CN106119663B - Intermediate zone inner surface alloy powder, preparation and its coating on cement rotary kiln - Google Patents
Intermediate zone inner surface alloy powder, preparation and its coating on cement rotary kiln Download PDFInfo
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- CN106119663B CN106119663B CN201610677329.0A CN201610677329A CN106119663B CN 106119663 B CN106119663 B CN 106119663B CN 201610677329 A CN201610677329 A CN 201610677329A CN 106119663 B CN106119663 B CN 106119663B
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 101
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- 238000000576 coating method Methods 0.000 title claims abstract description 47
- 239000011248 coating agent Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 38
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 19
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 19
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 18
- 229910052796 boron Inorganic materials 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 64
- 239000007789 gas Substances 0.000 claims description 42
- 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
- 238000002844 melting Methods 0.000 claims description 27
- 230000008018 melting Effects 0.000 claims description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 27
- 238000012387 aerosolization Methods 0.000 claims description 20
- 239000011651 chromium Substances 0.000 claims description 19
- 239000011572 manganese Substances 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000000889 atomisation Methods 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
- 238000010288 cold spraying Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 10
- 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
- 238000005507 spraying Methods 0.000 description 10
- 239000011159 matrix material Substances 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
- 239000002994 raw material Substances 0.000 description 6
- 238000000498 ball milling Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000000243 solution 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
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- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold 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
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 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
- 230000002929 anti-fatigue Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 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
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process 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
- 238000004880 explosion Methods 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
- 238000009776 industrial production 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
- 239000002923 metal particle Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000000203 mixture 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
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- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 238000010257 thawing Methods 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
Abstract
The invention discloses intermediate zone inner surface alloy powders and preparation method thereof on a kind of cement rotary kiln, and the coating prepared with the powder body material；The chemical component of powder body material includes: Fe:30-35%, Co:15-20%, Cr:15-20%, Mn:15-20%, Ni:15-20%, B:0.004-0.008% by weight percentage.Intermediate zone inner surface alloy powder sphericity height on cement rotary kiln in the present invention, good fluidity, oxygen content is low, tap density is high, component is uniform, to form with the solid solution phase of simple face-centred cubic structure, the preparation method is that one-step method environmental pollution is small, the disadvantages of two step method step is complicated, energy consumption is high is overcome；Obtaining intermediate zone coating on inner surface on cement rotary kiln using cold spray process has excellent corrosion resistance.
Description
Technical field
The present invention relates to metal powder material and material surface processing and reinforcement technique field more particularly to a kind of cement to return
Intermediate zone inner surface alloy powder and preparation method thereof on rotary kiln, and the coating prepared with it.
Background technique
The cylinder of cement rotary kiln is the basic components of equipment high efficiency operation, and material is substantially ordinary steel, under high temperature
Generally existing high temperature oxidation and corrosion generates oxide layer；In addition contain SO in cement kiln atmosphere in production process2、Cl、K2O、Na2O
Etc. harmful components corrosion can also be generated to cylinder, especially in upper filter bag without kliner coating region (about 25-40m, each kiln type different),
And the corrosion of the part cylinder is more serious, replacing refractory brick surface every time has layer of oxide layer.Therefore carry out cylinder of rotary kiln
Maintenance work, especially being effectively treated as present important technological problems to equipment barrel corrosion.For cement rotary kiln
Upper filter bag corrodes more serious position, research and development thermal shock resistance is good, good, anti-oxidant, the resistance to villaumite pitting of wearability simultaneously
And easy for construction, cost-effective coating is extremely urgent.
Multicomponent high-entropy alloy is a kind of completely new alloy body to grow up on the basis of block amorphous alloy in recent years
System, breaches conventional alloys using one or two kinds of elements as the design concept of major components, by not less than 5 kinds essential elements according to
Equal atomic ratios or close to equal atomic ratio alloys, and the total mole number ratio of the molal quantity of each metallic element and the alloy
Between 5-35%.Alloying element increases the high entropy effect of generation, and slow diffusion 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
Object and nanocrystalline is closed, to reach solution strengthening, precipitation strength and dispersion-strengthened effect.It can by alloying component optimization design
Make high-entropy alloy in performance with greater advantage than conventional alloys, such as high intensity, high rigidity, high corrosion-resistant, high-fire resistance,
The characteristics such as special electricity, magnetic property.Utilize multicomponent high-entropy alloy fusing point with higher, hardness, antiwear property, anti-corruption
Its plated film to metal base surface is formed high-entropy alloy film, then can by many merits such as erosion ability, oxidation-resistance property
Good progradation is played to the development of material.Many researchers have done many trials for the advantages of high entropy alloy coating,
Such as being developed using laser melting and coating technique on inexpensive iron-based material surface has high rigidity, high heat resistance, corrosion-resistant and special electricity, magnetic
The FeCoNiCrAl of equal Good All-around Properties2Si and 6FeNiCoCrAlTiSi high entropy alloy coating (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)；Using
Laser melting and coating technique is prepared for TiVCrAlSi high entropy alloy coating on Ti-6A1-4V alloy substrate surface, which 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
It is pre-mixed in high-entropy alloy powder between different types of metallic element and its density, fusing point, specific heat and expansion between matrix
The thermophysical property such as coefficient have differences, and are directly applied to the sufacings such as Laser cladding, thermal spraying and are on the one hand difficult to
To the uniform coating of ingredient, the Forming Quality and surface continuity of coating are unable to meet production requirement；On the other hand it is applying
To the dilution of coating and the scaling loss of element itself, the alloy coat actually obtained is not necessarily nominal for collective during covering
High-entropy alloy scope.
It is molten in laser that Chinese patent CN103394685B discloses a kind of Alloyapplication for being used to prepare high entropy alloy coating
On the one hand the sufacings such as multiple, thermal spraying are difficult to obtain the uniform coating of ingredient, the Forming Quality of coating and surface continuity without
Method, which meets to produce and use, to be required；On the other hand in powder and its preparation method and application: the method weighs granularity not first in proportion
Greater than 200 mesh and it is not less than the various raw material powders of 300 purposes, is placed in 1~3h of grinding in mortar and is allowed to be sufficiently mixed, then in iron
It is modified that substrate surface carries out laser melting coating；University Of Tianjin application CN104141085A, CN104141084A and
A series of patents of CN105401042A are also all the methods for first preparing alloy powder using the various mixed powders of mortar grinder, then
Different coatings is prepared using the method for laser melting coating on different matrixes.Raw material used by the method one side is all metal
Powder, price is expensive relative to respective alloy powder and powder amount of oxidation is higher；On the other hand low using mortar production efficiency, it is uncomfortable
Large-scale industrial production is closed, simultaneously because the thermophysical property such as density of different metal element have differences, it is impossible to completely
It is uniformly mixed, so that the coating quality and surface continuity of post laser cladding are unable to meet production requirement.
Chinese patent CN1033290404A discloses a kind of laser melting coating high-entropy alloy powder and high entropy alloy coating
Preparation method: the method by required various metal-powders in the ball mill in Ar gas atmosphere under 250-500 revs/min of speed ball
It grinds 3-10h and prealloy powder is made, the finished powder that particle size range is 140~320 mesh is then sifted out by sieving machine, in CO2Gao Gong
Carry out multiple tracks cladding under rate laser in 45 steel matrix by the way of synchronous powder feeding system；Chinese patent CN104841930A is disclosed
Be also to be mixed various raw materials using ball milling for the alloy powder of 3D printing and application its method for preparing high entropy alloy coating
It closes uniformly, high entropy alloy coating is then made in matrix surface using laser selective sintering process；Same Chinese patent
CN105401038A is also first to prepare alloy powder using ball-milling method, the method system for then using laser melting coating in grinding tool steel surface
Standby coating.Above-mentioned each patent is all to prepare high-entropy alloy prealloy powder using ball-milling method, energy consumption is high and powder component it is uniform
Property still need to be further increased, used raw material is also all metal-powder, equally exists that price, amount of oxidation are higher etc. to be lacked
Point.
Shenyang University of Technology application a series of patent CN104646660A, CN104651828A, CN104561990A,
The alloy powder that CN104550901A, CN104607631A and CN104561992A are related to all is by the metal of equimolar ratio
It grinds obtained by 2~5h in powder or metal-powder and non-metallic powder in a planetary ball mill ball milling or mortar, then adopts
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 equally exists various disadvantages above-mentioned.
Chinese patent CN104561878A discloses a kind of spraying high-entropy alloy powder and preparation method thereof, composite material
And preparation method thereof: the patent uses the self-consuming electrode atomized two step method powder of vacuum melting furnace melting high-entropy alloy casting rod-, so
Made high-entropy alloy powder is sprayed to by the matrix surfaces such as aluminium alloy, magnesium alloy, kirsite, copper alloy and steel using spray gun afterwards
High entropy alloy coating is made.The method utilizes two step method (first preparing high-entropy alloy ingot casting, then passing through powder by atomization) preparation
It is thin that the high-entropy alloy parent surface that alloy powder, step complexity, energy consumption height, and the first step prepare easily forms one layer of oxide
Film.
Summary of the invention
Technical problems based on background technology, the invention proposes intermediate zone inner surfaces on a kind of cement rotary kiln to use
Alloy powder and preparation method thereof, and the coating prepared with it, the alloy powder sphericity height, good fluidity, oxygen content
It is low, tap density is high, component is uniform, for the solid solution phase of simple face-centred cubic structure form；Preparation method environmental pollution
Small, step is simple, low energy consumption；Gained coating corrosion resistance is good.
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln proposed by the present invention, chemical component by weight hundred
Dividing ratio includes: Fe:30-35%, Co:15-20%, Cr:15-20%, Mn:15-20%, Ni:15-20%, B:0.004-
0.008%.
Preferably, chemical component includes: Fe:33.2%, Co:17.4%, Cr:15.4%, Mn by weight percentage:
16.1%, Ni:17.892%, B:0.008%.
The preparation method of intermediate zone inner surface alloy powder on a kind of cement rotary kiln proposed by the present invention, including
Following steps:
S1, ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy are weighed according to the ratio, by the sequence of fusing point from low to high
It sequentially adds in medium frequency induction melting furnace, is evacuated to 1-1.5 × 10-3MPa is then charged with argon gas, is 1 big in argon pressure
Melting 40-70min obtains metal liquid under conditions of air pressure；
S2, metal liquid is sent into tundish, then enters progress aerosolization in atomization plant through nozzle and obtains the water
Intermediate zone inner surface alloy powder on mud rotary kiln.
Preferably, in S2, metal liquid is sent into tundish by diversion pipe, and the temperature of diversion pipe is 650-670 DEG C.
Preferably, in S2, the flow velocity that metal liquid passes through nozzle is 8-12Kg/min.
Preferably, in S2, during aerosolization, the pressure of aerosolization is 3-4MPa, and used gas is argon
Gas, and the flow velocity of argon gas is 280-320m/s.
Preferably, in S2, further include that product is cooling after aerosolization, be then 1.1 atmospheric pressure in pressure
Nitrogen protection under sieve, make the partial size of product between -200~600 mesh, obtain on the cement rotary kiln in intermediate zone
Surface alloy powder.
Preferably, on the cement rotary kiln intermediate zone inner surface alloy powder preparation method, comprising the following steps:
S1, ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy are weighed according to the ratio, by the sequence of fusing point from low to high
It sequentially adds in medium frequency induction melting furnace, is evacuated to 1.2 × 10-3MPa is then charged with argon gas, is 1 atmosphere in argon pressure
Melting 50min obtains metal liquid under conditions of pressure；
S2, by metal liquid by diversion pipe be sent into tundish, and the temperature of diversion pipe be 660 DEG C, then through nozzle into
Enter and carry out aerosolization in atomization plant, wherein the flow velocity that metal liquid passes through nozzle is 10Kg/min, and the pressure of aerosolization is
3.5MPa, used gas is argon gas, and the flow velocity of argon gas is 300m/s；Product is cooling, it is then 1.1 big in pressure
It is sieved under the protection of the nitrogen of air pressure, makes the partial size of product between -200~600 mesh, obtain transition on the cement rotary kiln
Band inner surface alloy powder.
Intermediate zone coating on inner surface on a kind of cement rotary kiln proposed by the present invention, on cement rotary kiln in intermediate zone
Surface is formed using intermediate zone inner surface on the cement rotary kiln with alloy powder low pressure cold spraying, wherein is sprayed in low pressure cold
During painting, spray distance 10-30cm, powder feeding rate 160-200g/min, gas temperature are 400-550 DEG C, gas pressure
Power is 4-7MPa, spray time 3-5min.
On cement rotary kiln of the present invention intermediate zone inner surface with alloy powder its with Fe2CoCrMnNixB high rigidity is high
The high-entropy alloy of corrosion resistance is basic alloy, in its ingredient, including Fe, Co, Cr, Mn, Ni and B, by controlling each ingredient
Content in system, realizes the effect for giving full play to the maximum performance of each element, assigns alloy powder excellent comprehensive
Can, it is reproducible, sphericity is high, good fluidity, oxygen content is low, tap density is high, corrosion resistance is good, with simple face
Heart cubic structure solid solution phase composition, so that the spray-on coating made has high intensity, hardness, corrosion resistance and antifatigue
Property and the bond strength with matrix；Specifically, having properly increased the content of Fe, reduced while improving with basal body binding force
Cost, Ni are mainly used for improving the wetability of alloy and matrix and improve spray coating performance, and Cr is mainly mentioned by solution strengthening
High spray coating hardness simultaneously improves coating corrosion resistance, and the Co mainly high temperature oxidation resistance of raising spray coating, corrosion resistance are simultaneously
Coating hardness is improved, Mn is mainly used for deoxidation, and low-alloyed solid liquid phase temperature can drop in suitable B of addition, makes the high entropy of preparation
Alloy powder has wider solid liquid phase section in print procedure, while can also obtain the siderochrome boride of more high rigidity.
Preparation method in the present invention uses one-step method, which is added Medium frequency induction for each raw material block needed for alloy powder
Smelting furnace carries out melting, can spontaneously form the rolling of liquid level under intermediate frequency effect using liquid metals, obtain the uniform gold of component
Belong to liquid, metal liquid is directly then subjected to atomization process by diversion pipe and tundish, first prepares high entropy conjunction with existing
The characteristics of then golden ingot casting is compared by the two step method of powder by atomization again, have environmental pollution small, and step is simple, low energy consumption, together
When according to the property of alloys components, rationally control the technological parameter in preparation process, the alloy powder made has weight
The characteristics of renaturation is good, sphericity is high, good fluidity.
In the preparation process of coating, cold spray technique is used, with hypervelocity flame-spraying, plasma spraying, explosion
Traditional thermal spraying such as spraying is different, and cold spray technique does not need the metallic that will be sprayed thawing, so spraying matrix surface produces
Raw temperature does not exceed 150 DEG C.Cold spray technique is to accelerate metallic to critical speed (supersonic speed) using compressed air,
Metallic is attacked directly to matrix surface and firm attachment, and whole process metallic is not melted, i.e., using the gold not melted
Metal particles, manufacture metal coating on surface to be machined, coating have the thermic load of the low porosity, basis material and coating it is small,
Material oxidation is few, eliminates in coating and crystallizes the advantages that uneven.And low pressure cold spraying is without high temperature, no flame, no hazardous gas,
Radiationless and chemical waste, can hand operation, highly-safe, directionality is good, do not use mold in the case where spray area can
Less than high pressure cold spraying, i.e., its operability is more preferable.
