CN105612015A - Method for bonding metal powder injection molded bodies - Google Patents
Method for bonding metal powder injection molded bodies Download PDFInfo
- Publication number
- CN105612015A CN105612015A CN201480056174.8A CN201480056174A CN105612015A CN 105612015 A CN105612015 A CN 105612015A CN 201480056174 A CN201480056174 A CN 201480056174A CN 105612015 A CN105612015 A CN 105612015A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- metal powder
- powder injection
- injection molding
- molding body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 115
- 239000002184 metal Substances 0.000 title claims abstract description 115
- 239000000843 powder Substances 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000002347 injection Methods 0.000 title claims abstract description 11
- 239000007924 injection Substances 0.000 title claims abstract description 11
- 238000001746 injection moulding Methods 0.000 claims abstract description 84
- 239000011248 coating agent Substances 0.000 claims abstract description 62
- 238000005245 sintering Methods 0.000 claims abstract description 42
- 238000005238 degreasing Methods 0.000 claims abstract description 37
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 239000007767 bonding agent Substances 0.000 claims description 25
- 230000002787 reinforcement Effects 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000460 chlorine Substances 0.000 abstract description 14
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052801 chlorine Inorganic materials 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 239000001993 wax Substances 0.000 description 18
- 239000000203 mixture Substances 0.000 description 7
- 230000008602 contraction Effects 0.000 description 4
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910001026 inconel Inorganic materials 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000014643 Orbignya martiana Nutrition 0.000 description 1
- 244000021150 Orbignya martiana Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 241000278713 Theora Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- ACOGMWBDRJJKNB-UHFFFAOYSA-N acetic acid;ethene Chemical compound C=C.CC(O)=O ACOGMWBDRJJKNB-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004203 carnauba wax Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000039 congener Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
- B22F7/064—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts using an intermediate powder layer
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
- F01D9/044—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators permanently, e.g. by welding, brazing, casting or the like
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/04—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/34—Rotor-blade aggregates of unitary construction, e.g. formed of sheet laminae
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/22—Manufacture essentially without removing material by sintering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
- F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
- F05D2230/237—Brazing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
According to this method for bonding metal powder injection molded bodies, a metal product is produced by: [1] bringing at least two metal powder injection molded bodies, each of which is obtained by kneading a metal powder and a binder and injection molding the kneaded material, into contact with each other; [2] applying a coating agent that contains nitrogen or chlorine to a bond part where the at least two metal powder injection molded bodies are in contact with each other; and [3] bonding the at least two metal powder injection molded bodies with each other at the bond part by means of degreasing or sintering. This bonding method is capable of improving the bonding strength at the bond part.
Description
Technical field
The present invention relates to the joint method [methodforjointingmetal of metal powder injection molding bodyInjectionmoldedparts], relate in particular to for multiple metal powder injection molding bodies are engaged and madeThe joint method of the metal powder injection molding body of metallic article.
Background technology
Metal powder injection molding method (MIM:MetalInjectionMolding) is following method, logicalCross make by mixing with bonding agent metal dust and with the mode with regulation shape carried out injection molding becomeType body (base substrate [greenpart]) in a vacuum or in gaseous environment, carry out degreasing and sintering, thereby makeDensity exceedes 95% metallic article. Use the material that has mixed a large amount of resin or wax etc. as bonding agent.By making multiple bonding agent composition disperse to be successively maintained in the shape of body.
With regard to bonding agent, preferably use can not residue in the composition in metal. For example, generally will be at 250 DEG CUnder following ratio lower temperature, hold the wax of volatile stearic acid, solid wax, Brazil wax etc. and at 500 DEG CAt following temperature, easily decompose polyethylene, polypropylene, polystyrene, EVA (the ethene acetic acid second of dispersingAlkene ester), the mixed with resin of EEA (ethylene-ethyl acrylate copolymer resin) etc. and using.
But as disclosed in following patent documentation 1, the stator blade of turbo-compressor is configured in ring-typeBetween interior guard shield and the outer shield of ring-type. In addition, stator blade is by forming taking Ti or Ni as the alloy of principal component,And combination forms along multiple stator blades sector [statorbladesectors] of circumferentially cutting apart. Generally,Stator blade sector forms in the following way, makes dividually respectively tyre, the structure of a part that forms outer shieldInterior band and the blade of a part for guard shield in becoming, and at blade soldering tyre and interior band.
In recent years, make the thinner and blade face of blade make complicated three-dimensional from putting forward H.D angle, havingThe trend of curved surface, but in casting, be difficult to ensure the form accuracy of blade in plastic working. Therefore, with regard to bladeManufacture method propose to use the scheme of above-mentioned metal powder injection molding method.
The above-mentioned stator blade sector between tyre and interior band with multiple blades exists and is difficult to by being injected intoType (operation of metal powder injection molding method) and form situation. Therefore, propose to be formed in addition withBetween interior band, have a blade stator blade sector dividing body and multiple dividing bodies are engaged to form stator bladeThe scheme of sector.
Following patent documentation 2 discloses the joint method of metal powder injection molding body, and its object is to suppressThe reduction of bond strength. In this joint method, use dilute with water and the metal dust phase that forms formed bodyThe paste that congener metal dust and water-soluble pasty mass [gelatinizedsolublematerial] form.First, above-mentioned paste is applied to the composition surface of the formed body before sintering, formed body utilize each other paste andTemporary joint. Afterwards, the formed body of temporary joint is sintered, the gold that formed body comprises by paste each otherBelong to powder and be engaged. In addition in following patent documentation 2, disclose after degreasing paste coating in connecing,Close the situation that face carries out the situation of sintering afterwards and paste coating carried out behind composition surface to degreasing and sintering.
Prior art document
Patent documentation
Patent documentation 1: the JP 2004-197622 of Japan communique
Patent documentation 2: the JP 2010-236042 of Japan communique
Summary of the invention
With regard to the paste of recording with regard to above-mentioned patent documentation 2, use the water-soluble pasty state taking starchiness as raw materialMaterial. Starch is the macromolecule being formed by carbon (C), hydrogen (H) and oxygen (O), easily because heat is dividedSeparate. In addition, in metal powder injection molding method, make to glue from the base substrate being formed by metal dust and bonding agentConnect agent and disperse to make formed body, so the size of formed body is shunk from the size of base substrate. Here be difficult to control,Make the distortion on the composition surface causing because of contraction. Therefore, if use the paste (bonding agent) of easy thermal decomposition,Because paste decomposes quickly, disperses in degreasing process or sintering circuit, so be difficult to maintain contractionThe composition surface state that is adjacent to each other. Therefore, the low effect of inhibition bond strength is insufficient.
The object of the present invention is to provide the connecing of metal powder injection molding body that can make bond strength improveClose method.
The joint method that a kind of metal powder injection molding body is provided that is characterized as of the present invention, makes mixing gold respectivelyBelong to powder and bonding agent and carry out injection molding at least two mutual butts of metal powder injection molding body,The junction surface that above-mentioned at least two metal powder injection molding bodies carry out butt applies the coating that contains nitrogen or chlorineAgent, by above-mentioned at least two metal powder injection moldings that applied above-mentioned coating agent at above-mentioned junction surfaceBody carries out degreasing or sintering, and above-mentioned at least two metal powder injection molding bodies are engaged at above-mentioned junction surfaceAnd making metallic article.
According to above-mentioned feature, the coating agent that can comprise nitrogen or chlorine by use postpones the decomposition speed of coating agentDegree, in the degreasing of metal powder injection molding body or while firing, can maintain at junction surface metal dust more longwaysThe state that is adjacent to of injection molded article, thus the bond strength at junction surface can be improved.
Here, be preferably, above-mentioned bonding agent contains at the wax of set point of temperature scope volatilization with than afore mentioned rulesThe resin that the temperature range that temperature range is high is dispersed, in the degreasing of above-mentioned at least two metal powder injection molding bodiesTime or when sintering, at least a portion of above-mentioned coating agent is volatilized later than above-mentioned wax, more Zao than above-mentioned resinGround disperses.
In addition, be preferably, above-mentioned coating agent is coated in contact-making surface or all sides at above-mentioned junction surface.
In addition, be preferably, be maintained under the state below 0.1mm in the gap at above-mentioned junction surface, rightAbove-mentioned at least two metal powder injection molding bodies carry out degreasing or sintering.
In addition, be preferably, above-mentioned metallic article is the band portion that possesses multiple blades and support above-mentioned multiple bladesVane sector, above-mentioned at least two metal powder injection molding bodies are respectively have single blade above-mentionedThe dividing body of vane sector.
Have again, be preferably, on the back side of the above-mentioned face that is provided with above-mentioned blade with erecting of portion, be formed withThe reinforcement extending towards the direction of intersecting with the blade string of a musical instrument of above-mentioned blade.
Here, be preferably, if by above-mentioned on above-mentioned dividing body the bearing of trend with portion and above-mentioned reinforcementThe angle of bearing of trend is made as θ, and angle θ is greater than 0 °, and below the established angle of above-mentioned blade.
