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EP2033143A1 - Procédé de production d'une pièce moulée - Google Patents

Procédé de production d'une pièce moulée

Info

Publication number
EP2033143A1
EP2033143A1 EP07730250A EP07730250A EP2033143A1 EP 2033143 A1 EP2033143 A1 EP 2033143A1 EP 07730250 A EP07730250 A EP 07730250A EP 07730250 A EP07730250 A EP 07730250A EP 2033143 A1 EP2033143 A1 EP 2033143A1
Authority
EP
European Patent Office
Prior art keywords
magnetizable material
information
information element
casting
stored
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
Application number
EP07730250A
Other languages
German (de)
English (en)
Other versions
EP2033143B1 (fr
Inventor
Rene Jabado
Jens Dahl Jensen
Ursus KRÜGER
Daniel Körtvelyessy
Richard Matz
Ralph Reiche
Michael Rindler
Steffen Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP2033143A1 publication Critical patent/EP2033143A1/fr
Application granted granted Critical
Publication of EP2033143B1 publication Critical patent/EP2033143B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D45/00—Equipment for casting, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/12097—Nonparticulate component encloses particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12458—All metal or with adjacent metals having composition, density, or hardness gradient
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/32—Composite [nonstructural laminate] of inorganic material having metal-compound-containing layer and having defined magnetic layer

Definitions

  • the invention relates to a method having the features according to the preamble of claim 1.
  • metal castings for machines for example turbine blades for gas turbines
  • information elements in order to be able to unambiguously identify the cast parts during maintenance or cleaning work or in the case of warranty claims.
  • the publication DE 102 07 279 discloses a method for producing a gas turbine blade, in which a part identification number is impressed by corresponding shaping of a casting mold directly into the surface of the gas turbine blade.
  • Gas turbine blade thus forms an information element that carries as information the part identification number.
  • the US Patent 1,561,427 discloses a method for marking a molded part, wherein the characters of a mate rial ⁇ with a higher melting temperature than the melting temperature of the casting during its manufacture in this Lucas- be poured.
  • US Pat. No. 4,161,830 discloses a method for inscribing a cast part having the features according to the preamble of claim 1.
  • signs made of a heat-resistant material with a dovetail shape, viewed in cross-section are each connected to a holding magnet.
  • the resulting units are each attached to the wall of a mold, wherein the Hal ⁇ te concept generated by the holding magnets.
  • the characters are poured into the casting by filling a casting material into the casting mold.
  • the invention has for its object to admit a method for producing a casting with an information element ⁇ that can be easily performed and offers a particularly high level of security against falsification of Informa ⁇ tion of the information element ,
  • a significant advantage of the method according to the invention is the fact that can be characterized with this casting very forgery-proof. This is initially due to the fact that the information element is cast in the casting and therefore is not visible from the outside. Only the manufacturer of the casting knows that such Information element is contained in the casting, and only he knows the exact position of the information element to read the ⁇ ses subsequently. Strangers, for example buyers or users of the casting, thus do not readily have an opportunity to access the information element and to read it out.
  • Another significant advantage of the method according to the invention is that falsification of the information element is virtually eliminated, at least very expensive, since the information element is cast in the casting and thus embedded. A replacement or replacement of the information element would make it necessary to selectively melt at least a portion of the casting in order to get to the information element embedded therein. However, such a melting is very expensive, so that this is usually not worth it for economic reasons and counterfeiting attempts are uninteresting.
  • a third advantage of the method according to the invention is that during the casting of Gusstei ⁇ les a casting temperature above the Curie temperature of the magnetizable material of the information element is set ⁇ is.
  • the magnetizable material loses its magnetic properties due to this high temperature, so that the stored or stored in the magnetizable material information without a subsequent subsequent Magneti ⁇ tion of the information element are unreadable.
  • a for unauthorized ⁇ ter third party would therefore have to be able to access the information element, first know that in fact an information element is included where this exactly did the ⁇ charged and also that first a "re-magnetization rung" of the information element necessary is to allow a readout of the information contained therein.
  • the information can be stored by recesses, in particular depressions or holes, being introduced into the magnetizable material or magnetisable material being removed in a location-dependent manner.
  • a kind of punched card structure is introduced in the magnetizable material, in which logical ones and logical zeroes are deposited by a hole coding.
  • Such Lochcodie ⁇ tion can be made to, for example, by drilling holes or wells in the magnetizable material ⁇ .
  • the holes or depressions can be formed by a conventional drilling process with a drill, by laser material removal or by a chemical or electrochemical ⁇ t ⁇ zen.
  • the hole pattern is configured in two dimensions, and forms a two dimensional matrix ⁇ .
  • the recesses or holes can be filled, for example, with a non-magnetizable material in order to bring about the greatest possible difference between the magnetic properties of the magnetizable material and the region of the recesses or holes.
  • storing the information in the information element can also be effected in that at least two mate rials ⁇ ⁇ which areas of the information element to form a Co- dation be arranged with different magnetization in various.
  • no holes or recesses must be formed within the magnetizable material, but instead two different materials are used from the outset and arranged locally differently, to - preferably in the context of a matrix - to form a coding and the information store.
  • the information is stored within the binary information element before ⁇ preferably to allow a trouble-free and reliable as possible readout.
  • the magneti ⁇ matable material is preferably divided into at least two sections, namely below into a first portion in which an encryption key is stored which is required for decrypting a payload, and a second portion in which at least the payload Use of the encryption key is stored encrypted.
  • both the first section and The second section may also be configured in two-dimensional matrix form.
  • the invention also relates to a casting, in particular a metal casting, with an information element carrying at least one information.
  • FIG. 1 shows an exemplary embodiment of an information element which is suitable for pouring into a cast part
  • FIG. 2 shows an exemplary embodiment of a finished cast part, in which the information element according to FIG.
  • Figure 1 is poured.
  • FIG. 1 shows an information element 5 with a magnetizable material 10 in the form of a magnetizable ceramic plate 20, which is subdivided into two sections 30 and 40.
  • a coding key 50 in the form of a hole structure 60 is deposited.
  • the hole structure 60 is designed two-dimensionally and forms a matrix in order to achieve a minimum space requirement or a maximum information density.
  • a payload 70 in the form of another hole structure 80 is deposited, but which is encrypted.
  • the further complementary coding key is not contained in the magnetizable material 10 and is also not stored in the information element; it is single ⁇ Lich known to the manufacturer of the information element, the secret holding these and makes accessible only to the persons belonging to a readout of the payload 70 from the second Section 40 should be entitled.
  • the coding key 50 and the other not included in the information element Co ⁇ decoding key preferably form a key pair, wherein the further encryption key from the encryption key 50 is not available, as is well known in the field of encryption technology.
  • the hole structure 60 and the further hole structure 80 are preferably formed by recesses or holes 90 are introduced into the magnetizable material 10.
  • the off ⁇ recesses or holes 10 can be formed by drilling, Lasermaterialabtrag or by a chemical or electro-chemical etching in the ceramic plate 20 and thus in the magnetizable Ma ⁇ TERIAL.
  • the information formed by the two hole structures is captively written in the magnetizable material 10, irrespective of whether the magnetizable material 10 is magnetized or unmagnetized is. If, in the course of further processing, the information element is exposed to a temperature which is above the Curie temperature of the magnetizable material 10, any magnetization of the magnetizable material 10 which may already be present will indeed be lost, but the information itself remains mechanically in the form of the two Hole structures 60 and 80 fixed captive.
  • the ceramic plate 20 may, for example, in the context of a
  • Sandwich structure between two other dielectric ceramic plates are embedded in order to protect them during the casting process in front of the liquid casting material.
  • the two further ceramic plates are not shown in the figure 1 for the sake of clarity.
  • FIG. 2 shows a casting 100 in the form of a turbine blade with an airfoil 102 and a foot 103 in a three-dimensional representation.
  • the information element 5 is cast according to Figure 1 at a pre ⁇ given point 110.
  • the information element 5 is cast in the blade 102, or, alternatively, it may also be cast in the base 103, which may be preferable in individual cases for stability reasons.
  • the information element 5 is located within the cast part 100 and thus can not be directly recognized from the outside. Since a temperature which is above the Curie temperature of the magnetizable material 10 of the information element 5 is used during the production of the casting 100, neither the useful information 70 nor the coding key 50 can be read directly from the outside.
  • the information element 5 located in the casting 100 is very difficult to read out or distorted by unauthorized persons, since it is not directly accessible from the outside and an additional coding key is required to understand the information contained therein, which is not known to unauthorized persons is.
  • readout of the hole structures 60 and 80 can take place magnetically by means of a magnetic head reader or the like;
  • an electrical eddy current method in which eddy currents are generated in the magnetizable material 10 in a targeted manner, which in turn lead to magnetic fields and enable reading of both the coding key 50 and the useful information 70.
  • the information element 5 can also be equipped with a "normal" ferrite layer forming the magnetic material 10 of the infor ⁇ mationselements. 5
  • the information element is 5 high tempe ⁇ raturbestteil, since a loss of information only then occurring can occur when temperatures above the melting temperature of the magnetizable material 10 are reached or exceeded and the hole structures 60 and 80 disappear by melting. As long as the melting temperature is not reached, the stored information remains available and readable even when the Curie temperature of the magnetizable material is exceeded and the magnetizable material 10 as such becomes non-magnetic; because by a simple Nachmagnet electrode or re-magnetization, which can be carried out easily for example by the application of a magnetic field from the outside, a readout of the two hole structures 60 and 80 can be made possible again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Credit Cards Or The Like (AREA)
  • Powder Metallurgy (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne entre autres un procédé permettant de produire une pièce moulée (100), notamment une pièce moulée en métal, munie d'un élément d'information (5) portant au moins une information. Selon l'invention, il est prévu que ledit élément d'information (5) soit produit avec un matériau (10) magnétisable et que l'information soit mémorisée dans le matériau magnétisable et que l'élément d'information soit coulé dans la pièce moulée lors du moulage de la pièce moulée. Il est prévu d'utiliser une température de moulage supérieure à la température de Curie du matériau magnétisable de l'élément d'information.
EP07730250.3A 2006-06-27 2007-06-19 Procédé de production d'une pièce moulée Not-in-force EP2033143B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610030365 DE102006030365B3 (de) 2006-06-27 2006-06-27 Verfahren zum Herstellen eines Gussteiles
PCT/EP2007/056084 WO2008000660A1 (fr) 2006-06-27 2007-06-19 Procédé de production d'une pièce moulée

Publications (2)

Publication Number Publication Date
EP2033143A1 true EP2033143A1 (fr) 2009-03-11
EP2033143B1 EP2033143B1 (fr) 2013-07-31

Family

ID=38420641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730250.3A Not-in-force EP2033143B1 (fr) 2006-06-27 2007-06-19 Procédé de production d'une pièce moulée

Country Status (4)

Country Link
US (1) US8846216B2 (fr)
EP (1) EP2033143B1 (fr)
DE (1) DE102006030365B3 (fr)
WO (1) WO2008000660A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009043597A1 (de) 2009-09-25 2011-04-07 Siemens Aktiengesellschaft Verfahren zum Herstellen eines markierten Gegenstandes
DE102009048665A1 (de) 2009-09-28 2011-03-31 Siemens Aktiengesellschaft Turbinenschaufel und Verfahren zu deren Herstellung
DE102010049443A1 (de) * 2010-10-23 2012-04-26 Mtu Aero Engines Gmbh Bauteil, insbesondere Triebwerkskomponente, mit einem Zuordnungsmerkmal sowie Verfahren
DE102011080187A1 (de) 2011-08-01 2013-02-07 Siemens Aktiengesellschaft Verfahren zum Erzeugen einer Schaufel für eine Strömungskraftmaschine und Schaufel für eine Strömungskraftmaschine
DE102015102308A1 (de) * 2015-02-18 2016-08-18 Nemak, S.A.B. De C.V. Verfahren zum Kennzeichnen eines Gussteils
DE102015009321A1 (de) * 2015-07-17 2017-01-19 Man Diesel & Turbo Se Fluidenergiemaschinenbauteil und Verfahren zum Herstellen desselben
US20170100862A1 (en) 2015-10-09 2017-04-13 Lexmark International, Inc. Injection-Molded Physical Unclonable Function
CN113510234B (zh) * 2021-09-14 2022-01-07 深圳市信润富联数字科技有限公司 轮毂低压铸造的质量监控方法、装置及电子设备

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FR2376476A1 (fr) * 1976-12-30 1978-07-28 Calider Caracteres pour le marquage de lingots, et procede de marquage utilisant de tels caracteres
FI906287A7 (fi) * 1990-12-19 1992-06-20 Leinovalu Oy Maerkning av ett gjutstycke.
CH683073A5 (de) * 1991-02-28 1994-01-14 Branko Hribovsek Dr Alexa Miha Verfahren und Informationsträger zur Kennzeichnung von Gussstücken.
JPH10154218A (ja) 1996-09-30 1998-06-09 Oji Paper Co Ltd 磁気記録媒体、磁気記録媒体の製造方法、磁気記録媒体の使用方法、磁気記録方法および磁気記録再生方法
DE19925674B4 (de) * 1999-06-04 2007-07-05 Grohe Ag Kennzeichnung von Gußteilen
US6189413B1 (en) * 1999-07-12 2001-02-20 American Axle & Manufacturing, Inc. Captive molding with dissimilar material insert
US6582197B2 (en) * 2001-02-22 2003-06-24 Simon E. Coulson Method of investment casting with casting identification
GB0220907D0 (en) * 2002-09-10 2002-10-16 Ingenia Holdings Ltd Security device and system
US7865722B2 (en) * 2003-07-22 2011-01-04 Agency For Science, Technology And Research Method of identifying an object and a tag carrying identification information
US20060024531A1 (en) * 2004-07-27 2006-02-02 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium and method for manufacturing same, and method for recording and reproducing with magnetic recording medium
EP1675040A1 (fr) 2004-12-23 2006-06-28 Siemens Aktiengesellschaft Composant et marqueur d'identification de ce composant.
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Also Published As

Publication number Publication date
EP2033143B1 (fr) 2013-07-31
DE102006030365B3 (de) 2007-12-06
US8846216B2 (en) 2014-09-30
WO2008000660A1 (fr) 2008-01-03
US20100035084A1 (en) 2010-02-11

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