DE2000139C3 - Vorrichtung zum Hochfrequenzverschweißen von PVC-Schaum mit siebartig durchbrochenen Materialien - Google Patents

Vorrichtung zum Hochfrequenzverschweißen von PVC-Schaum mit siebartig durchbrochenen Materialien

Info

Publication number
DE2000139C3
DE2000139C3 DE2000139A DE2000139A DE2000139C3 DE 2000139 C3 DE2000139 C3 DE 2000139C3 DE 2000139 A DE2000139 A DE 2000139A DE 2000139 A DE2000139 A DE 2000139A DE 2000139 C3 DE2000139 C3 DE 2000139C3
Authority
DE
Germany
Prior art keywords
sieve
pvc foam
frequency welding
perforated
insulating layer
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.)
Expired
Application number
DE2000139A
Other languages
English (en)
Other versions
DE2000139B2 (de
DE2000139A1 (de
Inventor
Theo 5210 Troisdorf Hillers
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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
Priority claimed from DE1928662A external-priority patent/DE1928662C3/de
Application filed by Dynamit Nobel AG filed Critical Dynamit Nobel AG
Priority to DE2000139A priority Critical patent/DE2000139C3/de
Priority to FR7047447A priority patent/FR2075147A6/fr
Priority to IT55750/70A priority patent/IT954107B/it
Priority to GB14671A priority patent/GB1332834A/en
Priority to US103446A priority patent/US3684640A/en
Publication of DE2000139A1 publication Critical patent/DE2000139A1/de
Publication of DE2000139B2 publication Critical patent/DE2000139B2/de
Application granted granted Critical
Publication of DE2000139C3 publication Critical patent/DE2000139C3/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
    • B29C37/0082—Mechanical anchoring
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30321—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined making use of protusions belonging to at least one of the parts to be joined
    • 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
    • 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3034—Particular design of joint configurations the joint involving an anchoring effect making use of additional elements, e.g. meshes
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/436—Joining sheets for making articles comprising cushioning or padding materials, the weld being performed through the cushioning material, e.g. car seats
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/727—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 structure of the material of the parts to be joined being porous, e.g. foam
    • 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
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29K2313/00—Use of textile products or fabrics as reinforcement
    • 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.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • 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.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Das Hauptpatent 19 28 662 befaßt sich mit einisr Vorrichtung zum Hochfrequenzverschweißen von PVC-Schaum mit siebartig durchbrochenen Materialien wie Trikot, Nessel, perforierte Folie od. dgl, zwischen relativ zueinander bewegbaren Elektroden, wobei wenigstens die auf der Seite des siebartig durchbrechenen Materials befindliche Elektrode mit einer Isolierschicht versehen ist, die an ihrer dem Schweißgiul zugekehrten Seite mit zahlreichen verhältnismäßigkleinen Erhebungen und/odtr Vertiefungen versehen. ist Damit wird erreicht, daß C ;r während des. Schweißvorganges durch den HF-Strom erwärmte undi in plastischen Zustand versetzte PVC-Schaum durch das. siebartig durchbrochene Material hindurch zwischen die Erhebungen bzw. Vertiefungen eindringt und sich nach Abkühlen mit dem Gewebe mechanisch verankert
Die vorliegende Erfindung befaßt sich mit der Weiterbildung der Isolierschicht, wie sie im Hauptpatent erwähnt ist, für das HF-Verschweißen von Kunststoffschaum, insbesondere PVC-Schaum, bzw. von mit PVC oder MP getränkten Schäumen, Vliesen oder Matten mit siebartig durchbrochenen Materialien wie Trikot, Nessel, textile Stoffe, perforierte Kunststc-!folien od. dgl. Erfindungsgemäß ist die Isolierschicht an ihrer dem Schweißgut zugekehrten Seite mit Sacklöcher versehen. Diese sind vorzugsweise so ausgebildet, daß die verbleibende Oberfläche nach Art einer Drahtgewebestruktur gestaltet ist
Die Erfindung ist in der Zeichnung in Ausführungsbeispielen gezeigt und wird anhand dieser im folgenden erläutert Es zeigt
F i g. 1 im Querschnitt eine mit einer Drahtgewebestruktur ausgebildete Isolierstoffunterlage,
F i g. 2 in entsprechender Weise eine mit Sacklöchern versehene Isolierstoffunterlage.
Gemäß F i g. 1 ist die Isolierstoffunterlage mit den Erhebungen 1 bzw. den Vertiefungen 2 versehen. Wie gezeigt können sich diese Erhebungen bzw. Vertiefungen in Blickrichtung bis auf die mittlere Höhe 3 erniedrigen bzw. erhöhen. Anstelle dessen könnten sich die Erhebungen 1 in Blickrichtung aber auch bis zum Grund der Vertiefungen 2 erniedrigen bzw. könnten sich die Vertiefungen 2 bis zur Höhe der Erhebungen 1 erhöhen. Ebenso könnten beliebige Zwischenwerte in der einen oder anderen Weise gewählt werden.
Nach Fig.2 ist die Isolierstoffunterlage an ihrer einen Seite mit den Sacklöchern 4 versehen, wobei diese selbstverständlich jegliche Querschnittsform aufweisen können und darüber hinausgehend selbstverständlich auch nicht mit dem planen Boden 5 ausgebildet sein müssen, sondern im Längsschnitt betrachtet jedwede andere Form aufweisen können.
Hierzu 1 Blatt Zeichnungen

Claims (2)

20 OO Patentansprüche:
1. Vorrichtung zum Hochfrequenzverschweißein von PVC-Schaum mit siebartig durchbrochenen Materialien wie Trikot, Nessel, perforierte Folie oddgL, zwischen relativ zueinander bewegbaren Elektroden, wobei wenigstens die auf der Seite des siebartig durchbrochenen Materials befindliche Elektrode mit einer Isolierschicht versehen ist, die an ι ο ihrer dem Schweißgut zugekehrten Seite miil zahlreichen verhältnismäßig kleinen Erhebungen und/oder Vertiefungen versehen ist, nach Hauptpatent 1928622, dadurch gekennzeichnet, daß die Isolierschicht an ihrer dem Schweißgmt zugekehrten Seite mit Sacklöchern (4) versehen ist
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Sacklöcher so ausgebildet sind, daß· die verbleibende Oberfläche nach Art einer Draitgewebestmkisr gestaltet ist
20
DE2000139A 1969-06-06 1970-01-02 Vorrichtung zum Hochfrequenzverschweißen von PVC-Schaum mit siebartig durchbrochenen Materialien Expired DE2000139C3 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2000139A DE2000139C3 (de) 1969-06-06 1970-01-02 Vorrichtung zum Hochfrequenzverschweißen von PVC-Schaum mit siebartig durchbrochenen Materialien
FR7047447A FR2075147A6 (de) 1970-01-02 1970-12-31
IT55750/70A IT954107B (it) 1970-01-02 1970-12-31 Base di materiale isolante per la saldatura ad alta frequenza
GB14671A GB1332834A (en) 1970-01-02 1971-01-01 High frequency welding of foam fleece or wadding
US103446A US3684640A (en) 1969-06-06 1971-01-04 Insulating substrate for highfrequency welding

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1928662A DE1928662C3 (de) 1969-06-06 1969-06-06 Vorrichtung zum HF-Verschweißen von PVC-Schaum mit siebartig durchbrochenen Materialen
DE2000139A DE2000139C3 (de) 1969-06-06 1970-01-02 Vorrichtung zum Hochfrequenzverschweißen von PVC-Schaum mit siebartig durchbrochenen Materialien

Publications (3)

Publication Number Publication Date
DE2000139A1 DE2000139A1 (de) 1971-07-08
DE2000139B2 DE2000139B2 (de) 1978-10-26
DE2000139C3 true DE2000139C3 (de) 1979-06-28

Family

ID=25757456

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000139A Expired DE2000139C3 (de) 1969-06-06 1970-01-02 Vorrichtung zum Hochfrequenzverschweißen von PVC-Schaum mit siebartig durchbrochenen Materialien

Country Status (2)

Country Link
US (1) US3684640A (de)
DE (1) DE2000139C3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1296301A (de) * 1972-08-31 1972-11-15
DE2319593B2 (de) * 1973-04-18 1976-09-23 Becker & van Hüllen Niederrheinische Maschinenfabrik, 4150 Krefeld Presspolster fuer heizplattenpressen
DE3936324A1 (de) * 1989-10-27 1990-12-06 Alfred Schwalbach Gmbh Verfahren und maschine zum hochfrequenzschweissen von polyolefinen

Also Published As

Publication number Publication date
DE2000139B2 (de) 1978-10-26
US3684640A (en) 1972-08-15
DE2000139A1 (de) 1971-07-08

Similar Documents

Publication Publication Date Title
DE1928662C3 (de) Vorrichtung zum HF-Verschweißen von PVC-Schaum mit siebartig durchbrochenen Materialen
DE1504908B1 (de) Folie zum herstellen eines offenen netzes
DE1640468A1 (de) Elektrische Verbindung an den Kreuzungspunkten von an gegenueberliegenden Seiten von Schaltkarten verlaufenden Leiterstreifen
DE2710908C3 (de) Verfahren zur Herstellung einer Metall/Kunststoff-Verbundelektrode
DE2818615A1 (de) Verfahren zur herstellung von asbest- zementlaminatplatten
DE2000139C3 (de) Vorrichtung zum Hochfrequenzverschweißen von PVC-Schaum mit siebartig durchbrochenen Materialien
DE1540940A1 (de) Heizscheibe und Verfahren zur Herstellung derselben
AT237717B (de) Leiterplatte und Verfahren zu ihrer Herstellung
DE2223083A1 (de) Elektrodenplatte fuer Batteriezellen und Verfahren zur Herstellung
DE2716341C2 (de) Haftunterlage zur Befestigung einer orthodonten Vorrichtung an einem Zahn und Verfahren zur Herstellung einer solchen Unterlage
DE3620192C2 (de)
DE597907C (de) Verfahren zur Herstellung von Loechern mit verstaerktem Rande in eisernen Schwellen
EP0434892A2 (de) Verfahren zum Prägen von Textilien
DE866372C (de) Anordnung zur Verschweissung thermoplastischer Folien
DE587282C (de) Verteilungsgebilde fuer den Absorber eines Absorptionskaelteapparates
DE2535643C3 (de) Vorrichtung zur Zuführung der Prefiwärme zu Preßgutmatten bei der Herstellung von Spanplatten und von Faserplatten
DE891736C (de) Verfahren und Einrichtung zum Schneiden von in der Waerme plastischem Gut, z. B. Rohkautschuk oder organischen Kunststoffen
DE1140338B (de) Verfahren zur Herstellung einer durch Nachpressen in der Waerme profilierten Fussbodenmatte
DE2757821C3 (de) Verfahren zur Herstellung einer Mesa-Halbleiteranordnung mit Druckkontakt
DE2347766A1 (de) Heizelement
DE1685170C3 (de) Verfahren zur Herstellung hochfrequenzgeschweißter Polsterungen o.dgl. und Vorrichtung zur Durchführung des Verfahrens
DE1903799B2 (de) Biegsames elektrisches flaechenheizelement
DE1259430B (de) Verfahren zur Herstellung gedruckter Schaltungen durch Auflegen einer Metallfolie auf eine elastische Unterlage
AT227511B (de) Verfahren zur Vergrößerung der effektiven Dicke, der Querelastizität und der Oberfläche von Blechmaterial
DE567559C (de) Verfahren zur Herstellung von durchbrochenen, plattenfoermigen Elektroden fuer Elektronenroehren

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8340 Patent of addition ceased/non-payment of fee of main patent