AT345542B - Verfahren und pressform zur herstellung von gewoelbten membranen aus polytetrafluoraethylen - Google Patents

Verfahren und pressform zur herstellung von gewoelbten membranen aus polytetrafluoraethylen

Info

Publication number
AT345542B
AT345542B AT946772A AT946772A AT345542B AT 345542 B AT345542 B AT 345542B AT 946772 A AT946772 A AT 946772A AT 946772 A AT946772 A AT 946772A AT 345542 B AT345542 B AT 345542B
Authority
AT
Austria
Prior art keywords
polytetrafluoraethylene
press form
manufacturing curved
curved membranes
membranes
Prior art date
Application number
AT946772A
Other languages
English (en)
Other versions
ATA946772A (de
Inventor
Erhard Walter
Helmut Jung
Martin Bischof
Edgar Kroitzsch
Anina Bruntsch
Original Assignee
Hermsdorf Keramik Veb
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 Hermsdorf Keramik Veb filed Critical Hermsdorf Keramik Veb
Publication of ATA946772A publication Critical patent/ATA946772A/de
Application granted granted Critical
Publication of AT345542B publication Critical patent/AT345542B/de

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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/006—Pressing and sintering powders, granules or fibres
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • 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
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • 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
    • B29K2105/25—Solid
    • B29K2105/251—Particles, powder or granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/755—Membranes, diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
AT946772A 1971-12-08 1972-11-07 Verfahren und pressform zur herstellung von gewoelbten membranen aus polytetrafluoraethylen AT345542B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15943471A DD98238A1 (de) 1971-12-08 1971-12-08

Publications (2)

Publication Number Publication Date
ATA946772A ATA946772A (de) 1978-01-15
AT345542B true AT345542B (de) 1978-09-25

Family

ID=5484742

Family Applications (1)

Application Number Title Priority Date Filing Date
AT946772A AT345542B (de) 1971-12-08 1972-11-07 Verfahren und pressform zur herstellung von gewoelbten membranen aus polytetrafluoraethylen

Country Status (8)

Country Link
AT (1) AT345542B (de)
CH (1) CH546140A (de)
CS (1) CS167365B2 (de)
DD (1) DD98238A1 (de)
DE (1) DE2253589A1 (de)
HU (1) HU169343B (de)
PL (1) PL79147B1 (de)
RO (1) RO89298A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3008339B1 (fr) * 2013-07-15 2015-08-07 Commissariat Energie Atomique Procede de mise en forme d'une plaque en un polytetrafluoroethylene fritte et restructure et ses applications
DE102013216597B4 (de) * 2013-08-21 2019-02-14 Gemü Gebr. Müller Apparatebau Gmbh & Co. Kommanditgesellschaft Verfahren zur Herstellung eines Grünlings für eine Membran einer Ventileinrichtung sowie Vorrichtung zur Herstellung des Grünlings für eine Membran einer Ventileinrichtung
DE102013111722B3 (de) * 2013-10-24 2015-02-05 Pierburg Gmbh Aktor für Ventile in Verbrennungskraftmaschinen
DE102014222522A1 (de) 2014-11-05 2016-05-12 GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG Pressvorrichtung und Verfahren zum Betreiben derPressvorrichtung
BE1024586B1 (nl) * 2016-12-21 2018-04-12 Vanéflon Nv Werkwijze voor het vervaardigen van een polytetrafluorethyleen product en polytetrafluorethyleen product

Also Published As

Publication number Publication date
CH546140A (de) 1974-02-28
DD98238A1 (de) 1973-06-12
PL79147B1 (de) 1975-06-30
CS167365B2 (de) 1976-04-29
HU169343B (de) 1976-11-28
ATA946772A (de) 1978-01-15
DE2253589A1 (de) 1973-06-14
RO89298A2 (ro) 1986-06-30

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee