DE102008054631A1 - Measuring element manufacturing method for use in e.g. temperature sensor, involves removing plastic film from functional layer after removing injection molding part that is present in injection molding tool - Google Patents
Measuring element manufacturing method for use in e.g. temperature sensor, involves removing plastic film from functional layer after removing injection molding part that is present in injection molding tool Download PDFInfo
- Publication number
- DE102008054631A1 DE102008054631A1 DE200810054631 DE102008054631A DE102008054631A1 DE 102008054631 A1 DE102008054631 A1 DE 102008054631A1 DE 200810054631 DE200810054631 DE 200810054631 DE 102008054631 A DE102008054631 A DE 102008054631A DE 102008054631 A1 DE102008054631 A1 DE 102008054631A1
- Authority
- DE
- Germany
- Prior art keywords
- plastic film
- functional layer
- injection molding
- ceramic body
- injection
- 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.)
- Withdrawn
Links
- 239000002346 layers by function Substances 0.000 title claims abstract description 44
- 239000002985 plastic film Substances 0.000 title claims abstract description 41
- 229920006255 plastic film Polymers 0.000 title claims abstract description 41
- 238000001746 injection moulding Methods 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- 238000005245 sintering Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims 2
- 239000011796 hollow space material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 18
- 239000011888 foil Substances 0.000 description 7
- 239000007784 solid electrolyte Substances 0.000 description 7
- 239000004020 conductor Substances 0.000 description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000007650 screen-printing Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 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
- 230000006978 adaptation Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004413 injection moulding compound Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 oxygen ion Chemical class 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/4067—Means for heating or controlling the temperature of the solid electrolyte
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4071—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einem Verfahren zur Herstellung eines Messelements nach dem Oberbegriff des Anspruchs 1. Solche Messelemente werden z. B. in Gasmessfühlern, wie Lambda-, Stickoxidsonden, Temperaturmessfühler und dgl. eingesetzt.The The invention is based on a method for producing a measuring element according to the preamble of claim 1. Such measuring elements are z. B. in gas sensors, such as lambda, nitric oxide, Temperature sensor and the like. Used.
Bei
einem bekannten Mess- oder Sensorelement dieser Art (
Bei
einem bekannten, als sog. Fingersonde ausgebildeten Gassensor oder
elektrochemischen Messfühler für die Bestimmung
des Sauerstoffgehalts im Abgas von Brennkraftmaschinen (
Offenbarung der ErfindungDisclosure of the invention
Das erfindungsgemäße Verfahren mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass die Herstellung der Funktionsschichten mit in den Spritzgießprozeß des Keramikkörpers einbezogen ist und nachfolgende Prozesse, wie Aufdrucken auf den Keramikkörper und Trocknen entfallen. Durch die integrierte Herstellung von Keramikkörper und Funktionsschichten können damit Fertigungsschritte eingespart und die Fertigungskosten gesenkt werden. Das erfindungsgemäße Verfahren erlaubt Funktionsschichten auch an komplex geformten Keramikkörpern anzubringen, sodass Messelemente mit solch formmäßig gestalteten Keramikkörpern hergestellt werden können, die sich nicht einfach oder nicht genau genug bedrucken lassen, oder bei denen die Gefahr besteht, dass sie beim Bedrucken mit den Funktionsschichten beschädigt werden. Dies trifft insbesondere auf dünnwandige, hohle Keramikkörper für sog. Fingersonden zu, aber auch auf Keramikkörper mit gewölbten oder beliebig gerundeten Oberflächen. Durch einfache Anpassung der Materialien von Funktionsschicht und Spritzgußmasse ist eine dauerhafte Haftung der Funktionsschichten am Keramikkörper gewährleistet.The inventive method with the features of Claim 1 has the advantage that the production of the functional layers with in the injection molding of the ceramic body is involved and subsequent processes, such as printing on the Ceramic body and drying omitted. By the integrated Production of ceramic body and functional layers can thus saving manufacturing steps and reducing production costs become. The inventive method allows Functional layers also on complex shaped ceramic bodies to attach, so measuring elements with such a shape designed ceramic bodies can be produced, that can not be easily or accurately printed, or where there is a risk that they will interfere with printing Functional layers are damaged. This is especially true on thin-walled, hollow ceramic body for so-called. Finger probes too, but also on ceramic body with arched or any rounded surfaces. By simple adaptation the materials of functional layer and injection molding compound a permanent adhesion of the functional layers is ensured on the ceramic body.
Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Herstellungsverfahrens möglich.By the measures listed in the further claims are advantageous developments and improvements of the claim 1 specified manufacturing process possible.
Gemäß einer vorteilhaften Ausführungsform der Erfindung wird das Entfernen der Kunststofffolie je nach Dicke der verwendeten Kunststofffolie durch Abziehen oder durch Entfernen mittels eines thermischen Entbinderprozesses vorgenommen. Im letzteren Fall wird dies zusammen mit dem Sintern des der Spritzgußform entnommen Spritzgußteils bewirkt.According to one advantageous embodiment of the invention, the removal the plastic film depending on the thickness of the plastic film used by peeling or removal by means of a thermal debinding process performed. In the latter case, this will be along with the sintering of the injection mold taken injection molding causes.
Gemäß einer vorteilhaften Ausführungsform der Erfindung wird mindestens eine mit mindestens einer Funktionsschicht belegte Kunststofffolie auf eine Hohlraumwand eines die Form des Keramikkörpers vorgebenden Hohlraums im Spritzwerkzeug so aufgelegt, dass ihre von der mindestens einen Funktionsschicht abgekehrten Folienfläche auf der Hohlraumwand aufliegt. Mindestens eine weitere Kunststofffolie wird mit mindestens einer weiteren Funktionsschicht versehen und diese auf einen in den Hohlraum einsetzbaren Kern so aufgelegt, dass ihre von der mindestens einen Funktionsschicht abgekehrte Folienfläche auf dem Kern aufliegt. Mit diesen Verfahrensschritten lassen sich z. B. hohle Keramikkörper mit außen auf dem Keramikkörper und innen im Keramikkörper angeordneten Funktionsschichten, die z. B. bei sog. Fingersonden Anwendung finden, in vorteilhafter Weise herstellen.According to an advantageous embodiment of the invention, at least one plastic film coated with at least one functional layer is placed on a cavity wall of a cavity in the injection mold that predetermines the shape of the ceramic body such that its foil surface facing away from the at least one functional layer rests on the cavity wall. At least one further plastic film is provided with at least one further functional layer and it is placed on a core that can be inserted into the cavity in such a way that its foil surface facing away from the at least one functional layer rests on the core. With these steps can be z. B. hollow Keramikkör per with on the outside of the ceramic body and inside the ceramic body arranged functional layers z. B. in so-called. Finger probes application, produce in an advantageous manner.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Erfindung ist anhand von in den Zeichnungen illustrierten Ausführungsbeispielen in der nachfolgenden Beschreibung näher erläutert. Es zeigen jeweils in schematisierter Darstellung:The Invention is based on illustrated in the drawings embodiments explained in more detail in the following description. Shown schematically in each case:
Bei
dem in
Auf
die entsprechend zugeschnittene Kunststofffolie
Die
so beschichtete Kunststofffolie
Das
in
Auf
eine entsprechend zugeschnittene, flexible zweite Kunststofffolie
Nach
formschlüssiger Zusammensetzung der beiden Formteile
Zum
Entformen des im Spritzwerkzeug
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19937163 A1 [0002] - DE 19937163 A1 [0002]
- - DE 2326086 A1 [0003] - DE 2326086 A1 [0003]
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810054631 DE102008054631A1 (en) | 2008-12-15 | 2008-12-15 | Measuring element manufacturing method for use in e.g. temperature sensor, involves removing plastic film from functional layer after removing injection molding part that is present in injection molding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810054631 DE102008054631A1 (en) | 2008-12-15 | 2008-12-15 | Measuring element manufacturing method for use in e.g. temperature sensor, involves removing plastic film from functional layer after removing injection molding part that is present in injection molding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102008054631A1 true DE102008054631A1 (en) | 2010-06-24 |
Family
ID=42193896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200810054631 Withdrawn DE102008054631A1 (en) | 2008-12-15 | 2008-12-15 | Measuring element manufacturing method for use in e.g. temperature sensor, involves removing plastic film from functional layer after removing injection molding part that is present in injection molding tool |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102008054631A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011078123A1 (en) | 2011-06-27 | 2012-12-27 | Robert Bosch Gmbh | Method for producing oxygen sensor element in automotive field to detect e.g. temperature of gas for detection of nitrogen oxide in gas, involves arranging functional element at side of blank, sintering blank, and forming molded body |
