Abstract: The invention relates to a method and an installation for processing thermoplastic synthetic materials. According to the invention, the melt strands or the like are displaced in oscillation or pulsation in order to indent or penetrate the joint lines between at least two injection strands.

Abstract: The present invention is a method of forming a compressed product. The method includes introducing a material into a press that is oscillating between a compression phase and a release phase. The material has a compression recovery response time when compressed and released. The compressed product is formed by repeatedly compressing the material during the compression phase and releasing the material during the release phase.

Abstract: The present invention is a method of forming a compressed product. The method includes introducing a material into a press. The material has a flow direction through the press. The press is arranged to have at least one platen oscillating between a compression phase and a release phase. The at least one platen is configured to impart a compressive force onto the material during the compression phase such that the force is applied initially at an acute compression vector angle relative to the material flow direction. As a function of the angled compressive force, the material is transported a distance through the press and then released during the release phase.

Abstract: The invention relates to the setting of poured concrete and the need to avoid air pockets and voids within the setting slurry. At least one reinforcing rod, and preferably a grid of rods, is embedded in the poured concrete. The setting slurry is vibrated by vibrating the rod or grid. A vibrator receives the protruding end of the rod and is vibrated to vibrate the rod.

Abstract: The invention concerns a product and the relative manufacturing process, said product, including at least a precast support (2) of expanded material and at least a layer (3) of agglomerated stone material in form of granulates bound by a binding phase, over at least one surface of said expanded support (2). According to suitability, the product (1) is made by a sandwich structure with an intermediate layer of expanded material and two surface coatings of stone material. The product (1) can also have a complex or modular shape, from which it is possible to cut and eventually to work finished pieces of predetermined dimensions. The main advantage of the invention consists in obtaining a finished product (1, 10, 100) lighter than a product made of agglomerated stones homogeneous in the thickness.

Abstract: An molding apparatus useful for molding polymer compositions includes a substrate; a first insulating layer having an electrical resistivity of at least about 1010 ohm-centimeters and thermal conductivity of about 0.2 to about 5 watts/(meter-kelvin); a heating element; a second insulating layer having an electrical resistivity of at least about 1010 ohm-centimeters and a thermal conductivity of at least about 5 watts/(meter-kelvin); and a first molding layer having a specific heat capacity of about 100 to about 2,500 joules/(kilogram-kelvin), and optionally, a second molding layer. The apparatus provides rapid heating and cooling of the mold surface. The apparatus may be employed for rapidly molding articles having desirable surface characteristics.

Abstract: The invention relates to a simplified production process with which it is possible to obtain carbon blocks, in particular anodes intended for aluminium production using the Hall-Héroult electrolysis process, which have high thermal shock resistance. This process comprises a grain size distribution adjustment operation of a carbon aggregate which includes: a) separating an initial ungraded carbon aggregate AC into a first fraction F1 made up of grains whose sizes are smaller than X, and into a second fraction F2 made up of grains whose sizes are X or greater, X lying between 0.2 and 2 mm; b) crushing B1 the first fraction F1 and part P1 of the second fraction F2 such as to obtain a powder F comprising a controlled proportion of ultra-fine grains; c) mixing the remaining part P2 of fraction F2 and said powder F in proportions with which it is possible to obtain crude carbon blocks whose so-called “Gr/S” ratio between the proportion PGr of grains larger than 0.

Abstract: A welding structure of three members comprises a first synthetic resin member having an opening and a flange formed around the opening, a second synthetic resin member having an opening and a flange formed around the opening, and a third member having an edge portion, the first, second, and third members being to be integrally joined by vibration welding in a state where the edge portion of the third member is held between the flanges of the first and second members so that contact portions of each flange and the edge portion are welded together. In a state prior to the vibration welding, at least one of the first and second members is formed with a circumferential protrusion, the edge portion of the third member is held between the flanges of the first and second members so that the third member is in contact with the first and second members through the protrusion, and the first and second members are assembled with a predetermined clearance between joining portions constructed of parts of the flanges.

Abstract: Cure and consolidation of a viscous thermoplastic resin, especially one that softens and melts at a high temperature, is improved by assisting autoclave pressurized momentum transport for compaction of the composite using high frequency, low amplitude acoustic vibration within the resin. The vibration induces shear thinning in the resin which promotes resin flow, achieves filling or collapse of voids, and assists consolidation of the composite preform.

Abstract: This invention teaches methods of making a hermetic terminal assembly comprising the steps of: inserting temporary stops, shims and jigs on the bottom face of a terminal assembly thereby blocking assembly core open passageways; mounting the terminal assembly inside a vacuum chamber using a temporary assembly perimeter seal and flange or threaded assembly interfaces; mixing a seal admixture and hardener in a mixer conveyor to form a polymer seal material; conveying the polymer seal material into a polymer reservoir; feeding the polymer seal material from the reservoir through a polymer outlet valve and at least one polymer outlet tube into the terminal assembly core thereby filling interstitial spaces in the core adjacent to service conduits, temporary stop, and the terminal assembly casing; drying the polymer seal material at room temperature thereby hermetically sealing the core of the terminal assembly; removing the terminal assembly from the vacuum chamber, and; removing the temporary stops, shims.

Abstract: The invention provides a simple, energy efficient and direct method of producing synthetic lightweight aggregate, in spheroidal, other regular shapes or even in crushed form, in a wide range of defined sizes and target densities by preparing appropriately batched and mixed slurry mixes of cement, sand, waste materials like fly ash and/or stone dust, additives, water and preformed stable foam, transferring and then casting the slurry mix under ambient conditions, into desired sized aggregate in uniquely invented battery moulds having multiple interconnected cells, where allowing the casting to harden under ambient conditions for some time and then demoulding provides the desired quality aggregate granules.

Abstract: A method of molding an elastomeric article comprises: putting an elastomeric article in a mold; softening the elastomeric article in the mold by heating the elastomeric article; pressing the elastomeric article against the mold by pressurizing an inside of the elastomeric article by letting a fluid therein; and changing the pressure of said fluid in a short cycle so as to beat the elastomeric article against the mold repeatedly.

Abstract: A method of finishing concrete using a vibrating tool to consolidate a “dry shake” aggregate into the upper layer of the concrete. The use of the vibrating tool causes moisture within the concrete mass to migrate into the surface layer where the moisture may hydrate the aggregates in the dry shake mixture. The ability to cause upward migration of water in the concrete mass provides a larger window of finishability for the concrete. The vibrations also provide thorough consolidation of aggregates in the upper layer of the concrete mass helping to prevent delamination.

Abstract: The method of producing slabs made of granulated stone and/or sand bound with a hardenable resin by compaction under vacuum and subsequent hardening in which before the vibratory compaction the mixture is spread to a uniform thickness on a support, the support being protected by highly resilient sheet material. A lower sheet material has a shaped configuration comprising a flat base and a peripheral frame projecting from the flat base for a predetermined height so as to define a seat of dimension corresponding in plan to those of the slab to be produced. The peripheral frame having a height which is lower by a predetermined amount than that of the final slab produced.

Abstract: In a method of joining a solidifiable liquid polymeric material to a solid material to produce a solid article, the solid material is contacted with the liquid polymeric material at an interface. Ultrasonic energy is applied so that the energy reaches the interface between the contacting solid material and liquid polymeric material. A joint is formed at the interface by allowing or causing the liquid polymeric material to solidify, to produce a solid article comprising the solidified polymeric material joined to the solid material.

Abstract: An apparatus and method for shaping at least a portion of a medical balloon comprise a balloon shaping device capable of applying a radial inward force to at least a portion of the medical balloon and at least one vibratory device capable of applying vibratory energy to the at least a portion of the medical balloon.

Abstract: A method for recycling and reusing corrugated paper comprising the steps of: pulverizing the waste corrugated paper into a plurality of scraps; adding viscose to mix with the scraps; agitating viscose and the scraps so that a surface of each scrap is stuck with a thin layer of viscose; filling the scraps with viscose into a model; compressing the scraps for solidifying the scraps so as to form a shaped product; and drying the shaped product. The size of the corrugated paper is less than 10 cm. The viscose is water-solvable viscose. The compressing pressure is larger than 15 tons. In agitating step, recycling short fiber for waste paper can be added.

