CN1028381C - Scroll-type compressor, scroll member and method and apparatus for macerating-plating thereof - Google Patents

Scroll-type compressor, scroll member and method and apparatus for macerating-plating thereof Download PDF

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CN1028381C
CN1028381C CN92102140A CN92102140A CN1028381C CN 1028381 C CN1028381 C CN 1028381C CN 92102140 A CN92102140 A CN 92102140A CN 92102140 A CN92102140 A CN 92102140A CN 1028381 C CN1028381 C CN 1028381C
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mentioned
particulate
plating
scroll
bath
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CN1065907A (en
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田村由纪子
远藤喜重
山田俊宏
饭塚董
阿部信雄
池田和雄
冈本让治
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Hitachi Ltd
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Hitachi Ltd
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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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates

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  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemically Coating (AREA)
  • Rotary Pumps (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

The invention relates to a volute compressor. The immersion plating method and position of the volute component is to lay a particle composite electroless nickel-phosphorus clad layer and an electroless nickel-phosphorus clad layer laid there on at least one surface of the rotary volute component formed by aluminum product and fixed volute component. According to the invention, because the clad layer particle dose not fall off, the volute wearing resistance is improved. The invention could obtain a volute compressor with both tightness and wearing resistance. By the immersion plating in the invention, the surface of the volute component could be easily formed with a double-layer supersurface film consisting of particle composite layer and particle non-composite layer.

Description

Scroll-type compressor, scroll member and method and apparatus for macerating-plating thereof
The present invention is relevant with scroll-type compressor, specially refer to the rotation volute that is equipped with aluminum and fixedly volute scroll-type compressor with and the rotation volute and the fixing surface processing device of volute.
In recent years, in the scroll-type compressor field,,, adopt the little aluminium of proportion in order to reduce the centrifugal force of rotation volute as much as possible along with the rotation speed up of rotation volute., can produce wear resistance aspect problem on the aluminium.In order to address this problem, various surface treatment methods have been developed.
In the scroll-type compressor in the past, adopt this quadrat method: will rotate volute and fixedly one of them of volute use the aluminium manufacturing, another is a cast iron, applies surface treatment at this aluminium material surface.For example, the spy opens clear 62-199982 communique and has put down in writing to adopt on rotation volute surface and impose non-electrolytic nickel-boron method of coating; The spy open clear 64-80785 communique put down in writing the rotation volute or fixedly volute surface form the method for the plated film that comprises elements such as a certain amount of nickel, tungsten.
In addition, as will rotate volute, fixedly the volute both sides all adopt the example of aluminium, in fact open flat 3-99801 communique and put down in writing a scroll-type fluid machine, it is in the rotation volute or fixedly one of them side's of volute scroll wraps and the inner face of end plate apply non-electrolytic nickel-phosphorus coating or impose aluminium oxide and the non-electrolytic nickel-phosphorus coating of the compound dispersion of hard particles that silicon carbide (following writing Sic) is; Te Kaiping 2-125988 communique discloses this quadrat method: in the rotation volute or fixedly carry out hard anodizing on a wherein side's of volute the surface and handle, carry out zinc-plated processing on another surface.
The spy opens and discloses a kind of surface processing device among the clear 61-133380, its have stream manage the groove 1 of liquid, driving mechanism 4 everywhere, processed retaining mechanism that remains in the groove 1.
At this, in order to deepen the understanding of the present invention, the structure of scroll-type compressor (with reference to Figure 11) once is described generally, this example is a closed type.
Bottom configuration compressor 32 in the seal container 31, top is provided with motor 33.Compressor 32 comprises that spiral wrap 34b erects and is located at dull and stereotyped 34a and goes up the rotation volute 34 that forms and spiral wrap 35b and erect and be located at dull and stereotyped 35a and go up, be fixed in simultaneously the fixedly volute 35 on the flange 36.Two mutual interlocks of scrollwork 34b, 35b.The lower end that forms the crankshaft 37 of one with the turning axle of motor 33 embeds among the tubular wheel hub 34c that is based in above the rotation volute 34.By the revolution of crankshaft 37, wheel hub 34c rotates in the chamber 38 of flange 36, and rotation volute 34 is carried out rotation motion.Rotation scrollwork 34b and fixed scroll 35b mutually between point of contact move, thereby gas is inhaled into by suction pipe 39, this gas is compressed to the inside from the helical outer side chamber.Compressed gas is from being discharged to the outside at the fixing central formed exhaust port 35c of volute 35.The gas of discharging through path (not have diagram) enter the confined chamber 31 on the top of motor 33 ', then by outside discharge tube (not illustrating) the arrival machine.That is, in scroll-type compressor, rotation volute 34 and fixedly two scrollwork 34b, 35b and the minimizing of the formed confined chamber volume of dull and stereotyped 34a, 35a outside-in of volute 35, thereby air is compressed the pressure rising.At this moment, seal in the end of dull and stereotyped 34a, 35a and scrollwork 34b, 35b.
In above-mentioned prior art, when one of volute adopts aluminium, its surface is imposed surface treatment, another turbine is under the assembled state of cast iron, though its slip surface wear resistance is good, has lightweight aspect problem.
