Abstract: A control system is disclosed for controlling the speed at which an electric motor drives a conveyor to move products through a conveyor oven. The system includes a temperature sensor configured to sense the temperature of the conveyor oven and a speed adjustment input for selecting a speed setting corresponding to a desired amount of heat to be transferred to the products that move through the conveyor oven. The system also includes a controller having temperature data storage capacity and programmable logic capability.

Abstract: The present invention relates to a reflow furnace for heating a carried circuit module to perform reflow soldering. The reflow furnace has a nozzle 60 for performing an operation of spraying the inert gas on a soldering portion for the circuit module carried into the furnace while the nozzle is moved, maintaining high mounting reliability and high productivity, even if apertures of the carrying inlet and the carrying outlet are large.

Abstract: A method for adjusting process temperature measurements used to monitor zone conditions in a reflow oven selects values for exclusion from correlation with the predicted part temperature profile. During the thermal process, a plurality of process temperatures over intervals may be measured along the reflow oven. Over a time period for the thermal process, a measured process temperature of this plurality may be evaluated for the maximum and minimum extremities, from which a difference for that interval may be calculated. This difference may be compared to a qualifier for the plurality, and be excluded from part temperature prediction if the difference for the interval exceeds the qualifier. In an alternative embodiment, the maximum and/or minimum extremities from the plurality of process temperature measurements may be incorporated to produce a process temperature profile for correlation with the part temperature profile.

Abstract: A drier unit (10) for drying printed products has a plurality of drier rails (12), which comprise in each case a supporting body (14) manufactured from a hollow section (16). The clear outer contour of the cross-sectional area of the supporting bodies (14) is a rectangle. The drier rails (12) have in each case two resistance heating units (60) and additionally carry an infrared radiator (164).

Abstract: The quantity of supply heat of heated gas is controlled so that a supply heat quantity of the heated gas when no heat treatment of solder or the like is needed is made smaller than a supply heat quantity of the heated gas when heat treatment of solder or the like is needed, reducing consumption power when no heat treatment is needed for a board.

Abstract: A radiation unit for a fixation device for fixation of toner material on a printing stock surface for an electrophotographic printing machine, as well as a method for exposure and fixation of toner material on a printing stock surface. Exposure for fixation of toner material occurs essentially indirectly, i.e., the light emitted by the radiation unit is reflected at least once, so that high uniformity and homogeneity of the radiation, efficient energy utilization and avoidance of adverse changes on the printing stock are achieved. A high-energy density, low housing dimensions and independence of the radiation from the employed printing unit are achieved by the fact that the radiation wavelength lies essentially in the ultraviolet spectral range.

Abstract: A heater is secured to a cooling device in a reflow oven by a bracket comprising a first portion attached to a supporting structure, such as the cooling device itself, and a second portion extending over the heater. A member, preferably a screw, extends through the second portion of the bracket, against the heater. The first portion of the bracket is preferably attached to the cooling device by a screw. The bracket is preferably a stiff material such as aluminum. In addition, the duty cycle of a plurality of heaters on a plurality of respective cooling devices is controlled by a thermocouple on the cooling device closest to the exit of the reflow oven.

Abstract: Methods and systems for heat-treating a workpiece are disclosed. A first method involves increasing a temperature of the workpiece over a first time period to an intermediate temperature, and heating a surface of the workpiece to a desired temperature greater than the intermediate temperature, the heating commencing within less time following the first time period than the first time period. A second method involves pre-heating the workpiece from an initial temperature to an intermediate temperature, and heating a surface of the workpiece to a desired temperature greater than the intermediate temperature by an amount less than or equal to about one-fifth of a difference between the intermediate and initial temperatures. A third method involves irradiating a first side of the workpiece to pre-heat the workpiece to an intermediate temperature, and irradiating a second side of the workpiece to heat the second side to a desired temperature greater than the intermediate temperature.

Abstract: Devices including resealable film used to define the volume of one or more process chambers in a sample processing device are disclosed. The resealable films provide for controlled puncture, followed by resealing of the puncture site such that the process chamber remains substantially isolated from the surrounding environment. The present invention also provides methods of manufacturing sample processing devices using resealable films, as well as methods of transferring sample materials into or out of a process chamber through a resealable film.

Abstract: An oven for continuous curing of a succession of pre-formed elastomer articles, in particular tubes, which comprises a curing chamber at atmospheric pressure, communicating with the exterior by means of an intake aperture and an output aperture, a chain, which can advance the pre-formed articles along a closed path, extending through the curing chamber, and a unit for admission of water vapor into the curing chamber in order to keep it saturated with steam.

Abstract: A filtering apparatus for a reflow oven includes a contaminated-gas inlet for receiving contaminated gas from a reflow oven; a filtering device configured to filter the received contaminated gas; a returned gas outlet for returning filtered gas to the reflow oven; a gas removal arrangement for allowing gas to escape from the apparatus; and a control arrangement for controlling the rate of gas flow through the gas removal arrangement such that in use the flow rate of contaminated gas flowing from a hotter region of the reflow oven to a cooler region of the reflow oven is controlled.

Abstract: A modular heater for a conveyor oven has a flange that is removably attachable to the conveyor oven. The flange has an interior surface and an exterior surface. A heating element is attached to the interior surface of the flange. At least one contact is attached to the exterior surface of the flange. The contact is electrically connected to the heating element.

Abstract: A system and method for reflowing solder to interconnect a plurality of electronic components to a substrate is disclosed. The system includes an oven for preheating the substrate and the plurality of electronic components disposed thereon, a supplemental heat source disposed in the oven for providing additional heat energy to reflow the solder, and a pallet for supporting the substrate, wherein the supplemental heat source creates a stream of hot gas that flows transversely across the substrate.

Abstract: A heater is secured to a cooling device in a reflow oven by a bracket comprising a first portion attached to a supporting structure, such as the cooling device itself, and a second portion extending over the heater. A member, preferably a screw, extends through the second portion of the bracket, against the heater. The first portion of the bracket is preferably attached to the cooling device by a screw. The bracket is preferably a stiff material such as aluminum. In addition, the duty cycle of a plurality of heaters on a plurality of respective cooling devices is controlled by a thermocouple on the cooling device closest to the exit of the reflow oven.

Abstract: An apparatus for heating and cooling an article is provided. The apparatus comprises an enclosure having top, bottom, and side walls and an entrance and an exit. A first belt system comprising one or more belts extends from a loading position through a portion of the enclosure. The first belt system has a loading end and an unloading end. A second belt system comprising one or more belts extends from the unloading end of the first belt system to an unloading position. The second belt system has a loading end and an unloading end. The enclosure includes one or more heating sources positioned adjacent the first belt system for heating the first belt system.

Abstract: A device (100) for the thermal treatment of friction lining surfaces (19) (scorching) is characterized in that at least one infrared light source is placed in the heating station (10) for heating the friction lining surfaces. Short-wave infrared light of approximately 780 to 1400 nm with a maximum at 1200 nm is preferably used. A suction bell (11) and a fan (12) for removing the decomposition gas are above the heating station (10). The irradiation can take place in depression or in special chemical atmospheres. An infrared thermometer (20) supervises the temperature of the friction lining surfaces (19) and eventually causes an elimination (14) of parts. A cooling station (17) is following the heating station (10).

Abstract: The invention relates to a device for melting and conveying material such as plastic or metal. Said device comprises a conveying channel, which contains an admission opening for the material as well as a discharge opening for the at least partially melted material. The device also comprises heating devices that, between the admission opening and discharge opening, heat the conveying channel and/or the material, and comprises a slide that can move to-and-fro while conveying the material from the admission opening to the discharge opening. According to the invention, the conveying channel is provided with a tubular shape and with two walls and has an inner tube and an outer tube. The slide is provided as a sliding sleeve, which is placed between the inner tube and the outer tube, and is provided in two pieces. In addition, said slide comprises a closing sleeve for opening or closing the conveying channel and comprises a conveying sleeve that can be moved independent of the closing sleeve.

Abstract: The invention provides microwave continuous heating equipment that does not need redesigning even when workpiece size or length is changed, and that can perform efficient heat treatment by continuously radiating microwave power while preventing leakage of the microwave power. The microwave continuous heating equipment comprises a heating chamber 11, microwave absorbing chambers 13 and 14 connected to the front and rear ends, respectively, of the heating chamber, and transport equipment 15 for transporting workpieces thereon through the front-end microwave absorbing chamber 13, the heating chamber 11, and the rear-end microwave absorbing chamber 14 in the order state. Each of the microwave absorbing chambers 13 and 14 includes a workpiece transport path 13a, 14a having a meandering shape to prevent the microwave power from passing straight through an opening 13b, 14b at one end and an opening 13c, 14c, at the other end.

Abstract: Residue contaminates semiconductor devices during processing in a furnace. Residue contamination is prevented by removing the residue before it builds up to a point where it can contaminate semiconductor devices. Residue build-up is monitored using a residue build-up monitoring device mounted on the furnace exhaust stack. When residue build-up reaches a predetermined level a signal is generated by the residue build-up monitoring device notifying technicians that furnace cleaning is required.

Abstract: A control system is disclosed for controlling the speed at which an electric motor drives a conveyor to move products through a conveyor oven. The system includes a temperature sensor configured to sense the temperature of the conveyor oven and a speed adjustment input for selecting a speed setting corresponding to a desired amount of heat to be transferred to the products that move through the conveyor oven. The system also includes a controller having temperature data storage capacity and programmable logic capability.

Abstract: A modular heater for a conveyor oven has a flange that is removably attachable to the conveyor oven. The flange has an interior surface and an exterior surface. A heating element is attached to the interior surface of the flange. At least one contact is attached to the exterior surface of the flange. The contact is electrically connected to the heating element.

Abstract: A method of cleaning residue on surfaces in a reflow furnace includes introducing a solvent into the furnace chamber; reacting the solvent with the residue to form a product; and, removing the product from the furnace chamber. The solvent is gaseous, such as an etch gas. Also, the product of the reaction between the residue and the solvent can is gaseous. The gaseous product can then be exhausted from the reflow furnace. A reflow furnace for practicing the method is also disclosed.

Abstract: A facility for the thermal treatment of workpieces has a processing or heating chamber and at least one transport device, extending essentially completely through the processing or heating chamber, with which the workpieces to be treated can be transported through the processing or heating chamber. At least two processing or heating levels are hereby located on top of one another in the processing or heating chamber, with each processing or heating level having at least one separate transport device. This type of facility can preferably be used as a soldering facility, particularly a reflow soldering facility, or as a facility for the hardening or drying of plastics or adhesives.

Abstract: A sensor link is disclosed that simplifies connections between multiple temperature sensors positioned on a test board and a data logger that stores temperature information received from the temperature sensors while passing through the conveyor oven. In one embodiment, the sensor link includes multiple input ports for connecting to the temperature sensors. Conductors within the sensor link connect the multiple temperature sensors to an output port. In one aspect, a single cable extends between the sensor link and a data logger. The data logger stores temperature information received from the temperature sensors while the test board is passed through a conveyor oven. The sensor link can also have additional temperature sensors for providing additional temperature information about the conveyor oven. For example, an ambient temperature sensor may be positioned on the sensor link to provide the ambient temperature of the conveyor oven.

Abstract: The present invention provides a furnace which heat treats substrates. The furnace includes a heating section and working components. The heating section includes heating coils having spacers disposed within the heating coils where a mass of the heating coils and a mass of the spacers contributes to a mass of the heating section. The working components include a processing chamber and a transport mechanism. The processing chambers facilitates passage of a substrate through the heating section. The transport mechanism transports the substrate through the heating section and into the exit assembly. The heating section mass exceeds a combined mass of the processing chamber, the transport mechanism and the substrate within the heating section.

Abstract: A gettering system for a CAB furnace includes a nitrogen gas source to supply a nitrogen gas to a controlled atmosphere brazing (CAB) furnace and an active metal getter source disposed within the CAB furnace and being a sheet to remove oxygen and water vapor in the nitrogen gas, whereby heat exchangers are brazed during a controlled atmosphere brazing (CAB) process in the CAB furnace.

Abstract: A furnace for reflowing solder on a wafer having a heating chamber with an entrance, an exit, and top, bottom, side, and end walls formed of sheets of porous insulation. The furnace has a first belt, with first and second ends, extending from a loading position into the heating chamber. The furnace has a second belt, with first and second ends; the first end of the second belt is coupled to the second end of the first belt, the second belt extending through the heating chamber. The furnace has a third belt with first and second ends; the first end of the third belt is coupled to the second end of the second belt, the third belt extending through the exit of the heating chamber to an unloading position. The heating chamber also has infrared lamps positioned below the second belt, the infrared lamps heat the second belt, such that the second belt heats the wafer situated on the second belt.

Abstract: A furnace for reflowing solder on a wafer having a heating chamber with an entrance, an exit, and top, bottom, side, and end walls formed of sheets of porous insulation. The furnace has a first belt extending from a loading position into and through. the heating chamber. The furnace has a second belt coupled to the first belt, the second belt extending through the exit of the heating chamber to an unloading position. The heating chamber also has infrared lamps positioned below the first belt, the infrared lamps heat the first belt, such that the first belt heats the wafer situated on the first belt.

Abstract: Certain types of lithographic printing plates are activated by preheating while certain other types are post heated to harden the coating. A platen having a large mass compared to the mass of a printing plate is heated and maintained in the exact temperature range to which the printing plate is to be heated. A printing plate is brought into heat exchange contact with the platen for the period of time required to heat the printing plate to the temperature of the platen. The printing plate may be heated while resting in a fixed position on the platen or while the printing plate is carried over the platen by a continuous thin metal conveyor belt in intimate contact with both the platen and printing plate.

Abstract: A heating device for heating at least one advancing yarn in a texturing machine, wherein the body of the heating device defines an elongate heating channel. The heating channel accommodates an exchangeable support which mounts a plurality of yarn guides which are arranged inside the heating channel for forming a plurality of adjacent yarn guide tracks for guiding a plurality of yarns in such a manner that the yarns advance in a yarn advancing plane extending at a predetermined distance from the bottom wall of the heating channel.

Abstract: With reference to a device for heating a meltable material, such as plastic, upstream from equipment for further processing, such as casting or extrusion equipment, which device includes a conveyor channel for the material and a heating means located outside the conveyor channel, the heating means being designed as a radiant heating means and the thermal radiation being directed onto the conveyor channel, the invention proposes that the conveyor channel consist of a material which completely or partially absorbs the thermal radiation.

Abstract: This invention is a substrate thermal management system for efficient, rapid, controllable and uniform thermal management over a wide temperature range. The thermal management system integrates a thermal source, thermal sink and a thermal diffuser. According to the invention, a thermal diffuser is positioned stationary relative to the wafer surface and coupled to a thermal source and a thermal sink, which are also stationary relative to the wafer surface. The thermal source includes a plurality of zones adapted to provide differing amounts of heat and a controllable temperature field over a surface proximal to the thermal diffuser. The thermal sink comprises a heat-carrying media with a controllable temperature.

Abstract: A bag forming apparatus and method that features a single drive unit for operating both a drive roller and cross-cut mechanism with the drive motor assembly being internalized within the drive roller. The bag forming apparatus and method also features a easy slide in, slide out edge sealer and vent hole former inserts that are held by, and move with, the bag width adjustable driven rollers. The edge seal inserts feature a heating element that is compressed against the film material by an internal bias in the edge sealer insert. A heating element can also be used for the vent hole inserts. The heating element can be a plug-in heating unit easily inserted and removed from the remainder of the insert.

Abstract: In an automatic developing device, a preheating chamber comprises a heater and a circulation fan for adjusting the heating temperature for a photo polymer plate. A method for washing a roller in a desensitizing processing section is disclosed with a water supply bucket above the roller. A developing section of a processing device comprises a circulation pump and a spray pipe for smoothly substituting the developing liquid in the vicinity of a PS plate. By repeating supplying and stopping of electric power per every half cycle of an alternating current voltage based on the set operation time, the effective voltage is supplied when washing the roller after starting driving of the processing device. A liquid replenishing pattern depends on the configuration of a conveying path in the developing vessel in the processing device and a type of plates.

Abstract: Certain types of lithographic printing plates are activated by preheating while certain other types are post heated to harden the coating. A platen having a large mass compared to the mass of a printing plate is heated and maintained in the exact temperature range to which the printing plate is to be heated. A printing plate is brought into heat exchange contact with the platen for the period of time required to heat the printing plate to the temperature of the platen. The printing plate may be heated while resting in a fixed position on the platen or while the printing plate is carried over the platen by a continuous thin metal conveyor belt in intimate contact with both the platen and printing plate.

Abstract: An oven which comprises a housing, a conveyor belt for guiding products through the interior space of the housing and heating means for heating the products in the interior space of the housing using hot air and/or steam, which conveyor belt extends between an entrance and an exit of the housing and, between these two points, follows at least one path with turns which lie above one another. At least one air jet device is provided for generating a hot flow of air in jet form, which air jet device is positioned in such a manner with respect to at least one section of the conveyor belt that the hot flow of air in jet form impinges on the products situated on that section.

Abstract: A heating unit is provided with heating modules in a housing. Each module has a heating element. An electrical connection is attached to each heating module such that each heating module can be selectively energized to heat its heating element to a high temperature. Alternative embodiments and a related method of rapid heat processing are also disclosed.

Abstract: A compact reflow oven and cleaning apparatus combines in a unitary housing for both the reflow and cleaning function. This results in the saving of valuable floor space in the printed circuit board assembly areas. The unitary housing and control of temperatures in the reflow and cleaning areas facilitate the removal of contaminants before solidification of such contaminants.

Abstract: The invention relates to a method and an apparatus for drying or heat-treating substances or products at a pressure other than atmospheric pressure. The invention relates furthermore to banana chips dried by means of this method and banana powder produced therefrom. For drying or heat-treating, the products to be treated are loaded in transport receptacles which are subsequently charged via charging lock chambers into a treatment chamber and discharged therefrom via discharging lock chambers. For drying or heat treating, at least one microwave source is provided in the treatment chamber. Furthermore, an infrared heating source may be provided. After heat-treating or drying, a resting period may be scheduled. More particularly for this purpose, a vertically-oriented conveying system is provided in the treatment chamber when a longish resting period is involved. The transport receptacle is configured dished and my comprise nets on which the products are applied.

Abstract: A vertical toaster comprising a housing, heating elements, a food support and a drive. The heating elements are connected to the housing and comprise at least one calrod. The calrod comprises an electric wire surrounded by heat conductive electrical insulation and a metal cover. The food support is movably mounted to the housing for up and down motion. The drive is for moving the food support relative to the housing. The drive comprises a motor and a linkage between the motor and the food support for moving the food support both down and up such that food on the food support passes by the calrod. The calrod prevents an electrical shock to a user if the user accidentally contacts the calrod with an electrically conductive member.

Abstract: A reflow soldering apparatus using circulated heated gas to solder electronic components to a printed circuit board while transporting the printed circuit board mounted with electronic components on a conveyor chain. A plurality of gas passages for inflow of heated gas which have openings facing the circuit board, are provided at intervals in the transport direction of the conveyor chain. A first passage is provided for the flow of heated gas into the fan from an opening different from the opening for inflow and formed in the intermediate portion of the gas passage, and a second passage is provided for the flow of heated gas into the fan from openings formed on both ends of the gas passage.

Abstract: A radiation furnace assembly for use in heating parts. The radiation furnace assembly includes a muffle having a top side, a bottom side, and a first side wall. The muffle defines a chamber with a main heating portion and a first side heating portion. Disposed adjacent to the muffle are top and bottom heating elements. A first control device is used to adjust the temperature of at least one of the top and bottom heating elements thus controlling the temperature within the main heating portion of the chamber. A first side heating element is disposed adjacent to the first side wall of the muffle. A second control device is used to adjust the temperature of the first side heating element independently of the top and bottom heating elements to increase the temperature within the first side heating portion of the chamber relative to the main heating portion.

