, productivity is big, steady quality, is suitable for large-scale industry
Produce；Overcome polishing, that ball-milling method prepares alloy powder production efficiency is low, the inhomogenous shortcoming of component；Avoid simultaneously and make
By price, the raw-material shortcoming of metal-powder that oxygen content is high；Use cold spray technique, and control the technique ginseng of spraying
Number, the coating obtained has corrosion resistance and the wearability of excellence.
Accompanying drawing explanation
Fig. 1 is the XRD figure sheet of intermediate zone inner surface alloy powder on the cement rotary kiln that the embodiment of the present invention 2 prepares；
Fig. 2 is the SEM picture of intermediate zone inner surface alloy powder on the cement rotary kiln that the embodiment of the present invention 2 prepares.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln that the present invention proposes, its chemical composition by weight hundred
Proportion by subtraction includes: Fe:35%, Co:15%, Cr:19%, Mn:15%, Ni:15.996%, B:0.004%.
The preparation method of intermediate zone inner surface alloy powder on a kind of described cement rotary kiln that the present invention also proposes, bag
Include following steps:
S1, weigh ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy by proportioning, by fusing point order from low to high
It is sequentially added in medium frequency induction melting furnace, is evacuated to 1.5 × 10-3MPa, is then charged with argon, is 1 air at argon pressure
Under conditions of pressure, melting 40min obtains metal liquid；
S2, metal liquid is sent into tundish, then in nozzle enters atomization plant, carry out aerosolization and obtain described water
Intermediate zone inner surface alloy powder on mud rotary kiln.
Embodiment 2
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln that the present invention proposes, its chemical composition by weight hundred
Proportion by subtraction includes: Fe:30%, Co:20%, Cr:15%, Mn:19%, Ni:15.992%, B:0.008%.
The preparation method of intermediate zone inner surface alloy powder on a kind of described cement rotary kiln that the present invention also proposes, bag
Include following steps:
S1, weigh ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy by proportioning, by fusing point order from low to high
It is sequentially added in medium frequency induction melting furnace, is evacuated to 1 × 10-3MPa, is then charged with argon, is 1 atmospheric pressure at argon pressure
Under conditions of melting 70min obtain metal liquid；
S2, metal liquid is sent into tundish, then in nozzle enters atomization plant, carry out aerosolization and obtain described water
Intermediate zone inner surface alloy powder on mud rotary kiln.
Fig. 1 is the XRD figure sheet of intermediate zone inner surface alloy powder on the cement rotary kiln that the present embodiment prepares；By Fig. 1
Understanding, the uniform component of gained powder body, purity is high.
Fig. 2 is the SEM picture of intermediate zone inner surface alloy powder on the cement rotary kiln that the present embodiment prepares, by Fig. 2
Understanding, the sphericity of gained powder is preferable.
Embodiment 3
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln that the present invention proposes, its chemical composition by weight hundred
Proportion by subtraction includes: Fe:30.2%, Co:19.795%, Cr:20%, Mn:15%, Ni:15%, B:0.005%.
The preparation method of intermediate zone inner surface alloy powder on a kind of described cement rotary kiln that the present invention also proposes, bag
Include following steps:
S1, weigh ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy by proportioning, by fusing point order from low to high
It is sequentially added in medium frequency induction melting furnace, is evacuated to 1.1 × 10-3MPa, is then charged with argon, is 1 air at argon pressure
Under conditions of pressure, melting 45min obtains metal liquid；
S2, metal liquid is sent into tundish by mozzle, and the temperature of mozzle is 650 DEG C, then enters through nozzle
Entering and carry out aerosolization in atomization plant, wherein, metal liquid is 8Kg/min by the flow velocity of nozzle, and the pressure of aerosolization is
4MPa, the gas used is argon, and the flow velocity of argon is 320m/s；Product is cooled down, is then 1.1 air at pressure
Sieve under the protection of the nitrogen of pressure, make the particle diameter of product between-200～600 mesh, obtain intermediate zone on described cement rotary kiln
Inner surface alloy powder.
Intermediate zone coating on inner surface on a kind of cement rotary kiln that the present invention also proposes, intermediate zone on cement rotary kiln
Inner surface, uses intermediate zone inner surface alloy powder low pressure cold spraying on described cement rotary kiln to form, wherein, in low pressure cold
In spraying process, spray distance is 30cm, and powder feeding rate is 160g/min, and gas temperature is 550 DEG C, and gas pressure is 4MPa,
Spray time is 5min.
Embodiment 4
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln that the present invention proposes, its chemical composition by weight hundred
Proportion by subtraction includes: Fe:30%, Co:15.594%, Cr:15%, Mn:19.4%, Ni:20%, B:0.006%.
The preparation method of intermediate zone inner surface alloy powder on a kind of described cement rotary kiln that the present invention also proposes, bag
Include following steps:
S1, weigh ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy by proportioning, by fusing point order from low to high
It is sequentially added in medium frequency induction melting furnace, is evacuated to 1.4 × 10-3MPa, is then charged with argon, is 1 air at argon pressure
Under conditions of pressure, melting 65min obtains metal liquid；
S2, metal liquid is sent into tundish by mozzle, and the temperature of mozzle is 670 DEG C, then enters through nozzle
Entering and carry out aerosolization in atomization plant, wherein, metal liquid is 12Kg/min by the flow velocity of nozzle, and the pressure of aerosolization is
3MPa, the gas used is argon, and the flow velocity of argon is 280m/s；Product is cooled down, is then 1.1 air at pressure
Sieve under the protection of the nitrogen of pressure, make the particle diameter of product between-200～600 mesh, obtain intermediate zone on described cement rotary kiln
Inner surface alloy powder.
Intermediate zone coating on inner surface on a kind of cement rotary kiln that the present invention also proposes, intermediate zone on cement rotary kiln
Inner surface, uses intermediate zone inner surface alloy powder low pressure cold spraying on described cement rotary kiln to form, wherein, in low pressure cold
In spraying process, spray distance is 10cm, and powder feeding rate is 200g/min, and gas temperature is 400 DEG C, and gas pressure is 7MPa,
Spray time is 3min.
Embodiment 5
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln that the present invention proposes, its chemical composition by weight hundred
Proportion by subtraction includes: Fe:33.2%, Co:17.4%, Cr:15.4%, Mn:16.1%, Ni:17.892%, B:0.008%.
The preparation method of intermediate zone inner surface alloy powder on a kind of described cement rotary kiln that the present invention also proposes, bag
Include following steps:
S1, weigh ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy by proportioning, by fusing point order from low to high
It is sequentially added in medium frequency induction melting furnace, is evacuated to 1.2 × 10-3MPa, is then charged with argon, is 1 air at argon pressure
Under conditions of pressure, melting 50min obtains metal liquid；
S2, metal liquid is sent into tundish by mozzle, and the temperature of mozzle is 660 DEG C, then enters through nozzle
Entering and carry out aerosolization in atomization plant, wherein, metal liquid is 10Kg/min by the flow velocity of nozzle, and the pressure of aerosolization is
3.5MPa, the gas used is argon, and the flow velocity of argon is 300m/s；Product is cooled down, then pressure be 1.1 big
Sieve under the protection of the nitrogen of air pressure, make the particle diameter of product in 30-115 μm, obtain on described cement rotary kiln table in intermediate zone
Face alloy powder, its oxygen content is 136ppm.
Intermediate zone coating on inner surface on a kind of cement rotary kiln that the present invention also proposes, intermediate zone on cement rotary kiln
Inner surface, uses intermediate zone inner surface alloy powder low pressure cold spraying on described cement rotary kiln to form, wherein, in low pressure cold
In spraying process, spray distance is 20cm, and powder feeding rate is 175g/min, and gas temperature is 480 DEG C, and gas pressure is
5.8MPa, spray time is 4min.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (9)
1. intermediate zone inner surface alloy powder on a cement rotary kiln, it is characterised in that its chemical composition percentage by weight
Ratio includes: Fe:30-35%, Co:15-20%, Cr:15-20%, Mn:15-20%, Ni:15-20%, B:0.004-
0.008%.
Intermediate zone inner surface alloy powder on cement rotary kiln the most according to claim 1, it is characterised in that its chemistry becomes
Divide and include by weight percentage: Fe:33.2%, Co:17.4%, Cr:15.4%, Mn:16.1%, Ni:17.892%, B:
0.008%.
3. a preparation method for intermediate zone inner surface alloy powder on cement rotary kiln as claimed in claim 1 or 2, it is special
Levy and be, comprise the following steps:
S1, weigh ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy by proportioning, by fusing point order from low to high successively
Add in medium frequency induction melting furnace, be evacuated to 1-1.5 × 10-3MPa, is then charged with argon, is 1 atmospheric pressure at argon pressure
Under conditions of melting 40-70min obtain metal liquid；
S2, metal liquid is sent into tundish, in nozzle enters atomization plant, then carry out aerosolization obtain described cement and return
Intermediate zone inner surface alloy powder on rotary kiln.