Abstract: A method of installing a refractory lining in a coreless or channel electric induction furnace. For installation of a refractory lining in a furnace wall, the method comprises the steps of providing a dry refractory material between a liner form placed within the furnace and a furnace wall, placing at least one variable frequency/amplitude electric vibrator in operational communication with an element selected from a structural member of the furnace, the liner form, and a vibrator rig placed within the furnace, inducing flow of the dry refractory material by operating at least one variable frequency/amplitude vibrator in a first operational mode having a high amplitude, low frequency vibration, and compacting the dry refractory material by operating at least one variable frequency/amplitude vibrator in a second operational mode having low amplitude, high frequency vibration after inducing flow of the dry refractory material.

Abstract: A vibratory apparatus and method for agglomerating chopped bundles of wet fiberglass strands into uniform segments includes a container having a curved inner surface disposed about a generally horizontal axis where the container is mounted on a plurality of springs. The chopped bundles of wet fiberglass strands to be agglomerated are placed onto the curved inner surface at an input end of the container. A vibratory force is produced to cause the chopped bundles of wet fiberglass strands to be moved from the input end toward an output end of the container. The vibratory force causes the chopped bundles of wet fiberglass strands to be directed in a rising and falling path of rolling movement within the container. As a result of the rolling movement of the chopped bundles within the container which is produced by the vibratory force, the chopped bundles of wet fiberglass strands are converted into uniform segments by reason of agglomeration of the wet fiberglass strands.

Abstract: The invention relates to a method and an installation for processing thermoplastic synthetic materials. According to the invention, the melt strands or the like are displaced in oscillation or pulsation in order to indent or penetrate the joint lines between at least two injection strands.

Abstract: A new system and method for making agglomerates of chopped glass fiber strand segments is disclosed as are the agglomerates produced. The agglomerates, made by feeding wet chopped fiber strand segments into a wave chamber having a vibrating curved surface that produces a wave-like flow pattern in the segments and agglomerates, have a substantially higher bulk density and greatly improved flow characteristics than conventional chopped strand reinforcements. The wet agglomerates are usually dried in any conventional dryer.

Abstract: The present invention relates to the step of plasticizing a thermoplastic resin material by rotatably driving a screw (20). Also included in the method is the step of injecting an inert gas into a screw cylinder (1) to permeate the melted resin and injecting the melted resin into a mold by driving the screw (20) in the direction of injection. Here, the inert gas has a pressure, at least in pressure, equal to or greater than a supercritical pressure or is under a supercritical state. To provide a thermoplastic resin foam by the method, electric servomotors (31, 32) are employed to drive the screw (20). After the step of plasticizing the resin material has been completed, brakes are applied to the electric servomotors (31, 32) to prevent the screw (20) from retreating. Alternatively, even after the step of plasticizing the resin material has been completed, the screw (20) is driven at low speeds in the direction of plasticization until immediately before the step of injecting the melted resin is initiated.

Abstract: Apparatus and method for carrying out compaction operations on molded bodies that consist of granular materials and are placed on pallets, the compaction being achieved by impact of a vibrating table on the underside of the pallet. The vibrating table, together with a spring system forms a mass-spring system, which acts as a vibrator capable of oscillation that is excited by an excitation device to produce forced vibrations. The spring system, together with the system mass, is designed to develop at least one individual frequency within the range of the compaction frequency, whereby it is also possible to adjust the individual frequency gradually or continuously. This, together with the fact that the excitation frequency can be adjusted, allows the vibrator to be operated partially or completely in resonance mode over the whole frequency range of the compaction.

Abstract: The present invention provides a producing technique of round polished concrete aggregate in which water-absorption characteristics are suppressed as low as possible while rounding an outer shape of the round polished concrete aggregate, and when the round polished concrete aggregate is used as concrete aggregate, a percentage of absolute volume can be enhanced and a unit water volume can be reduced.

Abstract: A method for underfilling and encapsulating flip-chip configured semiconductor devices mounted on a carrier substrate using stereolithography (STL) to form, in situ, at least semisolid dam structures of photopolymeric material about the devices to entrap liquid, unpolymerized resin between the devices and substrate. Prior to the STL process, the carrier substrate and mounted devices are immersed in the liquid polymeric resin, optionally with vibratory energy, to purge contaminants from between the device and substrate, and to fill spaces between the semiconductor devices and carrier substrate with the liquid resin.

Abstract: An apparatus and related method for forming a three dimensional polymer based part including a die tool having a specified shape and size and exhibiting an exposed polymer adhering surface corresponding in configuration to a polymeric based part to be created. A bin is filled with a polymer material in particulate form and, upon positioning the die tool overhead, the die tool is inserted into the bin, such as by either lowering the tool or raising the bin. The tool is positioned within the bin such that the exposed and adhering surface is in contact with the particulate material. Heat is applied to either or both the die tool and the bin particulate and, in combination with an optional vibrating motion imparted to the bin, causes a specified volume of polymer material to adhere and to form upon the exposed surface of the die tool.

Abstract: An molding apparatus useful for molding polymer compositions includes a substrate; a first insulating layer having an electrical resistivity of at least about 1010 ohm-centimeters and thermal conductivity of about 0.2 to about 5 watts/(meter-kelvin); a heating element; a second insulating layer having an electrical resistivity of at least about 1010 ohm-centimeters and a thermal conductivity of at least about 5 watts/(meter-kelvin); and a first molding layer having a specific heat capacity of about 100 to about 2,500 joules/(kilogram-kelvin), and optionally, a second molding layer. The apparatus provides rapid heating and cooling of the mold surface. The apparatus may be employed for rapidly molding articles having desirable surface characteristics.

Abstract: A concrete product molding machine supports a vibratable mold having an open top and an open bottom. A stripper head is movable from a position above the mold to an intermediate position ready to strip the molded product from the mold and then on to a lower position in which it has. A pallet receiver is movable from a lower position to a mold closing position in which a pallet it carries closes the bottom of the mold. Disengageable linking mechanism is provided for coupling the striper head and pallet receiver frame for conjoint travel in movement of the stripper head through the mold. A connector assembly connects with a pallet receiver lift arm and incorporates an actuator for varying the position of the upper end of the lift arm and thereby varying the vertical position of the pallet receiver.

Abstract: Cure and consolidation of a viscous thermoplastic resin, especially one that softens and melts at a high temperature, is improved by assisting autoclave pressurized momentum transport for compaction of the composite using high frequency, low amplitude acoustic vibration within the resin. The vibration induces shear thinning in the resin which promotes resin flow, achieves filling or collapse of voids, and assists consolidation of the composite preform.

Abstract: A molding process and apparatus are disclosed herewith including extruding a polymer from at least one nozzle into a mold cavity, and displacing at least one of the nozzle and the mold cavity during the step of extruding to deposit at least a portion of a layer of polymer into the mold cavity, and subsequently enclosing the mold cavity with a mating mold section to produce a molded part.

Abstract: The invention relates to the of poured concrete and the need to avoid air pockets and voids within the setting slurry. At least one reinforcing rod, and preferably a grid of rods, is embedded in the poured concrete. The setting slurry is vibrated by vibrating the rod or grid. A vibrator receives the protruding end of the rod and is vibrated to vibrate the rod.

Abstract: In a method for pressing ceramic powders comprising a powder compaction stage within a mold, after exerting the powder compacting pressure the powder is subjected to close-together pressure pulses while maintaining the compacting pressure applied.

Abstract: A method of installing a refractory lining in a coreless or channel electric induction furnace. For installation of a refractory lining in a furnace wall, the method comprises the steps of providing a dry refractory material between a liner form placed within the furnace and a furnace wall, placing at least one variable frequency/amplitude electric vibrator in operational communication with an element selected from a structural member of the furnace, the liner form, and a vibrator rig placed within the furnace, inducing flow of the dry refractory material by operating at least one variable frequency/amplitude vibrator in a first operational mode having a high amplitude, low frequency vibration, and compacting the dry refractory material by operating at least one variable frequency/amplitude vibrator in a second operational mode having low amplitude, high frequency vibration after inducing flow of the dry refractory material.

