Quetschwalzengranulator mit Quetschwalzenpaar und Verwendung desselben

Quetschwalzengranulator der ein Quetschwalzenpaar (60) aus einer verzahnten Andruckwalze (2) und einer verzahnten Quetschwalze (3) aufweist, wobei die Verzahnung (4) der Andruckwalze (2) und der Quetschwalze (3) Zahnflanken (5, 6) aufweist, die zwischen einem Zahnfußbereich (7) und einem Zahnkopfbereich (8, 8') angeordnet sind, und wobei der Zahnfußbereich (7) einen Außendurchmesser (d) aufweist, der geringer ist als der Außendurchmesser (D) des Zahnkopfbereichs, und wobei wenigstens eine der Walzen (2, 3) des Quetschwalzenpaares (60) in dem Zahnkopfbereich (8, 8') drei Quetschzonen (9, 10, 11) mit einer Mittenquetschzone (10) aufweist, die unterschiedliche Abstände zwischen den Zahnkopfbereichen (8, 8') mit einem minimalen Abstand (a) im Bereich der Mittenquetschzone (10), und wobei die Kontur der Zahnflanken (5, 6) und des Zahnfußbereichs (7) der Walzen (2, 3) des Quetschwalzenpaares (60) einen maximalen Querschnitt von zu formenden Granulatkissen (12) definiert.

Improved method and apparatus for longitudinal orientation of a tubular thermoplastic film in molten or semimolten state

Improvements in or relating to extrusion

Improvements relating to extrusion of plastic material

... 864,916. Extrusion machines. PHILLIPS PETROLEUM CO. Jan. 1, 1959 [Jan. 24, 1958], No. 45/59. Class 87(2). [Also in Groups XIII and XXXV] A screw extrusion-drying machine has a cylinder 16, 17 with a movable portion 37 co-operating with the screws 22, 23 to provide a clearance opening for the passage of the plastic material and has temperature sensitive means 70 connected to operating means 60 arranged to vary the clearance opening between the screws and the portion 37 in response to changes in temperature of the plastic material thus to vary the pressure and maintain constant the temperature. The means 60 may be a diaphragm motor valve operated by a temperature recorder controller 68 actuated by the means 70 which may be a thermocouple. The apparatus is particularly directed towards the drying and degassing of plastic materials and the screws have back pressure zones 31, 32 so that the liquid released from the material may flow back along the screws and escape under their shoulders 33, ...

Recycled thermoplastic processing plant comprises two evacuated mixing vessels with temperature sensors, an inlet side vacuum sluice and an outlet to an extruder

Two vacuum-connected processing vessels are connected and have rotating tools for mixing and warming material. A material inlet (19) of the first vessel (1) is connected to a sluice (6). Tools rotate in both vessels and (19) is above the uppermost tools in (1). An outlet (49) from the second vessel (2) leads to an extruder (62). Temperature sensors (32) are located on each tool plane. A recycled thermoplastic processing plant comprises two vacuum-connected processing vessels connected to each other and having tools rotating around vertical axes for mixing and warming material. A material inlet (19) of the first vessel (1) is connected to a sluice (6). Tools rotate in several planes one above the other in both vessels and the inlet is above the uppermost tools in the first container. An outlet (49) from the second vessel (2) leads to an extruder (62) and is at the level of the lowest tools in the latter. A temperature sensor(32) is located on each tool plane in both vessels.

DEVICE FOR CALIBRATING A FROM AN EXTRUSION CONTINUOUS WITHDRAWING ART OF MATERIAL PROFILE

DEVICE FOR THE PROCESSING OF THERMOPLASTIC PLASTIC MATERIAL

MELTING CYLINDER

Apparatus for thermal processing of plastics

Vorrichtung (50) zur thermischen Bearbeitung von Kunststoffen, umfassend eine Luftentfeuchtungsanlage (20) und ein thermisch beheizbares Werkzeug (52), welches von einem Werkzeugraum (54) umgeben ist, dadurch gekennzeichnet, dass der Luftauslass (14) der Luftentfeuchtungsanlage (20) und der Lufteinlass (12) der Luftentfeuchtungsanlage (20) jeweils mit dem Werkzeugraum (54) verbunden sind, wobei die Luftentfeuchtungsanlage (20) zumindest zwei Wärmetauscher (1, 2, 3, 4) aufweist, welche einen gemeinsamen Kühlmittelkreislauf (10) aufweisen, wobei der erste Wärmetauscher (1) und der zweite Wärmetauscher (3) hintereinander angeordnet sind, sodass der Lufteinlass (12) am ersten Wärmetauscher (1) angeordnet ist und der Luftauslass (14) nach dem zweiten Wärmetauscher (3) angeordnet ist, wobei der erste Wärmetauscher (1) einen Verdampfungswärmetauscher aufweist und der zweite Wärmetauscher (3) einen Kondensationswärmetauscher aufweist, wobei der Kühlmittelkreislauf (10) derart ist, dass der Kühlmittelauslass ...

PROCEDURE FOR THE PRODUCTION OF FOILS, IN PARTICULAR ON THE BASIS OF POLYVINYL BUTYRAL WITH SMALL SURFACE TACKNESS.

LONGITUDINAL ORIENTATION OF SCHLAUCHFOLIEN FROM THERMOPLASTIC PLASTIC

PROCEDURE FOR THE HANDLING OF LIQUIDS OF MEANS OF A BUFFER TANK

CONTINUOUSLY BLENDING, MOLDING AND CURING HEAT CURABLE POLYMERIC COMPOUNDS

Longitudinal orientation of a tubular thermoplastic film

MOULDING OF SYNTHETIC PLATICS PRODUCTS

In a method of moulding articles in synthetic plastics, plasticised plastics material is fed by a screw within a cylinder, along the cylinder to a nozzle from whence the material is injected into the mould cavity. The feeding of the material into the mould cavity is however effected by rotation of the screw almost in its forwardmost position instead of by longitudinal movement of the screw from its rearwardmost to its forwardmost position. The longitudinal position of the screw is adjusted during filling of the mould cavity by biasing means acting axially on the screw and controlled by means sensing the position of the screw. The temperature distribution throughout the cylinder, the nozzle, the screw and the screw tip is controlled by separate cooling circuits for the various zones, the various cooling circuits coming into operation at various times during a moulding cycle, as determined by timing means.

EXTERNAL COOLING AIR RING FOR BLOWN-FILM EXTRUSION

An air ring comprises a circular plenum in fluid communication with a source of pressurized air. An upper and lower annular lips are in fluid communication with the plenum through upper and lower channels and are arranged to supply air to the blown film bubble. A plurality of vanes are disposed in the upper channel and extend radially inwardly from the plenum to the upper annular lip. The vanes divide the upper channel into a plurality of radially extending channel segments. Each vane has a selected length and a distal end proximal the upper annular lip, the distal end being spaced from the upper annular lip no greater than about 20% of the length of the vanes. A powered plunger extends between the vanes of each of the channel segments to vary the cross-sectional area of the channel segments.

A BLOWN-FILM EXTRUSION APPARATUS AND A METHOD FOR MANUFACTURING A BLOWN FILM

A blown-film extrusion apparatus for manufacturing a tubular polymer film (1) comprises an extruder (2); a solidification ring for solidifying a tubular element produced by the extruder and for forming the film by delivering cooling air on the tubular element at a given cooling height, and a film conveyor for conveying the film upwards. The apparatus also comprises a delivery device (80) for projecting correction air on the tubular element, in order to locally correct the thickness of the film, comprising a distribution chamber (78); a plurality of air delivery members (81') with delivery channels (37) whose delivery mouths (33',33") are arranged about said axis (25) of the apparatus for projecting correction air partial streams (19') on respective angular correction positions, between the die and the cooling height; flow control elements (68) between the distribution chamber (78), and the inlet (32) of respective air delivery members, configured for adjusting the flowrate of the respective ...

DEVICE AND METHOD FOR COOLING PLASTIC PROFILES

The invention relates to an extrusion line for producing plastic profiles, preferably plastic tubes, comprising at least one extruder (1), a tool (2), a calibrator (3) and additional post-processing devices (4, 5). According to the invention, at least the tool (2) has at least one passage (8) and a suction device (6) is arranged upstream of the tool (2) when seen in the direction of ex-trusion (7), said tool (2) having several functional areas with separate melt channels. The invention also relates to a method for in-creasing the cooling power of the extrusion line.

Verfahren und Einrichtung zum Strangpressen thermoplastischer Materialien

Verfahren und Vorrichtung zur innigen Vermengung einer kohlenstoffhaltige Partikel enthaltenden Pechmasse

PROCEDURE FOR THE PRODUCTION OF BLAST TUBE FOILS AND DEVICE FOR THE EXECUTION OF THE PROCEDURE.

Method for producing extruded resin sheet

MELT PROCESSING PLANT

The present invention relates to a melt processing plant, comprising a melt charger for charging a processing head, in particular palletizing head, with melt, wherein upstream of the processing head a diverter valve for discharging the melt during a starting and/or retooling phase is associated to the melt charger, and to a method for melt processing in such melt processing plant. In accordance with the invention, a portioning device for portioning the discharged melt into melt portions is associated to the diverter valve, wherein a cooling device for cooling the melt portions to at least partly solidified chunks of material is provided.

СИСТЕМА ДЛЯ ФОРМОВКИ ТРУБЫ С УПРАВЛЕНИЕМ ВАКУУМОМИ ТЕМПЕРАТУРОЙ ОХЛАЖДАЮЩИХ ВТУЛОК

FIELD: technological processes. SUBSTANCE: system for pipe molding includes double-stage cooling insert. The first cooling stage is controlled, removing heat from pipe wall, in order to partially harden plastic without its excess cooling. Partially cooled plastic pipe then arrives to second stage, where lower accuracy is required in pipe cooling, because partially hardened plastic is less vulnerable to damages. The first and second stages contain separate temperature detectors and controlling devices, which are intended for changing of cooling medium parameters in every stage. Cooling medium passes through the first stage at such temperature and with such flow rate, so that temperature of the first stage is maintained in narrow temperature range close to temperature of cooling medium. Staged cooling insert provides better control at initial system start-up and in case of operating conditions change. EFFECT: stabilisation of pipe shape inside of moving molding tunnel. 14 cl, 11 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 333 099 (13) C2 (51) ÌÏÊ B29C 47/78 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2006117332/12, 24.11.2004 (72) Àâòîð(û): ËÀÏÊÈ Ìàíôðåä À.À. (CA), ËÀÏÊÈ Ñòåôàí À. (CA) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 24.11.2004 (43) Äàòà ïóáëèêàöèè çà âêè: 10.01.2008 R U (73) Ïàòåíòîîáëàäàòåëü(è): ËÀÏÊÈ Ìàíôðåä À. À. (CA), ËÀÏÊÈ Ñòåôàí À. (CA) (30) Êîíâåíöèîííûé ïðèîðèòåò: 24.11.2003 CA 2,450,560 (45) Îïóáëèêîâàíî: 10.09.2008 Áþë. ¹ 25 2 3 3 3 0 9 9 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 4510013 A1, 09.04.1985. US 5296188 A, 22.03.1994. US 4663107 A1, 05.05.1987. SU 1801092 A3, 07.03.1993. RU 2193813 C2, 27.11.2002. SU 674926 A, 25.07.1979. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 26.06.2006 2 3 3 3 0 9 9 R U (87) Ïóáëèêàöè PCT: WO 2005/049302 (02.06.2005) C 2 C 2 (86) Çà âêà PCT: CA 2004/002016 (24.11.2004) Àäðåñ äë ...

СПОСОБ АВТОМАТИЧЕСКОГО УПРАВЛЕНИЯ ЭКСТРУДЕРОМ

FIELD: grain processing. SUBSTANCE: method comprises supplying extrudate downstream of the matrix to the vacuum chamber, measuring temperature and pressure of the material upstream of the matrix, flow rate and humidity of the raw material, flow rate of the cooling agent, and power of the extruder to be controlled. The flow rate and humidity of the extrudate at the exit of the vacuum chamber, pressure of the fluid in the vacuum chamber, ratio of pressure in the zone upstream of the matrix of the extruder and in the vacuum chamber, temperature and flow rate of the fluid evaporated from the extruder, and temperature of dried air and cooling water are also measured. Upstream of the extruder the initial raw material is heated by means of the steam-air mixture in the heat and mass exchanger. The steam-air mixture is first heated in the condenser of the cooling machine, is supplied to the heat and mass exchanger, and then is returned to the condenser of the cooling machine to cause the mixture to circulate between the heat and mass exchanger, condenser of the cooling machine, and the heat and mass exchanger. EFFECT: improved method. 1 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 294 833 (13) C1 (51) ÌÏÊ B29C 47/92 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005137161/12, 30.11.2005 (72) Àâòîð(û): Îñòðèêîâ Àëåêñàíäð Íèêîëàåâè÷ (RU), Øåâöîâ Àëåêñàíäð Àíàòîëüåâè÷ (RU), Âàñèëåíêî Âèòàëèé Íèêîëàåâè÷ (RU), Îæåðåëüåâà Îëüãà Íèêîëàåâíà (RU) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 30.11.2005 (45) Îïóáëèêîâàíî: 10.03.2007 Áþë. ¹ 7 Àäðåñ äë ïåðåïèñêè: 394000, ã.Âîðîíåæ, ïð-êò Ðåâîëþöèè, 19, ÂÃÒÀ, îòäåë ÑÌÏ 2 2 9 4 8 3 3 R U (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê çåðíîïåðåðàáàòûâàþùåé ïðîìûøëåííîñòè, à èìåííî ê àâòîìàòèçàöèè ïðîöåññîâ ïîëó÷åíè ýêñòðóäèðîâàííûõ êîìáèêîðìîâ, è ìîæåò áûòü èñïîëüçîâàíî â óñòðîéñòâàõ äë ïðîèçâîäñòâà ïèùåâûõ êîíöåíòðàòîâ, à òàêæå â äðóãèõ ïðîèçâîäñòâàõ, ...

Усовершенствование регулирования давления воздуха для корругатора

Verfahren zur Herstellung von plastifizierter Polyvinyl-Butyral-Folie.

Extrusion machine

... 574,367. Liquid - pressure engines. MACMILLIN, H. F., and POCOCK, P. C. July 13, 1943, No. 11386. Convention date, March 10. [Class 69 (ii)] [Also in Group V] The extrusion screw is axially slidable in its cylinder, and axial thrust exerted thereon by the material being extruded is opposed hydraulically by liquid under pressure supplied from a liquid-circulating system, means being provided whereby changes in the said axial thrust cause variations in the opposed hydraulic pressure, the axial position of the screw in its cylinder being thus automatically regulated. Thus, the screw may be retained always in a predetermined position, whereby the output thereof is maintained constant. Fig. 1 shows an arrangement in which the screw shaft 35 slidably passes through and is driven by a hydraulic motor 40. The rear end of the shaft carries a piston 42 disposed in a cylinder 44, the front wall of which includes a thrust bearing 47. Pressure liquid is supplied by a variable delivery pump P through ...

Cooling and pelletizing extruded thermoplastic strands

Apparatus is provided for controlled cooling of thermoplastic strands between the time that they are extruded from a melt of thermoplastic material until they are cut into pellets by a pelletizer that pulls the strands into it. A first tray inclined downwardly from the extruder receives the strands which are sprayed with cooling liquid while in the tray. A second tray inclined upwardly from the bottom of the first tray toward the pelletizer receives the strands which are also sprayed while in the second tray. Cooling liquid is also introduced at the inlet end of the first tray. A gravity liquid removal screen is positioned at the low point of each tray to remove the cooling liquid from the trays. A vacuum system for removing cooling liquid from the strands may also be positioned between the higher end of the second tray and the pelletizer. The temperature and quantity of the cooling liquid sprayed on the first tray, that sprayed on the second tray, and that introduced at the inlet end of ...

CALIBRATING PLASTICS TUBULAR ARTICLES BEING EXTRUDED FROM AN EXTRUDER

Apparatus for thermal processing of plastics

Vorrichtung (50) zur thermischen Bearbeitung von Kunststoffen, umfassend eine Luftentfeuchtungsanlage (20) und ein thermisch beheizbares Werkzeug (52), welches von einem Werkzeugraum (54) umgeben ist, dadurch gekennzeichnet, dass der Luftauslass (14) der Luftentfeuchtungsanlage (20) und der Lufteinlass (12) der Luftentfeuchtungsanlage (20) jeweils mit dem Werkzeugraum (54) verbunden sind, wobei die Luftentfeuchtungsanlage (20) zumindest zwei Wärmetauscher (1, 2, 3, 4) aufweist, welche einen gemeinsamen Kühlmittelkreislauf (10) aufweisen, wobei der erste Wärmetauscher (1) und der zweite Wärmetauscher (3) hintereinander angeordnet sind, sodass der Lufteinlass (12) am ersten Wärmetauscher (1) angeordnet ist und der Luftauslass (14) nach dem zweiten Wärmetauscher (3) angeordnet ist, wobei der erste Wärmetauscher (1) einen Verdampfungswärmetauscher aufweist und der zweite Wärmetauscher (3) einen Kondensationswärmetauscher aufweist, wobei der Kühlmittelkreislauf (10) derart ist, dass der Kühlmittelauslass ...

HEIZ- UND KÜHLVORRICHTUNG FÜR EINEN EXTRUDERZYLINDER UND VERFAHREN ZU DEREN BETRIEB

The equipment (2) has heating and cooling sections (1) arranged behind each other in a longitudinal direction of a cylinder casing (4) of an extrusion cylinder (3). A temperature difference regulation device (53) with a power regulation unit (46) is provided upstream to heating elements (22) of upper heating-cooling devices (24) of the sections in a line (41). A temperature-difference value sensor (56) of the regulation device is connected with a reference-temperature regulation device (47) of an attachment-control-and regulation device (40) and a temperature detection unit (33) by the line. An independent claim is also included for a method for operating a heating- and cooling equipment for an extrusion cylinder for production of a plastic mass.

KALIBRIERVORRICHTUNG UND KALIBRIERVERFAHREN

The calibrating device has a dry calibrating distance (20) and a wet calibrating distance (30). A coolant flow (10) is flowed through the dry calibrating distance and the wet calibrating distance. A flow guide of the coolant flow is formed such that the coolant flow is flowed through after the cross-flow of the dry calibrating distance of the wet calibrating distance. A cooling medium is inserted after the cooling through a cooling medium outlet (3) from the dry calibrating distance in a storage tank (5), particularly a manifold. An independent claim is included for a calibrating method for an extrusion.

PROCEDURE AND DEVICE FOR THE BLOWING FOIL PRODUCTION.

DEVICE AND METHOD FOR COOLING PLASTIC PROFILES

The invention relates to an extrusion line for producing plastic profiles, preferably plastic tubes, comprising at least one extruder (1), a tool (2), a calibrator (3) and additional post-processing devices (4, 5). According to the invention, at least the tool (2) has at least one passage (8) and a suction device (6) is arranged upstream of the tool (2) when seen in the direction of extrusion (7), said tool (2) having several functional areas with separate melt channels. The invention also relates to a method for increasing the cooling power of the extrusion line.

CALIBRATION DEVICE FOR CALIBRATING AN EXTRUDED FILM TUBE

Calibration device 15 for calibrating an extruded film tube 8 above the frost line 14, wherein an annular gap 36 is formed between the calibration device 15 and the film tube 8, comprising a plurality of calibration segments 16 distributed around a longitudinal axis L and forming a central feed through opening 26 for feeding through the film tube 8 along the longitudinal axis L, wherein the calibration segments 16 are adjustable for adjusting the diameter of the feed through opening 26, and at least one blowing nozzle 28 for each calibration segment 16, said at least one blowing nozzle 28 feeds a calibration gas to the feed through opening, that said at least one blowing nozzle 28 is formed such, that the calibration gas is guided to the annular gap 36 substantially parallel to a surface of the film tube and that the calibration gas flows through the annular gap 36 in a single flow direction.

APPARATUS FOR PROVIDING CONTROLLED COOLING OF THERMOPLASTIC STRANDS

Apparatus is provided for controlled cooling of thermoplastic strands between the time that they are extruded from a melt of thermoplastic material until they are cut into pellets by a pelletizer that pulls the strands into it. A first tray inclined downwardly from the extruder receives the strands which are sprayed with cooling liquid while in the tray. A second tray inclined upwardly from the bottom of the first tray toward the pelletizer receives the strands which are also sprayed while in the second tray. Cooling liquid is also introduced at the inlet end of the first tray. A gravity liquid removal screen is positioned at the low point of each tray to remove the cooling liquid from the trays. A vacuum system for removing cooling liquid from the strands may also be positioned between the higher end of the second tray and the pelletizer. The temperature and quantity of the cooling liquid sprayed on the first tray, that sprayed on the second tray, and that introduced at the inlet end of ...

PROCESS AND DEVICE FOR PRODUCING BUBBLE-FILM

The invention relates to a process for the fine correction of the thickness profile of a blown portion (10) in the production of bubble film in which the flow of cooling air (6) is varied in individual peripheral regions of the film bubble. According to the invention, at least part of the cooling air is taken via an exit slot (20) which is divided into individual separately fed segments in the peripheral direction of the film bubble and the supply of additional cooling air (4) via the exit slot (20) is, for example, controlled per segment using radial blowers (7). In this manner it is possible accurately to regulate the cooling action and thus the film thickness in the individual peripheral regions of the film bubbles.

Forming apparatus of compressing seat for manufacturing forming mat

sistema para controlar a posição de cubo de cortador em uma granuladora subfluido.

Liner-type barrel

Provided is a liner-type barrel which does not require shrink-fit or cooling-fit and by which a sleeve can be easily and efficiently embedded in the barrel at low cost. A liner-type barrel is provided with: a barrel body 2; a sleeve 8; and a fixation mechanism (fastening holes 11 and fastening tools 12). The barrel body has a cylindrical barrel hole 5 and a slit 6 which divides an internal circumference surface 5s of the barrel hole. In the barrel hole, the hollow cylindrical sleeve 8 is embedded so as to be removable. The slit has two notch surfaces 6s facing each other with an interval therebetween. The fixation mechanism reduces the mutual interval between the notch surfaces to deform the barrel body, thereby bringing the internal circumference surface of the barrel hole into intimate contact with the sleeve.

Apparatus and method for forming blown multi-layer film

A multi-layered blown film forming apparatus contains an adapter provided to supply a multiple types of resins, a forming die provided on a downstream side in an axial direction of the adapter, and a temperature controller mechanism. Molten resins of multiple types are individually fed to the forming die through the adapter. The forming die contains a main body, a multi-layer structure of a plurality of single-layer thin film dies disposed in an inner portion of the main body in an axial direction to produce a plurality of resin thin films corresponding to the molten resins of the multiple types, and a first annular path formed between main body and the multi-layer structure. A multi-layered thin film in which the plurality of resin thin films are overlaid is passed through the first annular path and is outputted as a multi-layered thin annular film. The temperature controller mechanism controls individual temperatures of the plurality of single-layer thin film forming dies independently ...

Method and system of controlled temperature mixing and molding of polymers with active agents for implantable medical devices

A method and system for making a composition for use in manufacturing an implantable medical device, such as a drug-eluting and/or delivery stent, is described. The method includes introducing a polymer, active agent, and a solvent into a mixing apparatus such as an extruder. The polymer, active agent, and solvent may be mixed in the apparatus to form a homogeneous or substantially homogeneous polymer mixture. The method may further include controlling a temperature of the polymer mixture in at least a portion of the apparatus. In an embodiment, the polymer mixture may be used as a coating for an implantable medical device, or fabricating an implantable medical device. The invention also includes a composition formed by the method described above.

Film size control apparatus for the blown film process

Apparatus for regulating the flow of refurbishing gas or air internally to tubular film produced by the blown film process, comprising a pair of opposed arm means or arms adapted to physically contact and sense growth or diminishment in the size of the film, as determined by the spacing between the arms, the arms being independently pivotable preferably about a common axis, or alternately parallel axis closely spaced to approximate a common arc of movement, a gas flow regulating valve comprising a pressurized gas line carried by one arm, at which vicinity it is interrupted to define a gap across which the gas stream flows prior to entering the film, a flow blockage valving means comprising preferably a valve plate fixed to the opposite arm, and having changing position in said gap responsive to relative movement between the arms, the valve plate defining an opening of tapered or variable width, which depending on alignment, partially hindered alignment, or non-alignment with the gas stream ...

СИСТЕМА ДЛЯ ФОРМОВКИ ТРУБЫ С УПРАВЛЕНИЕМ ВАКУУМОМИ ТЕМПЕРАТУРОЙ ОХЛАЖДАЮЩИХ ВТУЛОК

... 1. Система для формовки трубы, предназначенная для изготовления пластмассовой трубы и содержащая множество первых подвижных частей формовочных блоков и вторых подвижных частей формовочных блоков, при этом первые части формовочных блоков сближаются со вторыми частями формовочных блоков с формированием движущегося формовочного туннеля; средство для подачи расплавленной пластмассы в первую и вторую части формовочных блоков для формирования пластмассовой трубы и охлаждающую вставку для отверждения пластмассовой трубы в движущемся формовочном туннеле, причем указанная охлаждающая вставка разделена на первую ступень и вторую ступень, указанная первая ступень включает контур охлаждения и управляющее устройство для отвода от пластмассовой трубы такого количества тепла, которое достаточно для частичного отверждения пластмассовой трубы без ее чрезмерного охлаждения, а указанная вторая ступень включает контур охлаждения и продолжает отвод тепла от трубы для дальнейшего отверждения пластмассовой трубы ...

VERFAHREN ZUR DICKENREGELUNG EINES EXTRUDIERTEN KUNSTSTOFFGEGENSTANDES.

Improvements relating to slot-type die extrusion equipment

1,146,388. Extrusion/calendering machines. STEWART BOLLING & CO. Inc. 7 Aug., 1967 [25 Aug., 1966], No. 36197/67. Heading B5A. An extrusion/calendering machine for rubber or plastics comprises a two-part extrusion die 41, 42 the upper part 41 being connected to the calender frame (33), 34 and the lower part 42 being connected to a horizontally reciprocable extruder. Such an arrangement allows separation of the die parts to facilitate cleaning thereof. The extruder (B), Fig. 1 (not shown), is reciprocated by a double-acting fluid-pressure motor (20), and to ensure mating and correct alignment of the die parts when the extruder is moved towards the calender, keys 60, Fig. 2, and key slots 61 are provided, see also Fig. 3 (not reproduced), and the lower side faces 50 of the die part 42 are inclined and engage similarly inclined surfaces 51 on frame members 52, the die part being held in position by transversely movable wedge locks 65. Surfaces 51 are formed by replaceable wear plates 54, e.g. of hard bronze, and movement towards the calender is limited by adjustable stop-screws 55. Wedge locks 65 are reciprocated by fluidpressure motors (71), Fig. 3 (not shown). The extrusion orifice 43 is situated somewhat above the nip of calender rolls 30, 31 and during operation, die part 41 may be attached to the extruder by means of bolts 47. The contour of extrusion orifice 43 may be changed by replacing an insert 45. The extrusion die may comprise heating and cooling means.

CONTROLLING WIDTH OF PLASTICS FILM

PRESSURE BALANCING MEANS FOR CYLINDERS FOR INJECTION MOLDING

... 1,248,695. Injection moulding machines. XALOY Inc. 6 May, 1969, No. 22983/69. Heading B5A. An injection moulding cylinder 10 has a liner 22 and means for equalizing the pressure inside and outside the liner so as to prevent damage thereto when operating at pressures up to 50,000 p.s.i. The liner comprises an abrasion resistant coating on a cylinder 20 which is surrounded by an annular chamber 39 and outer casing 30. In Fig. 1 (not shown) the annular chamber is pressurized from the same source (60) as supplies a cylinder (57) for moving an injection screw longitudinally. In Fig. 2 a pressure sensor rod 82 senses the pressure in the bore of the injection nozzle 45 and controls a valve 71 in a conduit 77 connected to a pressure source 61. A pressure control device 80 is connected to the conduit 77 and to the annular chamber 39. The device 80 comprises a cylinder 83 containing a piston 84 joined to a piston 85 in a cylinder 86. The device 80 serves to isolate the fluid pressure source from ...

Procedure for the extrusion of thermoplastic material and Schneckenstrangpresse for the execution of the procedure

VACUUM EXTRUSION EQUIPMENT

COOLING DEVICE FOR EXTRUSION HEADS FOR PLASTIC SCHLAUCHFOLIEN

ÜBERWACHUNGSEINRICHTUNG FÜR EINE FORMGEBUNGSANLAGE

PROCEDURE AND DEVICE FOR THE PRESSURE CONTROL WITH AN A SNAIL DEGASSING EXTRUSION OR A CASCADE EXTRUSION

PROCEDURE FOR MAKING FOILS OF THERMOPLASTIC RESIN AND PLANT.

ÜBERWACHUNGSEINRICHTUNG FÜR EINE FORMGEBUNGSANLAGE

In the plant (1), a pressure sensor (34) is arranged between the air pump (31) and the outlet (37) of the air line (32) in the extrusion die (8) Preferred features: When actual pressure in the line equals a given threshold value, a signal is generated or varied. The pressure sensor is connected to a controller (36), connected in turn with the plant (1). The plant is stopped, when the appropriate signal is raised. The sensor precedes a valve (35) in the air line (32), which sets a given flowrate. Air pressure between pump and valve is 2-10 bar. The threshold value is no less than atmospheric pressure. It is 0.1-10 bar, preferably 0.1-3 bar greater than ambient. The threshold is 0.3-2 bar, preferably 0.5-1 bar greater than the back pressure caused by airflow in the connecting line between pump and outlet. Pressure sensor response time is 1-10 s. Air flows from the pump, through the line to the outlet region in the extrusion die (8). This flow path may be reversed and the given desired pressure ...

Device for processing thermoplastic material

DEVICE FOR PROCESSING THERMOPLASTIC MATERIAL

Method and device for regulating pressure in a single-srew degassing extruder or in a cascade extruder

PROCESS FOR MATTING THE SURFACES OF PLASTICIZER-CONTAINING POLYVINYL BUTYRAL SHEETING

A PROCEDURE AND DYE FOR MANUFACTURING PIPES AND SECTIONS OF THERMOPLASTIC PLASTICS

MEANS FOR IMPROVING THE UNIFORMITY-PERFORMANCE OF COLD FEED RUBBER-EXTRUDERS

MEANS FOR IMPROVING THE UNIFORMITY-PERFORMANCE OF COLD FEED RUBBER-EXTRUDERS The increasingly high standards of consistency and uniformity demanded of cold feed rubber extruders are met by providing notches in the flights of the screw at least in the feed-inlet of the extruder. The notches are at a lead-angle greater than that of the extruder screw flights, so to pull the rubber and advance it positively. Throttling means are used to adjust the amount of squash-back and there is an independently variable-speed drive for a feed roller in the feed inlet.

THICKNESS VARIATION ADJUSTMENT-TYPE AIR RING

Provided is a thickness variation-adjusting air ring capable of accurately and optimally controlling the volume of cooling air at all points in the circumferential direction and capable of stably manufacturing a synthetic resin film with excellent thickness variation. A thickness variation-adjusting air ring, which is set on the die of an inflation film-manufacturing apparatus and which, when forming a synthetic resin film by blowing cooling air on the outside of a molten synthetic resin tube extruded in the longitudinal direction to cool and solidify same, controls the volume of cooling air discharged from a cooling air flow channel locally in the circumferential direction to adjust the synthetic resin film thickness variation. The thickness variation-adjusting air ring: is provided with a ring-shaped flow channel-adjusting part disposed continuously in the circumferential direction inside the cooling air flow channel and multiple movement parts, which are connected at specified positions ...

DEVICE FOR COOLING A FILM, COMPRISING A LEVER SYSTEM

The invention relates to a device for cooling a film (1) which can be produced in a film extrusion system in particular, comprising a housing (11) that has at least one channel (12), at least one inlet opening (13), and at least one outlet opening (14) through which a cooling gas (2) can flow and comprising an adjusting arrangement (10) with which the cooling gas (2) volumetric flow rate that can flow out of the outlet opening (14) and the temperature of the cooling gas (2) that can flow out of the outlet opening (14) can be adjusted. According to the invention, the adjusting arrangement (10) comprises a lever system which has a movable actuator (15) and a movable valve element (16), said actuator (15) acting on the valve element (16) such that an actuating effect of the valve element (16) is reinforced.

Verfahren zur Nutzung der in einem Extrusionsprozess abgegebenen Wärmemenge

Die Erfindung betrifft ein Verfahren zum Nutzen der bei einem Extrusionsprozess während des Abkühlvorganges vom Extrudat (9) abgegebenen Wärmemenge (Q. ab), zum Trocknen oder Vorwärmen von Kunststoffgranulat wobei, ein Fluid, insbesondere Luft, entgegen der Extrusionsrichtung (11) entlang des Extrudats (9) und/oder durch das Werkzeug (2) geführt wird, mindestens ein Teil der Wärme vom Extrudat (9) und/oder dem Werkzeug (2) an das Fluid (15) übertragen wird, das erwärmte Fluid (15) aus einem ersten Teilbereich (12) der Prozesskette, umfassend wenigstens ein Werkzeug (2), eine Kalibrier- und Kühleinrichtung (3) und eine Abzugsvorrichtung (4), über einen Verbindungsbereich (13), vorzugsweise bestehend aus wenigstens einem Verbindungsrohr (10), einem zweiten Teilbereich (14) der Prozesskette, umfassend wenigstens eine Saugvorrichtung (8), zugeführt wird. Erfindungsgemäß ist dabei vorgesehen, dass die Temperatur (T) des Fluids (15) einen vorbestimmten Maximalwert (Tmax) nicht überschreitet, ...

Plastifizierzylinder

Die vorliegende Erfindung betrifft einen Plastifizierzylinder 20 für Extrusionsmaschinen und Spritzgussmaschine zum Verarbeiten von plastifizierbarem Material. Der Plastifizierzylinder 20 weist einen Druckmantel 3, eine Vielzahl von Wärmerohren 9 auf, welche innerhalb der Wandung des Druckmantels angeordnet sind, und umfasst auch wenigstens ein Heiz- und Kühlelement 5, 4. Die Erfindung ist dadurch gekennzeichnet, dass die Wärmerohre sich zwischen dem Bereich des Heiz- und Kühlelements, innerhalb des Druckmantels erstrecken und wenigstens abschnittsweise eine Kapillarstruktur 10 aufweisen.

Vakuumextrusionsanlage

METHOD OF MANUFACTURING ARTICLES

... 1407433 Curing rubber-covered cores DAINICHI-NIPPON CABLES Ltd and MITSUBA MFG CO Ltd 13 Nov 1972 [11 Nov 1971] 52397/72 Heading C3E [Also in Divisions B5 and Hl] A pre-dried core of an electric cable or a tube, is provided with a cured coating of screw extruded rubber or plastics material (see Divisions B4-B5) which is cured by passage of the extrusion through a heating medium means in surroundings at atmospheric pressure. Numerous conventional materials and curing agents are specified, and the core may comprise a stranded bare conductor, a plastics or rubber layer covered twisted conductor strand plurality with, or without, jute filler, rubber or plastics tubes, or a multilayered cured rubber or plastics tube which may contain a spring between the layers. In the examples using a stated eutectic salt mixture for curing; (1), (2) and (6), a core of three electric wires each covered with natural rubber insulation and jute, is extrusion coated with either natural rubber compound of stated ...

METHODS AND APPARATUS FOR COOLING MIXES SUCH AS CARBONACEOUS PARTICLE-PITCH MASSES BEING BLENDED

1287306 Cooling whilst blending BAKER PERKINS Inc 11 Dec 1969 [12 Dec 1968] 60533/69 Heading B1C [Also in Divisions Cl and F4] A method of cooling a mass, e.g. a carbonaceous particle-pitch mass, whilst blending it comprises introducing a liquid coolant into the mass, keeping the mass under a pressure sufficient to prevent vaporisation of the liquid coolant while blending the latter with the mass and passing the blended mass to a region of lower pressure so that the liquid coolant vaporises and thereby reduces the temperature of the mass. As shown, a carbonaceous particle-pitch mass may be fed via hopper 10 into the bore 11 in the barrel B of a mixer M. The barrel may be provided with teeth 12, 12' which are circumferentially spaced and project radially inwardly and which cooperate with interrupted helical threads or blades 13 on shaft 14, which is simultaneously rotated and reciprocated. One of the teeth may be provided with a bore through which liquid coolant, e.g. water or carbon dioxide, is injected into the mass in the bore of the barrel. The latter may be provided with annular passages 9, 9a through which heat transfer fluid(s) may be circulated. The temperature of the fluid circulated through passage 9a may be less than that of the fluid passed through passage 9. The blended mass may be discharged from the barrel into a section 24 open to atmosphere in which the liquid coolant vaporises and further mixing is continued before exit through opening 28. The rate at which liquid coolant is added may be regulated according to the temperature of the blend discharged through opening 28, the temperature being measured by means of a sensor 39.

APPARATUS FOR PROVIDING CONTROLLED COOLING OF THERMOPLASTIC STRANDS

VERFAHREN ZUR REGELUNG DER TEMPERATUR EINER KUNSTSTOFFMASSE IN EINEM EXTRUDER

Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zur Regelung der Temperatur einer Kunststoffmasse in einem Extruder, bei dem Wärme über Heizvorrichtungen (3) zugeführt wird, die am äußeren Umfang eines Extruderzylinders (1) angeordnet sind und wobei die Innentemperatur Ti im Inneren des Extruderzylinders (1) durch einen ersten Temperatursensor (4) gemessen wird und durch einen Regler auf einem vorbestimmten Sollwert gehalten wird. Eine verbesserte Regelung wird dadurch erreicht, daß zusätzlich eine Temperaturmessung an der Außenseite des Zylinders (1) vorgenommen wird und daß diese Außentemperatur Ta als Korrekturgröße bei der Regelung der Innentemperatur Ti berücksichtigt wird.

PROCEDURE AND SYSTEM FOR THE VACUUM EXTRUDING

VORRICHTUNG ZUR AUFBEREITUNG VON THERMOPLASTISCHEM KUNSTSTOFFMATERIAL

VORRICHTUNG ZUM KALIBRIEREN EINES AUS EINEM EXTRUDER KONITUIERLICHEN AUSTRETENDEN KUNST- STOFFPROFILES

POLYVINYLIDENE CHLORIDE RESIN PACKING FOIL AND MANUFACTURING PROCESS FOR IT

PLASTIFIZIERZYLINDER

METHOD AND APPARATUS FOR PRODUCING POLYBUTYLENE TEREPHTHALATE FILM, AND SHAPE-MEMORY POLYBUTYLENE TEREPHTHALATE LAMINATED FILM

INJECTION MOULDING

PROCESSING EXTRUDED ELASTOMERS

Attorney's File No. 1770002 PROCESSING EXTRUDED ELASTOMERS Method and apparatus for processing extruded thermoplastic material for use in siding by advancing the extrudate from the die member through a series of baths which size and shape the extrudate. The process sizes and cools the extrudate, and, thence, heat treats the extrudate followed by a final quenching of the extrudate in its final shape and size.

ADJUSTABLE VENTURI RING

An apparatus includes an upper lip positioned with respect to an air flow passage. The upper lip is to direct air flow from the air flow passage around a bubble of blown film. The apparatus further includes a Venturi ring movably mounted with respect to the upper lip and adjustable in position with respect to the upper lip. The Venturi ring is to adjustably lock the bubble of blown film.

SYSTEM FOR CONTROLLING CUTTER HUB POSITION IN UNDERFLUID PELLETIZER

A cutter hub position control device for consistent blade adjustment in an underfluid pelletizer is provided in connection with a motion rod attached to the pelletizer cutter hub and extending through a hollow shaft of the pelletizer motor. The cutter hub position control device can be collinear, transaxial or in a plane parallel to the axis of the motion rod to which it is attached. Adjustment of the cutter hub position control device is automated through use of feedback control mechanisms.

CALIBRATION DEVICE FOR CALIBRATING AN EXTRUDED FILM TUBE

Calibration device 15 for calibrating an extruded film tube 8 above the frost line 14, wherein an annular gap 36 is formed between the calibration device 15 and the film tube 8, comprising a plurality of calibration segments 16 distributed around a longitudinal axis L and forming a central feed through opening 26 for feeding through the film tube 8 along the longitudinal axis L, wherein the calibration segments 16 are adjustable for adjusting the diameter of the feed through opening 26, and at least one blowing nozzle 28 for each calibration segment 16, said at least one blowing nozzle 28 feeds a calibration gas to the feed through opening, that said at least one blowing nozzle 28 is formed such, that the calibration gas is guided to the annular gap 36 substantially parallel to a surface of the film tube and that the calibration gas flows through the annular gap 36 in a single flow direction.

METHOD OF PRODUCING A COEXTRUSION BLOWN FILM

This invention relates to a method of producing a coextrusion blown film is described. The method involves coextruding a blown film having 3 to 11 layers, including a first skin layer and a second skin layer, the first skin layer comprising nylon, and the second skin layer having a different melting temperature than the first skin layer. The film is then cooled before being passed through steam. The method can be used to produce a coextrusion blown film that has reduced curling.

Elasticity control method and device for elastic roll, and the elastic roll

WORKING METHOD FOR THE REGULATION OF THE LIP OPENING OF extrusiematrijsEXTRUSIEMATRIJS APPLIED FOR laagvormigLAAGVORMIG MATERIAL AND extrusiematrijsEXTRUSIEMATRIJS.

Method for producing thermoplastic resin composition pellet, extruder, and die plate

Provided is a technology to prevent drawbacks such as the decrease in product quality, the disturbance of stable molding, etc., caused by resin residue attached and accumulated near a discharge hole of a die plate for an extruder. An extruder is provided with a die plate comprising a discharge hole capable of discharging a material in a strand shape, and a first gas blowing part which blows gas to the discharged strand-shaped material, and the extruder is used to mold a thermoplastic resin composition in a molten state. More specifically, the first gas blowing part blows the gas to at least a part on a border line between the extruded strand-shaped material and the upper portion of the opening. Further, in the die plate, the shortest distance, on the discharge surface of the die plate, from the lower end of the opening of the discharge hole to the outer periphery of the die plate is 2 mm to 5 mm inclusive.

Device and method for the adjustment of the thickness profile in the production of blown films

A device arranged in the cooling ring of an apparatus for the production of blown films in order to adjust the thickness profile thereof is disclosed. The device includes a plurality of equally spaced motor-driven actuators that adjust the flow rate of the flow of a cooling fluid directed towards a forming cone, as well as a plurality of equally spaced resistances provided with finned dissipators arranged in the path of the cooling flow. In this way, the device combines the characteristics of low power consumption and high adjustment velocity of a volumetric device with the higher angular resolution achievable through the heating elements of a thermal device, and all of this with an operating method that prevents the risks of bubble instability or adhesion, achieves a high energy efficiency and guarantees a wide thickness adjustment range.

ПРОДОЛЬНО ОРИЕНТИРОВАННАЯ РУКАВНАЯ ПЛЕНКА

FIELD: method and apparatus for producing lengthwise oriented hose film. SUBSTANCE: apparatus includes outlet opening and exhaust unit; friction device arranged inside or outside bubble. Friction device is cooled from inside with use of cooling fluid. Friction between fluid flow and device is controlled by means of air lubrication with use of air fed under pressure through opening of friction device or through micro-porous metal or due to applying suction effort to flow in front of friction device. Extrusion out head is peripheral extrusion. Film produced by such method and apparatus includes mixture at least of two compatible polymers. Main stage of orientation is to be realized when one polymer is, mainly in crystallized state and other polymer is, mainly in melt condition. EFFECT: enhanced accuracy for regulating lengthwise orientation and(or) making it highly stable. 45 cl, 6 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 300 461 (13) C2 (51) ÌÏÊ B29C 55/28 B29C 47/88 (2006.01) (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2004114261/12, 14.10.2002 (72) Àâòîð(û): ÐÀÑÌÓÑÑÅÍ Îëå-Áåíòò (CH) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 14.10.2002 (73) Ïàòåíòîîáëàäàòåëü(è): ÐÀÑÌÓÑÑÅÍ Îëå-Áåíòò (CH) R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 12.10.2001 TW 90125310 15.10.2001 EP PCT/EP01/12430 (43) Äàòà ïóáëèêàöèè çà âêè: 20.04.2005 2 3 0 0 4 6 1 (45) Îïóáëèêîâàíî: 10.06.2007 Áþë. ¹ 16 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 5102320 À, 07.04.1992. US 4626397 A, 02.12.1986. US 4973442 A1, 27.11.1990. RU 2156782 C1, 27.09.2000. RU 2106973 C1, 20.03.1998. 2 3 0 0 4 6 1 R U (86) Çà âêà PCT: EP 02/12193 (14.10.2002) C 2 C 2 (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 12.05.2004 (87) Ïóáëèêàöè PCT: WO 03/033241 (24.04.2003) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ñ.À.Äîðîôååâó (54) ...

WATER LEVEL REGULATION FOR THE COOLING INSTALLATION OF AN EXTRUSION LINE

Modification of polyolefins

Improved air pressure control for corrugator

In the manufacture of double-walled corrugated extruded pipe it is desirable to form an integral connecting cuff that is of a single wall thickness and typically of a large diameter. The mold blocks and process parameters for forming of the cuff as part of an otherwise double-walled pipe requires a transition as the cuff moves past the die outlets. The present invention allows for accurate sensing and control of air pressure and temperature as the cuff moves past the die outlets. Improvements in both the die tooling and the method of manufacture are disclosed.

Vacuum extrusion system and method

EXTRUDING FOLLOWED BY COOLING AND LUBRICATING OF THE EXTRUDATE

EXTRUDING Method and apparatus for plasticizing thermoplastic material, advancing the extrudate through a die member to a desired size and shape, and thence cooling the extrudate immediately at the die member that is insulated from the cooling means. A cooling and sizing device is downstream from the die member to facilitate the molding of the extrudate to the final size and shape.

PROCEDURE FOR MANUFACTURING PIPES AND SECTIONS OUT OF THERMOPLASTIC PLASTICS

A procedure for manufacturing pipes and sections out of thermoplastic plastics in which these substances are expelled through a revolving opening and the temperature in the area of the opening is controlled. To hold the wall thickness of the section or pipe produced during such a procedure constant, the change in the wall thickness of the pipe which comes about as a function of the change in temperature in the area of the opening is determined and the temperature is regulated depending on the correlation and the given set wall thickness, where the temperature in the area of the opening is regulated separately section by section, with the latter sections extending in the circumferential direction of the opening.

Apparatus for Providing Controlled Cooling of Thermoplastic Strands

СПОСОБ ХРАНЕНИЯ ЖИДКОСТИ В БАКЕ

Использование: способы выдержки жидкостей в технологических емкостях. Сущность изобретения: способ хранения жидкости в баке, в котором бак имеет входное и выходное отверстия и подвижный ведомый элемент с одним из отверстий, причем жидкость одновременно и непрерывно поступает и уходит из бака, и объем жидкости в баке изменяется с перемещением ведомого элемента в ответ на изменения скоростей поступления и удаления жидкости. 12 з. п. ф-лы, 2 ил. $16 0с ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК (13) ВИ” 2 097 313 Вб7 О 5/34 СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 95104878/13, 20.07.1993 (30) Приоритет: 22.07.1992 СВ 9215570.4 (46) Дата публикации: 27.11.1997 (56) Ссылки: 1. СВ, патент М 841403, кл. 69/2 АЛ, 1960. 2. ОЕ, патент М 3416899, кл. А 23 С 3/28, 1988. (86) Заявка РСТ: СВ 93/01524 (20.07.93) (71) Заявитель: Кортолдс ПЛС (СВ) (73) Патентообладатель: Кортолдс ПЛС (СВ) (72) Изобретатель: Майкл Роберт Перри[СВ] (54) СПОСОБ ХРАНЕНИЯ ЖИДКОСТИ В БАКЕ (57) Реферат: Использование: способы элемент с одним из отверстий, ЖИДКОСТЬ одновременно и ф-лы, 2 ил. выдержки жидкостей в технологических емкостях. Сущность изобретения: способ хранения жидкости в баке, в котором бак имеет входное и выходное отверстия и подвижный ведомый причем непрерывно поступает и уходит из бака, и объем жидкости в баке изменяется с перемещением ведомого элемента в ответ на изменения скоростей поступления и удаления жидкости. 12 3. п. АЗ ызьчьчь Чычечь ль й В И САИ д р |[`——. Г оды И [о 1244 05 К р ина й Е > м Ск 124 1 7юв 125 2097313 С1 КО $16 0с ПЧ ГЭ КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ ЗВ ‘” 2 097 313 Сл (51) 1пЕ. С1.6 12) АВЗТКАСТ ОЕ 1МУЕМТОМ В 670 5/34 (21), (22) АррИсаНоп: 95104878/13, 20.07.1993 (30) Рношу: 22.07.1992 СВ 9215570.4 (46) Бае ог ричбИсаНоп: 27.11.1997 (86) РСТ аррИсанНоп: СВ 9301524 (20.07.93) (71) АррИсапе: КоПо!4$ РЕЗ (СВ) (72) |пуетог: Мак КоБет Рег[СВ] (73) Ргорпеюг: КоЦпо!а$ РЕЗ (СВ) (54) МЕТНОО ОЕ ЗТОЮМС ...

Method for starting up a processing plant for producing plastics material granulate and processing plant for producing plastics material granulate

In a processing plant for producing plastics material granulate, the start-up takes place in such a way that a screw machine is firstly driven by means of a drive device and then plastics material to be processed is fed by means of a metering device into the screw machine. At least one conveying position of the plastics material in the screw machine is determined by means of a control device by evaluating at least one measuring signal. Depending on the conveying position determined, a granulating device is activated and put into operation. The method according to the invention allows a direct start-up of the processing plant without the use of a start-up valve. This ensures an easy and safe start-up of the processing plant.

Method and device for controlling the temperature of polymer melt

A method for controlling the temperature of a polymer melt in an extrusion tool includes flowing the polymer melt via at least one flow channel from an input to an output and around at least one temperature-control element in the at least one flow channel. The temperature control element includes a plurality of temperature control units. The temperature of the polymer melt flowing around the temperature-control element is controlled by individually controlling each of the temperature-control units so as to vary a degree of temperature control of the temperature-control element such that a degree of temperature control is controllable to be the same or different at locations throughout the temperature control-element.

Extrusion Process

A method for using the quantity of heat output from an extrudate during a cooling operation in an extrusion process, wherein a fluid, in particular air, is guided along the extrudate and/or through the die counter to an extrusion direction, at least some of the heat from the extrudate and/or the die is transmitted to the fluid, the heated fluid is supplied from a first sub region of a process chain, comprising at least one die, a calibrating and cooling device and a take-off apparatus, via a connecting region, preferably consisting of at least one connecting pipe, to a second sub region of the process chain, comprising at least one suction apparatus. In the connecting region, an extraneous fluid can be added to the heated fluid in order to reduce the actual temperature of the heated fluid at least below a predetermined maximum value before said fluid is supplied to the second sub region of the process chain.

Calibration device for calibrating an extruded film tube

A calibration device for calibrating an extruded film tube, above the frost line, forms an annular gap between the calibration device and the film tube. The calibration device includes a plurality of calibration segments and at least one blowing nozzle. The plurality of calibration segments are distributed around a longitudinal axis and form a central feed through opening for feeding through the film tube along the longitudinal axis. The calibration segments are adjustable for adjusting the diameter of the feed through opening. The at least one blowing nozzle for each calibration segment, feeds a calibration gas to the feed through opening. The at least one blowing nozzle is formed such, that the calibration gas is guided to the annular gap substantially parallel to a surface of the film tube and that the calibration gas flows through the annular gap in a single flow direction.

Method for Adjusting the Profile of a film in Blown Extrusion Lines, Adjusted Film and Reel

A method for the active adjustment of the profile of a film produced with blown extrusion technology, a film obtained with such method and a reel resulting from the winding of the film. 1. A method for active adjustment of a monolayer or multilayer film profile , in an extrusion line with blown technology , said method comprising:a step of actively adjusting the film profile, wherein said film profile is generated with a sinusoidal wave, transversely movable, with an amplitude substantially equal to a profile tolerance reached with a basic adjustment of the film profile and having a variable sliding frequency,wherein the step of actively adjusting the film profile is performed with a disk with “n” segments, physically divided by metal sectors or any other compatible material, which regulate quantity, temperature, or both the quantity and the temperature of a flow of cooling air,wherein the sinusoidal wave has the amplitude and a frequency proportional to an extent of a defect not corrected by a basic adjustment system of the film profile,wherein the amplitude of the sinusoidal wave is defined in an initial development step of film production, andwherein a thickness is detected, and consequently profile defects, in each point of a film produced with the basic adjustment.2. (canceled)3. The method according to claim 1 , wherein the sinusoidal wave is defined by a control algorithm.4. (canceled)5. The adjustment method according to claim 1 , wherein the frequency of the sinusoidal wave is defined in a first production session of the film with application of the sinusoidal wave having a defined amplitude.6. A monolayer or multilayer film having a profile obtained with a method for active adjustment of a monolayer or multilayer film profile claim 1 , in an extrusion line with blown technology claim 1 , said method comprising:a step of actively adjusting the film profile, wherein said film profile is generated with a sinusoidal wave, transversely movable, with an ...

Process for producing films, especially those based on polyvinyl butyral with a slight surface tackiness

Solvent removal from polymer solutions

By cooling the barrel of a devolatilizing extruder rather than by heating it, both the solvent removal rate and the polymer feed rate could be increased; furthermore, the power surging of the motor driving the extruder was largely reduced or even eliminated by the process of this invention.

System For Controlling Cutter Hub Position In Underfluid Pelletizer

유중 펠렛제조기의 커터 허브에 부착되고 상기 펠렛제조기 모터의 중공 샤프트를 통과하여 연장되는 운동봉과 관련하여, 유중 펠렛제조기에서 일정한 블레이드 조정을 위한 커터 허브 조절장치가 제공된다. 상기 커터 허브 조절장치는, 그것이 부착되는 운동봉의 축과 동일 선상에 있거나, 직각 축방향으로 있거나, 혹은 평행인 면상에 있을 수 있다. 상기 커터 허브 조절장치의 조정은 피드백 조절 기구를 사용하여 자동화된다. A cutter hub adjuster for a constant blade adjustment in a pelletizer is provided in connection with a motion bar attached to a cutter hub of a pelletizer of a pelletizer and extending through a hollow shaft of the pelletizer motor. The cutter hub adjuster may be on the same line, in a right-angled axial direction, or on a parallel plane with the axis of the moving rod to which it is attached. The adjustment of the cutter hub adjuster is automated using a feedback adjustment mechanism.

Shape-memory laminated polybutylene terephthalate film, production process and use thereof, and process for production of polybutylene terephthalate film

본 발명은, (1) 폴리부틸렌 테레프탈레이트 필름과 다른 필름 또는 필름 적층체를 접착하여 얻어진 적층 필름을, 제1 형상으로 유지시키면서, 상기 폴리부틸렌 테레프탈레이트의 유리 전이 온도 이하의 온도(T 1 )에서 부형 처리하고, (2) 얻어진 부형 적층 필름을, 상기 유리 전이 온도보다 높은 온도(T 2 )에서 제2 형상으로 변형 가공한 다음, (3) 상기 유리 전이 온도 이하의 온도(T 3 )으로 냉각시킴으로써 얻어지는, 우수한 형상 기억성과 내열 치수 안정성을 갖는 폴리부틸렌 테레프탈레이트 적층 필름에 관한 것이다. The present invention provides a temperature (T) below the glass transition temperature of the polybutylene terephthalate while (1) maintaining the laminated film obtained by adhering the polybutylene terephthalate film and another film or film laminate in a first shape. 1 ) the shaping treatment in (2), (2) the resulting laminated laminate film is deformed into a second shape at a temperature (T 2 ) higher than the glass transition temperature, and (3) a temperature below the glass transition temperature (T 3 The present invention relates to a polybutylene terephthalate laminated film having excellent shape memory and heat resistance dimensional stability obtained by cooling with). 폴리부틸렌 테레프탈레이트 필름, 적층, 유리 전이 온도, 형상 기억, 내열 치수 안정성 Polybutylene Terephthalate Film, Lamination, Glass Transition Temperature, Shape Memory, Heat Resistance Dimensional Stability

Modification of polyolefins

Method of and apparatus for controlling the viscosity of molten plastics material which is to be moulded

A plastics extruder in operative association with a control arrangement is disclosed. The plastics extruder includes a screw extruder, a screen downstream of the screw extruder, a throttle located between the screw extruder and the screen, a moulding tool downstream of the screen, and a melt index measuring device. The measuring device includes a metering pump whose rotational speed is controllable and which is provided with a rotational speed indicator, a measuring nozzle disposed in a sample flow channel, and pressure and temperature sensors connected to the sample flow channel directly upstream of the inlet of the measuring nozzle. The sample flow channel is adapted to be located downstream of the screen pack and upstream of the moulding tool. For the purpose of regulating the viscosity of the plastics material melted in the screw extruder, the throttle cross-section is variable by a servomotor connected to the output of a programmable two-coordinate controller. The characteristic of the controller provides a desired value output and can be predetermined as a temperature-pressure characteristic when the metering pump is operated with constant delivery, or as a temperature-delivery characteristic when the metering pump is operated with a constant pressure drop via the measuring nozzle while the temperature sensor is connected to one of two actual value inputs of the two coordinate controller. Either the pressure sensor or the rotational speed indicator is connected to the second actual value input.