In conclusion the preparation method in the present invention, step is simple, low energy consumption, easily controllable, and environmental pollution is small, system
Intermediate zone inner surface is simple with alloy powder structure on standby cement rotary kiln, component is uniform, oxygen content is low, tap density is high,
Sphericity height, good fluidity, even particle size distribution, corrosion resistance is good, yield is big, quality is stable, is suitble to large-scale industry
Production；Overcome polishing, ball-milling method prepares that alloy powder production efficiency is low, the inhomogenous disadvantage of component；Avoiding simultaneously makes
The shortcomings that with price, oxygen content high metal-powder raw material；Using cold spray technique, and control the technique ginseng of spraying
Number, obtained coating have excellent corrosion resistance and wearability.
Detailed description of the invention
Fig. 1 is the XRD diagram piece of intermediate zone inner surface alloy powder on cement rotary kiln made from the embodiment of the present invention 2；
Fig. 2 is the SEM picture of intermediate zone inner surface alloy powder on cement rotary kiln made from the embodiment of the present invention 2.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln proposed by the present invention, chemical component by weight hundred
Dividing ratio 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 cement rotary kiln that the present invention also proposes, packet
Include following steps:
S1, ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy are weighed according to the ratio, by the sequence of fusing point from low to high
It sequentially adds in medium frequency induction melting furnace, is evacuated to 1.5 × 10-3MPa is then charged with argon gas, is 1 atmosphere in argon pressure
Melting 40min obtains metal liquid under conditions of pressure；
S2, metal liquid is sent into tundish, then enters progress aerosolization in atomization plant through nozzle and obtains the 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 proposed by the present invention, chemical component by weight hundred
Dividing ratio 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 cement rotary kiln that the present invention also proposes, packet
Include following steps:
S1, ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy are weighed according to the ratio, by the sequence of fusing point from low to high
It sequentially adds in medium frequency induction melting furnace, is evacuated to 1 × 10-3MPa is then charged with argon gas, is 1 atmospheric pressure in argon pressure
Under conditions of melting 70min obtain metal liquid；
S2, metal liquid is sent into tundish, then enters progress aerosolization in atomization plant through nozzle and obtains the water
Intermediate zone inner surface alloy powder on mud rotary kiln.
Fig. 1 is the XRD diagram piece of intermediate zone inner surface alloy powder on cement rotary kiln made from the present embodiment；By Fig. 1
It is found that the uniform component of gained powder, purity is high.
Fig. 2 is the SEM picture of intermediate zone inner surface alloy powder on cement rotary kiln made from the present embodiment, by Fig. 2
It is found that the sphericity of gained powder is preferable.
Embodiment 3
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln proposed by the present invention, chemical component by weight hundred
Dividing ratio 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 cement rotary kiln that the present invention also proposes, packet
Include following steps:
S1, ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy are weighed according to the ratio, by the sequence of fusing point from low to high
It sequentially adds in medium frequency induction melting furnace, is evacuated to 1.1 × 10-3MPa is then charged with argon gas, is 1 atmosphere in argon pressure
Melting 45min obtains metal liquid under conditions of pressure；
S2, by metal liquid by diversion pipe be sent into tundish, and the temperature of diversion pipe be 650 DEG C, then through nozzle into
Enter and carry out aerosolization in atomization plant, wherein the flow velocity that metal liquid passes through nozzle is 8Kg/min, and the pressure of aerosolization is
4MPa, used gas is argon gas, and the flow velocity of argon gas is 320m/s；Product is cooling, it is then 1.1 atmosphere in pressure
It is sieved under the protection of the nitrogen of pressure, makes the partial size of product between -200~600 mesh, obtain intermediate zone on the 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, the intermediate zone on cement rotary kiln
Inner surface is formed using intermediate zone inner surface on the cement rotary kiln with alloy powder low pressure cold spraying, wherein in low pressure cold
In spraying process, spray distance 30cm, powder feeding rate 160g/min, gas temperature are 550 DEG C, gas pressure 4MPa,
Spray time is 5min.
