CN108841326B - Wear-resistant and corrosion-resistant air valve plate of air conditioner compressor and spraying method - Google Patents
Wear-resistant and corrosion-resistant air valve plate of air conditioner compressor and spraying method Download PDFInfo
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- CN108841326B CN108841326B CN201810507001.3A CN201810507001A CN108841326B CN 108841326 B CN108841326 B CN 108841326B CN 201810507001 A CN201810507001 A CN 201810507001A CN 108841326 B CN108841326 B CN 108841326B
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- 238000005260 corrosion Methods 0.000 title claims abstract description 65
- 230000007797 corrosion Effects 0.000 title claims abstract description 59
- 238000005507 spraying Methods 0.000 title claims description 48
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical class [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920006026 co-polymeric resin Polymers 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 11
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 239000003085 diluting agent Substances 0.000 claims abstract description 7
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 7
- 239000002562 thickening agent Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 10
- 239000003921 oil Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000011282 treatment Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 230000003750 conditioning effect Effects 0.000 claims description 5
- 238000005554 pickling Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims description 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical group CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000376 reactant Substances 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 2
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical group CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 claims description 2
- XBIUWALDKXACEA-UHFFFAOYSA-N 3-[bis(2,4-dioxopentan-3-yl)alumanyl]pentane-2,4-dione Chemical compound CC(=O)C(C(C)=O)[Al](C(C(C)=O)C(C)=O)C(C(C)=O)C(C)=O XBIUWALDKXACEA-UHFFFAOYSA-N 0.000 claims description 2
- OXEZLYIDQPBCBB-UHFFFAOYSA-N 4-(3-piperidin-4-ylpropyl)piperidine Chemical compound C1CNCCC1CCCC1CCNCC1 OXEZLYIDQPBCBB-UHFFFAOYSA-N 0.000 claims description 2
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical group CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 claims description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 2
- 238000004821 distillation Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 239000005077 polysulfide Substances 0.000 claims description 2
- 229920001021 polysulfide Polymers 0.000 claims description 2
- 150000008117 polysulfides Polymers 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 150000003384 small molecules Chemical class 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 2
- VFBJXXJYHWLXRM-UHFFFAOYSA-N 2-[2-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]ethylsulfanyl]ethyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCCSCCOC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 VFBJXXJYHWLXRM-UHFFFAOYSA-N 0.000 claims 1
- 239000003822 epoxy resin Substances 0.000 abstract description 9
- 229920000647 polyepoxide Polymers 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 6
- 239000011159 matrix material Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 230000009881 electrostatic interaction Effects 0.000 abstract description 2
- 125000000524 functional group Chemical group 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 15
- 239000007789 gas Substances 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/10—Block or graft copolymers containing polysiloxane sequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
-
- 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
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- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses an air valve plate of an air conditioner compressor, which comprises a valve plate body, wherein an abrasion-resistant and corrosion-resistant film is coated on the valve plate body, and the abrasion-resistant and corrosion-resistant film consists of epoxy-organic silicon copolymer resin, modified graphene, modified silicon carbide, a curing agent, a thickening agent, an antioxidant and an active diluent. Compared with the prior art, the valve plate has the advantages of high temperature resistance, wear resistance, chemical corrosion resistance, good adhesion resistance and the like, the epoxy-organosilicon copolymer resin enhances the toughness, corrosion resistance and high temperature resistance of the epoxy resin composition, the modified silicon carbide and the modified silicon carbide are self-assembled through electrostatic interaction, a layer of graphene oxide is attached to the surface of silicon carbide particles, a large number of oxygen-containing organic functional groups of the graphene oxide react with a matrix in the epoxy resin to generate chemical bonds, the overall compactness of a coating is enhanced, almost no gaps exist in a joint surface between the graphene oxide and the epoxy resin, and the corrosion resistance is effectively enhanced.
Description
Technical Field
The invention relates to the field of compressors, in particular to an air valve plate of an air conditioner compressor with wear resistance and corrosion resistance and a spraying method.
Background
The gas valve is a component which is arranged on a cylinder of the compressor and controls gas to enter and exit, and the economical efficiency and the reliability of the compressor are directly influenced by the performance of the gas valve. The air valve of the compressor has various structural types, and the air valve which is most widely applied to domestic large and medium-sized compressors is an air valve consisting of a valve seat, a valve plate, a spring, a lift limiter and the like. The working medium of the compressor is generally corrosive, e.g. containing H2S、CO2And the material fatigue limit of the valve plate is obviously reduced by the aid of gas media, and meanwhile, the valve plate is easily damaged by scouring of the valve plate by airflow at a high speed, so that corrosion and pockmarks or pits are generated. In addition, the medium of the compressor generally has certain humidity, and especially when the effect of the oil-water separator is reduced, the lubricating oil cannot be separated completelyThe water separated out after the compressor gas cooler is mixed in the gas, when the gas flows through the gas valve along with the gas, a part of the water is adhered to the sealing part of the valve seat, so that a liquid film is formed on the surfaces of the valve seat and parts such as a lift limiter, a valve plate, a spring and the like, and the generated adhesive force hinders the movement of the valve plate. The valve plate is delayed to be opened or closed, the airflow jacking force is increased, and when the oil-water content is higher and the adhesive force is larger, the influence on the motion rule of the valve plate is larger, and the service life of the valve plate of the air valve is seriously influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides an air conditioner compressor blade with wear resistance and corrosion resistance and a spraying method, which aim to solve the problems of prolonging the service life, having a good use state under various severe environments and having excellent wear resistance and corrosion resistance.
The technical scheme adopted by the invention is as follows: the valve plate of the air valve of the air conditioner compressor with wear resistance and corrosion resistance comprises a valve plate body, wherein a wear-resistant and corrosion-resistant film is coated on the valve plate body, and the valve plate is characterized in that the wear-resistant and corrosion-resistant film is composed of the following raw materials in parts by weight: 40-60 parts of epoxy-organic silicon copolymer resin, 3-12 parts of modified graphene, 5-10 parts of modified silicon carbide, 30-50 parts of curing agent, 4-8 parts of thickening agent, 2-4 parts of antioxidant and 8-15 parts of reactive diluent.
Preferably, the raw materials comprise the following components in parts by weight: 45 parts of epoxy-organic silicon copolymer resin, 8 parts of modified graphene, 6 parts of modified silicon carbide, 33 parts of curing agent, 7 parts of film-forming additive, 5 parts of thickening agent, 3 parts of antioxidant, 3 parts of stabilizing agent and 10 parts of active diluent.
Preferably, the epoxy-silicone copolymer resin is obtained by the following method: putting dimethyl diethoxysilane and hydrochloric acid into a reaction kettle, heating to 80-110 ℃, controlling the stirring speed to be 200-500 r/min, dropwise adding deionized water while stirring, reacting for 1-3 h under heat preservation after dropwise adding, then carrying out reduced pressure distillation, controlling the pressure to be 0.06MPa, and removing small molecules generated in the reaction process to obtain an organic silicon prepolymer; putting bisphenol A epoxy resin and an organic silicon prepolymer into a reaction kettle, adding aluminum acetylacetonate, raising the temperature of the system to 100-160 ℃, controlling the stirring speed to 300-600 r/min, and reacting for 8 hours at constant temperature to obtain the epoxy-organic silicon copolymer resin.
Preferably, the modified graphene is obtained by the following method: placing graphene in a silane coupling agent solution, performing ultrasonic dispersion for 1-3 hours to obtain a primary mixture, then placing the primary mixture in a water bath kettle, raising the temperature of the system to 50-70 ℃, controlling the stirring speed to be 300-400 r/min, after full reaction, filtering the reactant, collecting filter residues, respectively washing the filter residues with deionized water and ethanol for 3 times, removing unreacted coupling agent, and finally placing the filter residues in a vacuum drying environment at 120 ℃ for 12 hours to obtain the modified graphene.
Preferably, the modified silicon carbide is obtained by the following method: roasting silicon carbide at high temperature for 12h, cooling to room temperature, placing the silicon carbide into a mixed solution of hydrogen peroxide and concentrated sulfuric acid in a mass ratio of 1:3, reacting and soaking for 4h to obtain pretreated silicon carbide, then placing the pretreated silicon carbide into a silane coupling agent solution, ultrasonically dispersing for 0.5-2 h, raising the system temperature to 50-70 ℃, controlling the stirring speed to be 500-700 r/min, fully reacting, filtering the reactant, collecting filter residues, respectively cleaning the filter residues with deionized water and ethanol, and finally vacuum drying the cleaned filter residues to obtain the modified silicon carbide.
Preferably, the silane coupling agent solution is prepared by mixing 20 wt% of coupling agent KH-550, 72 wt% of ethanol and 8 wt% of deionized water.
Preferably, the curing agent is isophorone diamine or 1, 3-bis (4-piperidinyl) propane; the active diluent is propylene oxide phenyl ether or propylene oxide butyl ether.
Preferably, the thickening agent is dibutyl phthalate or polysulfide rubber; the antioxidant is dilauryl-3, 3' -thiodipropionate, 2-thiodiethylene bis [3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].
The spraying method of the air valve plate of the air conditioner compressor is characterized by comprising the following steps of:
step one, pretreatment before spraying: polishing, deoiling, pickling, washing, surface conditioning and phosphorizing the surface of the valve plate;
step two, spraying the wear-resistant corrosion-resistant film: preheating the valve plate pretreated in the step one, performing primary spraying on the valve plate by using Disk spraying, drying the valve plate after the spraying is finished, and performing multiple spraying and drying treatments after the surface of the valve plate is dried until the film reaches the required film thickness;
step three, heat treatment and solidification: and D, placing the valve plate sprayed in the step two into an oven for baking and curing, and then naturally cooling along with the oven to obtain a finished product.
Preferably, the oil removing process in the first step is to use NaOH and NaHCO in a volume ratio of 1:13The mixed alkali solution is used for removing oil stains on a valve plate, and the phosphating process specifically adopts high-temperature phosphating at 70-90 ℃ for treatment;
the spraying process conditions in the step two are as follows: the spraying amount is 20-35ml/s, the rotating speed of the rotary disc is 4000-;
the baking and curing conditions in the third step are as follows: keeping the temperature at 150 +/-5 ℃ for 0.5h, then continuously heating to 170 +/-5 ℃, keeping the temperature at the speed of less than or equal to 5 ℃/min, keeping the temperature for 1h, then naturally cooling to below 40 ℃ along with an oven, and taking out to obtain a finished product.
Has the advantages that: compared with the prior art, the air valve plate of the air conditioner compressor with wear resistance and corrosion resistance has the advantages of high temperature resistance, wear resistance, chemical corrosion resistance, good adhesion resistance and the like compared with a valve plate without a wear-resistant and corrosion-resistant film, the epoxy-organosilicon copolymer resin improves the corrosion resistance of the epoxy resin and simultaneously reduces the internal stress of the epoxy resin because the molecular chain segment of organosilicon is grafted to the epoxy resin molecules, the toughness, the corrosion resistance and the high temperature resistance of the epoxy resin composition are enhanced, the introduced modified silicon carbide is calcined at high temperature and oxidized in a strong oxidant, so that the silicon carbide surface is oxidized to carry hydroxyl and then is subjected to graft reaction with a silane coupling agent to form the air valve plate, the modified graphene and the modified silicon carbide are subjected to self-assembly through electrostatic interaction, a layer of graphene oxide is attached to the surface of silicon carbide particles, and a large amount of oxygen-containing organic functional groups contained on the surface of the air valve plate can react with a matrix in the epoxy resin to, therefore, the overall compactness of the coating is enhanced, and the joint surface between the graphene oxide and the epoxy resin is almost free of gaps, so that the corrosion resistance is effectively enhanced; the wear-resistant corrosion-resistant film has the advantages that the curing temperature is low, the valve plate can be kept not to deform to the greatest extent, the thickness of the coating is thick and is generally controlled to be 30-50 microns, the corrosion resistance and the wear resistance of the coating are remarkably improved, and the corrosion resistance, the wear resistance and the high temperature resistance of the valve plate can be effectively enhanced by the wear-resistant corrosion-resistant film.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail below with reference to the accompanying tables and specific embodiments.
Wear-resistant and corrosion-resistant air valve plate of air-conditioning compressor
Example 1: preparation proportion of raw materials in wear-resistant and corrosion-resistant film of valve plate of air valve of wear-resistant and corrosion-resistant air conditioner compressor
The raw materials in the wear-resistant corrosion-resistant film are mixed according to the mass parts shown in the table 1 respectively to obtain the wear-resistant corrosion-resistant films I to III with different mixing ratios in 3.
