Abstract: The present embodiments relate to a novel clamping assembly. More specifically, present embodiments relate to a clamping assembly for blind flange installation which provides an air tight seal for piping applications including, but not limited to, low pressure high-density polyethylene (HDPE) piping applications.

Abstract: The invention relates to a vacuum treatment chamber, comprising a coil arrangement for generating a magnetic field in the chamber, wherein the coil arrangement comprises at least one first coil section and a second coil section, wherein the first coil section and the second coil section are arranged adjacent to each other in cross-section and preferably in one plane, such that at least a partial section of the first coil substantially follows the course of a partial section of the second coil, wherein the spacing of the first partial section from the second partial section is at least one order of magnitude smaller than the cross-section of the optionally smaller coil section.

Abstract: Various embodiments of the invention include solutions for chamber-less thermal joining. A first aspect includes a system for performing a thermal joining of a joint space defined by a metallic part without an environmental chamber thereabout. The system may include an induction coil for heating an area adjacent to the joint space defined by the metallic part for the thermal joining of the joint space. The system may also include a gas lens for directing a shielding gas towards the joint space, and a valve system for controlling a flow of the shielding gas from the gas lens. A vacuum system creates a negative pressure in the metallic part to urge the shielding gas through the joint space during the thermal joining, thus allowing thermal joining of the metallic part without an environmental chamber thereabout.

Abstract: A reinforced electric induction gas sealed tunnel furnace is provided. The assembled tunnel furnace has a tunnel wall that has the exterior wall transversely surrounded by structural reinforcing elements that give the tunnel structural strength to withstand a pressure differential between the interior and exterior of the tunnel, for example, when the tunnel interior environment is a vacuum and the tunnel exterior environment is at atmospheric pressure. One or more inductors form the induction coil system for the N tunnel furnace and can be located external to the tunnel wall, but within or adjacent to, the structural reinforcing elements. In alternative arrangements the structural reinforcing elements may be oriented with the length of the tunnel and installed either within or external to the tunnel. The tunnel and the structural reinforcing elements are sufficiently electromagnetically transparent to not interfere with inductive heating of a strip passing through the tunnel.

Abstract: A system and method of restoring material properties is disclosed. A subject material may have one or more of its material properties restored by contacting a packed bed of a reactive material contained within a container with the subject material in which material properties are desired to be restored. The packed bed and the subject material may be heated to restore the material properties. The packed bed may be formed from boron, silicon or other appropriate materials. An inert atmosphere system may have an argon injection system or a helium injection system in communication with the container. A deoxidizing system may be in communication with the container for creating a vacuum within the container or injecting hydrogen into the container.

Abstract: A processing apparatus using an electromagnetic wave is provided to perform a heat treatment on a target object. The processing apparatus includes a metallic processing chamber; a loading/unloading opening provided in one end of the processing chamber; a closing body capable of closing and opening the loading/unloading opening; a holding unit loaded and unloaded into and from the inside of the processing chamber through the loading/unloading opening, holding target objects at a predetermined interval, the holding unit being made of a material allowing the electromagnetic wave to transmit therethrough; an electromagnetic wave supply unit for introducing the electromagnetic wave into the processing chamber; a gas introducing unit for introducing a gas into the processing chamber; and a gas exhaust unit for exhausting an atmosphere in the processing chamber.

Abstract: A method for processing solar cells comprising: providing a vertical furnace to receive an array of mutually spaced circular semiconductor wafers for integrated circuit processing; composing a process chamber loading configuration for solar cell substrates, wherein a size of the solar cell substrates that extends along a first surface to be processed is smaller than a corresponding size of the circular semiconductor wafers, such that multiple arrays of mutually spaced solar cell substrates can be accommodated in the process chamber, loading the solar cell substrates into the process chamber; subjecting the solar cell substrates to a process in the process chamber.

Abstract: Permanent magnets are arranged at the interior of a rotating body at uniform intervals. The device comprises: a rotating body which is rotated by a motor; a heat generation part, which is disposed in the vicinity of the rotating body, which includes an electroconductive material, and which is disposed within the magnetic fields of the permanent magnets; and a hot air capture plate, which is disposed in the vicinity of the heat generation part, and in which a plurality of hot air flow passage holes are provided, the rotating body being rotated by a rotating shaft, which is coupled to the motor. Furthermore, a thermocouple may be connected to the heat generation part, and the heat energy that would be dissipated to the outside air is converted to electrical energy by the thermocouple. Furthermore, the electromagnetic induction device is constituted such that a hot air capture plate, in which a plurality of hot air flow passage holes are provided, is disposed in the vicinity of the heat generation part.

Abstract: A substrate processing apparatus and a substrate processing method capable of supplying uniform electromagnetic wave power and performing uniform heating are provided. The substrate processing apparatus includes a process chamber for processing a wafer, a boat installed in the process chamber to hold the wafer, a gas introduction part installed below the wafer held by the boat for introducing a gas toward a back surface of the wafer, and a waveguide port installed over the wafer held by the boat for introducing an electromagnetic wave.

Abstract: A processing apparatus using an electromagnetic wave is provided to perform a heat treatment on a target object. The processing apparatus includes a metallic processing chamber; a loading/unloading opening provided in one end of the processing chamber; a closing body capable of closing and opening the loading/unloading opening; a holding unit loaded and unloaded into and from the inside of the processing chamber through the loading/unloading opening, holding target objects at a predetermined interval, the holding unit being made of a material allowing the electromagnetic wave to transmit therethrough; an electromagnetic wave supply unit for introducing the electromagnetic wave into the processing chamber; a gas introducing unit for introducing a gas into the processing chamber; and a gas exhaust unit for exhausting an atmosphere in the processing chamber.

Abstract: A cooking or food warming appliance having a heated heat sink plate situated in a vacuum environment within an outer shell. A food vessel intimately engages the heat sink plate along a food contacting surface thereof by virtue of the vacuum. The vacuum eliminates air gaps between the food contacting surface of the food vessel and the heat sink plate so as to provide instantaneous and uniform heating of the food vessel. The vacuum environment also provides thermal insulation for the heat sink plate whereby heat loss by convection is virtually eliminated.

Abstract: A method is described for batchwise heat treatment of goods to be annealed which are heated in a heating chamber after scavenging air with a scavenging gas under protective gas to a predetermined treatment temperature, with the protective gas being conveyed through the heating chamber depending on the occurrence of impurities in different quantities. In order to enable the economic use of protective gas, it is proposed that the protective gas which is withdrawn from the heating chamber after the main occurrence of impurities and which is loaded with a residual quantity of impurities is conveyed, optionally after intermediate storage, into the heating chamber during the main occurrence of impurities of a subsequent batch before non-loaded protective gas is introduced into the heating chamber.

Abstract: An induction furnace capable of drawing large diameter preforms of up to 130 mm is described. The induction furnace has top and bottom chimneys surrounding the entire preform during operation of the furnace with an inert conditioning gas which is introduced into the top chimney and flows downward through the furnace body and bottom chimney without significant turbulence. A distributor ring inside the top chimney redirects flow from a circumferential direction to a downward direction. The top chimney also includes a resilient seal to releasably hold the top of the preform. The bottom chimney has a smoothly decreasing cross-sectional area preventing turbulence at the furnace exit. The furnace insulation is preferably a rigid self-supporting graphite cylinder. A method of drawing large diameter preforms either to an optical fiber or to a preform of smaller diameter using such a furnace is also described.

Abstract: A substrate processing apparatus includes a chamber having a reaction space therein, a substrate seating member disposed in the reaction space of the chamber to seat a substrate thereon, an induction heating unit to heat the substrate seating member, and at least one altitude adjusting unit to selectively adjust the altitude of the induction heating unit at the outside of the chamber according to a temperature adjusting region of the substrate seating member. Therefore, it is possible to constantly control a temperature of the substrate seating member by adjusting the distance length between the substrate seating member and the induction heating unit at the outside of the chamber.

Abstract: An induction heating apparatus comprises a substantially gas-tight enclosure through which a workpiece passes. An induction means surrounds the exterior of the enclosure and an ac current flow though the induction means establishes a magnetic field that couples with the workpiece to inductively heat the workpiece. The gas-tight enclosure may comprise a non-electrically conductive material to permit passage of the magnetic field for coupling with the workpiece and an electromagnetic shield material for restricting the regions of the magnetic field. In alternate examples an electromagnetic shunt located around the induction means is used in place of, or in combination with, the electromagnetic shield material to restrict the magnetic field in a direction towards the workpiece.

Abstract: An induction brazing and quenching apparatus and related method of coupling components together.

Abstract: An inductive heating element includes a substrate and an insulating layer covering the substrate. The substrate contains a carbonaceous material such as glassy carbon. The inductive heating element effectively exchanges heat with a flowing gas to be heated and thereby efficiently heat the gas.

Abstract: The disclosed isostat for treating materials comprises a hermetic container connected to a gas supply means, an induction heater and an open-top working chamber that are arranged therein, the chamber being mounted above the heater and designed for placing the article to be treated and the working medium therein. The working chamber is made in the form of a vessel with double walls and a bottom therebetween, the inner wall of the vessel defines a reaction chamber, the bottom of which is located above the heater higher than the bottom between the walls of the vessel, the bottom between the walls is located lower than the exposure zone of the heater, and the isostat is provided with a heat-insulating chamber, the wall of which is located in the space between the walls of the vessel with a gap between the open lower butt of the heat-insulating chamber and the bottom between the walls of the vessel, and with a gap between the closed butt thereof and the upper open butt of the reaction chamber.

Abstract: Nanopowder synthesis systems in which a pulsed magnetic field is applied to electrodes of precursor material, in close proximity to an electrical discharge arc that is formed between the electrodes, to attain increased yields of nanopowder. A magnet insert of a coating precursor material is used to coat the nanopowder and thereby reduce nanoparticle agglomeration.

Abstract: A heating apparatus which is installed in a low pressure CVD system or annealing equipment for use in semiconductor integrated circuit manufacturing processes for heat-treating wafers on which IC's are to be formed, wherein wafers are uniformly heated, the temperature of wafers is rapidly raised and lowered, and wafers are processed in high volume, wherein the apparatus comprises a cylindrical body made of glass-like carbon placed inside a reactor, and a high-frequency induction coil which is placed outside the reactor and is for causing the cylindrical body made of glass-like carbon to produce heat and thereby heating wafers in the reactor.

Abstract: The invention relates to a method of treatment, in particular cleaning and/or heating, for a metal substrate (1) fed in a substantially continuous manner through a vacuum chamber (3), having a treatment zone in which an electric discharge (10), i.e. a plasma, and a magnetic field are produced in a gas maintained at a pressure below atmospheric pressure between at least the substrate (1), acting as an electrode, and at least one counter-electrode (9) to enable the substrate (1) to be bombarded by the ions produced in the electric discharge (10). This method is characterised in that a confining magnetic induction field is produced entirely around the substrate (1) in the treatment zone so that the electric discharge (10) is also confined entirely around the substrate (1) inside this treatment zone by the confinement of electrons released in the electric discharge (10).

Abstract: A system and method inductively heats and stress relieves a weld joint area having a stress induced zone. A susceptor assembly is positioned over the stress induced zone. The susceptor assembly includes susceptor sheets manufactured to operate at different, preselected Curie temperatures. A housing is mounted over the susceptor assembly including an induction coil positioned adjacent to the susceptor assembly. An alternating electric current is applied to the induction coil. The alternating electric current causes the induction coil to generate a plurality of magnetic flux lines. The invention provides the advantage that the magnetic flux lines passing through the susceptor assembly heat the susceptor assembly providing localized and controlled temperature heat to the weld joint area to stress relieve the stress induced zone.

Abstract: A high-frequency induction-heating device preferably comprises an introduction part which introduces a gas to be treated; a pyrolysis part which pyrolyzes the gas to be treated; an induction heating coil provided around the outer circumference of the pyrolysis part so as to surround and heat the pyrolysis part, and an exhaust part which exhausts the gas having been decomposed in the pyrolysis part; wherein the pyrolysis part comprises a cylindrical body both ends of which are sealed, slits which communicate the interior with the exterior of the cylindrical body provided on the outer surface of the cylindrical body, and a communication pores to be communicated with an introduction tube which introduces the gas to be treated into the interior of the cylindrical body.

Abstract: Gastight and vacuum-tight chamber intended to be used in a device for heating a product advancing inside the chamber by electromagnetic induction, characterized in that it comprises a gastight and vacuum-tight sheath made of an electrically insulating, gastight and vacuum-tight material, the inner faces of the sheath being protected by a heat shield consisting of a matrix of tiles made of a thermally insulating material and of a plurality of tubes cooled by the flow of a fluid, the latter being trapped in the matrix of tiles.

Abstract: The invention provides a convection type brazing apparatus for metal workpieces such as aluminum, copper, iron and so forth that enables uniform heating of the metal workpieces to prevent deformation of the workpieces and can shorten a heating time to achieve a higher operation efficiency. A heating medium gas heated by a tube heater 36 in a thermal medium gas heating chamber 45 is forwarded by a fan 37 to manifolds 41A and 41B located on both left and right sides, to be blown through a multitude of nozzles 43 toward workpieces W to which a brazing material and flux have been applied in advance. Once the workpieces temperature has reached a predetermined temperature for brazing, a switching valve located in an upper duct 48 is activated so that the heating medium gas is intermittently blown to the workpieces. As a result, a temperature slope of the workpieces is minimized and uniform brazing can be performed.

Abstract: An apparatus for quenching a metallic material such as steel is provided. The apparatus includes a heating furnace, a liquid metal sodium chamber, a gas cooling chamber, and a liquid metal sodium removal chamber. The heating furnace heats the metallic material to more than 700° C. The liquid metal sodium chamber includes liquid metal sodium, and the metallic material is cooled approximately to between 100° C. and 250° C. The inert gas chamber includes inert gas such as nitrogen or argon, and the metallic material is cooled approximately to room temperature. In the liquid metal sodium removal chamber, the liquid metal sodium remaining on the metallic materials is removed by using vapor, mist, and water.

Abstract: A device for degassing and brazing preassembled vacuum interrupters in only one brazing operation includes a base plate having at least one brazing site which features an opening of the base plate for connecting a suction pump and a bell which covers the opening and can be put on the base plate and lifted off. The bell is surrounded on the outside by an excitation coil to which medium- or high-frequency energy can be applied. The device includes a medium- or high-frequency generator for the excitation coil and with a cylindrical tubular susceptor arranged inside the bell for receiving at least one preassembled vacuum interrupter.

Abstract: Described is a system designed to warm the transfer chamber used in vacuum equipment in the manufacture of integrated circuits during maintenance. The system detects when the transfer chamber lid is opened and the chamber is exposed to the atmosphere. This activates the heater normally used to bake out the chamber. A temperature sensor is used to keep the temperature below a set point. By warming the chamber, moisture build-up on the inside of the chamber during maintenance is minimized, thereby reducing out gassing and time required to bring the chamber back to its base vacuum pressure when returned to production.

Abstract: An induction heating system that can be used to braze metals and that overcomes many of the disadvantages of conventional brazing systems. The induction heating system improves quality and lowers production cost for many brazing requirements. The system is designed to quickly, accurately and cost effectively heat individual parts, and to replace flame brazing procedures and batch vacuum furnaces. Because the system can braze parts in an inert atmosphere or in no atmosphere (e.g., in a vacuum), no flux or acid cleaning bath is necessary and oxidation on the part is eliminated. Further, by including a gas quenching feature, the system prevents the annealing of parts and produces high quality brazed parts that meet desired hardness specifications.

Abstract: A method of processing medical waste which includes the steps of continuously feeding medical waste into a tube and heating the medical waste passing through the tube with electromagnetic radiation so as to heat and disinfect the medical waste.

Abstract: An apparatus for quenching a metallic material such as steel is provided. The apparatus includes a heating furnace, a liquid metal sodium chamber, a gas cooling chamber, and a liquid metal sodium removal chamber. The heating furnace heats the metallic material to more than 700° C. The liquid metal sodium chamber includes liquid metal sodium, and the metallic material is cooled approximately to between 100° C. and 250° C. The inert gas chamber includes inert gas such as nitrogen or argon, and the metallic material is cooled approximately to room temperature. In the liquid metal sodium removal chamber, the liquid metal sodium remaining on the metallic materials is removed by using vapor, mist, and water.

Abstract: An environmentally controlled heating system for heating metal alloy billets wherein a trolley system carries the billets through the chambers of the induction heating system in crucibles that are pushed or pulled by actuators. The billets enter the system through a load-chamber and travel through a main chamber to a heating area where the loaded crucibles pass through a series of induction heating coils. The heated billets leave the heating area through a dump-chamber where they are delivered to a forming system. The empty crucibles reenter the main chamber and travel back to the loading area to receive another billet. The heating system is controlled through a computing device for monitoring and controlling the system, preferably a programmable logic controller. A vacuum system evacuates air from the chambers, and an inert gas system back-fills the chambers with an inert gas. A gettering system continually cleans the inert gas.

Abstract: According to a method of melting a bump improved to omit processes of flux application, reflow, cleaning and drying, a bump formed on a substrate is heated and melted by electromagnetic induction using an induction heating coil in ambient of low oxygen concentration.

Abstract: A gas shielding apparatus comprising a main gas jacket having induction heating means, and front gas jacket and rear gas jacket integrally disposed at supply side and discharge side of a member to be bonded or a member to be heated of the main gas jacket, wherein gas shielding is achieved by setting the internal pressure of the main gas jacket lower than the internal pressure of the front gas jacket and rear gas jacket, so that the holding time of the shielding gas jacket in the main gas jacket becomes long.

Abstract: A magnetic vacuum oven mounted in a two piece steel magnet core. The two sections of the magnet slide apart on rails to provide easy access to the interior of the machine for maintenance and repair. The magnet core includes a "safe door" that is mounted on an articulated hinge or other hinge mechanism. The safe door provides direct access for product introduction to and removal from a central chamber surrounded by an applied magnetic field. Two electromagnet elements are mounted around the central chamber. One of the electromagnet elements is mounted in the front section of the housing, and one of the electromagnet elements is mounted in the rear section. The coils are separated by a small air gap to allow vacuum evacuation of the interior of the chamber. The magnetic coils are generally rectangular, and are water cooled to maintain a stable temperature when they are drawing power in operation.

Abstract: A heat retentive server, comprising a central portion comprising a heat storage member formed of a material which is preferably susceptible to being heated by induction, is provided with one or more valves which are normally in closed positions, and are capable of opening to vent excess pressure in the central portion. In one preferred embodiment, a valve is placed so as to allow communication between the central portion and a different interior region of the server. In another embodiment, a valve is placed so as to allow communication between the central portion and the exterior of the server. In another embodiment, a server is provided with at least one valve of each type.

Abstract: An improved induction heated reactor apparatus involving a reaction zone with inlet and outlet and containing an array of electrically conductive catalyst entities (susceptor entities) comprising pellets, rings, or rods containing a core externally coated with a substantially uniform and complete catalyst metal (e.g., platinum, platinum-iridium alloy, or platinum-rhodium alloy) wrap, coating, or surface impregnated, or containing the catalyst metal as a foam which are inductively heated to produce chemical product from a catalytic reaction. Such an apparatus is particularly useful in the catalytic generation of HCN at elevated temperatures.

Abstract: A heating module for use in steel processing is provided. The module includes one or more gas heating zones and one or more induction heating coils intermixed among the gas heating zones. The modules are used to heat steel slabs to a consistent temperature throughout. Generally, the induction coils are used to increase the temperature of the slab, while the gas heating zones function to hold the slab at the increases temperature and to allow the heat to soak into the interior of the slab. The gas heating zones are generally lined with refractory material and include sufficient rollers to carry the steel slabs through the heating modules. The rollers are positioned in such a manner that the majority of the surface area of the roller is not within the interior of the gas heating zone at any one time. At least a segment of the floor of the gas heating zone is pivotable such that debris can be easily removed from the heating zone and such that the interior of the heating zone is easily accessed.

Abstract: A device for induction heating a continuously moving metal product in a protective atmosphere includes an induction system. A non-metallic and gas-tight enclosure is disposed around the moving product, between the product and the induction system. Uses include an installation for continuous heat treatment of a moving product, such as a steel strip or wire, in a protective atmosphere, between a fast cooling chamber and an intermediate temperature maintaining chamber.

Abstract: The fiber-drawing furnace includes a graphite tube positioned vertically, heated by induction, and subjected internally to an inert atmosphere, said tube internally defining a fiber-drawing chamber. In the furnace said graphite tube is a double-walled tube having an inner wall and an outer wall, its inner wall is porous and separates the fiber-drawing chamber from a peripheral chamber defined between the walls and subjected to a flow of inert gas which diffuses through said porous wall into said fiber-drawing chamber. Application to drawing down an optical-fiber preform.

Abstract: An induction heating generator is described for braze-welding metallic pipes with a continuous process under a controlled atmosphere, comprising at least one heating inductor composed of two half-inductors in series whose winding directions for their windings are one opposite to the other. The generator is further equipped with a quartz tube placed inside the inductors and in which the metallic pipes pass together with the controlled atmosphere gas. The generator further includes at least one removable sealing insert to join two contiguous inductors. For every medium- and/or high-frequency section of the generator, a load matching system is finally provided to compensate for external diameter variations of the pipes, the system being interlacedly handled by a programmable controller (P.L.C.).

