GB1144279A - Process for extrusion-coating continuous flexible tubing - Google Patents

Process for extrusion-coating continuous flexible tubing

Info

Publication number
GB1144279A
GB1144279A GB56399/67A GB5639967A GB1144279A GB 1144279 A GB1144279 A GB 1144279A GB 56399/67 A GB56399/67 A GB 56399/67A GB 5639967 A GB5639967 A GB 5639967A GB 1144279 A GB1144279 A GB 1144279A
Authority
GB
United Kingdom
Prior art keywords
tube
extrusion
extruder
flexible tubing
crosshead
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
GB56399/67A
Inventor
William Henry Bentley
Joseph Sellers Kite
Henry Michael Morott
Robert Lee Nunnally
David Herman Reinert
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.)
Raychem Corp
Original Assignee
Raychem Corp
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 Raychem Corp filed Critical Raychem Corp
Priority to GB56399/67A priority Critical patent/GB1144279A/en
Publication of GB1144279A publication Critical patent/GB1144279A/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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles

Abstract

1,144,279. Extrusion coating flexible tubing. RAYCHEM CORP. 12 Dec., 1967, No. 56399/67. Heading B5A. Flexible tubing is extrusion coated by passing the tubing under longitudinal tension, and in the absence of any internal supporting mandrel, through a crosshead extruder. The tension maintains the tube in a sufficiently rigid state to avoid its deformation under the extrusion pressure. In the described embodiment, a fabric tube 10 is drawn through a crosshead extruder from a braked feed capstan by a takeoff capstan (see Fig. 1, not shown), the tube being coated with an adhesive prior to passage through the extruder and the coating being cured subsequently by passage through an oven. The extruder comprises a central passage having a liner which is attached via sleeves 52 and 54 to an annular die 42. The tube is guided through the die by bush 50 and the coating material is fed from a screw barrel 20, pivotally mounted upon the crosshead, through a breaker plate 30.
GB56399/67A 1967-12-12 1967-12-12 Process for extrusion-coating continuous flexible tubing Expired GB1144279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB56399/67A GB1144279A (en) 1967-12-12 1967-12-12 Process for extrusion-coating continuous flexible tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB56399/67A GB1144279A (en) 1967-12-12 1967-12-12 Process for extrusion-coating continuous flexible tubing

Publications (1)

Publication Number Publication Date
GB1144279A true GB1144279A (en) 1969-03-05

Family

ID=10476513

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56399/67A Expired GB1144279A (en) 1967-12-12 1967-12-12 Process for extrusion-coating continuous flexible tubing

Country Status (1)

Country Link
GB (1) GB1144279A (en)

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