In addition, all make occasion, give surface treatment on one of must be at least therein, reaching existing problems aspect the cost degradation quantitatively with aluminium two volutes.Especially apply the particle combining surface and handle occasion, the hard particles that is positioned on the coating surface is peeled off, and this particle plays the lapping paste effect, exists to make the other side even carry out surface-treated face itself to produce wear problems.
The present invention puts forward in view of the existing problem of above-mentioned prior art.The object of the invention is to be reduced to the surface treatment cost that improves wear resistance, this with the aluminium manufacturing so that rotation volute and be necessary during the volute lightweight fixedly.
Another object of the present invention be at least to the rotation volute of aluminium manufacturing and fixedly the slip surface of volute carry out surface treatment so that its wear resistance, running-in have both, so, its performance is improved needn't improving.
Another purpose of the present invention provides a kind of plater, this device be fit to the rotation volute and fixedly the surface of volute do surface treatment that wear resistance, running-in have both or the surface treatment that possesses wear resistance.
Above-mentioned problem by the rotation volute and fixedly volute impose the particulate composite deposite on one of them and reach, the hardness particulate of this coating surface has can be from the structure of surface lifting.
Structure as particulate can not peeled off from coating surface then is provided with the not compound non-electrolytic nickel-phosphorus coating of particulate on the compound non-electrolytic nickel of particulate-phosphorus coating.
Having the coating surface particulate can be not by carrying out immersion plating in the plating bath that is being mixed with earlier particulate during applying the coating process, carrying out immersion plating then and obtain in the plating bath that is not mixed with particulate from the compound electroless coating layer of the particulate of surface lifting structure.
This immersion plating is handled and can be carried out in same bath trough, also can with particulate composite plating bath groove and particulate not the composite plating bath groove carry out.
Above-mentioned problem reaches by being provided with thickness coating, and this does not have the compound thickness coating of particulate to be located on the wear resistance particulate composite deposite on aluminium material volute surface.In addition, when forming particulate THIN COMPOSITE coating, use the following amicron of particle diameter 0.1 μ m as the particulate that is compounded in non-electrolytic nickel-phosphor bath.Particulate preferably adopts hardness of matter, for example silicon carbide, silica, aluminium oxide, zirconia and diamond etc.
According to scroll-type compressor of the present invention, be meshing with each other at rotation scroll member that forms scroll wraps on the end plate and the same fixedly scroll member that on end plate, forms helical vortex shape scrollwork, by preventing that free-wheeling system from stoping rotation that above-mentioned rotation volute is rotated, above-mentioned rotation volute and fixedly volute form by aluminium, on its two side or a side's surface, form and make the compound non-electrolytic nickel-phosphorus coating of particulate; It is characterized in that: the compound non-electrolytic nickel of above-mentioned particulate-phosphorus coating is enclosed its inside with particulate, and its surface is made of the layer that nickel-phosphorus is only arranged.
According to another kind of scroll-type compressor of the present invention, be meshing with each other at rotation scroll member that forms scroll wraps on the end plate and the same fixedly scroll member that on end plate, forms scroll wraps, by preventing that free-wheeling system from stoping rotation that above-mentioned rotation volute is rotated, above-mentioned rotation volute and fixedly volute form by aluminium, on its two side or a side's surface, form and make the compound non-electrolytic nickel-phosphorus coating of particulate; It is characterized in that: on the compound non-electrolytic nickel of above-mentioned particulate-phosphorus coating, form non-electrolytic nickel-phosphorus coating.
According to another scroll-type compressor of the present invention, be meshing with each other at rotation scroll member that forms scroll wraps on the end plate and the same fixedly scroll member that on end plate, forms scroll wraps, by preventing that free-wheeling system from stoping rotation that above-mentioned rotation volute is rotated, above-mentioned rotation volute and fixedly volute form by aluminium, on its two side or a side's slip surface, form and make the compound non-electrolytic nickel-phosphorus coating of particulate; It is characterized in that: the compound non-electrolytic nickel of above-mentioned particulate-phosphorus coating is enclosed its inside with particulate, and its surface is made of the layer that nickel-phosphorus is only arranged.
According to the immersion plating method of scroll member of the present invention, form coating on the scroll member surface; It is characterized in that: in being full of the bath that makes the compound non-electrolytic nickel-phosphor bath of particulate, carry out immersion plating after, in being full of the bath of non-electrolytic nickel-phosphor bath, carry out immersion plating again.
According to the immersion plating method of another kind of scroll member of the present invention, form coating on the scroll member surface; It is characterized in that: in being full of the bath that makes the compound non-electrolytic nickel-phosphor bath of particulate, after above-mentioned particulate being swum in plating bath, carry out immersion plating, make above-mentioned particulate deposits, in the plating bath on bath top, carry out immersion plating again in the bath bottom.
According to the immersion plating method of another scroll member of the present invention, form coating on the scroll member surface; It is characterized in that: in being full of the bath that makes the compound non-electrolytic nickel-phosphor bath of particulate, after above-mentioned particulate being swum in plating bath, carry out immersion plating, make above-mentioned plating bath cycle through filter, remove above-mentioned particulate, carry out immersion plating again.
According to immersion plating device of the present invention, possess the stirring mechanism that is full of the groove that makes the compound plating bath of particulate, stirs above-mentioned plating bath, make plating piece remain in the plating bath and make its rotating swirl gear; It is characterized in that: above-mentioned swirl gear comprises first swirl gear and second swirl gear, first swirl gear is provided with first turning axle, make plating piece carry rotation on its front end, second swirl gear is provided with second turning axle that closes with above-mentioned first turning axle orthogonal system, makes above-mentioned first turning axle roughly be orthogonal ground and turns round around second turning axle.
According to another kind of immersion plating device of the present invention, possess the stirring mechanism that is full of the groove that makes the compound plating bath of particulate, stirs above-mentioned plating bath, make and remained in the plating bath by the plating part and make its rotating swirl gear; It is characterized in that: be provided with to the above-mentioned groove of major general be separated into be full of standard plating bath zone and be full of make particulate be compounded in standard plating bath zone dividing plate, be configured in the mobile mechanism that above-mentioned plural number zone is stirred the stirring mechanism of plating bath, above-mentioned swirl gear is immersed in above-mentioned plural number zone is moved; Above-mentioned swirl gear comprises first swirl gear and second swirl gear, first swirl gear is provided with first turning axle, make plating piece carry rotation on its front end, second swirl gear is provided with second turning axle that closes with above-mentioned first turning axle orthogonal system, makes above-mentioned first turning axle roughly be orthogonal ground and turns round around second turning axle.
According to another immersion plating device of the present invention, be provided with the groove that is full of plating bath, it is characterized in that: above-mentioned flute profile stream is circlewise taken in plating bath, this device comprises: make in the above-mentioned groove plating bath along the above-mentioned ring-type stream circuit mechanism of backflowing, but intersect with above-mentioned stream at least one place of above-mentioned ring-type stream and the dividing plate of the switch that is provided with, intersect with above-mentioned stream and be configured in the downstream side of aforementioned barriers, and form between the aforementioned barriers particulate is compounded in particulate composite plating bath zone in the standard plating bath, the filter that only allows standard plating bath in the plating bath pass through, make by the plating part and remain on retaining mechanism in the plating bath, above-mentioned retaining mechanism is turned round on one side in plating bath, make on one side it along mobile mechanism that above-mentioned stream moves.
If the rotation volute and fixedly in the volute a certain side's surface, can not slide between the aluminium even then above-mentioned two volutes form with aluminium with non-electrolytic nickel-phosphorus coating because of there being plated film yet, do not worry taking place the burn-back of slip surface etc.
In addition, the corpuscle that hardness such as particulate, for example Sic are high is dispersed in the plated film, and these particulates that expose in coated surface are embedded in, are tethered in the plated film, thereby this particulate can not peel off and the lapping paste effect from coated surface, the coating slip surface with do not have the slip surface both sides' of coating wear resistance to be improved.
When the compound non-electrolytic nickel of the particulate that the present invention relates to-phosphorus plated film forms, at first in being mixed with the plating bath of particulate, impose electroless plating.Though the particulate that the plated film that this forms phase I is mixed in the plating bath is the form that is embedded in,, be mixed with on its surface from some particulate that exposes by coated surface only to the particulate that is various state of the particulate that sticks to the coated surface state.Then, on this state plated film, in the plating bath that is not mixed with particulate, impose electroless plating.In this second stage, not with new particulate, only with the metal of immersion plating, therefore, the particulate that exposes on the coated surface that the phase I forms is embedded in the plated film in the plated film.If make the second stage immersion plating time longer, then can make particulate imbed in the plated film fully; If the immersion plating time is shorter, then can make particulate be for example half state that is embedded in.
The particulate of resultant coated surface was tethered in coating after second stage immersion plating was finished, and was difficult to peel off.Thereby, from coated surface peel off, the particulate that becomes lapping paste with respect to slip surface tails off, the wearing and tearing on volute surface reduce.
The composite bed that makes the particulate with wear resistance is a skim, on it not composite particles the layer be a thick-layer, so, in the rotation volute with during the running in after fixedly volute is installed, even do not have the mutual sliding parts wearing and tearing of composite particles layer can not may wear to aluminium yet, can obtain suitable sealing effect.
At this moment, even certain side's serious wear reaches the particulate composite bed, but because the other side's serious wear after this, the aluminium surface also can be protected.This layer because of the sealing effect that obtains mutual sliding parts is exactly a what is called " running-in layer ".
Like this because of the free layer of wearing and tearing is the layer that does not have composite particles, thereby the dissociate phenomenon of grinding material effect of particulate can not take place.And, because the running-in bed thickness, thus needn't high-precision processing volute shape, by its lip-deep overcoat, be formed with the suitable shape of sealing effect.
Plater of the present invention is only for forming above-mentioned coating.When making the maintenance means rotation of supporting turbine part, make it around vertical axle revolution, thereby plating bath can be supplied with the Zone Full of the scroll member of being made up of depth structure, formation homogeneous coating.
