CN106762631A - A kind of scroll compressor thermomechanical components and its manufacture method and scroll compressor - Google Patents
A kind of scroll compressor thermomechanical components and its manufacture method and scroll compressor Download PDFInfo
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- CN106762631A CN106762631A CN201710109901.8A CN201710109901A CN106762631A CN 106762631 A CN106762631 A CN 106762631A CN 201710109901 A CN201710109901 A CN 201710109901A CN 106762631 A CN106762631 A CN 106762631A
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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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
- F04C18/0223—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving with symmetrical double wraps
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/024—Anodisation under pulsed or modulated current or potential
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/026—Anodisation with spark discharge
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
-
- 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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0269—Details concerning the involute wraps
-
- 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
- F05C2201/90—Alloys not otherwise provided for
- F05C2201/903—Aluminium alloy, e.g. AlCuMgPb F34,37
-
- 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
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0865—Oxide ceramics
- F05C2203/0869—Aluminium oxide
-
- 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
- F05C2251/00—Material properties
- F05C2251/14—Self lubricating materials; Solid lubricants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention relates to a kind of scroll compressor thermomechanical components, including dynamic vortex part and quiet scroll；Dynamic vortex part includes the first main body, and quiet scroll includes the second main body；Surface relative with the second main body in the first main body is defined for first surface, the surface relative with the first main body is second surface in the second main body；Ceramic layer is formed by differential arc oxidation treatment at first surface, and/or second surface, to reduce the service wear of dynamic vortex part and quiet scroll.The anti-wear performance of the ceramic layer is good, and hardness is high, and surface roughness is low, makes the scroll compressor thermomechanical components that the service behaviour of quality of fit high and stabilization can be kept during long-term use.The invention further relates to a kind of scroll compressor with the scroll compressor thermomechanical components and the manufacture method of the scroll compressor thermomechanical components.The scroll compressor reliability is high, long service life；The manufacture method is simple, efficient, energy-conservation, advantageously reduces pollution.
Description
Technical field
The present invention relates to Compressor Technology field, and in particular to a kind of scroll compressor thermomechanical components and its manufacture method and
Scroll compressor.
Background technology
Scroll compressor as a kind of new, energy-conservation, material saving and low noise positive displacement compressor, by more and more extensive
Use, its cardinal principle is to realize pressure using the consecutive variations of the relative revolution motion formation dead volume of dynamic and static scroll plate
The purpose of contracting gas.Wherein the material of orbiter and fixed scroll, machining quality and both quality of fits are directly determined
Gas compression amount and then influence the Performance And Reliability of whole machine.
Demand based on energy-saving and emission-reduction, increasing orbiter and fixed scroll are using casting or forged aluminium at present
Alloy material.Generally, to produce adhesive wear when avoiding same type material as friction pair, need to be to orbiter and quiet whirlpool
At least one carries out surface modification treatment in capstan, but can there are problems that three below：One is by the modified part in surface
Surface forms weaker zone, and larger coefficient of friction can be produced when the weaker zone is with the break-in in the early stage of another scroll plate.It is more tight
The situation of weight is, it is possible to due to modified surface hard particles and scroll plate break-in when produce TRANSIENT HIGH TEMPERATURE and cause freezing
Machine oil is carbonized, and causes to freeze deterioration of oil, so as to cause to have a strong impact on to compressor performance and reliability；Two is that compressor exists
Actual motion for a period of time after, because coating abrasion amount gradually increases, the cooperation before the quality of fit of dynamic and static scroll plate and assembling
Precision difference is larger, this performance that can cause the leakage of compressed gas and then influence compressor；Three is due to compressor permanent worker
The vortex pan coating that work causes surface modified gradually grinds off and spills the aluminium base of scroll plate, now with same type aluminium alloy conduct
Adhesive wear is easily produced when friction is with pair, is made two kinds of parts that the final whole machines of occlusion to occur and is failed.Therefore dynamic whirlpool how is reduced
Coefficient of friction when capstan and the break-in of fixed scroll initial stage, reduce due to the leakage of compressed gas caused by coating abrasion, avoid
Due to compressor failure caused by coating Fast Wearing, performance and reliability to improving compressor are significant.
Chinese patent literature CN2519859Y and CN1065025C has carried out hard anode to orbiter or fixed scroll
Oxidation or anodized.But it should be noted that hard anodizing surface quality and material chemical composition, microscopic structure point
Cloth, moulding process, process for machining, condition of heat treatment etc. have much relations, and the accuracy requirement for reaction condition is higher, compared with
Small condition changes may be caused hard oxygen poor surface quality and cannot meet reliability testing requirement, and hard anodic oxygen
The roughness for changing film layer is low 1-2 grades compared with machining state, and dynamic and static scroll plate belongs to high accuracy mating parts, especially scroll wrap
Top and substrate position roughness high can all influence the gas compression amount in compression chamber, and then cause the overall performance of compressor to be received
To influence.Although anode oxide film surface quality is slightly good, the soft of anode oxide film is also to change, it is impossible to full
Demand of the sufficient compressor scroll plate for long-term wearability.
