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1. 发明专利

ES2255546T3 PROCEDIMIENTO Y LINEA DE FABRICACION EN CONTINUO DE TUBOS EN MATERIAL PLASTICO CON ESTIRAMIENTO BIAXIAL. 未知
公开(公告)号：ES2255546T3
公开(公告)日：2006-07-01
申请号：ES01913987
申请日：2001-03-12
申请人： ALPHACAN SA
发明人： PREVOTAT BERNARD , DUVAL GUILLAUME
IPC分类号： B29C48/325 , B29C48/92 , B29C55/26 , B29L23/00 , B29C48/90 , B29C47/90 , B29C47/92
摘要： Procedimiento de fabricación en continuo de tubos en material plástico con estiramiento biaxial, sobre el cual se realiza una preforma (E) por extrusión, se lleva esta preforma a una temperatura de orientación molecular, se hace pasar esta preforma alrededor de un mandril (12) de dilatación radial, se asegura una calibración y un enfriamiento, todo ello sometiendo la preforma a una tracción axial, caracterizado por el hecho de que: - durante el arranque de la línea, el mandril (12) no está aún instalado y una preforma (E) atraviesa toda la línea; - el mandril (12) es enseguida colocado y una cámara cerrada más arriba y más abajo del mandril (12) se realiza con ayuda de la menos un tapón arriba (11) y al menos un tapón abajo (20, 35; 20a) que comprende al menos un disco de un material suficientemente flexible para poder flexionarse y enderezarse para asegurar la hermeticidad, estando la introducción del tapón inferior de hermeticidad de diámetro superior al tapón superior (11) asegurada gracias a la dilatación inicial sobre el mandril (12), lo que permite realizar la cámara cerrada más arriba y más abajo del mandril, - la dilatación radial realizada sobre el mandril (12) es parcial de manera que el diámetro interno (B) de la preforma (E), cuando deja el mandril, es inferior al diámetro interno nominal del tubo terminado, - y se realiza una dilatación radial complementaria de la preforma hasta su diámetro nominal, por presión interna del fluido, de manera que en régimen permanente de funcionamiento, la superficie interna de la preforma (E) no esté más en contacto con el mandril (2).

2. 发明专利

FR2806956B1 未知
公开(公告)号：FR2806956B1
公开(公告)日：2003-05-09
申请号：FR0003931
申请日：2000-03-29
申请人： ALPHACAN SA
发明人： PREVOTAT BERNARD , DUVAL GUILLAUME
IPC分类号： B29C48/325 , B29C48/92 , B29C55/26 , B29C48/90 , B29L23/00 , B29C47/90
摘要： The invention concerns a continuous manufacturing method which consists in producing a blank (E) by extrusion, bringing said blank to a temperature for molecular orientation, passing said blank around a radial expansion mandrel ( 12 ); gauging and cooling while subjecting the blank to axial traction. The radial expansion produced on the mandrel ( 12 ) is partial so that the internal diameter (B) of the blank (E), when it leaves the mandrel, is less than the nominal internal diameter (D) of the finished tube; performing an additional radial expansion of the blank, up to its nominal diameter, by internal fluid pressure. In permanent operating conditions, the inner surface of the blank (E) is no longer in contact with the mandrel ( 12 ).

3. 发明专利

CA2404219A1 PROCEDE ET LIGNE DE FABRICATION EN CONTINU DE TUBES EN MATIERE PLASTIQUE AVEC ETIRAGE BI-AXIAL, ET TUBE EN MATIERE PLASTIQUE OBTENU 未知
公开(公告)号：CA2404219A1
公开(公告)日：2001-10-04
申请号：CA2404219
申请日：2001-03-12
申请人： ALPHACAN SA
发明人： DUVAL GUILLAUME , PREVOTAT BERNARD
IPC分类号： B29C48/90 , B29C48/325 , B29C48/92 , B29C55/26 , B29L23/00 , B29C47/90 , B29C47/92

4. 发明专利

DK1268158T3 未知
公开(公告)号：DK1268158T3
公开(公告)日：2006-05-08
申请号：DK01913987
申请日：2001-03-12
申请人： ALPHACAN SA
发明人： DUVAL GUILLAUME , PREVOTAT BERNARD
IPC分类号： B29C48/90 , B29C48/325 , B29C48/92 , B29C55/26 , B29L23/00
摘要： The invention concerns a continuous manufacturing method which consists in producing a blank (E) by extrusion, bringing said blank to a temperature for molecular orientation, passing said blank around a radial expansion mandrel ( 12 ); gauging and cooling while subjecting the blank to axial traction. The radial expansion produced on the mandrel ( 12 ) is partial so that the internal diameter (B) of the blank (E), when it leaves the mandrel, is less than the nominal internal diameter (D) of the finished tube; performing an additional radial expansion of the blank, up to its nominal diameter, by internal fluid pressure. In permanent operating conditions, the inner surface of the blank (E) is no longer in contact with the mandrel ( 12 ).

5. 发明专利

MXPA02007687A METODO Y LINEA DE PRODUCCION CONTINUA DE TUBOS DE PLASTICO CON ESTIRAMIENTO BIAXIALY TUBO DE PLASTICO RESULTANTE. 未知
公开(公告)号：MXPA02007687A
公开(公告)日：2004-08-23
申请号：MXPA02007687
申请日：2001-03-12
申请人： ALPHACAN SA
发明人： DUVAL GUILLAUME
IPC分类号： B29C48/325 , B29C48/92 , B29C55/26 , B29L23/00 , B29C48/90 , B29C47/90 , B29C47/92
摘要： La invencion se refiere a un metodo de fabricacion continuo en el cual se realiza una preforma mediante extrusion, se lleva esta preforma a temperatura de orientacion molecular, se hace pasar esta preforma alrededor de un mandril de dilatacion radial, se asegura una calibracion y un enfriamiento, mientras se somete la preforma a una traccion axial; la dilatacion radial realizada sobre el mandril es parcial de modo que el diametro interno de la preforma, cuando sale del mandril, es inferior al diametro interno nominal del tubo terminado; se realiza una dilatacion radial complementaria de la preforma, hasta su diametro nominal, mediante presion interna de fluido; en regimen permanente de funcionamiento, la superficie interna de la preforma ya no esta en contacto con el mandril.

6. 发明专利

AU3938101A Method and continuous production line of plastic tubes with bi-axial drawing, and resulting plastic tube 未知
公开(公告)号：AU3938101A
公开(公告)日：2001-10-08
申请号：AU3938101
申请日：2001-03-12
申请人： ALPHACAN SA
发明人： PREVOTAT BERNARD , DUVAL GUILLAUME
IPC分类号： B29C48/90 , B29C48/325 , B29C48/92 , B29C55/26 , B29L23/00 , B29C47/90 , B29C47/92
摘要： The invention concerns a continuous manufacturing method which consists in producing a blank (E) by extrusion, bringing said blank to a temperature for molecular orientation, passing said blank around a radial expansion mandrel ( 12 ); gauging and cooling while subjecting the blank to axial traction. The radial expansion produced on the mandrel ( 12 ) is partial so that the internal diameter (B) of the blank (E), when it leaves the mandrel, is less than the nominal internal diameter (D) of the finished tube; performing an additional radial expansion of the blank, up to its nominal diameter, by internal fluid pressure. In permanent operating conditions, the inner surface of the blank (E) is no longer in contact with the mandrel ( 12 ).

7. 发明专利

FR2806956A1 未知
公开(公告)号：FR2806956A1
公开(公告)日：2001-10-05
申请号：FR0003931
申请日：2000-03-29
申请人： ALPHACAN SA
发明人： PREVOTAT BERNARD , DUVAL GUILLAUME
IPC分类号： B29C48/325 , B29C48/92 , B29C55/26 , B29C48/90 , B29L23/00 , B29C47/90
摘要： The invention concerns a continuous manufacturing method which consists in producing a blank (E) by extrusion, bringing said blank to a temperature for molecular orientation, passing said blank around a radial expansion mandrel (12); gauging and cooling while subjecting the blank to axial traction. The radial expansion produced on the mandrel (12) is partial so that the internal diameter (B) of the blank (E), when it leaves the mandrel, is less than the nominal internal diameter (D) of the finished tube; performing an additional radial expansion of the blank, up to its nominal diameter, by internal fluid pressure. In permanent operating conditions, the inner surface of the blank (E) is no longer in contact with the mandrel (12).

8. 发明专利

CA2404219C PROCEDE ET LIGNE DE FABRICATION EN CONTINU DE TUBES EN MATIERE PLASTIQUE AVEC ETIRAGE BI-AXIAL, ET TUBE EN MATIERE PLASTIQUE OBTENU 未知
公开(公告)号：CA2404219C
公开(公告)日：2008-09-02
申请号：CA2404219
申请日：2001-03-12
申请人： ALPHACAN SA
发明人： PREVOTAT BERNARD , DUVAL GUILLAUME
IPC分类号： B29C48/90 , B29C48/325 , B29C48/92 , B29C55/26 , B29L23/00
摘要： Procédé de fabrication en continu selon lequel on réalise une ébauche (E) par extrusion, on amène cette ébauche à température d'orientation moléculaire, on fait passer cette ébauche autour d'un mandrin (12) de dilatation radiale, on assure un calibrage et un refroidissement, tout en soumettant l'ébauche à une traction axiale. La dilatation radiale réalisée sur le mandrin (12) est partielle de sorte que le diamètre interne (B) de l'ébauche (E), lorsqu'elle quitte le mandrin, est inférieur au diamètre interne nominal (D) du tube fini; on réalise une dilatation radiale complémentaire de l'ébauche, jusqu'à son diamètre nominal, par pression interne de fluide. En régime permanent de fonctionnement, la surface interne de l'ébauche (E) n'est plus en contact avec 1 mandrin (12).

9. 发明专利

DE60116471T2 未知
公开(公告)号：DE60116471T2
公开(公告)日：2006-09-28
申请号：DE60116471
申请日：2001-03-12
申请人： ALPHACAN SA
发明人： PREVOTAT BERNARD , DUVAL GUILLAUME
IPC分类号： B29C48/90 , B29C48/325 , B29C48/92 , B29C55/26 , B29L23/00
摘要： The invention concerns a continuous manufacturing method which consists in producing a blank (E) by extrusion, bringing said blank to a temperature for molecular orientation, passing said blank around a radial expansion mandrel ( 12 ); gauging and cooling while subjecting the blank to axial traction. The radial expansion produced on the mandrel ( 12 ) is partial so that the internal diameter (B) of the blank (E), when it leaves the mandrel, is less than the nominal internal diameter (D) of the finished tube; performing an additional radial expansion of the blank, up to its nominal diameter, by internal fluid pressure. In permanent operating conditions, the inner surface of the blank (E) is no longer in contact with the mandrel ( 12 ).

10. 发明专利

FR2806957A1 Continuous production of bi=axially oriented plastic tubing includes monitoring axial force applied to extruded blank so force kept constant 未知
公开(公告)号：FR2806957A1
公开(公告)日：2001-10-05
申请号：FR0003932
申请日：2000-03-29
申请人： ALPHACAN SA
发明人： PREVOTAT BERNARD , DUVAL GUILLAUME
IPC分类号： B29C48/90 , B29C48/92 , B29C55/26 , B29C47/92 , B29C47/90
摘要： Continuous production of bi-axially oriented plastic tubing includes extruding a blank, heat treating the blank to orient the plastic, radially expanding the blank into a tube and then gauging and cooling the tube. An axial traction force applied to the tube is monitored so the applied force is kept substantially constant. Independent claims are included for the following: (a) A plastic tube made as above. (b) A production line for plastic tube has an extruder, temperature controlled tank(s) for molecular orientation of the extruded plastic, a radial dilator, a Preferred Features: The traction force is controlled by measuring the force applied to the tube, the internal pressure of the tube and/or depression of the tube at the gauging device. A tube traction device is downstream of the gauging device and cooling devices. Two spaced apart flexible plugs within the expanded blank/tube define a sealed chamber within it.

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