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GB1075820A - Improvements in or relating to apparatus for the working and feeding of synthetic plastic mixes - Google Patents

Improvements in or relating to apparatus for the working and feeding of synthetic plastic mixes

Info

Publication number
GB1075820A
GB1075820A GB54607/65A GB5460765A GB1075820A GB 1075820 A GB1075820 A GB 1075820A GB 54607/65 A GB54607/65 A GB 54607/65A GB 5460765 A GB5460765 A GB 5460765A GB 1075820 A GB1075820 A GB 1075820A
Authority
GB
United Kingdom
Prior art keywords
outlet
synthetic plastic
screw
relating
feeding
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
GB54607/65A
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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 DER26815A external-priority patent/DE1189704B/en
Application filed by Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Publication of GB1075820A publication Critical patent/GB1075820A/en
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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0492—Devices for feeding the different materials
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/445—Coaxially arranged screws, i.e. one within the other
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/763—Vent constructions, e.g. venting means avoiding melt escape
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

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

Abstract

1,075,820. Screw presses. REIFENH€USER KOMM. GES. Dec. 23, 1965 [Jan. 2, 1965], No. 54607/65. Addition to 937,324. Heading B5A. [Also in Division B1] The extrusion apparatus or screw press described in Specification 937,324 is modified by having gas outlets 10 along barrel 3a in addition to outlet 2 in the vicinity of expansion chamber 9. Furthermore the shaft of screw 5 may have an axial bore 11 and radial bores 12 which may act as a further gas outlet or as an inlet for a foam forming reactive mix. Suction may be applied at all the gas outlets and the provision of outlets 10 allows the pressure drop in chamber 9 to be increased so that synthetic plastic material does not escape through outlet 2.
GB54607/65A 1959-11-27 1965-12-23 Improvements in or relating to apparatus for the working and feeding of synthetic plastic mixes Expired GB1075820A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DER26815A DE1189704B (en) 1959-11-27 1959-11-27 Method and device for degassing thermoplastic plastics in screw presses
DER0039583 1965-01-02

Publications (1)

Publication Number Publication Date
GB1075820A true GB1075820A (en) 1967-07-12

Family

ID=25991305

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54607/65A Expired GB1075820A (en) 1959-11-27 1965-12-23 Improvements in or relating to apparatus for the working and feeding of synthetic plastic mixes

Country Status (5)

Country Link
BE (1) BE673454A (en)
CH (1) CH447592A (en)
FR (1) FR89171E (en)
GB (1) GB1075820A (en)
NL (1) NL6517194A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0329934A2 (en) * 1988-02-26 1989-08-30 AEG KABEL Aktiengesellschaft Extruder
CN109107662A (en) * 2017-10-26 2019-01-01 宿州永冠环保科技有限公司 Overheating preventing structure and the rubber grinder for using it

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4427599C2 (en) * 1994-08-04 1998-02-26 Haendle Gmbh & Co Kg Extruders for ceramic masses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0329934A2 (en) * 1988-02-26 1989-08-30 AEG KABEL Aktiengesellschaft Extruder
EP0329934A3 (en) * 1988-02-26 1990-10-31 AEG KABEL Aktiengesellschaft Extruder
CN109107662A (en) * 2017-10-26 2019-01-01 宿州永冠环保科技有限公司 Overheating preventing structure and the rubber grinder for using it

Also Published As

Publication number Publication date
BE673454A (en) 1966-04-01
CH447592A (en) 1967-11-30
NL6517194A (en) 1966-07-04
FR89171E (en) 1967-05-19

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