CA2017526A1 - Extrusion shaping method - Google Patents

Extrusion shaping method

Info

Publication number
CA2017526A1
CA2017526A1 CA 2017526 CA2017526A CA2017526A1 CA 2017526 A1 CA2017526 A1 CA 2017526A1 CA 2017526 CA2017526 CA 2017526 CA 2017526 A CA2017526 A CA 2017526A CA 2017526 A1 CA2017526 A1 CA 2017526A1
Authority
CA
Canada
Prior art keywords
profiled strip
predetermined shape
extrusion die
predetermined
polymeric material
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.)
Granted
Application number
CA 2017526
Other languages
French (fr)
Other versions
CA2017526C (en
Inventor
Donald Lawrence Franck
Lawrence David Zabel
Suresh Deepchand Shah
Manu K. Sheth
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of CA2017526A1 publication Critical patent/CA2017526A1/en
Application granted granted Critical
Publication of CA2017526C publication Critical patent/CA2017526C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • B29C43/06—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts
    • 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
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/28—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • 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
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • B29C2043/046—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds travelling between different stations, e.g. feeding, moulding, curing stations
    • 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
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3433—Feeding the material to the mould or the compression means using dispensing heads, e.g. extruders, placed over or apart from the moulds
    • 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
    • B29C43/44—Compression means for making articles of indefinite length
    • 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
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

AN EXTRUSION SHAPING METHOD

Abstract of the Disclosure A method of extruding a profiled strip of polymeric material off the extrusion die of a plastic extruder and immediately thereafter compression forming a predetermined section of the profiled strip into a predetermined shape when temperature of the polymeric material is sufficiently high to allow plastic flow in the profiled strip. The method including the steps of first extruding a profiled strip of polymeric material through the extrusion die and compression molding a predetermined section of the profiled strip into a predetermined shape at a close proximity from the extrusion die with a set of compression molding dies capable of traveling with the profiled strip at substantially the same speed for a sufficient length of time to permanently set the predetermined shape, disengaging the compression molding dies from the profiled strip at a predetermined distance from the extrusion die;
cooling the profiled strip having the compression molded predetermined shape in a suitable cooling fluid such that the predetermined shape is permanently maintained, and then trimming the extruded profiled strip into discontinuous pieces each having the compression molded predetermined shape.
CA 2017526 1989-11-13 1990-05-25 Extrusion shaping method Expired - Fee Related CA2017526C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43415689A 1989-11-13 1989-11-13
US07/434,156 1989-11-13

Publications (2)

Publication Number Publication Date
CA2017526A1 true CA2017526A1 (en) 1991-05-13
CA2017526C CA2017526C (en) 1994-06-14

Family

ID=23723048

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2017526 Expired - Fee Related CA2017526C (en) 1989-11-13 1990-05-25 Extrusion shaping method

Country Status (1)

Country Link
CA (1) CA2017526C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107498886A (en) * 2017-07-31 2017-12-22 东莞市那宏五金科技有限公司 A kind of silica gel and metal combination handling process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201316765D0 (en) * 2013-09-20 2013-11-06 3M Innovative Properties Co Masking Tape

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107498886A (en) * 2017-07-31 2017-12-22 东莞市那宏五金科技有限公司 A kind of silica gel and metal combination handling process
CN107498886B (en) * 2017-07-31 2024-03-26 东莞市那宏五金科技有限公司 Silica gel and metal combined treatment process

Also Published As

Publication number Publication date
CA2017526C (en) 1994-06-14

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed