DE102012203339A1 - Method for manufacturing green element for fluid nozzle, involves pressing heated stamper in components, and partially melting and welding components in one of parting line and stamper adjacent area - Google Patents
Method for manufacturing green element for fluid nozzle, involves pressing heated stamper in components, and partially melting and welding components in one of parting line and stamper adjacent area Download PDFInfo
- Publication number
- DE102012203339A1 DE102012203339A1 DE201210203339 DE102012203339A DE102012203339A1 DE 102012203339 A1 DE102012203339 A1 DE 102012203339A1 DE 201210203339 DE201210203339 DE 201210203339 DE 102012203339 A DE102012203339 A DE 102012203339A DE 102012203339 A1 DE102012203339 A1 DE 102012203339A1
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- Prior art keywords
- components
- parting line
- stamp
- green compact
- fluid nozzle
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- 239000012530 fluid Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 238000003466 welding Methods 0.000 title claims description 19
- 238000003825 pressing Methods 0.000 title claims description 14
- 238000002844 melting Methods 0.000 title claims description 12
- 230000008018 melting Effects 0.000 title claims description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 15
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 11
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000005304 joining Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BPJYAXCTOHRFDQ-UHFFFAOYSA-L tetracopper;2,4,6-trioxido-1,3,5,2,4,6-trioxatriarsinane;diacetate Chemical compound [Cu+2].[Cu+2].[Cu+2].[Cu+2].CC([O-])=O.CC([O-])=O.[O-][As]1O[As]([O-])O[As]([O-])O1.[O-][As]1O[As]([O-])O[As]([O-])O1 BPJYAXCTOHRFDQ-UHFFFAOYSA-L 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
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- 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
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F5/106—Tube or ring forms
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/002—Producing shaped prefabricated articles from the material assembled from preformed elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/128—Stepped joint cross-sections
- B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/128—Stepped joint cross-sections
- B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
- B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/341—Measures for intermixing the material of the joint interlayer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/61—Joining from or joining on the inside
- B29C66/612—Making circumferential joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/822—Transmission mechanisms
- B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- 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
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
- B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
- B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2103/00—Use of resin-bonded materials as moulding material
- B29K2103/04—Inorganic materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2103/00—Use of resin-bonded materials as moulding material
- B29K2103/04—Inorganic materials
- B29K2103/06—Metal powders, metal carbides or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen eines Grünlings für eine Fluiddüse aus wenigstens zwei Bauteilen, wobei die Bauteile mittels Pulverspritzgießen eines Feedstocks aus Pulver und thermoplastischem Binder hergestellt sind und wobei die wenigstens zwei Bauteile zusammengefügt werden, so dass eine Trennfuge zwischen den wenigstens zwei Bauteilen gebildet ist. Die Erfindung betrifft auch einen Grünling und eine Fluiddüse.The invention relates to a method for producing a green compact for a fluid nozzle from at least two components, wherein the components are made by powder injection molding of a feedstock of powder and thermoplastic binder and wherein the at least two components are joined together, so that a parting line between the at least two components is. The invention also relates to a green compact and a fluid nozzle.
Aus der europäischen Patentschrift
Aus der US-Patentschrift
Aus der US-Patentschrift
Aus der US-Patentschrift
Aus dem japanischen Patentdokument
Mit der Erfindung sollen ein verbessertes Verfahren und eine verbesserte Vorrichtung zum Herstellen eines Grünlings für eine Fluiddüse sowie ein verbesserter Grünling und eine verbesserte Fluiddüse bereitgestellt werden. It is an object of the present invention to provide an improved method and apparatus for making a green compact for a fluid nozzle and an improved green compact and fluid nozzle.
Erfindungsgemäß ist hierzu ein Verfahren zum Herstellen eines Grünlings für eine Fluiddüse aus wenigstens zwei Bauteilen vorgesehen, wobei die Bauteile mittels Pulverspritzgießen eines Feedstocks aus Pulver und thermoplastischem Binder hergestellt sind, bei dem folgenden Schritte vorgesehen sind: According to the invention, a method for producing a green body for a fluid nozzle from at least two components is provided, the components being produced by means of powder injection molding of a feedstock of powder and thermoplastic binder, in which the following steps are provided:
Zusammenfügen der wenigstens zwei Bauteile, so dass eine Trennfuge zwischen den wenigstens zwei Bauteilen gebildet ist, Aufsetzen eines beheizten Stempels auf wenigstens einen Abschnitt der Trennfuge, so dass der Stempel die Trennfuge wenigstens abschnittsweise überdeckt und die wenigstens zwei Bauteile berührt, und Joining the at least two components, so that a parting line is formed between the at least two components, placing a heated stamp on at least a portion of the parting line, so that the stamp at least partially covers the parting line and touches the at least two components, and
Eindrücken des beheizten Stempels in die wenigstens zwei Bauteile und dadurch partielles Aufschmelzen und partielles Verschweißen der wenigstens zwei Bauteile in einem an die Trennfuge und den Stempel angrenzenden Bereich. Pushing the heated punch into the at least two components and thereby partial melting and partial welding of the at least two components in a region adjacent to the parting line and the punch area.