TABLE 1 anti-wear and anti-corrosion film with different mixing ratio (in parts by weight)
Example 2: spraying method of wear-resistant and corrosion-resistant air valve plate of air conditioner compressor
Step one, pretreatment before spraying: polishing, deoiling, pickling, washing, surface conditioning and phosphorizing the surface of the valve plate; wherein the oil removing process comprises the step of using NaOH and NaHCO with the volume ratio of 1:13The mixed alkali solution is used for removing oil stains on a valve plate, and the phosphating process specifically adopts high-temperature phosphating at 70 ℃ for treatment;
step two, spraying the wear-resistant corrosion-resistant film: preheating the valve plate pretreated in the first step, and performing primary spraying on the valve plate by using Disk spraying, wherein the spraying process conditions are as follows: the spraying amount is 20ml/s, the rotating speed of a rotating disc is 4000r/min, the working voltage is 70KV, and the film thickness of the wear-resistant corrosion-resistant film I is 30 um; drying the valve plate after the spraying is finished, and performing multiple spraying and drying treatments after the surface of the valve plate is dried until the film reaches the required film thickness;
step three, heat treatment and solidification: and (3) putting the valve plate sprayed in the second step into an oven for baking and curing, keeping the curing temperature at 150 +/-5 ℃ for 0.5h, then continuously heating to 170 +/-5 ℃, keeping the temperature for 1h at the heating speed of less than or equal to 5 ℃/min, and then naturally cooling to below 40 ℃ along with the oven to be taken out, thus obtaining the wear-resistant and corrosion-resistant air conditioner compressor air valve plate I.
Example 3: spraying method of wear-resistant and corrosion-resistant air valve plate of air conditioner compressor
Step one, pretreatment before spraying: polishing, deoiling, pickling, washing, surface conditioning and phosphorizing the surface of the valve plate; wherein the oil removing process comprises the step of using NaOH and NaHCO with the volume ratio of 1:13The mixed alkali solution is used for removing oil stains on a valve plate, and the phosphating process specifically adopts high-temperature phosphating at 90 ℃ for treatment;
step two, spraying the wear-resistant corrosion-resistant film: preheating the valve plate pretreated in the first step, and performing primary spraying on the valve plate by using Disk spraying, wherein the spraying process conditions are as follows: the spraying amount is 35ml/s, the rotating speed of the rotating disc is 10000r/min, the working voltage is 100KV, and the film thickness of the wear-resistant corrosion-resistant film II is 40 um; drying the valve plate after the spraying is finished, and performing multiple spraying and drying treatments after the surface of the valve plate is dried until the film reaches the required film thickness;
step three, heat treatment and solidification: and (3) putting the valve plate sprayed in the second step into an oven for baking and curing, keeping the curing temperature at 150 +/-5 ℃ for 0.5h, then continuously heating to 170 +/-5 ℃, keeping the temperature for 1h at the heating speed of less than or equal to 5 ℃/min, and then naturally cooling to below 40 ℃ along with the oven to be taken out, thus obtaining the wear-resistant and corrosion-resistant air conditioner compressor air valve plate II.
Example 4: spraying method of wear-resistant and corrosion-resistant air valve plate of air conditioner compressor
Step one, pretreatment before spraying: polishing, deoiling, pickling, washing, surface conditioning and phosphorizing the surface of the valve plate; wherein the oil is removedThe working procedure is to use NaOH and NaHCO with the volume ratio of 1:13The mixed alkali solution is used for removing oil stains on a valve plate, and the phosphating process specifically adopts high-temperature phosphating at 85 ℃ for treatment;
step two, spraying the wear-resistant corrosion-resistant film: preheating the valve plate pretreated in the first step, and performing primary spraying on the valve plate by using Disk spraying, wherein the spraying process conditions are as follows: the spraying amount is 28ml/s, the rotating speed of the rotating disc is 8000r/min, the working voltage is 90KV, and the film thickness of the wear-resistant corrosion-resistant film III is 50 um; drying the valve plate after the spraying is finished, and performing multiple spraying and drying treatments after the surface of the valve plate is dried until the film reaches the required film thickness;
step three, heat treatment and solidification: and (3) putting the valve plate sprayed in the second step into an oven for baking and curing, keeping the curing temperature at 150 +/-5 ℃ for 0.5h, then continuously heating to 170 +/-5 ℃, keeping the temperature for 1h at the heating speed of less than or equal to 5 ℃/min, and then naturally cooling to below 40 ℃ along with the oven to be taken out, thus obtaining the wear-resistant and corrosion-resistant air conditioner compressor air valve plate III.
Secondly, respectively carrying out performance test comparison on the air valve plate of the air conditioner compressor prepared in each embodiment:
test method
1. General conditions of the test
Environmental conditions of the test site
Standard state: the temperature is 23 +/-2 ℃, and the relative humidity is 60 +/-5%.
Non-standard state: the temperature is 5-35 ℃, and the relative humidity is 45-85%.
