Abstract: A mold assembly that is adapted to clamp fixed mold and movable mold together while making temperature adjustment and inject a molding material into a molding cavity provided therebetween, thereby producing an optical part. The mold assembly is one including fixed platen supporting fixed mold, provided on a part of its mold-side surface with locating hole and including ring of configuration with external and internal surfaces, fitted at its external surface in the locating hole, wherein the fixed mold is provided with a locating projection protruding toward the fixed platen, fitted in the internal surface of the locating hole, and wherein the ring consists of a material whose linear expansion coefficient is smaller than those of the material of the fixed platen and the material of the locating projection.

Abstract: Methods and apparatuses are provided for casting silicon for photovoltaic cells and other applications. With these methods, an ingot can be grown that is low in carbon and whose crystal growth is controlled to increase the cross-sectional area of seeded material during casting.

Abstract: A portable mold-temperature control unit includes a local heating system, a first fluid duct, a second fluid duct, and a fluid exchange system. The local heating system includes a local heater for heating fluid that is used to rapidly heat a mold. The first fluid duct carries hot fluid heated by the local heating system. The second fluid duct carries cool fluid that is used to rapidly cool a mold. The fluid exchange system includes an outlet that permits fluid to flow from the first and second fluid ducts to the mold during heating and cooling, respectively. The fluid exchange system also includes an inlet that receives the fluid as it returns from the mold. In one embodiment, the heating system reheats the fluid returning from the mold and reuses it to heat the mold again. In a more particular embodiment, the heating system includes a steam generator that generates steam used to heat the mold.

Abstract: A device to manufacture an optical component, wherein a fixed metal mold 5 and a movable metal mold 6 are clamped to each other while controlling a temperature, and a molding material is injected into the cavity therebetween. In the device, there are disposed electrothermal conversion elements 15 and 25 to control the temperature by electrothermal conversion in response to an electric input, and a medium temperature control section 8 to control the temperature through heat exchange by circulating a heating medium in medium flow paths 16 and 26 in the device from an outside of the device.

Abstract: A die having a plurality of cavities and a temperature sensor for acquiring a temperature value in which the number of the cavities is larger than that of electrothermal conversion elements. When viewed from a direction perpendicular to the surface of a parting line, all cavities and a temperature sensor are arranged in a region occupied by the electrothermal conversion elements. Interval between the outlines of the cavities is smaller than the minimum interval between the outline of the cavity and the electrothermal conversion element, and the shortest distance between the electrothermal conversion element and the temperature measuring portion of a temperature measuring element is shorter than the minimum interval between the outline of the cavity and the electrothermal conversion element.

Abstract: An elevated temperature forming die apparatus comprising a lower die part having a first upper surface positioned to engage a lower surface of a first region of such a workpiece, an upper die part supported for reciprocal motion relative to the lower die part, the upper die part having a lower surface that engages an upper surface of a second region of a sheet material workpiece, heaters in thermal communication with the die parts, and a third die part having an upper surface that engages a lower surface of the second region of a sheet material workpiece whose first portion is positioned between the upper and lower die parts, the third die part being supported for reciprocal motion relative to the upper die part such that closure of the upper die part along the first stroke portion against the third die part will clamp the first portion of the workpiece between the upper and third die parts, and the third die part being supported for reciprocal motion relative to the lower die part such that, once the first p

Abstract: Honeycomb shapes are extruded from plasticized ceramic powder mixtures by methods that include reducing the core temperature of the charge of the plasticized mixture during transit through the extruder, such methods being carried out utilizing apparatus comprising twin-screw extruders incorporating actively cooled screw elements, whereby temperature-conditioned charges of plasticized material that exhibit reduced core-to-periphery temperature differentials are delivered for extrusion.

Abstract: Disclosed is a preferred mold design for producing plastic, molded preforms, which may be blow-molded into a container of a final, desired shape. A preferred mold includes a temperature control system for maintaining the preform mold at a desired temperature. The temperature control system can pass fluid through channels within the preform mold to cool plastic that is injected into the preform mold. In some arrangements, a mold comprises a neck finish mold, the neck finish mold configured to transfer heat away from the molding surface toward a channel conveying a working fluid. A heat transfer member may be at least partially positioned within the channel to transfer heat to the working fluid. In some embodiments, the mold comprises a high heat transfer material.

Abstract: A film die for the production of tubular film made of thermoplastic synthetics has at least one feed channel for the synthetic fused material which ends in a ring-shaped discharge nozzle with an interior and/or exterior cooling ring that is adjusted to the diameter of the extruded synthetic tube, in which physical parameters of the air blown onto the extruded film tube can be variably changed sector by sector. The film die is divided into sections, in which the temperature is individually variable, and/or additional bores are arranged across the circumference of the film die, which are essentially aligned vertical to the exterior cooling ring, whereby air of variable temperatures can be blown from them, the physical parameters of which are variable. The film die has at least one control unit that controls or operates the various measures for influencing the film thickness.

Abstract: Method for forming an item through compression-moulding having an asymmetrical section with differentiated volumes and thicknesses, comprising the steps of introducing a dose of semi-liquid resin into the recess of a mould, inserting a plunger in said recess to create the interspace intended to be occupied by the material pushed by the plunger, removing said plunger and withdrawing the item that stays stuck to the plunger or to the recess, where the interspace intended for the forming of the item is created in two successive steps, the first comprising the insertion of a first plunger into the recess, and the second comprising the action of a second plunger that acts in a portion (accumulation chamber) of the interspace created by the insertion of the first plunger, completing the creation of the interspace in which the item is formed.

Abstract: A method manufactures molded fatty acid based material products by forming a fatty acid based material paste and injecting the paste into a mold having internal cavities. The method includes generating a fatty acid based material paste, injecting a portion of the fatty acid based material paste under pressure into a cooled mold having at least two separable shells that form product cavities, and separating the shells of the cooled mold to release molded fatty acid based material products from the product cavities.

Abstract: A method manufactures solid ink sticks by forming a solid ink paste and injecting the paste into a mold having internal cavities. The method includes generating a solid ink paste, injecting a portion of the paste under pressure into a cooled mold having at least two separable shells that form ink stick cavities, and separating the shells of the cooled mold to release solid ink sticks from the ink stick cavities.

Abstract: The invention relates to an apparatus, particularly a extruder or injection molding machine, for user-specifically monitoring and preferably regulating the processing of plastic materials. Said apparatus comprises a material feeding mechanism (1) that delivers the plastic as a raw material, a plasticizing device (2) which plasticizes/homogenizes the raw material, and a molding device (3) that shapes the plasticized/homogenized raw material into a product. A data link can be established between a control device (5) and an input device (130) via which at least one value of a process input variable, such as the cost of the apparatus, the raw material, power, and processed quantity, can be input. At least one process monitoring variable, e.g.

Abstract: The invention relates to a method for monitoring an electrical heating apparatus and to a corresponding apparatus. The electrical heating apparatus has at least one heating element. A measured value, which is dependent on the resistance and/or the inductance of the electrical heating element, is measured, the measurement being carried out by means of the measured value being sampled. Owing to the use of sampled values, the measurement process can be shortened.

Abstract: There are provided an injection molding system, a computer program, a method of injection molding, and an injection molding machine capable of performing precise temperature control of a mold even when there is a delay in temperature increase of the mold in heat supply with a heating medium. The temperature control is performed so that temperatures of a fixed mold and a movable mold are maintained between an upper limit TU and a lower limit TL of a predetermined temperature range after start of injection of resin during an injection molding cycle. The temperature control of the fixed mold and the movable mold is performed only by switching ON/OFF supply of the heating medium, and cooling with a cooling medium is not performed.

Abstract: A mold temperature controlling device includes a main body. The main body defines a recess in a surface thereof and through holes therein. The recess is configured to receive a mold core. The through holes are positioned around the recess and configured to allow mold temperature adjusting fluid to flow through.

Abstract: The present invention provides a mold multiple heating and cooling system which, for a plurality of molding machines, allows a single temperature control apparatus to be used to selectively supply steam or warm water, or cooling water for carrying out molding, and eliminates the need for separately installing a venting apparatus.

Abstract: The invention relates to an electric heating unit for hot runner systems, in particular for hot runner nozzles and/or hot runner manifolds, comprising at least one tubular or muff-like support made of a sintered substance and comprising at least one heating layer fitted with heating conductor tracks, where said heating layer is a fired foil or a fired thick-film paste.

Abstract: A mold assembly that is adapted to clamp fixed mold and movable mold together while making temperature adjustment and inject a molding material into a molding cavity provided therebetween, thereby producing an optical part. The mold assembly is one including fixed platen supporting fixed mold, provided on a part of its mold-side surface with locating hole and including ring of configuration with external and internal surfaces, fitted at its external surface in the locating hole, wherein the fixed mold is provided with a locating projection protruding toward the fixed platen, fitted in the internal surface of the locating hole, and wherein the ring consists of a material whose linear expansion coefficient is smaller than those of the material of the fixed platen and the material of the locating projection.

Abstract: An injection molding machine 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 machine system. The machine controller may generate control signal to operate the injection molding machine system based on, at least in part, the signal from the memory device, wherein the at least one memory device is pre-programmed to have the information pertaining to the at least one process control parameter prior to a first run in the injection molding system.

Abstract: A mold assembly for an automated dry-cast block machine including a mold cavity formed by a plurality of frame elements, and a moveable liner plate positioned within the mold cavity and having a first major surface facing an interior of the mold cavity and a second major surface opposite the first major surface and facing away from the interior of the mold cavity, the liner plate configured to be moved toward and away from an interior of the mold cavity. At least one heater element is coupled to the second major surface of the moveable liner plate, the heater element configured to move with the moveable liner plate and to maintain the first major surface at a desired temperature.

Abstract: The invention relates to a method for monitoring and/or controlling the melt filling of at least one cavity of an injection molding machine, in particular, by means of a cold channel tool. The invention also monitors the time which is required for the melt to reach the sensor in the cavity and modifies the viscosity of the. melt in the event of variations and/or differentiations in said time.

Abstract: A liquefier assembly comprising a liquefier tube, where the liquefier tube comprises a sidewall having an inlet opening configured to receive a filament strand, an outlet opening, and a port disposed through the sidewall at a location between the inlet opening and the outlet opening, the port being configured to provide access for a filament drive mechanism to engage with the received filament strand. The liquefier assembly further comprises a heat transfer component configured to generate a thermal gradient along a longitudinal length of the sidewall between the port and the outlet opening.

Abstract: An injection molding machine configured so that items of molding conditions of which values are not changed can be set selectively when a set of molding conditions is read from a storage device so that values for the read molding condition items are set as the set values. Installation setting is established for the set items of those molding conditions of which set values are prohibited from being changed. When a set of predetermined values of the molding conditions is read from the storage device and set collectively, the set values for only those set items which are not designated to the installation setting are rewritten to the read values without changing the set values for the items designated to the installation setting. If a password with which the installation setting can be designated and canceled is entered, an installation setting mode is established, whereupon the installation setting for the set items can be designated or canceled.

Abstract: A temperature adjustment mechanism for use in an injection molding machine that shortens a molding cycle time while preventing the occurrence of a stranding phenomenon in an optimum manner. A passage includes an opening arranged near an outer surface of an outlet of an injection nozzle for an injection molding machine. A supply control unit supplies the passage with at least one of cooling air and heating air to selectively eject the cooling medium, the heating medium, and a mixture of the cooling medium and the heating medium near the outer surface of the outlet.

Abstract: A molding apparatus includes a mold plate, a mold core received in the mold plate, a plurality of temperature sensors and a heater. A heat passage is defined in the mold plate and adjacent to the mold core. The heat passage is configured for flowing a heating medium therethrough to heat up the mold core. The plurality of temperature sensors are mounted in the mold plate for sensing a temperature of the mold plate. The heater is configured for heating the mold plate according to the temperature sensed by the sensors.

Abstract: In a skin needle manufacturing apparatus 10, a material melted in a syringe 45 is discharged from a fine hole 47a of a pin member 47 and is caused to adhere to a base 48. A computer 50 causes a drive mechanism 48 to separate the pin member 47 from the base 48. Then, the material 80 having adhered to the pin member 47 and the base 48 is drawn out. A projection portion 48b formed of a part of the material 80, which has adhered to the base 48, is formed into a skin needle 81. Consequently, a skin needle can relatively easily be manufactured without requiring excessive time, effort, and cost.

Abstract: Disclosed are systems and methods for the use of a micro-bead EMF junction in the sensing and control of an injection molding process, whereby the improved junction is able to reliably sense and indicate temperature and pressure changes in a molding process.

Abstract: Provided is a molding machine system enabling a free setting of execution timings of respective steps in a molding cycle of heating of a mold, injection and pressure holding of a molding material, cooling of the mold, etc. The molding machine system repeating a series of molding cycle comprises three temperature sensors arranged at predetermined places of a mold, a change-over valve unit having a heat medium channel by which heating medium from a heating unit, cooling medium from a cooling unit and pressurized air are changed over to be supplied into and recovered from the mold and a molding control means, provided on the change-over valve unit, having a temperature judging program judging respective detected temperatures of the three temperature sensors to give a judgement result and a timer to give a time set signal.

Abstract: An injection molding machine is equipped with a heating cylinder (11) to which a molding material is supplied and a screw (13) that is driven in the cylinder to meter the molding material. A plurality of heaters (41-1 to 41-4) are provided in alignment in an axial direction of the cylinder so as to individually heat each part of the heating cylinder (11) at a predetermined setting temperature. A cylinder temperature controller (40) individually controls the setting temperatures by the heaters (41-1 to 41-4). When a predetermined one of the setting temperatures by the heater (41-1 to 41-4) is set, the cylinder temperature controller (40) acquires the rest of the setting temperatures by calculation based on molding conditions.

Abstract: A process and a device for moulding elastomeric articles. The device comprises: a mould (2) having a mould cavity (3); injection means (4), for injecting an uncured elastomeric material (1) into the mould cavity; a shut-off valve (9), for shutting off the mould cavity, which can move between an open position and a closed position; and control means (10), for controlling the temperature of the elastomeric compound contained in the mould cavity.

Abstract: Disclosed are a method and an apparatus for fabricating solar-grade high purity polycrystalline silicon compacts. Silicon compacts are fabricating by loading polycrystalline silicon powders into a mold without addition of binders in a vacuum atmosphere, and pressurizing and heating the polycrystalline silicon powders. Heating method includes a high-frequency induction heating type, an Ohmic heating type, and a high current supply type.

Abstract: An aspect of the present invention provides a method for producing a saturated norbornene resin film by melt film-forming method comprising discharging a molten resin molten in an extruder in a form of a sheet onto a traveling or rotating cooling support from a die so as to be solidified by cooling, wherein the molten resin discharged from the die is subjected to a close contact treatment which allows only the both end parts of the full width of the molten resin to closely contact to the cooling support. According to the aspect, a close contact treatment which allows only the both end parts of the full width of the molten resin discharged from the die to closely contact to the cooling support is conducted in the melt film-forming of a saturated norbornene resin film, a saturated norbornene resin film having an excellent surface quality without the surface quality defects such as step irregularities can be produced.

Abstract: For controlling temperature in the molding of plastics, metal, ceramic, or die-casting, a circulator supporting a molding machine includes a fixed displacement pump driven by an electronic servo motor for volumetric metering of thermal fluid to or from the molding machine. A pre-set or dynamically controlled volume and flow rate profile matches the heating and cooling requirement of a molding machine and process. Volumetric metering may be based on parameters such as time, machine cycle status, temperature, pressure, and/or flow rate. Fluid may be circulated through the mold at positive or negative pressure at fixed, variable, or pulsed flow. The supply side in a fluid loop may be restricted so as to cause a pressure drop in or upstream of the mold, die or barrel, and seed bubbles may be injected into the fluid flow to excite vaporization and lowering of the fluid temperature.

Abstract: A temperature control system includes a mold device having a mold cavity formed between two or more mold pieces for receiving a filling material, a number of detecting devices attached to the mold pieces for detecting the temperature of the mold pieces, a heating device for heating the mold pieces to a desired temperature, and a control module coupled to the mold pieces for closing and opening the mold cavity of the mold device, and for receiving the detected temperature signals from the detecting devices, and for controlling the heating device, such as for moving the heating device relative to the mold pieces of the mold device and for suitably pre-heating the mold pieces of the mold device.

Abstract: A manufacturing method for an actuator including a casing and a housing. The method includes setting a metallic ring in a molding die; injection molding a first flange portion of the casing using one annular hooking piece of the metallic ring as a part of a surface of the molding die so as to outsert-mold the metallic ring on a molded surface of the first flange portion, the molded surface being opposite to a first connecting end surface of the first flange portion; engaging the first flange portion with a second flange portion of the housing so as to be opposed to each other; and applying force to bend the metallic ring to form an other annular hooking piece, thereby crimping and fixing the first connecting end surface of the casing with a second connecting end surface of the housing.

Abstract: Disclosed, amongst other things, is a gate insert of an injection mold that includes a base member. The base member defines a nozzle interface for receiving, in use, a nozzle of a melt distribution system that is heated, in use, by a heater, and a gate, the gate configured to fluidly link, in use, a melt channel of the nozzle with a molding cavity. The gate insert further includes a thermal regulator associated with the base member, the thermal regulator includes a direct energy conversion device that is capable of heating and cooling, wherein the thermal regulator is controllably operable, in use, to control the temperature of the gate.

Abstract: An injection molding apparatus includes a manifold having a melt channel for receiving a melt stream of moldable material from a source. A nozzle having a nozzle channel is coupled to the manifold for receiving the melt stream from the manifold melt channel. The nozzle includes a heater. A mold cavity is in communication with the nozzle channel, the mold cavity for receiving the melt stream from the nozzle channel through a mold gate. A temperature sensor is disposed at the manifold for use in adjusting the heater of the nozzle or for use in adjusting a heater of an inlet body.

Abstract: A dope (15) is prepared with using TAC as a polymer. The dope (15) is transferred with heated by a transferring device (30). A heating medium (36) is used to heat the dope in the transferring device (30). A passage (35) for the heating medium (36) is formed between a cylinder (31) and a jacket (34). The jacket (34) is attached to flanges (32), (33) so as to form a full jacket. When the heating medium (36) is fed in the full jacket, a temperature of the flanges (32), (33) becomes equal to a temperature of the cylinder (31). Accordingly, temperature profile of the dope (15) becomes small, because there is no low temperature portion in the transferring device (30). Therefore, gelatinous material, which is caused by association generated on the low temperature portion, is not in the dope (15).

Abstract: A system and a method for two-shot molding a crash pad, in which a passenger side air bag (PAB) door region is more flexible than other regions is disclosed. The system includes a first resin supply unit, a second resin supply unit, a temperature sensor mounted on a predetermined position of a mold, adjacent to a target material interface, and a controller for controlling a time at which to supply the second resin into the passenger side air bag region based on a detection signal from the temperature sensor. This system is cost effective and can maintain a uniform interface between different types of materials.

Abstract: The invention relates to an apparatus and method for producing containers. The apparatus comprises at least one heating unit which heats preforms; at least one blow moulding unit which expands heated preforms to form containers; at least one sensor device which outputs at least one measured parameter representative of a physical state of the preforms or containers; wherein at least two control parameters of the heating unit or of the blow moulding unit can be varied; and an adjusting unit which is configured in such a way that it adjusts the control parameters as a function of the measured parameter. According to the invention, the adjusting unit comprises an associating device which associates control parameters with predefined measured parameters in a manner that is freely predefinable.

Abstract: A control system for use with a multi-layer molding device having an inspection device for measuring a characteristic of a product of a cavity of the molding device and a controller adapted to receive information corresponding to the at least one characteristic from the inspection device and to alter the molding device based on the information.

Abstract: The invention relates to a method and to a device for controlling/regulating the distribution of the injection molding compound in multi-cavity injection molds, especially for molds with a large number of cavities, for example 48 to 128 cavities. The invention distributes the injection molding compound in groups of, for example, four to twelve nozzles. Each group is provided with one classical nozzle, as the master nozzle, that is controlled via the local heating capacity and temperature sensors. All other nozzles or cavities of the same group are configured as slave nozzles that have no temperature sensors. The virtual actual temperatures are computed via saved model computations and are displayed on the user panel. The user is thus provided with the desired/actual temperature values for every nozzle and can thus influence every single nozzle, depending on the result, in the form of temperature values.

Abstract: Fibrous combustible material such as biomass or biomass refuse is coarse chopped, dried and then may optionally loaded, transported, and unloaded. The biomass is further processed to a desired size and bulk density. Low speed knife cutters are used for cutting the fiber instead of crushing. Fibrous combustible material having a moisture content of approximately 20% and a temperature of approximately 70-80° C. is extruded between rollers and a fixed flat die, and releases glutinous juices during extrusion which enable pellet formation while also producing a polished cover to the extruded pellet during simple air cooling. A low and variable speed of 2-3 meters per second between rollers and fixed flat die is used for pelletising fibrous biomass. A desired temperature of the fixed flat die is maintained by circulating hot or cold water.

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: A device for forming objects in a cavity, the device being at least partially formed by an insert in a molding plate. A sensor is arranged in the insert towards the inner wall of the cavity embodied by the insert, the sensor being connected to a first coupling part with which a second coupling part is to be associated in the molding plate.

Abstract: Among other things, there is disclosed a system for curing a resin in a composite structure having one or more interconnected cure volumes, the cure volumes having one or more heatable surface zones. The system comprises a mould comprising a mould base portion adapted to support the composite structure and a mould closure portion adapted to overlie the mould base portion in sealable relation to define a mould chamber containing the composite structure within. The system further comprises a plurality of heating units each selectively positionable about the mould. The heating units transmit heat to the mould by radiation, and the mould heats the one or more surface zones of the cure volumes.

Abstract: An temperature control apparatus includes a temperature detecting element (50), a control circuit (60), and a thermoelectric unit (70). The temperature detecting element contacts to a first surface (82) of a predetermined target (800). The control circuit is electrically connected to the temperature detecting element. The thermoelectric unit is electrically connected to the control circuit, and contacts a second surface of the predetermined target. The temperature detecting element detects a temperature signal. The temperature signal is input into the control circuit. The control circuit changes the temperature signal into an electrical current signal, and the electrical current signal drives the thermoelectric unit to control the temperature of the predetermined target.

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. A polymer extrusion apparatus is disclosed utilizing a microwave energy for heating polymer feedstock material within the extruder tip and die unit just prior to formation of the extrudate product.

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.