Process of producing thermoplastic resin sheet and equipment therefor

Process of producing thermoplastic resin sheet and equipment therefor

This invention relates to a process of producing a thermoplastic resin sheet and equipment therefore. The equipment includes a first extruder of a high kneading type, a second extruder of a low kneading type and an extrusion die. A film-shaped resin extruded from the extrusion die is cooled by a cooling device, to thereby obtain the resin sheet. Additionally, a difference between pressures at the outlets of the first and second extruders is detected, and, in response to this difference between the pressures thus detected, the operating conditions of the first extruder are automatically controlled.

Plastic parts made from plastics having different melting points and a method of manufacturing same

A method of recycling a mixed plastic waste comprising plastics having different melting temperatures includes conveying the mixed plastic waste through an extruder such that at least some of the higher melting point plastic is passes through the extruder without melting and is present in the extrudate as solid material.

Blowing head for the manufacture of tubular film from thermoplastic synthetic resin

A blowing head for the manufacture of tubular film from thermoplastic synthetic resin includes ducts for the supply and removal of internal cooling air, at least one supply duct for fused synthetic resin which opens into an annular outlet nozzle, an external cooling ring encircling the extruded synthetic resin film and a supply of air at different temperatures to sectors of the external cooling ring which are distributed over the periphery of the extruded tubular film for differentially heating or cooling the film.

Extruded foaming thermoplastic polyurethane elastomer particles and preparation method thereof

本发明涉及一种挤出发泡热塑性聚氨酯弹性体粒子及其制备方法，所述粒子包括以下重量份的成分：100重量份的热塑性聚氨酯弹性体，0.01～0.5重量份的发泡成核剂，0.01～0.2重量份的抗氧剂，所述制备方法为：先将物料混合，然后将混合物投入挤出机造粒得到适于发泡的珠粒原料，最后将上述珠粒投入发泡专用挤出机，经口模发泡后水下切粒，制得产品粒子。本发明利用挤出法制备热塑性聚氨酯发泡粒子，控制发泡工艺条件，得到密度可控的发泡粒子，粒子泡孔密度分布均匀，整体生产方法操作简单，对设备没有特设限制要求，适合工业连续化生产。

Method and apparatus for producing polybutylene terephthalate film, and shape-memory polybutylene terephthalate laminated film

본 발명은, 환형 다이로부터 압출된 용융 폴리부틸렌 테레프탈레이트 수지 튜브를 공기 주입에 의해 팽창시키는 공랭 인플레이션법을 이용하여 폴리부틸렌 테레프탈레이트 필름을 제조하는 단계를 포함하며, 상기 압출 수지 온도를 상기 폴리부틸렌 테레프탈레이트 수지의 융점-15℃∼상기 융점-5℃로 하고, 상기 압출 수지 압력을 8.3∼13.7 ㎫로 하는 것을 특징으로 하는, 폴리부틸렌 테레프탈레이트 필름을 제조하는 방법을 제공한다. 폴리부틸렌 테레프탈레이트 필름, 형상 기억성, 공랭 인플레이션, 포장재, 압출 The present invention includes preparing a polybutylene terephthalate film using an air-cooled inflation method of expanding a molten polybutylene terephthalate resin tube extruded from an annular die by air injection, wherein the extruded resin temperature is Provided is a melting point of 15 ° C. to 5 ° C. of polybutylene terephthalate resin, and the extrusion resin pressure is 8.3 to 13.7 MPa. A method for producing a polybutylene terephthalate film is provided. Polybutylene Terephthalate Film, Shape Memory, Air Cooling Inflation, Packaging, Extrusion

ARRANGEMENT OF A MELT INDEX MEASURING DEVICE BEHIND THE SCREEN PACKAGE OF A PLASTIC EXTRUDER AND A PROCESS FOR REGULATING THE VISCOSITY OF MOLTEN PLASTIC AND TO BE MOLDED

Multi-layered blown film forming apparatus and multi-layered blown film forming method

A multi-layered blown film forming apparatus contains an adapter provided to supply a multiple types of resins, a forming die provided on a downstream side in an axial direction of the adapter, and a temperature controller mechanism. Molten resins of multiple types are individually fed to the forming die through the adapter. The forming die contains a main body, a multi-layer structure of a plurality of single-layer thin film dies disposed in an inner portion of the main body in an axial direction to produce a plurality of resin thin films corresponding to the molten resins of the multiple types, and a first annular path formed between main body and the multi-layer structure. A multi-layered thin film in which the plurality of resin thin films are overlaid is passed through the first annular path and is outputted as a multi-layered thin annular film. The temperature controller mechanism controls individual temperatures of the plurality of single-layer thin film forming dies independently.

Extruder

The present invention relates to an extruder which can effectively melt raw materials and, more specifically, to an extruder comprising: a hopper into which raw materials are added; a barrel portion having an upper barrel coupled to a lower end portion of the hopper and a lower barrel coupled to a lower portion of the upper barrel and forming a transfer space portion and an installation fixing groove therein together with the upper barrel; a twin screw disposed in the transfer space portion and pressurizing and transferring the raw materials supplied from the hopper in the longitudinal direction of the barrel portion; and a high frequency induction heating portion installed in the installation fixing groove, having a through hole through which the twin screw is inserted, and heating the twin screw in a part passing through the through hole.

Continuous mixer with screw discharge control

An internal mixer with parallel mixing rotors and a screw controlled discharge. The material discharge rate is controlled by operation of a screw in a conduit from the mixing chamber through which mixed material is discharged. Preferably, the screw is a part of a screw-type extruder and further conditions and extrudes the material.

Process of producing thermoplastic resin sheet and equipment therefor

This invention relates to a process of producing a thermoplastic resin sheet and the like and a an equipment. The equipment includes a first extruder (3) of a high kneading type, a second extruder (5) of a low kneading type and an extrusion die (30). A film-shaped resin extruded from the extrusion die (30) is cooled by a cooling device (20), to thereby obtain the resin sheet (38) and the like. Furthermore, a difference between pressures at the outlets of the first and second extruders is detected, and, in response to this difference between the pressures thus detected, the operating conditions of the first extruder are automatically controlled.

Process for producing films especially those based on polyvinyl butyral with a slight surface tackiness

Films based on polyvinyl butyral, or on polymers with similar properties, are produced with little tackiness by extruding from a wide slit die and making the plasticated melt into a film with a feed passage, manifold and outlet in the die. Beyond the menifold, the slit die is brought to a temp. which is lower than elsewhere so that a temp. difference is produced between the surface and the centre of the stream of melt which is forming the film; the resultant shear effect in the solidifying melt stream produces a roughened surface on the film and hence a low surface tackiness. The film is produced without any surface embossed effects or undercuts in its surface.

Crush Roller Granulator and Use Thereof

본 발명은 원통형 가압롤러(2)와 톱니 파쇄롤러(3)를 구비한 파쇄롤러 조립기로써, 파쇄롤러(3)의 기어(4)는 톱니 루트영역(7)과 톱니 선단영역(8) 사이에 위치한 톱니 플랭크(5, 6)를 구비하여, 톱니 루트영역(7)을 톱니 선단영역(8)의 외부직경(D)보다 작은 외부직경(d)을 가지고, 파쇄 롤러(3)의 톱니 선단영역(8)은 중앙 파쇄존(10)을 포함하여 3개의 파쇄 존(9, 10, 11)을 포함하고, 파쇄존은 중앙 파쇄존(10)의 영역에서 최소거리(a)를 가진 상태로 원통형 가압롤러(2)로부터 상이한 거리를 규정하고, 톱니 플랭크(5, 6)의 윤곽 및 파쇄롤러(3)의 톱니 루트영역(7)이 원통형 가압롤러(2)의 윤곽과 협업하여 형성될 조립물 쿠션(12)의 최대 단면적을 규정하는 것을 특징으로 하는 파쇄롤러 조립기(1)와 관련된다. The present invention is a crushing roller assembly machine equipped with a cylindrical pressing roller (2) and a toothed crushing roller (3), and the gear (4) of the crushing roller (3) is between the tooth root region (7) and the tooth tip region (8). With the toothed flanks 5 and 6 located, the tooth root region 7 has an outer diameter d smaller than the outer diameter D of the tooth tip region 8, and the tooth tip region of the crushing roller 3 (8) includes three crushing zones (9, 10, 11) including the central crushing zone 10, and the crushing zone is cylindrical with the minimum distance (a) from the area of the central crushing zone (10). An assembly to be formed in cooperation with the contour of the cylindrical pressure roller 2 by defining different distances from the pressure roller 2, and the contours of the toothed flanks 5 and 6 and the tooth root area 7 of the crushing roller 3 It relates to a crushing roller granulator (1), characterized in that it defines a maximum cross-sectional area of the cushion (12).

Device for controlling the temperature of an extruder or a plasticising cylinder

The object of the invention is a device for controlling the temperature of an extruder or a plasticising cylinder by means of a fluid or gas, wherein the device comprises at least one heating element (6, 60b, 60c) and at least one cooling element (6, 16, 60a) arranged over the length of the extruder and on the perimeter of the extruder, wherein the at least one heating element is connected to a least one heating circuit and the at least one cooling element (6, 16, 60a) is connected to at least one cooling circuit, wherein the at least one heating circuit and the at least one cooling circuit are connected to one another via a common return-flow reservoir (7), wherein both the cooling circuit and the heating circuit comprise at least one bi-directionally operating pump (5, 50a, 50b, 50c).

Elasticity control method and device for elastic roll, and the elastic roll

본 발명은 용융수지 시트를 냉각하기 위하여 금속 탄성 롤 내부로 유체가 순환하는 순환유로를 형성하는 금속 탄성 롤에 있어서, 소정의 압력으로 유체가 순환하는 순환유로 내를 가압 또는 감압 조절함으로써, 유체의 압력이 조절되고, 압력이 조절된 유체에 의해 금속 탄성 롤의 탄성도가 조절되는 금속 탄성 롤의 탄성도 조절 방법 및 장치, 그리고 금속 탄성 롤에 관한 것이다. The present invention relates to a metal elastic roll forming a circulation flow path through which a fluid circulates inside the metal elastic roll to cool a molten resin sheet. By adjusting the pressure or pressure in the circulation flow path through which the fluid circulates at a predetermined pressure, The present invention relates to a method and apparatus for regulating the elasticity of a metal elastic roll in which the pressure is regulated, and the elasticity of the metal elastic roll is adjusted by the pressure-controlled fluid, and to the metal elastic roll.

A kind of Rice Cropping whole life cycle design and its production method

本发明提供了一种水稻种植用全生物降解地膜及其制备方法，所述水稻种植用全生物降解地膜包括内层、中层和外层，包括PBAT、PLA、PHA、PPC等成分，所述全生物降解地膜的内层、中层和外层由三层共挤出技术制备。本发明的水稻种植用全生物降解地膜及其制备方法至少有以下优点：水稻生长期缩短、出米率增加、水稻品质提高；节省了人工除草费用，减少了农药用量，减少了农药残留；通过厚度减薄来降低用户的使用成本，同时通过三层共挤工艺，添加功能助剂解决了现有全生物降解地膜耐水解性能差，不适合水稻的种植条件的问题。降解性能可控性好，满足作物的生长要求。价格较国外同类产品低5％左右。

Squeezing-roll granulator, granulating system comprising same, and use of the squeezing-roll granulator

본 발명은 톱니형 가압롤러(2)와 톱니형 파쇄롤러(3)로 구성된 스퀴징 롤러 쌍(60)을 갖는 스퀴징 롤러 조립기에 관한 것으로, 상기 가압롤러 및 상기 스퀴징롤러의 톱니(4)가 톱니 루트영역(7) 및 톱니 선단 영역(8, 8') 사이에 위치된 톱니 측부(5, 6)를 구비하며, 상기 톱니 루트영역은 상기 톱니 선단영역의 외경(D) 보다 작은 외경(d)를 가지고, 상기 스퀴징 롤러 쌍의 상기 가압롤러 및 상기 스퀴징롤러 중 하나 이상의 톱니 선단 영역은 중앙 스퀴징존(10)을 포함하여 3개의 스퀴징존들(9, 10, 11)을 포함하고, 3개의 스퀴징존들은 상기 중앙 스퀴징존의 영역 내 최소 간격(a)을 갖는 상기 선단 영역 사이의 상이한 간격을 형성하고, 상기 스퀴징 롤러 쌍의 상기 가압롤러 및 상기 스퀴징롤러의 톱니 루트영역 및 상기 톱니 측부의 윤곽이 형성될 조립물 쿠션(12)의 최대 단면적을 형성한다. The present invention relates to a squeezing roller granulator having a pair of squeezing rollers (60) composed of a toothed pressure roller (2) and a toothed crushing roller (3). has a toothed side (5, 6) positioned between a tooth root area (7) and a tooth tip area (8, 8'), the tooth root area having an outer diameter smaller than the outer diameter (D) of the tooth tip area ( d), wherein the tooth tip region of at least one of the pressing roller and the squeezing roller of the pair of squeezing rollers includes three squeezing zones (9, 10, 11) including a central squeezing zone (10), , the three squeezing zones form different spacings between the tip regions having the minimum spacing a in the region of the central squeezing zone, the pressure roller of the pair of squeezing rollers and the tooth root region of the squeezing roller and The toothed side forms the maximum cross-sectional area of the assembly cushion 12 to be contoured.

Tank Operation in Regenerated Cellulose Manufacturing Process

이 발명은 탱크(101)내에 액체를 저장하는 방법에 관한 것으로서, 탱크는 유입구와 배출구(117,127) 및 출입구(117)를 갖고 있는 가동성 구동체(111)를 갖고 있으며, 액체는 단속적 및 연속적으로 탱크내로 주입 및 배출되며 탱크 내의 액체 용량은 구동체(11)가 공급 및 수요 속도의 변동치에 감응하여 이동하는데 따라 변경됨. The present invention relates to a method for storing liquid in a tank (101), wherein the tank has a movable drive (111) having an inlet and an outlet (117, 127) and an outlet (117), the liquid being intermittently and continuously in the tank. The volume of liquid in the tank changes as the drive 11 moves in response to changes in supply and demand rates.

Squeeze roll granulator, granulation system comprising such a squeeze roll granulator and use of such a squeeze roll granulator

一种挤压辊造粒机，其具有由带齿的压紧辊(2)和带齿的挤压辊(3)组成的挤压辊对(60)；压紧辊(2)和挤压辊(3)的齿(4)具有位于齿根区域(7)和齿顶区域(8、8’)之间的齿面(5、6)，齿根区域(7)的外直径(d)小于齿顶区域的外直径(D)，并且，挤压辊对(60)的辊(2、3)中的至少一个的齿顶区域(8、8’)具有包括中间挤压区域(10)的三个挤压区域(9、10、11)，这些区域限定与齿顶区域(8、8’)之间的不同距离，并在中间挤压区域(10)的区域中具有最小距离(a)，并且，挤压辊对(60)的辊(2、3)的齿面(5、6)的轮廓和齿根区域(7)的轮廓限定待形成的粒料包(12)的最大横截面。

Induction heating roll device

Amorphous thermoplastic resin film, metallized film for capacitor, film roll, and capacitor

本发明提供高温下具有高的绝缘击穿强度、厚度薄、且具有优异的狭缝加工适应性的非晶态热塑性树脂膜。一种非晶态热塑性树脂膜，其包含玻璃化转变温度(Tg)为130℃以上且小于200℃的非晶态热塑性树脂以及选自二氧化硅和碳酸钙中的至少一种粒子，上述粒子的平均粒径为0.1μm以上且1.5μm以下，上述粒子的含有率为0.1质量％以上且1.5质量％以下，厚度为9.5μm以下。

Process for producing films, especially those based on polyvinyl butyral with a slight surface tackiness

1. Process for the production of foils (4) with low surface adhesivity from a plasticised melt (A) having a plasticiser-containing polyvinylbutyral basis or a basis or polymers with similar properties, by extrusion with a broad slit tool (1), wherein the plasticised melt (A) is shaped with the wide slit tool (1) with input channel (10), distribution channel (11) and outlet gap (13) to form a foil, characterized in that the wide slit tool (1) is subjected in a region which - seen in the extrusion direction - is after the distribution channel (11), to a temperature which is so much lower than the remaining wide slit tool (1) that a temperature difference between the surface and the interior of the flow of melt (A) shaped to the foil is produced so that a roughening of the foil surface and accordingly a low surface adhesivity is produced as a result of the shearing of the solidifying melt flow taking place as a result, and that the foil emerging from the wide slit tool (1) is guided into a water bath (5) with a water temperature in the region of 2 to 40 degrees C.

Manufacture of sheet having low surface adhesion

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

PROCESS FOR THE PRODUCTION OF LAMINATES

Process for manufacturing foil like interlayer for safety glass

1. Process for the production of foils (4) with low surface adhesivity from a plasticised melt (A) having a plasticiser-containing polyvinylbutyral basis or a basis or polymers with similar properties, by extrusion with a broad slit tool (1), wherein the plasticised melt (A) is shaped with the wide slit tool (1) with input channel (10), distribution channel (11) and outlet gap (13) to form a foil, characterized in that the wide slit tool (1) is subjected in a region which - seen in the extrusion direction - is after the distribution channel (11), to a temperature which is so much lower than the remaining wide slit tool (1) that a temperature difference between the surface and the interior of the flow of melt (A) shaped to the foil is produced so that a roughening of the foil surface and accordingly a low surface adhesivity is produced as a result of the shearing of the solidifying melt flow taking place as a result, and that the foil emerging from the wide slit tool (1) is guided into a water bath (5) with a water temperature in the region of 2 to 40 degrees C.

METHOD FOR PRODUCING FOILS, ESPECIALLY ON THE BASIS OF POLYVINYLBUTYRAL WITH LOW SURFACE ADHESION

Es wird ein Verfahren zur Herstellung von Folien mit geringer Oberflaechenklebrigkeit auf der Basis von Polyvinylbutyral oder von Polymeren mit aehnlichen Eigenschaften durch Extrusion mit einem Breitschlitzwerkzeug beschrieben, bei dem die plastifizierte Schmelze in dem Breitschlitzwerkzeug zu einer Folie geformt wird, wobei das Breitschlitzwerkzeug in einem Bereich, der - in Extrusionsrichtung betrachtet - nach dem Verteilerkanal liegt, auf eine um soviel niedriger liegende Temperatur als das uebrige Breitschlitzwerkzeug temperiert wird, dass eine Temperaturdifferenz zwischen der Oberflaeche und dem Kern des zur Folie geformten Schmelzstromes erzeugt wird, so dass durch die hierdurch entstehende Scherung des erstarrenden Schmelzstromes ein Aufrauhen der Folienoberflaeche und damit eine geringe Oberflaechenklebrigkeit erreicht wird. Die nach diesem Verfahren hergestellten Folien eignen sich insbesondere zur Herstellung von Sicherheits-Verbundglaesern. The invention relates to a process for the production of films with low surface tack on the basis of polyvinyl butyral or polymers with similar properties by extrusion with a slot die in which the plasticized melt is formed into a sheet in the slot die, wherein the slot die is in a range which, viewed in the direction of extrusion, lies after the distribution channel, is tempered to a temperature lower than the rest of the wide-width die, so that a temperature difference is generated between the surface and the core of the film-shaped melt stream, so that the resulting shearing of the film roughening of the film surface and thus a low surface tack is achieved. The films produced by this process are particularly suitable for the production of security laminated glass.

Process for producing films, especially those based on polyvinyl butyral with a slight surface tackiness

FOERFARANDE FOER FRAMSTAELLNING AV EN SKIVA, VILKEN AER SPECIELLT FORMAD AV POLYVINYLBUTYRAL OCH MED LAOG YTKLIBBIGHET.

Process for producing surface layers of low-adhesive polyvinyl-butyzal

Method of obraining foil,in particular polyvinyl butyral based one,of low surface stickiness

Process for making foil with small surface adhesivenes from polyvinylbuthyral containing softeners or similar polymers

Process for the production of sheeting,especially formed of polyvinyl butyral,having a small surface sticking

Process for forming plasticized polyvinyl butyral sheet

Plasticized polyvinyl butyral sheet optionally containing a gradient color band is formed by continuously extruding a sheet having a predetermined region across its width formed from melt issuing from a die at an increased mass flow rate in comparison with other portions of the melt forming the rest of the sheet and then forwardly distorting such sheet immediately after forming by preferentially stretching the side containing the predetermined region to form an arcuate shape of substantially uniform thickness. Arcuately shaped sections are then cut from the sheet to form discrete, shaped interlayer blanks having improved thickness uniformity and dimensional stability providing improved performance when used in laminated safety glass.

METHOD FOR THE PRODUCTION OF FILMS, IN PARTICULAR ON THE BASIS OF POLYVINYLBUTYRAL WITH LOW SURFACE TICKNESS

Process for the production of sheeting especially formed of polyvinyl butryal, having a small surface sticking

1. Process for the production of foils (4) with low surface adhesivity from a plasticised melt (A) having a plasticiser-containing polyvinylbutyral basis or a basis or polymers with similar properties, by extrusion with a broad slit tool (1), wherein the plasticised melt (A) is shaped with the wide slit tool (1) with input channel (10), distribution channel (11) and outlet gap (13) to form a foil, characterized in that the wide slit tool (1) is subjected in a region which - seen in the extrusion direction - is after the distribution channel (11), to a temperature which is so much lower than the remaining wide slit tool (1) that a temperature difference between the surface and the interior of the flow of melt (A) shaped to the foil is produced so that a roughening of the foil surface and accordingly a low surface adhesivity is produced as a result of the shearing of the solidifying melt flow taking place as a result, and that the foil emerging from the wide slit tool (1) is guided into a water bath (5) with a water temperature in the region of 2 to 40 degrees C.

PROCEDURE FOR PRODUCING A SHEET FORMED OF POLY (VINYL-BUTIRAL) OR POLYMERS WITH SIMILAR PROPERTIES

Method of obtaining foil with finely roughened surface

FOERFARANDE FOER FRAMSTAELLNING AV EN SKIVA, VILKEN AER SPECIELLT FORMAD AV POLYVINYLBUTYRAL OCH MED LAOG YTKLIBBIGHET.

Process for manufacturing foil like interlayer for safety glass

Forming apparatus of compressing seat for manufacturing forming mat

본 발명은 발포매트 제조용 압착시트의 성형장치에 관한 것으로서, 동일 수직선상에서 일정 간극을 이격하여 상하로 구비되는 상부롤러와 하부롤러로 이루어지는 압출롤러와; 각각의 상기 압출롤러의 일측에서 스팀 또는 냉각수가 선택적으로 공급되도록 구비되는 유체 공급관; 상기 유체 공급관에 일단이 연결되면서 상기 상부롤러와 하부롤러의 중앙을 각각 관통하여 길이 방향으로 구비되도록 하고, 상기 상부롤러와 하부롤러의 회전축과 베어링 결합에 의해 축지지되며, 상기 압출롤러들 내부에 위치하는 외주면에는 방사상으로 복수의 노즐이 형성되도록 하여 스팀 또는 냉각수가 방사상으로 분사되도록 하는 분사관; 상기 압출롤러들이 일정 온도를 유지하도록 상기 유체 공급관으로의 스팀 또는 냉각수의 공급을 단속 제어하도록 하는 컨트롤러로 이루어지게 함으로써 압출롤러의 온도 제어를 신속하고 정확하게 수행되도록 하여 공정 수행 효율 및 시트 제조 수율이 향상되도록 하는 특징이 있다. The present invention relates to an apparatus for molding a compression sheet for manufacturing a foam mat, comprising: an extrusion roller comprising an upper roller and a lower roller provided vertically spaced apart by a predetermined gap on the same vertical line; a fluid supply pipe provided to selectively supply steam or cooling water from one side of each of the extrusion rollers; While one end is connected to the fluid supply pipe, it passes through the center of the upper and lower rollers, respectively, and is provided in the longitudinal direction, and is axially supported by the rotation shaft and bearing coupling of the upper and lower rollers, and inside the extrusion rollers. a spray pipe for radially spraying steam or cooling water by radially forming a plurality of nozzles on the outer circumferential surface; By making the extrusion rollers consist of a controller that intermittently controls the supply of steam or cooling water to the fluid supply pipe to maintain a constant temperature, the temperature control of the extrusion roller is quickly and accurately performed, thereby improving process performance efficiency and sheet manufacturing yield There are features that make it possible.

Liner barrel

수축 끼워맞춤이나 냉각 끼워맞춤을 필요로 하지 않고, 슬리브를 배럴에 대하여 저비용으로 간단하고도 효율적으로 내장하는 것이 가능한 라이너식 배럴을 제공한다. 배럴 본체(2)와, 슬리브(8)와, 고정 기구(체결 구멍(11), 체결구(12))를 구비한다. 배럴 본체는, 원통 형상의 배럴 구멍(5)과, 배럴 구멍의 내주면(5s)을 분단하는 슬릿(6)을 갖는다. 배럴 구멍에는, 중공 원통 형상의 슬리브(8)가 취출 가능하게 내장된다. 슬릿은, 서로 간격을 두고 대향하는 2개의 절결면(6s)을 갖는다. 고정 기구는, 절결면의 상호 간의 간격을 좁혀 배럴 본체를 변형시킴으로써, 배럴 구멍의 내주면을 슬리브에 간극 없이 밀착시킨다. Provided is a liner-type barrel that does not require a shrink fit or a cool fit, and allows the sleeve to be simply and efficiently embedded at a low cost relative to the barrel. A barrel body 2, a sleeve 8, and a fixing mechanism (fastening holes 11 and fasteners 12) are provided. The barrel body has a cylindrical barrel hole 5 and a slit 6 that divides the inner peripheral surface 5s of the barrel hole. In the barrel hole, a hollow cylindrical sleeve 8 is built in to be taken out. The slit has two cutout surfaces 6s facing each other at intervals. The fixing mechanism closes the gap between the cut surfaces and deforms the barrel body, thereby bringing the inner circumferential surface of the barrel hole into close contact with the sleeve without gaps.

A kind of plastic pipe cooling device

本发明公开了一种塑料管材冷却装置，其结构包括基座、真空冷却定型水箱、回收盘、压力表、控制箱、水温监控仪、支撑架、配电箱、电机，基座的下端表面固定焊接有防滑底座，真空冷却定型水箱固定焊接于基座的上端表面，真空冷却定型水箱的右端表面嵌入有预冷室进料口，控制箱固定焊接于真空冷却定型水箱的前端表面右部，水温监控仪通过电连接于控制箱的前端表面右部，本发明在对管材进行定径、冷却的过程中，可以对真空冷却定型水箱内部的温度进行实时感应与监控操作，从而使用者可以及时对水箱内喷淋水的温度进行调整，从而保证了管材的冷却定型效果与品质，有效提高了设备的实用性能。

Multi-layered blown film forming apparatus and multi-layered blown film forming method

A multi-layered blown film forming apparatus contains an adapter provided to supply a multiple types of resins, a forming die provided on a downstream side in an axial direction of the adapter, and a temperature controller mechanism. Molten resins of multiple types are individually fed to the forming die through the adapter. The forming die contains a main body, a multi-layer structure of a plurality of single-layer thin film dies disposed in an inner portion of the main body in an axial direction to produce a plurality of resin thin films corresponding to the molten resins of the multiple types, and a first annular path formed between main body and the multi-layer structure. A multi-layered thin film in which the plurality of resin thin films are overlaid is passed through the first annular path and is outputted as a multi-layered thin annular film. The temperature controller mechanism controls individual temperatures of the plurality of single-layer thin film forming dies independently.

Patent JPS6234532B2

Film manufacturing method

Blown-film system for producing a blown film

The invention relates to a blown-film system (1) for producing a blown film (6), comprising at least one extruder (2) for producing at least one melt strand, at least one distributing tool (4) for converting the at least one melt strand into a peripheral melt layer, an outlet nozzle (5) for outputting the at least one melt layer, wherein said melt layer forms the blown film (6), and at least one device (12) for applying at least one fluid flow, in particularl one air flow, to the blown film (6) in order to cool the blown film (6). At least one pressure-providing device is provided, by means of which the blown film (6) can be led, by means of at least one overpressure and/or one vacuum, to the device (12) for applying a fluid flow to the blown film (6).

Device and method for cooling plastic profiles

本发明涉及一种用于生产塑料型材、优选塑料管材的挤出生产线，该挤出生产线包括至少一台挤出机(1)、一个装置(2)、一个校准器(3)以及多个附加的后处理装置(4，5)。根据本发明，该装置(2)具有至少一个通道(8)，并且在从挤出的方向(7)观看时一个抽吸装置(6)被安排在该装置(2)的上游，所述装置(2)具有带多个分离的熔体通道的若干个功能区域。本发明还涉及一种用于增加挤出生产线的冷却能力的方法。

INSTALLATION AND METHOD FOR MEASURING AND REGULATING THE MELTING INDEX OF A MELTED SYNTHETIC MATERIAL TO BE CONFORMED IN AN EXTRUSION INSTALLATION

A. INSTALLATION AVEC POMPE DE DOSAGE POUR UNE BUSE DE MESURE DANS UN CANAL A ECHANTILLON ET DES CAPTEURS DE PRESSION ET DE TEMPERATURE AVANT L'OUTIL D'EXTRUSION. B. INSTALLATION CARACTERISEE PAR, A LA SORTIE D'UN MALAXEUR A VIS SANS FIN 1, UN ETRANGLEMENT 29 A SECTION DE PASSAGE REGLABLE AU MOYEN D'UN MOTEUR 30 MONTE SUR LA SORTIE D'UN REGULATEUR A DEUX COORDONNEES PROGRAMMABLE 55 DONT LA COURBE CARACTERISTIQUE DE REGLAGE EST SOIT UNE COURBE TEMPERATUREPRESSION, SOIT UNE COURBE TEMPERATUREDEBIT, LE CAPTEUR DE TEMPERATURE 50 ETANT RACCORDE A UNE DES ENTREES DE VALEUR REELLE 56, ET LE CAPTEUR DE PRESSION ETANT RACCORDE A L'AUTRE ENTREE DE VALEUR REELLE 57 DU REGULATEUR. C. INSTALLATION APPLICABLE AU FORMAGE PAR EXTRUSION D'UNE MATIERE SYNTHETIQUE DONT L'ETAT DE FUSION EST MAINTENU CONSTANT PAR REGULATION. A. INSTALLATION WITH DOSING PUMP FOR A MEASURING NOZZLE IN A SAMPLE CHANNEL AND PRESSURE AND TEMPERATURE SENSORS BEFORE THE EXTRUSION TOOL. B. INSTALLATION CHARACTERIZED BY, AT THE OUTPUT OF A Worm-type mixer 1, a choke 29 with a passage section adjustable by means of a motor 30 mounted on the output of a regulator with two programmable 55 co-ordinates, including the curve ADJUSTMENT CHARACTERISTIC IS EITHER A TEMPERATUREPRESSION CURVE OR A TEMPERATURE-FLOW CURVE, THE TEMPERATURE SENSOR 50 BEING CONNECTED TO ONE OF THE ACTUAL VALUE INPUTS 56, AND THE PRESSURE SENSOR CONNECTING TO THE OTHER ACTUAL VALUE INPUT 57 OF THE REGULATOR. C. INSTALLATION APPLICABLE TO THE FORMING BY EXTRUSION OF A SYNTHETIC MATERIAL WHOSE MELTING STATE IS MAINTAINED CONSTANT BY REGULATION.

Arrangement for controlling the diameter of film bag

Изобретение относитс  к автоматическому управлению процессами формообразовани  экструдируемых полимерных издели. Цель изобретени  - повышение качества получаемого пленочного рукава за счет стабилизации его геометрических размеротз путем автоматического управлени  процессом раздува при экструдировании его посредством черв чного пресса. Устройство содержит черв чный пресс с электроприводом и сумматор. На его вход подключены омонтироваиные в зоне раздува рукава и в зоне его затвердевани  соответственно основной и дополнительный датчики диаметра рукава. Устройство содержит установленный в магистрали системы внешнего воздушного охлаждени  исполнптельш.пЧ механизм с заслонкой. Устройство снабжено подключенным на вход сумматора задатчиком разности диаметров рукава , дополнительными исполнительными механизмами. Последние выполнены в виде элемента перемещени  основного и дополнительного датчиков по высоте рукава и элемента управлени  электроприводом черв чного пресса. Устройство снабжено включенным между выходом сумматора и входом исполнительных меха:низмов переключателем с рабочими контактами и основным, дополнительным и промежуточным регул торами . Входы последних соединены через рабочие контакты переключател  с выходом сумматора. Выходы их соединены с исполнительным механиз- мом с заслонкой, элементом перемещени  основного и дополнительного датчиков по высоте рукава и элементом управлени  электроприводом черв чного пресса. В варианте выполнени  устройство снабжено блоком контрол  положени  исполнительного механизма с заслонкой, блоком контрол  высоты установки датчиков, а переключатель выполнен в виде блока управлени  с информационньми входами и выходньми контактами, причем на и формацион- ные входы блока контрол  положени  исполнительного механизма с заслонкой , выход блока контрол  высоты ус- датчиков и выход промежуточного регул тора, а на выходные - рабочие контакты переключател . 1 з.п. ф-лы, 5 ил. ш (Л ел GO СО О5 ел The invention relates to the automatic control of ...

Process for manufacturing an electric cable by controlled cooling

L’invention concerne un procédé de fabrication d’un câble comprenant au moins un élément électriquement conducteur allongé, une première couche semi-conductrice entourant l’élément électriquement conducteur allongé, une couche thermoplastique électriquement isolante entourant la première couche semi-conductrice, et une deuxième couche semi-conductrice entourant la couche thermoplastique électriquement isolante, ladite couche thermoplastique électriquement isolante étant obtenue à partir d’une composition électriquement isolante comprenant au moins un polymère thermoplastique (e.g. un polymère de propylène), ledit procédé mettant en œuvre le refroidissement contrôlé du câble après extrusion des couches précitées. Figure pour l’abrégé : Fig. 1 The invention relates to a method of manufacturing a cable comprising at least one elongated electrically conductive element, a first semi-conductive layer surrounding the elongated electrically conductive element, an electrically insulating thermoplastic layer surrounding the first semi-conductive layer, and a second semiconductor layer surrounding the electrically insulating thermoplastic layer, said electrically insulating thermoplastic layer being obtained from an electrically insulating composition comprising at least one thermoplastic polymer (e.g. a propylene polymer), said method implementing the controlled cooling of the cable after extrusion of the aforementioned layers. Figure for abstract: Fig. 1

Forming and cross linkage of rubber or plastic

Multi-layer blown film molding machine and method of molding multi-layer blown film

다층 블로운 필름 성형기는, 복수종의 수지를 공급하기위하여 설치된 어댑터와, 상기 어댑터의 축방향 하류측에 설치된 성형형과, 온도제어기구를 구비하고 있다. 상기 복수 종류의 용융 수지는 상기 어댑터를 통해서 상기 성형형에 개별적으로 공급된다. 상기 성형형은, 본체와, 상기 본체 내부에서 상기 축방향에 배치되고, 상기 복수 종류의 용융 수지 중에서 대응하는 상기 수지의 박막을 생성하는 복수의 단층 박막 성형형의 적층체와, 상기 본체와 상기 적층체 사이에 형성되는 제 1 고리형상 통로를 구비한다. 복수의 상기 박막이 적층된 다층 박막은, 상기 제 1 고리형상 통로를 통과하여 다층 박막 고리형상 필름으로서 출력되고, 상기 온도 제어 기구는, 상기 복수의 단층 박막 성형형의 각각의 온도를 독립적으로 제어한다. The multi-layer blown film forming machine includes an adapter provided for supplying a plurality of resins, a molding die provided on an axial downstream side of the adapter, and a temperature control mechanism. The plurality of kinds of molten resins are individually supplied to the molding through the adapter. The said shaping | molding die is arrange | positioned in the said axial direction inside the said main body, and the laminated body of the several single layer thin film shaping | molding die which produces | generates the said thin film of the said resin among the said several types of molten resin, And a first annular passage formed between the stacks. The multilayer thin film in which the plurality of thin films are stacked is output as a multilayer thin film annular film passing through the first annular passage, and the temperature control mechanism independently controls the respective temperatures of the plurality of single layer thin film forming molds. do.

Improvements in plastic extrusion

Blown film prodn. control - e.g. in revolving tube process, controls air ring supply responsive to pyrometer signal below frost line

Extruded and blown plastic film process is monitored and controlled according to film temp. at a point between the extrusion die and the frost line. A signal form a temp. sensor is compared with a datum. The error signal is used to control cooling of the film. Used e.g. for a revolving tube type process. The control compensates for cyclic variations which can arise e.g. variation of melt index and melt temp. conditions in cooling system, gradual clogging of filter. A useful increase in prodn. rate is obt. without adverse effect on quality, or better quality without increased rate.

DEVICE AND METHOD FOR PREPARING A PROFILE OF ELASTOMERIC THERMOPLASTIC GEL

Dispositif de préparation d'un profilé plat d'un gel thermoplastique élastomère comportant :- un outil d'extrusion avec au moins une alimentation et une sortie ;- une filière de section adaptée au profil du profilé plat ;- des moyens de refroidissement en sortie de la filière ; et- un support plan mobile pour recevoir le profilé ;caractérisé en ce que les moyens de refroidissement comprennent un bain de refroidissement liquide à la surface libre duquel est recueilli et refroidi le profilé plat, ladite surface libre étant disposée entre la sortie de la filière et le support plan mobile et à proximité immédiate de la sortie de la filière. Device for preparing a flat profile of an elastomeric thermoplastic gel comprising: an extrusion tool with at least one feed and an outlet, a die of section adapted to the profile of the flat profile, cooling means at the outlet of the die; and a movable planar support for receiving the profile, characterized in that the cooling means comprise a liquid cooling bath at the free surface from which the flat profile is collected and cooled, said free surface being disposed between the exit of the die and the mobile plane support and in the immediate vicinity of the exit of the die.

A kind of nonflammable fire extinguisher canvas hose of impact resistance and preparation method thereof

本发明公开了消防水管技术领域的一种耐冲击不易燃的消防水管及其制作方法，包括内管，所述内管的外壁设置有加强层，所述加强层的外壁设置有保护层，所述保护层的外壁设置有阻燃纤维层，主要采用EVOH材料，气密性强，能有效防止高压水的冲击，提高了结构的稳定性，采用玻璃纤维和金属丝编织而成的加强层提高了消防水管的韧性，进一步提高了消防水管的抗冲击性，保护层具有防火阻燃和保温作用，该消防水管的最外层设置了阻燃纤维，进一步起到了阻燃的作用，该消防水管的制作方法自动化程度高，生产效率高，产能大，次品率低，克服了穿管造成胶管局部拉伸壁厚不均匀的现象。

Method and device for regulating pressure in a single-screw degassing extruder or in a cascade extruder

The invention relates to a method for regulating the minimal value of the pressure in the first half of the metering zone in a direction of conveyance in a single-screw degassing extruder or in a cascade extruder during the conveying of a melt consisting of a thermoplastic. The single-screw degassing extruder or the cascade extruder each have a first screw section ( 13 ), a degassing zone ( 14 ), a metering zone ( 22 ), and a measuring control loop (M), which includes a pressure measuring sensor (P) in the first half of the metering zone, a regulator (R) and an actuator (S) for influencing the pressure in the metering zone. The pressure is measured by the pressure measuring sensor (P) and is set by the regulator (R) and the actuator (S) so that the minimal value at the location of measurement ranges from 0.1 to 10 bar.

Kneading apparatus

A kneading apparatus includes a barrel having a chamber, which is a tubular hollow, a biaxial screw set for extruding a material to be kneaded downstream by rotation of the biaxial screw set inside the chamber, and kneading blade sections, mounted in the screw set, for kneading the material by shearing the material in tip clearances and a wedge-shaped space between an inside wall of the chamber and the kneading blade sections. The tip clearance becomes narrower from the upstream side to the downstream side in the direction of extrusion of the material. The kneading apparatus, which performs a continuous kneading operation, makes it possible to set proper kneading conditions in accordance with changes in the state of a material being continuously kneaded, and achieves high kneading efficiency.

Method and device for regulating pressure in a single-screw degassing extruder or in a cascade extruder

本发明涉及一种用于在单螺杆脱气挤出机或级联挤出机中在输送热塑性塑料熔体的过程中调节排料区沿输送方向的前半部中的压力最小值的方法，其中单螺杆脱气挤出机或级联挤出机具有一第一螺杆级(13)、一脱气区(14)、一排料区(22)和一测量调节回路(M)，测量调节回路包括一在排料区的前半部中的测压传感器(P)、一调节器和一控制装置用以影响排料区中的压力，其中，压力借助于测压传感器(P)测定并经由调节器(R)和控制装置(S)调节成在测量位置处的最小值在0.1与10巴之间。

Apparatus and plant for manufacturing and cooling a foil

Method of automatic control of extrusion process of making tubular article of plastic

High-hardness PVC (polyvinyl chloride) building wood-plastic template and preparation method thereof

本发明涉及一种高硬度PVC建筑木塑模板及其制备方法，属于聚氯乙烯板材技术领域。所述的高硬度PVC建筑木塑模板，由下列重量份数的原料组成，且原料总重量份数为100份：聚氯乙烯树脂粉35～50；偶联剂2～5；稳定剂1～4；丙烯酸烷基酯类加工改性剂5～15；填充剂5～15；润滑剂2～4；发泡剂2～4；增韧剂3～8；木粉30～40；补强剂3～10。本发明的板材堆积密度≤700kg/m3，具有良好的阻燃性和抑烟性，同时硬度高，木质感强；与原木一样，具有可钉、可钻、可刨、可粘等性能，表面光滑细腻，且耐水、耐腐蚀、防火、防霉、不被虫蛀、无污染。

Apparatus and method for manufacturing super high fluidity urethane-based spherical fine powder

The present invention provides an apparatus and method for manufacturing super high fluidity urethane-based spherical fine powder for powder slush molding by melting and mixing a super high fluidity urethane-based thermoplastic resin at high temperature, passing the thermoplastic resin through micro-sized fine holes to be extruded into a fine diameter, cutting the extruded thermoplastic resin into spherical fine powder having a uniform particle size, and drying the cut spherical fine powder.

Method for cooling extruded workpieces made of plastic

Verfahren zum Abkühlen von extrudierten Werkstücken aus Kunststoff, insbesondere Rohren, Schläuchen oder Profilen, wobei das Werkstück nach dem Verlassen des Werkzeugs kalibriert und dabei auf eine Temperatur gekühlt wird, die ausreicht, um die Oberfläche des durchlaufenden Werkstückes erstarren zu lassen, dadurch gekennzeichnet, dass das Werkstück im Anschluss an eine Kalibriervorrichtung (3) durch mehrere Kühlbecken (6, 7, 8) mit Kühlflüssigkeit, die in Reihe hintereinander angeschlossen sind, bewegt wird, wobei die Kühlflüssigkeit jeweils mittels eines separaten Wärmetauschers (6', 7', 8') gekühlt wird, dessen Kühlkreis von einem Kühlmedium durchströmt wird, und dass mittels eines zentralen elektronischen Rechners (9) die Regelung der Kühltemperatur in den Kühlbecken (6, 7, 8) erfolgt, wobei die Materialkonstanten des Kunststoffmaterials des Werkstückes, dessen Wandstärke und gegebenenfalls die Verweilzeit des Werkstückes in den Kühlbecken (6, 7, 8) während des kontinuierlichen Durchlaufs des Werkstückes durch diese als Istgröße im Rechner (9) abgelegt oder gespeichert werden, so dass die Kühltemperatur des Kühlmediums in den Kühlbecken (6, 7, 8) in Abhängigkeit vom Wärmedurchgang in der Wandung des Kunststoff-Werkstückes geregelt wird und nur soweit abgesenkt wird, dass der Kühlprozess an den Wärmefluss im Werkstück angepasst ist. Method for cooling extruded workpieces made of plastic, in particular pipes, hoses or profiles, wherein the workpiece is calibrated after leaving the tool and is thereby cooled to a temperature sufficient to solidify the surface of the workpiece passing through, characterized in that the workpiece is moved following a calibration device (3) through several cooling tanks (6, 7, 8) with cooling liquid, which are connected in series one behind the other, the cooling liquid in each case by means of a separate heat exchanger (6 ', 7', 8 ' ) is cooled, the cooling circuit of which is flowed through by a cooling medium ...

Method and apparatus for producing polybutylene terephthalate film, and shape-memory polybutylene terephthalate laminate film

A method for producing a polybutylene terephthalate film by an air-cooled inflation method of inflating a tube of a molten polybutylene terephthalate resin extruded from an annular die by the injection of air, the resin-extruding pressure being 8.3 to 13.7 MPa, and the resin-extruding temperature being a temperature ranging from the melting point of the polybutylene terephthalate resin −15° C. to the melting point −5° C.

LONGITUDALLY ORIENTED HOSE FILM

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2004 114 261 (13) A B 29 C 47/20, 47/90, 47/92 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2004114261/12, 14.10.2002 (71) Çà âèòåëü(è): ÐÀÑÌÓÑÑÅÍ Îëå-Áåíòò (CH) (30) Ïðèîðèòåò: 12.10.2001 TW 90125310 15.10.2001 EP PCT/EP01/12430 21.06.2002 GB 0214427.7 (72) Àâòîð(û): ÐÀÑÌÓÑÑÅÍ Îëå-Áåíòò (CH) (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 12.05.2004 (74) Ïàòåíòíûé ïîâåðåííûé: Åãîðîâà Ãàëèíà Áîðèñîâíà (87) Ïóáëèêàöè PCT: WO 03/03324 (24.04.2003) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé R U Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá ôîðìèðîâàíè ðóêàâíîé îðèåíòèðîâàííîé ïëåíêè èç ïî ìåíüøåé ìåðå îäíîãî òåðìîïëàñòè÷åñêîãî ìàòåðèàëà ñ äèàïàçîíîì êðèñòàëëèçàöèè ïóòåì ýêñòðóäèðîâàíè ïîòîêà ïî ìåíüøåé ìåðå îäíîãî ðàñïëàâëåííîãî òåðìîïëàñòè÷åñêîãî ìàòåðèàëà ÷åðåç êðóãëóþ ýêñòðóçèîííóþ ãîëîâêó, êîãäà ïîòîê, ïîêèäàþùèé êðóãëîå âûõîäíîå îòâåðñòèå â ãîëîâêå, îõëàæäàþò è îðèåíòèðóþò ïî ìåíüøåé ìåðå â îäíîì ïðîäîëüíîì íàïðàâëåíèè, îñòàâà ñü ïî ìåíüøåé ìåðå ÷àñòè÷íî ðàñïëàâëåííûì, ïðè÷åì ïðîäîëüíà îðèåíòàöè ñîçäàåòñ ïîñðåäñòâîì ò íóùåãî óñèëè , ñîçäàâàåìîãî ìåæäó âûõîäíûì îòâåðñòèåì è äâèæóùèìñ âûò æíûì ñðåäñòâîì, à îñòàþùèéñ âñå åùå ÷àñòè÷íî ðàñïëàâëåííûì ïîòîê íà ñâîåì ïóòè ìåæäó âûõîäíûì îòâåðñòèåì è âûò æíûì ñðåäñòâîì ïðîõîäèò è íàõîäèòñ âî ôðèêöèîííîì êîíòàêòå ñ êîëüöåâûì óñòðîéñòâîì, îòëè÷àþùèéñ òåì, ÷òî ôðèêöèîííîå óñòðîéñòâî, êîòîðîå ðàçìåùàþò èëè âíóòðè ïóçûð , îãðàíè÷åííîãî ðóêàâíûì ïîòîêîì, èëè ñíàðóæè ïóçûð , îõëàæäàåìîãî èçíóòðè ïîñðåäñòâîì òåêó÷åé îõëàæäàþùåé ñðåäû òàêèì îáðàçîì, ÷òîáû ââåñòè åãî ïîâåðõíîñòü â êîíòàêò ñ ïîòîêîì, èìåþùèì ðåãóëèðóåìóþ òåìïåðàòóðó, ïðè ýòîì íàñòðîéêà óñèëè òðåíè ïðè ôðèêöèîííîì êîíòàêòå ìîæåò âàðüèðîâàòüñ ïîñðåäñòâîì äðóãîãî êîíòðîë , ÷åì ðåãóëèðîâàíèå òåìïåðàòóðû ïîòîêà èëè íàò æåíèå ïîòîêà âî âðåì åãî êîíòàêòà ñ óñòðîéñòâîì, ...

Melt conductor for an extrusion die of an extrusion device, extrusion die, extrusion device and method for operating such an extrusion device

本发明涉及一种用于挤出设备(3)的挤出模具(2)的熔体导体(1)，特别是熔体分配器或熔体混合器，包括两个或更多个熔体导体块(4a，4b)和多通道系统(5)，所述多通道系统(5)布置在所述熔体导体块(4a，4b)中的至少一个内部，具有三维延伸并且具有至少一个输入(6)和至少一个输出(7)对于聚合物熔体，在一个输入(6)和一个输出(7)之间，流体连接到串联布置的输入(6)的若干分支(8)，并且在划分的熔体通道(11a，11b)的若干级(12a，12b)上形成若干级(9a)的子分支(10)；第a级(12a)的m个熔体通道(11a)具有第x个局部截面，第b级(12b)的n个熔体通道(11b)具有第y个局部截面，其中如果b>a,则n>m，第b级(12b)的熔体通道(11b)的第y个局部截面小于第a级(12a)的熔体通道(11a)的第x个局部截面。本发明还涉及挤出模具、挤出设备和操作挤出设备的方法。

Patent GB1302511A

1302511 Extruding rubber compositions UNIROYAL Inc 2 Jan 1970 [10 Jan 1969] 161/70 Heading B5A [Also in Division B1] A uniform volumetric discharge rate of natural or synthetic rubber material is obtained from an extrusion screw, by relieving an excess volumetric rate capacity of heat plasticized material from a region intermediate screw regions respectively of higher and lower volumetric rate capacity, by returning the excess material to the beginning of the higher capacity region through a passage separate therefrom. An extruder screw of lower capacity may be fed with the heat plasticized material from a separate screw feed extruder of higher capacity which may act to blend different materials, supplied thereto, e.g. by a force ram feed, and may be provided with water or steam temperature control means, the excess capacity being relieved from a conduit connecting the extruders through an orifice, which is replaceably located or is of the variable iris type, and conveyed by feedback means, e.g. an extrusion screw, to the supply of new material upstream of the inlet of the higher capacity extruder, with each extrusion screw having a separate variable speed drive. The excess capacity may be 10% in excess of the discharge rate, but may be as great as two or three times, e.g. for blending purposes. In the preferred embodiment, the excess capacity is relieved from a single extrusion screw 12 at a barrel orifice 27 and returned, by a separately driven screw 36, at a barrel orifice 17 to sections D, A of the screw 12, which is supplied with unplasticized material from a hopper 15. In section A, the extruder barrel 10 is provided with six start grooves 21, of gradually increasing depth towards, and slightly into, a region E 1 of a section E in which the orifice 27 is located, where the grooves 21 abruptly decrease to zero depth, the screw grooves 20 decreasing in depth over the same extent to zero at 23 in region E, where plasticized material is then transferred by the ...

Process of continuously blending, molding and curing heat curable polymeric compounds, and apparatus therefor

A kind of pipe, wire rod pressed production line

本发明一种管、线材生产线属于成型材料的生 产，它是一种软芯生产胶管、塑料管的自动化生产线， 在整条生产线上，设计了四个闭环控制系统，包括胶 管外径测量与控制，挤出机机头压力测量与控制，卷 曲与自动排摆，导出与张力控制，以及冷却水水温与 控制，它具有管材自动测量，自动调节以保证所生产 的产品在合格范围之内。

Film production device and production method

Method and device for thermo-adjustment, in particular for plasticizers for the extrusion of thermoplastic resins and the like

Cooling ring for a blown film line, blown film line and method for operating such a blown film line

Kühlring für eine Blasfolienanlage, zur Anordnung zwischen einem Blaskopf und einem Abzug, mit einer Folienschlauchführung, wobei die Folienschlauchführung einen zentralen Durchtritt für einen Folienschlauch aufweist, sowie mit einer Luftführung, welche dazu eingerichtet ist, in die Luftführung eingeblasene oder eingesaugte Luft auf den Folienschlauch auszublasen, wobei die Luftführung eine kreisringförmige Luftdüse zum Ausblasen der Luft aufweist, wobei die Luftführung eine Vielzahl Temperaturregelsegmente aufweist, wobei ein Temperatursegment ein Kühlmittel und ein Heizmittel für die auszublasende Luft aufweist. Cooling ring for a blown film plant, for arrangement between a blowing head and a trigger, with a film tube guide, wherein the film tube guide has a central passage for a film tube, and with an air guide which is adapted to blow blown into the air duct or sucked air to the film tube wherein the air guide comprises an annular air nozzle for blowing out the air, the air guide having a plurality of temperature control segments, wherein a temperature segment comprises a coolant and a heating means for the air to be bled.

Shape-memory laminated polybutylene terephthalate film, production process and use thereof, and process for production of polybutylene terephthalate film

A laminated polybutylene terephthalate film having an excellent shape memory and high dimensional stability under heat, which is obtained by (1) bonding a polybutylene terephthalate film to another film or a laminated film and forming the obtained laminate at a temperature (T1) not higher than the glass transition temperature of the polybutylene terephthalate while keeping it in the first shape, (2) forming the obtained shaped laminate into the second shape at a temperature (T2) exceeding the above glass transition temperature, and (3) cooling the obtained shaped laminate to a temperature (T3) not higher than the above glass transition temperature.

Shape-memory laminated polybutylene terephthalate film, production process and use thereof, and process for production of polybutylene terephthalate film

A laminated polybutylene terephthalate film having an excellent shape memory and high dimensional stability under heat, which is obtained by (1) bonding a polybutylene terephthalate film to another film or a laminated film and forming the obtained laminate at a temperature (T1) not higher than the glas s transition temperature of the polybutylene terephthalate while keeping it in the first shape, (2) forming the obtained shaped laminate into the second shape at a temperature (T2) exceeding the above glass transition temperature , and (3) cooling the obtained shaped laminate to a temperature (T3) not highe r than the above glass transition temperature.

Melt conductor for an extrusion die of an extrusion device, extrusion die, extrusion device and method for operating such an extrusion device

本发明涉及一种熔体导体(1)，特别是用于挤压设备(3)的挤压模具(2)的熔体分配器或熔体混合器，熔体导体(1)包括具有多通道系统(5)的熔体导体块(4)，多通道系统(5)布置在熔体导体块(4)内部三维延伸，并且具有用于聚合物熔体的至少一个输入(6)和至少一个输出(7)，在输入(6)和流体地连接到输入(6)的输出(7)之间，多个串联布置的分支(8)和在分开的熔体通道(11a，11b)的多个级(12a，12b)上形成的多个子分支(10)的多个级别(9a)；具有m个具有第x个局部横截面的a级(12a)的熔体通道(11a)和n个具有第y个局部横截面的b级(12b)的熔体通道(11b)，其中如果b>a，则n>m，b级(12b)的熔体通道(11b)的第y个局部横截面小于a级(12a)的熔体通道(11a)的第x个局部横截面。本发明还涉及挤压模具，挤压设备和操作挤压设备的方法。

Light foaming sheet material and machining process

本发明属于板材加工领域，具体涉及一种轻质发泡板材及加工工艺。该板材由如下重量份数的原料制成：聚氯乙烯树脂粉30~70份、木粉5~15份、ACR加工改性剂2~30份、滑石粉5~18份、氧化聚乙烯0.2~25份、颜料0.2~5份和发泡剂0.5~5份，其中，发泡剂由偶氮二甲酰胺和碳酸氢钠组成，偶氮二甲酰胺与碳酸氢钠质量比为1：（2~5），聚氯乙烯树脂粉聚合度为750~1000，木粉粒度为40~60目。加工工艺为：先将原料加入高速混合机，再用高温锥形双螺杆挤压加工，然后采用三辊降温冷却定型。本发明所述的发泡板材具有轻质的特点，且性能好，成本低廉，制备方法简单易行。

PRODUCTION PROCESS OF THERMOPLASTIC MATERIALS BASED ON STARCH

A blown-film extrusion apparatus and a method for manufacturing a blown film

A blown-film extrusion apparatus for manufacturing a tubular polymer film (1) comprises an extruder (2); a solidification ring for solidifying a tubular element produced by the extruder and for forming the film by delivering cooling air on the tubular element at a given cooling height, and a film conveyor for conveying the film upwards. The apparatus also comprises a delivery device (80) for projecting correction air on the tubular element, in order to locally correct the thickness of the film, comprising a distribution chamber (78); a plurality of air delivery members (81') with delivery channels (37) whose delivery mouths (33',33") are arranged about said axis (25) of the apparatus for projecting correction air partial streams (19') on respective angular correction positions, between the die and the cooling height; flow control elements (68) between the distribution chamber (78), and the inlet (32) of respective air delivery members, configured for adjusting the flowrate of the respective correction air stream (19') according to an adjustment signal. According to an aspect of the invention, a plurality of separate radial ducts (45) is provided defining respective delivery channels (37) and spaced apart, at an own end portion, by separation spaces, so that the correction air partial streams, after hitting the tubular element in the respective angular correction positions, can flow away from the tubular element through said separation spaces. According to another aspect of the invention, the distribution chamber (78) is defined by an upper ring (161) and by a lower ring (159) connected to each other by means of tight fixed joints with a first substantially cylindrical wall (151) and with a second substantially cylindrical wall arranged around the first cylindrical wall, wherein possible separate radial ducts of the air delivery members protrude from the first cylindrical wall (151).