CN115110019A - Thermal protection coating of centrifugal machine for rock wool drawing and preparation method thereof - Google Patents
Thermal protection coating of centrifugal machine for rock wool drawing and preparation method thereof Download PDFInfo
- Publication number
- CN115110019A CN115110019A CN202210890123.1A CN202210890123A CN115110019A CN 115110019 A CN115110019 A CN 115110019A CN 202210890123 A CN202210890123 A CN 202210890123A CN 115110019 A CN115110019 A CN 115110019A
- Authority
- CN
- China
- Prior art keywords
- coating
- centrifuge
- rock wool
- thermal protection
- gun
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 94
- 239000011248 coating agent Substances 0.000 title claims abstract description 92
- 239000011490 mineral wool Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000005260 corrosion Methods 0.000 claims abstract description 68
- 238000009413 insulation Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 31
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 14
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 14
- 238000010285 flame spraying Methods 0.000 claims abstract description 11
- 238000007750 plasma spraying Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 40
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 28
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000012159 carrier gas Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 230000001680 brushing effect Effects 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- -1 aluminum vanadium titanium Chemical compound 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 4
- ZXTFQUMXDQLMBY-UHFFFAOYSA-N alumane;molybdenum Chemical compound [AlH3].[Mo] ZXTFQUMXDQLMBY-UHFFFAOYSA-N 0.000 claims description 4
- PEQFPKIXNHTCSJ-UHFFFAOYSA-N alumane;niobium Chemical compound [AlH3].[Nb] PEQFPKIXNHTCSJ-UHFFFAOYSA-N 0.000 claims description 4
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 3
- 229910052691 Erbium Inorganic materials 0.000 claims description 3
- 229910052693 Europium Inorganic materials 0.000 claims description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 229910052689 Holmium Inorganic materials 0.000 claims description 3
- 229910052779 Neodymium Inorganic materials 0.000 claims description 3
- 229910052771 Terbium Inorganic materials 0.000 claims description 3
- 229910052775 Thulium Inorganic materials 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- 229910052765 Lutetium Inorganic materials 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 42
- 239000000463 material Substances 0.000 abstract description 11
- 238000005491 wire drawing Methods 0.000 abstract description 7
- 230000004888 barrier function Effects 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000012720 thermal barrier coating Substances 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 53
- 239000010936 titanium Substances 0.000 description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000000395 magnesium oxide Substances 0.000 description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 9
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 238000001000 micrograph Methods 0.000 description 6
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 6
- 229910002080 8 mol% Y2O3 fully stabilized ZrO2 Inorganic materials 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000000292 calcium oxide Substances 0.000 description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 5
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 description 5
- 238000005488 sandblasting Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000010955 niobium Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 239000010431 corundum Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000013003 healing agent Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/073—Metallic material containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a thermal protection coating of a centrifugal machine for rock wool wire drawing and a preparation method thereof, wherein the surface pretreatment is carried out on the working part of the centrifugal machine; preparing a bonding layer on the working part after surface pretreatment by adopting a supersonic flame spraying method; preparing a self-healing heat insulation coating on the bonding layer by adopting an atmospheric plasma spraying method; in self-healing thermal insulationBrushing an anti-corrosion layer on the coating and drying; the invention utilizes rare earth tantalate RETaO 4 As a corrosion-resistant thermal barrier coating material, a thermal protection coating is prepared on the working part of the centrifuge for drawing the rock wool, so that the working part of the centrifuge has excellent high-temperature stability and thermal barrier performance, and meanwhile, the coating has a self-healing function, has strong corrosion resistance and oxidation resistance, avoids cracking and falling of the coating, and prolongs the service life of the centrifuge.
Description
Technical Field
The invention belongs to the technical field of high-temperature thermal protection and corrosion-resistant coatings, and particularly relates to a thermal protection coating of a centrifuge for rock wool drawing and a preparation method thereof.
Background
Rock wool or mineral wool is a common inorganic material and is also a common surface coating material in buildings, and is widely applied in the building industry of China at present, the raw materials for manufacturing the rock wool or the mineral wool by using rock wool equipment mainly comprise basalt, dolomite, furnace slag, coke and the like, and the raw materials comprise calcium oxide (CaO), magnesium oxide (MgO) and aluminum oxide (Al) 2 O 3 ) Silicon dioxide (SiO) 2 ) And a small amount of iron oxide, or the like, abbreviated as CMAS. The raw materials are melted in a cupola furnace, then led into a centrifuge, drawn into fibers by the centrifuge, pressurized and then fed into a curing furnace to form the fiber with certain thickness and strengthA continuous cotton board.