Chinese patent literature CN1212332A carries out Ni-P-B surface treatments to aluminium base orbiter surface, although the coating
Section hardness is higher, but this kind of coating is that attachment is arranged on outside matrix, although its have certain adhesive force with matrix but
Be easier to come off, and come off the sheet coating for falling can be used as the Performance And Reliability of impurity effect compressor.
Meanwhile, the above is required to for the mode that compressor orbiter or fixed scroll are surface-treated or part needs
The operation such as one or many pickling, alkali cleaning is carried out, causes process step cumbersome, processing procedure energy ezpenditure and quantity of wastewater effluent
It is larger, do not meet the environmental protection concept of energy-saving and emission-reduction.
The content of the invention
In order to solve the above mentioned problem of prior art presence, the invention provides a kind of scroll compressor thermomechanical components and its system
Make method and scroll compressor.Purpose is that the surface for making dynamic vortex part and/or quiet scroll has good wearability
Energy and rock-steady structure difficult for drop-off.
The technical solution adopted in the present invention is：
A kind of scroll compressor thermomechanical components, including dynamic vortex part and quiet scroll；
The dynamic vortex part includes the first main body, and the quiet scroll includes the second main body；Define in first main body
The surface relative with second main body is first surface, and the surface relative with first main body is the in second main body
Two surfaces；
Ceramic layer is formed by differential arc oxidation treatment at the first surface, and/or the second surface, it is described to reduce
The service wear of dynamic vortex part and the quiet scroll.
Preferably, first main body and second main body are made by aluminum alloy materials, the aluminum alloy materials
Constituent is included (by weight percentage)：9-14%Si, 0.5-3%Cu, Mg≤1%, Fe ＞ 1%, Zn≤0.8%, Ni
≤ 0.5%, remaining is Al；
The ceramic layer is al oxide layer.
Preferably, the thickness of the ceramic layer is 5-30 μm.
Preferably, the thickness of the ceramic layer is 10-20 μm.
Preferably, the section vickers microhardness of the ceramic layer is not less than 900HV.
Preferably, the surface roughness of the ceramic layer is not more than 1 μm.
Preferably, by polishing, polishing thickness is 2-5 μm on the surface of the ceramic layer.
Preferably, the surface of the ceramic layer is provided with lubricating layer, and the surface roughness of the lubricating layer is not more than 1 μm.
Preferably, the thickness of the lubricating layer is 5-15 μm.
Preferably, the lubricating layer is the one kind in silicone layer, polytetrafluoroethylene floor or layer of molybdenum-disulfide.
A kind of scroll compressor, including described scroll compressor thermomechanical components.
A kind of manufacture method of described scroll compressor thermomechanical components, comprises the following steps：
The second surface of first surface, and/or second main body to first main body carries out differential arc oxidation treatment,
Make to form the ceramic layer at the first surface, and/or at the second surface.
Preferably, first main body, and/or second main body are placed in and differential arc oxidation treatment are carried out in electrolyte,
The constituent of the electrolyte includes：
Phosphate 10-15g/L, wolframic acid 2-5g/L, NaOH 0.2-1.5g/L, EDETATE SODIUM 1.5-5g/L.
Preferably, the reaction condition for carrying out differential arc oxidation treatment is：
Power pulse frequency 400-700Hz, pulse duty factor 10-20%, current density 2.5-6.5A/dm2, voltage 300-
500V, differential arc oxidation time are 10-30min, and the temperature of the electrolyte for being used is 20-40 DEG C.
Preferably, the manufacture method is further comprising the steps of：
The ceramic layer is polished, the surface roughness Ra of the ceramic layer after polishing is not more than 1 μm.
Preferably, the polishing thickness being polished to the ceramic layer is 2-5 μm.
Preferably, when including the lubricating layer, the manufacture method of the scroll compressor thermomechanical components also includes following step
Suddenly：
The lubricating layer is formed in the surface baking-curing of the ceramic layer；The lubricating layer is silicone layer, polytetrafluoro
One kind in pvdf layer or layer of molybdenum-disulfide；And the surface roughness of the lubricating layer is not more than 1 μm, thickness is 5-15 μm.