Or, be preferably, if by above-mentioned on above-mentioned dividing body the bearing of trend with portion and above-mentioned reinforcementThe angle of bearing of trend is made as θ, 0 ° of < θ≤12 °.
Brief description of the drawings
Fig. 1 is the flow chart of the joint method of the metal powder injection molding body of embodiment.
Fig. 2 is the solid of utilizing the metallic article of the joint method making of above-mentioned metal powder injection molding bodyFigure, Fig. 2 (a) represents first case, and Fig. 2 (b) represents second case, and Fig. 2 (c) represents the 3rd example.
Fig. 3 (a) represents the stereogram of the metal powder injection molding body after injection moulding, and Fig. 3 (b) isRepresent the stereogram of the metal powder injection molding body that is coated with coating agent.
Fig. 4 is the explanation cutaway view that represents the coating method of coating agent, and Fig. 4 (a) represents first case, Fig. 4(b) represent second case, Fig. 4 (c) represents the 3rd example, and Fig. 4 (d) represents the 4th example.
Fig. 5 (a) is front view in addition, and Fig. 5 (b) represents the extension angle θ of reinforcement and stablizesThe chart of the relation of degree S.
Fig. 6 is the front view of variation in addition.
Fig. 7 is the key diagram of the gap experiment method at junction surface, and Fig. 7 (a) represents gap adjustment stateSide view, Fig. 7 (b) is the side view that represents to engage done state.
Detailed description of the invention
Below, with reference to accompanying drawing, the embodiment of the joint method to metal powder injection molding body describes.
In the joint method of the metal powder injection molding body of present embodiment, by will be to metal dust andBonding agent carries out mixing and injection molding metal powder injection molding body 2 and is engaged with each other and carries out degreasing[degreasing] (unsticking [debinding]) or sintering [sintering] (firing [calcining]), makeMetallic article 1. Here, the coating of the junction surface 3 of metal powder injection molding body 2 comprise nitrogen (N) orAfter the coating agent 4 of chlorine (Cl), metal powder injection molding body 2 carries out degreasing or sintering with being engaged with each other.
Specifically, as shown in Figure 1, make metallic article 1 through following operation: to metal dust and stickyConnect agent and carry out mixing mixing operation S1; Mixing heating raw materials is dissolved and is injected in metal dieInjection moulding operation S2; By metal powder injection molding body 2 combinations with one another of taking out from metal die andThe working procedure of coating S3 of the coating such as junction surface 3 use flatirons coating agent 4; The metal powder of coating agent 4 will be coated withThe degreasing process S4 of end injection molded article 2 use heating furnace degreasings; And by the metal powder injection of degreasingThe sintering circuit S5 of formed body 2 use heating furnace sintering.
Metallic article 1 is for example a part for the stator blade unit of turbo-compressor. Stator blade unit is by ring-typeThe outer shield of guard shield, ring-type and the multiple stator blades that are configured between them form. Stator blade unit passes throughAll upwards combinations are divided into multiple stator blade sectors and make. Above-mentioned metallic article 1 is stator blade sector.
Metallic article 1 shown in Fig. 2 (a) (stator blade sector) is by the tyre of the part as outer shield11, as in the part of interior guard shield with 12 and be disposed in addition 11 and interior many with between 12Individual stator blade 13 forms. In addition, the chain-dotted line in Fig. 2 (a) represents junction surface 3.
11 have the guard section 11a of the outer circumferential side runner face that forms stator blade 13 and are formed at respectively guard shield in additionThe hook portion 11b of two ora terminalis of the 11a of portion. Between hook portion 11b and guard section 11a, be formed with ladder 11d,Ladder 11d engaging is in the track that is formed on turbine case. In addition 11 erect the face that is provided with stator blade 13The back side (with respect to the face of runner face opposition side), is formed with recessed by guard section 11a and hook portion 11bPortion. In recess, the reinforcement 11c that links a pair of hook portion 11b is formed on guard section 11a.
Inside there is the guard section 12a of the inner circumferential side runner face that forms stator blade 13 and be respectively formed at guard shield with 12The slot part 12b of the two axial ora terminalis of the 12a of portion. Slot part 12b is turned back and is formed by the lateral margin of guard section 12a.By insert the interior Zhou Duan that plate accessory links multiple stator blades sector between a pair of slot part 12b, protected by multipleIn the 12a of cover portion formation, be with 12 to be retained as ring-type. Above-mentioned reinforcement 11c is to 11 reinforcing in additionAnd suppress the distortion of the tyre 11 in degreasing process S4, sintering circuit S5. To the effect of reinforcement 11cBe described later.
