AT340129B - Process for the production of void-free and blister-free plastic molded parts - Google Patents

Process for the production of void-free and blister-free plastic molded parts

Info

Publication number
AT340129B
AT340129B AT287671A AT287671A AT340129B AT 340129 B AT340129 B AT 340129B AT 287671 A AT287671 A AT 287671A AT 287671 A AT287671 A AT 287671A AT 340129 B AT340129 B AT 340129B
Authority
AT
Austria
Prior art keywords
free
blister
void
production
molded parts
Prior art date
Application number
AT287671A
Other languages
German (de)
Other versions
ATA287671A (en
Original Assignee
Bayer 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
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of ATA287671A publication Critical patent/ATA287671A/en
Application granted granted Critical
Publication of AT340129B publication Critical patent/AT340129B/en

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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/40—Compensating volume change, e.g. retraction
    • B29C39/405—Compensating volume change, e.g. retraction by applying pressure to the casting composition
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C2045/465—Means for plasticising or homogenising the moulding material or forcing it into the mould using pumps for injecting the material into the mould
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/06—Unsaturated polyesters
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • 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
    • B29L2012/00—Frames
    • B29L2012/005—Spectacle frames

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Robotics (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Insulators (AREA)
AT287671A 1970-04-13 1971-04-05 Process for the production of void-free and blister-free plastic molded parts AT340129B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702017506 DE2017506B2 (en) 1970-04-13 1970-04-13 PROCESS FOR MANUFACTURING PLASTIC MOLDED PARTS FROM CAST RESIN COMPOSITES

Publications (2)

Publication Number Publication Date
ATA287671A ATA287671A (en) 1977-03-15
AT340129B true AT340129B (en) 1977-11-25

Family

ID=5767879

Family Applications (1)

Application Number Title Priority Date Filing Date
AT287671A AT340129B (en) 1970-04-13 1971-04-05 Process for the production of void-free and blister-free plastic molded parts

Country Status (7)

Country Link
AT (1) AT340129B (en)
BE (1) BE765647A (en)
CH (1) CH542710A (en)
DE (1) DE2017506B2 (en)
FR (1) FR2086036B1 (en)
GB (1) GB1352225A (en)
NL (1) NL7104802A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH509139A (en) * 1969-06-19 1971-06-30 Ciba Geigy Ag Process for the production of hardened plastic moldings
DE2748982C2 (en) * 1977-11-02 1987-10-01 Wilhelm Hedrich Vakuumanlagen GmbH und Co KG, 6332 Ehringshausen Arrangement for filling molds with resin or the like. pourable liquid media
DE3838921A1 (en) * 1988-01-30 1989-08-10 Toyoda Gosei Kk Intake elbow and process for its production
GB8806299D0 (en) * 1988-03-17 1988-04-13 Glynwed Consumer & Building Process of manufacturing thin-walled plastics moulding
DE19511062A1 (en) * 1995-03-25 1996-09-26 S & T Apparate Und Vorrichtung Device for the pressure casting of meltable plastic materials

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT234363B (en) * 1960-11-15 1964-06-25 Plast Anstalt Method and device for potting hardenable plastics
CH509139A (en) * 1969-06-19 1971-06-30 Ciba Geigy Ag Process for the production of hardened plastic moldings

Also Published As

Publication number Publication date
DE2017506B2 (en) 1977-12-01
FR2086036A1 (en) 1971-12-31
CH542710A (en) 1973-10-15
ATA287671A (en) 1977-03-15
FR2086036B1 (en) 1975-01-17
DE2017506A1 (en) 1971-10-28
GB1352225A (en) 1974-05-08
BE765647A (en) 1971-08-30
NL7104802A (en) 1971-10-15

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Legal Events

Date Code Title Description
ELA Expired due to lapse of time
ELJ Ceased due to non-payment of the annual fee