Beneficial effects of the present invention are：
1st, ceramic layer is formed by way of differential arc oxidation treatment at the first surface and/or the second surface, institute
State ceramic layer structure fine and close, hardness is high, anti-wear performance is good, can reduce the abrasion operationally of dynamic vortex part and quiet scroll
Speed, reduces wear extent, so as to avoid due to caused by abrasion compressor arrangement quality of fit be deteriorated, leakage of compressed gas or
The problem of adhesive wear and occlusion failure is produced, is conducive to extension device service life.Meanwhile, the ceramic layer is by the first main body
And/or second material of main part growth in situ obtain, the combination of itself and the first main body and/or the second main body is very firm, thus can
To avoid the occurrence of the problem that ceramic layer comes off and damages compressor operating reliability.
2nd, the ceramic layer has good surface quality, can reduce between the dynamic vortex part and the quiet scroll
The coefficient of friction of the initial stage of carrying out break-in, advantageously reduces running-in time, and prevent due to the larger hard particles of surface size with
The scroll plate friction being engaged produces TRANSIENT HIGH TEMPERATURE and makes the rotten problem of refrigerator oil carbonization, it is ensured that the reliable and stable fortune of compressor
Turn.
3rd, the manufacture method of the scroll compressor thermomechanical components is simple to operate, and process stabilizing reliability, equipment cost is relatively low, easily
In operation, reaction can be carried out at normal temperatures, and need not carry out follow-up pickling or alkali cleaning treatment, and the reagent for using is environment-friendly type examination
Agent, meets environment protection emission requirement, and quantity of wastewater effluent is smaller, and energy ezpenditure is less, is conducive to energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is the front view of dynamic vortex part of the present invention；
Fig. 2 is cross-sectional view (including the ceramic layer and the lubrication of dynamic vortex part of the present invention
Layer)；
Fig. 3 is the front view of quiet scroll of the present invention；
Fig. 4 is that (ceramic layer and the lubricating layer do not show for the cross-sectional view of quiet scroll of the present invention
Go out)；
Fig. 5 is the part section structural representation of scroll compressor of the present invention；
Fig. 6 is shown by the wear rate test result of various different surface treatment modes gained test specimen.
In figure：1st, dynamic vortex part；11st, the first main body；2nd, quiet scroll；21st, the second main body；3rd, ceramic layer；4th, lubricating layer；
5th, case top lid；6th, housing lower cover；7th, upper bracket；8th, bent axle.
Specific embodiment
For be expanded on further the present invention to reach technological means and effect that predetermined purpose is taken, below in conjunction with accompanying drawing with
And preferred embodiment, to the specific embodiment according to the present patent application, structure, feature and its effect, describe in detail as after.
In the description below, special characteristic, structure or feature in one or more embodiments can be combined by any suitable form.
A kind of scroll compressor thermomechanical components, including dynamic vortex part 1 (see Fig. 1, Fig. 2) and quiet scroll 2 (see Fig. 3, Fig. 4)；
Generally for conventional scroll compressor, the dynamic vortex part 1 is orbiter, and the quiet scroll 2 is
Fixed scroll.The dynamic vortex part 1 and the quiet scroll 2 are equipped with, to form compression chamber between, in compression
When machine runs, the dynamic vortex part 1 it is driven and along certain track translation, coordinate according to the gap for designing with quiet scroll 2,
Relative revolution motion is formed, so as to form the compression chamber of the continuous mechanical periodicity of volume, refrigerant gas can be in this kind of compression chamber
Air-breathing, compression and exhaust process are completed, so as to realize the purpose of compressed gas.
The dynamic vortex part 1 includes the first main body 11, and the quiet scroll 2 includes the second main body 21；Define described first
The surface relative with second main body 21 is first surface in main body 11, with first main body 11 in second main body 21
Relative surface is second surface；Ceramics are formed by differential arc oxidation treatment at the first surface, and/or the second surface
Layer 3, to reduce the service wear of the dynamic vortex part 1 and the quiet scroll 2.Fig. 1, Fig. 2 are shown with the ceramic layer 3
The dynamic vortex part 1 structural representation.
The ceramic layer 3 is formed at least one in the first surface and the second surface so that in compressor work
During work, first main body 11 and second main body 21 are not directly contacted with, and can prevent and are made up of same material
First main body 11 and the phase mutual friction of second main body 21 cause adhesive wear, even occur occlusion failure problem.
And, it is often more important that, it is very fine and close to process the structure of the ceramic layer 3 for obtaining by differential arc oxidation, with high rigidity and
Good wearability, advantageously reduces the abrasion that the dynamic vortex part 1 and the phase mutual friction of the quiet scroll 2 are produced, effectively drop
Low abrasion speed, reduces wear extent, so as to ensure that the dynamic vortex part 1 and the quiet scroll 2 can be protected in long-term work
Hold precise match, it is to avoid quality of fit is deteriorated with component wear due to compressor assembly structure, the compression intracavity gas for causing
The problem of leakage.Meanwhile, the anti-wear performance of improvement can also prevent the ceramic layer 3 be worn through when compressor assembly works and
Expose matrix material, so as to avoid first main body 11 and the directly contact of the second main body 21 and recurring structure occlusion failure
Problem.
Additionally, the ceramic layer 3 obtained by differential arc oxidation processing mode, is by the first main body 11 and/or
Wearing layer on the matrix material of two main body 21 obtained by growth in situ, the combination ten of itself and the first main body 11 and/or the second main body 21
It is point firm, it is difficult to come off, thus in compressor operation, can avoid the occurrence of that ceramic layer 3 comes off, fragment enters compression chamber
Deng infringement compressor arrangement and the problem of operational reliability.
It is by institute it should be noted that carrying out differential arc oxidation treatment to the first surface and/or the second surface
State first surface and the second surface is surface that compressor can occur long-term phase mutual friction in the course of the work.To described
One surface and the second surface carry out selecting a treatment, advantageously reduce production cost.But this does not represent and processes differential arc oxidation
Position be confined at the first surface and/or the second surface.More specifically, in actual production manufacturing process,
Can in first main body 11 including the first surface greater area of surface (such as described first main body 11 it is whole
Individual surface), and/or second main body 21 on include the second surface greater area of surface (for example it is described second master
The whole surface of body 21) carry out differential arc oxidation treatment, with simplify differential arc oxidation treatment operating procedure, improve production efficiency, and
Improve the planarization and aesthetic property on the dynamic vortex part 1 and the surface of quiet scroll 2.
Used as a kind of preferably implementation method, first main body 11 and second main body 21 are by aluminum alloy materials system
Into the constituent of the aluminum alloy materials is included (by weight percentage)：9-14%Si, 0.5-3%Cu, Mg≤1%, Fe
＞ 1%, Zn≤0.8%, Ni≤0.5%, remaining is Al；The ceramic layer 3 is al oxide layer.Aluminum alloy materials density compared with
It is small, and with good intensity and toughness, manufacturing first main body 11 and second main body 21 using aluminum alloy materials has
Energy ezpenditure during beneficial to reduction compressor operation, meets the environmental requirement of energy-saving and emission-reduction.In above-mentioned preferably implementation method,
There is good manufacture and processing characteristics with the aluminum alloy materials for preferably constituting composition, using casting or can forge
Mode be obtained first main body 11 and second main body 21, and obtain precision size by the aftertreatment technology such as finishing
Part, advantageously reduce manufacture processing cost using the aluminum alloy materials, improve production efficiency, while obtaining intensity and tough
The aspects such as property are satisfied by the parts of scroll compressor requirement.The ceramic layer 3 is to be reacted by differential arc oxidation, and oxidation is described
Aluminum alloy materials formed al oxide layer, its in addition to the above various premium properties, also with high temperature resistant, matter
Measure the characteristic such as light.
Used as a kind of preferably implementation method, the thickness of the ceramic layer 3 is 5-30 μm (see h is marked in Fig. 2), further
Preferably, the thickness of the ceramic layer 3 is 10-20 μm, with each side factor such as combination weight, mechanical performance, production cost, is obtained
There must be the ceramic layer 3 of good combination property.The anti-wear performance of improvement causes that the design thickness of the ceramic layer 3 reduces,
Be conducive to improving manufacture efficiency, reduce production cost, reduce pts wt, extension device service life.
Used as a kind of preferably implementation method, the section vickers microhardness of the ceramic layer 3 is not less than 900HV.It is described
The hardness of ceramic layer 3 is higher, is prevented from the ceramic layer 3 and is subject to scratch breakage in assembling and the course of work.
Used as a kind of preferably implementation method, the surface roughness Ra of the ceramic layer 3 is not more than 1 μm.The ceramic layer 3
Surface it is smooth, roughness is low, the rubbing when initial stage between the dynamic vortex part 1 and the quiet scroll 2 of advantageously reducing coordinates
Coefficient is wiped, running-in time is reduced.And do not have larger-size hard particles at the surface of ceramic layer 3, thus will not be in institute
Stating dynamic vortex part 1 and the quiet scroll 2 carries out producing Local Instantaneous high temperature when initial stage cooperation, it is to avoid refrigerator oil occur
The rotten problem of carbonization, it is ensured that compressor operating reliability.
Specifically, the good surface quality of the ceramic layer 3 can be obtained in several ways, for example, by adjustment
The reaction condition of differential arc oxidation reaction, so that the ceramic layer 3 that differential arc oxidation reaction is produced has no more than 1 μm of table
Surface roughness, or, sequent surface treatment operation is carried out by reacting the ceramic layer 3 for producing for differential arc oxidation, so that
Further improve the surface quality of the ceramic layer 3, sequent surface treatment operation described herein can have various, for example, can be
Polishing, polishing thickness is preferably 2-5 μm.Or, as a kind of preferably implementation method, can be in the ceramic layer 3
Surface sets lubricating layer 4, and the surface roughness Ra of the lubricating layer 4 is not more than 1 μm, with improve the dynamic vortex part 1 and/
Or the surface quality of the quiet scroll 2.Preferably, the thickness of the lubricating layer 4 is 5-15 μm (see l is marked in Fig. 1).It is described
The material of lubricating layer 4 can be selected according to prior art, it is preferable that the lubricating layer 4 is silicone layer, polytetrafluoroethylene (PTFE)
Layer or layer of molybdenum-disulfide in any one.The silicone layer, polytetrafluoroethylene floor, layer of molybdenum-disulfide have good lubrication
Performance and chemical inertness, and have a good tolerance for hot conditions, structure, stable in properties, service life is more long.
As shown in figure 5, the invention further relates to a kind of scroll compressor, including described scroll compressor thermomechanical components.
The invention further relates to a kind of manufacture method of described scroll compressor thermomechanical components, comprise the following steps：
The second surface of first surface, and/or second main body 21 to first main body 11 carries out differential arc oxidation
Treatment, makes to form the ceramic layer 3 at the first surface, and/or at the second surface.
More specifically, the first preferred embodiment of the manufacture method is：
Oil removal treatment is carried out to pending first main body 11 and second main body 21, water-filling is entered to the two afterwards
Wash, dry；Oil removal treatment and washing drying operation are conducive to obtaining cleaner surface before oxidation reaction is carried out, so as to keep away
Exempt from the impurity at first main body 11 and the surface of the second main body 21 to participate in oxidation reaction, reduce the ceramic layer of generation
3 quality；
First main body 11 and second main body 21 after by drying are placed in the differential arc oxidation groove for filling electrolyte,
The constituent of the electrolyte includes：Phosphate 10g/L, wolframic acid 2g/L, NaOH 0.2g/L, EDETATE SODIUM 1.5g/L,
The temperature of the electrolyte is 20 DEG C；
First main body 11 and second main body 21 being opposite in the electrolyte carry out differential arc oxidation treatment, place
The reaction condition of reason is：It is power pulse frequency 400Hz, pulse duty factor 10%, current density 2.5A/dm2, voltage 300V, micro-
Arc oxidization time is 10min；
After differential arc oxidation reaction terminates, first main body 11 and second main body 21 to gained carry out washing dry
It is dry, obtain final product the dynamic vortex part 1 and the quiet scroll 2 with the ceramic layer 3.Processed by this kind of preferred embodiment
To first main body 11 and the thickness of the ceramic layer 3 on the surface of the second main body 21 be about 9.2 μm, 3 sections of ceramic layer
Face vickers microhardness average value is 950HV.
Second preferred embodiment of the manufacture method is：
To simplify manufacturing process, saving manufacturing cost, this preferred embodiment only carries out differential arc oxidation to the dynamic vortex part 1
Treatment, i.e. oil removal treatment is carried out to pending first main body 11, is washed afterwards, dried；
First main body 11 after by drying is placed in the differential arc oxidation groove for filling electrolyte, the composition of the electrolyte
Composition includes：Phosphate 12g/L, wolframic acid 3.5g/L, NaOH 1g/L, EDETATE SODIUM 3g/L, the temperature of the electrolyte is
30℃；
First main body 11 being opposite in the electrolyte carries out differential arc oxidation treatment, and the reaction condition for the treatment of is：
Power pulse frequency 500Hz, pulse duty factor 15%, current density 4A/dm2, voltage 400V, differential arc oxidation time are 20min；
After differential arc oxidation reaction terminates, first main body 11 to gained carries out washing and drying, obtains final product with the pottery
The dynamic vortex part 1 of enamel coating 3.The ceramic layer on the surface of the first main body 11 for obtaining is processed by this kind of implementation method
3 thickness is about 15.6 μm, and the section vickers microhardness average value of ceramic layer 3 is 1086HV；
Ceramic layer 3 to gained in this preferred embodiment is processed by shot blasting that polishing thickness is 2-5 μm, to remove through micro-
The of a relatively loose weaker zone of the structure on the surface of ceramic layer 3 that arc oxidation processes are obtained, improves the light slippage on the surface of ceramic layer 3
Degree, makes its surface roughness Ra be not more than 1 μm, reduces the friction when dynamic vortex part 1 and 2 initial stage of the quiet scroll break-in
Coefficient, so that running-in time is reduced, and it is local to prevent the position that the dynamic vortex part 1 and the quiet scroll 2 are engaged from producing
TRANSIENT HIGH TEMPERATURE.
To illustrate the dynamic vortex by having the ceramic layer 3 obtained in the manufacture method described in this preferred embodiment
The anti-wear performance of part 1, the anti-wear performance to the dynamic vortex part 1 is tested, and is contrasted with other surface treatment methods,
That is, hard anodizing, chemical nickel plating treatment and differential arc oxidation treatment are carried out respectively to identical test specimen, in identical friction testing
Under the conditions of, as shown in fig. 6, the wear rate of the dynamic vortex part 1 obtained by this preferred embodiment is only 2.5%, it is significantly small
The wear rate of the test specimen processed in the wear rate (37.5%) of the test specimen processed by hard anodizing and by chemical nickel plating
(14.4%).
Experiment shows, using this preferred embodiment, can cause the abrasion of the quiet scroll 2 and the dynamic vortex part 1
Rate is substantially reduced, so as to significantly improve the reliability and service life of scroll compressor.
The third preferred embodiment of the manufacture method is：
To simplify manufacturing process, saving manufacturing cost, this preferred embodiment only carries out differential arc oxidation to the quiet scroll 2
Treatment, i.e. oil removal treatment is carried out to pending second main body 21, is washed afterwards, dried；
Second main body 21 after by drying is placed in the differential arc oxidation groove for filling electrolyte, the composition of the electrolyte
Composition includes：Phosphate 15g/L, wolframic acid 5g/L, NaOH 1.5g/L, EDETATE SODIUM 5g/L, the temperature of the electrolyte is
40℃；
Second main body 21 being opposite in the electrolyte carries out differential arc oxidation treatment, and the reaction condition for the treatment of is：
Power pulse frequency 700Hz, pulse duty factor 20%, current density 6.5A/dm2, voltage 500V, differential arc oxidation time is
30min；
After differential arc oxidation reaction terminates, to treatment after second main body 21 carry out washing and drying, obtain final product with described
The described quiet scroll 2 of ceramic layer 3.The ceramics on the surface of the second main body 21 for obtaining are processed by this kind of implementation method
The thickness of layer 3 is about 24.3 μm, and the section vickers microhardness average value of ceramic layer 3 is 1265HV.
Further to improve the surface property by the described quiet scroll 2 after differential arc oxidation treatment, this preferred embodiment
The material for forming the lubricating layer 4 is coated on the surface of the ceramic layer 3, and makes the profit by the way of baking-curing
Slip layer 4 is firmly secured to the surface of the ceramic layer 3, and specifically, the lubricating layer 4 can be silicone layer, polytetrafluoroethylene (PTFE)
Any one in layer or layer of molybdenum-disulfide, the surface roughness of the lubricating layer 4 is not more than 1 μm, and thickness is 5-15 μm.
It should be noted that for the part compressor assembly, when the dynamic vortex part 1 and the quiet scroll 2 are equal
By differential arc oxidation process obtain the ceramic layer 3 when, can only the dynamic vortex part 1 and the quiet scroll 2 wherein it
One surface of the ceramic layer 3 prepares lubricating layer 4, can have while the effect of coefficient of friction of reduction initial stage friction is reached
Beneficial to cost-effective.
The above preferred embodiment of the manufacture method of the scroll compressor thermomechanical components is simple to operate, process stabilizing reliability,
Equipment cost is relatively low, it is easy to operate, and reaction can be carried out at normal temperatures, and need not carry out follow-up pickling or alkali cleaning operation, and energy disappears
Consumption is less, and quantity of wastewater effluent is smaller, and the reagent for using is environment-friendly type reagent, meets environment protection emission requirement, is conducive to energy-conservation
Environmental protection.It should be noted that the protection domain that preferred embodiment above is not intended to limit the invention, in one or more embodiments
Special characteristic, structure or feature can combine by any suitable form.
Operation principle of the invention and preferred embodiment is described below：
The technical way that uses of the present invention and the technique effect of acquirement for：
1. by one of in the dynamic and static scroll in scroll compressor or the whole or local surfaces of the two are done
Differential arc oxidation treatment, forms ceramic layer 3, and the wearability of the ceramic layer 3 is splendid, can greatly reduce parts depreciation amount and gradually increases and lead
Cause dynamic and static scroll quality of fit to deviate preset value, and cause the problem of compressed gas leakage, lift the property of integrating compressor
Energy；While the minimum service life for extending scroll plate of wear extent of coating, and then the use of whole compressor can be substantially improved
Life-span；
2. avoiding compressor long-term work causes ceramic layer 3 worn out, the aluminium base for exposing and same type aluminium alloy conduct
Adhesive wear is produced when friction is with pair, dynamic and static scroll is killed the phenomenon for ultimately resulting in whole machine failure；
3. dynamic and static scroll surface abrasion amount is greatly reduced, the reliability of compressor is drastically increased；
4. coefficient of friction when reducing the surface of ceramic layer 3 with scroll plate break-in in the early stage, throws when by differential arc oxidization surface
Light or surface coat one layer of lubricant coating when, can further reduce the friction system of the initial stage break-in between dynamic and static scroll
Number, it is to avoid produce Local Instantaneous high temperature so that refrigerator oil occurs rotten and has a strong impact on showing for compressor performance and reliability
As；
5. micro-arc oxidation process it is simple, efficiently, energy-conservation, reduce pollution.
A preferred embodiment of the present invention is：
The characteristics of screw compressor of the invention is to enter the part or all of surface of any one in dynamic and static scroll
Row differential arc oxidation treatment, the surface after treatment can again be polished or coat one layer of lubricant coating, with reduction initial stage break-in
Time, reduce initial stage break-in when coefficient of friction, avoid refrigerator oil go bad, reduce compressed gas leakage, improve pressure
Contracting machine performance simultaneously greatly reduces the wear rate of scroll plate, improves the service life of compressor.
As shown in figure 5, by taking automobile-used scroll compressor as an example, the scroll compressor includes case top lid 5, quiet vortex
Part 2, compression chamber, dynamic vortex part 1, housing lower cover 6, upper bracket 7, bent axle 8.
To be placed in after washing and drying in differential arc oxidation groove after dynamic vortex part 1 and/or the oil removing of quiet scroll 2, through the differential of the arc
Resulting fine and close ceramic layer 3 has ultrahigh hardness and is to grow on base material in the original location after oxidation, with excellent resistance to
Mill property and good roughness.The constituent of the electrolyte of differential arc oxidation includes phosphate 10-15g/L, wolframic acid 2-5g/L, hydrogen
Sodium oxide molybdena 0.2-1.5g/L, EDETATE SODIUM 1.5-5g/L.During differential arc oxidation：The pulse frequency 400-700HZ of power supply, pulse duration
It is 2.5-6.5A/dm2 than 10-20%, current density, voltage is 300-500V, and electrolyte temperature is 20-40 DEG C, differential arc oxidation
Time is 10-30min.Workpiece is washed and dried by differential arc oxidation after terminating.
The material of first main body 11 and second main body 21 uses forging or cast aluminium alloy gold, the aluminium alloy
Constituent includes (being calculated in mass percent)：Si:9-14%, Cu:0.5-3%, Mg are not more than 1%, Fe more than 1%, Zn not
0.5% is not more than more than 0.8%, Ni, remaining is Al.To the two, the surface of one of them carries out differential arc oxidation treatment.
The thickness of the ceramic layer 3 obtained by the micro-arc oxidation process described in the scheme of the invention is 5-30 microns, preferably 10-
20 microns.
Dynamic vortex part 1 or quiet scroll 2 described in the scheme of the invention, the section vickers microhardness of ceramic layer 3 on surface
Not less than 900HV.
In the scheme of the invention, propose in addition the scroll 2 of dynamic vortex part 1 or quiet be polished again after differential arc oxidation or
Differential arc oxidization surface one layer of organosilicon of baking-curing or polytetrafluoroethylene (PTFE) (PTFE) or molybdenum bisuphide (MoS2) lubricant coating again
One kind, polishing thickness is optimal at 2-5 microns, and the thickness of the lubricating layer 4 of coating is 5-15 microns.
Dynamic vortex part 1 or quiet scroll 2 described in the scheme of the invention by micro-arc oxidation process or differential arc oxidation and after
The surface roughness Ra that treatment is obtained is not more than 1 micron.
To sum up, skilled addressee readily understands that, on the premise of not conflicting, above-mentioned each advantageous manner can from
By combination, superposition.
The above, better embodiment only of the invention not does any formal limitation to the present invention.It is any
People can draw other various forms of products under enlightenment of the invention, however, making any change in its shape or structure
Change, it is every with technical scheme identical or similar to the present application, it is within the scope of the present invention.
Claims (17)
1. a kind of scroll compressor thermomechanical components, it is characterised in that including dynamic vortex part (1) and quiet scroll (2)；
The dynamic vortex part (1) includes the first main body (11), and the quiet scroll (2) includes the second main body (21)；Definition is described
In first main body (11) surface relative with second main body (21) be first surface, on second main body (21) with it is described
The relative surface of first main body (11) is second surface；
Ceramic layer (3) is formed by differential arc oxidation treatment at the first surface, and/or the second surface, it is described to reduce
The service wear of dynamic vortex part (1) and the quiet scroll (2).
2. scroll compressor thermomechanical components according to claim 1, it is characterised in that
First main body (11) and second main body (21) are made by aluminum alloy materials, the composition of the aluminum alloy materials
Composition is included (by weight percentage)：9-14%Si, 0.5-3%Cu, Mg≤1%, Fe ＞ 1%, Zn≤0.8%, Ni≤
0.5%, remaining is Al；
The ceramic layer (3) is al oxide layer.
3. scroll compressor thermomechanical components according to claim 1 and 2, it is characterised in that the thickness of the ceramic layer (3) is
5-30μm。
4. scroll compressor thermomechanical components according to claim 3, it is characterised in that the thickness of the ceramic layer (3) is 10-
20μm。
5. scroll compressor thermomechanical components according to claim any one of 1-4, it is characterised in that the ceramic layer (3)
Section vickers microhardness is not less than 900HV.
6. scroll compressor thermomechanical components according to claim any one of 1-5, it is characterised in that the ceramic layer (3)
Surface roughness is not more than 1 μm.
7. scroll compressor thermomechanical components according to claim 6, it is characterised in that the surface of the ceramic layer (3) is passed through
Polishing, polishing thickness is 2-5 μm.
8. scroll compressor thermomechanical components according to claim any one of 1-7, it is characterised in that the ceramic layer (3)
Surface is provided with lubricating layer (4), and the surface roughness of the lubricating layer (4) is not more than 1 μm.
9. scroll compressor thermomechanical components according to claim 8, it is characterised in that the thickness of the lubricating layer (4) is 5-
15μm。
10. scroll compressor thermomechanical components according to claim 8 or claim 9, it is characterised in that the lubricating layer (4) is organic
One kind in silicon layer, polytetrafluoroethylene floor or layer of molybdenum-disulfide.
11. a kind of scroll compressors, it is characterised in that including the scroll compressor unit described in claim any one of 1-10
Part.
The manufacture method of the scroll compressor thermomechanical components described in a kind of 12. any one of claim 1-10, it is characterised in that including
Following steps：
The second surface of first surface, and/or second main body (21) to first main body (11) carries out differential arc oxidation
Treatment, makes to form the ceramic layer (3) at the first surface, and/or at the second surface.
The manufacture method of 13. scroll compressor thermomechanical components according to claim 12, it is characterised in that by the described first master
Body (11), and/or second main body (21) are placed in and differential arc oxidation treatment are carried out in electrolyte, the constituent of the electrolyte
Including：
Phosphate 10-15g/L, wolframic acid 2-5g/L, NaOH 0.2-1.5g/L, EDETATE SODIUM 1.5-5g/L.
The manufacture method of 14. scroll compressor thermomechanical components according to claim 13, it is characterised in that carry out differential arc oxidation
The reaction condition for the treatment of is：
Power pulse frequency 400-700Hz, pulse duty factor 10-20%, current density 2.5-6.5A/dm2, voltage 300-
500V, differential arc oxidation time are 10-30min, and the temperature of the electrolyte for being used is 20-40 DEG C.
The manufacture method of 15. scroll compressor thermomechanical components according to claim any one of 12-14, it is characterised in that also
Comprise the following steps：
The ceramic layer (3) is polished, the surface roughness Ra of the ceramic layer (3) after polishing is not more than 1 μm.
The manufacture method of 16. scroll compressor thermomechanical components according to claim 15, it is characterised in that to the ceramic layer
(3) polishing thickness being polished is 2-5 μm.
The manufacture method of 17. scroll compressor thermomechanical components according to claim any one of 12-16, it is characterised in that when
During including the lubricating layer (4), the manufacture method of the scroll compressor thermomechanical components is further comprising the steps of：
The lubricating layer (4) is formed in the surface baking-curing of the ceramic layer (3)；The lubricating layer (4) is silicone layer, gathers
One kind in tetrafluoroethene layer or layer of molybdenum-disulfide；And the surface roughness of the lubricating layer (4) is not more than 1 μm, thickness is
5-15μm。
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| CN106191564A (en) * | 2016-08-30 | 2016-12-07 | 福建省邦尚环保科技有限公司 | House ornamentation dark DE Specular Lighting pool aluminium alloy and preparation technology thereof |
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| CN111279016A (en) * | 2017-10-26 | 2020-06-12 | 翰昂汽车零部件有限公司 | Method of manufacturing scroll compressor and scroll compressor manufactured thereby |
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