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Publication of BE756164ApublicationCriticalpatent/BE756164A/en
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
B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
B29C53/56—Winding and joining, e.g. winding spirally
B29C53/58—Winding and joining, e.g. winding spirally helically
B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Moulding By Coating Moulds
(AREA)
Laminated Bodies
(AREA)
Shaping Of Tube Ends By Bending Or Straightening
(AREA)
Abstract
Multi-layer tubular structure comprises a band of synthetic organic polymer resin reinforced with fibres and wound in the shape of a cylinder around a horizontal axis in a series of convolutions of successive by increased diameter in order to define a longitudinal opening, the continuous surfaces of the successive windings of the band adhering to one another. Typical polymer materials include PVC, "Saran" polyolefins and "Nylons".
BE756164D1970-09-15Multilayer tube of reinforced synthetic - material
BE756164A
(en)