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1. CN1216949 - Plastic tube and process for mfg. same

Office Chine
Numéro de la demande 97194231.5
Date de la demande 30.04.1997
Numéro de publication 1216949
Date de publication 19.05.1999
Type de publication A
CIB
B29C 49/22
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
29TRAVAIL DES MATIÈRES PLASTIQUES; TRAVAIL DES SUBSTANCES À L'ÉTAT PLASTIQUE EN GÉNÉRAL
CFAÇONNAGE OU ASSEMBLAGE DES MATIÈRES PLASTIQUES; FAÇONNAGE DES MATIÈRES À L'ÉTAT PLASTIQUE NON PRÉVU AILLEURS; POST-TRAITEMENT DES PRODUITS FAÇONNÉS, p.ex. RÉPARATION
49Moulage par soufflage, c. à d. en soufflant une préforme ou une paraison dans un moule pour obtenir la forme désirée; Appareils à cet effet
22de préformes ou de paraisons multicouches
B29C 49/06
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
29TRAVAIL DES MATIÈRES PLASTIQUES; TRAVAIL DES SUBSTANCES À L'ÉTAT PLASTIQUE EN GÉNÉRAL
CFAÇONNAGE OU ASSEMBLAGE DES MATIÈRES PLASTIQUES; FAÇONNAGE DES MATIÈRES À L'ÉTAT PLASTIQUE NON PRÉVU AILLEURS; POST-TRAITEMENT DES PRODUITS FAÇONNÉS, p.ex. RÉPARATION
49Moulage par soufflage, c. à d. en soufflant une préforme ou une paraison dans un moule pour obtenir la forme désirée; Appareils à cet effet
02Moulage par soufflage combiné avec la fabrication de la préforme ou de la paraison
06Moulage par injection-soufflage
CPC
B29C 45/00
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
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29C 45/1603
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
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
16Making multilayered or multicoloured articles
1603Multi-way nozzles specially adapted therefor
B29C 45/1607
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
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
16Making multilayered or multicoloured articles
1603Multi-way nozzles specially adapted therefor
1607having at least three different ways
B29C 45/1642
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
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
16Making multilayered or multicoloured articles
1642having a "sandwich" structure
B29C 45/1643
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
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
16Making multilayered or multicoloured articles
1642having a "sandwich" structure
1643from at least three different materials or with at least four layers
B29K 2023/06
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
2023Use of polyalkenes ; or derivatives thereof; as moulding material
04Polymers of ethylene
06PE, i.e. polyethylene
Déposants Hans Kuehn
汉斯·屈恩
Inventeurs Hans Kuehn
汉斯·屈恩
Mandataires lin wenhe
上海专利商标事务所
Données relatives à la priorité 19617349.3 30.04.1996 DE
Titre
(EN) Plastic tube and process for mfg. same
(ZH) 塑料管体及其制造方法
Abrégé
(EN)
The present invention comprises a method for producing a tube preform using an injection molding method. The inventor of the present invention has found that in the case of using an injection molding method to produce tube preforms which can be constructed with either one layer or a plurality of layers, and of subsequent extension, in particular by heating the preform, and biaxial expansion by means of compressed air, a tube can be obtained which, on the one hand, has a tube shoulder with the strength required by industrial thread and, on the other hand, has a lateral surface which exhibits the softness desired for a tube.

(ZH)

本发明涉及用注塑法制造管坯的方法。本发明人发现,在用注塑法制造单层或多层管坯,然后延伸,特别是加热管坯和用压缩空气进行双轴膨胀的情况下,可以制得一种管子,其管肩既有工业螺纹所需的强度,其侧面又有管子所需的软度。

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