The following problems mainly exist in the wire drawing process of the centrifugal machine: (1) because the centrifuge is made of steel materials, the rotating speed is 7000-15000 r/min and the working environment is 1200-2000 ℃ in the centrifugation process. In order to improve the high temperature resistance, thermal insulation and wear resistance of the centrifuge, researchers prepared Yttria Stabilized Zirconia (YSZ) coatings on the surface of the centrifuge for wire drawing, however, when the operating temperature exceeded 1200 ℃, fused calcium oxide (CaO), magnesium oxide (MgO), alumina (Al) in the raw materials (basalt, dolomite, slag, coke) were present 2 O 3 ) Silicon dioxide (SiO) 2 ) The coating can permeate into pores of the YSZ coating and react with components of the coating to cause the coating to fall off, so that the steel centrifuge is quickly corroded, and the service life of the centrifuge is shortened. (2) The YSZ has poor high-temperature phase stability, the phase structure of the YSZ can be changed into a cubic phase from a tetragonal phase at the temperature higher than 1200 ℃, meanwhile, the volume expansion is 3-5%, the stress between the coating and the bonding layer can be increased, and the cubic phase can be further changed into a monoclinic phase in the cooling process and causes the cracking failure of the coating along with the change of the volume. (3) The sintering resistance is poor, and in the high-temperature service process, the density of the coating is improved due to shrinkage of air holes and diffusion of elements, the heat conductivity is improved, and the heat insulation performance of the coating is reduced.
Disclosure of Invention
The invention aims to provide a thermal protection coating of a centrifuge for rock wool wire drawing and a preparation method thereof, aims to solve the problems of poor CMAS corrosion resistance, poor heat insulation effect, poor high-temperature stability and the like in the working process of the centrifuge for rock wool wire drawing, and obtains a thermal protection coating material for improving the CMAS corrosion resistance, the high-temperature resistance and the thermal insulation property of the centrifuge.
The invention adopts the following technical scheme: a preparation method of a thermal protection coating of a centrifuge for rock wool drawing comprises the following steps:
performing surface pretreatment on a working part of a centrifugal machine;
preparing a bonding layer on the working part after surface pretreatment by adopting a supersonic flame spraying method;
preparing a self-healing heat insulation coating on the bonding layer by adopting an atmospheric plasma spraying method;
brushing an anti-corrosion layer on the self-healing heat insulation coating and drying;
wherein the self-healing thermal insulation coating is prepared from spherical rare earth tantalate (RETaO) 4 And diboron trioxide B 2 O 3 RE is one of Y, La, Nd, Pm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and the spherical rare earth tantalate RETaO 4 The mass ratio of the boron trioxide to the boron trioxide is (8-10): 1.
Preferably, the bonding layer is NiCrAlY or NiCoCrAlY, and the thickness of the bonding layer is 20-70 μm.
Preferably, the technological parameters of the supersonic flame spraying method are as follows:
the maximum temperature of a working part is 150-350 ℃, the gun speed of an x-axis spray gun is 50-700 mm/s, the gun speed of a y-axis spray gun is 50-400 mm/s, the step pitch of the spray gun is 5-10 mm, the gun pitch of the spray gun is 0-380 mm, the pressure of a combustion chamber is 0-150 Pa, the powder feeding speed is 4-10 rpm, the oxygen flow is 500-1900 scfh, the carrier gas flow is 0-25 scfh, the water inlet temperature is 0-30 ℃, and the water return temperature is not higher than 55.5 ℃.
Preferably, the process parameters of the atmospheric plasma spraying method are as follows:
the maximum temperature of a working part is 150-350 ℃, the gun speed of an x-axis spray gun is 1000-1800 mm/s, the gun speed of a y-axis spray gun is 200-400 mm/s, the step pitch of the spray gun is 5-10 mm, the gun pitch of the spray gun is 90-200 mm, the system voltage is 200-250V, the current is 300-400A, the power is 70-100W, the powder feeding speed is 5-8 rpm, the argon flow is 100-200 scfh, the hydrogen flow is 20-60 scfh, the nitrogen flow is 60-210 scfh, and the carrier gas flow is 0-40 scfh.
Preferably, the anti-corrosion layer comprises one or more of aluminum titanium carbide, aluminum vanadium titanium, chromium titanium aluminum, titanium aluminum nitride, molybdenum aluminum carbide, niobium aluminum carbide and titanium carbide;
before brushing the anti-corrosion layer, mixing the raw materials with ethanol according to the mass ratio (1-2): (1-2) mixing to prepare slurry.
Preferably, the thickness of the anti-corrosion layer is 10-500 μm.
The other technical scheme of the invention is as follows: a thermal protection coating of a centrifuge for rock wool drawing is prepared by adopting the preparation method.
Preferably, the thickness of the protective coating is 160-770 μm.
The invention has the beneficial effects that: the invention utilizes rare earth tantalate RETaO 4 As a corrosion-resistant thermal barrier coating material, a thermal protection coating is prepared on the working part of the centrifuge for drawing the rock wool, so that the working part of the centrifuge has excellent high-temperature stability and thermal barrier performance, and meanwhile, the coating has a self-healing function, has strong corrosion resistance and oxidation resistance, avoids cracking and falling of the coating, and prolongs the service life of the centrifuge.
Drawings
FIG. 1 YbTaO in example 1 of the invention 4 Scanning electron microscope images after CMAS test for 2h at 1400 ℃;
FIG. 2 SmTaO in comparative example 1 of the present invention 4 Scanning electron microscope images after CMAS test for 2h at 1400 ℃;
FIG. 3 YbTaO in comparative example 2 of the invention 4 +SmTaO 4 Scanning electron microscope images after CMAS test for 2h at 1400 ℃;
FIG. 4 is a scanning electron micrograph of YSZ of comparative example 3 of the present invention after 2 hours of CMAS testing at 1400 ℃.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention discloses a preparation method of a thermal protection coating of a centrifugal machine for rock wool wire drawing, which comprises the following steps: performing surface pretreatment on a working part of a centrifugal machine; preparing a bonding layer on the working part subjected to surface pretreatment by adopting a supersonic velocity flame spraying method (HVOF); preparing a self-healing heat-insulating coating on the bonding layer by adopting an atmospheric plasma spraying method (APS); brushing an anti-corrosion layer on the self-healing heat insulation coating and drying; wherein the self-healing thermal insulation coating is prepared from spherical rare earth tantalate (RETaO) 4 And a low-melting point oxide diboron trioxide B 2 O 3 RE is Y, La, Nd, Pm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, LuSpherical rare earth tantalate RETaO 4 The mass ratio of the boron trioxide to the boron trioxide is (8-10): 1.
The invention utilizes rare earth tantalate RETaO 4 As a corrosion-resistant thermal barrier coating material, a thermal protection coating is prepared on the working part of the centrifuge for drawing the rock wool, so that the working part of the centrifuge has excellent high-temperature stability and thermal barrier performance, and meanwhile, the coating has a self-healing function, has strong corrosion resistance and oxidation resistance, avoids cracking and falling of the coating, and prolongs the service life of the centrifuge.
The invention aims to solve the problems of poor CMAS corrosion resistance, poor heat insulation effect, poor high-temperature stability and the like in the working process of a centrifugal machine for drawing rock wool, and the thermal protection coating material for improving the CMAS corrosion resistance, the high-temperature resistance and the thermal insulation property of the centrifugal machine is obtained. Rare earth tantalate RETaO 4 As a new material for thermal barrier coatings, the main advantages are: has low thermal conductivity (1.4-1.9 W.m) -1 ·K -1 900 ℃ and is obviously lower than 7-8YSZ (2.3-3.5 W.m) -1 ·K -1 900 ℃ C.), a high coefficient of thermal expansion (10-11X 10 -6 K -1 ) The high-temperature-resistant and high-temperature-resistant composite material has excellent high-temperature fracture toughness, smaller microhardness (5-6 GPa) and Young modulus (128-178GPa), better resistance to corrosion of the CMAS melt and excellent oxygen barrier performance.
In the embodiment of the invention, the working part of the centrifuge is firstly subjected to surface pretreatment by using sand blasting equipment. Specifically, before sandblasting, acetone is used for removing stains on the surface of the substrate, and then a layer of 30-50 mu m corundum sand is sprayed by sandblasting equipment to roughen the surface.
Next, a bonding layer is prepared on the pretreated work site. As the centrifuge is made of 316 stainless steel or 20 steel or nickel-based alloy or other types of steel materials, the bonding layer is made of NiCrAlY or NiCoCrAlY.
Specifically, the technological parameters of the supersonic flame spraying method are as follows: the maximum temperature of a working part is 150-350 ℃, the gun speed of an x-axis spray gun is 50-700 mm/s, the gun speed of a y-axis spray gun is 50-400 mm/s, the step pitch of the spray gun is 5-10 mm, the gun pitch of the spray gun is 0-380 mm, the pressure of a combustion chamber is 0-150 Pa, the powder feeding speed is 4-10 rpm, the oxygen flow is 500-1900 scfh, the carrier gas flow is 0-25 scfh, the water inlet temperature is 0-30 ℃, the water return temperature is not higher than 55.5 ℃, and finally the thickness of the prepared bonding layer is 20-70 mu m.
And then, preparing a self-healing heat insulation coating on the bonding layer, wherein the purity of the raw material of the self-healing heat insulation coating is more than 99.99%, the particle size is 45-90 mu m, the sphericity is more than 93%, the fluidity is 30-60 s/50g, and the thickness of the coating is 100-150 mu m.
Boron trioxide B 2 O 3 The coating is an oxide material with low melting point (450 ℃), has good fluidity when being melted, can fill up pores and cracks in the coating at high temperature, heal the cracks in the coating, can block the further expansion of the cracks, and also plays a certain role in inhibiting CMAS corrosion.
Specifically, the process parameters of the atmospheric plasma spraying method are as follows: the maximum temperature of a working part is 150-350 ℃, the gun speed of an x-axis spray gun is 1000-1800 mm/s, the gun speed of a y-axis spray gun is 200-400 mm/s, the step pitch of the spray gun is 5-10 mm, the gun pitch of the spray gun is 90-200 mm, the system voltage is 200-250V, the current is 300-400A, the power is 70-100W, the powder feeding speed is 5-8 rpm, the argon flow is 100-200 scfh, the hydrogen flow is 20-60 scfh, the nitrogen flow is 60-210 scfh, and the carrier gas flow is 0-40 scfh.
And finally, brushing an anti-corrosion layer and drying. Preferably, the corrosion resistant layer comprises aluminum titanium carbide (Ti) 3 AlC 2 And Ti 2 AlC), aluminun (V) 2 AlC), chromium titanium aluminum (Cr) 2 AlC), titanium aluminum nitride (Ti) 2 AlN, molybdenum aluminum carbide (Mo) 3 AlC 2 ) Niobium aluminum carbide (Nb) 2 AlC) and titanium carbide (Ti) 3 C 2 And Ti 2 C) One or more of (a). Before brushing the anti-corrosion layer, mixing the raw materials with ethanol according to the mass ratio (1-2): (1-2) mixing to prepare slurry. Preferably, the thickness of the anti-corrosion layer is 10-500 μm.
The anti-corrosion layer is composed of aluminum titanium carbide (Ti) 3 AlC 2 And Ti 2 AlC), aluminun (V) 2 AlC), chromium titanium aluminum (Cr) 2 AlC), titanium aluminum nitride (Ti) 2 AlN, molybdenum aluminum carbide (Mo) 3 AlC 2 ) Niobium aluminum carbide (Nb) 2 AlC), titanium carbide (Ti) 3 C 2 And Ti 2 C) Titanium carbo-silicide (Ti) 3 SiC 2 ) The corrosion-resistant coating has the advantages of low density, high strength, good corrosion resistance and thermal shock resistance, and a large amount of Ti and Al contained in the corrosion-resistant coating, and when the corrosion-resistant coating is contacted with CMAS in a molten state, V, Al, Cr, Nb, Mo and Ti migrate into a melt to promote the crystallization of the CMAS melt and prevent the infiltration of the CMAS, so that the corrosion-resistant coating has the potential of serving as a corrosion-resistant protective layer of the CMAS.
The drying is carried out in vacuum or atmosphere with vacuum degree<(1～9)×10 -3 Or introducing argon or nitrogen, and drying for 48-120 h.
The invention adopts diboron trioxide B 2 O 3 As a healing agent, the coating can fill pores and cracks in the coating at high temperature, heal the cracks in the coating, prevent the further expansion of the cracks and play a certain role in inhibiting CMAS and oxygen. The anti-corrosion layer has the advantages that the anti-corrosion layer is low in density, high in strength, good in corrosion resistance and thermal shock resistance, and contains a large amount of Ti and Al, when the anti-corrosion layer is in contact with CMAS in a molten state, V, Al, Cr, Nb, Mo and Ti migrate into a melt, crystallization of the CMAS melt is promoted, and permeation of the CMAS is prevented, so that the anti-corrosion layer has the potential of serving as a CMAS anti-corrosion protective layer. The rare earth tantalate in the invention has excellent thermal insulation and CMAS resistance, and can enhance the CMAS resistance of the coating and prolong the service life of the coating under the action of the corrosion-resistant layer.
The invention also discloses a thermal protection coating of the centrifuge for rock wool wire drawing, which is prepared by adopting the preparation method, and preferably, the thickness of the protection coating is 160-770 micrometers. The thermal protection coating has the effects of CMAS corrosion resistance, thermal shock resistance and self-healing.
Example 1:
the corrosion-resistant self-healing thermal protection coating material of the centrifugal machine for rock wool drawing and the preparation method thereof in the embodiment specifically comprise the following steps:
removing stains on the surface of a substrate of the centrifuge by using acetone, spraying a layer of 30-micron corundum sand on the surface of the substrate by using a sand blasting device to roughen the surface, spraying a 70-micron NiCrAlY bonding layer by using supersonic flame spraying (HVOF), wherein the gun speed of an x-axis spray gun of the supersonic flame spraying (HVOF) is 400mm/s, the gun speed of a y-axis spray gun is 300mm/s, the step pitch of the spray gun is 5mm, the gun pitch of the spray gun is 350mm, the pressure of a combustion chamber is 128Pa, the powder feeding speed is 4.5rpm, the oxygen flow rate is 1850scfh, the carrier gas flow rate is 23scfh, the water inlet temperature is 30 ℃, and the water return temperature is not higher than 55.5 ℃.
According to the mass ratio of 8:1 weighing rare earth tantalate YbTaO 4 Mixing with diboron trioxide, and spraying a layer of 150-micron YbTaO by adopting an atmospheric plasma spraying method 4 +B 2 O 3 The self-healing thermal insulation coating of (1). The gun speed of an x-axis spray gun for atmospheric plasma spraying is 1800mm/s, the gun speed of a y-axis spray gun is 400mm/s, the step distance of the spray gun is 6mm, the gun distance of the spray gun is 115mm, the system voltage is 218V, the current 364A, the power is 80W, the powder feeding speed is 8rpm, the argon flow is 180scfh, the hydrogen flow is 38scfh, the nitrogen flow is 90scfh, and the carrier gas flow is 40 scfh.
Titanium aluminum (Ti) carbide 3 AlC 2 And Ti 2 AlC) and absolute ethyl alcohol according to a mass ratio of 1:2 to form a slurry, coating the slurry on a thermal insulation layer to prepare a 500 mu m anti-corrosion layer, placing the anti-corrosion layer in an atmosphere furnace (argon), preserving the heat at 150 ℃ for 48h, and taking out the anti-corrosion layer. The total thickness of the adhesive layer, the thermal insulation layer and the corrosion resistant layer prepared by the above was 750 μm.
FIG. 1 shows an anti-corrosion layer (Ti) 3 AlC 2 And Ti 2 AlC) + self-healing heat-insulating coating (YbTaO) 4 +B 2 O 3 ) According to a scanning electron microscope image after a CMAS corrosion experiment is carried out for 2 hours at 1400 ℃, a marking point A of the scanning electron microscope in the image 1 is a coating surface layer, B is a bonding layer, and C is a substrate, and energy spectrum analysis shows that no CMAS component is detected in the coating, so that the coating prepared by the method disclosed by the invention shows good CMAS corrosion resistance. As shown in Table 1, the heat-insulating coating contains only Yb, Ta, B, O and other elements, and the sum of the atomic contents is not 100%, which indicates that YbTaO 4 +B 2 O 3 The method has the advantages that the method has a vacancy defect, a non-stoichiometric ratio exists, the crystal structure is distorted, the heat conductivity of the coating is favorably reduced, and the heat insulation performance of the coating is improved.
TABLE 1
Comparative example 1:
the difference from the example 1 is that the self-healing thermal insulation coating is SmTaO 4 +B 2 O 3 FIG. 2 shows an anti-corrosion layer (Ti) 3 AlC 2 And Ti 2 AlC) + self-healing thermal insulation coating (SmTaO) 4 +B 2 O 3 ) Performing CMAS corrosion experiment at 1400 deg.C for 2h, analyzing element components by energy spectrum, and detecting Al in the thermal insulation coating 2 O 3 、MgO、SiO 2 And CaO component, in comparison to example 1, illustrates that the self-healing thermal insulation coating prepared in accordance with the present invention is SmTaO 4 +B 2 O 3 Exhibit low resistance to CMAS corrosion.
Comparative example 2:
the difference from example 1 is that the self-healing thermal insulation coating is YbTaO 4 +SmTaO 4 +B 2 O 3 The mass ratio of the components is 4: 4: 1.
FIG. 3 is a scanning electron microscope image of the sample after being subjected to a CMAS corrosion experiment at 1400 ℃ for 2h, wherein a mark point A of the scanning electron microscope in FIG. 3 is a coating surface layer, a mark point B is a matrix, and the energy spectrum analysis shows that Al is not detected as shown in Table 2 2 O 3 、MgO、SiO 2 And a CaO component, indicating that the coating prepared by the invention shows better CMAS corrosion resistance. The sum of the atomic percentages in Table 2 is not 100%, indicating YbTaO 4 +SmTaO 4 +B 2 O 3 Has vacancy defects, non-stoichiometric ratio and distortion of crystal structure, is favorable for reducing the heat conductivity of the coating and improving the heat insulation performance of the coating,
TABLE 2
Comparative example 3:
the difference from the example 1 is that the self-healing thermal insulation coating is 8YSZ + B 2 O 3 As shown in fig. 4, which is a scanning electron microscope image and a power spectrum image of 8YSZ after 2h of CMAS corrosion test at 1400 ℃, it was found that 8YSZ shows poor resistance when corroded and penetrated by CMAS melt, 8YSZ is completely penetrated by CMAS melt, and the coating is partially dissolved in CMAS.
Example 2:
removing stains on the surface of a centrifuge matrix by using acetone, spraying a layer of 30-micron corundum sand on the surface of the centrifuge matrix by using sand blasting equipment to roughen the surface, and then spraying a layer of 20-micron NiCrAlY bonding layer by using supersonic flame spraying (HVOF), wherein the gun speed of an x-axis spray gun of the supersonic flame spraying (HVOF) is 400mm/s, the gun speed of a y-axis spray gun is 300mm/s, the step pitch of the spray gun is 5mm, the gun pitch of the spray gun is 350mm, the pressure of a combustion chamber is 128Pa, the powder feeding speed is 4.5rpm, the oxygen flow rate is 1850scfh, the carrier gas flow rate is 23scfh, the water inlet temperature is 30 ℃, the water return temperature is not higher than 55.5 ℃, and the thickness of the bonding layer is 20-70 microns.
Mixing rare earth tantalate LuTaO 4 (particle size of 70 to 90 μm) and boron trioxide B 2 O 3 (the particle size is 70-90 mu m) according to a mass ratio of 8:1, and a layer of 100 mu m rare earth tantalate/boron trioxide self-healing heat-insulating coating is sprayed by adopting an atmospheric plasma spraying method, wherein the gun speed of an x-axis spray gun is 1800mm/s, the gun speed of a y-axis spray gun is 400mm/s, the step distance of the spray gun is 6mm, the gun distance of the spray gun is 115mm, the system voltage is 218V, the current is 364A, the power is 80W, the powder feeding speed is 8rpm, the argon flow rate is 180scfh, the hydrogen flow rate is 38scfh, the nitrogen flow rate is 90scfh, and the carrier gas flow rate is 40 scfh.
Vanadium titano-aluminum (V) 2 AlC) and absolute ethyl alcohol are mixed into slurry according to the mass ratio of 1:2, the slurry is coated on a thermal insulation layer to prepare an anti-corrosion layer with the thickness of 300 mu m, and the anti-corrosion layer is placed in an atmosphere furnace (argon), kept at the temperature of 150 ℃ for 100h and then taken out. The total thickness of the adhesive layer, the thermal insulation layer and the corrosion resistant layer prepared by the above was 450 μm.
After the coating is subjected to a CMAS corrosion experiment at 1400 ℃ for 2h, a trace amount of Al in the coating is found 2 O 3 、MgO、SiO 2 And a CaO component.
Comparative example 4:
the difference from example 2 is that the thickness of the corrosion resistant layer is 200 μm, and Al in the coating is found after 2h of CMAS corrosion test at 1400 DEG C 2 O 3 、MgO、SiO 2 And increased CaO content, reduced corrosion resistance, indicating that the thickness of the corrosion resistant layer affects performance.
Comparative example 5:
the difference from example 2 is that the thickness of the corrosion resistant layer is 400 μm, and after performing the CMAS corrosion test at 1400 ℃ for 2h, no Al is detected in the coating 2 O 3 、MgO、SiO 2 And CaO, indicating a thickness of the corrosion resistant layer of>When the thickness is 400 mu m, the corrosion resistance is higher.
Claims (8)
1. A preparation method of a thermal protection coating of a centrifuge for rock wool drawing is characterized by comprising the following steps:
performing surface pretreatment on a working part of a centrifugal machine;
preparing a bonding layer on the working part after surface pretreatment by adopting a supersonic flame spraying method;
preparing a self-healing heat insulation coating on the bonding layer by adopting an atmospheric plasma spraying method;
brushing an anti-corrosion layer on the self-healing heat insulation coating and drying;
wherein the self-healing thermal insulation coating is prepared from spherical rare earth tantalate (RETaO) 4 And boron trioxide B 2 O 3 RE is one of Y, La, Nd, Pm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and the spherical rare earth tantalate RETaO 4 The mass ratio of the boron trioxide to the boron trioxide is (8-10): 1.
2. The method for preparing the thermal protection coating of the centrifuge for drawing the rock wool according to claim 1, wherein the bonding layer is NiCrAlY or NiCoCrAlY, and the thickness of the bonding layer is 20-70 μm.
3. The preparation method of the thermal protection coating of the centrifuge for rock wool drawing according to claim 2, wherein the process parameters of the supersonic flame spraying method are as follows:
the maximum temperature of the working part is 150-350 ℃, the gun speed of an x-axis spray gun is 50-700 mm/s, the gun speed of a y-axis spray gun is 50-400 mm/s, the step pitch of the spray gun is 5-10 mm, the gun pitch of the spray gun is 0-380 mm, the pressure of a combustion chamber is 0-150 Pa, the powder feeding speed is 4-10 rpm, the oxygen flow is 500-1900 scfh, the carrier gas flow is 0-25 scfh, the water inlet temperature is 0-30 ℃, and the water return temperature is not higher than 55.5 ℃.
4. The preparation method of the thermal protection coating of the centrifuge for rock wool drawing according to claim 3, wherein the process parameters of the atmospheric plasma spraying method are as follows:
the maximum temperature of the working part is 150-350 ℃, the gun speed of an x-axis spray gun is 1000-1800 mm/s, the gun speed of a y-axis spray gun is 200-400 mm/s, the step pitch of the spray gun is 5-10 mm, the gun pitch of the spray gun is 90-200 mm, the system voltage is 200-250V, the current is 300-400A, the power is 70-100W, the powder feeding speed is 5-8 rpm, the argon flow is 100-200 scfh, the hydrogen flow is 20-60 scfh, the nitrogen flow is 60-210 scfh, and the carrier gas flow is 0-40 scfh.
5. The method for preparing the thermal protection coating of the centrifuge for drawing the rock wool according to the claim 3 or 4, wherein the anti-corrosion layer comprises one or more of aluminum titanium carbide, aluminum vanadium titanium, chromium titanium aluminum, titanium aluminum nitride, molybdenum aluminum carbide, niobium aluminum carbide and titanium carbide;
before brushing the anti-corrosion layer, mixing the raw materials with ethanol according to the mass ratio (1-2): (1-2) mixing to prepare slurry.
6. The method for preparing the thermal protection coating of the centrifuge for drawing the rock wool according to claim 5, wherein the thickness of the anti-corrosion layer is 10-500 μm.
7. A thermal protection coating of a centrifuge for rock wool drawing, which is prepared by the preparation method of any one of claims 1 to 6.
8. The thermal protection coating for the centrifuge for drawing the rock wool as claimed in claim 7, wherein the thickness of the protection coating is 160-770 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890123.1A CN115110019A (en) | 2022-07-27 | 2022-07-27 | Thermal protection coating of centrifugal machine for rock wool drawing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890123.1A CN115110019A (en) | 2022-07-27 | 2022-07-27 | Thermal protection coating of centrifugal machine for rock wool drawing and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115110019A true CN115110019A (en) | 2022-09-27 |
Family
ID=83335032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210890123.1A Pending CN115110019A (en) | 2022-07-27 | 2022-07-27 | Thermal protection coating of centrifugal machine for rock wool drawing and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115110019A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116285468A (en) * | 2023-03-09 | 2023-06-23 | 北京交通大学 | Al (aluminum) alloy 2 O 3 And Ti is 2 AlC composite wave-absorbing coating and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09217163A (en) * | 1996-02-14 | 1997-08-19 | Tocalo Co Ltd | Glassy thermal spray material coated member having self-repairing operation and production thereof |
| CN106966762A (en) * | 2016-06-03 | 2017-07-21 | 北京航空航天大学 | A kind of preparation method of aero-engine hot junction component Environmental Barrier Coatings on Si-based Ceramics |
| CN107428623A (en) * | 2013-09-20 | 2017-12-01 | Hrl实验室有限责任公司 | Heat and environment barrier coating for ceramic substrate |
| CN111004990A (en) * | 2019-12-04 | 2020-04-14 | 天津大学 | MAX phase coating for thermal barrier coating anti-melting CMAS corrosion and thermal spraying preparation method |
| CN111960837A (en) * | 2020-08-28 | 2020-11-20 | 昆明理工大学 | Preparation method of rare earth tantalate or niobate thermal barrier coating |
-
2022
- 2022-07-27 CN CN202210890123.1A patent/CN115110019A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09217163A (en) * | 1996-02-14 | 1997-08-19 | Tocalo Co Ltd | Glassy thermal spray material coated member having self-repairing operation and production thereof |
| CN107428623A (en) * | 2013-09-20 | 2017-12-01 | Hrl实验室有限责任公司 | Heat and environment barrier coating for ceramic substrate |
| CN106966762A (en) * | 2016-06-03 | 2017-07-21 | 北京航空航天大学 | A kind of preparation method of aero-engine hot junction component Environmental Barrier Coatings on Si-based Ceramics |
| CN111004990A (en) * | 2019-12-04 | 2020-04-14 | 天津大学 | MAX phase coating for thermal barrier coating anti-melting CMAS corrosion and thermal spraying preparation method |
| CN111960837A (en) * | 2020-08-28 | 2020-11-20 | 昆明理工大学 | Preparation method of rare earth tantalate or niobate thermal barrier coating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116285468A (en) * | 2023-03-09 | 2023-06-23 | 北京交通大学 | Al (aluminum) alloy 2 O 3 And Ti is 2 AlC composite wave-absorbing coating and preparation method thereof |
| CN116285468B (en) * | 2023-03-09 | 2024-06-11 | 北京交通大学 | Al (aluminum) alloy2O3And Ti is2AlC composite wave-absorbing coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2970015B1 (en) | Silicon carbide ceramic matrix composites containing a rare earth compound | |
| CN101768380B (en) | Thermal protection coating with component gradient change and preparation method | |
| Lee et al. | Refractory oxide coatings on SiC ceramics | |
| CN107032796B (en) | Self-healing SiC/ZrSi2-MoSi2Coating material and preparation method | |
| Wang et al. | Improving oxidation resistance of MoSi2 coating by reinforced with Al2O3 whiskers | |
| CN111004990B (en) | MAX phase coating for thermal barrier coating anti-melting CMAS corrosion and thermal spraying preparation method | |
| CN105039894B (en) | A kind of anti-CMAS ceramic layer and its slurry process preparation method | |
| CN103980006B (en) | Component surface has barrier of environment coating and the preparation method of self-healing capability | |
| He et al. | Thermal corrosion behavior of Yb4Hf3O12 ceramics exposed to calcium-ferrum-alumina-silicate (CFAS) at 1400° C | |
| CN115110019A (en) | Thermal protection coating of centrifugal machine for rock wool drawing and preparation method thereof | |
| CN112279685A (en) | MTaO with environmental thermal barrier coating4Graphite-based composite material and preparation method thereof | |
| Zhang et al. | Cyclic oxidation performances of new environmental barrier coatings of HfO2-SiO2/Yb2Si2O7 coated SiC at 1375° C and 1475° C in the air environment | |
| Li et al. | Cyclic oxidation and water vapor corrosion behaviors of multi-layer environmental barrier coatings with HfO2-Si bond coat for SiCf/SiC | |
| CN106966763B (en) | Fibre-reinforced composite material surface coating and preparation method thereof under a kind of engine environmental | |
| Cui et al. | Preparation and water-vapour corrosion behaviour of BSAS environmental barrier coatings fabricated on ceramic matrix composites | |
| Chen et al. | Wet-oxygen corrosion resistance and mechanism of bi-layer Mullite/SiC coating for Cf/SiC composites | |
| Hu et al. | Oxidation resistance of SiCf/SiC composites with three-layer environmental barrier coatings up to 1360° C in air atmosphere | |
| Dong et al. | Improved water vapor resistance of environmental barrier coatings densified by aluminum infiltration | |
| Li et al. | Thermal shock behavior and oxidation resistance of novel SiC nanowires+ Si/Yb2Si2O7-Si/Yb2Si2O7 environmental barrier coatings | |
| CN114774834B (en) | Preparation method of high-entropy rare earth aluminate thermal protection coating | |
| JP4031244B2 (en) | Corrosion resistant ceramics | |
| CN111875416A (en) | Ceramic-based abradable seal material, coating, composite coating and preparation method | |
| Yu et al. | Oxidation behavior and cracking evolution of atmospheric plasma spraying Si and 60Si-40HfO2 bond coats at 1400° C | |
| CN115074654A (en) | CMAS corrosion resistant self-healing thermal barrier coating and preparation method thereof | |
| Duan et al. | Thermal cycle and water oxygen performance of multi-layered Y3Al5O12/Yb2SiO5/Yb2Si2O7 thermal/environmental barrier coatings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |