Abstract: A method and device serve the tempering preforms of a thermoplastic material. The preforms are modeled subsequent to tempering into a container inside a blow-molding mold by the action of a medium under pressure. During tempering, the preforms are heated by being acted upon by a heat radiation as well as cooled by being blown upon with cooling air, at least in the surface region. For compensation of a change in the surface temperature of the preforms due to operating ambient parameters, a change in the intensity in the subjecting of the preforms to cooling air is conducted. This takes place such that with simultaneous heating and cooling a basically constant surface temperature of the preform is attained. In addition, the intensity of heat radiation can be regulated for adaptation to at least one operating parameter.

Abstract: A spunbond fleece is made by passing cellulosic filaments from a spinneret in a travel direction through a cooling chamber having upstream and downstream compartments spaced apart in the travel direction. In each of the compartments a respective stream of cooling air is directed against the filaments. The cooling air of each stream has parameters of temperature, humidity, and flow rate. At least one of the parameters of one of the streams is varied such that it is different from corresponding parameter of the other stream.

Abstract: The present invention provides a method and system for controlling the quality of a product produced by an injection molding production process. The invention includes performing a multivariate analysis on injection molding process data collected real-time and determining whether the real-time data is within a predetermined production control limit. When the real-time production data exceeds the control limit, the process is considered out of control and product produced during the out of control condition is removed real-time from the injection molding production process.

Abstract: An injection molding system includes a hot runner comprising a memory device configured to contain at least one process control parameter. The memory device may transmit a signal representative of the process control parameter to a machine controller associated with the injection molding system. The machine controller may generate control signal to operate the injection molding machine based on, at least in part, the signal from the memory device.

Abstract: A hot runner includes a manifold having a manifold channel and a plurality of nozzle coupled to the manifold. The manifold channel includes a plurality of branches and a manifold heater. Each of the plurality of nozzles includes a nozzle channel and a nozzle heater, the nozzle channel for receiving molding material from a branch of the manifold channel and delivering molding material to a mold cavity. At least one temperature sensor is located near the interface of the manifold and at least one of the nozzles. The temperature sensor is connected to a controller and the controller is connected to at least one of the nozzle heaters. The controller controls power to the nozzle heater according to a temperature measured by the temperature sensor.

Abstract: In a method of vulcanizing a tire in which heating plates 7, 8 are brought into contact with an outside of a vulcanization mold 1 and thermal fluids are supplied to jackets disposed in the heating plates 7, 8, there are provided a tire vulcanizing method capable of satisfying conditions of allowable vulcanization degree range and allowable maximum temperature previously determined every tire site in all of plural tire sites at least including a bead portion BD and a shoulder portion SH, and a method of setting a tire vulcanization process. At least a part of supply conditions including kind, fluid temperature and supply timing of the thermal fluid are made different between inner jacket and outer jacket.

Abstract: A mold portion of a molding tool for making plastic articles includes a base body defining a cavity surface and having formed therein at least one heating channel, and at least one cooling channel separated from the heating channel and having a cross section which is smaller than a cross section of the heating channel. The cooling channel is positioned hereby closer to the cavity surface than the heat channel and thus is in an area between the heat channel and the cavity surface, thereby defining a cavity-proximal cooling channel and a cavity-distal heat channel. Before the injection process, the cavity surface is heated by the heat channel to a higher temperature than the demolding temperature of the plastic article to be formed. At the end of the injection process, the cavity surface is cooled by the cooling system.

Abstract: A method of cooling blown film consisting of thermoplastic plastics during the production of blown film by means of a blown film extruder with a film blowing head which comprises an annular nozzle from which the blown film emerges and is guided away in an extraction direction, wherein at least two cooling gas flows are made to approach the blown film from the outside in at least two blowing-out planes located at a distance from the annular nozzle, wherein at least one cooling gas flow KG is blown out in the direction opposed to the extraction direction of the blown film and wherein at least one cooling gas flow KA is blown out in the extraction direction of the blown film, and wherein, at least one of the cooling gas flows KG, KA can be controlled around their circumference in sectors, at least in respect of its volume flow or temperature.

Abstract: It is an object of the present invention to provide a foam molding method for foaming and molding a foamable material, which is free from problems, such as deformation of or continuation between closed cells. To achieve this object, there is provided a foam molding method for foaming a foamable material, comprising the steps of providing a mold having a cavity, placing the cavity of the mold under a pressurized condition, foaming the foamable material in the cavity of the mold under the pressurized condition, thus appropriately controlling foaming of the foamable material, and releasing the pressurized condition of the cavity of the mold.

Abstract: A method for regulating the contraction of molded parts in a cavity in a mold of an injection molding machine after completing the filling process of the cavity with molten mass. According to the method, the temperature of the mold is regulated, whereby the temperature and/or the internal pressure in the cavity is monitored and adapted to a reference curve by performing temperature equalization of the mold from the end of the filling phase or from a maximum pressure in the cavity until the end of the injection cycle.

Abstract: Methods and systems have been developed allowing for increased strain storage in shape memory polymer devices. Larger stored strains allow for smaller and different implantable shapes of shape memory polymer devices. For example, by storing a larger strain, a shape memory polymer device may be implanted at a smaller fraction of its final implanted shape. Benefits include shorter patient recovery times, smaller implantation sites, and flexibility of implantation techniques.

Abstract: A method for controlling the injection moulding process of an injection moulding machine with an injection moulding tool that forms at least one cavity for a moulded part to be produced, wherein a melt is introduced into the cavity by an incision. The temporal progression of the temperature of the mould wall is determined and controlled in the course of the injection moulding process.

Abstract: A process and a device for producing a three-dimensional object is provided, with which process or device the object is produced by layer-wise solidification of a pulverulent material by sintering of the material at the points corresponding to the cross-section of the object by means of the action of radiation energy. The process comprises the application of a layer of the pulverulent material onto a substrate or a previously sintered layer, pre-heating of the pulverulent material to a working temperature below the temperature at which the powder is sintered and sintering of the material at the points corresponding to the cross-section of the object in the layer, wherein a step of controlled heating of an applied powder layer and of determining the quantity of heat taken up by the powder per (FIG. 3) temperature interval for at least two temperature intervals is carried out.

Abstract: An injection apparatus has a cylinder member having a feed opening (215) formed at a predetermined position; an injection member disposed within the cylinder member in a manner capable of advancing and retreating; a molding-material feed apparatus which attached to the feed opening (215) and feeds a molding material into the cylinder member through the feed opening (215); and thermoelectric cooling elements (261) to (264) disposed at predetermined positions around the feed opening (215). Since the thermoelectric cooling elements (261) to (264) are disposed at the predetermined positions around the feed opening (215), temperature around the feed opening (215) can be brought to an appropriate value, and the response of temperature control can be enhanced.

Abstract: A device and method for producing a spun-bonded non-woven. A molten polymer supplied to a spinning beam from a melt source is extruded through a multiplicity of linearly arranged spinneret bores into filaments arranged in the form of a curtain. A tensile force is exerted on the filaments by means of a draw-off nozzle. The filaments are thereupon deposited on to a conveyer belt where they form a spun-bonded non-woven. At the draw-off nozzle, a monitoring means is provided which detects a characteristic quantity characteristic of the process. One or more structure-borne sound sensors are preferably used as monitoring means. The measurement result of the monitoring means, after a desired value comparison, is supplied to a signal means or is used for regulating the process.

Abstract: Disclosed is: (i) a method of a molding system, (ii) a method of a controller of a molding system, (iii) a method of an article of manufacture of a controller of a molding system, (iv) a method of a network-transmittable signal of a controller of a molding system, (v) a method of a molding system having a controller, (vi) an article made by usage of a method. The method includes an operation of identifying quality of the molded article that was molded in a mold based on a determination of whether a plug blew, at least in part, from a melt passageway to the mold prior to a molding material entering the mold.

Abstract: The identification and location of possible faults of operation and/or installation of a hot runner are obtained through the measurement of the absorption of power by the heating resistors applied to the arms and to the injectors of the hot runner. The qualitative and quantitative analysis of the power absorbed by the resistors also enables identification of the type of possible faults and the corresponding seriousness.

Abstract: A continuously operating press for the continuous manufacture of wood material boards having a textured surface on at least one side includes: an upper frame part and a lower frame part; two endless steel belts configured to draw a mat of material through the continuously operating press and to transfer press pressure, each steel belt associated with one of the upper frame part and the lower frame part; an endless metal mesh belt associated with a corresponding one of the steel belts; an insulating tunnel associated with the metal mesh belt and the corresponding steel belt; and a heating tunnel associated with the metal mesh belt and separated from the corresponding steel belt. The metal mesh belt includes a material having a thermal conductivity substantially higher than that of the corresponding steel belt and having a thermal expansion coefficient approximately equal to that of the corresponding steel belt.

Abstract: [Problem] Proper cooling of a molten sheet product by bringing the sheet into close contact with a movable cooling member, by properly charging over the whole width of the molten sheet product extruded on the movable cooling member. [Solving Means] A sheet production apparatus comprising an extruder 3 to extrude a thermoplastic resin having a melt specific resistance value of not less than 0.

Abstract: A process of controlling the thickness profile of a blown tubular film, consisting of thermoplastic plastics, around the circumference of same when producing blown film by means of blown film extruders, having a film extrusion die, wherein a measuring device measures the film thickness of the tubular film around the circumference and wherein a control device variably controls the cooling gas flow as a function of the measured film thicknesses around the circumference in sectors, wherein cooling gas flows are supplied from the outside in the direction of production in two separate planes, and wherein the cooling gas flows are controlled variably and in circumferential sectors around the circumference in the two planes in respect of their physical parameters.

Abstract: Method for forming a rubber strip which enables a wider rubber of small thickness without lowering an extruding speed and enables to reduce a building cycle time, thereby increasing the efficiency of tire manufacturing. Temperatures at a main-part casing 11, a screw shaft 12 and a head region included with the die 13 are controlled to be different from each other in a manner that: the temperature as controlled in the main-part casing 11 is higher than that in the screw shaft 12; and the temperature as controlled in the head region is higher than that in the main-part casing 11, when continuously extruding a rubber material in a form of a ribbon in forming a rubber strip 1.

Abstract: A sensory system and method for optimizing the cycle time of a part-forming process, wherein the temperature status of a molded part is ascertained and utilized to enable minimization of mold close time.

Abstract: Disclosed is: (i) a thermal management system of a molding system, (ii) a molding system having a thermal management system, and/or (iii) a method of a molding system having a thermal management system, amongst other things.

Abstract: An injection molding quality control system which seeks to ensure greater accuracy and consistency in parts, more specifically more accurate and consistent part weight, utilizes measured part weight to adjust mold separation to better achieve a desired part weight. The mold separation is controlled via both a cycle-to-cycle adjustment in switchover point (preferably based on injected mass within the cavity), and within-cycle adjustment of holding pressure. The system can result in superior accuracy and consistency in molded parts in both the long term (i.e., over many cycles) and in the short term (from cycle to cycle).

Abstract: A mold temperature adjusting apparatus is provided in which change-over timing of high temperature medium and low temperature medium is adjusted by a heat transmission delay in heating and cooling of a mold being taken into consideration, so that a cycle time of molding steps is shortened, a temperature deflection from a set temperature of the high temperature and low temperature medium is reduced, an energy loss is reduced and an optimal mold temperature for an injection step can be obtained.

Abstract: The identification and location of possible faults of operation and/or installation of a hot runner are obtained through the measurement of the absorption of power by the heating resistors applied to the arms and to the injectors of the hot runner. The qualitative and quantitative analysis of the power absorbed by the resistors also enables identification of the type of possible faults and the corresponding seriousness.

Abstract: A provisional temperature estimating mathematical expression is set in accordance with which plasticizing conditions used as terms are to be multiplied by unknown coefficients. Then, a given number of experiments not smaller than the number of the unknown coefficients are conducted while the plasticizing conditions are varied, so as to acquire various experimental data. The unknown coefficients are converted into known coefficient in accordance with the acquired experimental data so as to provide a complete temperature estimating mathematical expression, on the basis of which a plasticized resin temperature and noise-outlet resin temperature are determined arithmetically.

Abstract: While steam is supplied to flow channels to heat inner cavity surfaces to a temperature equal to or higher than the heat distortion temperature of a molding resin, the resin mixed with a supercritical fluid is injected from an injection molding machine into a mold cavity. When the injection of a predetermined quantity of the resin is completed, the supply of the steam to the flow channels is stopped, and cooling water starts to be supplied to the flow channels. The inner cavity surfaces are thus quickly switched from a heated state to a cooled state, cooling and solidifying the resin into a molded product of good appearance which is free of broken cell marks on its surface.

Abstract: A system and method for thermal management of a die is disclosed wherein cooling of the die is controlled by controlling coolant flow to switch between laminar flow and turbulent flow as desired.

Abstract: An injection mold and process are arranged to produce very thin articles, such as data discs. Molten plastic is injected into mold parts forming a thin cavity (17), in a cyclic molding process wherein the mold parts are subjected to a substantially constant temperature stimulus and rise and fall in temperature during injection and cooling of the molten plastic. Temperature boosting thermal insulation layers (11, 21) are placed along at least certain parts of the molding cavity surface. This elevates the temperature of the molted melt material for a time during injection. According to a calculated relationship, this thermal insulation is sized to permit the thin mold cavity to fill before heat transfer to the mold parts solidifies the molding material and blocks further flow. The temperature boosters can be contoured in thickness.

Abstract: A molded disc substrate obtained by injection molding is rotated at high speed before the molded disc substrate has solidified, and a gas is also made to flow in an outward radial direction along a bottom surface of the molded disc substrate while the molded disc substrate is rotating, and the rotation is stopped after the molded disc substrate has solidified. Thus, a disc substrate with little warping is obtained in a short time.

Abstract: A monitoring device for an injection molding machine whereby the state of resin sheared by a rotating screw can be easily monitored. During the period from the start to end of metering process, the rate of heat generated by a heater for heating an injection cylinder is obtained by multiplying an on/off ratio B of the heater by a coefficient K and stored in a memory location THmem(n). Also, a time elapsed from the start of the metering is obtained by adding up a processing period T and stored in a memory location Tim(n). The heat generation rates of the heater stored in memory and corresponding to the respective elapsed times are displayed in graph form. The temperature of the injection cylinder represents heat generated by the heater plus heat generated due to resin shearing.

Abstract: Injection molding machine with a mold that can be opened and closed, into the mold cavity of which a fluid molding compound, preferably plastic, can be injected, and with at least one reading device (12) for at least one transponder (13) arranged in the mold cavity (4).

Abstract: A stretch blow molding system that condition preforms such that the temperature distribution within the cross-section of each preform is optimized prior to blow molding operations is provided. The system has a temperature measurement and control system capable of directly monitoring both the outside as well as inside surface temperature of preforms at different stages of transport throughout the thermal conditioning section of the system.

Abstract: A method of treating a disc plate. has the following operations of: molding a mold disc plate through an injection molding; and spinning the mold disc plate at a high spin speed. The spinning operation has at least one of the following two sub-operations of: reducing a warp of the mold disc plate with a centrifugal force caused during the spinning operation, and reducing a temperature of the mold disc plate during the spinning operation. Moreover, an apparatus of treating a disc plate has: a conveyer for conveying a mold disc plate obtained through an injection molding; a disc bench for receiving the mold disc plate conveyed with the conveyer; and a spin driver for spinning the disc bench when a temperature of the mold disc plate is higher than 90° C., to thereby spin the mold disc plate.

Abstract: An injection molding apparatus for delivering a melt stream of moldable material to a mold cavity. A valve pin extends through a melt channel of the apparatus that is axially movable to control the melt stream within the melt channel and/or to selectively open a gate to allow communication with the mold cavity. A processing sensor is coupled to the valve pin and is axially movable therewith. By example, the processing sensor may be a pressure sensor and/or a temperature sensor for sensing processing condition(s) of the melt stream and providing sensed information to a controller.

Abstract: A method and apparatus for controlling the temperature of an injection mold passes pressurized air contained in an air supply tube through an orifice into an exhaust channel, wherein the pressure of the air in the exhaust channel is lower than the pressure of the air in the air supply tube. As the pressurized air is released through the orifice, cooling is produced that can be applied to a portion of an injection mold where cooling is desired, in order to control the temperature of that portion of the injection mold.

Abstract: A method of extruding a mixture made of a granulate, chips, or powder, etc. of a first thermoplastic and a second thermoplastic is described, the melting range of the first thermoplastic differing from the melting range of the second thermoplastic, using an extruder which has a heatable housing and a screw, which has an intake zone, a melting zone, a delivery zone, and a hole, extending from the intake zone up to the delivery zone, into which a temperature control media may be introduced, in which the temperature control medium causes heating of the screw in the intake zone to a temperature below the melting range of the thermoplastic having the lower melting range and temperature control of the screw in the delivery zone to a temperature which lies between the melting range of the first thermoplastic and the second thermoplastic.

Abstract: An apparatus and method is disclosed for repairing and removing scratches from an optically-read disc, e. g., compact discs (often called “CD's” or “DVD's” such that when refurbished, an optical reader, which uses a laser to read digital information stored on the disc, can read the digital information on the disc without the optical distortion caused by a scratch and like surface imperfection.

Abstract: Auxiliary end heating devices on an elongated, heated hot melt distribution manifold body assist in maintaining uniform temperatures throughout all portions and passageways of the manifold body. The heating devices preferably take the form of thick film electrical resistive heaters of plate-like construction. The end heaters are on their own control circuit separate and apart from the circuit for other heaters for remaining portions of the manifold body. Special isolating slots are formed in lower corners of the manifold body between supporting standoffs and overhead melt passageways in the manifold body.

Abstract: A group of multiple hollow fibers may be shaped to introduce angular divergence among the fibers, or to introduce a selected longitudinal oscillation into the fibers. In one shaping technique, the fibers are held in parallel while upper and lower crimping assemblies of parallel crimping bars are drawn together on opposite sides of the parallel fibers. When bars of the opposing assemblies draw sufficiently close, they sandwich the fibers in between them, causing each fiber to assume a shape that oscillates as the fiber repeatedly goes over and then under successive bars. Since the crimping bars are aligned at oblique angles to the fibers, the peaks and troughs of successive fibers are offset. While in this position, the fibers are heated and then cooled to permanently retain their shapes. A different shaping technique utilizes a lattice of criss-crossing tines defining multiple apertures. In this technique, the lattice and fibers are positioned so that each fiber passes through one of the apertures.

Abstract: An apparatus and method 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. In accordance with one embodiment, microwave energy can also be used without a mold to form a medical device.

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: An extrusion control system that controls the cross section and viscosity during extrusion of even hard to control plastics like polyurethane. Cross section, A, is determined by measuring volumetric rate of deliver of melt through a gear pump V/t and the speed of the extrudate at a puller N/t. The cross-section area, A=(V/t)/(N/t), is controlled by controlling the puller speed. Pressure drop across the die, P, and the volume of melt delivered by the gear pump are measured and a term indicative of the viscosity of the melt is determined based on Vs=(KP)/V, Vs being the viscosity and K being a constant dependent on the size and shape of the die orifice. Viscosity variations are compensated by varying heat applied to the melt.

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 heat exchange apparatus for a metal mold is provided, which includes a heat exchange passage provided for the metal mold, a first supply unit for supplying hot heat carrier to the heat exchange passage and a second supply unit for supplying cold heat carrier to the heat exchange passage. The heat exchange apparatus performs heat exchange for the metal mold by supplying the hot heat carrier and cold heat carrier to the heat exchange passage switching alternately. And the heat exchange apparatus has a feature that it includes an air supply unit for supplying air to the heat exchange passage so that the heat carriers are purged when the hot heat carrier and cold carrier are switched.

Abstract: A method of forming a pot for an array of hollow fiber membranes (7) is provided, including the steps of placing the ends (6) of the fiber membranes (7) in a mould (5); forming a first layer (20) of curable resin material in a non-cured state around the fiber membrane ends (6), applying a second layer (21) of a polyurethane resin material to the first layer (20) prior to full curing of the first layer, the polyurethane resin material layer being chemically reactive with the first layer material to form an adhesive bond therebetween; at least partially curing both layers and removing the pot formed from the mould (5), wherein the second layer material is of higher flexibility than the first layer material when each layer is fully cured. Apparatus for performing the method is also disclosed.

Abstract: The invention provides a method for measuring the thickness, or non-uniformity of thickness, of one or more layers of a film or article such as a preform. At least one layer contains a known concentration and a substantially uniform distribution of fluorophores. The fluorophores are added to the one or more layers in sufficient quantity to impart fluorescence capable of detection by a detector when exposed to electromagnetic radiation at absorbing wavelengths. The layers of the invention may be made from polymeric material, non-polymeric material, or combinations thereof.

Abstract: An injection molding machine using a linear motor, has a linear motor serving as a linear drive mechanism; a temperature sensor configured to detect a temperature of a coil of said linear motor or an ambient temperature thereof; an input unit configured to input a signal of the temperature detected by said temperature sensor; a data converting unit configured to convert the detected temperature signal into temperature data; a storage unit, including a temperature data setting unit configured to preset an allowable temperature, etc.

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.