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GB1378221A - Extruder for vacuum processing of polymeric materials - Google Patents

Extruder for vacuum processing of polymeric materials

Info

Publication number
GB1378221A
GB1378221A GB3812372A GB3812372A GB1378221A GB 1378221 A GB1378221 A GB 1378221A GB 3812372 A GB3812372 A GB 3812372A GB 3812372 A GB3812372 A GB 3812372A GB 1378221 A GB1378221 A GB 1378221A
Authority
GB
United Kingdom
Prior art keywords
screw
mixture
zone
extrusion
gap
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
GB3812372A
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.)
VNII REZINOTEKH MASH
Original Assignee
VNII REZINOTEKH MASH
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 VNII REZINOTEKH MASH filed Critical VNII REZINOTEKH MASH
Priority to GB3812372A priority Critical patent/GB1378221A/en
Publication of GB1378221A publication Critical patent/GB1378221A/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
    • 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
    • B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
    • 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
    • B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92714—Degree of crosslinking, solidification, crystallinity or homogeneity
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92723—Content, e.g. percentage of humidity, volatiles, contaminants or degassing
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • 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

1378221 Extrusion apparatus VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INTITUT REZINOTEKHNICHESKOGO MASHINOSTROENIA 16 Aug 1972 38123/72 Heading B5A In the screw-extrusion of a rubber profile, moisture and gases are removed from the heat plasticized and homogenized rubber mixture being extruded, at a barrel zone 3 to which vacuum is applied and within which the screw is of increased diameter. The mixture is delivered into the zone 3, from the upstream screw portion of narrower diameter, from an annular gap 8 of decreasing cross-section area in the direction of extrusion and defined between flared surfaces 7 of the screw and a mouth 6 of a sleeve 5 which is axially adjustable, to vary the restriction of the gap 8, by means of a sleeve thread 10 engaged by a nut 11 rotated by a gear drive 12. The mixture is delivered from the gap 8 as a tubular film, which is cut into strips in the zone 3 by cutting edges 13 on the screw flanks.
GB3812372A 1972-08-16 1972-08-16 Extruder for vacuum processing of polymeric materials Expired GB1378221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3812372A GB1378221A (en) 1972-08-16 1972-08-16 Extruder for vacuum processing of polymeric materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3812372A GB1378221A (en) 1972-08-16 1972-08-16 Extruder for vacuum processing of polymeric materials

Publications (1)

Publication Number Publication Date
GB1378221A true GB1378221A (en) 1974-12-27

Family

ID=10401339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3812372A Expired GB1378221A (en) 1972-08-16 1972-08-16 Extruder for vacuum processing of polymeric materials

Country Status (1)

Country Link
GB (1) GB1378221A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119626A (en) * 1982-05-08 1983-11-23 Katjes Fassin Gmbh And Co Kg Process and apparatus for production of sweets
CN116038936A (en) * 2022-12-30 2023-05-02 河南省银丰塑料有限公司 Full biodegradable plastic low energy consumption granulator
CN116277856A (en) * 2023-05-18 2023-06-23 河北金威新型建筑材料有限公司 Rubber extrusion equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119626A (en) * 1982-05-08 1983-11-23 Katjes Fassin Gmbh And Co Kg Process and apparatus for production of sweets
CN116038936A (en) * 2022-12-30 2023-05-02 河南省银丰塑料有限公司 Full biodegradable plastic low energy consumption granulator
CN116038936B (en) * 2022-12-30 2024-04-16 河南省银丰塑料有限公司 Full biodegradable plastic low energy consumption granulator
CN116277856A (en) * 2023-05-18 2023-06-23 河北金威新型建筑材料有限公司 Rubber extrusion equipment
CN116277856B (en) * 2023-05-18 2023-07-21 河北金威新型建筑材料有限公司 Rubber extrusion equipment

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Legal Events

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