Abstract: A female mold for plastic sanitaryware manufacture has an open top to promote improved air escape from the mold as resinous backing resin fills the mold in order to reduce the number of gas inclusions within the backing material after it is cured. The female mold also provides thermal insulation for the curing backing material to permit better curing and to reduce the potential for delamination in the finished product. A production fixture is equipped with a gas impermeable lid for selective contact with the female mold, after the air has been expelled from the mold, in order to control undesirable styrene emissions.

Abstract: A method for packing a stationary phase into a small diameter fluid passageway or flow channel. Capillary action is employed to distribute a stationary phase uniformly along both the length and diameter of the flow channel. The method disclosed here: 1) eliminates the need for high pressure pumps and fittings and the safety hazards associated therewith; 2) allows the use of readily available commercial microparticles, either coated or uncoated, as the stationary phase; 3) provides for different types of particles, different particle sizes, and different particle size distributions to be packed in sequence, or simultaneously; 4) eliminates the need for plugging the flow channel prior to adding the stationary phase to retain the packing particles; and 5) many capillaries can be filled simultaneously.

Abstract: A portable single station apparatus is provided including a structure for receiving a quantity of soil to be compressed into a building block, an enclosed system which provides a linear process for receiving soil, compressing soil and ejecting a formed compressed soil building block from the apparatus. The apparatus is comprised of a stationary chamber equipped with an internal adjustable cavity in which the desired block is to be formed. A pair of opposing pressure heads capable of moving toward and away from each other in unison or independently to receive soil, compress soil, and eject the desired soil building block.

Abstract: A method and apparatus for devulcanizing cured or cross-linked elastomers. The method includes subdividing elastomeric raw material into small particle form, confining the particles of elastomer under high force, as in a screw extruder or the like and, as the particles remain confined, imparting ultrasonic energy to the mass to effect devulcanization. Energy is fed to the confined particles transversely of the axis along which they are advancing, and energy from a source is reflected off a portion of the apparatus and back into the treatment zone so as to achieve maximum energy utilization. In particular instances, reflection of energy is achieved by providing opposed, powered ultrasonic horns that resonate in phase with each other. In another embodiment, oppositely directed, resonantly tuned horns are used, with less than all such horns being powered and the remainder being passive or unpowered reflecting horns who resonant frequency is tuned to that of the powered horn.

Abstract: In a method for pressing ceramic powders comprising a powder compaction stage within a mold, after exerting the powder compacting pressure the powder is subjected to close-together pressure pulses while maintaining the compacting pressure applied.

Abstract: A method and apparatus for extruding pitch based foam is disclosed. The method includes the steps of: forming a viscous pitch foam; passing the precursor through an extrusion tube; and subjecting the precursor in said extrusion tube to a temperature gradient which varies along the length of the extrusion tube to form an extruded carbon foam. The apparatus includes an extrusion tube having a passageway communicatively connected to a chamber in which a viscous pitch foam formed in the chamber paring through the extrusion tube, and a heating mechanism in thermal communication with the tube for heating the viscous pitch foam along the length of the tube in accordance with a predetermined temperature gradient.

Abstract: A method for molding a thermoplastic resin by filling a molten thermoplastic resin into a mold which comprises carrying out the molding of the resin while reducing the solidification temperature of the resin surface which contacts with the mold during the step of filling the resin. According to this molding method, the state of the mold surface can be faithfully transferred to molded articles.

Abstract: A method of molding an elastomeric article comprises: putting an elastomeric article in a mold; softening the elastomeric article in the mold by heating the elastomeric article; pressing the elastomeric article against the mold by pressurizing an inside of the elastomeric article by letting a fluid therein; and changing the pressure of said fluid in a short cycle so as to beat the elastomeric article against the mold repeatedly.

Abstract: A process for coating an upper surface of a panel with a mesh reinforced coating includes the steps of: placing a cementitious mixture in a container having a measured slit in the bottom thereof; passing a length of mesh through the container to produce a cementitious laden mesh; moving said panel and container with respect to each other while laying said cementitious laden mesh onto the upper surface of the panel; and cutting off the mesh to provide a coated panel. The coated panel may be subjected to vibration to smooth the upper surface thereof.