Überraschenderweise ermöglicht es das einfache Eindrücken eines Stempels im Bereich der Trennfuge, ein partielles Aufschmelzen und dadurch ein Verschweißen der wenigstens zwei Bauteile zu realisieren. Durch das Verschweißen der beiden Bauteile vermischen sich die Pulverkörner der beiden Bauteile im Bereich der Trennfuge und nach dem Entbindern und Sintern kann eine gas- und wasserdichte Verbindung zwischen diesen beiden Bauteilen sichergestellt werden. Das einfache Eindrücken eines beheizten Stempels ist dabei schnell und kostengünstig realisierbar. Typischerweise liegt ein Zeitaufwand für das Eindrücken des Stempels und das dadurch verursachte partielle Aufschmelzen und partielle Verschweißen der wenigstens zwei Bauteile im Bereich der Trennfuge im Bereich weniger Sekunden bis zu etwa einer halben Minute. Surprisingly, the simple depression of a stamp in the region of the parting line makes it possible to realize a partial melting and thereby a welding of the at least two components. By welding the two components, the powder grains of the two components mix in the region of the parting line and after debinding and sintering, a gas- and water-tight connection between these two components can be ensured. The simple impressions of a heated stamp can be realized quickly and inexpensively. Typically, a time required for the impression of the stamp and the resulting partial melting and partial welding of the at least two components in the region of the parting line in the range of a few seconds to about half a minute.
In Weiterbildung der Erfindung erfolgt das Eindrücken des Stempels in einer Richtung, die zu einer Richtung der Trennfuge in einem unmittelbar an den Stempel angrenzenden Bereich einen Winkel zwischen 0° und 45° einnimmt. In a further development of the invention, the impression of the stamp is made in a direction which assumes an angle between 0 ° and 45 ° to a direction of the parting line in a region immediately adjacent to the stamp.
Um ein partielles Verschweißen der wenigstens zwei Bauteile zu erreichen, hat es sich als vorteilhaft herausgestellt, den Stempel in die unterhalb des Stempels liegende Trennfuge in einer Richtung einzudrücken, die zur Trennfuge in einem Winkelbereich zwischen +45° und –45° liegt. In order to achieve a partial welding of the at least two components, it has been found to be advantageous to press the stamp into the parting line lying below the stamp in a direction which lies at an angle between + 45 ° and -45 ° with respect to the parting line.
Beim Eindrücken in einer solchen Richtung kann sichergestellt werden, dass beide Bauteile zu beiden Seiten der Trennfuge partiell aufgeschmolzen und partiell miteinander verschweißt werden. When pressing in such a direction can be ensured that both components are partially melted on both sides of the parting line and partially welded together.
In Weiterbildung der Erfindung erfolgt das Aufheizen des Stempels auf eine Temperatur, die der Schmelztemperatur des Bindermaterials entspricht. In a further development of the invention, the heating of the stamp takes place at a temperature which corresponds to the melting temperature of the binder material.
Eine deutlich höhere Temperatur als die Schmelztemperatur könnte zu einem Verbrennen oder einer Veränderung des Bindermaterials führen. Eine Temperatur unterhalb des Schmelzpunkts würde das partielle Aufschmelzen verhindern. A significantly higher temperature than the melting temperature could lead to burning or a change in the binder material. A temperature below the melting point would prevent the partial melting.
In Weiterbildung der Erfindung erfolgt das Eindrücken des Stempels mit einer vordefinierten Kraft und/oder um eine vordefinierte Wegstrecke. In a development of the invention, the impression of the stamp is made with a predefined force and / or a predefined distance.
Durch Eindrücken des Stempels mit einer vordefinierten Kraft kann sichergestellt werden, dass der mechanisch noch nicht hoch belastbare Grünling zerstört wird und dass der Stempel in das Material der beiden Bauteile des Grünlings nur in bereits partiell aufgeschmolzene Bereiche vordringt und dadurch eine Verschweißung ermöglicht. Kombiniert hiermit oder alternativ kann der Stempel um eine vordefinierte Wegstrecke eingedrückt werden, um dadurch sicherzustellen, dass die partielle Verschweißung bis in eine ausreichende Tiefe der Trennfuge erfolgt, um im entbinderten und gesinterten Zustand sicherzustellen, dass die erhaltene Fluiddüse sowohl flüssigkeitsdicht als auch gasdicht ausgebildet ist. By impressing the punch with a predefined force can be ensured that the mechanically not yet highly resilient green body is destroyed and that the punch penetrates into the material of the two components of the green only in already partially melted areas, thereby allowing a weld. Combined with this or alternatively, the stamp can be pressed in by a predefined distance, thereby ensuring that the partial welding takes place to a sufficient depth of the parting line to ensure in the debindered and sintered state that the resulting fluid nozzle is both liquid-tight and gas-tight ,
In Weiterbildung der Erfindung erfolgt das Entbindern und Sintern des Grünlings. In development of the invention, the debinding and sintering of the green body takes place.
Das der Erfindung zugrunde liegende Problem wird auch durch eine Vorrichtung zum Herstellen eines Grünlings für eine Fluiddüse aus wenigstens zwei Bauteilen gelöst, wobei die Bauteile mittels Pulverspritzgießen eines Feedstocks aus Pulver und thermoplastischem Binder herstellt sind, bei der eine Aufnahme zum Fixieren der zwei zusammengefügten Bauteile, so dass eine Trennfuge zwischen den Bauteilen wenigstens abschnittsweise an einer zugänglichen Oberfläche der zusammengefügten Bauteile endet, ein beheizbarer Stempel mit einer Kontaktfläche zum Aufsetzen auf die zugängliche Oberfläche und Mittel zum Eindrücken des Stempels in die zugängliche Oberfläche der Trennfuge vorgesehen sind. The problem underlying the invention is also solved by a device for producing a green compact for a fluid nozzle of at least two components, wherein the components are produced by means of powder injection molding of a feedstock of powder and thermoplastic binder, wherein a receptacle for fixing the two assembled components, so that a parting line between the components at least partially ends at an accessible surface of the assembled components, a heatable punch with a contact surface for placing on the accessible surface and means are provided for pressing the punch in the accessible surface of the parting line.
Auf diese Weise kann eine vergleichsweise einfach aufgebaute Vorrichtung bereitgestellt werden, die dennoch die zuverlässige partielle Verschweißung der wenigstens zwei Bauteile des Grünlings ermöglicht. In this way, a comparatively simply constructed device can be provided, which nevertheless allows the reliable partial welding of the at least two components of the green body.
Der Stempel kann in einfacher Weise beispielsweise mittels einer elektrischen Widerstandsheizung beheizt werden und die Mittel zum Eindrücken des Stempels können in einfacher Weise durch einen handbetriebenen Hebel realisiert werden. Soll die beim Eindrücken aufgebrachte Kraft limitiert oder vordefiniert werden, so kann dies entweder durch Beaufschlagung mittels eines Pneumatik- oder Hydraulikzylinders oder durch einfaches Vorsehen einer Feder realisiert werden. Ein vordefinierter Weg beim Eindrücken kann mittels eines Endanschlags sichergestellt werden. The stamp can be heated in a simple manner, for example by means of an electrical resistance heater and the means for pressing the punch can be realized in a simple manner by a hand-operated lever. If the force applied during pressing-in should be limited or predefined, this can be achieved either by acting on it by means of a pneumatic or hydraulic cylinder or simply by providing a spring. A predefined way when pressing in can be ensured by means of an end stop.
In Weiterbildung der Erfindung ist der Stempel wenigstens im Bereich seiner Kontaktfläche antihaftbeschichtet. In a further development of the invention, the stamp is non-stick coated at least in the region of its contact surface.
Auf diese Weise wird verhindert, dass der Stempel an dem Material des Grünlings nach dem Verschweißen anhaftet. Die Antihaftbeschichtung ist vorteilhafterweise auf die Eigenschaften des verwendeten thermoplastischen Binders ausgelegt. In this way it is prevented that the stamp adheres to the material of the green compact after welding. The non-stick coating is advantageously designed for the properties of the thermoplastic binder used.
In Weiterbildung der Erfindung ist der Stempel im Bereich seiner Kontaktfläche teflonbeschichtet. In a further development of the invention, the stamp is Teflon-coated in the region of its contact surface.
Mittels einer Teflonbeschichtung lässt sich zuverlässig das Anhaften der Kontaktfläche des Stempels nach dem Verschweißen an dem Grünling verhindern. By means of a Teflon coating can reliably prevent the adhesion of the contact surface of the stamp after welding to the green compact.
In Weiterbildung der Erfindung ist die Kontaktfläche des Stempels ringförmig ausgebildet. In a further development of the invention, the contact surface of the punch is annular.
Auf diese Weise kann, bei entsprechender ringförmiger Ausbildung der Trennfuge, durch einmaliges Aufsetzen und Eindrücken des Stempels eine partielle Verschweißung der mehreren Bauteile des Grünlings über den gesamten Umfang der Trennfuge erzielt werden. Die Kontaktfläche kann dabei kreisringförmig ausgebildet sein oder auch Ecken oder eine unregelmäßige Form aufweisen. In this way, with a corresponding annular formation of the parting line, by a single placement and pressing of the stamp a partial welding of the plurality of components of the green compact over the entire circumference of the parting line can be achieved. The contact surface may be annular or may have corners or an irregular shape.
Das der Erfindung zugrunde liegende Problem wird auch durch einen Grünling für eine Fluiddüse mit wenigstens zwei Bauteilen gelöst, wobei die Bauteile unter Bildung einer Trennfuge zusammengefügt sind, bei dem die Bauteile in einem Bereich, der an die Trennfuge und eine Oberfläche, an der die Trennfuge endet, angrenzt, eine durch Eindrücken eines beheizten Stempels verursachte Vertiefung aufweisen und wenigstens partiell miteinander verschweißt sind. The problem underlying the invention is also solved by a green compact for a fluid nozzle having at least two components, wherein the components are joined together to form a parting line, wherein the components in a region adjacent to the parting line and a surface on which the parting line ends, adjacent, have a depression caused by impressions of a heated punch and at least partially welded together.
Aufgrund der partiellen Verschweißung der mehreren Bauteile des Grünlings im Bereich der Trennfuge kann nach dem Entbindern und Sintern des Grünlings eine Fluiddüse erhalten werden, die prozesssicher flüssigkeitsdicht und gasdicht ausgebildet ist. Due to the partial welding of the plurality of components of the green compact in the region of the parting line, a fluid nozzle can be obtained after debindering and sintering of the green compact, which is formed liquid-tight and gas-tight process reliable.
In Weiterbildung der Erfindung weist die Vertiefung die Form einer Nut auf. Vorteilhafterweise ist die Nut ringförmig ausgebildet. In a further development of the invention, the depression has the shape of a groove. Advantageously, the groove is annular.
In Weiterbildung der Erfindung sind im Bereich der Trennfuge Rastmittel vorgesehen und die Trennfuge endet an einer zugänglichen Oberfläche und nimmt unmittelbar vor ihrem Ende einen Winkel zwischen +45° und –45° zu dieser Oberfläche ein. In a further development of the invention locking means are provided in the region of the parting line and the parting line ends at an accessible surface and assumes immediately before its end an angle between + 45 ° and -45 ° to this surface.
Durch Vorsehen von Rastmitteln kann der sichere Zusammenhalt der mehreren Bauteile des Grünlings sichergestellt werden. Die Anordnung des Endes der Trennfuge in einem Bereich zwischen +45° und –45° zu der Oberfläche, von der aus der beheizte Stempel dann eingedrückt wird, erlaubt die Realisierung einer zuverlässigen partiellen Verschweißung der mehreren Bauteile. By providing locking means, the secure cohesion of the several components of the green compact can be ensured. The arrangement of the end of the parting line in a range between + 45 ° and -45 ° to the surface from which the heated stamp is then pressed, allows the realization of a reliable partial welding of the multiple components.
In Weiterbildung der Erfindung ist die Trennfuge ringförmig ausgebildet. Das der Erfindung zugrunde liegende Problem wird auch durch eine Fluiddüse gelöst, die durch Entbindern und Sintern eines erfindungsgemäßen Grünlings hergestellt ist. In a further development of the invention, the parting line is annular. The problem underlying the invention is also solved by a fluid nozzle which is produced by debinding and sintering of a green compact according to the invention.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Ansprüchen und der folgenden Beschreibung bevorzugter Ausführungsformen der Erfindung im Zusammenhang mit den Zeichnungen. Einzelmerkmale der unterschiedlichen, in den Zeichnungen dargestellten und beschriebenen Ausführungsformen können dabei in beliebiger Weise miteinander kombiniert werden, ohne den Rahmen der Erfindung zu überschreiten. In den Zeichnungen zeigen:Further features and advantages of the invention will become apparent from the claims and the following description of preferred embodiments of the invention in conjunction with the drawings. Individual features of the different embodiments illustrated and described in the drawings can be combined with one another in any desired manner, without exceeding the scope of the invention. In the drawings show:
Die Darstellung der
Das einfache Einsetzen des Bauteils
Die Erfindung schafft hier Abhilfe, indem die beiden Bauteile
Die Darstellung der
Um das Bauteil
In diesem Zustand des Grünlings
Die Kontaktfläche des Stempels
Der Stempel
Die Darstellung der
Die Darstellung der
In dem in
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 1122007 B1 [0002] EP 1122007 B1 [0002]
- US 4364783 [0003] US 4364783 [0003]
- US 4853053 [0004] US 4853053 [0004]
- US 4722824 [0005] US 4722824 [0005]
- JP 11315564 [0006] JP 11315564 [0006]
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210203339 DE102012203339A1 (en) | 2012-03-02 | 2012-03-02 | Method for manufacturing green element for fluid nozzle, involves pressing heated stamper in components, and partially melting and welding components in one of parting line and stamper adjacent area |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210203339 DE102012203339A1 (en) | 2012-03-02 | 2012-03-02 | Method for manufacturing green element for fluid nozzle, involves pressing heated stamper in components, and partially melting and welding components in one of parting line and stamper adjacent area |
Publications (1)
Publication Number | Publication Date |
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DE102012203339A1 true DE102012203339A1 (en) | 2013-09-05 |
Family
ID=48985109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE201210203339 Ceased DE102012203339A1 (en) | 2012-03-02 | 2012-03-02 | Method for manufacturing green element for fluid nozzle, involves pressing heated stamper in components, and partially melting and welding components in one of parting line and stamper adjacent area |
Country Status (1)
Country | Link |
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DE (1) | DE102012203339A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4364783A (en) | 1981-09-08 | 1982-12-21 | Ford Motor Company | Ultrasonic end-capping of beta"-alumina tubes |
US4722824A (en) | 1986-06-04 | 1988-02-02 | Fine Particle Technology Corp. | Method of joining green bodies prior to sintering |
US4853053A (en) | 1983-11-21 | 1989-08-01 | Societe Anonyme Dite: Ceraver | Method of welding two halves of a hollow ceramic component |
JPH11315564A (en) | 1998-12-04 | 1999-11-16 | Toto Ltd | Jointed product |
DE10118254A1 (en) * | 2001-04-11 | 2002-10-17 | Joachim Schnieders | Powder spraying method used in the production of sintered components comprises preparing a powder and a binder for pressure die casting, powder spraying to form a green body, removing the binder to form a brown body, and sintering |
EP1122007B1 (en) | 2000-02-07 | 2007-11-14 | Spraying Systems Co. | Process for preparing a powder metal body having a hermetic seal |
-
2012
- 2012-03-02 DE DE201210203339 patent/DE102012203339A1/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4364783A (en) | 1981-09-08 | 1982-12-21 | Ford Motor Company | Ultrasonic end-capping of beta"-alumina tubes |
US4853053A (en) | 1983-11-21 | 1989-08-01 | Societe Anonyme Dite: Ceraver | Method of welding two halves of a hollow ceramic component |
US4722824A (en) | 1986-06-04 | 1988-02-02 | Fine Particle Technology Corp. | Method of joining green bodies prior to sintering |
JPH11315564A (en) | 1998-12-04 | 1999-11-16 | Toto Ltd | Jointed product |
EP1122007B1 (en) | 2000-02-07 | 2007-11-14 | Spraying Systems Co. | Process for preparing a powder metal body having a hermetic seal |
DE60131308T2 (en) * | 2000-02-07 | 2008-09-25 | Spraying Systems Co., Wheaton | Method for producing a powder metal body with hermetic sealing |
DE10118254A1 (en) * | 2001-04-11 | 2002-10-17 | Joachim Schnieders | Powder spraying method used in the production of sintered components comprises preparing a powder and a binder for pressure die casting, powder spraying to form a green body, removing the binder to form a brown body, and sintering |
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