Abstract: A composition includes granules in which zirconia particles are aggregated. The granules have an average circularity of 0.81 or greater based on a projected image.

Abstract: The present invention provides a zirconia pre-sintered body that develops the preferable shade with a short firing time.

Abstract: The invention discloses a special equipment and a method for surface microcrystallization of cementitious materials. The specialized equipment includes a vibrator, a vibration signal generator, a power amplifier and a vibration transmitting body. A signal output terminal of the vibration signal generator is connected to a signal input terminal of the power amplifier, a signal output terminal of the power amplifier is connected to a signal input terminal of the vibrator, the vibrator is connected to the vibration transmitting body, and the vibration transmitting body is to be in contact with the cement product after initial setting. The surface microcrystallization method for cement product: after the casting and before the final setting of the cement product, vibration is applied to its outer or inner surface, the vibration frequency is greater than or equal to 1 KHz, and the vibration time is greater than or equal to 5 minutes.

Abstract: The present disclosure is directed to a method of manufacturing a rotor blade component of a wind turbine is disclosed. The method includes placing at least one first pultruded member into a curved rotor blade component mold. More specifically, the first pultruded member includes at least one design characteristic configured to allow the first pultruded member to sit substantially flush against an inner surface of the curved rotor blade component mold. The method also includes placing at least one second pultruded member atop the at least one first pultruded member and infusing the first and second pultruded members together to form the rotor blade component.

Abstract: A process for controlling the embedding depth of reinforcing mesh to a cementitious board is disclosed. The process comprises applying a pressure from a plate to a reinforcing mesh on a core mix moving downstream on a conveyor, wherein the plate vibrates at a rate that assists in embedding the reinforcing mesh at a depth within the core mix such that the reinforcing mesh is barely visible.

Abstract: The present invention relates to modular columns for construction purposes, which comprise: a metal profile section positioned vertically, functioning as a post that may optionally be anchored to or fixed to the surface of the floor; a series of base modules, “body” and capital, which in turn are formed from two symmetric blocks which have a recess, resulting in a square hollow that is filled with a conventional mixture of cement, river sand and lime, which, once dried, holds the blocks firmly joined to the profile section. The invention furthermore provides a method for the production of the modular columns and also a procedure for the installation thereof, with alternatives for columns that are load-bearing or that are simply for aesthetic purposes, said methodologies involving a series of practical, easy-to-follow steps.

Abstract: Provided are filtration matrixes formed from adsorptive media, such as activated carbon, and polymeric binder for use in water filtration systems. A first aspect of the invention provides methods of making a filtration matrix comprising: mixing an adsorptive media with a polymeric binder to form a mixture; impulse filling a mold with the mixture; and processing the mixture to form the filtration matrix. Filtration matrixes formed from this method are also provided. Another aspect includes methods of making a filtration matrix comprising: mixing adsorptive media with a polymeric binder to form a mixture; filling a mold with the mixture; and applying heat and pressure the mixture to form the filtration matrix, wherein the step of applying pressure to the mixture comprises compressing the mixture until a desired final shape of the filtration matrix is obtained.

Abstract: The present invention relates to a method and device for manufacturing artificial stone. More specifically, the method includes the steps of: (a) mixing two or more kinds of chips having different grain sizes with a raw material for artificial stone; (b) injecting the raw material for artificial stone mixed with the chips into a mold; (c) applying primary vibration using a vibration device such that the raw material is uniformly dispersed in the mold; (d) applying vacuum to eliminate bubbles in the raw material; and (e) molding artificial stone by applying a secondary vibration using the vibration device. According to the method and device for manufacturing artificial stone of the present invention, the deposition rate of chips exposed at a surface of artificial stone is maximized, and thus the external appearance of artificial stone can be more naturally expressed and resistance against abrasion and staining can be improved.

Abstract: The present invention relates to apparatus and methods of vibration. In particular, the present invention relates to apparatus and methods of vibration for tooling in a structure, such as, for example, a fuselage. In one implementation, the tooling comprises at least two conductors that create a force to vibrate the media in the tooling, which improves the compaction of the media in the tooling and the extraction of the media from the tooling. Other implementations may be used for compaction and/or extraction of the media in the tooling.

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: 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: The invention relates to a method and device for the compression of granular materials. On compressing granular material to give prepared products e.g. concrete paving slabs, a resonance vibrator with an oscillating mass-spring system is applied, which may be energised by a controllable energiser to produce forced oscillation of a given frequency and oscillatory amplitude. The resonant effect, making use of the proximity of the inherent resonance frequency and the exciter frequency permits a reduction in the size of the exciter force. According to the invention, along with an adjustment of the exciter frequency the resonant frequency is also simultaneously co-adjusted by means of a suitable adjuster, in order to be able to g make use of the resonance effect throughout the whole spectrum of the exciter frequencies to be carried out.

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 process for forming molded articles from particulate thermoplastic material, the process comprising: (a) providing a track having a plurality of process stations, (b) providing a mold assembly comprising a base, at least one hollow mold upstanding from the base, and guide means on the base for moving the mold assembly on the track, (c) preheating the mold assembly at a preheat station on the track, (d) moving the mold assembly from the preheat station to a transfer station on the track, (e) transferring the mold assembly from the transfer station to a molding station, (f) forming the molded articles by fusing particulate material to the at least one mold at the molding station, (g) transferring the mold assembly with the molded articles thereon from the molding station back to the transfer station, (h) moving the mold assembly from the transfer station to a cooling station on the track, (i) moving the mold assembly from the cooling station to an unloading station on the track, (j) removing the mol

Abstract: A concrete product molding machine supports a mold with a vertically extending mold cavity. A pallet support is mounted for lifting movement to dispose a pallet to close the cavity. Attachment structure extends from the mold to rest on frame surfaces prior to being moved upwardly to provide a clearance for vertical vibration of the mold. Mechanism vibrates the mold in a vertical path having lateral x and y axis vibration components. A guidance pin receiver is carried by the support attachment structure and a pin carrier assembly on the machine frame carries a vertically reciprocal guidance pin movable from a remote position up into the pin receiver. A vibration limiter is disposed laterally to the pin for limiting at least one of the lateral vibration components and a motor operated mechanism is coupled to the pin for moving the pin vertically.

Abstract: A method and apparatus for preparing single layer tiles or slabs from a mixture of a granulated stone material having a selected particle size, and from a slurry formed by cement, a quantity of between 0.25 and 0.36 parts by weight of water relative to the weight of cement, and a plasticizer for cementitious slurries, in which the quantity of slurry added is slightly in excess of the quantity corresponding to the void fraction of the granulated material, in forming mould, containing a layer of predetermined thickness of the mixture, to be subjected to a first very short deaeration step under the effect of a very high vacuum and to a subsequent vibration step under a lower vacuum, after which the mould goes on to seeing and hardness steps.

Abstract: A method and apparatus for producing tubular molded products from molding material includes a mold casing and a mold core having a common longitudinal central axis which is vertically disposed. The mold casing and mold core are spaced from one another to define a molding space therebetween. A supply device supplies molding material from above the molding space into the molding space. Treatment apparatus is disposed at treatment zones on the mold core for treating the molding material in the molding space, the treatment including treating the molding material by shaking the molding material or treating the molding material by heating the molding material, or both.

Abstract: Molten resin material is continuously extruded from a first extruding hole extending in a width direction of a first extruding nozzle, and is passed through a second extruding nozzle which is arranged a front surface of the first extruding nozzle and has a second extruding hole at a position corresponding to the first extruding hole. The second extruding hole is a single extruding hole having a plurality of longitudinal rectangular openings arranged at the same pitch in the width direction, and a communicating section with which one end of the respective rectangular openings communicate, and the first extruding hole is a single extruding hole having coupling-element-molding openings arranged corresponding to the rectangular openings and a base-member-molding opening corresponding to the communicating section.

Abstract: A method of producing three dimensional ordered arrays of particles. The method may be used for the preparation of nanocomposite materials with highly periodic structures. More particularly the invention provides a method of producing three dimensional arrays based on applying a controlled oscillatory motion to settling dispersions of colloid particles. The controlled oscillatory motion is characterized by G=A&ohgr;2/g, wherein g is the gravitational constant, A is the displacement and &ohgr; is angular frequency. G is maintained in the desired range by varying values of A within an effective range of displacements and &ugr; within an effective range of frequencies.

Abstract: A pulsed method for creating composite structures employs a pulsed application of compaction force to composite material. During the application of the compaction force, curing energy is intermittently or continually supplied to the composite material. One type of machine employing this process may create a single batch; another such machine incrementally advances the raw or partially cured composite material to create a continuous cured and compacted length of composite material. Preferably, for the single batch machine, the pulsed compaction energy diminishes in amplitude or ceases upon the gelation of the composite material; and, for the continuous manufacturing machine, each increment of composite material is moved, prior to or at gelation of the increment of composite material, into an area of the machine where pressures are continuous.

Abstract: In a method for compacting a granular, loosely coherent mass, such as moist mortar, to obtain end products such as paving stones, kerbstones and the like, an installation is used which includes a vibrating table, a mold for the mass to be compacted, a stamp for pressing the mass into the mold, a hydraulic exciter and a hydraulic pressure element respectively connected to the vibrating table and the stamp, and a driver and a controller for controlling the exciter and pressure elements.

Abstract: Apparatus and methods for stabilizing soils and other granular materials at the site at which they are located. The apparatus includes a platform, fixed or mobile at a contamination site, carrying a hopper for receiving contaminated material to be stabilized including additives as required, a mixer for introducing additives to the material connected to the hopper, a mechanism for transporting contaminated granular materials from an adjacent contaminated site to the mixer, at least one mold having at least one movable wall, a harmonic compactor to form a uniformly dense, solid compacted preform body, and a discharge station for handling or holding the preform. Where desired or required an air dryer, thermal curing chamber or sintering furnace may be used to dry and/or fuse the preform into a final block.

Abstract: An apparatus for continuously forming plate articles which can be installed in a low factory building, which can sufficiently press, heat and dry a mixture of materials, and which can manufacture surface-treated plate articles with high efficiency at a low cost. The mixture is introduced into an introducing chamber, and at the same time, decorative films are fed into the introducing chamber on both sides of the mixture. A semi-finished product made up of the mixture and decorative films are fed between a pair of horizontal hot plates to form it into a strip article. The strip article thus formed is cooled and cut into a plurality of plate articles provided with decorative layers on both sides.

Abstract: High-flexural-strength concrete is produced by mixing wet hydraulic cement-sand mixture with coarse, flat, tabular aggregate, pouring the resulting mixture into a form in a shallow layer, vibrating the form containing the mixture, thereby orienting the coarse aggregate particles, pouring another shallow layer of the mixture into the form, again vibrating the form, and repeating these processes until the form has been filled to the desired level. The mixture then is allowed to cure. Cast-in-place items are prepared by placing thin layers or lifts of oriented, tabular-aggregate concrete into conventional forms and vibrating each lift using flat-plate vibrators.

Abstract: An apparatus for shaping deformable materials during molding processes. Such an apparatus includes, among other things, a vibrating wall assembly. The vibrating wall assembly fits the contours of at least a portion of a mold's cavity. The vibrating wall assembly includes a pliable wall positioned within the mold. The pliable wall is positioned such that its outside wall surface is adjacent to a portion of the mold's inside wall surface; and its inside wall surface defines a portion of the geometric configuration of the material passing thereover. The pliable wall is designed to deform from its original shape when a positive or negative pressure is exerted on its inside or outside wall surface. This positive and/or negative pressure is generated, at least in part, by the displacement of a displaceable fluid. This fluid is contained within a chamber. The chamber is in communication with a portion of the pliable wall's outside wall surface.

Abstract: A mold box is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams. A feed drawer dispenses concrete material into the mold box while a vibration system vertically vibrates the mold box while dampening horizontal vibration. The vibration system is driven by a single drive shaft that actuates first and second vibrator rods while at the same rotating a counter-weight in a counter-rotating direction. A set of alignment brackets lock the mold box into a predetermined aligned relationship while being mounted in the product forming machine. The bottom side of each mold box is mounted to the product forming machine in the same relative position to reduce machine readjustments. A set of telescoping legs hold the feed drawer assembly variable distances above the mold box. A unitized pallet feeder quickly moves pallets one at a time from an "on-deck" position to a "receiving" position underneath the mold box.

Abstract: Cast stone for architectural use is made by subjecting a mixture of aggregate and Portland cement in a mold to repeated dropping against an anvil, and thereafter applying a vertical pressure to the contents of the mold while applying repeated mechanical blows to a table on which the mold is situated. The process makes it possible to produce a high quality cast stone in 3-4 minutes as compared with the 20 minutes required using prior processes.

Abstract: A friction member, such as a brake lining, disk pad or clutch facing, may be molded using a method in which the mold for the member is vibrated at a frequency and with amplitudes that are selected to imbue the friction member with desired physical properties, such as a predetermined specific gravity and porosity. The materials forming the friction member may be placed in a mold and the pressure on the mold increased and relaxed a predetermined number of times. Each time the pressure on the mold is increased, the mold is vibrated at the desired frequency and with the desired amplitude to achieve the desired physical properties. Upon completeion of the periodic vibration of the mold, the material in the mold may be subjected to a predetermined rated pressure for a predetermined period of time without vibration.

Abstract: This invention relates to the field of paperboard tray forming machines which typically consist of an upper and lower die which interlock to deform a paperboard blank. The invention is an arcuate yoke having a pair of legs to which locating stops and side guide plates are rigidly attached. The die is angled to the earth so that a blank deposited onto the die is gravity biased toward the locating stops. The yoke is vibratingly driven and the blank is vibrated into position on the lower die by contacting the locating stops and side guide plates and vibrating to the blank's lowest position on the die.

Abstract: An injection method for making a hole in an injection molded plastic article comprising the steps of filling a mold cavity with a molten plastic and cooling the mold to effect gate seal. A first hole-making punch and a second punch, which are slidably inserted in a bore provided in the mold coinciding with the hole to be made in the article in an axial direction in which a movable mold half is opened and closed, are vibrated with high frequency after gate seal is completed to soften the solidified plastic between the two punches. The punches are then displaced with respect to the bore when the plastic is softened to make the hole. A second injection method comprises the step of making the hole in the molded article by sliding the punches during both dwelling and cooling subsequent to the completion of dwelling after filling the mold with the molten plastic and before gate seal is effected.

Abstract: A method for degating an injection molded plastic article includes the steps of filling a mold cavity with a molten plastic, dwelling and cooling the mold subsequent to filling to effect gate seal. A first degating punch and a second punch are provided slidably inserted in holes in the mold which cross a gate in an axial direction, being the direction in which a movable mold half is opened and closed. The punches are vibrated at a high frequency after gate seal is completed in order to soften the solidified plastic in the gate. The punches are then displaced with respect to the gate when the plastic is softened in order to effect degating. In another method, a step of cutting the gate in the molded article by sliding the punches occurs during both dwelling after filling the mold with the molten plastic, and cooling subsequent to the completion of dwelling, and before gate seal is effected.

Abstract: An improved method for carrying out an extrusion is provided, wherein an extrusion material in a flowable state is passed through a die under a pressure to impart a desired shape thereto, and the extrusion is carried out while the die is resonated by an ultrasonic wave in such a manner that the resonance occurs at an n wavelength, wherein n is m/2 and m is a positive integer. Further, an apparatus suitable for carrying out this extrusion method is provided.

Abstract: A device for manufacturing concrete parts, particularly concrete pipes, and based on the principle of sinking mold whereby a molding bottom ring together with a jacket are continuously lowered relative to a stationary mold core while concrete mixture is poured from above and distributed into the emerging molding space by a radial pressing device mounted on the top end of the mold core. Simultaneously with the lowering of the mold jacket and the molding bottom ring a supply device for delivering the concrete material is also lowered such as to keep a constant distance from the open top end of the mold jacekt. The radial pressing device is designed to compact the incoming concrete material in radial direction without imparting any torque thereto. In this manner any stress in the finished part, particularly between the concrete and reinforcing wire mesh is effectively avoided.

Abstract: A concrete block molding machine has a vibratible mold box incorporating at least one molding cavity for a cement mixture which is to be densified in the cavity. A continuously driven shaft assembly mounts an eccentric fixed portion and a circumferentially adjustable balancing mass. The shaft assembly has a cylinder with a piston therein, connected to the mass to produce rotary motion of the mass relative to the fixed eccentric portion. A spring of predetermined rate opposes this. The pressure of the fluid introduced is varied to change the amplitude of the vibration imparted during each cycle.

Abstract: A method of making a water soluble weight, the weight being of the type for attachment to a fishing line, hook or lure by means of a closed loop of thread or string embedded in and extending from the weight, is provided. The weights are formed by filling appropriately shaped cavities in a mold with a mixture consisting essentially of water, soil (preferably a silt-loam mixture or silty clay loam) and sand size stone. The mold rests upon a layer of resilient material (e.g., sponge rubber) which in turn is attached to a rigid layer mounted by resilient means upon a base plate. Openings in the resilient layer overlie recesses in the rigid layer, the openings and recesses being aligned with openings in the bottom of each mold cavity to permit insertion, with the aid of a tool having a notched end, of the thread or string through the mixture in the mold cavity into the underlying recess.

Abstract: A method for compacting a concrete mix in a casting mold into which the concrete mix is poured between at least two opposite and approximately parallel mold walls. The opposite mold walls are moved in a push-pull manner and essentially on the plane of the walls so that the concrete mix is subjected by the frictional action from the mold walls to an internal compacting shear produced by contradirectional movement of the opposite mold walls.

