GB2328395B - Injection-compression moulding method - Google Patents

Injection-compression moulding method

Info

Publication number
GB2328395B
GB2328395B GB9815250A GB9815250A GB2328395B GB 2328395 B GB2328395 B GB 2328395B GB 9815250 A GB9815250 A GB 9815250A GB 9815250 A GB9815250 A GB 9815250A GB 2328395 B GB2328395 B GB 2328395B
Authority
GB
United Kingdom
Prior art keywords
injection
compression moulding
moulding method
compression
moulding
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 - Fee Related
Application number
GB9815250A
Other versions
GB9815250D0 (en
GB2328395A (en
Inventor
John Cameron
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.)
Kurt Mueller
Original Assignee
Kurt Mueller
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 Kurt Mueller filed Critical Kurt Mueller
Priority to GB9815250A priority Critical patent/GB2328395B/en
Publication of GB9815250D0 publication Critical patent/GB9815250D0/en
Publication of GB2328395A publication Critical patent/GB2328395A/en
Application granted granted Critical
Publication of GB2328395B publication Critical patent/GB2328395B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3411—Relieving stresses
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • 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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • 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
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • 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
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3418—Loud speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
    • H04R2231/001—Moulding aspects of diaphragm or surround
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
    • H04R2231/003—Manufacturing aspects of the outer suspension of loudspeaker or microphone diaphragms or of their connecting aspects to said diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB9815250A 1998-07-15 1998-07-15 Injection-compression moulding method Expired - Fee Related GB2328395B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9815250A GB2328395B (en) 1998-07-15 1998-07-15 Injection-compression moulding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9815250A GB2328395B (en) 1998-07-15 1998-07-15 Injection-compression moulding method

Publications (3)

Publication Number Publication Date
GB9815250D0 GB9815250D0 (en) 1998-09-09
GB2328395A GB2328395A (en) 1999-02-24
GB2328395B true GB2328395B (en) 2000-02-02

Family

ID=10835481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9815250A Expired - Fee Related GB2328395B (en) 1998-07-15 1998-07-15 Injection-compression moulding method

Country Status (1)

Country Link
GB (1) GB2328395B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2435008B (en) * 2001-01-29 2007-11-21 Tannoy Ltd Loudspeaker diaphragm and method of manufacture thereof
GB2367525A (en) * 2001-08-17 2002-04-10 Intersurgical Ltd Moulded anatomical mask
GB2410001A (en) * 2004-01-16 2005-07-20 Im Pak Technologies Ltd Injection compression moulding
GB2427378A (en) * 2005-06-17 2006-12-27 Metflex Prec Mouldings Ltd Moulding speaker cone constructions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232632A (en) * 1988-12-26 1990-12-19 Asahi Chemical Ind Method and apparatus for injection molding of hollow article
US5370518A (en) * 1992-01-29 1994-12-06 Kabushiki Kaisha Komatsu Seisakusho Apparatus for injection and compression molding
US5472334A (en) * 1993-03-23 1995-12-05 Seikoh Giken Co., Ltd. Injection molding die for injection-molding base boards

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232632A (en) * 1988-12-26 1990-12-19 Asahi Chemical Ind Method and apparatus for injection molding of hollow article
US5370518A (en) * 1992-01-29 1994-12-06 Kabushiki Kaisha Komatsu Seisakusho Apparatus for injection and compression molding
US5472334A (en) * 1993-03-23 1995-12-05 Seikoh Giken Co., Ltd. Injection molding die for injection-molding base boards

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WPI Abstract Accession No. 95-337980/199544 & DE 19510897 A (TOYODA) 28.09.95 (see abstract) *

Also Published As

Publication number Publication date
GB9815250D0 (en) 1998-09-09
GB2328395A (en) 1999-02-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020715