WO2018053946A1 - 压缩机及其加工方法 - Google Patents

压缩机及其加工方法 Download PDF

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Publication number
WO2018053946A1
WO2018053946A1 PCT/CN2016/109141 CN2016109141W WO2018053946A1 WO 2018053946 A1 WO2018053946 A1 WO 2018053946A1 CN 2016109141 W CN2016109141 W CN 2016109141W WO 2018053946 A1 WO2018053946 A1 WO 2018053946A1
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WIPO (PCT)
Prior art keywords
coating
compressor
compressor according
processing
layer
Prior art date
Application number
PCT/CN2016/109141
Other languages
English (en)
French (fr)
Inventor
黄之敏
李洁
樊兆迪
乐红胜
金效兴
Original Assignee
上海海立电器有限公司
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Application filed by 上海海立电器有限公司 filed Critical 上海海立电器有限公司
Priority to EP16916685.7A priority Critical patent/EP3517780B1/en
Priority to US16/336,475 priority patent/US11293423B2/en
Publication of WO2018053946A1 publication Critical patent/WO2018053946A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • 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
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • 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
    • C09D5/002—Priming 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
    • 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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/30—Manufacture with deposition of material
    • F05B2230/31—Layer deposition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0436—Iron
    • F05C2201/0439—Cast iron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel
    • F05C2201/0454—Case-hardened steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2347/00—Details for preventing or removing deposits or corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts

Definitions

  • the present invention relates to a compressor, and more particularly to a compressor having an anticorrosive coating and a method of processing the same.
  • the housing of the compressor is usually formed by stamping hot or cold rolled mild steel or by grey cast iron. Therefore, if there is no corrosion-resistant coating on the compressor, steel or iron will corrode at a very fast rate even in a non-marine environment.
  • the existing anti-corrosion coating formed on the compressor generally comprises: a metal coating sprayed on the surface of the casing of the compressor, such as aluminum (Al) or zinc (Zn); and spray coating a paint coating on the metal coating, wherein the paint coating acts as a surface layer to isolate the metal coating from the external environment.
  • a metal coating sprayed on the surface of the casing of the compressor such as aluminum (Al) or zinc (Zn)
  • spray coating a paint coating on the metal coating wherein the paint coating acts as a surface layer to isolate the metal coating from the external environment.
  • the anti-corrosion layer formed by spraying a paint coating on a metal coating has the following drawbacks: the paint coating is generally thin and easily pierced by a sharp object, which in turn exposes the metal coating. Moreover, the metal coating contains a large amount of pores, so that once the surface layer is damaged and the metal coating is exposed to the outside (for example, exposed to the marine environment), the pores become connected to the marine environment and the compressor. Connect the holes, which can cause serious corrosion problems in the compressor.
  • An object of the present invention is to provide a compressor and a processing method thereof for solving the problem that the corrosion-resistant coating of the existing compressor is liable to be damaged and the compressor is severely corroded.
  • the present invention provides a compressor including a housing and a cover case An anti-corrosion coating for a body surface, wherein the anti-corrosion coating comprises a base layer coated on a surface of the housing and a surface layer coated on the base layer, the base layer and the surface layer It is coated with organic matter.
  • the base layer is made of epoxy resin.
  • the thickness of the base layer is greater than or equal to 10 ⁇ m.
  • the surface layer is made of ammonia acrylate or polyester resin.
  • the surface layer has a thickness of 6 ⁇ m or more.
  • the casing is made of carbon steel or gray cast iron.
  • a phosphating layer is further formed between the casing surface of the compressor and the base layer.
  • a second organic coating is applied to the surface of the base layer to form a surface layer.
  • the method before the forming the base layer, the method further comprises: surface treating a casing of the compressor to improve adhesion between the base layer and a casing surface of the compressor. Attached.
  • the method of surface treatment comprises: performing shot peening on a surface of a casing of the compressor.
  • the method of surface treatment comprises: treating the surface of the casing of the compressor with phosphate to form a phosphating layer.
  • the time interval between completion of the surface treatment and application of the first organic coating is less than 8 hours.
  • the first organic coating is an epoxy resin system. coating.
  • the epoxy resin coating is a powder coating.
  • the epoxy resin powder coating is sprayed on the surface of the casing of the compressor by electrostatic spraying.
  • the second organic coating material is an acrylic acid-based coating material.
  • the acryl-based amino coating is a water-based lacquer.
  • an acryl-based aqueous water-based lacquer is applied to the surface of the base layer by dipping or spraying.
  • the second organic coating is a polyester resin coating.
  • the polyester resin coating is a powder coating.
  • a polyester resin-based powder coating is sprayed on the surface of the base layer by electrostatic spraying.
  • the first organic coating is further baked; after the coating the second organic coating, the second organic The paint is baked.
  • the method further comprises: performing coating detection on the anti-corrosion coating, wherein the coating detection comprises thickness detection, scratch detection, and/or Or bubble detection.
  • the anti-corrosion coating formed includes two organic coating layers, and the two layers of the organic coating can effectively isolate the casing of the compressor from the external environment. Thereby ensuring that the compressor is not corroded. Moreover, the anti-corrosion coating of the present invention does not contain a metal coating, and the problem of severe corrosion of the compressor due to the exposed metal coating is avoided. Further, an epoxy resin-based powder coating is used to form a base layer, and the formed coating layer is formed. It is dense, smooth and has strong anti-corrosion performance. It is made of polyester resin powder coating or acrylic amino water-based paint to form a surface layer. It has strong weather resistance and can improve the protection strength of the base layer. Increase the service life of the compressor.
  • the present invention is a pioneering application of powder coatings and waterborne coatings in the field of compressors, which has higher utilization rates and more flexible construction methods than conventional paints and the like.
  • the coatings used in the present invention are environmentally friendly coatings, so that the problem of environmental pollution can be effectively avoided.
  • FIG. 1 is a schematic structural view of a compressor according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing a casing of a compressor according to an embodiment of the present invention
  • FIG. 3 is a flow chart showing a method of processing a compressor according to an embodiment of the present invention.
  • the core idea of the present invention is to provide a compressor including a housing and an anti-corrosion coating covering the surface of the housing, and a method of processing the same.
  • the anti-corrosion coating comprises a base layer coated on a surface of the casing, a surface layer coated on the base layer, and the base layer and the surface
  • the layers are all organic coatings.
  • the anti-corrosion coating comprises a base layer and a surface layer, and the base layer and the surface layer can effectively isolate the casing of the compressor from the external environment, thereby ensuring that the compressor is not Corroded.
  • both the base layer and the surface layer are organic coatings, so that even if the surface layer is broken, the compressor is not severely corroded by the exposure of the substrate layer.
  • the processing method of the compressor provided by the present invention has a simple process.
  • the anti-corrosion coating formed according to the processing method has the advantages of surface compactness and smoothness, thereby improving the corrosion resistance and weather resistance of the anti-corrosion coating, and then effectively increasing the compression. The service life of the machine.
  • FIG. 1 is a schematic structural view of a compressor according to an embodiment of the present invention
  • FIG. 2 is a schematic cross-sectional view showing a casing of the compressor according to an embodiment of the present invention, that is, a cross-sectional view taken along line AA' of FIG. 1 and 2
  • the compressor 100 includes a housing 110 and an anti-corrosion coating 130 covering the surface of the housing.
  • the anti-corrosion coating 130 includes a base layer 131 coated on a surface of the housing 110 and a surface layer 132 coated on the base layer 131, and the base layer 131 and the surface layer 132 All are organic coatings.
  • the anti-corrosion coating 130 in the compressor provided by the present invention has two layers of organic coatings, which can effectively protect the casing of the compressor from corrosion problems, and the surface layer 132 is further strengthened.
  • the corrosion resistance of the compressor is also protected, and the base layer 131 can also be protected by the surface layer 132 to prevent the base layer 131 from being exposed to improve the corrosion resistance of the compressor, thereby being effective Extend the life of the compressor. Further, even if the surface layer 132 is broken, the compressor provided by the present invention does not cause corrosion of the compressor due to the exposure of the base layer 131.
  • the material of the casing 110 of the compressor may be carbon steel or gray cast iron. This is also the material of the compressor housing which is more commonly used in the art. However, because the material of the housing 110 is usually carbon steel or gray cast iron which is easily corroded, in order to ensure the structural integrity of the compressor, the improvement is made. The corrosion resistance of the compressor 100 is particularly important.
  • the base layer 131 of the anti-corrosion coating 130 is preferably an epoxy resin coating. Since epoxy resin has good physical stability and chemical stability, products made of epoxy resin are not easily deformed and have good corrosion resistance. Further, the epoxy resin has excellent bonding strength to the surfaces of metallic materials and non-metallic materials. That is, using the stated As the base layer 131, the epoxy resin coating not only effectively protects the compressor from corrosion, but also the formed base layer 131 is not easily detached from the compressor 100 to break the integrity of the anticorrosive coating 130, further improving Corrosion resistance to the compressor.
  • an epoxy resin-based organic coating is used instead of the metal coating as a base layer, thereby avoiding the presence of a metal coating, thereby preventing the metal from being
  • the porosity in the coating causes the compressor to be susceptible to corrosion.
  • the base layer 131 has a thickness of 10 ⁇ m or more, and preferably has a thickness of 45 ⁇ m to 95 ⁇ m.