Embodiment 4
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln proposed by the present invention, chemical component by weight hundred
Dividing ratio 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 cement rotary kiln that the present invention also proposes, packet
Include following steps:
S1, ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy are weighed according to the ratio, by the sequence of fusing point from low to high
It sequentially adds in medium frequency induction melting furnace, is evacuated to 1.4 × 10-3MPa is then charged with argon gas, is 1 atmosphere in argon pressure
Melting 65min obtains metal liquid under conditions of pressure；
S2, by metal liquid by diversion pipe be sent into tundish, and the temperature of diversion pipe be 670 DEG C, then through nozzle into
Enter and carry out aerosolization in atomization plant, wherein the flow velocity that metal liquid passes through nozzle is 12Kg/min, and the pressure of aerosolization is
3MPa, used gas is argon gas, and the flow velocity of argon gas is 280m/s；Product is cooling, it is then 1.1 atmosphere in pressure
It is sieved under the protection of the nitrogen of pressure, makes the partial size of product between -200~600 mesh, obtain intermediate zone on the 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, the intermediate zone on cement rotary kiln
Inner surface is formed using intermediate zone inner surface on the cement rotary kiln with alloy powder low pressure cold spraying, wherein in low pressure cold
In spraying process, spray distance 10cm, powder feeding rate 200g/min, gas temperature are 400 DEG C, gas pressure 7MPa,
Spray time is 3min.
Embodiment 5
Intermediate zone inner surface alloy powder on a kind of cement rotary kiln proposed by the present invention, chemical component by weight hundred
Dividing ratio 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 cement rotary kiln that the present invention also proposes, packet
Include following steps:
S1, ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy are weighed according to the ratio, by the sequence of fusing point from low to high
It sequentially adds in medium frequency induction melting furnace, is evacuated to 1.2 × 10-3MPa is then charged with argon gas, is 1 atmosphere in argon pressure
Melting 50min obtains metal liquid under conditions of pressure；
S2, by metal liquid by diversion pipe be sent into tundish, and the temperature of diversion pipe be 660 DEG C, then through nozzle into
Enter and carry out aerosolization in atomization plant, wherein the flow velocity that metal liquid passes through nozzle is 10Kg/min, and the pressure of aerosolization is
3.5MPa, used gas is argon gas, and the flow velocity of argon gas is 300m/s；Product is cooling, it is then 1.1 big in pressure
It is sieved under the protection of the nitrogen of air pressure, makes the partial size of product at 30-115 μm, obtain on the cement rotary kiln table in intermediate zone
Face alloy powder, oxygen content 136ppm.
Intermediate zone coating on inner surface on a kind of cement rotary kiln that the present invention also proposes, the intermediate zone on cement rotary kiln
Inner surface is formed using intermediate zone inner surface on the cement rotary kiln with alloy powder low pressure cold spraying, wherein in low pressure cold
In spraying process, spray distance 20cm, powder feeding rate 175g/min, gas temperature are 480 DEG C, and gas pressure is
5.8MPa, spray time 4min.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. intermediate zone inner surface alloy powder on a kind of cement rotary kiln, which is characterized in that its chemical component percentage by weight
Than being grouped as by following group: Fe:30-35%, Co:15-17.4%, Cr:19-20%, Mn:15-19.4%, Ni:15-17.892%, B:
0.004-0.008%。
2. the preparation method of intermediate zone inner surface alloy powder, feature on a kind of cement rotary kiln as described in claim 1
It is, comprising the following steps:
S1, ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy are weighed according to the ratio, successively by the sequence of fusing point from low to high
It is added in medium frequency induction melting furnace, is evacuated to 1-1.5 × 10-3MPa is then charged with argon gas, is 1 atmospheric pressure in argon pressure
Under conditions of melting 40-70min obtain metal liquid；
S2, metal liquid is sent into tundish, then enters progress aerosolization in atomization plant through nozzle and obtains the cement time
Intermediate zone inner surface alloy powder on rotary kiln；
In S2, metal liquid is sent into tundish by diversion pipe, and the temperature of diversion pipe is 650-670 DEG C；Metal liquid is logical
The flow velocity for crossing nozzle is 8-12kg/min.