Metallic article 1 is not limited to above-mentioned structure. As shown in Fig. 2 (b), metallic article 1 also canTo be the stator blade sector without reinforcement 11c. In addition, as shown in Fig. 2 (c), metallic article 1 also canTo be the movable vane sector as a part for the movable vane unit of turbo-compressor. As the metal system of movable vane sectorProduct 1 by form outer shield a part tyre 11 and be incorporated in addition multiple movable vanes 14 of 11 and form.In addition, the chain-dotted line in Fig. 2 (b) and Fig. 2 (c) represents junction surface 3.
In addition, metallic article 1 is not limited to stator blade sector, movable vane sector, comprises multiple metal dustsInjection molded article 2 engages and all accessories of making. In addition, above-mentioned tyre 11, interior with 12 structureBe an example, be not limited to above-mentioned shape.
Above-mentioned metallic article 1 has complicated shape, exists and is difficult to maintain form accuracy and by once notingPenetrate the situation that moulding is made. In addition, in the situation that metallic article 1 maximizes, exist weight increase andIn degreasing or sintering, produce the situation of distortion. Therefore, in the present embodiment, as shown in Fig. 3 (a),By multiple metal powder injection molding bodies 2 (dividing body of vane sector) are engaged, carry out construction drawing 2 (a)Shown in such metallic article 1. Each metal powder injection molding body 2 have in addition 11 with interior be with 12 itBetween there is the fairly simple shape of single stator blade 13, so can maintain form accuracy and with onceInjection moulding is made.
The metallic article 1 multiple metal powder injection molding bodies 2 being engaged and make is to possess multiple bladesThe vane sector of the band portion of (stator blade 13) and support blade (in addition 11 and in 12) is (for example, quietLeaf sector). Metal powder injection molding body 2 is parts that vane sector is cut apart by blade. Therefore,Make metallic article 1 have complicated shape, metal powder injection molding body 2 becomes easy injection molding shapeShape, can maintain form accuracy. In addition, in the following description, to metal powder injection molding body 2Also use the symbol identical with each several part of metallic article 1 (tyre 11, be interiorly with 12, stator blade 13 etc.).
Each operation of the flow chart to Fig. 1 describes. In mixing operation S1, become metal dust notePenetrate the metal dust of raw material of formed body 2 and bonding agent by mixing and granulating. As metal dust, useFor example stainless steel (SUS), titanium, various alloy, various potteries etc. are made to particle diameter 10～20 μ m left and rightPowder.
In addition, bonding agent is included in the wax of set point of temperature scope volatilization and disperses in the temperature range higher than waxResin. Wax is for example stearic acid, paraffin, the babassu that the ratio lower temperature below 250 DEG C is easy to volatilizationWax etc. In addition, resin be for example temperature below 500 DEG C easily decompose the polyethylene that disperses, polypropylene,Polystyrene, EVA (ethylene vinyl acetate), EEA (ethylene-ethyl acrylate copolymer resin)Deng (also they can be mixed and use). In addition, in bonding agent except adding wax and resin, according toNeed and add lubricant, surfactant etc.
In injection moulding operation S2, form the metal powder injection molding body 2 shown in Fig. 3 (a). GoldBelong to powder injection-molded body 2 and be also referred to as base substrate. In metal powder injection molding body 2, forming metal systemOutside the metal dust of product 1, also contain bonding agent, so the size of metal powder injection molding body 2 compares metalGoods 1 are large.
In working procedure of coating S3, as shown in Fig. 3 (b), multiple metal powder injection molding bodies 2 are to becomeThe mode of the shape of metallic article 1 is assembled, and applies coating agent 4 at junction surface 3. Coating agent 4 for exampleWax or the resin of nitrogenous (N), chlorine (Cl). In addition, at least a portion of coating agent 4 includesMaterial that when degreasing or sintering, the wax more contained than bonding agent disperses later, in the time of degreasing or sintering, compare bonding agentThe material that contained resin earlier disperses. Here, " at least a portion of coating agent 4 " refers to, coatingA part for the contained composition of agent 4, the wax more contained than bonding agent disperses later, or more contained than bonding agentResin earlier disperses.
Specifically, as coating agent 4, can use and there is polyurethane-base (NHCOO-), acid amidesBase (CONH2) wax, chlorinated wax etc., with bonding dose of the PUR of polyurethane-base. As commodity,For the Hi-bon[Hi-Bon of Hitachi] (registration mark: Hitachi changes into the [HitachiKaseiPolymer of Polymer CompanyCo., Ltd.]), Henkel PUR [Macromelt] (the registration mark: [HenkelAG&Co. of Henkel Corp.KGaA]) and chlorinated wax [EMPARA] (registration mark: the aginomoto fine chemistry industry [Ajinomoto of companyFine-TechnoCo., Inc.]) etc.
If if dispersed at the early stage coating agent 4 of degreasing process S4 described later, sintering circuit S5,Produce gap at the junction surface 3 of metal powder injection molding body 2, the intensity of the metallic article 1 after sinteringReduce. But the coating agent 4 of present embodiment is that to comprise the material that is difficult to Yin Re and decompose be nitrogen (N)And/or wax or the resin of chlorine (Cl), so can be on the early rank of degreasing process S4, sintering circuit S5Section is dispersed. In addition, coating agent 4 also can be by the wax of nitrogenous (N) and/or chlorine (Cl) and nitrogenous (N)And/or the mixed with resin of chlorine (Cl) forms.
By using above-mentioned coating agent 4, can make at least a portion of coating agent 4 in the time of degreasing or sinteringThe wax more contained than bonding agent disperses later, or in the time of degreasing or sintering than the contained resin of bonding agent earlierDisperse. Coating agent 4 comprises the material dispersing later than the wax of the bonding agent of degreasing, so can suppress de-Dispersing of coating agent 4 in fat operation S4, can maintain for a long time the bonding of coating agent 4 and (temporarily connectClose) function.
In addition, the material that when coating agent 4 is included in degreasing or sintering, the resin more contained than bonding agent earlier dispersesMaterial (, before and after the not residual resin to bonding agent of at least one portion of coating agent 4 disperses), so agglomerantIn order S5, coating agent 4 can not stop up the path of dispersing of the resin of bonding agent, can be integrally balancedly rightMetal dust carries out sintering. Its result, can suppress the distortion of metallic article 1. (mention here in addition," distortion " do not comprise the receipts from metal powder injection molding body 2 to metallic article 1 that cause because of sinteringContracting. ) in addition, the connecing of metal powder injection molding body 2 (being also referred to as brown body) after degreasing process S4Close portion 3 and be retained as the state of being adjacent to, so can make the intensity of the metallic article 1 after sintering improve.
Under the state that above-mentioned coating agent 4 dissolves in heating, utilize flatiron [solderingiron], bristle[brush], roller [roller], winding-up [spraying], dipping [immersioncoating] etc. are coated on junction surface 3.For example, using flatiron in the situation that, using 330 DEG C of following softening points of serviceability temperature with flatironCoating agent 4. Coating agent 4 is applied to contact-making surface [contactsurfaces] 3a or all sides at junction surface 3[circumferentialsidesurface]3b。
In the first case shown in Fig. 4 (a), at contact-making surface 3a coating coating agent 4. Be coated with at contact-making surface 3aApply in the situation of coating agent 4, can make the bonding force (engaging force) at junction surface 3 improve. But, connectThe gap g that closes portion 3 is preferably maintained at below 0.1mm. If it is large that gap g becomes, become metallic article 1The strength decreased, the main cause that metallic article 1 is out of shape at junction surface 3.
In the second case shown in Fig. 4 (b), at contact-making surface 3a and all side 3b coating coating agent 4.Contact-making surface 3a is the opposed faces on the junction surface 3 of metal powder injection molding body 2, and all side 3b are metalsSide on the junction surface 3 of powder injection-molded body 2. Except contact-making surface 3a, by all side 3bAlso apply coating agent 4, can reduce to the coating amount of contact-making surface 3a, can easily gap g be adjusted toBelow 0.1mm. In addition, can make bonding (joint) area increase, so can make the sticky of junction surface 3Relay (joint) improves.
In the 3rd example shown in Fig. 4 (c), at all side 3b coating coating agents 4. Herein, coating agent4 are coated on the complete cycle of all side 3b at junction surface 3. By only applying coating agent 4 at all side 3b, fromAnd can easily gap g be adjusted to below 0.1mm. In addition, be coated on the coating agent of all side 3b4 are heated and dissolve in degreasing process S4 or sintering circuit S5, naturally soak into contact-making surface 3a. Therefore,Gap g can be maintained below desired value, and by contact-making surface 3a, the bonding force at junction surface 3 (be connectMake a concerted effort) improve.
In the 4th example shown in Fig. 4 (d), at the part coating coating agent 4 of all side 3b. ConnecingClose portion 3 and have in the situation of complicated shape, also can be only at the position of easily coating coating coating agent 4.In addition, as shown in Fig. 4 (d), in the situation that contact-making surface 3a extends in vertical, be coated onThe coating agent 4 of all side 3b of side soaks into contact-making surface 3a because of gravity.
As shown in Fig. 3 (b), the metal powder injection molding body 2 that is coated with coating agent 4 is positioned in supportOn piece 5 and be fed to degreasing process S4. Here, the height h by making in addition 11 ladder 11d with inThe height h of the ora terminalis with 12 is consistent, thereby can be in the bight that ladder 11d is connected to back-up block 5Under state, stator blade 13 is flatly loaded.
In addition, in the above-mentioned inconsistent situation of height h, if make 11 ladder 11d butt in additionUnder the state in the bight of back-up block 5, make stator blade 13 levels, exist interior with 12 ora terminalis and back-up blockBetween 5, produce the situation in gap. Under these circumstances, also can be interior with 12 ora terminalis and back-up block 5Between insert and fill the supplemental support piece (not shown) in gap. Or, if make interior with 12 ora terminalis withUnder the state that bracer 5 contacts, make stator blade 13 levels, have in addition 11 ladder 11d and back-up block 5Between bight, produce the situation in gap. Under these circumstances, also can ladder 11d and back-up block 5 (Bight) between insert and fill the supplemental support piece (not shown) in gap.
In degreasing process S4 and sintering circuit S5, bonding agent is removed, so the metal after sinteringThe size of goods 1, compare metal powder injection molding body 2 size and integrally shrink. Therefore, canMake stator blade 13 approximate horizontal and shrink by advance stator blade 13 flatly being loaded. Its result, can makeBy integrally balanced contraction of bonding metal powder injection molding body 2, and deformation can suppress to shrink time is drawnThe distortion rising.
In degreasing process S4, the contained wax of bonding agent is removed. Heating-up temperature in degreasing process S4General lower than the heating-up temperature of sintering circuit S5. Therefore, also can by with sintering circuit S5 in useThe different degreasing plant of sintering furnace heats metal powder injection molding body 2. Certainly, also can lead toCross the temperature of controlling the sintering furnace using in sintering circuit S5, metal powder injection molding body 2 is carried outDegreasing.
In sintering circuit S5, the contained resin of bonding agent is removed, and metal dust is sintered. For example,By the IN718[IN of Ni base alloy: inconel [Inconel] (the registration mark: [Special of specialty metal companyMetalsCorporation])] in situation about using as metal dust, preferably exceeding 1200 DEG C non-Sintering under oxidation environment. For the metallic article 1 after sintering, as post processing, both can be for sinteringThe confirmation of the situation of carrying out and measure density, also can carry out for the inching of size punch process, also canWith the processing of discharging for end face processing, can also implement to grind and cut or grind for adjustment form surface roughnessMill is processed.
To above-mentioned reinforcement 11c (with reference to Fig. 2 (a), Fig. 3 (a) and Fig. 3 (b) with reference to) carry outExplanation. As shown in Fig. 5 (a), extend and be provided with reinforcement 11c at the back side of tyre 11 (band portions). AddThe strong bearing of trend Lr of muscle 11c and the blade string of a musical instrument [chordline] Lc of stator blade 13 intersect. If make with respect toThe angle of the reinforcement 11c of 11 bearing of trend Le (situation of Fig. 5 (a) is vertical) is in additionThe horizontal stroke of the tyre 11 of θ (> 0: the size of angle), metal powder injection molding body 2 is wide is A, its heightFor B, the stability S of metal powder injection molding body 2 (metallic article 1) (dB: decibel) canBy S=10log10(B/A) try to achieve.
The above-mentioned angle θ of molding strengthening ribs 11c is the metal powder injection molding of 0 °, 6 ° and 12 ° respectivelyBody 2, carries out three-dimensional measurement to the shape of the tyre 11 after sintering, and with the desirable metal of even contractionThe shape of powder injection-molded body 2 (metallic article 1) compares. Fig. 5 (b) represents comparative result.If stability S is higher, less with the difference in size of the metal powder injection molding body 2 of even contraction. On the contrary,If stability S is lower, larger with the difference in size of the metal powder injection molding body 2 of even contraction.
As shown in Fig. 5 (b), compare θ=0 °, the stability S of θ=6 ° or 12 ° is higher. Therefore, strengthenMuscle 11c preferably increases above-mentioned angle θ (, increasing the angle of the crossing with respect to blade string of a musical instrument Lc). But,Even the in the situation that of θ=0 °, because bars such as the size of metal powder injection molding body 2, shape, weightPart, also can obtain stability S up to the situation of form accuracy that can maintain metallic article 1. Therefore,Do not need except the situation of above-mentioned angle θ=0 °.