Abstract: A method of bonding two or more sintered compacts of tungsten heavy alloys. The method includes the steps of providing two or more sintered compacts of tungsten heavy alloy powder and then positioning the sintered compacts in adjacent alignment in a furnace chamber. A localized induction field is applied only at the juncture of the sintered compacts to bond the sintered compacts and produce a monolithic assembly of sintered compacts having a bond strength substantially equal to the strength of the sintered compacts.

Abstract: The invention comprises a continuous hot rolling method in which a rear end portion of a preceding metal block and a fore end portion of a succeeding metal block are cut and the metal blocks are joined to each other by heating and pressing followed by a finish rolling. A region of each metal block is restrained from a clamping position to the end portion thereof in order to prevent a change in level of the metal blocks in heating and pressing the piece. The end portions of the metal blocks can be thus prevented from deformation.

Abstract: A cooking utensil with improved heat retention includes an inner pot received within an outer pot and separated in a closely spaced-apart relationship to form a volume or chamber therebetween. The chamber is evacuated and sealed with foil leaves at the upper edges of the inner and outer pot. The vacuum created between the inner and outer pot, along with the minimum of thermal contact between the inner and outer pot, and the reduced radiative heat transfer due to low emissivity coatings on the inner and outer pot, provide for a highly insulated cooking utensil. Any combination of a plurality of mechanisms for selectively disabling and re-enabling the insulating properties of the pot are provided within the chamber.

Abstract: Infectious medical materials is rendered innocuous by heating heterogeneous medical materials having wet and dry portions with a radio frequency electric field. The medical materials are exposed to the radio frequency electric field in order to heat the medical waste. The medical waste may include sorted medical or veterinary waste which after heat treatment may be shredded and recycled.

Abstract: A roll mill having a pair of thick, solid, heated rollers made of refractory material to heat materials to be mixed therebetween to a temperature in the range of approximately 500 degrees C. to 4000 degrees C.

Abstract: In a fluidized bed reactor for preparing a metal nitride by feeding metal powder and a non-oxidizing gas containing N.sub.2 or NH.sub.3 into a reaction tube (1) to form a fluidized bed (2) therein and heating the fluidized bed for nitriding the metal powder, an envelope (11) encloses the reaction tube (1) for preventing the surrounding air from entering the reaction tube. A heater (9) is disposed outside the envelope (11) for heating the fluidized bed (2) to 1,200.degree. C. or higher. The envelope prevents penetration of the surrounding air into the reaction tube and also prevents deterioration of the heater and surrounding components by scattering of metal fines. The reactor ensures safe operation to prepare metal nitride powder of high purity on an industrial scale.

Abstract: Apparatus and method of induction heating wherein the heating operation is conducted in a low oxygen-containing atmosphere by the introduction of an inert gas alone or in combination with an oxygen-reacting gas through the ends of the induction coil housing or through removable covers enclosing the spaces between spaced apart housings.

Abstract: A method for removing one or more contaminations from a bulk material, the bulk material being fed into a treating chamber (1), exposed therein to a temperature treatment and then discharged. According to the invention, the bulk material is exposed to a vacuum treatment during temperature treatment. An apparatus according to the invention for the implementation of the method comprises a treating chamber (1) for treating contaminated bulk material therein, feeding means (2) for feeding the bulk material to the treating chamber (1), discharging means (9) for discharging the bulk material from the treating chamber and heating means (19) for heating the bulk material in the treating chamber. The apparatus also includes a vacuum forming means (16) for forming a vacuum in the treating chamber.

Abstract: The present system is directed to both a method and apparatus for manufacture of teeth for use in drill bits. The desired tooth is formed by a hard carbide, a protective disc placed on the end of the support, the joinder being accomplished by a braze metal layer. The process contemplates positioning the disc in a matching receptacle within the head of a molding apparatus wherein the head and cavity of the head are exposed to the terminus of several coolant flow lines through the head so that the disc is brought into contact with flowing coolant. The fluid coolant is delivered by a compressor at elevated pressure and is a flow of cooled gas after dehydration. Rapid flow of heat into cooled support at the base prevent deterioration of the diamond layer while allowing use of higher temperature braze metals.