CN104114306A - Powder metal with solid lubricant and powder metal scroll compressor made therefrom - Google Patents
Powder metal with solid lubricant and powder metal scroll compressor made therefrom Download PDFInfo
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- CN104114306A CN104114306A CN201380009465.7A CN201380009465A CN104114306A CN 104114306 A CN104114306 A CN 104114306A CN 201380009465 A CN201380009465 A CN 201380009465A CN 104114306 A CN104114306 A CN 104114306A
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- powder
- powdered
- metal
- kollag
- graphite
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0264—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5%
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/09—Mixtures of metallic powders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/105—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing inorganic lubricating or binding agents, e.g. metal salts
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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
-
- 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
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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
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0253—Details concerning the base
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
- F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
- F01C17/066—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling
-
- 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
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/22—Manufacture essentially without removing material by sintering
Abstract
A powder metal formulation includes a solid lubricant and is particularly useful for the production of powder metal scroll compressors.
Description
the cross reference of related application
The priority of the U.S. Provisional Patent Application that the application requires to submit on February 15th, 2012 U.S. Provisional Patent Application is submitted at number on October 30th, 61/599,042 and 2012 number 61/720,226.Herein for various object comprehensive references these two applications at it content described in full.
Background technology
The present invention relates to comprise the powdered-metal preparation of kollag, and be specifically related to the powder metal component that uses these powdered-metal preparations to make, for example scroll compressor.
Scroll compressor is generally used for Compressed Gas or cold-producing medium.Two parts are arranged in this scroll compressor, thereby have staggered and complementary scrollwork part.These scrollwork parts can be shaped as involute, spiral or other similar curve.
During operation scroll compressor, one in scrollwork part with respect to another vortex part convolution.This motion relative to each other of scrollwork part changes the contact point of two scroll wraps between dividing.In the time having formed one section of continuous length, the contact point of these variations between scrollwork can cause two gases between parts and/or forced movement and the compression of cold-producing medium.
As mentioned above, can there is the geometry (, can there is involute or spiral-shaped) of relative complex and may have the challenge in manufacture for the parts of scroll compressor.Because powder metallurgy is suitable for processing some complex geometric shapes and high parts output well, powder metal process has been explored as the scrollwork part of making scroll compressor, or has more great ambition ground, a kind of mode of making whole scroll compressor.
Powder metal component can be manufactured in the following manner.Mould and instrument compacting powdered-metal original material under pressure of powder metal compacted part is arranged to loose powdered-metal to be formed as in use.This powder metal compacted part has the shape that comparatively approaches but be a bit larger tham final expection component shape.This powder metal compacted part of sintering diffuses into each other and is adjacent to together to cause adjacent powdered-metal particle subsequently, thus these particles is bonded together.This sintering completes at the melting temperature lower than powder metal materials just conventionally, still, in some cases, also can during sintering, produce liquid phase.Compared with initial powder metal compression member, the powdered-metal of sintering forms the sintered component of greater strength, the fine-processing technique that this sintered component can be accepted any amount (for example, machined, grinding, deburring etc.), reprocessing (for example, forge or pressure-sizing) or only use with the state of sintering.
Summary of the invention
Disclose a kind of powdered-metal preparation at this, it is particularly useful in the production of powder metal scroll formula compressor.This powdered-metal preparation comprises the kollag such as talcum or boron nitride, and these kollags form technique by powdered-metal and are carried, thereby these kollags become a part for final powder metal scroll formula compressor.In another example, kollag is the graphite powder of nickel plating.In some cases, kollag mixes with other composition of powder metal materials.In the processing temperature of the rising of these kollags during being applied to sintered powder metal, keep stable, and this kollag remains on the surface of the powder metal component after (and at least to a certain extent) sintering thus available.
This powdered-metal, as original material, can be made to the scroll compressor that comprises kollag.In addition, this kollag helps lend some impetus between scrollwork and contacts glossily with the amount of friction reducing.This kollag or inertia, thus there is not any problem when for example compressing cold-producing medium at it.
According to an aspect, provide a kind of powder metal scroll formula compressor.Powder metal scroll formula compressor comprises hub connected to each other and scrollwork, and wherein powdered-metal forms at least a portion of the powder metal scroll formula compressor that comprises scrollwork.Powdered-metal comprises iron powder, be less than the carbon of 0.9% amount of powdered-metal weight and the kollag in powdered-metal.
Iron powder and kollag can be mixed with each other before compacting sintered powder metal scroll compressor.
In some cases, kollag can be 0.25% to 3.0% of powdered-metal weight, and this powdered-metal can only comprise iron powder, carbon, kollag and not basically contain other composition.
But in other situation, powdered-metal can comprise other composition.For example, powdered-metal can further comprise the copper powder (can be element copper powder) of 3.0% the amount that is less than powdered-metal weight.In this case, iron powder, copper powder and kollag can be mixed with each other before compacting sintered powder metal scroll compressor, and powdered-metal can only comprise iron powder, carbon, copper powder and kollag and not basically contain other composition.
Many kinds of solids lubricant can be suitable for being used in powdered-metal.In order to make final parts there is lubricating function, kollag should be able in compacting and sintering process, retain under (for example, under sintering temperature, can not burnout).Therefore, those of ordinary skill in the art are to be understood that, mentioned kollag is not to be generally used for helping the powder metal component of compacting to keep its shape or common lubricant, wax or the binding agent of the demoulding from compactor, because those common lubricants, wax or binding agent can be consumed and run off during any initial fusing and/or sintering operation.Thus, many kollags as herein described can keep inertia and stable by for example processing of the temperature up to 1080 degrees Celsius in Fe-C or Fe-Cu-C system.
A kind of available kollag is talcum (Mg
3si
4o
10(OH)
2).Talcum can have the average particle size (d50) of 15 to 25 microns of nominals.
Another kind of available kollag is hexagonal boron nitride (BN).Hexagonal boron nitride can have the average particle size (d50) of 5 to 30 microns of nominals.
Kollag can have the form of nickel-plated graphite powder.In this case, carbon can have 0.9% the amount that is less than powder metal materials weight, does not comprise the graphite (because this graphite powder can not contributed the carbon content in iron significantly) in nickel-plated graphite powder.The nickel coating of nickel-plated graphite powder can surround graphite substantially, to protect graphite in the process of sintered powder metal scroll compressor, and prevents that graphite and iron powder from mixing.Nickel content in nickel-plated graphite powder can be in the scope of 55%-80 % by weight, and all the other are graphite.Graphite total amount in powder metal scroll formula compressor can be at 0.5%-5.0% weight range, or is more specifically within the scope of 1.0%-3.0 % by weight, does not comprise the carbon of 0.9% the amount that is less than powder metal materials weight.Nickel-plated graphite powder can have the average particle size of about 100 microns.
According on the other hand, a kind of powdered-metal is provided, for example can be used for the powdered-metal of the powder metal scroll formula compressor of type mentioned above.This powdered-metal comprises iron powder, be less than carbon and the kollag of 0.9% amount of powder metal materials weight.Iron powder and kollag are mixed with each other.
In a kind of situation in powdered-metal, this powdered-metal can comprise iron powder, carbon, kollag and not basically contain other composition.
In another kind of situation, powdered-metal can further comprise the copper powder (can be element copper powder) of 3.0% the amount that is less than powdered-metal weight.This iron powder, copper powder and kollag can be mixed with each other, and described powdered-metal can comprise iron powder, carbon, copper powder and kollag and not basically contain other composition.
Kollag can be 0.25% to 3.0% of powdered-metal weight.For the above-mentioned reason that retains kollag in final parts, kollag keeps inertia and stable by the processing of the temperature up to 1080 degrees Celsius in Fe-C or Fe-Cu-C system.
In a kind of situation of powdered-metal, kollag can be talcum (Mg
3si
4o
10(OH)
2).Talcum can have the average particle size (d50) of 15 to 25 microns of nominals.
In another kind of situation, kollag can be hexagonal boron nitride (BN).Hexagonal boron nitride can have the average particle size (d50) of 5 to 30 microns of nominals.
In another situation, kollag can be nickel-plated graphite powder, and the carbon that is wherein less than 0.9% amount of powder metal materials weight does not comprise the graphite in nickel-plated graphite powder.
The nickel coating of nickel-plated graphite powder can surround graphite substantially, to protect graphite in the process of sintered powder metal scroll compressor, and prevents that graphite and iron powder from mixing.Nickel content in nickel-plated graphite powder can be in the scope of 55%-80 % by weight, and all the other are graphite.Graphite total amount in powder metal scroll formula compressor can be within the scope of 0.5%-5.0 % by weight, or is more specifically within the scope of 1.0%-3.0 % by weight, does not comprise the carbon of 0.9% the amount that is less than powder metal materials weight.Nickel-plated graphite powder can have the average particle size of about 100 microns.
Form parts by compacting and sintered powder metal, can make parts with any powdered-metal preparation described herein.Described kollag is retained and is distributed to whole parts in whole technique, comprises the surface of parts.When this surface of parts is thereby that load-bearing surface kollag is especially favourable while can be used as this surperficial lubricant.
These and other advantage of the present invention will display from following the detailed description and the accompanying drawings.It is only below the description for preferred embodiments more of the present invention.Because these preferred embodiments are not tending towards as the only embodiment dropping in the scope of this claim, thereby for determining gamut of the present invention, should be referring to claims.
Brief description of the drawings
Fig. 1 shows the top perspective view of the single type scroll compressor of hub side.
Fig. 2 shows the face upwarding stereogram of the scroll compressor of Fig. 1 of vortex side.
Fig. 3 is the plan view from above of the scroll compressor of Fig. 1.
Fig. 4 is the sectional view along the scroll compressor of the hatching 4-4 intercepting of Fig. 3.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, show single type scroll compressor 100.Use the series number 13/320 of submitting in the American National stage subsequently according to PCT International Publication WO2010/135232,867 application is also disclosed as in US2012/0118104 the powder metal process of (herein comprehensive reference its full content) described method, and powder metal scroll formula compressor 100 can be made up of single powdered metal compact.
It should be explicitly made clear at this point, in the present invention, use the method described in for example PCT International Publication WO2010/135232 and U.S. Patent Application Publication No. US2012/0118104, powdered-metal preparation can be used for making respectively one or more partly or completely parts of parts.But, should so only not be limited to for the manufacture of the structure of scroll compressor and the details of technique structure and the method definitely listed.Thus, the scroll compressor of the following stated is intended to explanation, and unrestricted.
Scroll compressor 100 is by compress the powder metal component forming along compacting axis A-A.Scroll compressor 100 comprises flange 102, hub 104 and scrollwork 106.Flange 102 has end face 108 and bottom surface 110, and described end face 108 and bottom surface 110 are extended with the direction perpendicular to axis A-A and be smooth and parallel to each other substantially.Two mounting grooves 112 form around the outer peripheral edges of flange 102, scroll compressor 100 is installed to another parts in cooling assembly or analog.
Hub 104 axially extends from the end face 108 of flange 102.Hub 104 is generally columniform and has the outside surface of sagittal plane 114, inside surface 116 and the top axial plane 118 of sagittal plane.Along with the surface 116 that the outside surface of sagittal plane 114 and sagittal plane are inside is left and extends towards top axial plane 118 from the end face 108 of flange 102, these two surfaces all can have tapering slightly.By having tapering, scroll compressor 100 can more easily separate from tool elements during knockout course.
Scrollwork 106 axially extends from the bottom surface 110 of flange 102.Scrollwork 106 is the convolution walls about axis A-A convolution.Thus, scrollwork 106 comprises inwall end 120 and outer wall end 122, between two wall ends 120 and 122, be extended with the surface 124 of substantially radially outward facing on the surface 126 of substantially radially inwardly facing when convolution is while leaving axis A-A, these surfaces 124 and 126 extend parallel to each other conventionally, thereby form the convolution wall with uniform thickness.The bottom axial plane 128 of scrollwork 106 is also spiral.Again, the inside surface 126 of the surface 124 that basic sagittal plane is outside and basic sagittal plane can have tapering, to facilitate the knockout course from instrument and set of molds during compacted powder metal.
Shown in situation in, spiral is similar to Archimedes spiral, apart from axis A-A how far the meaning is if relatively axis A-A is drawn a RADIAL, no matter, at basic sagittal plane outwards and have equally a width of substantial constant towards the passage 130 forming between interior surface 124 and 126.But, can use other involute geometry shape, and should not have any restriction to scroll compressor geometry as shown in Figures 1 to 4.
In the time that the powder metal compacted technique by traditional is carried out the powdered-metal of compacting entirety, can easily form the parts with this geometry.Conventionally the powdered-metal that, top feature (for example hub 104) is transmitted in mold by the powder transmission campaign of lower tool elements forms.Because powder is passed, must be approximately 2:1 along the powder filler of vertical column and the ratio of final parts of parts, so that the parts of relative even compact after compaction process to be provided.
For the relatively demonstration of the horizontal cross-section of hub 104 and the horizontal cross-section of scrollwork 106, the powdered-metal region in hub 104 can not be found in scrollwork 106, and powdered-metal region in scrollwork 106 can not be found in hub 104.Therefore, traditional instrument and set of molds can not be carried out to provide and exceed the acceptable powder filler of the parts with this final geometry and the powder transmission campaign of the ratio of final parts.On the contrary, hub and scrollwork part, conventionally by independent compacting, are then joined after this.But PCT International Publication WO2010/135232 and U.S. Patent Application Publication No. US2012/0118104 have described the mode of manufacturing integral type parts.The parts that use tradition and improved method to manufacture are imagined within the scope of the invention.
Now go to powdered-metal preparation, the powdered-metal that is used for making this powder metal scroll formula compressor comprises iron powder (elemental iron or prealloy iron), be less than powdered-metal 0.9 % by weight amount carbon and in powdered-metal 0.25 % by weight the kollag to the amount between 3.0 % by weight.Also can comprise that other element adds, for example copper (Cu) and nickel (Ni).But powdered-metal preparation is relatively simple, it does not need that these list outside composition, but may comprise other element that does not substantially affect the trace of powdered-metal attribute.
The powder that can use traditional means (the mixed broken machine of for example V-type or double cone mixer) to complete Multiple components mixes.Multiple components powder can such as, mix with the lubricant of the compacting except kollag (lithium stearate, Clariant lubricant (Licowax) etc.).
In a kind of situation, can be talcum for the kollag of this powdered-metal preparation, talcum is also called hydrated magnesium silicate and has chemical formula Mg
3si
4o
10(OH)
2.When as kollag, in talcum, may there is a certain amount of quartzy impurity.In the time that talcum is used as kollag, talcum can preferably present the powder type with 15 to 25 microns of average particle sizes of nominal (d50).
In another kind of situation, can be hexagonal boron nitride (BN) for the kollag of this powder formulation.When as kollag, boron nitride can preferably present the powder type with 5 to 30 microns of average particle sizes of nominal (d50).
In powder metal component, provide the another kind of method of kollag in place to be, use nickel-plated graphite powder as kollag.Nickel coating is protected graphite during sintering, and prevents that graphite is combined with iron powder.In final products, coating between the parts operating period, protect and maintain graphite until nickel coating breaks (for example,, because surperficial wearing and tearing are broken) to discharge graphitic lubricant.Nickel graphite has the nickel content of from 55 to 80 % by weight scopes, and all the other are graphite.Nickel-plated graphite powder can have the average particle size of about 100 microns.Graphite size can be coarse grain (Taylor 88-98% mesh size-120/+230 or 115-65 micrometer range) to particulate (be greater than 85% for Taylor mesh size-120/+270 and be less than 15% for-270/+325 or 115-43 micrometer range), both all have a small amount of more slightly or thinner particle size (being less than 5 % by weight).Kollag is added to mixture so that the graphite of 0.5 % by weight to 5 % by weight levels to be provided, although think that 1 % by weight is common to the graphite of 3 % by weight scopes to major applications.This graphite does not comprise in powdered-metal for changing the metallic carbon content of iron powder smelting.
It should be noted that this powdered-metal preparation has comprised the powder for kollag as the blending ingredients in powdered-metal.The kollag of this mixing is inertia at Fe-C, Fe-Cu-C or other powder metal mixture during with the Temperature Treatment of 1180 degrees Celsius of left and right.This means, even if after powdered-metal is compacted and is sintered to final parts, still exist all or quite a few kollag.
Kollag helps to reduce cracking and wearing and tearing when repeating motion under the mechanical load of (and particularly in the scroll wraps timesharing that uses scroll compressor) in the time for example using scroll compressor of frictional heat and system.The anti-stick company of kollag, and can not produce significant resistance to the motion of scroll compressor.Comprise that kollag can be in the powder metal component with ferrite/pearlite microstructure preferably implements, and comprise that kollag also can be used for improving machinability.
In a specific embodiment that is particularly conducive to powder metal scroll formula compressor, powdered-metal preparation can be made into have be less than 0.9 % by weight carbon, be less than 3.0% copper and the kollag between 0.25% to 3.0 % by weight, remaining powder is elemental iron, and not containing other substantial additive.Again, this is the relatively simple powder formulation of one, and it is not containing a large amount of alloying elements.
Can prepare all those powdered-metal preparations as described above, and subsequently by by powder pressing powdered metal compression member and and then sintered powder be processed into the powder metal component of sintering.It is contemplated that, these parts can be compacted for monomer or by some independent compacting parts and form, and these compacting parts are attached at subsequently together to form single final parts.But, it is contemplated that have the arbitrary portion of the parts that multiple linking portions make can have at those and need most the powdered-metal that comprises kollag in the part of kollag.For example, the scrollwork part of scroll compressor can be used above-mentioned powder to make, and the other parts that described scrollwork part is attached to can be made up of the powder metal materials that does not comprise kollag.Certainly,, although they interlink, do not get rid of two parts of many parts parts and all made by the powder that comprises kollag.
In a word, this technique allows traditional compaction process in rigidity grinding tool, and eliminated after sintering kollag follow-up penetrate into porous sintered body.
It will be appreciated that and can carry out various other amendments and modification to preferred embodiment within the spirit and scope of the present invention.Therefore, the present invention should not be limited to described embodiment.Should be with reference to claims, to determine gamut of the present invention.
Claims (35)
1. a powder metal scroll formula compressor, comprising:
Hub connected to each other and scrollwork;
Formation comprises the powdered-metal of at least a portion of the described powder metal scroll formula compressor of described scrollwork, and described powdered-metal comprises iron powder, be less than the carbon of 0.9% amount of described powdered-metal weight and the kollag in powdered-metal.
2. powder metal scroll formula compressor as described in claim 1, is characterized in that, described iron powder and kollag are being mixed with each other before powder metal scroll formula compressor described in compacting and sintering.
3. powder metal scroll formula compressor as described in claim 1, it is characterized in that, described kollag is 0.25% to 3.0% of described powdered-metal weight, and described powdered-metal comprises iron powder, carbon, described kollag and do not basically contain other composition.
4. powder metal scroll formula compressor as described in claim 1, is characterized in that, described powdered-metal further comprises the copper powder of 3.0% the amount that is less than described powdered-metal weight.
5. powder metal scroll formula compressor as described in claim 4, it is characterized in that, described iron powder, described copper powder and described kollag are being mixed with each other before powder metal scroll formula compressor described in compacting and sintering, and described powdered-metal comprises iron powder, carbon, copper powder and kollag and do not basically contain other composition.
6. powder metal scroll formula compressor as described in claim 4, is characterized in that, described copper powder is element copper powder.
7. powder metal scroll formula compressor as described in claim 1, is characterized in that, described kollag is talcum (Mg
3si
4o
10(OH)
2).
8. powder metal scroll formula compressor as described in claim 7, is characterized in that, described talcum has the average particle size (d50) of 15 to 25 microns of nominals.
9. powder metal scroll formula compressor as described in claim 1, is characterized in that, described kollag is hexagonal boron nitride (BN).
10. powder metal scroll formula compressor as described in claim 9, is characterized in that, described hexagonal boron nitride has the average particle size (d50) of 5 to 30 microns of nominals.
11. powder metal scroll formula compressors as described in claim 1, is characterized in that, described kollag keeps inertia and stable by the processing of the temperature up to 1080 degrees Celsius in Fe-C or Fe-Cu-C system.
12. powder metal scroll formula compressors as described in claim 1, is characterized in that, described kollag is nickel-plated graphite powder, and the carbon that is wherein less than 0.9% amount of powder metal materials weight does not comprise the graphite in nickel-plated graphite powder.
13. powder metal scroll formula compressors as described in claim 12; it is characterized in that; the nickel coating of described nickel-plated graphite powder surrounds graphite substantially, to protect graphite in the process of sintered powder metal scroll compressor, and prevents that graphite and iron powder from mixing.
14. powder metal scroll formula compressors as described in claim 12, is characterized in that, the nickel content in described nickel-plated graphite powder can be in the scope of 55-80 % by weight, and all the other are graphite.
15. powder metal scroll formula compressors as described in claim 12, is characterized in that, the graphite total amount in powder metal scroll formula compressor, within the scope of 0.5%-5.0 % by weight, does not comprise the carbon of 0.9% the amount that is less than powder metal materials weight.
16. powder metal scroll formula compressors as described in claim 12, is characterized in that, the graphite total amount in powder metal scroll formula compressor, within the scope of 1.0%-3.0 % by weight, does not comprise the carbon of 0.9% the amount that is less than powder metal materials weight.
17. powder metal scroll formula compressors as described in claim 12, is characterized in that, nickel-plated graphite powder has the average particle size of about 100 microns.
18. 1 kinds of powdered-metals, comprising:
Iron powder;
Be less than the carbon of 0.9% amount of powder metal materials weight; And
Kollag;
Wherein said iron powder be mixed with each other with described kollag.
19. powdered-metals as claimed in claim 18, is characterized in that, described kollag is 0.25% to 3.0% of described powdered-metal weight.
20. powdered-metals as described in claim 18, is characterized in that, described powdered-metal further comprises the copper powder of 3.0% the amount that is less than described powdered-metal weight.
21. powdered-metals as described in claim 18, it is characterized in that, described iron powder, described copper powder and described kollag are mixed with each other, and described powdered-metal comprises iron powder, carbon, copper powder and described kollag and do not basically contain other composition.
22. powdered-metals as described in claim 20, is characterized in that, described copper powder is element copper powder.
23. powdered-metals as described in claim 20, is characterized in that, described kollag is talcum (Mg
3si
4o
10(OH)
2).
24. powdered-metals described in claim 23, is characterized in that, described talcum has the average particle size (d50) of 15 to 25 microns of nominals.
25. powdered-metals as described in claim 18, is characterized in that, described kollag is hexagonal boron nitride (BN).
26. powdered-metals described in claim 25, is characterized in that, described hexagonal boron nitride has the average particle size (d50) of 5 to 30 microns of nominals.
27. powdered-metals as described in claim 18, is characterized in that, described kollag keeps inertia and stable by the processing of the temperature up to 1080 degrees Celsius in Fe-C or Fe-Cu-C system.
28. powdered-metals as described in claim 18, is characterized in that, described powdered-metal comprises iron powder, carbon, described kollag and do not basically contain other composition.
29. powdered-metals as described in claim 18, is characterized in that, described kollag is nickel-plated graphite powder, and the carbon that is wherein less than 0.9% amount of powder metal materials weight does not comprise the graphite in nickel-plated graphite powder.
30. powdered-metals described in claim 29, is characterized in that, the nickel coating of described nickel-plated graphite powder surrounds described graphite substantially, to protect graphite in the process of sintered powder metal scroll compressor, and prevent that graphite and iron powder from mixing.
31. powdered-metals described in claim 29, is characterized in that, the nickel content in described nickel-plated graphite powder can be in the scope of 55%-80 % by weight, and all the other are graphite.
32. powdered-metals described in claim 29, is characterized in that, the graphite total amount in powder metal scroll formula compressor, within the scope of 0.5%-5.0 % by weight, does not comprise the carbon of 0.9% the amount that is less than powder metal materials weight.
33. powdered-metals described in claim 29, is characterized in that, the graphite total amount in powder metal scroll formula compressor, within the scope of 1.0%-3.0 % by weight, does not comprise the carbon of 0.9% the amount that is less than powder metal materials weight.
34. powdered-metals described in claim 29, is characterized in that, nickel-plated graphite powder has the average particle size of about 100 microns.
35. 1 kinds of parts that use powdered-metal as claimed in claim 18 to make, it is characterized in that, described powdered-metal be compacted and sintering to form described parts, and described kollag remains and is distributed in the whole parts that comprise described parts surface in whole technique.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261599042P | 2012-02-15 | 2012-02-15 | |
| US61/599,042 | 2012-02-15 | ||
| US201261720226P | 2012-10-30 | 2012-10-30 | |
| US61/720,226 | 2012-10-30 | ||
| PCT/US2013/025576 WO2013122873A1 (en) | 2012-02-15 | 2013-02-11 | Powder metal with solid lubricant and powder metal scroll compressor made therefrom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104114306A true CN104114306A (en) | 2014-10-22 |
Family
ID=47827425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380009465.7A Pending CN104114306A (en) | 2012-02-15 | 2013-02-11 | Powder metal with solid lubricant and powder metal scroll compressor made therefrom |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20150017043A1 (en) |
| JP (1) | JP2015528850A (en) |
| CN (1) | CN104114306A (en) |
| BR (1) | BR112014017956A8 (en) |
| DE (1) | DE112013000990T5 (en) |
| WO (1) | WO2013122873A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017125096B4 (en) | 2017-10-26 | 2022-05-19 | Hanon Systems | Method of making a scroll compressor and scroll compressor made with the method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1002883A1 (en) * | 1998-11-19 | 2000-05-24 | Eaton Corporation | Powdered metal valve seat insert |
| EP1331395A2 (en) * | 2002-01-24 | 2003-07-30 | Copeland Corporation | Powder metal scrolls |
| EP1985393A1 (en) * | 2006-02-15 | 2008-10-29 | JFE Steel Corporation | Iron-base mixed powders and processes for production of iron-base powder compacts and sintered iron-base powder compacts |
| US20100229386A1 (en) * | 2009-03-11 | 2010-09-16 | Emerson Climate Technologies, Inc. | Powder metal scrolls and sinter-brazing methods for making the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE755697A (en) * | 1969-09-03 | 1971-03-03 | Int Nickel Ltd | MANUFACTURING OF FRITTED METAL PRODUCTS |
| JPS58133347A (en) * | 1982-01-30 | 1983-08-09 | Oiles Ind Co Ltd | High temperature sintered slide member and preparation thereof |
| GB9207139D0 (en) * | 1992-04-01 | 1992-05-13 | Brico Eng | Sintered materials |
| JPH06192710A (en) * | 1992-12-25 | 1994-07-12 | Toshiba Corp | Sliding member for compressor and its production |
| JP4215285B2 (en) * | 1995-08-08 | 2009-01-28 | 株式会社小松製作所 | Self-lubricating sintered sliding material and manufacturing method thereof |
| SE0203134D0 (en) * | 2002-10-22 | 2002-10-22 | Hoeganaes Ab | Method of preparing iron-based components |
| WO2010135232A1 (en) | 2009-05-18 | 2010-11-25 | Gkn Sinter Metals, Llc | Powder metal die filling |
-
2013
- 2013-02-11 US US14/377,218 patent/US20150017043A1/en not_active Abandoned
- 2013-02-11 BR BR112014017956A patent/BR112014017956A8/en not_active Application Discontinuation
- 2013-02-11 JP JP2014557709A patent/JP2015528850A/en active Pending
- 2013-02-11 CN CN201380009465.7A patent/CN104114306A/en active Pending
- 2013-02-11 WO PCT/US2013/025576 patent/WO2013122873A1/en active Application Filing
- 2013-02-11 DE DE112013000990.0T patent/DE112013000990T5/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1002883A1 (en) * | 1998-11-19 | 2000-05-24 | Eaton Corporation | Powdered metal valve seat insert |
| EP1331395A2 (en) * | 2002-01-24 | 2003-07-30 | Copeland Corporation | Powder metal scrolls |
| EP1985393A1 (en) * | 2006-02-15 | 2008-10-29 | JFE Steel Corporation | Iron-base mixed powders and processes for production of iron-base powder compacts and sintered iron-base powder compacts |
| US20100229386A1 (en) * | 2009-03-11 | 2010-09-16 | Emerson Climate Technologies, Inc. | Powder metal scrolls and sinter-brazing methods for making the same |
Non-Patent Citations (1)
| Title |
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| 焦明华等: "镀镍石墨粉与铜基自润滑材料摩擦磨损特性研究", 《摩擦学学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112014017956A8 (en) | 2017-07-11 |
| BR112014017956A2 (en) | 2017-06-20 |
| WO2013122873A1 (en) | 2013-08-22 |
| US20150017043A1 (en) | 2015-01-15 |
| JP2015528850A (en) | 2015-10-01 |
| DE112013000990T5 (en) | 2015-04-09 |
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