| DE102011080526A1 (en) | 2011-08-05 | 2013-02-07 | Robert Bosch Gmbh | Method for producing ceramic functional component for sensor for detecting property e.g. gas component in gas, involves arranging roller and sheet element in mold cavity and introducing ceramic material in the mold cavity |
| CN103922753A (en) * | 2013-01-11 | 2014-07-16 | 罗伯特·博世有限公司 | Method for producing a receptacle for a sensor element |
| DE102013200285A1 (en) | 2013-01-11 | 2014-07-17 | Robert Bosch Gmbh | Ceramic mass and ceramic injection molding process |
| DE102013215735A1 (en) * | 2013-08-09 | 2015-03-19 | Volkswagen Aktiengesellschaft | Process for producing multilayer green bodies for ceramic components |
| WO2016071022A1 (en) * | 2014-11-04 | 2016-05-12 | Robert Bosch Gmbh | Sensor element for determining at least one property of a measuring gas in a measuring gas chamber, and method for the production thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2326086A1 (en) | 1973-05-23 | 1974-12-12 | Bosch Gmbh Robert | ELECTROCHEMICAL SENSOR FOR DETERMINING THE OXYGEN CONTENT IN EXHAUST GASES, IN PARTICULAR IN EXHAUST GASES FROM COMBUSTION ENGINES |
| DE19937163A1 (en) | 1999-08-06 | 2001-02-08 | Bosch Gmbh Robert | Screen-printing paste used to make flat ceramic components for lambda sensors used especially in vehicles, includes magnesium titanate or its mixture with spinel, forsterite or magnesia |
-
2008
- 2008-12-15 DE DE200810054631 patent/DE102008054631A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2326086A1 (en) | 1973-05-23 | 1974-12-12 | Bosch Gmbh Robert | ELECTROCHEMICAL SENSOR FOR DETERMINING THE OXYGEN CONTENT IN EXHAUST GASES, IN PARTICULAR IN EXHAUST GASES FROM COMBUSTION ENGINES |
| DE19937163A1 (en) | 1999-08-06 | 2001-02-08 | Bosch Gmbh Robert | Screen-printing paste used to make flat ceramic components for lambda sensors used especially in vehicles, includes magnesium titanate or its mixture with spinel, forsterite or magnesia |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011078123A1 (en) | 2011-06-27 | 2012-12-27 | Robert Bosch Gmbh | Method for producing oxygen sensor element in automotive field to detect e.g. temperature of gas for detection of nitrogen oxide in gas, involves arranging functional element at side of blank, sintering blank, and forming molded body |
| DE102011080526A1 (en) | 2011-08-05 | 2013-02-07 | Robert Bosch Gmbh | Method for producing ceramic functional component for sensor for detecting property e.g. gas component in gas, involves arranging roller and sheet element in mold cavity and introducing ceramic material in the mold cavity |
| CN103922753A (en) * | 2013-01-11 | 2014-07-16 | 罗伯特·博世有限公司 | Method for producing a receptacle for a sensor element |
| DE102013200285A1 (en) | 2013-01-11 | 2014-07-17 | Robert Bosch Gmbh | Ceramic mass and ceramic injection molding process |
| US20140196944A1 (en) * | 2013-01-11 | 2014-07-17 | Robert Bosch Gmbh | Method for producing a receptacle for a sensor element |
| US9381670B2 (en) | 2013-01-11 | 2016-07-05 | Robert Bosch Gmbh | Ceramic composition and ceramic injection-molding process |
| US9877396B2 (en) * | 2013-01-11 | 2018-01-23 | Robert Bosch Gmbh | Method for producing a receptacle for a sensor element |
| CN103922753B (en) * | 2013-01-11 | 2018-05-22 | 罗伯特·博世有限公司 | The method that manufacture is used for the receiver of sensing element |
| DE102013200285B4 (en) | 2013-01-11 | 2021-11-04 | Robert Bosch Gmbh | Ceramic mass, its use and ceramic injection molding process |
| DE102013215735A1 (en) * | 2013-08-09 | 2015-03-19 | Volkswagen Aktiengesellschaft | Process for producing multilayer green bodies for ceramic components |
| DE102013215735B4 (en) * | 2013-08-09 | 2021-04-29 | Volkswagen Aktiengesellschaft | Process for the production of multi-layer green bodies for ceramic components |
| WO2016071022A1 (en) * | 2014-11-04 | 2016-05-12 | Robert Bosch Gmbh | Sensor element for determining at least one property of a measuring gas in a measuring gas chamber, and method for the production thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R012 | Request for examination validly filed | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |