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1. EP2842722 - METAL/RESIN COMPOSITE PIPE THAT CAN BE EASILY WOUND INTO ANNULAR SHAPE, AND METHOD FOR MANUFACTURING SAME

Office
European Patent Office
Application Number 12875431
Application Date 27.09.2012
Publication Number 2842722
Publication Date 04.03.2015
Publication Kind B1
IPC
B29C 48/151
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
15incorporating preformed parts or layers, e.g. extrusion moulding around inserts
151Coating hollow articles
B29C 48/21
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
16Articles comprising two or more components, e.g. co-extruded layers
18the components being layers
21the layers being joined at their surfaces
B29C 48/28
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
28Storing of extruded material, e.g. by winding up or stacking
B29C 48/285
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
285Feeding the extrusion material to the extruder
B29C 48/34
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
30Extrusion nozzles or dies
32with annular openings, e.g. for forming tubular articles
34Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
B29C 48/92
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
92Measuring, controlling or regulating
CPC
B05D 7/146
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
7Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
14to metal, e.g. car bodies
146to metallic pipes or tubes
B05D 7/54
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
7Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
50Multilayers
52Two layers
54No clear coat specified
B29L 2023/22
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
2023Tubular articles
22Tubes or pipes, i.e. rigid
B29C 48/09
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
03characterised by the shape of the extruded material at extrusion
09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
B29C 48/151
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
15incorporating preformed parts or layers, e.g. extrusion moulding around inserts
151Coating hollow articles
B29C 48/21
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
16Articles comprising two or more components, e.g. co-extruded layers
18the components being layers
21the layers being joined at their surfaces
Applicants KUMKANG CO LTD
Inventors BANG MANHYUK
Designated States
Title
(DE) METALL/HARZ-VERBUNDROHR MIT ERLEICHTERTER WINDUNG IN EINE RINGFÖRMIGE FORM UND VERFAHREN ZUR HERSTELLUNG DAVON
(EN) METAL/RESIN COMPOSITE PIPE THAT CAN BE EASILY WOUND INTO ANNULAR SHAPE, AND METHOD FOR MANUFACTURING SAME
(FR) TUYAU COMPOSITE MÉTAL/RÉSINE FACILEMENT ENROULABLE EN FORME ANNULAIRE, ET PROCÉDÉ DE FABRICATION DUDIT TUYAU
Abstract
(EN)
The present invention may manufacture a composite pipe by forming an adhesive layer and a resin layer on an outer surface of a metal pipe, and although the composite pipe is wound in a ring shape after the composite pipe is manufactured, a circular cross sectional shape may be maintained without deformation, and after the composite pipe is straightened for the purpose of construction, separation or buckling may be prevented, resulting in excellent transportability and constructability of a product.

(FR)
La présente invention concerne un tuyau composite fabriqué par formation d'une couche adhésive et d'une couche de résine au niveau de la surface extérieure d'un tuyau métallique. Le tuyau composite fabriqué est résistant à la détérioration et permet de maintenir la forme originale de la surface de section transversale du tuyau composite même lorsqu'il est enroulé en forme annulaire. Aucun décollement, gondolement, etc. ne se produit, même lorsque le tuyau complexe est rétabli dans sa forme de tuyau droit pour la construction. Ainsi, le composite de l'invention permet de tirer avantage des aptitudes à la construction et au transport sensiblement supérieurs du produit.