  • the surface layer 132 of the anti-corrosion coating 130 is an acryl-based coating or a polyester resin coating.
  • the acrylic amino-based coating layer and the polyester resin-based coating layer all have strong weather resistance, that is, the acrylic amino-based coating layer and the polyester resin-based coating layer are not exposed to sunlight or temperature changes. The aging phenomenon such as cracking or detachment occurs due to the influence of conditions. Therefore, even if the compressor 100 is in an environment of high temperature and high humidity and strong ultraviolet irradiation, the surface layer 132 can maintain its integrity, thereby effectively protecting the base layer covered by the surface layer 132. 131 to ensure the corrosion resistance of the compressor 100.
  • the thickness of the surface layer 132 is 6 ⁇ m or more.
  • the thickness of the acrylic amino-based coating layer is preferably 10 ⁇ m to 40 ⁇ m
  • the thickness of the polyester resin-based coating layer is preferably 10 ⁇ m to 85 ⁇ m.
  • the compressor 100 further includes a phosphating layer 120 between the housing 110 and the anti-corrosion coating 130.
  • the phosphating layer 120 can effectively improve the adhesion between the subsequently formed base layer 131 and the housing 110, thereby improving the problem of the base layer 131 falling off.
  • the material of the phosphating layer 120 is iron phosphate, wherein the phosphating layer 120 can treat the surface of the casing 110 by using phosphate to form an iron phosphate layer on the surface of the casing 110. .
  • the present invention also provides a method of processing a compressor, which Specifically used to form an anti-corrosion coating for the compressor.
  • 3 is a schematic flow chart of a processing method of a compressor according to an embodiment of the present invention. Referring to FIG. 3 and FIG. 1 and FIG. 2, the processing method of the compressor includes:
  • Step S10 coating a surface of the casing 110 of the compressor with a first organic coating to form a base layer 131;
  • Step S20 coating a surface of the base layer 131 with a second organic coating to form a surface layer 132.
  • the method before performing step S20 to form the base layer 131, the method further includes:
  • Step S00 surface treatment of the casing 110 of the compressor to improve the adhesion between the subsequently formed base layer 131 and the casing 110, and to improve the corrosion resistance of the compressor after long-term use.
  • the coating 130 has problems such as bubbling, cracking or even falling off.
  • the surface treatment may be: performing shot blasting on the surface of the casing of the compressor.
  • shot peening By performing shot peening on the surface of the casing 110, not only the contaminants on the surface of the casing 110 can be removed, but also the surface of the casing 110 can be roughened, thereby facilitating the subsequent formation of the base layer 131. It is firmly attached to the housing 110.
  • the surface treatment may also be: treating the surface of the casing of the compressor with phosphate to form a phosphating layer 120. That is, by forming the phosphating layer 120 on the surface of the casing 110, the adhesion property between the base layer 131 and the casing 110 can be greatly improved by the phosphating layer.
  • the material of the casing 110 is carbon steel or gray cast iron. Therefore, when the casing is treated with phosphate, the phosphating layer 120 formed is iron phosphide.
  • step S10 is performed to apply a first organic coating on the housing 110.
  • the time interval between completion of the surface treatment and application of the first organic coating is less than 8 hours.
  • the cleanliness of the casing when the first organic paint is applied can be ensured, and on the other hand, the surface of the casing 110 can be oxidized while avoiding prolonged placement, so that the base layer 131 can be improved. Adhesion properties with the housing 110 and extending the useful life of the base layer 131.
  • a first organic paint is applied on the surface of the casing 110 of the compressor.
  • the first organic coating material is an epoxy resin coating material.
  • the epoxy resin coating is a powder coating. Powder coatings have a high utilization rate, and their construction is relatively simple and lower cost relative to metal coatings, and since the powder coatings are solvent-free and non-polluting, epoxy resin-based powder coatings are used.
  • the formation of the base layer 110 conforms to national environmental requirements without causing environmental pollution.
  • the epoxy resin powder coating is sprayed on the surface of the casing 110 of the compressor by electrostatic spraying. That is, the negatively charged coating particles are adsorbed on the surface of the casing 110 by a high-voltage electrostatic electric field, whereby a denser coating layer can be formed, and the coating layer can be preferably attached to the casing 110.
  • the method further includes:
  • Step S11 baking the first organic coating to cure the first organic coating to form the base layer 131.
  • the curing temperature is preferably from 120 to 160 ° C, and the curing time is preferably from 20 min to 60 min.
  • the second organic coating material may be an acrylic acid-based coating material, and preferably, the acryl-based amino-based coating material is a water-based lacquer.
  • water-based paint is water instead of organic solvent. Therefore, there is no hidden danger of flammable and explosive, safe and non-toxic, which not only saves resources, but also reduces environmental pollution.
  • an acryl-based aqueous water-based lacquer may be applied to the surface of the base layer 131 by dipping or spraying.
  • the second organic coating material may also be a polyester resin coating material, and preferably, the polyester resin coating material is a powder coating material. Accordingly, the polyester resin-based powder coating can also be sprayed onto the surface of the base layer 131 by electrostatic spraying.
  • the method further includes:
  • Step S21 baking the second organic coating to fix the second organic coating
  • the surface layer 132 is formed.
  • the curing temperature and the curing time may be set according to the actual material of the second organic coating.
  • the curing temperature may range from 120 to 160 ° C, and the curing time may be from 15 min to 50 min; when the second organic coating is a polyester resin
  • the curing temperature may be 130 ° C to 180 ° C, and the curing time may be 20 min to 70 min.
  • the method further includes:
  • Step S30 performing coating detection on the anti-corrosion coating 130, the coating detection including thickness detection, scratch detection and/or bubble detection, etc., to ensure that the formed anti-corrosion coating 130 meets requirements, and avoids The corrosion-resistant coating 130 is damaged to affect the corrosion resistance of the compressor.
  • the anti-corrosion coating comprises two organic coating layers, and the two-layer organic coating can isolate the surface of the casing of the compressor from the external environment, thereby Protect the compressor from corrosion. Moreover, the anticorrosive coating of the present invention does not contain a metal coating, i.e., the problem of severe corrosion of the compressor due to the exposed metal coating is avoided.
  • an epoxy resin-based powder coating is used to form a base layer, and a polyester resin-based powder coating or an acrylic amino-based water-based paint is used to form a surface layer, which are all environmentally friendly coating materials. Compared with highly toxic, polluting and flammable and explosive paints, it is more environmentally friendly and does not pollute the environment. Moreover, the formed coating is dense and smooth, and has strong corrosion resistance and weather resistance, thereby increasing the service life of the compressor.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Compressor (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

一种压缩机及其加工方法，所述压缩机（100）包括壳体（110）以及覆盖壳体（110）表面的防腐蚀涂层（130），所述防腐蚀涂层（130）包括涂覆于壳体（110）表面上的基体层（131）以及涂覆于所述基体层（131）上的表面层（132），所述基体层（131）和所述表面层（132）均为有机物涂层；即通过两层有机涂层将压缩机（100）的壳体（110）与外界环境进行有效的隔离，从而保证所述压缩机不被腐蚀，防腐蚀涂层不包含金属涂层，避免了由于裸露出的金属涂层而使压缩机发生严重腐蚀的问题。

Description

压缩机及其加工方法 技术领域
本发明涉及压缩机，特别涉及一种具有防腐蚀涂层的压缩机及其加工方法。
背景技术
压缩机的壳体通常采用热轧或冷轧低碳钢冲压形成，或者是由灰铸铁构成。因此，若压缩机上没有抗腐蚀涂层，钢或铁即使在非海洋性的环境中也会以很快的速度腐蚀。
现有的形成于压缩机上的抗腐蚀涂层一般包括：喷覆于压缩机的壳体表面上的金属涂层，所述金属涂层例如为铝(Al)或锌(Zn)；以及喷覆于所述金属涂层上的油漆涂层，其中，所述油漆涂层作为表面层以使所述金属涂层和外界环境隔离。
然而，通过于金属涂层上喷覆油漆涂层以形成的抗腐蚀图层却存在如下缺陷：油漆涂层通常较薄且易于被尖锐的物体刺穿，进而会使金属涂层暴露出。并且，在金属涂层中含有大量的孔隙，因此，一旦表面层发生破损而使金属涂层裸露在外面(例如暴露在海洋环境中)时，所述孔隙即会成为连通海洋环境和压缩机的连通孔，从而会造成压缩机被严重腐蚀的问题。
发明内容
本发明的目的在于提供一种压缩机及其加工方法，以解决现有的压缩机的防腐蚀涂层易发生破损，进而使压缩机被严重腐蚀的问题。
为解决上述技术问题，本发明提供一种压缩机，包括壳体以及覆盖壳 体表面的防腐蚀涂层，其中，所述防腐蚀涂层包括涂覆于壳体表面上的基体层以及涂覆于所述基体层上的表面层，所述基体层和所述表面层均为有机物涂层。
可选的，在以上所述的压缩机中，所述基体层的材质为环氧树脂。
可选的，在以上所述的压缩机中，所述基体层的厚度大于等于10μm。
可选的，在以上所述的压缩机中，所述表面层的材质为丙烯酸氨或聚酯树脂。
可选的，在以上所述的压缩机中，所述表面层的厚度大于等于6μm。
可选的，在以上所述的压缩机中，所述壳体的材质为碳钢或灰铸铁。
可选的，在以上所述的压缩机中，所述压缩机的壳体表面和基体层之间还形成有磷化层。
本发明的又一目的在于：提供一种形成以上所述的压缩机的加工方法，用于形成所述压缩机的防腐蚀涂层，包括：
于压缩机的壳体表面上涂覆一第一有机涂料以形成基体层；
于所述基体层的表面上涂覆一第二有机涂料以形成表面层。
可选的，在所述的加工方法中，形成所述基体层之前还包括：对压缩机的壳体进行表面处理，以提高所述基体层与所述压缩机的壳体表面之间的粘附性。
可选的，在以上所述的加工方法中，所述表面处理的方法包括：对所述压缩机的壳体表面进行喷丸处理。
可选的，在以上所述的加工方法中，所述表面处理的方法包括：采用磷酸盐处理压缩机的壳体表面以形成一磷化层。
可选的，在以上所述的加工方法中，完成所述表面处理与涂覆第一有机涂料之间的时间间隔小于8小时。
可选的，在以上所述的加工方法中，所述第一有机涂料为环氧树脂系 涂料。
可选的，在以上所述的加工方法中，所述环氧树脂系涂料为粉末涂料。
可选的，在以上所述的加工方法中，采用静电喷涂的方式，将环氧树脂系粉末涂料喷涂于压缩机的壳体表面上。
可选的，在以上所述的加工方法中，所述第二有机涂料为丙烯酸氨基系涂料。
可选的，在以上所述的加工方法中，所述丙烯酸氨基系涂料为水性漆。
可选的，在以上所述的加工方法中，采用浸漆或喷涂的方式，将丙烯酸氨基系水性漆涂覆于所述基体层的表面上。
可选的，在以上所述的加工方法中，所述第二有机涂料为聚酯树脂系涂料。
可选的，在以上所述的加工方法中，所述聚酯树脂系涂料为粉末涂料。
可选的，在以上所述的加工方法中，采用静电喷涂的方式，将聚酯树脂系粉末涂料喷涂于所述基体层的表面上。
可选的，在以上所述的加工方法中，涂覆完第一有机涂料之后还包括对所述第一有机涂料进行烘烤；涂覆完第二有机涂料之后还包括对所述第二有机涂料进行烘烤。
可选的，在以上所述的加工方法中，形成所述防腐蚀涂层之后还包括：对所述防腐蚀涂层进行涂层检测，所述涂层检测包括厚度检测、刮伤检测和/或气泡检测。
在本发明提供的压缩机及其加工方法中，所形成的防腐蚀涂层包括两层有机涂层，通过所述两层有机涂层可将压缩机的壳体与外界环境进行有效的隔离，从而保证所述压缩机不被腐蚀。并且，本发明中防腐蚀涂层不包含金属涂层，避免了由于裸露出的金属涂层而使压缩机发生严重腐蚀的问题。进一步的，采用环氧树脂系粉末涂料形成基体层，其所形成的涂层 致密、光滑，具有较强的防腐蚀性能，采用聚酯树脂系粉末涂料或丙烯酸氨基系水性漆形成表面层，其具有较强的耐候性，可提高对所述基体层的保护强度，从而可增加所述压缩机的使用寿命。更进一步的，本发明开创性的将粉末系涂料和水性涂料应用于压缩机领域中，其相对于传统的油漆等涂料而言，一方面具有更高的利用率以及更为灵活的施工的方式，另一方面本发明采用的涂料均为环境友好型涂料，因此可有效避免对环境造成污染的问题。
附图说明
图1为本发明一实施例中压缩机的结构示意图；
图2为本发明一实施例中压缩机的壳体的剖面示意图；
图3为本发明一实施例中压缩机的加工方法的流程示意图。
具体实施方式
本发明的核心思想在于，提供一种压缩机及其加工方法，所述压缩机包括壳体以及覆盖壳体表面的防腐蚀涂层。其中，所述防腐蚀涂层包括基体层和表面层，所述基体层涂覆于壳体表面上，所述表面层涂覆于所述基体层上，并且，所述基体层和所述表面层均为有机物涂层。
本发明提供的压缩机中，其防腐蚀涂层包括基体层及表面层，通过所述基体层和表面层可将压缩机的壳体与外界环境进行有效的隔离，从而保证所述压缩机不被腐蚀。并且，所述基体层和表面层均为有机物涂层，如此一来，即使所述表面层发生破损，也不会因基体层被暴露出而使压缩机受到严重腐蚀。此外，本发明提供的压缩机的加工方法，其工艺较为简单。并且，根据所述加工方法所形成的防腐蚀涂层具有表面致密和光滑的优点，从而可提高所述防腐蚀涂层的抗腐蚀性以及耐候性，继而可有效增加压缩 机的使用寿命。
以下结合附图和具体实施例对本发明提出的压缩机及其加工方法作进一步详细说明。根据下面说明和权利要求书，本发明的优点和特征将更清楚。需说明的是，附图均采用非常简化的形式且均使用非精准的比例，仅用以方便、明晰地辅助说明本发明实施例的目的。
图1为本发明一实施例中的压缩机的结构示意图，图2为本发明一实施例中压缩机的壳体的剖面示意图，即沿图1中的AA’方向的剖面示意图。结合图1和图2所示，所述压缩机100包括壳体110以及覆盖壳体表面的防腐蚀涂层130。其中，所述防腐蚀涂层130包括涂覆于壳体110表面上的基体层131和涂覆于所述基体层131上的表面层132，并且，所述基体层131和所述表面层132均为有机物涂层。即，本发明提供的压缩机中的防腐蚀涂层130具有两层有机物涂层，所述基体层131可有效防护压缩机的壳体，避免其受到腐蚀的问题，所述表面层132进一步加强了所述压缩机的防腐蚀性能，并且还可通过所述表面层132对所述基体层131进行保护，避免所述基体层131暴露出以提高所述压缩机的抗腐蚀性能，从而可有效延长所述压缩机的使用寿命。此外，即使所述表面层132发生破损，本发明提供的压缩机中也不会因基体层131被暴露出而使压缩机受到腐蚀。
具体的，所述压缩机的壳体110的材质可以为碳钢或灰铸铁。这也是本领域中较为常用的压缩机壳体的材质，然而正因为所述壳体110的材质通常为易被腐蚀的碳钢或灰铸铁，因此，为保证压缩机的结构完整性，提高所述压缩机100的防腐蚀性能尤为重要。
本实施例中，所述防腐蚀涂层130的基体层131优选为环氧树脂系涂层。由于环氧树脂具有较好的物理稳定性及化学稳定性，因此，由环氧树脂制成的产品不易变形，并且具有较好的抗腐蚀性能。此外，环氧树脂对于金属材料以及非金属材料的表面均具有优异的粘接强度。即，采用所述 环氧树脂系涂层作为基体层131，不仅可有效保护压缩机不被腐蚀，并且所形成的基体层131不易从所述压缩机100上脱落而破坏防腐蚀涂层130的完整性，进一步提高了对所述压缩机的抗腐蚀性能。相比于现有的防腐蚀涂层，本实施例中，采用环氧树脂系的有机涂层取代所述金属涂层作为基体层，从而可避免存在金属涂层，进而可防止由于所述金属涂层中的孔隙而造成压缩机易被腐蚀的问题。进一步的，所述基体层131的厚度大于等于10μm，其优选厚度为45μm-95μm。
优选的，所述防腐蚀涂层130中表面层132为丙烯酸氨基系涂层或聚酯树脂系涂层。所述丙烯酸氨基系涂层以及聚酯树脂系涂层均具有较强的耐候性，即，所述丙烯酸氨基系涂层及聚酯树脂系涂层并不会由于受到阳光照射或温度变化等外界条件的影响而出现开裂或脱离等老化现象。因此，即使所述压缩机100处于高温高湿以及具有较强的紫外线照射的环境下，所述表面层132仍可维持其完整性，进而可有效保护被所述表面层132所覆盖的基体层131，以确保所述压缩机的100的抗腐蚀性能。进一步的，所述表面层132的厚度大于等于6μm，更进一步的，所述丙烯酸氨基系涂层的厚度优选为10μm-40μm，所述聚酯树脂系涂层的厚度优选为10μm-85μm。
继续参考图2所示，所述压缩机100还包括位于壳体110及防腐蚀涂层130之间的磷化层120。通过所述磷化层120可有效提高后续所形成的基体层131与壳体110之间的粘附性能，从而可改善所述基体层131发生脱落的问题。本实施例中，所述磷化层120的材质为磷酸铁，其中，所述磷化层120可通过采用磷酸盐处理壳体110的表面以在所述壳体110的表面上形成磷酸铁层。
根据如上所述的压缩机，本发明还提供了一种压缩机的加工方法，其 具体用于形成所述压缩机的防腐蚀涂层。图3为本发明一实施例中的压缩机的加工方法的流程示意图，参考图3并结合图1和图2所示，所述压缩机的加工方法包括：
步骤S10，于压缩机的壳体110表面上涂覆一第一有机涂料以形成基体层131；
步骤S20，于所述基体层131的表面上涂覆一第二有机涂料以形成表面层132。
本实施例中，在执行步骤S20以形成所述基体层131之前还包括：
步骤S00，对压缩机的壳体110进行表面处理，以提高后续所形成的基体层131与壳体110之间的粘附性，并可改善所述压缩机在长期使用后，所述防腐蚀涂层130出现的鼓泡、开裂甚至脱落等问题。
具体的，所述表面处理可以为：对所述压缩机的壳体表面进行喷丸处理。通过对壳体110的表面进行喷丸处理，其不仅可去除壳体110表面上的污染物，并且还可以使所述壳体110的表面粗糙化，从而有利于后续所形成的基体层131更为牢固地附着于所述壳体110上。
或者，所述表面处理也可以是：采用磷酸盐处理压缩机的壳体表面以形成一磷化层120。即，通过于所述壳体110的表面上生成所述磷化层120，通过所述磷化层可大大提高基体层131与壳体110之间的粘附性能。本实施例中，所述壳体110的材质为碳钢或灰铸铁，因此，当采用磷酸盐对壳体进行处理时，其所生成的磷化层120即为磷化铁。
继续参考图3所示，在执行步骤S00以完成对壳体110进行表面处理之后，即执行步骤S10以在所述壳体110上涂覆一第一有机涂料。优选的，在完成所述表面处理与涂覆第一有机涂料之间的时间间隔小于8小时。如此，一方面可保证在涂覆第一有机涂料时，所述壳体的清洁度，另一方面可避免长时间的放置而使壳体110的表面被氧化，从而可提高基体层131 与壳体110之间的粘附性能，并可延长所述基体层131的使用寿命。
步骤S10，于压缩机的壳体110表面上涂覆第一有机涂料。本实施例中，所述第一有机涂料为环氧树脂系涂料。优选的，所述环氧树脂系涂料为粉末涂料。粉末涂料具有较高的利用率，并且相对于金属涂层而言，其施工较为简单以及更低的费用成本，并且由于所述粉末涂料不含溶剂并且无污染，因此采用环氧树脂系粉末涂料以形成所述基体层110，符合国家的环保要求，而不会对环境造成污染。进一步的，采用静电喷涂的方式，将所述环氧树脂系粉末涂料喷涂于压缩机的壳体110表面上。即，利用高压静电电场使带负电的涂料微粒吸附在壳体110的表面上，从而可形成致密性较高的涂层，并且所述涂层可较好的附着于所述壳体110上。
继续参考图3所示，本实施例中，在涂覆第一有机涂料之后还包括：
步骤S11，对所述第一有机涂料进行烘烤，使所述第一有机涂料固化以形成基体层131。其固化温度优选为120～160℃，固化时间优选为20min～60min。
在形成基体层131之后，于所述基体层131的表面上涂覆第二有机涂料。其中，所述第二有机涂料可以为丙烯酸氨基系涂料，优选的，所述丙烯酸氨基系涂料为水性漆。水性漆作为涂料的一种，其溶剂是水而不是采用有机溶剂，因此，不存在易燃易爆的隐患，安全无毒，不仅可节省资源，并且还可降低对环境的污染。进一步的，可采用浸漆或喷涂的方式，将丙烯酸氨基系水性漆涂覆于所述基体层131的表面上。
此外，所述第二有机涂料也可以是聚酯树脂系涂料，优选的，所述聚酯树脂系涂料为粉末涂料。相应的，也可通过静电喷涂的方式，将聚酯树脂系粉末涂料喷涂于基体层131的表面上。
继续参考图3所示，在完成第二有机涂料的涂覆之后还包括：
步骤S21，对所述第二有机涂料进行烘烤，从而使所述第二有机涂料固 化以形成表面层132。在该烘烤固化的过程中，所述固化温度及固化时间可根据第二有机涂料的实际材质进行设置。例如，当所述第二有机涂料为丙烯酸氨基系水性漆时，则其固化温度的范围可以为120～160℃，其固化时间可以为15min～50min；当所述第二有机涂料为聚酯树脂系粉末涂料时，则其固化温度可以为130℃～180℃，其固化时间可以为20min～70min。
优选的方案中，在形成所述基体层131与所述表面层132之后，还包括：
步骤S30，对所述防腐蚀涂层130进行涂层检测，所述涂层检测包括厚度检测、刮伤检测和/或气泡检测等，以确保所形成的防腐蚀涂层130符合要求，避免由于所述防腐蚀涂层130存在破损而影响压缩机的防腐蚀性能。
综上所述，在本发明提供的压缩机中，其防腐蚀涂层包括两层有机涂层，通过所述两层有机涂层可将压缩机的壳体表面与外界环境进行隔离，从而可保护压缩机不被腐蚀。并且，本发明中防腐蚀涂层不包含金属涂层，即避免了由于裸露出的金属涂层而使压缩机发生严重腐蚀的问题。
进一步的，在本发明提供的压缩机的加工方法中，采用环氧树脂系粉末涂料形成基体层，采用聚酯树脂系粉末涂料或丙烯酸氨基系水性漆形成表面层，其均为环境友好型涂料，相比于具有剧毒、污染性较强并且易燃易爆的油漆涂料而言，更为环保不会对环境造成污染。并且，所形成的涂层致密、光滑，其具有较强的防腐蚀性和耐候性，从而可增加所述压缩机的使用寿命。
上述描述仅是对本发明较佳实施例的描述，并非对本发明范围的任何限定，本发明领域的普通技术人员根据上述揭示内容做的任何变更、修饰，均属于权利要求书的保护范围。

Claims (25)

  1. 一种压缩机，包括壳体以及覆盖壳体表面的防腐蚀涂层，其特征在于，所述防腐蚀涂层包括涂覆于壳体表面上的基体层以及涂覆于所述基体层上的表面层，所述基体层和所述表面层均为有机物涂层。
  2. 如权利要求1所述的压缩机，其特征在于，所述基体层的材质为环氧树脂。
  3. 如权利要求1所述的压缩机，其特征在于，所述基体层的厚度大于等于10μm。
  4. 如权利要求1所述的压缩机，其特征在于，所述表面层的材质为丙烯酸氨基。
  5. 如权利要求1所述的压缩机，其特征在于，所述表面层的材质为聚酯树脂。
  6. 如权利要求1所述的压缩机，其特征在于，所述表面层的厚度大于等于6μm。
  7. 如权利要求1所述的压缩机，其特征在于，所述壳体的材质为碳钢或灰铸铁。
  8. 如权利要求1所述的压缩机，其特征在于，所述压缩机的壳体表面和基体层之间还形成有磷化层。
  9. 一种压缩机的加工方法，用于形成所述压缩机的防腐蚀涂层，其特征在于，包括：
    于压缩机的壳体表面上涂覆一第一有机涂料以形成基体层；
    于所述基体层的表面上涂覆一第二有机涂料以形成表面层。
  10. 如权利要求9所述的压缩机的加工方法，其特征在于，所述基体层和所述表面层的材质不相同。
  11. 如权利要求9所述的压缩机的加工方法，其特征在于，在形成所述基体层之前还包括：对压缩机的壳体进行表面处理，以提高所述基体层与所述压缩机的壳体表面之间的粘附性。
  12. 如权利要求11所述的压缩机的加工方法，其特征在于，所述表面处理的方法包括：对所述压缩机的壳体表面进行喷丸处理。
  13. 如权利要求11所述的压缩机的加工方法，其特征在于，所述表面处理的方法包括：采用磷酸盐处理压缩机的壳体表面以形成一磷化层。
  14. 如权利要求11所述的压缩机的加工方法，其特征在于，完成所述表面处理与涂覆第一有机涂料之间的时间间隔小于8小时。
  15. 如权利要求9所述的压缩机的加工方法，其特征在于，所述第一有机涂料为环氧树脂系涂料。
  16. 如权利要求15所述的压缩机的加工方法，其特征在于，所述环氧树脂系涂料为粉末涂料。
  17. 如权利要求16所述的压缩机的加工方法，其特征在于，采用静电喷涂的方式，将环氧树脂系粉末涂料喷涂于压缩机的壳体表面上。
  18. 如权利要求9所述的压缩机的加工方法，其特征在于，所述第二有机涂料为丙烯酸氨基系涂料。
  19. 如权利要求18所述的压缩机的加工方法，其特征在于，所述丙烯酸氨基系涂料为水性漆。
  20. 如权利要求19所述的压缩机的加工方法，其特征在于，采用浸漆或喷涂的方式，将丙烯酸氨基系水性漆涂覆于所述基体层的表面上。
  21. 如权利要求9所述的压缩机的加工方法，其特征在于，所述第二有机涂料为聚酯树脂系涂料。
  22. 如权利要求21所述的压缩机的加工方法，其特征在于，所述聚酯树脂系涂料为粉末涂料。
  23. 如权利要求22所述的压缩机的加工方法，其特征在于，采用静电喷涂的方式，将聚酯树脂系粉末涂料喷涂于所述基体层的表面上。
  24. 如权利要求9所述的压缩机的加工方法，其特征在于，在涂覆第一有机涂料之后还包括对所述第一有机涂料进行烘烤；在涂覆第二有机涂料之后还包括对所述第二有机涂料进行烘烤。
  25. 如权利要求9所述的压缩机的加工方法，其特征在于，在形成所述防腐蚀涂层之后还包括：对所述防腐蚀涂层进行涂层检测，所述涂层检测包括厚度检测、刮伤检测和/或气泡检测。
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