In addition, if the angle θ of reinforcement 11c is excessive, exists and promote to produce because of the deadweight of reinforcement 11cThe hidden danger of distortion when raw sintering. Therefore, preferably to above-mentioned angle θ capping. If consider above-mentionedSituation, preferably the upper limit of above-mentioned angle θ is elected as stator blade 13 established angle [staggerangle] λ (> 0:The size of angle). " established angle λ " refers to as shown in Fig. 5 (a) with respect to turbine wheel shaft direction La (Fig. 5(a) situation is parallel with above-mentioned bearing of trend Le) the angle of blade string of a musical instrument Lc. Specifically,The result of the test of the upper limit of above-mentioned angle θ based on above-mentioned, preferably elects the value in the scope of 6 °～12 ° as. SoAnd the upper limit of above-mentioned angle θ is not limited to this value (scope), according to the deadweight of reinforcement 11c, energyEnough set according to each metal powder injection molding body 2.
, the angle between bearing of trend Le and the bearing of trend Lr of reinforcement 11c of preferred tyre 11θ is greater than 0 °, and, below established angle λ. Especially, shrink if only consider the distortion causing, outstandingIts preferred above-mentioned angle θ is the size identical with established angle λ. Here, due to the established angle λ of stator blade 13Be defined as to a certain degree, therefore specifically, be preferably 0 ° of < θ≤12 °. In addition, above-mentioned angle θ from outsideBearing of trend Le with 11 to the bearing of trend Lr of reinforcement 11c towards, and from turbine wheel shaft direction LaTowards the opposite to the established angle λ of blade string of a musical instrument Lc.
Fig. 6 represents the distortion that the end face of metal powder injection molding body 2 tilts with respect to turbine wheel shaft direction LaExample. As shown in Figure 6, also exist because with the relation of the established angle λ of stator blade 13, and reinforcement 11c thisThe situation that sample ground tilts. In this variation, 11 bearing of trend Le and turbine wheel shaft direction La are not in additionParallel. In situation as shown in Figure 6, can dwindle stretching out with respect to the tyre 11 of reinforcement 11cAmount OH1 and OH2's is poor, thereby can effectively suppress metal powder injection molding body 2 (metal systemsProduct 1) distortion that causes of deformation while shrinking.
Next, the gap g to above-mentioned junction surface 3 (with reference to Fig. 4 (a)) describes. As Fig. 7(a), shown in, prepare two metal powder injection molding plates 6, at a side metal powder injection molding plate 6Upper, use distance piece 7, the opposing party's metal powder injection molding plate 6 is tilted, at two metal dustsBe injected between template 6 and form gap. Change by the horizontal level that makes distance piece 7, can adjusting playSize. Apply coating agent 4 and make 6 degreasings of metal powder injection molding plate and sintering in this gap, andThe clearance C that mensuration can engage two metal powder injection molding plates 6 with sufficient intensity. Can realize footThe clearance C of enough bond strengths is 0.1mm. Therefore, preferably the gap g at junction surface 3 is located to 0.1mmBelow.
In addition, correspondence becomes metal dust and the bonding agent etc. of the raw material of metal powder injection molding plate 6,Above-mentioned clearance C can change. , the gap g at junction surface 3 be not must be limited at 0.1mm withUnder, rule of thumb preferably below 0.1mm～0.5mm.
According to the joint method of present embodiment, coating agent 4 contains nitrogen (N) or chlorine (Cl), so energyEnough make the decomposition rate of coating agent 4 slower. Therefore the metal powder, can maintain more longways degreasing or sintering timeEnd injection molded article 2 state that is adjacent to each other, can improve the bond strength at junction surface 3.
The present invention is not limited to above-mentioned embodiment, can carry out in the scope that does not exceed purport of the present inventionMultiple change. For example, also can be at the interior 12 formation reinforcements of being with. In addition, reinforcement 11c is in order to improveThe form accuracy of the metallic article 1 (metal powder injection molding body 2) when degreasing or sintering and institute is setSituation when being cut to stator blade unit and completing also existing (even if reinforcement 11c is cut, also can basisRevolution mark judges the angle θ of reinforcement 11c). In addition, reinforcement 11c also can be at a metal powderEnd injection molded article 2 arranges multiple.
Claims (8)
1. a joint method for metal powder injection molding body, is characterized in that,
Make respectively mixing metal dust and bonding agent and carry out injection molding at least two metal powder injectionsThe mutual butt of formed body,
The junction surface coating of carrying out butt at above-mentioned at least two metal powder injection molding bodies contains nitrogen or chlorineCoating agent,
By above-mentioned at least two metal powder injections that applied above-mentioned coating agent at above-mentioned junction surface are becomeType body carries out degreasing or sintering, and above-mentioned at least two metal powder injection molding bodies are connect at above-mentioned junction surfaceClose and make metallic article.
2. the joint method of metal powder injection molding body according to claim 1, is characterized in that,
Above-mentioned bonding agent contains at the wax of set point of temperature scope volatilization with higher than afore mentioned rules temperature rangeThe resin that temperature range is dispersed,
In the time of above-mentioned at least two metal powder injection molding body degreasings or when sintering, above-mentioned coating agent at leastA part is volatilized later than above-mentioned wax, earlier disperses than above-mentioned resin.
3. the joint method of metal powder injection molding body according to claim 1 and 2, its featureBe,
Above-mentioned coating agent is coated in contact-making surface or all sides at above-mentioned junction surface.
4. according to the joint method of the metal powder injection molding body described in any one in claim 1～3,It is characterized in that,
Be maintained under the state below 0.1mm in the gap at above-mentioned junction surface, to above-mentioned at least two goldBelong to powder injection-molded body and carry out degreasing or sintering.
5. according to the joint method of the metal powder injection molding body described in any one in claim 1～4,It is characterized in that,
Above-mentioned metallic article is the vane sector with portion that possesses multiple blades and support above-mentioned multiple blades,
Above-mentioned at least two metal powder injection molding bodies are respectively the above-mentioned paddle fans with single bladeThe dividing body in district.
6. the joint method of metal powder injection molding body according to claim 5, is characterized in that,
On the back side of the above-mentioned face that is provided with above-mentioned blade with erecting of portion, be formed with towards with above-mentioned bladeThe blade string of a musical instrument intersect direction extend reinforcement.
7. the joint method of metal powder injection molding body according to claim 6, is characterized in that,
If the angle of the bearing of trend by above-mentioned on above-mentioned dividing body with portion and the bearing of trend of above-mentioned reinforcementDegree is made as θ, and angle θ is greater than 0 °, and below the established angle of above-mentioned blade.
8. the joint method of metal powder injection molding body according to claim 6, is characterized in that,
If the angle of the bearing of trend by above-mentioned on above-mentioned dividing body with portion and the bearing of trend of above-mentioned reinforcementDegree is made as θ, 0 ° of < θ≤12 °.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013214346 | 2013-10-15 | ||
| JP2013-214346 | 2013-10-15 | ||
| PCT/JP2014/074514 WO2015056513A1 (en) | 2013-10-15 | 2014-09-17 | Method for bonding metal powder injection molded bodies |
Publications (2)
| Publication Number | Publication Date |
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| CN105612015A true CN105612015A (en) | 2016-05-25 |
| CN105612015B CN105612015B (en) | 2019-04-12 |
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| CN201480056174.8A Expired - Fee Related CN105612015B (en) | 2013-10-15 | 2014-09-17 | The joint method of metal powder injection molding body |
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| Country | Link |
|---|---|
| US (1) | US20160221081A1 (en) |
| EP (1) | EP3059033A4 (en) |
| JP (1) | JP6245268B2 (en) |
| KR (1) | KR20160098182A (en) |
| CN (1) | CN105612015B (en) |
| CA (1) | CA2926768C (en) |
| TW (1) | TWI511815B (en) |
| WO (1) | WO2015056513A1 (en) |
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| FR3039839B1 (en) * | 2015-08-06 | 2019-12-20 | Safran Aircraft Engines | PROCESS FOR MANUFACTURING A PART OF COMPOSITE MATERIAL |
| CN105562696A (en) * | 2016-01-11 | 2016-05-11 | 江西理工大学 | Metal 3D printing method |
| WO2018220213A1 (en) * | 2017-06-01 | 2018-12-06 | Safran | Method for improved manufacturing of a dual microstructure part |
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| FR3096912B1 (en) * | 2019-06-07 | 2021-10-29 | Safran Aircraft Engines | A method of manufacturing a turbomachine part by MIM molding |
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| JP7435161B2 (en) * | 2020-03-30 | 2024-02-21 | セイコーエプソン株式会社 | Manufacturing method of metal composite sintered body |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201524640A (en) | 2015-07-01 |
| CA2926768C (en) | 2018-10-23 |
| JP6245268B2 (en) | 2017-12-13 |
| EP3059033A1 (en) | 2016-08-24 |
| CA2926768A1 (en) | 2015-04-23 |
| CN105612015B (en) | 2019-04-12 |
| TWI511815B (en) | 2015-12-11 |
| US20160221081A1 (en) | 2016-08-04 |
| JPWO2015056513A1 (en) | 2017-03-09 |
| EP3059033A4 (en) | 2017-06-21 |
| WO2015056513A1 (en) | 2015-04-23 |
| KR20160098182A (en) | 2016-08-18 |
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