Abstract: A thermal assembly comprising at once a reading-writing-erasing capability. The present invention, accordingly, can realize important advantages of providing dual yet independent capabilities or functionalities for manifesting reading-writing-erasing on the nanometer scale. An illustrative such thermal assembly includes a thermal heater for writing on a media; a temperature sensor capable of monitoring thermal coupling between the sensor and the media; and, a heater element for heating the temperature sensor.

Abstract: An apparatus for heating a printed circuit board includes a conveyor (2) to transport a printed circuit board (1), and a heating chamber (3) through which the printed circuit board on the conveyor passes. The surrounding wall (9) of the heating chamber has vacuum layers (12) (13) for heat insulation, and a reinforcing rib (19) is fastened to the surrounding wall. A member for preventing collapse of the surrounding wall is inserted and secured in the vacuum layer in the surrounding wall. The member includes a stainless steel channel member (17) and a heat insulating plate (18) with a rectangular cross section. White cotton used as a member (20) for intercepting radiant heat is installed within the vacuum layer in the surrounding wall, and a radiant heat reflective layer (22) of aluminum foil, etc. is installed on the surface of the surrounding wall facing the heating chamber.

Abstract: A method for heating LowE glass panels in a tempering furnace (1) provided with rollers. LowE glass panels are carried on a conveyor constituted by rollers (2) into the tempering furnace and then the discussed glass panels are set in an oscillating motion within the tempering furnace for the duration of a heating cycle. This is followed by delivering the discussed glass panels into a tempering station (3). In the tempering furnace, the glass panels are heated by means of top and bottom radiation heating elements (4, 5), as well as by top and bottom convection heating elements (6, 7). In the early stage of a heating cycle the top glass surface is subjected to convection heating more powerful than that applied to the bottom surface and in the final stage of a heating cycle the bottom glass surface is subjected to convection heating more powerful than that applied to the top surface.

Abstract: A heating device for heating at least one advancing yarn in a texturing machine, wherein the body of the heating device defines an elongate heating channel. The heating channel accommodates an exchangeable support which mounts a plurality of yarn guides which are arranged inside the heating channel for forming a plurality of adjacent yarn guide tracks for guiding a plurality of yarns in such a manner that the yarns advance in a yarn advancing plane extending at a predetermined distance from the bottom wall of the heating channel.

Abstract: A monitor, and method, for monitoring temperatures at various specific times and locations in a test or manufacturing process, and for comparing those temperatures with reference profiles of optimum temperatures. Both the monitor and the method are especially well suited for checking the temperatures of various zones of reflow ovens used in mass soldering the connections of electronic components on circuit boards. The monitor is designed to distinguish clearly among respective temperatures at several points on tops and bottoms of circuit boards.

Abstract: Separate heating elements are embedded in a printed circuit board near integrated circuit (IC) packages or other parts mounted on the circuit board. Each heating element supplies heat to the part residing near it in response to an input voltage pulse. The heating elements are used to selectively melt solder or adhesives attaching the parts to the circuit board so that they can be easily removed or to temporarily melt solder or cure adhesive when the parts are mounted on the circuit board. The heating elements are also used to supply heat to IC packages for regulating their operating temperatures.

Abstract: A heating device for heating merchandise, especially printed boards, comprises a feeding device provided in front of a least one heating line in the transport direction of the merchandise and a discharge device provided behind the heating line in the transport direction, wherein a number of heating zones/devices and/or cooling zones/devices or the like are associated with the heating line.

Abstract: A rotating vacuum kiln for heat treating solid particulate material under vacuum conditions uses a rotating refractory metal cylindrical vessel with a cool inlet zone, hot intermediate zone, and cool exit zone, with a first series of inner radiation shields provided at the hot intermediate zone adjacent to the cool inlet zone and a second series of inner radiation shields provided at the hot intermediate zone adjacent the cool exit zone to protect those two zones from the high temperatures in the hot intermediate zone. Heat for the hot intermediate zone of the cylindrical vessel is provided indirectly by electrical resistance heaters that surround the vessel and outer radiation shields are provided about the heaters to direct heat to the cylindrical vessel.