CN115537730A - Compressor lubricating sliding vane and compressor - Google Patents
Compressor lubricating sliding vane and compressor Download PDFInfo
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- CN115537730A CN115537730A CN202211142924.6A CN202211142924A CN115537730A CN 115537730 A CN115537730 A CN 115537730A CN 202211142924 A CN202211142924 A CN 202211142924A CN 115537730 A CN115537730 A CN 115537730A
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- 230000001050 lubricating effect Effects 0.000 title abstract description 16
- 238000005121 nitriding Methods 0.000 claims abstract description 73
- 239000003094 microcapsule Substances 0.000 claims abstract description 56
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 51
- 229910018104 Ni-P Inorganic materials 0.000 claims abstract description 46
- 229910018536 Ni—P Inorganic materials 0.000 claims abstract description 46
- 239000004519 grease Substances 0.000 claims abstract description 43
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910001562 pearlite Inorganic materials 0.000 claims abstract description 13
- 238000010791 quenching Methods 0.000 claims abstract description 12
- 230000000171 quenching effect Effects 0.000 claims abstract description 12
- 238000005496 tempering Methods 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 4
- 238000005461 lubrication Methods 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 26
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 230000003746 surface roughness Effects 0.000 claims description 11
- QDAYJHVWIRGGJM-UHFFFAOYSA-B [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O Chemical compound [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QDAYJHVWIRGGJM-UHFFFAOYSA-B 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000007747 plating Methods 0.000 abstract description 14
- 238000001125 extrusion Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 description 20
- 238000000576 coating method Methods 0.000 description 20
- 239000003921 oil Substances 0.000 description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 238000005299 abrasion Methods 0.000 description 11
- 239000002775 capsule Substances 0.000 description 10
- 239000010935 stainless steel Substances 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- OFNHPGDEEMZPFG-UHFFFAOYSA-N phosphanylidynenickel Chemical compound [P].[Ni] OFNHPGDEEMZPFG-UHFFFAOYSA-N 0.000 description 7
- 229910001096 P alloy Inorganic materials 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000003974 emollient agent Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 229910000997 High-speed steel Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- 229910001060 Gray iron Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002088 nanocapsule Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010329 laser etching Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0272—Deposition of sub-layers, e.g. to promote the adhesion of the main coating
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/006—Graphite
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
Abstract
The invention provides a compressor lubricating slip sheet, which comprises a slip sheet body, a nitriding layer, a Ni-P layer and a nano grease microcapsule; the nitriding layer penetrates into the inner part and the surface of the slip sheet body, and the Ni-P layer is deposited on the surface of the nitriding layer; the nano grease microcapsule is distributed among the sliding vane body, the nitriding layer and the Ni-P layer, and nano solid grease is filled in the nano grease microcapsule; the slide sheet body is D type cast iron, the pearlite content in the cast iron is less than 15%, the ferrite is in reticular dendritic distribution, the graphite form is in punctiform distribution, the hardness of the D type cast iron is more than 60HRC after quenching and low-temperature tempering, and the strength is more than 650MPa; the compressor comprises the lubricating sliding vane. The invention has the advantages that: the Ni-P plating layer and the sliding vane body have high bonding strength, excellent wear resistance, low manufacturing cost and smaller sliding vane impact noise; when the slide sheet is subjected to extrusion friction under pressure, the nano grease microcapsules are broken, and grease flows out to cover the surface of the slide sheet, so that the friction coefficient between the slide sheet and the roller is further reduced.
Description
Technical Field
The invention belongs to the field of compressor lubrication, and particularly relates to a compressor lubricating sliding vane and a compressor.
Background
The lubrication state has three forms: fluid lubrication, boundary lubrication and mixed lubrication. When the fluid is lubricated, the surfaces of the two parts are completely lubricated by the lubricating oil, the oil film is thick, the friction coefficient is small, the abrasion is less, and the abrasion is small; under the boundary lubrication mode, the surfaces of two parts are partially in direct contact, the oil film is thin, the friction coefficient is high, the abrasion is large, and the abrasion is serious; mixed lubrication is between fluid lubrication and boundary lubrication. Most of the rotor type compressor kinematic pairs are in a fluid lubrication state, but the R surface of the sliding vane and the outer surface of the rotor are in a boundary lubrication state or a mixed lubrication state.
The sliding vane is one of important elements of a rotary compressor, performs reciprocating inertial motion in a sliding vane groove of an air cylinder, the R surface of the head of the sliding vane is always tightly attached to an eccentric roller of the compressor to form a friction pair, the friction pair is in line contact, the sliding vane works under the conditions of high temperature, high pressure and high-speed impact load of a refrigerant medium for a long time and is in a critical lubrication state of oil shortage or oil shortage, and the contact part of the R surface of the head of the sliding vane and the roller is extremely easy to wear; in the past, the sliding sheet is seriously worn, and the R surface of the head part of the sliding sheet is even ground flat, so that the form and position tolerance of the surface is changed.
On the other hand, the large end face of the sliding sheet and two side faces of the sliding sheet groove of the cylinder form a friction pair, the height face of the sliding sheet and the upper and lower flanges form a friction pair, when the pump body is installed, the height of the sliding sheet is smaller than the height of the cylinder, an end face gap exists between the sliding sheet and the upper and lower flanges, the thickness of the sliding sheet is smaller than the width of the cylinder groove, an end face axial gap exists between the sliding sheet and the cylinder groove, and the gap is one of main leakage channels of the compressor refrigerant. At this moment, if the clearance is too big, gaseous cold volume is revealed greatly, can lead to compressor cold volume to reduce, and the clearance undersize, because the sliding vane corresponds vice is more, under the high pressure condition, the sliding vane wearing and tearing aggravation, the consumption increases, and the volume aggravation of surface wear influences original surface size and geometric tolerances and makes to reveal further increase, causes vicious circle, seriously causes the card phenomenon of dying and then influences the long-term reliability of compressor even, finally influences the life of compressor.
Along with the gradual elimination of old national standard machine types and the popularization of new national standard frequency conversion compressors and energy-saving technologies, the requirements on the energy efficiency of the compressors are greatly improved, the working pressure of the compressors is greatly improved, particularly the improvement on the current ten-year guarantee period, and further higher requirements on the strength, the wear resistance, the fatigue resistance and the service life of the sliding sheet are met. The traditional sliding vane material can not meet the use requirement of the current compressor.
At present, the problem of abrasion of the R surface of the sliding piece head and the outer surface of a roller is solved by plating the sliding piece by using plating methods such as Physical Vapor Deposition (PVD), atomic deposition (CVD), plasma Chemical Vapor Deposition (PCVD) and the like to improve the surface hardness of the sliding piece, so that the abrasion of the sliding piece is reduced, but the methods are high in cost, the binding force of the sliding piece coating and a metal substrate is small, the long-term reliability of the sliding piece can not be guaranteed after the coating is dropped or abraded under a boundary lubrication state for a long time, and the coating is dropped or abraded to aggravate the size change of the sliding piece, so that the leakage of a refrigerant is increased, and the energy efficiency of a compressor is reduced.
In order to solve the problem, patent application CN114623080A discloses a sliding sheet with a C-shaped groove, compared with a traditional arc sliding sheet, the sliding sheet with the C-shaped groove can bring lubricating liquid in a suction cavity of a compressor into the C-shaped groove, so that the lubricating effect is improved, the friction coefficient and the wear are reduced, and the service life of the compressor is prolonged.
Patent CN202483877U, CN2931862Y discloses a sliding vane with a rolling needle at the head, which converts the traditional linear contact form of the sliding vane head and the roller into sliding friction, so as to reduce the friction coefficient and further reduce the power consumption of the compressor. But the round holes and the wedge-shaped grooves in the structure can not be produced and processed on a large scale. The head R of the formed grinding wheel is difficult to manufacture when a circular hole is machined, the precision cannot meet the requirement, the embedded grinding wheel cannot be repaired if the embedded grinding wheel is adopted, the service life of the grinding wheel is short, and the manufacturing cost is high.
Patent application CN110848138A discloses a gleitbretter that gleitbretter both sides face has little pit structure + antifriction coating, antifriction coating covers friction side and little pit structure inner wall, can store emollient in the little pit structure, when the relative motion takes place for the friction pair, because the emollient in the little pit structure of extrusion can regard as secondary supply source, and emollient gets into between the friction pair, has increased the content of emollient, plays the effect that reduces friction. However, the micro-pit structure requires lubricant oil at the position of the vane in the compressor for storage, and thus, in the inventive structure, the micro-pit structure can be designed only in two sides. However, since the head of the R-face of the slider is in line contact with the roller at this position and is in a critical lubrication state of oil shortage or oil shortage for a long time, the oil cannot be stored in the R-face by the dimples, so that the effect of solving the problem of wear between the slider and the roller is not great.
Disclosure of Invention
The invention provides a compressor lubricating slip sheet, aiming at the problems that in the prior art, the contact part of the R surface of the slip sheet head and a roller is very easy to wear, a plated lubricating layer is easy to fall off or the manufacturing cost of a sliding groove structure is changed and the like.
The technical scheme of the invention is as follows: a compressor lubrication sliding vane comprises a sliding vane body, a nitriding layer, a Ni-P layer and a nano grease microcapsule; the nitriding layer penetrates into the inner part and the surface of the sliding sheet body, and the Ni-P layer is deposited on the surface of the nitriding layer; the nano grease microcapsule is distributed among the sliding sheet body, the nitriding layer and the Ni-P layer, and nano solid grease is filled in the nano grease microcapsule; the slide sheet body is D type cast iron, the pearlite content in the cast iron is less than 15%, the ferrite is in reticular dendritic distribution, the graphite form is in punctiform distribution, the hardness of the D type cast iron is more than 60HRC after quenching and low temperature tempering, and the strength is more than 650MPa.
Furthermore, the surface hardness of the nitrided slide piece body is 600 HV-800 HV, the surface roughness is Ra0.3-Ra0.6, and the depth of a nitrided layer is 10-15 mu m.
Furthermore, the content of P in the Ni-P layer is 8-10%, the thickness of the Ni-P layer is 5-10 μm, and the hardness is more than 1000HV.
Furthermore, the nano grease microcapsules in the Ni-P layer of the outermost layer are arranged at a position 15-20 microns away from the surface of the slide body, the microcapsules in the nitriding layer are arranged at a position 10-15 microns away from the surface of the slide body, and the microcapsules in the slide body layer are arranged at a position 5-10 microns away from the surface of the slide body.
Furthermore, the quantity of the nano grease microcapsules in the Ni-P layer, the nitriding layer and the sliding sheet body is distributed in proportion, and the quantity Q1 of the microcapsules in the Ni-P layer is 9-12 per sm 2 The number of microcapsules in the nitriding layer is 1.5-2 times Q1, and the number of microcapsules in the sliding sheet body is 3-5 times Q1.
Further, the nanoscale solid grease comprises at least one of molybdenum phosphate and graphene.
Furthermore, the quenching temperature of the D-shaped cast iron is 850 ℃, and the low-temperature tempering temperature is 200 ℃.
Preferably, the pearlite content in the cast iron material is 5%, the size of the D-type dot graphite is 3-5 μm, the hardness of the cast iron is 265HB, the hardness of the cast iron after quenching and low-temperature tempering is 63HRC, the surface hardness after nitriding is 750HV, the thickness of a nitriding layer is 10 μm, and the surface roughness after nitriding is Ra0.4; the thickness of the Ni-P layer is 10 mu m, and the hardness is 1085HV; the number of the nano grease microcapsules in the Ni-P layer is 11/sm 2 The number of microcapsules in the nitriding layer is 16/sm 2 The number of microcapsules in the slide sheet body layer is 35/sm 2 。
Preferably, the cast iron material has a pearlite content of 10%, a D-type dotted graphite size of 3-5 μm, and a cast iron hardness of 245HB, and the cast iron is quenched and returned at a low temperatureThe hardness after fire is 60HRC, the surface hardness after nitriding is 710HV, the thickness of a nitriding layer is 8 mu m, and the surface roughness after nitriding is Ra0.8; ni-P layer thickness 10 μm, hardness 1023HV; the number of the nano grease microcapsules in the Ni-P layer is 6/sm 2 The number of microcapsules in the nitriding layer is 11/sm 2 The number of microcapsules in the slide sheet body layer is 20/sm 2 。
The invention also provides a compressor, and the compressor is adopted to lubricate the sliding vane.
The invention has the advantages that: the adopted sliding vane body is made of high-strength D-type cast iron material, nitriding treatment is carried out, nickel-phosphorus alloy is plated in a vapor deposition mode, and the obtained Ni-P coating has high bonding strength with the sliding vane body, high surface hardness, excellent wear resistance, uniform coating, low manufacturing cost and smaller impact noise of the cast iron sliding vane; when the sliding sheet is subjected to extrusion friction due to pressure, the grease microcapsules at different positions are broken, grease flows out to cover the surface of the sliding sheet, the friction coefficient of the sliding sheet and a roller is further reduced, and the friction coefficient of the sliding sheet, an air cylinder and a flange can also be reduced.
Drawings
FIG. 1 is a structure diagram of a slide body D-type cast iron metallographic structure;
FIG. 2 is a schematic view of the metallurgical structure of the slip sheet of the present invention;
FIG. 3 is a schematic diagram of the distribution of the nano-grease microcapsules with a sliding sheet structure according to the present invention;
FIG. 4 is a labeled diagram of a slide-sheet structure nano-grease microcapsule of the present invention;
FIG. 1-slider body; 2-a nitrided layer; 3-Ni-P layer; 4-nanometer grease microcapsule.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The compressor lubricating slip sheet provided by the invention is mainly characterized in that the slip sheet (especially the lubricity of an R surface) is improved from two layers, so that the problem of the bonding strength between a slip sheet base material and a lubricating coating is solved, and the coating is prevented from falling off; and secondly, a microstructure capable of continuously releasing lubricating grease is provided, the grease can be automatically compensated according to the wear degree or the running time, the lubricating effect is continuously provided between the sliding sheet and the roller, the boundary lubricating state between the sliding sheet and the roller is changed into a fluid lubricating state, and the friction coefficient between the sliding sheet and the roller is reduced.
The sliding vane structure of the invention can automatically compensate lubrication according to the abrasion degree or the running time, and comprises: a sliding vane body, a nitriding layer, a Ni-P layer and a nano grease microcapsule. Wherein the sliding vane body is tightly combined with the nitriding layer and the Ni-P layer; the nano grease microcapsule is distributed among the sliding sheet body, the nitriding layer and the Ni-P layer.
The sliding vane body adopted by the invention is made of high-strength D-type cast iron material, and is subjected to nitriding treatment and then is plated with nickel-phosphorus alloy in a vapor deposition mode, so that the obtained Ni-P coating has high bonding strength with the sliding vane body, high surface hardness, excellent wear resistance and uniform coating; meanwhile, nano grease microcapsules are filled in each layer of the sliding sheet body, the nitriding layer and the Ni-P coating at a specific distance through laser etching, when the sliding sheet is subjected to pressure and is subjected to extrusion friction, the grease microcapsules at different positions are broken according to different friction degrees (or different running times), grease flows out to cover the surface of the sliding sheet, the friction coefficient of the sliding sheet and a roller can be reduced, and the friction coefficient of the sliding sheet, an air cylinder and a flange can also be reduced.
As shown in fig. 1, the pearlite content in the D-type cast iron material of the slide body is less than 15%, and the ferrite is in a reticular dendritic distribution to form a continuous 'skeleton', like a strengthening phase in a composite material; secondly, the graphite form in the cast iron is punctiform, the graphite length is 3-5 μm, compared with the traditional A-type graphite gray cast iron (the graphite length is more than 200 μm), the graphite form in the D-type cast iron adopted by the invention has small cutting effect on the matrix, and can play the strengthening effect of the matrix structure to the maximum extent, so the strength of the D-type cast iron is far higher than that of the traditional pearlite gray cast iron, and the strength is improved by more than 30 percent; because the slide sheet bears larger pressure, the D-type cast iron material needs to be subjected to heat treatment, and the hardness is more than 60HRC and the strength is more than 650MPa after quenching and low-temperature tempering.
The D-type cast iron material with high strength is selected instead of the existing high-speed steel or stainless steel slide sheet material, because the steel slide sheet material has poor wear resistance although the strength is high and the wear resistance is good, and the steel slide sheet is impacted by high-pressure high-speed airflow for a long time, the noise of the slide sheet is obvious. Therefore, the sliding sheet material adopts cast iron material, and compared with high-speed steel or stainless steel, the cast iron has excellent wear resistance, good noise prevention and shock absorption effects and low cost.
The surface of the cast iron base material is subjected to nitriding strengthening, and because the cast iron adopted by the invention does not contain alloy elements, the surface hardness Y2=600 HV-800 HV after nitriding and the depth D2= 10-15 μm of a nitriding layer. Compared with the conventional sliding vane technical scheme, the steel sliding vane is subjected to high-speed steel/stainless steel sliding vane + nitriding treatment, because the steel sliding vane contains alloy elements such as Cr, ni and the like, a high-hardness CrN and other strengthening phases can be generated after nitriding, and the hardness can reach 1000HV, so that the use requirement of the sliding vane cannot be met by the single cast iron + nitriding treatment; the cast iron slip sheet of the invention needs to be processed by nickel and phosphorus plating after being processed by nitriding treatment, and the vapor deposition Ni-P plating layer is suitable for parts with any complex shape, can obtain uniform plating layer, and has high bonding strength with a matrix, high surface hardness and excellent wear resistance.
The general cast iron has a graphite phase, and the graphite cannot react with external elements at the position, so that the effect of directly adopting a physical or chemical vapor deposition metal coating on the cast iron is very poor, if the cast iron is directly plated with nickel, the bonding strength of an Ni-P coating and a matrix is low, and the coating is easy to fall off.
The surface roughness of the nitriding layer needs to be Ra0.3-Ra0.6, the roughness is too low, the effective contact area of nickel plating is small, the bonding strength is low, the roughness is too high, a nickel plating layer can not completely cover the nitriding layer, the bonding strength is also low, the P content in the Ni-P plating layer is 8% -10%, the thickness D1= 5-10 μm, and the hardness Y1 is more than 1000HV.
The nano oil microcapsule is filled with nano solid lubricant, including molybdenum phosphate, graphene and the like, the quantity distribution and filling positions of the nano oil microcapsule on each layer of the sliding vane body, the nitriding layer and the Ni-P coating are related to the abrasion state, and when the abrasion is severe, the quantity of the nano oil is more when the nano oil microcapsule is closer to the sliding vane body; according to the wear degree of the sliding sheet checked by a common compressor after sale, in the distribution mode of the nano grease microcapsule, the nano capsules are uniformly distributed and are arranged in proportion; as shown in fig. 3, the distance length H1= 15-20 μm between the capsule position of the outermost nickel plating layer and the slide body, the distance length H2= 10-15 μm between the capsule position of the intermediate layer and the slide body, and the capsule position H3= 5-10 μm of the body layer are adopted.
The sliding sheet is in a boundary lubrication state in the early stage of the operation of a compressor, the sliding sheet is slightly worn, when the wear depth is more than 5 mu m, microcapsules on the outermost layer are broken by friction extrusion, internal grease flows out to cover the surface of the sliding sheet, solid grease has better lubrication effect compared with liquid grease, the friction wear between the sliding sheet and a part to be ground can be relieved, the power consumption of the compressor is reduced, the sliding sheet is slightly worn and is used as a first layer for protection, and the number of the Ni-P layer capsules is designed to be Q1= 9-12/sm 2 (square silk meter), too little quantity, unobvious lubricating effect; the wear is further increased along with the prolonging of the operation time, the wear depth is more than 10 mu m, the outermost layer is completely worn off at the moment, the microcapsules on the middle nitriding layer are broken, and the wear degree is increased, so that the number of the microcapsules designed on the middle nitriding layer is more than that of the microcapsules designed on the outermost layer, and the number of the microcapsules Q2= 1.5-2Q 1; for long-term use in some environments with severe working conditions, when the sliding wear depth of the sliding piece is more than 20 mu m, the coating fails, and at the moment, the sliding pieceThe body directly contacts parts such as rollers and flanges, and as the hardness of the slide sheet body is lower than that of the coating, the lubrication requirement is far higher than that of the outermost layer and the intermediate layer, so that the quantity Q3= 3-5Q 1 of the nano capsules on the slide sheet body layer.
The effects of the present invention will be further described below by way of several specific embodiments.
Example 1
The D-type cast iron material adopted by the slide sheet body has the pearlite content of 5% before heat treatment, the D-type dotted graphite size of 3-5 mu m, the cast iron hardness of 265HB, the hardness after heat treatment (quenching at 850 ℃ and tempering at 200 ℃) of 63HRC, the surface hardness after nitriding treatment of 750HV, the thickness of a nitriding layer of 10 mu m and the surface roughness after nitriding Ra0.4; the body of the slip sheet is nitrided and then plated with nickel-phosphorus alloy, the thickness of the Ni-P plating layer is 10 mu m, and the surface hardness reaches 1085HV.
The number Q1= 11/sm of nano grease microcapsules etched by the laser of the Ni-P layer of the outermost layer 2 The number of the nitriding layer capsules in the middle layer is Q2= 16/sm 2 The number of the body layer capsules Q3= 35/sm 2 。
Example 2
D-type cast iron material adopted by the slide sheet body has pearlite content of 10% before heat treatment, D-type dotted graphite size of 3-5 μm, cast iron hardness of 245HB, hardness of 60HRC after heat treatment (quenching at 850 ℃ and tempering at 200 ℃), surface hardness of 710HV after nitriding treatment, nitriding layer thickness of 10 μm and surface roughness Ra0.8 after nitriding; the body of the sliding vane is nitrided and then plated with nickel-phosphorus alloy, the thickness of the Ni-P plating layer is 10 mu m, and the surface hardness reaches 1023HV.
The number Q1= 6/sm of nano grease microcapsules etched by the laser of the Ni-P layer of the outermost layer 2 The number of the nitriding layer capsules in the middle layer is Q2= 11/sm 2 The number of the body layer capsules Q3= 20/sm 2 。
Example 3
The cast iron material adopted by the sliding vane body has the pearlite content of 20% before heat treatment, the D-type dotted graphite size of 3-5 mu m, the cast iron hardness of 213HB, the hardness after heat treatment (quenching at 850 ℃ and tempering at 200 ℃) of 55HRC, the surface hardness after nitriding treatment of 680HV, the thickness of a nitriding layer of 10 mu m and the surface roughness after nitriding Ra0.3; the body of the sliding vane is nitrided and then plated with nickel-phosphorus alloy, the thickness of the Ni-P coating is 10 mu m, and the surface hardness reaches 938HV.
The number Q1= 11/sm of nano grease microcapsules etched by the laser of the Ni-P layer of the outermost layer 2 The number of the nitriding layer capsules in the middle layer is Q2= 16/sm 2 The number of the body layer capsules Q3= 35/sm 2 。
Comparative example 1
The sliding sheet is subjected to nitriding treatment by using conventional stainless steel as a body, and the thickness of a nitriding layer is 10 mu m.
The coating strength of the materials of examples 1-3 and comparative examples is tested by a scratch tester, the friction coefficient of the material of the invention is tested by a universal friction tester MMW-1, and the test conditions are as follows: the loading force is 400N, the rotating speed is 1200r, the time is 60min, and the oil is lack of lubrication (1-3 drops of oil). The friction coefficient after the test is directly obtained by a universal testing machine to calculate an average value, and a white light interferometer is adopted to detect the abrasion depth of the sample piece after the test. The friction coefficient and the abrasion loss of the cast iron sliding sheet and the conventional stainless steel nitriding sliding sheet and the opposite-grinding FC300 material in an oil-deficient state are as follows:
TABLE 1 comparison of the lubrication wear of the sliding vane of the invention with that of a conventional stainless steel nitrided sliding vane
| Measurement index | Example 1 | Example 2 | Example 3 | Comparative example 1 |
| Coefficient of friction | 0.08 | 0.11 | 0.14 | 0.12 |
| Amount of wear (μm) | 1.0 | 1.5 | 1.8 | 1.7 |
TABLE 2 bonding Strength enhancement contrast after nitriding of slip sheet + plating of Nickel-phosphorus alloy according to the invention
| Measurement index | Example 1 | Example 2 | Example 3 | Direct nickel-phosphorus plating layer for cast iron |
| Bonding strength | 51N | 42N | 46N | 38N |
Meanwhile, the noise test is carried out on the single-cylinder compressor with the material sliding loader of the invention of the optimal embodiment 1 and the pressure of 1.5P below, and the test data are shown as follows:
| measurement index | Invention cast iron material sliding vane | Stainless steel nitriding slip sheet |
| Sound power level db (A) | 65 | 67 |
It can be seen from the above tests that the friction coefficients of the materials of the sliding vane in the examples 1 and 2 of the invention are lower than those of the conventional stainless steel nitrided sliding vane, but the surface roughness of nitriding of the primer layer is higher than Ra0.6 in the example 2, so that the Ni-P layer can not completely cover the nitrided layer, and the bonding strength is slightly lower, but the friction coefficient is still lower than that of the conventional stainless steel nitrided sliding vane. Example 3 as reference, the cast iron used has a higher pearlite content, a lower hardness of less than 60HRC, and a combined nitrided layer and Ni — P layer, although having improved strength, has a surface hardness of only 938HV, so the coefficient of friction and the amount of wear are slightly higher than those of conventional stainless steel nitrided sliding pieces. The material parameters of the sliding sheet in the embodiment 1 reach the minimum friction coefficient, the bonding strength with the nitriding layer and the Ni-P layer is strongest, and the comprehensive test performance is best. Meanwhile, by adopting the sliding sheet, the impact noise of the sliding sheet of the compressor is smaller when the sliding sheet is used, so that the integral noise power level is also reduced; the invention proves that the invention can realize comprehensive excellent effects of reducing the cost of the sliding vane, enhancing the lubrication degree and reducing the noise.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A compressor lubrication slide vane characterized by: comprises a sliding vane body, a nitriding layer, a Ni-P layer and a nano grease microcapsule; the nitriding layer penetrates into the inner part and the surface of the slip sheet body, and the Ni-P layer is deposited on the surface of the nitriding layer; the nano grease microcapsule is distributed among the sliding vane body, the nitriding layer and the Ni-P layer, and nano solid grease is filled in the nano grease microcapsule; the slide sheet body is D type cast iron, the pearlite content in the cast iron is less than 15%, the ferrite is in reticular dendritic distribution, the graphite form is in punctiform distribution, the hardness of the D type cast iron is more than 60HRC after quenching and low temperature tempering, and the strength is more than 650MPa.
2. The compressor lubrication slide of claim 1, wherein: after nitriding, the surface hardness of the slide sheet body is 600 HV-800 HV, the surface roughness is Ra0.3-Ra0.6, and the depth of a nitriding layer is 10-15 mu m.
3. The compressor lubrication slide of claim 1, wherein: the content of P in the Ni-P layer is 8-10%, the thickness of the Ni-P layer is 5-10 μm, and the hardness is more than 1000HV.
4. The compressor lubrication slide of claim 1, wherein: the nano grease microcapsules in the Ni-P layer of the outermost layer are arranged at a position 15-20 mu m away from the surface of the slip sheet body, the microcapsules in the nitriding layer are arranged at a position 10-15 mu m away from the surface of the slip sheet body, and the microcapsules in the slip sheet body layer are arranged at a position 5-10 mu m away from the surface of the slip sheet body.
5. The compressor of claim 1Lubricated gleitbretter, its characterized in that: the quantity of the nano grease microcapsules in the Ni-P layer, the nitriding layer and the slip sheet body is distributed in proportion, and the quantity Q1 of the microcapsules in the Ni-P layer is 9-12 per sm 2 The number of microcapsules in the nitriding layer is 1.5-2 times Q1, and the number of microcapsules in the sliding sheet body is 3-5 times Q1.
6. The compressor lubrication slide of claim 1, wherein: the nanoscale solid grease comprises at least one of molybdenum phosphate and graphene.
7. The compressor lubrication slide of claim 1, wherein: the quenching temperature of the D-shaped cast iron is 850 ℃, and the low-temperature tempering temperature is 200 ℃.
8. The compressor lubrication slide of any of claims 1 to 7, wherein: the pearlite content in the cast iron material is 5%, the size of D-type dotted graphite is 3-5 μm, the hardness of the cast iron is 265HB, the hardness of the cast iron after quenching and low-temperature tempering is 63HRC, the surface hardness after nitriding is 750HV, the thickness of a nitriding layer is 10 μm, and the surface roughness after nitriding is Ra0.4; the thickness of the Ni-P layer is 10 mu m, and the hardness is 1085HV; the quantity of the nano grease microcapsules in the Ni-P layer is 11/sm 2 The number of microcapsules in the nitriding layer is 16/sm 2 The number of microcapsules in the slide sheet body layer is 35/sm 2 。
9. The compressor lubrication slide of any of claims 3 to 7, wherein: the pearlite content in the iron material is 10%, the size of D-type dotted graphite is 3-5 μm, the hardness of cast iron is 245HB, the hardness of the cast iron after quenching and low-temperature tempering is 60HRC, the surface hardness after nitriding is 710HV, the thickness of a nitriding layer is 8 μm, and the surface roughness after nitriding is Ra0.8; ni-P layer thickness 10 μm, hardness 1023HV; the number of the nano grease microcapsules in the Ni-P layer is 6/sm 2 The number of microcapsules in the nitriding layer is 11/sm 2 The number of microcapsules in the slide sheet body layer is 20/sm 2 。
10. A compressor comprising a compressor lubrication slide as claimed in any one of claims 1 to 9.
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| US4666786A (en) * | 1984-03-19 | 1987-05-19 | Aisin Seiki Kabushiki Kaisha | Sliding surface of composite nickel-plated sliding member |
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| US4666786A (en) * | 1984-03-19 | 1987-05-19 | Aisin Seiki Kabushiki Kaisha | Sliding surface of composite nickel-plated sliding member |
| JP2000136784A (en) * | 1998-08-28 | 2000-05-16 | Taiho Kogyo Co Ltd | Vane for rotary compressor |
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| US20140038862A1 (en) * | 2012-08-06 | 2014-02-06 | Exxonmobil Research And Engineering Company | Anti-wear performance of lubricants using carbon nanoplatelets |
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