In addition, owing to possess the filter and the dividing plate of the particulate that can remove the particulate composite plating bath, can form the particulate composite plating bath and the plating bath of composite particles not, thereby can form the coating of forming by double layer construction at an easy rate.
With reference to the accompanying drawings, further specify the present invention by description to the embodiment of the invention.Wherein,
Fig. 1 is the sectional drawing of expression embodiment's 1 coating situation;
Fig. 2 is the sectional drawing that has carried out the scroll member of coating processing of the present invention;
Fig. 3 is the oblique drawing of the plater of use among the embodiment 1;
Fig. 4 is the sectional drawing of expression embodiment's 2 coating situation;
Fig. 5, Fig. 6, Fig. 7 are the sectional drawings of the immersion plating device of the expression embodiment of the invention;
Fig. 8 is the explanatory drawing of immersion plating device of the present invention;
Fig. 9 is expression sliding test result's coordinate figure;
Figure 10 is the precedence diagram of the pre-treating technology of expression immersion plating;
Figure 11 is the structural drawing of known scroll-type compressor;
Figure 12 is its scrollwork figure.
Below, with reference to Fig. 1-Figure 10 embodiment is described.
At first, the immersion plating pre-treating technology as shown in figure 10.Immersion plating described later is all carried out after this pretreatment.AD-68F among the figure, AD-101, AD-301-3X are the reagent of C. Uyemura ﹠ Co Ltd's system.
The embodiment of the invention 1 as shown in Figure 1.Be illustrated in the section of the compound non-electrolytic nickel of Sic-phosphorus plated film 1 of the surface attachment of the aluminium 3 that forms volute among the figure, this plated film 1 contains Sic particulate 2, and the Sic particulate is dispersed in the plated film 1.
On metallic film 1, has the nickel-phosphorus coating 5 that does not contain Sic particulate 2.This coating 5 has the effect of the error of the machining accuracy that can compensate scroll member and assembly precision.That is, generally in scroll-type compressor, its performance be by the rotation volute and fixedly volute gap length about.In order to improve performance, be necessary high-precision processing and assembling so that the gap reduces, but bring very big difficulty thereupon.Thereby, be that the non-electrolytic nickel-phosphorus coating that will set the wear resistance shortcoming of thickness puts on the compound non-electrolytic nickel of Sic-phosphorus coating (below, coating all is meant electroless plating) now, during running, unnecessary nickel-phosphorus coating wearing and tearing, thickness reduces, and it is certain that the gap keeps.In other words, this coating is so-called running-in layer, plays a part sealing material.Thereby, can absorb the error of machining accuracy or assembly precision.
In addition, Fig. 1 has shown the Sic particulate fully by the topped state of nickel-phosphorus coating 5, if not having the nickel-phosphorus coating of compound sic particulate is skim, then Sic particulate 2 a part of exposing surfaces are the state in coating 1 and the coating 5 that is tethered in.
Fig. 2 is the sectional drawing that imposes the rotation volute of composite particles coating in the present embodiment.As shown in the figure, scroll member is formed by end plate 7 with the scrollwork 8 that these end plate 7 approximate vertical form, if from Fig. 2 top, except the part of end plate 7 belows, nearly all place all imposes coating, but also can only have sliding parts to impose coating with the other side's parts.
The compound nickel of above-mentioned the sort of Sic-phosphorus coating can be undertaken by following method.
Fig. 3 is that expression makes plated body 14 rotating mechanism in solution.This mechanism comprises linear drives axle 11, mobile substation 27, vertical direction rotary drive shaft 28, rotary motion mechanism 10, horizontal rotation live axle 29, horizontal axis of rotation 26, supporting means 25 and rotary motion mechanism 9 and constitutes.Wherein, linear drives axle 11 is for being configured in the mobile mechanism of groove 12 tops that are full of plating bath; Mobile substation 27 is driven by linear drives axle 11, moves in the horizontal direction; The vertical direction rotary drive shaft 28 of hollow is installed in the mobile substation 27 pivotally; Rotary motion mechanism 10 makes the vertical direction rotary drive shaft 28 that is installed in the mobile substation around this revolution; The axle center almost parallel that horizontal rotation drives association's axle 29 and rotary drive shaft 28 passes through the inside of vertical direction rotary drive shaft 28; Horizontal axis of rotation 26 is connected with horizontal rotation live axle 29 by umbrella gear, gives prominence to opening 30 approximate horizontal of the side by being located at vertical direction rotary drive shaft 28 outside at live axle 28; Support mechanism 25 is installed in the end of horizontal axis of rotation 26; Rotary motion mechanism 9 is arranged at the upper end portion of vertical direction rotary drive shaft 28, and the upper end portion of horizontal rotation live axle 29 is driven around this revolution.Vertical direction rotary drive shaft 28 is configured to its axle center and roughly is vertical, and the opening 30 of its lower side is also lower than the liquid level of plating bath.
Following such action of said mechanism.At first, by retaining mechanism 25, plated body 14 remains in the plating bath.Rotary motion mechanism 9 makes horizontal rotation live axle 29 single-revolutions, then by umbrella gear, and horizontal axis of rotation 26 revolutions, the plated body 14 that is supported by retaining mechanism 25 turns round around horizontal axis.Retaining mechanism 25 is supporting plated body 14, makes the central shaft of plated body 14 roughly consistent with the axle center of horizontal axis of rotation 26, and plated body 14 is around himself central shaft revolution.In addition, rotary motion mechanism 10 makes vertical direction rotary drive shaft 28 single-revolutions, and then horizontal axis of rotation 26 is on one side around himself axle center revolution, on one side along with the revolution of the opening 30 of vertical direction rotary drive shaft 28, around vertical axle revolution.
Revolution by above-mentioned two directions in the plating bath, plating bath reaches the movement direction of the particulate that swims in plating bath and the relativeness on plated body 14 surfaces can not rest on certain state, but changing, the difference up and down of the amount of plating of plated body 14 and the difference in the table disappear, and whole overlay coating and particulate homogeneous adhere to.And, making plated body 14 move left and right by linear drives axle 11, can make because of the different caused difference disappearances in the place of groove.Secondly, carry out immersion plating by moving in the plating bath that is not mixed with the Sic particulate, the Sic particulate that is mixed in various state of coated surface is embedded in nickel-phosphorus plated film.
By said mechanism, even the complicated form part resemble the volute also can obtain the homodisperse composite deposite of Sic particle.
By Fig. 4 embodiment 2 is described.Fig. 4 is the part sectioned view that comprises coating 1 and volute surface layer, and coating 1 makes the compound non-electrolytic nickel-phosphorus coating of Sic particulate for what form on the surface of the aluminium 3 that forms volute, impose non-electrolytic nickel-phosphorus coating 5 thereon.The part of removing scalping is identical with embodiment 1.In the present embodiment, make the thickness of the compound non-electrolytic nickel-phosphorus coating 1 of Sic particulate 2 be made as 2 μ m, the thickness of non-electrolytic nickel-phosphorus coating 5 is made as 15 μ m and forms.
In addition, the Sic particulate of using in the present embodiment 2 is very thin because of the coating 1 of compound this Sic particulate 2, is the following amicron of 0.1 μ m so use particle diameter, so that it evenly distributes in coating 1.In the present embodiment, because of the non-electrolytic nickel-phosphorus coating 5 as the running-in layer is thicker, thereby compare with embodiment 1, the machining accuracy of its absorption turbine and the effect of assembly precision error are bigger.
Embodiment 3 as shown in Figure 5.The device of immersion plating shown in the figure comprises hot water tank 17, be arranged on groove 12 in the hot water tank 17, groove 12 be separated into that the movable dividing plate 20 in first, second two zones, the plated body that is installed in groove 12 tops move back to the stirrer 19 that disposes respectively in rotation mechanism (identical with the device of Fig. 3 record, that omissions be described) 18, above-mentioned two zones and Thermomagnetic type stirrer 13 and formation.Fill with the nickel-phosphor bath 15 that is mixed with the Sic particulate in the first area, fill with the nickel-phosphor bath 16 that is not mixed with the Sic particulate in the second area.And the particle diameter of the Sic particulate that mixes in the present embodiment is 0.1 μ m degree, wishes to be to the maximum 1 μ m degree.
At first, plated body 14 is placed into the first area that the right side fills the plating bath 15 that is mixed with the Sic particulate, applies the Sic composite deposite.At this moment, plated body 14 turns round in liquid by plated body revolution mobile mechanism 18.On the one hand, plating bath is stirred by pyromagnetic stirrer 13 and stirrer 19.In this stage, formed the plated film that the even dispersion of Sic particulate is imbedded in nickel-phosphorus plated film.Behind the set time, movable dividing plate 20 is opened, and plated body 14 is shifted to the left side as quick as thought and is full of the second area that is not mixed with Sic particulate plating bath 16, imposes coating again.Shift to the stage of second area from the first area, on the coated surface that forms, be mixed with the various Sic particulate that exposes state of demonstration, from only some exposes particulate to only being the particulate that integral body is exposed state attached to coated surface from coated surface.At second area, because be not mixed with the Sic particulate in the plating bath, thereby formed the nickel-phosphorus plated film that does not contain the Sic particulate, as time passes, the Sic particulate that is various states that is mixed in coated surface when moving on to second area is embedded in nickel-phosphorus plated film gradually.And, all be electroless plating at first, second regional coating.
Embodiment 4 is illustrated in Fig. 6.The plated body that immersion plating device as shown in the figure comprises hot water tank 17, be arranged on groove 12 in the hot water tank 7, be installed in groove 12 tops moves back to rotation mechanism (identical with the device of Fig. 3 record, that omission be described) 18, be configured in the stirrer 19 of groove 12 bottoms and be arranged on the pyromagnetic stirrer 13 of bottom foreign side of groove 12 and formation.Plated body 14 is subjected to the Sic composite deposite in the plating bath 15 that is mixed with the Sic particulate.In the immersion plating, plated body 14 moves back to rotation mechanism (to put down in writing device identical with Fig. 3, and omission is described) 18 by plated body and turns round, and plating bath also is stirred.Behind the set time, plated body 14 revolutions are stirred with plating bath 15 and are stopped.The stirring one of plating bath 15 stops, the sedimentation because weigh of the Sic particle in the plating bath.Utilize this phenomenon, do not have the place of Sic particle on plating bath top, carry out the immersion plating (for the immersion plating that the Sic particle is imbedded) of second stage.
By this method, immersion plating can be carried out in same plating bath, and operation also is very easy in simple mechanism.
Embodiment 5 as shown in Figure 7, immersion plating device as shown in the figure comprises hot water tank 17, be configured in the groove 12 that is full of the compound nickel-phosphor bath 15 of Sic in the hot water tank 17, the mixer means that stirs above-mentioned plating bath is stirrer 19 and pyromagnetic stirrer 13 one by one, plated body 14 is remained in the plating bath, make its revolution, the plated body that moves moves back to rotation mechanism (to put down in writing device identical with Fig. 3, and omission is described) 18, the gateway is connected with groove 12, make plating bath circuit recycle pump 22, being installed in the pump entry side reclaims the filter 21 be included in the Sic particulate in the compound nickel-phosphor bath 15 of above-mentioned Sic and constitutes.
According to present embodiment, plated body 14 carries out earlier phase I immersion plating (containing the plating of Sic particulate) in being mixed with Sic particle liquid 15.Phase I immersion plating one finishes, and liquid 15 usefulness the pumps 22 that are mixed with the Sic particle are from the groove bottom extraction, by filter 21, remove the Sic particle after, carry out second stage immersion plating (not comprising the immersion plating of Sic particle).This method is embodiment 4 a improved type.Though equally with embodiment 4 in same solution, carry out immersion plating,, as mentioned above, owing to have the mechanism of removing the Sic particle fully in the solution, so can more reliably the Sic particle be imbedded in the coating.
As another example, embodiment 6 as shown in Figure 8.Immersion plating device as shown in the figure comprises the stream pool type groove 12 that formation ring-type stream is taken in plating bath, make in the groove plating bath along ring-type stream circuit recursive device (not diagram), but the dividing plate 20 of the switch that is installed with at three places at interval by setting on the ring-type stream, leave at the downstream side of one of dividing plate 20 and dividing plate 20 and to set arranged spaced, and 20 filters 21 that form the compound nickel of Sic-phosphor bath zone of dividing plate, plated body 14 being immersed in the plating bath on one side turns round, the plated body that on one side its contrary direction that flow along stream towards plating bath is moved moves back to rotation mechanism 24 and formation.The structure that plated body moves back to rotation mechanism 24 has with plated body and moves back to rotation mechanism 18 identical support mechanism, swirl gear, and plated body is moved along the ring-type stream.
Coating bath forms the sort of shape in flowing water pond in the present embodiment, Yi Bian make plated body 14 rotations, Yi Bian its contrary direction towards flow of solution is moved.And, movable dividing plate 20 is installed in coating bath, plated body 14 is on one side by in the groove that holds the nickel-phosphor bath that is mixed with the Sic particle, Yi Bian carry out phase I immersion plating.Then, shift in the groove that holds the solution that does not contain the Sic particle, carry out second stage immersion plating.By improving or the travelling speed of the plated body 14 that slows down, can make the thickness of coating of immersion plating reach the thickness of hope.This is to be suitable for mass-produced immersion plating device.
Use above the sort of method, impose the coating that does not contain the Sic particle on the Sic composite deposite, the Sic particle that is in coating surface is imbedded in the coating.
The result of the compound non-electrolytic nickel of Sic particle-phosphorus coating that Fig. 9 represents to form with method in the past (being in coating on the coated surface) and the sliding test of the compound non-electrolytic nickel of the Sic-phosphorus coating (shape as shown in Figure 1) of the device formation of representing with embodiment 3 with the resulting particulate of method in the past.In addition, immersion plating puts on the fixation test sheet.
Test conditions:
1. test film shape
(1) fixation test sheet (discoideus): diameter 37mm, thickness 12mm.
(2) turning test sheet (ring-type): external diameter 26mm, internal diameter 16mm, thickness 12mm.
2. sliding condition
(1) speed 3.14m/s
(2) loading 12.2kgf/cm 2
(3) lubricant oil: Fu Liangle F56
3. for the examination material
(1) fixation test sheet AHS(11%Si contains Al)
(2) turning test sheet AHS(11%Si contains Al)
As can be seen from Figure 9, the previous methods occasion, the face itself that coating is handled is not wearing and tearing almost, the other side are worn and torn.But in occasion of the present invention, both sides all have only considerably less wearing and tearing.
In the various embodiments described above, use the Sic particulate, but also can use the particulate beyond the Sic, as SiO as the particulate that is dispersed in the plated film 2, Al 2P 3, ZiO 2Be dispersed in particulate in the plating bath easily on oxide, diamond, high hardness metal or the like.In addition,, use nickel-phosphorus plated film in an embodiment, in addition, also can use the plated film of copper, chromium, tin etc. as the plated film of imbedding these particulates.
According to the present invention, be rotation scroll member that aluminium is formed and fixing one of them side of scroll member, impose the non-electrolytic nickel-phosphorus coating of composite particles in its surface and on this coating, impose non-electrolytic nickel-phosphorus coating and form, or the non-electrolytic nickel-phosphorus coating surface of composite particles is constituted and is formed by the layer for non-electrolytic nickel-phosphorus only, because the particulate of coating can not come off, thereby the wear resistance of scroll-type compressor is improved.In addition, by the thickening of the non-electrolytic nickel on the non-electrolytic nickel-phosphorus coating that will be located at composite particles-phosphorus coating, non-electrolytic nickel-phosphorus coating becomes the running-in layer, can make it become the scroll-type compressor that sealing and wear resistance have concurrently.The immersion plating device of the application of the invention can be at an easy rate forms on the scroll member surface by fine particle composite bed and the formed double-deck skin covering of the surface in composite particles sublayer not.

Claims (24)

1, a kind of scroll-type compressor, be meshing with each other at rotation scroll member that forms scroll wraps on the end plate and the same fixedly scroll member that on end plate, forms scroll wraps, by preventing that free-wheeling system from stoping rotation that above-mentioned rotation volute is rotated, above-mentioned rotation volute and fixedly volute form by aluminium, on its two side or a side's surface, form and make the compound non-electrolytic nickel-phosphorus coating of particulate; It is characterized in that: the compound non-electrolytic nickel of above-mentioned particulate-phosphorus coating is enclosed its inside with particulate, and its surface is made of the layer that nickel-phosphorus is only arranged.
2, a kind of scroll-type compressor, be meshing with each other at rotation scroll member that forms scroll wraps on the end plate and the same fixedly scroll member that on end plate, forms scroll wraps, by preventing that free-wheeling system from stoping rotation that above-mentioned rotation volute is rotated, above-mentioned rotation volute and fixedly volute form by aluminium, on its two side or a side's surface, form and make the compound non-electrolytic nickel-phosphorus coating of particulate; It is characterized in that: on the compound non-electrolytic nickel of above-mentioned particulate-phosphorus coating, form non-electrolytic nickel-phosphorus coating.
3, a kind of scroll-type compressor, be meshing with each other at rotation scroll member that forms scroll wraps on the end plate and the same fixedly scroll member that on end plate, forms scroll wraps, by preventing that free-wheeling system from stoping rotation that above-mentioned rotation volute is rotated, above-mentioned rotation volute and fixedly volute form by aluminium, on its two side or a side's slip surface, form and make the compound non-electrolytic nickel-phosphorus coating of particulate; It is characterized in that: the compound non-electrolytic nickel of above-mentioned particulate-phosphorus coating is enclosed its inside with particulate, and its surface is made of the layer that nickel-phosphorus is only arranged.
4, according to the scroll-type compressor described in the claim 2, it is characterized in that: above-mentioned rotation volute and fixedly two sides of volute or above-mentioned surface of the side are slidingsurfaces.
5, according to the scroll-type compressor described in the claim 2, it is characterized in that: compound non-electrolytic nickel-phosphorus coating is thick than above-mentioned particulate for the thickness of above-mentioned non-electrolytic nickel-phosphorus coating.
6, according to the scroll-type compressor described in the claim 4, it is characterized in that: compound non-electrolytic nickel-phosphorus coating is thick than above-mentioned particulate for the thickness of above-mentioned non-electrolytic nickel-phosphorus coating.
7, according to the scroll-type compressor described in the claim 1, it is characterized in that: above-mentioned particulate is made of a kind of in silicon carbide, silica, aluminium oxide, zirconia and the diamond.
8, according to the scroll-type compressor described in the claim 2, it is characterized in that: above-mentioned particulate is made of a kind of in silicon carbide, silica, aluminium oxide, zirconia and the diamond.
9, according to the scroll-type compressor described in the claim 3, it is characterized in that: above-mentioned particulate is made of a kind of in silicon carbide, silica, aluminium oxide, zirconia and the diamond.
10, according to the scroll-type compressor described in the claim 4, it is characterized in that: above-mentioned particulate is made of a kind of in silicon carbide, silica, aluminium oxide, zirconia and the diamond.
11, a kind of immersion plating method of scroll member forms coating on the scroll member surface; It is characterized in that: in being full of the bath that makes the compound non-electrolytic nickel-phosphor bath of particulate, carry out immersion plating after, in being full of the bath of non-electrolytic nickel-phosphor bath, carry out immersion plating again.
12, a kind of immersion plating method of scroll member forms coating on the scroll member surface; It is characterized in that: in being full of the bath that makes the compound non-electrolytic nickel-phosphor bath of particulate, after above-mentioned particulate being swum in plating bath, carry out immersion plating, make above-mentioned particulate deposits, in the plating bath on bath top, carry out immersion plating again in the bath bottom.
13, a kind of immersion plating method of scroll member forms coating on the scroll member surface; It is characterized in that: in being full of the bath that makes the compound non-electrolytic nickel-phosphor bath of particulate, after above-mentioned particulate being swum in plating bath, carry out immersion plating, make above-mentioned plating bath cycle through filter, remove above-mentioned particulate, carry out immersion plating again.
14, according to the immersion plating method of the scroll member described in the claim 11, it is characterized in that: during above-mentioned scroll member certain in immersion plating or the whole period be installed in the turning axle by above-mentioned scroll member and/or leave on the turning axle of above-mentioned scroll member and turn round.
15, according to the immersion plating method of the scroll member described in the claim 12, it is characterized in that: during above-mentioned scroll member certain in immersion plating or the whole period be installed in the turning axle by above-mentioned scroll member and/or leave on the turning axle of above-mentioned scroll member and turn round.
16, according to the immersion plating method of the scroll member described in the claim 13, it is characterized in that: during above-mentioned scroll member certain in immersion plating or the whole period be installed in the turning axle by above-mentioned scroll member and/or leave on the turning axle of above-mentioned scroll member and turn round.
17, a kind of immersion plating device possesses the stirring mechanism that is full of the groove that makes the compound plating bath of particulate, stirs above-mentioned plating bath, makes plating piece remain in the plating bath and makes its rotating swirl gear; It is characterized in that: above-mentioned swirl gear comprises first swirl gear and second swirl gear, first swirl gear is provided with first turning axle, make plating piece carry rotation on its front end, second swirl gear is provided with second turning axle that closes with above-mentioned first turning axle orthogonal system, makes above-mentioned first turning axle roughly be orthogonal ground and turns round around second turning axle.
18, according to the immersion plating device described in the claim 17, it is characterized in that: possess the gateway and be connected, make plating bath circuit recycle pump and be installed in the filter that above-mentioned pump entry side reclaims above-mentioned particulate with above-mentioned groove.
19, a kind of immersion plating device possesses the stirring mechanism that is full of the groove that makes the compound plating bath of particulate, stirs above-mentioned plating bath, makes and remained in the plating bath by the plating part and make its rotating swirl gear; It is characterized in that: be provided with to the above-mentioned groove of major general be separated into be full of standard plating bath zone and be full of make particulate be compounded in the plating bath zone in the standard plating bath dividing plate, be configured in the mobile mechanism that above-mentioned plural number zone is stirred the stirring mechanism of plating bath, above-mentioned swirl gear is immersed in above-mentioned plural number zone is moved;
Above-mentioned swirl gear comprises first swirl gear and second swirl gear, first swirl gear is provided with first turning axle, make plating piece carry rotation on its front end, second swirl gear is provided with second turning axle that closes with above-mentioned first turning axle orthogonal system, makes above-mentioned first turning axle roughly be orthogonal ground and turns round around second turning axle.
20, according to the immersion plating method of the scroll member described in the claim 16, it is characterized in that: above-mentioned groove is configured in the hot water tank.
21, according to the immersion plating device described in the claim 17, it is characterized in that: above-mentioned groove is configured in the hot water tank.
22, according to the immersion plating device described in the claim 18, it is characterized in that: above-mentioned groove is configured in the hot water tank.
23, according to the immersion plating device in the claim 19, it is characterized in that: above-mentioned groove is configured in the hot water tank.
24, a kind of immersion plating device, be provided with the groove that is full of plating bath, it is characterized in that: above-mentioned flute profile stream is circlewise taken in plating bath, this device comprises: make in the above-mentioned groove plating bath along the above-mentioned ring-type stream circuit mechanism of backflowing, but intersect with above-mentioned stream at least one place of above-mentioned ring-type stream and the dividing plate of the shape that is provided with, intersect with above-mentioned stream and be configured in the downstream side of aforementioned barriers, and form between the aforementioned barriers particulate is compounded in particulate composite plating bath zone in the standard plating bath, the filter that only allows standard plating bath in the plating bath pass through, make by the plating part and remain on retaining mechanism in the plating bath, above-mentioned retaining mechanism is turned round on one side in plating bath, make on one side it along mobile mechanism that above-mentioned stream moves.
CN92102140A 1991-03-29 1992-03-28 Scroll-type compressor, scroll member and method and apparatus for macerating-plating thereof Expired - Fee Related CN1028381C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP066741/91 1991-03-29
JP6674191 1991-03-29

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CN1028381C true CN1028381C (en) 1995-05-10

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JP5306147B2 (en) * 2009-10-30 2013-10-02 日立アプライアンス株式会社 Scroll compressor
WO2013162873A1 (en) * 2012-04-23 2013-10-31 Borgwarner Inc. Turbocharger with aluminum bearing housing
JP5986925B2 (en) * 2012-12-28 2016-09-06 三菱重工業株式会社 Rotating machine manufacturing method, rotating machine plating method
JP5986924B2 (en) * 2012-12-28 2016-09-06 三菱重工業株式会社 Manufacturing method of rotating machine
CN104480504A (en) * 2014-11-20 2015-04-01 浙江西田机械有限公司 Vortex wall oxidation device
JP2018119521A (en) * 2017-01-27 2018-08-02 三菱重工オートモーティブサーマルシステムズ株式会社 Scroll type compressor and assembly method of the same
CN106591810B (en) * 2017-02-08 2019-02-15 北京科技大学 A kind of preparation method of the uniform mosaic diamond particle of Ni-P coating surface

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