Abstract: A hot isostatic pressing apparatus (HIP apparatus) comprises a vertically cylindrical high-pressure vessel comprising a high-pressure cylinder 1 and upper and lower lids 2 and 3; a bottomed cylindrical casing 6 capable of housing workpieces 9 and a resistance-wire heater 11, a heat insulating structure 16 equipped with a gas flow regulating valve 15 and formed in a bottomed cylindrical shape on the outside of the casing 6 so as to cover the casing 6, and a heat sink 17 having a water cooling mechanism provided in the space defined by the heat insulating structure 16 and the inner surface of the high-pressure cylinder 1, which are provided within the high-pressure vessel; and a pressure medium gas stirring fan 12 for promoting the temperature uniformity of the space of the treatment chamber 7 for housing the workpieces 9, the stirring fan being arranged on the lower lid 3 side within the casing 6, whereby the cooling to a temperature range of 100° C.

Abstract: In an injection molding apparatus 62 on which a disk molding die is mounted, wherein the disk molding die is comprised of a stationary die 10 and a movable die 20, a plurality of principal parts of which are separately temperature controlled by media, a control device 50 of the injection molding apparatus 62 is provided with a temperature control mechanism for controlling temperatures of the media which are pumped by a plurality of temperature control devices 51a and 51b in order to control the temperatures of said principal parts.

Abstract: A molding station has a housing support and a housing. The housing has a generally horizontal axis, a plurality of mold cavity enclosures and a plurality of sides. The housing is rotatably mounted to the housing support about the generally horizontal axis. The mold cavity enclosures are circumferentially positioned about the axis in at least some of the sides. Each mold cavity enclosure defines at least one mold cavity.

Abstract: In a temperature controlled segmented die for forming pressed containers such as plates, trays, bowls or the like including a die segment with a forming surface and an outer movable annular die member there is provided a side mounted temperature probe which extends laterally around the movable annular die member and toward the forming surface of the die segment. The apparatus is particularly useful for forming pressed paperboard containers such as paper plates.

Abstract: An apparatus for molding balloon catheters is disclosed. The balloon may be molded by providing a polymeric tube within a mold having an interior cavity in the shape of the desired balloon. Microwave energy, which may be generated by a gyrotron, may then be directed toward the mold, to heat the polymeric material without heating the mold. Once heated, pressurized fluid may be injected into the tube to blow the polymeric material against the interior cavity whereupon the material can cool to form the balloon or can be further heatset by additional microwave energy and be cooled to form the balloon.

Abstract: The invention concerns a micro-composite polymer/polymer material comprising an amorphous polymer (I) forming a dispersed phase localised inside a thermoplastic or elastomeric polymer (II) forming a matrix, the glass transition temperature of polymer (I) forming a dispersed phase being higher by at least 20° C. than the melting or softening point of matrix-forming polymer (II), and the amorphous polymer content (I) forming the dispersed phase being not less than 40 wt. %.

Abstract: A method for inspecting the material distribution of a sequence of stretch blow molded containers or other articles in a continuous production process, by providing injection molded parisons, each parison having at least one indicator, typically two or more indicators, for detecting material distribution at a predetermined position along the axial extent of the parison. Each of the parisons is subjected to a heating stage in the continuous production process, generally by exposure to infrared heating. Each heated parison is then subjected to a blow molding process, which can be a stretch blow molding process, so that each material distribution indicator is transformed to a corresponding position along the axial extent of the blow molded article. A detector is positioned to detect the location of each indicator on each blow molded article from a given mold in the production process.

Abstract: An apparatus and method for extruding, cooling and cutting an extrusion using temperature feedback can include an extruder for producing an extrudate which can be fed through appropriate sizing, support and cooling devices, which can include one or more of a vacuum chamber, cooling chamber, and calibrators having internal cooling passages. The apparatus can also include a cutting blade, a programmable temperature controller for controlling the cooling of the extrudate based upon feedback on the temperature of the extrudate sensed near the cutting blade and/or prior to a device which feeds the extrusion through the system. The method can include sensing the temperature of the extrudate, at a point near the cutting blade and/or prior to the feed device, subsequent to extrusion being passed through the sizing, support and/or cooling devices.

Abstract: A method is disclosed for molding a part. The method includes steps of heating molding materials in a plasticator at a predetermined temperature; mixing the molding materials to create a molten suspension wherein a majority of the reinforcing fibers remain generally undamaged; extruding the molten suspension to form a billet and then placing the billet in a compression mold and compressing the billet with the compression mold to mold a part. In one embodiment, the reinforcing fibers are distributed throughout the part.

Abstract: The present invention relates to a method for producing a continuously molded body (11) from an extrusion solution preferably containing water, cellulose and a tertiary amine. The extrusion solution is extruded through an extrusion duct orifice (10) to obtain a continuously molded body. The continuously molded body is passed through an air gap (12) in which it is stretched. To increase the loop strength and to reduce the tendency to fibrillate, the mean acceleration and/or the mean heat flow density are controlled according to the invention in accordance with predetermined formulae.

Abstract: A decurl apparatus includes a heating device to heat an image recording carrier web at a constant temperature, which exceeds the glass transition temperature of a support for a constant time period; and a cooling device for subsequent cooling of the image recording carrier web to a temperature equal to or lower than the glass transition temperature, while the image recording carrier web maintains a predetermined shape. The heating device includes an induction-heated heating roller and holding rollers arranged at arbitrary angular positions with respect to the outer circumference of the heating roller. As a result, the image recording carrier web is reliably decurled by a simple construction without being influenced by a transfer velocity or the like.

Abstract: The present invention includes processes for making fibers, which processes include an extrusion step wherein molten polymers are extruded through an extrusion die, thereby forming at least one extruded filament; and an orientation step, wherein the filament is drawn to align the molecules of the filament, and wherein multivariate data analysis techniques are used to analyze data regarding various process variables and, optionally, process variables are adjusted in response to the multivariate data analysis.

Abstract: The present invention relates to a spinning head (8) for spinning a spinning dope, which is provided with a tubular, thin-walled spinning capillary (7) having a discharge opening (94). The spinning dope used is e.g. a mixture of cellulose, tertiary amine oxide and water. In order to reduce the fibrillation tendency of the fibres spun by means of the spinning head and in order to increase the non-looping property, the present invention is so conceived that the spinning capillary (7) is heated directly close to the discharge cross-section (94). By means of this simple measure, it is possible to reduce the fibrillation tendency and to increase the non-looping property.

Abstract: An injection molding apparatus comprises a manifold having a manifold channel for receiving a melt stream of molten material under pressure and delivering the melt stream to a nozzle channel of a nozzle. A mold cavity receives the melt stream from the nozzle and the nozzle channel communicates with the mold cavity through a mold gate. A thermocouple is coupled to the mold core of the mold cavity in order to measure the temperature of the molten material in the mold cavity.

Abstract: A combination fastener and foam sheet having enhanced fastener retention and methods of forming a foam sheet are provided so that the fastener is not easily removed from the foam sheet when an outward force is applied thereto. The combination preferably includes a foam sheet including a fibrous material and urethane foam material abuttingly contacting and substantially surrounding the fibrous material so that the fibrous material is substantially contained within and retained by the urethane foam material. The combination also, preferably includes a fastener having threaded portions positioned within the foam sheet so that the threaded portions are retained in the foam sheet and are not easily removed when an outward force is applied thereto. The foam sheet preferably also has a strengthening material such as glass also substantially surrounded by the urethane foam.

Abstract: An apparatus for producing an extruded film tube and supplying said tube to a collapsing and roller assembly includes a die for extruding a molten material in the form of a tube which is in a molten state below a frost line and in a solid state above the frost line. A blower system supplies and exhausts cooling air to and from an interior portion of the tube, and is regulated by a valve. At least two sensors are provided, one below the frost line for sensing the position of said tube, and one located proximate the tube in a position above said frost line. The upper sensor is used for sensing the position of the tube prior to collapsing and flattening it. A controller receives feedback signals from both sensors and controls operation of the valve.

Abstract: A precise mold controlling method for injection molding of plastic, wherein, a detecting device is connected to the interior of a die set to practice controlling interiorly of the die set, a temperature sensor is connected with a reduced feeding opening of a high speed injection shaping machine, the temperature “t” during injection of plastic by the high speed injection shaping machine can be detected by a temperature sensor, in cooperation with the fullness of filling measured in the die set by the detecting device and the pressure “p” required for feeding decided by the digital control device controlling an oil pressure feeding device of the high speed injection shaping machine to forward and return material in time, the density “v” of plastic in the die set can keep a predetermined value, thus a housing with a precise size can be produced.

Abstract: The present invention relates to a method and installation for integrally applying a relief decoration to the surface of solid elongate members. The installation comprises a pre-heater (43) with pre-heater control means (69), a press (51), and a camber measurement system (67). The pre-heater (43) is adapted for differently heating the surface of two opposing faces of an elongate member previous to feeding it to the press (51) for applying the relief decoration. The camber measurement system (67) measures possible camber of the elongate member coming out of the press (51) and generates camber measurement signals which are fed back to the pre-heater control means (69) for controlling the heating of the pre-heater (43). The aim of the installation of the present invention is to eliminate the camber of following elongate members to which a relief decoration is to be applied.

Abstract: A method of predicting optimal injection molding cycle time includes the steps of performing a thermal analysis through a thickness of a part made using an injection mold, calculating shrinkage as a function of cooling time, calculating friction forces between the part and mold, calculating ejection forces based on the coefficient of friction and the calculated shrinkage calculating the induced stress in selected high stress areas on the part, and comparing the induced stress with material yield stress to determine an optimal cycle time window within which the part can be ejected without being damaged.

Abstract: The invention relates to an extrusion plant for manufacturing foam products such as foamed sheets, foamed boards and foamed profiles, and consists of one melting extruder minimum to melt and homogenise the plastic material and a minimum of two parallel cooling units to cool down the plastic melt prior to extrusion through a die. According to the invention it is planned that the minimum of two parallel cooling units are used that may or may not be identical or that can be controlled by control means so that the expelled plastic melt from these units may or may not have the same material properties.

Abstract: An internal bubble cooling air control system in a blown film apparatus has sensors arranged to increase response time and reduce interference, and includes a high speed valve for fast actuation of air flow from a controller in response to signals received from the sensors.

Abstract: A die assembly for forming wax patterns is provided, including at least two cooperating mold portions together defining a main cavity, a runner in communication with the main cavity, a temperature sensor disposed proximate the runner, and a counter coupled to a mold portion and connected to the temperature sensor. When wax is injected through the runner into the main cavity, the temperature sensor measures an increase in temperature and the counter registers an injection cycle. An injection molding method also is provided with injection cycle counting.

Abstract: Apparatus and method for producing extruded polymer products such as hollow extrusions and conductor coatings having wall thicknesses of 0.002 inches or less. The apparatus may comprise more than one of the following: an external heat source; temperature measurement and heater control; video monitoring equipment to allow magnified observation of the extrudate, thereby providing opportunity to observe any deficiency in the extrudate; and a die holder and die allowing for more expedient die adjustments.

Abstract: Heat-up characteristics are obtained individually for a plurality of heat zones of an injection molding machine. A heat-up time is obtained from the heat-up characteristic of each heat zone and the difference between a preset temperature and an actual temperature. A heat zone that requires the longest heat-up time is specified. Heat-up of each heat zone is controlled in accordance with the longest heat-up time.

Abstract: A high volume lens curing system is described. The high volume lens curing system is configured to cure multiple eyeglass lenses in a continuous manner.

Abstract: A high volume lens curing system is described. The high volume lens curing system is configured to cure multiple eyeglass lenses in a continuous manner.

Abstract: An injection mold apparatus has multiple injection zones, each zone having at least one heater and at least one temperature sensor generating a temperature indicating signal. A power source provides power to the heaters. A controller controls the temperature of at least some of the zones. For efficiency, the controller has two separate processors, a data-receiving processor for receiving temperature indicating signal from each sensor as well as power signals, and a control processor for receiving data from the data-receiving processor and for controlling the amount of power provided to the heaters. Preferably, the control is in a housing, with the housing mounted directly on the mold. Modified PID calculations are utilized. Power calculations for the amount of power to the heaters utilizes a modulo based algorithm.

Abstract: The invention is a method for operating an extruder temperature controller. The method can include sensing an actual screw speed for an extruder screw in an extruder barrel. The extruder barrel has at least one heat exchange means. The method can then involve indexing and storing a plurality of screw speeds. Each of the stored screw speeds corresponds to a temperature reset value. Comparing the actual screw speed with each of the stored screw speeds can then be performed. Selecting one of the stored screw speeds can then occur. The selected screw speed is a member of the plurality of stored screw speeds having a value most arithmetically equivalent to the actual screw speed. The step of selecting retrieves the temperature reset value corresponding to the selected, stored screw speed. Generating a control output driver signal to the heat exchange means can occur. The control output driver signal is responsive to the retrieved temperature reset value.

Abstract: A method and apparatus for thermostatically controlling mold temperatures. The molding apparatus includes at least two die sections and a thermostatic control valve. At least one of the die sections has a cooling channel extending through portions of the die section. The cooling channel has an inlet end connected to a source of cooling fluid and an outlet end connected to an exhaust line. The thermostatic control valve is interposed in the exhaust line and has closed and open conditions. In the closed condition, the flow rate of fluid through the cooling channel is restricted causing the temperature of the die section to increase. In the open condition, the flow rate of fluid through the cooling channel is increased causing the temperature of the die section to decrease. The thermostatic control valve automatically moves between the open and closed conditions responding to the temperature of fluid through the cooling channel.

Abstract: A resin multilayer molding method in which a skin material having a resin decorating layer on a surface and a core-material resin are integrally molded in a mold, comprising the steps of: presetting a relationship of a glass transition point (Tgs) of the resin decorating layer of the skin material and a supply temperature (Tc) of a molten resin forming a core material to satisfy Tgs<Tc, and performing molding on a condition that a maximum temperature (Tsm) of the resin decorating layer of the skin material during clamping satisfies Tsm>Tgs.

Abstract: A method for operating actuators, such as pneumatic valves, in an injection molding machine especially for CD or DVD discs, or other molded articles. The timing of auxiliary processes (such as blowing air into the mold cavity or applying suction to the molded article in the cavity) is set as a function of the instant of completion of a process in the main sequence of operations (especially, cooling the molded article prior to ejection from the mold). In a set and display section the user sets a preferred time tn for each actuator to operate after, or before, a set completion time T of the main-sequence process (e.g., cooling). The time tn can be negative or positive, so that the various actuators turn on before or after the set completion time. A CPU calculates a starting time T±tn, and keeps the actuators on during a following interval tp. The starting time T±tn may be input to a memory, and output to the respective actuator.

Abstract: The present invention relates to an apparatus for producing solid active ingredient-containing forms from an active ingredient-containing formulation which comprises at least one polymeric binder. The apparatus according to the invention has at least one extruder 1 for continuous plastication of the formulation and at least two injection units 2 which are provided separate from one another, each of which is connected to the extruder 1, and through which the formulation can be injected into at least one mold 3.

Abstract: A method of manufacturing a resin impregnated article comprises the steps of providing a mold onto which a reinforcing material is placed, sealing the reinforcing material with an impervious sheet and regulating the temperature of the reinforcing material and resin by placing a fluid in contact with the impervious sheet and regulating the temperature of the fluid.

Abstract: A method for embossing a cylindrical object such as a paint roller cover, especially using an apparatus that includes a shuttle and a rotatable shaft on the shuttle. The rotatable shaft includes two ends, with one end accepting a paint roller cover and with the other end being toothed for engagement with a gear rack. As the rotatable shaft is drawn in one direction by the shuttle, the toothed end engages the gear rack and rotates the rotatable shaft, thereby also rotating the paint roller cover. As the paint roller cover rotates, it is drawn by the shuttle over a die transfer plate having a design formed therein, and such design is transferred to the paint roller cover. The die transfer plate is heated to the desired temperature, and the speed of the shuttle is controllable so that time and temperature is controlled. Another controlled parameter is pressure.

Abstract: A non-intrusive method of determining temperature and for controlling the Electroconsolidation process is described which is based on the change with temperature of the velocity of sound as it passes through a material. Ultrasonic transducers located outside of the die, but positioned to transmit and receive an ultrasonic signal, are used to determine an average temperature in the line of sight of the transmitted signal. A single-loop feedback system may be used to control the temperature based upon a comparison of the measured temperature to the desired temperature.

Abstract: Objects of the invention is to provide a practical, novel foam molding apparatus wherein mold surfaces are devoid of air orifices, and to provide an in-mold foam molding apparatus and method for the reduction of cooling time for molded articles. A mold cavity 4 is filled with prefoamed beads comprising a polyolefin synthetic resin; these are heated and fused with steam; and the molded article is cooled, during which cooling process the pressure of the foamed resin against the molds 2, 3 as it is cooled is successively measured by means of a bearing pressure sensor, and when the pressure of the foamed resin against the molds has reached a pressure predetermined for the particular molded article, cooling of the molded article is terminated, the molded article is released from the mold, and the molded article is then set in a fixture to stabilize the shape of the molded article.

Abstract: Dendrimer additives incorporated in thermoplastic resins (such as polycarbonate resins) are effective to alter the surface characteristics of the thermoplastic resin. Such compositions can be injection molded to produce articles in which the dendrimer additive is concentrated at the surface of the article to alter the properties of the resin. By selection of the type of dendrimer additive, the resulting characteristics of the molded article may be controlled.

Abstract: An extruder cylinder is heated by resistance heaters surrounding cooling coils around respective segments of the extruder cylinder which is subdivided into heating and heating or cooling zones therealong. The rate of flow of the heat-carrier oil in the coil or the rate of flow of a cooling medium in heat exchange therewith can be regulated to control the cooling effect of the heat-carrier oil which can continue to flow through the coil even during purely heating phases for temperature equalization over the zone.

Abstract: An apparatus for thermoforming an article of fiber packaging from a fibrous slurry is provided. The apparatus includes first and second co-operable dies being adapted to receive the fibrous slurry therebetween. The apparatus includes at least one thermal mass mounted to at least one of the first and second dies. The apparatus includes at least one radio-frequency induction coil mounted to at least one of the first and second dies. The apparatus includes a power source in electrical communication with the at least one radio-frequency induction coil to supply radio-frequency energy thereto and wherein the coil is adapted to induce an electromagnetic field within one or more thermal masses to heat a respective die and thermoform the fibrous slurry into the article of fiber packaging. At least one of the first and second dies can include at least one sensor for measuring the temperature of the respective die.

Abstract: A high volume lens curing system is described. The high volume lens curing system is configured to cure multiple eyeglass lenses in a continuous manner.

Abstract: Improved mold manifold and hot runner nozzle using thin film elements include at least one active or passive thin film element disposed along a melt channel between the manifold inlet and the hot runner nozzle. Preferably, the thin film element may comprise a thin film heater in direct contact with the molten resin and position to aid in the heat and flow management of the resin within the melt channel. Thin film temperature sensors, pressure sensors, and leak detectors may also be provided in the vicinity of the melt channel to enhance process control in the injection molding machine.

Abstract: An apparatus and method for extruding, cooling and cutting can include an extruder for producing an extrudate which can be fed through appropriate sizing, support and cooling devices, which can include a vacuum chamber, cooling chamber, and calibrators, which can have internal cooling passageways. The apparatus can also include a cutting blade, a programmable temperature controller for controlling the temperature of the extrudate prior to being cut by the cutting blade, and a temperature sensor, which can be positioned near the cutting blade and provide feedback to the temperature controller. The method can include sensing the temperature of the extrudate, at a point near the cutting blade, after it is fed through the sizing, support and cooling devices and before being cut. Such feedback can be used to control the temperature of the extrudate such that the extrudate is maintained within a desired range of temperature as it is cut.

Abstract: A high volume lens curing system is described. The high volume lens curing system is configured to cure multiple eyeglass lenses in a continuous manner.

Abstract: In a method of producing a ceramic molding 8 having a desired shape by extruding a ceramic material 80 pressure-fed into a resistance pipe 3 from a mold 4 by using a production apparatus including a screw type extruder 10 and the mold 4 connected to the distal end of the extruder 10 through the resistance pipe 3, the ceramic material 80 pressure-fed from the extruder 10 into the resistance pipe 3 is heated or cooled from round the periphery of the resistance pipe 3 so as to control the shape of the ceramic molding 8 extruded from the mold 4.

Abstract: A high volume lens curing system is described. The high volume lens curing system is configured to cure multiple eyeglass lenses in a continuous manner.

Abstract: Method for vulcanizing a tire by predetermining a degree of vulcanization, comprising the steps of determining specified structural and dimensional parameters of the tire and of a vulcanization mould, determining the change over a time (t) of specified thermodynamic parameters of the tire, of the mould, of heat-supply fluids and of a cooling fluid, determining a parameter consisting of an equivalent vulcanization time t0, and determining an equivalent degree of vulcanization X(t0) at specified points within the tire by means of an equivalent isothermal rheometric curve at a reference temperature T0, comprising three consecutive sections having the following equations: X ⁡ ( t o ) = { k ⁢   ⁢ t o

Abstract: The present invention relates to an improved method and apparatus for injection molding and cooling molded articles such as preforms so as to avoid crystallinity. The apparatus and method make use of a take-off plate for removing articles from a mold, which plate may include heat transfer devices for cooling exterior surfaces of the molded articles or preforms, and a system for cooling in a controlled manner interior surfaces of the molded articles or preforms.

Abstract: Apparatus and method for producing extruded polymer products such as hollow extrusions and conductor coatings having wall thicknesses of 0.002 inches or less. The apparatus may comprise more than one of the following: an external heat source; temperature measurement and heater control; video monitoring equipment to allow magnified observation of the extrudate, thereby providing opportunity to observe any deficiency in the extrudate; and a die holder and die allowing for more expedient die adjustments.

Abstract: A method of and an apparatus for measuring and evaluating characteristics of material resin using an injection molding machine. Injections of resin are performed with different resin temperatures TCi and different injection velocities Vj to detect injection pressures Pr at set screw positions. Data of combinations (Pr, V, TC) of an N number of injection pressures, injection velocities and resin temperatures are obtained. An interdependency relation function Pvr(t, v(x),x) expressing correlation among the injection pressure, the injection velocity and the resin temperature is obtained as Pvr(t, v(x), x)=A(x)e−&agr;(x)Tv(x)&bgr;(x) according to a least square method using the obtained data, where &bgr;(x) represents a degree of dependency on injection velocity influencing the injection pressure and “log A(x)−&agr;(x)T” represents a degree of dependency on resin temperature influencing the injection pressure.

Abstract: Method of adjusting the lip opening of an extrusion die for stratiform material, with the characteristic that it consists in the combination of, on the one side, the control of the heating of bar shaped elements (9) which act upon at least one of the lips (6-7) of the lip opening (5), in function of the thickness of the formed material, and on the other hand, the common cooling of several bar shaped elements (9) by forcing a cooling medium along these elements (9).