2. Hardness test
Using MTS NANO G200 NANO indenter, Berkovich diamond indenter, to eliminate the influence of substrate effect and surface roughness, the maximum indentation depth was set at 150nm, the load was changed with the indentation depth, and 10 matrix points were measured for each sample and averaged.
3. Corrosion resistance test
The coatings were tested for seawater corrosion resistance using an electrochemical workstation (modular, Solartron, USA). The test mode is a standard polarization curve test of a three-electrode system, the corrosion medium is 3.5 wt% of NaCl aqueous solution, the reference electrode is a saturated calomel electrode, the test area is 1cm2, the test potential range is-1.0V, and the potential scan rate is 1mV. s-1.
4. Salt spray test
The salt spray resistance of the coating was tested by Q-FOG CCT1100, Inc. of Wickel, USA, wherein the salt spray was an atomized NaCl aqueous solution with a concentration of 5 wt%, the test temperature was 35 deg.C, the humidity was 60%, and the test time was 180 h.
5. Wear rate testing
The wear rate is the ratio of the volume of the sample being ground to the friction work, i.e. the volume of the sample being ground per unit of friction work, expressed as the wear volume divided by the load and sliding distance, in units of: m is3N · m. Testing with multifunctional friction wear tester (CETR brand, UMT-3), and using Al with diameter of 9.0mm and hardness RC of 62 as dual material2O3Bearing ball, load 2N, frequency 5Hz, test time 3 h.
(II) test results
Table 2 comparison of performance test results of valve plates of air valves of air conditioners
From the data in the table, it can be seen that the valve plates I-III have better salt spray resistance than the 304 stainless steel base material without the anti-abrasion and anti-corrosion film, the coating hardness of the valve plates I-III is gradually improved and the wear rate is gradually reduced, the corrosion current density of the valve plates I-III is reduced by 2-3 orders of magnitude compared with the 304 stainless steel valve plates without the anti-abrasion and anti-corrosion film, the corrosion potential of the sprayed anti-abrasion and anti-corrosion film is increased by 0.4-0.5, and the corrosion current density of the coating of the valve plates I-III is gradually reduced and the corrosion potential is gradually increased, which indicates that the anti-abrasion and anti-corrosion film has good anti-corrosion effect on the substrate, and has excellent anti-scratch and wear resistance, high temperature resistance, adhesion resistance and good dimensional stability, and has potential industrial application value.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (9)
1. The valve plate of the air valve of the air conditioner compressor with wear resistance and corrosion resistance comprises a valve plate body, wherein a wear-resistant and corrosion-resistant film is coated on the valve plate body, and the valve plate is characterized in that the wear-resistant and corrosion-resistant film is composed of the following raw materials in parts by weight: 40-60 parts of epoxy-organic silicon copolymer resin, 3-12 parts of modified graphene, 5-10 parts of modified silicon carbide, 30-50 parts of curing agent, 4-8 parts of thickening agent, 2-4 parts of antioxidant and 8-15 parts of reactive diluent;
the epoxy-organosilicon copolymer resin is obtained by adopting the following method: putting dimethyl diethoxysilane and hydrochloric acid into a reaction kettle, heating to 80-110 ℃, controlling the stirring speed to be 200-500 r/min, dropwise adding deionized water while stirring, reacting for 1-3 h under heat preservation after dropwise adding, then carrying out reduced pressure distillation, controlling the pressure to be 0.06MPa, and removing small molecules generated in the reaction process to obtain an organic silicon prepolymer; putting bisphenol A epoxy resin and an organic silicon prepolymer into a reaction kettle, adding aluminum acetylacetonate, raising the temperature of the system to 100-160 ℃, controlling the stirring speed to 300-600 r/min, and reacting for 8 hours at constant temperature to obtain the epoxy-organic silicon copolymer resin.
2. An air valve plate of an air conditioner compressor with wear resistance and corrosion resistance as claimed in claim 1, wherein: the raw materials comprise the following components in parts by weight: 45 parts of epoxy-organic silicon copolymer resin, 8 parts of modified graphene, 6 parts of modified silicon carbide, 33 parts of curing agent, 5 parts of thickening agent, 3 parts of antioxidant and 10 parts of active diluent.
3. The air valve plate of an air conditioner compressor with wear resistance and corrosion resistance as claimed in claim 1, wherein the modified graphene is obtained by the following method: placing graphene in a silane coupling agent solution, performing ultrasonic dispersion for 1-3 hours to obtain a primary mixture, then placing the primary mixture in a water bath kettle, raising the temperature of the system to 50-70 ℃, controlling the stirring speed to be 300-400 r/min, after full reaction, filtering the reactant, collecting filter residues, respectively washing the filter residues with deionized water and ethanol for 3 times, removing unreacted coupling agent, and finally placing the filter residues in a vacuum drying environment at 120 ℃ for 12 hours to obtain the modified graphene.
4. The air valve plate of an air conditioner compressor with wear resistance and corrosion resistance as claimed in claim 3, wherein the modified silicon carbide is obtained by the following method: roasting silicon carbide at high temperature for 12h, cooling to room temperature, placing the silicon carbide into a mixed solution of hydrogen peroxide and concentrated sulfuric acid in a mass ratio of 1:3, reacting and soaking for 4h to obtain pretreated silicon carbide, then placing the pretreated silicon carbide into a silane coupling agent solution, ultrasonically dispersing for 0.5-2 h, raising the system temperature to 50-70 ℃, controlling the stirring speed to be 500-700 r/min, fully reacting, filtering the reactant, collecting filter residues, respectively cleaning the filter residues with deionized water and ethanol, and finally vacuum drying the cleaned filter residues to obtain the modified silicon carbide.
5. The air valve plate of an air conditioner compressor with wear resistance and corrosion resistance as claimed in claim 4, wherein: the silane coupling agent solution is prepared by mixing 20 wt% of coupling agent KH-550, 72 wt% of ethanol and 8 wt% of deionized water.
6. The air valve plate of an air conditioner compressor with wear resistance and corrosion resistance as claimed in any one of claims 1, 2 or 4, wherein: the curing agent is isophorone diamine or 1, 3-di (4-piperidyl) propane; the active diluent is propylene oxide phenyl ether or propylene oxide butyl ether.
7. An air valve plate of an air conditioner compressor with wear resistance and corrosion resistance as claimed in claim 6, wherein: the thickening agent is dibutyl phthalate or polysulfide rubber; the antioxidant is dilauryl-3, 3' -thiodipropionate or 2, 2-thiodiethylene bis [3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ].
8. The method for coating the valve plate of the air valve of the air conditioner compressor as claimed in any one of claims 1 to 7, which is characterized by comprising the following steps:
step one, pretreatment before spraying: polishing, deoiling, pickling, washing, surface conditioning and phosphorizing the surface of the valve plate;
step two, spraying the wear-resistant corrosion-resistant film: preheating the valve plate pretreated in the step one, performing primary spraying on the valve plate by using Disk spraying, drying the valve plate after the spraying is finished, and performing multiple spraying and drying treatments after the surface of the valve plate is dried until the film reaches the required film thickness;
step three, heat treatment and solidification: and D, placing the valve plate sprayed in the step two into an oven for baking and curing, and then naturally cooling along with the oven to obtain a finished product.
9. The method for coating the valve plate of the air valve of the air conditioner compressor as claimed in claim 8, wherein the method comprises the following steps: the oil removing procedure in the first step is to use NaOH and NaHCO with the volume ratio of 1:13The mixed alkali solution is used for removing oil stains on a valve plate, and the phosphating process specifically adopts high-temperature phosphating at 70-90 ℃ for treatment;
the spraying process conditions in the step two are as follows: the spraying amount is 20-35ml/s, the rotating speed of the rotary disc is 4000-;
the baking and curing conditions in the third step are as follows: keeping the temperature at 150 +/-5 ℃ for 0.5h, then continuously heating to 170 +/-5 ℃, keeping the temperature at the speed of less than or equal to 5 ℃/min, keeping the temperature for 1h, then naturally cooling to below 40 ℃ along with an oven, and taking out to obtain a finished product.
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| CN110863166B (en) * | 2019-11-18 | 2022-09-13 | 和县科嘉阀门铸造有限公司 | Method for improving stress corrosion resistance of austenitic stainless steel valve |
| CN113024934A (en) * | 2021-04-27 | 2021-06-25 | 康泰塑胶科技集团有限公司 | High-performance gas pipe and preparation method thereof |
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Denomination of invention: Wear resistant and corrosion-resistant air conditioning compressor valve plate and spraying method Granted publication date: 20200814 Pledgee: Bank of China Limited by Share Ltd. Jurong branch Pledgor: JIANGSU HAOKE AUTOMOTIVE AIR CONDITIONING CO.,LTD. Registration number: Y2024980007558 |
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