Abstract: A thermosetting resin and filler composition that can be cured in a variety of shapes and dimensions to make a variety of tools is described. One example of a tool that can made is a vacuum-casting mold. One embodiment first involves forming a tool composition comprising (a) from about 65 to about 75 weight percent filler, the filler being selected from the group consisting of Group II metal carbonates, such as calcium carbonate and magnesium carbonate, alumina, silica, ceramic materials, glass, nut shells, fiberglass, dolomite, and mixtures thereof, (b) from about 25 to about 35 weight percent of a thermosetting resin, and (c) a catalyst for catalyzing the formation of the thermoset resin. Once formed, the tool composition is applied to a plug shaped so that the desired tool is formed by curing the composition on, around and/or in the plug. The composition is allowed to cure to form the tool, and the tool is then separated from the plug.

Abstract: A vibration applying apparatus associated with an injection molding machine for applying vibrational repetitive movements to a melt of molding materials includes a rod having a tip end received inside a heating cylinder and disposed in the proximity of a nozzle of the heating cylinder, a stationary guide supporting the rod such that the rod is movable back and forth, a rotating shaft being orthogonal to the rod, a drive motor for rotating the rotating shaft, and a cam mechanism acting between the rotating shaft and the rod so as to convert rotary motion of the rotating shaft into linear reciprocal motion of the rod. With the apparatus thus arranged, the tip end of the reciprocating rod applies vibrational repetitive movements to the melt of molding material, thereby lower the viscosity of melt. The frequency of vibrational repetitive movements can be varied by changing the rotational speed of the drive motor.

Abstract: A method for molding a thermoplastic resin by filling a molten thermoplastic resin into a mold which comprises carrying out the molding of the resin while reducing the solidification temperature of the resin surface which contacts with the mold during the step of filling the resin. According to this molding method, the state of the mold surface can be faithfully transferred to molded articles.

Abstract: A method for forming a lining on the internal faces of a vessel involves installing a granular composition into a gap formed between the internal faces of the vessel and a mandrel. The granular composition is dropped into the gap in the form of a single mass.

Abstract: Method for potting or casting hollow fiber bundles and form a tube sheet as part of fabricating a gas separation membrane module. A hollow fiber bundle is placed in a mold, into which a resin filled with solids injected, and the resin is exposed in a liquid bath in which the mold is immersed, to an ultrasonic field while it is so injected. The solids may be chosen among metals, metal oxides, silica, quartz, ceramics and inorganic salts.

Abstract: The essence of the method resides in that a recess (2) is made in the mounting surface, having the dimensions exceeding those of a chip (3). The chip (3) is gripped with a gripping member appearing as a tool (4) having a flat end and a capillary hole (5) flaring up towards the tool end, and is oriented above the recess (2). Before pressing the chip (3) into the recess (2) a dosed amount of a binder (6) is placed therein. The chip (3) is pressed into the binder (6) until the part of the flat end of the tool (4) which extends beyond the outlines of the chip (3) thrusts against the mounting surface. The pressing-in procedure is stopped as soon as the face surface of the chip (3) is coincided with the surface on which the recess (2) is made, whereupon the gripping tool is disengaged.

Abstract: An injection molding machine includes an injection molding cylinder with a material supply at one end and an injection nozzle at the other end and a material conveyance unit attached to a drive and movable in the injection molding cylinder. The injection molding machine also includes a vibration element for inducing a flow of melt within the injection molding cylinder for homogenizing the melt.

Abstract: A method for controlling a screw injecting apparatus having a heating cylinder and a screw slidably and rotatably received in the heating cylinder and designed to carry out a plasticizing-metering phase in which a predetermined amount of a molten material is accumulated forwardly of the screw by plasticizing and kneading a raw molding material via the screw and the heating cylinder, a waiting phase in which the screw is held inactive for a period between completion of the metering and subsequent injection of the molten material, and an injecting phase in which the molten material is injected. The method comprises the step of causing the apparatus to vibrate the molten material at a predetermined low frequency axially of the screw during the plasticizing-metering phase. By vibrating the molten material at a low frequency during the relatively long plasticizing-metering phase, the viscosity of the molten material can be reduced.