3. according to claim 2 on cement rotary kiln intermediate zone inner surface alloy powder preparation method, feature exists
In in S2, during aerosolization, the pressure of aerosolization is 3-4MPa, and used gas is argon gas, and the stream of argon gas
Speed is 280-320m/s.
4. the preparation method of intermediate zone inner surface alloy powder, feature on the cement rotary kiln according to Claims 2 or 3
It is, in S2, further includes that product is cooling after aerosolization, be then the guarantor of the nitrogen of 1.1 atmospheric pressure in pressure
The lower screening of shield, makes the partial size of product between -200 ~ 600 mesh, obtains intermediate zone inner surface alloy on the cement rotary kiln
Powder.
5. the preparation method of intermediate zone inner surface alloy powder, feature on the cement rotary kiln according to Claims 2 or 3
It is, comprising the following steps:
S1, ingot iron, cobalt ingot, chromium ingot, manganese ingot, nickel ingot and ni-b alloy are weighed according to the ratio, successively by the sequence of fusing point from low to high
It is added in medium frequency induction melting furnace, is evacuated to 1.2 × 10-3MPa is then charged with argon gas, is 1 atmospheric pressure in argon pressure
Under the conditions of melting 50min obtain metal liquid；
S2, metal liquid is sent into tundish by diversion pipe, and the temperature of diversion pipe is 660 DEG C, then enters mist through nozzle
Change in equipment and carry out aerosolization, wherein the flow velocity that metal liquid passes through nozzle is 10kg/min, and the pressure of aerosolization is
3.5MPa, used gas is argon gas, and the flow velocity of argon gas is 300m/s；Product is cooling, it is then 1.1 big in pressure
It is sieved under the protection of the nitrogen of air pressure, makes the partial size of product between -200 ~ 600 mesh, obtain transition on the cement rotary kiln
Band inner surface alloy powder.
6. intermediate zone coating on inner surface on a kind of cement rotary kiln, which is characterized in that the interior table of intermediate zone on cement rotary kiln
Face is formed using intermediate zone inner surface on cement rotary kiln as described in claim 1 with alloy powder low pressure cold spraying, wherein
In low pressure cold spray process, spray distance 10-30cm, powder feeding rate 160-200g/min, gas temperature 400-550
DEG C, gas pressure 4-7MPa, spray time 3-5min.
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| CN103290404A (en) * | 2013-05-06 | 2013-09-11 | 浙江工业大学 | Laser-cladding high-entropy alloy powder and preparation method of high-entropy alloy coating |
| CN104561878A (en) * | 2013-10-29 | 2015-04-29 | 比亚迪股份有限公司 | High-entropy alloy powder for spray coating and preparation method thereof, as well as composite material and preparation method thereof |
| 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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| CN103290404A (en) * | 2013-05-06 | 2013-09-11 | 浙江工业大学 | Laser-cladding high-entropy alloy powder and preparation method of high-entropy alloy coating |
| CN104561878A (en) * | 2013-10-29 | 2015-04-29 | 比亚迪股份有限公司 | High-entropy alloy powder for spray coating and preparation method thereof, as well as composite material and preparation method thereof |
| 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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