The most according to claim 3, the preparation method of intermediate zone inner surface alloy powder on cement rotary kiln, its feature exists
In, in S2, metal liquid sends into tundish by mozzle, and the temperature of mozzle is 650-670 DEG C.
5. according to the preparation method of intermediate zone inner surface alloy powder, its feature on cement rotary kiln described in claim 3 or 4
Being, in S2, metal liquid is 8-12Kg/min by the flow velocity of nozzle.
6. according to the preparation side of intermediate zone inner surface alloy powder on cement rotary kiln according to any one of claim 3-5
Method, it is characterised in that in S2, during aerosolization, the pressure of aerosolization is 3-4MPa, and the gas used is argon
Gas, and the flow velocity of argon is 280-320m/s.
7. according to the preparation side of intermediate zone inner surface alloy powder on cement rotary kiln according to any one of claim 3-6
Method, it is characterised in that in S2, also includes cooling down product after aerosolization terminates, is then 1.1 atmospheric pressure at pressure
Sieve under the protection of nitrogen, make the particle diameter of product between-200～600 mesh, obtain on described cement rotary kiln table in intermediate zone
Face alloy powder.
8. according to the preparation side of intermediate zone inner surface alloy powder on cement rotary kiln according to any one of claim 3-7
Method, it is characterised in that comprise the following steps:
S1, weigh ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy by proportioning, by fusing point order from low to high successively
Add in medium frequency induction melting furnace, be evacuated to 1.2 × 10-3MPa, is then charged with argon, is 1 atmospheric pressure at argon pressure
Under the conditions of melting 50min obtain metal liquid；
S2, metal liquid is sent into tundish by mozzle, and the temperature of mozzle is 660 DEG C, then enters mist through nozzle
Carrying out aerosolization in change equipment, wherein, metal liquid is 10Kg/min by the flow velocity of nozzle, and the pressure of aerosolization is
3.5MPa, the gas used is argon, and the flow velocity of argon is 300m/s；Product is cooled down, then pressure be 1.1 big
Sieve under the protection of the nitrogen of air pressure, make the particle diameter of product between-200～600 mesh, obtain transition on described cement rotary kiln
Band inner surface alloy powder.
9. intermediate zone coating on inner surface on a cement rotary kiln, it is characterised in that the interior table of intermediate zone on cement rotary kiln
Face, uses intermediate zone inner surface alloy powder low pressure cold spraying on cement rotary kiln as claimed in claim 1 or 2 to form, its
In, in low pressure cold spraying process, spray distance is 10-30cm, and powder feeding rate is 160-200g/min, and gas temperature is 400-
550 DEG C, gas pressure is 4-7MPa, and spray time is 3-5min.
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| CN108937605A (en) * | 2017-05-26 | 2018-12-07 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and cooking apparatus |
| CN109972134A (en) * | 2019-03-08 | 2019-07-05 | 广东工业大学 | A method of FeCoNiCrMn high entropy alloy coating is prepared on potassium steel surface |
| JP2019534374A (en) * | 2017-09-08 | 2019-11-28 | ポステック アカデミー−インダストリー ファンデーション | Boron-doped high entropy alloy and method for producing the same |
| CN113699424A (en) * | 2021-08-31 | 2021-11-26 | 张家港江苏科技大学产业技术研究院 | High-entropy alloy material, surface laser remelting method and gradient high-entropy alloy material |
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| FR3026748A1 (en) * | 2014-10-06 | 2016-04-08 | Ass Pour La Rech Et Le Dev De Methodes Et Processus Ind Armines | METAL ALLOY, METALLIC PART AND PROCESS FOR OBTAINING |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937605A (en) * | 2017-05-26 | 2018-12-07 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and cooking apparatus |
| JP2019534374A (en) * | 2017-09-08 | 2019-11-28 | ポステック アカデミー−インダストリー ファンデーション | Boron-doped high entropy alloy and method for producing the same |
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| CN109972134A (en) * | 2019-03-08 | 2019-07-05 | 广东工业大学 | A method of FeCoNiCrMn high entropy alloy coating is prepared on potassium steel surface |
| CN113699424A (en) * | 2021-08-31 | 2021-11-26 | 张家港江苏科技大学产业技术研究院 | High-entropy alloy material, surface laser remelting method and gradient high-entropy alloy material |
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