Abstract: A method and an apparatus for compacting newly poured comparatively dry concrete or similar porous plastic raw materials (6) with a direct mechanically coupled 3-mass oscillatory system where the raw material in its confined form is vibrated and compacted from both sides by two vibrating planes with synchronized directional vibrations in phase opposition. Only one vibrating plane (M1) includes synchronized directional vibrators (4). Its other part (M3) is elastically coupled with (M1) by spacer means (8) (M2) arranged between a spring system (7) being so dimensioned that the parts is dynamically balanced whereby the two parts (M1) and (M3) oscillate in phase opposition close to or at the 2nd natural frequency of the system with a dynamic amplification of the amplitudes in relation to the impulses imparted from the vibrators (4) at the same time while (M2) is stationary. During the process (M1) and (M3) are carried towards each other by (M2) as the raw material is gradually compacted.

Abstract: A process of producing ICMUs (insulated concrete masonry units) having an inner load-bearing portion and one or two outer insulating portions are disclosed. Disregarding the insulation cores, heat flows from the outer side wall or walls to the inner portion through outer end walls and, in some embodiments, webs. These outer side walls and webs are heat bridges and are thinner and of significantly lower density than the other walls of the ICMU, thereby providing improved thermal insulation.Also disclosed are ICMUs with a vertical or horizontal recess in one outer insulating portion. Electrical conduit and/or plumbing can be placed into these recesses. In addition, corner ICMUs are disclosed which provide increased structural strength when used to construct a 90.degree. corner between two structural walls because of a special mid-wall in the corner ICMU.

Abstract: An apparatus for making composite sheets that are homogeneous, dense, and have an even surface. The apparatus comprises an oscillating plate unit that vibrates in a direction transverse to a belt means. Composite pre-mix is deposited on the conveyor belt which draws it under the oscillating plate. The oscillating plate has three sections: a curved plate section; an inclined plate section and a flat plate section. The composite pre-mix is metered by the curved plate section, compacted by the inclined plate section and maintained compacted by the flat plate section. These thus formed composite sheets may be cured and are particularly adapted for use in fuel cell structures such as electrode substrates.

Abstract: Method for the casting of hollow slabs out of concrete by slide-casting. Concrete mix is extruded onto a base (18) preferably by means of a conical screw spiral (2). Thereinafter the mix is compacted by moving a cavity mandrel (3) fitted after the screw sprial. The end of the cavity mandrel (3) is moved along a path of movement of desired shape. The final end of the mandrel may be attached to the machine by means of a ball joint.

Abstract: A method and apparatus for curing concrete cement by packing the concrete with aid of a vibrator having a variable vibration speed. The vibration speed is selected according to the viscosity of the cement, as is the time period. The disclosed method and apparatus causes the cement to be uniformly settled and distributed throughout the objective space field.

Abstract: A method of preparing an elastically deformable magnetic object in which fine metal particles treated with a settable organic substance are mixed with a rubber material in a pulverized form to make a powdery mass. This is shaped under pressure, in a magnetic field into a compacted body and heated followed by cooling to allow the powder particles of rubber materials to bond to the magnetic particles and join them together to yield a homogeneous elastically deformable metal object with the magnetic particles uniformly distributed therein.

Abstract: A pretreatment process to remove entrapped air from liquid polyester blends intended as the matrix of cast marble is disclosed. The formulated blend is subjected to a simultaneous evacuating, vibrating and shearing step which is critical within broad parameters. The thus treated blend, after casting, will be non-porous in cross section, thereby making it suitable for countertops and other parts which must be field cut to specifications.

Abstract: Method and apparatus for forming particles into shaped preforms by confining the loose particles in a shaped closure having at least one moveable side, subjecting each particle of the mass and at least a portion of the mold to an acceleration of a magnitude of at least 25 to 50 G's, and preferably in the range of 500 G's to 5000 G's, or greater, to generate at each particles a force causing such particle to impact with adjacent particles and form a homogeneous, fused article, and articles so formed.

Abstract: A method and an apparatus for the manufacture of bricks with the aid of a mold normally open on top, ceramic material which may be introduced into the mold, and a piston disposed above the mold which may be moved with respect to the mold, and forms a cover surface of the mold when entering the top of the mold, includes the steps of exerting a non-oscillatory pressure by the piston on the ceramic material, and additionally exerting an oscillatory pressure on the ceramic material.

Abstract: In order to manufacture a casting nozzle plate assembly, e.g., a sliding closure of a slide plate and collector nozzle, without having to further machine the working surface of one assembly a mold is arranged on a trued slab. A refractory concrete is poured into the mold while the mold is vibrated. The concrete is allowed to harden before being separated from trued slab. The resulting assembly has a smooth work (e.g., sliding) surface for contact with another element.

Abstract: A method of and apparatus for the manufacturing of products of plastic to which a filler preferably of wood material has been added to a high degree as described. A thermosetting or otherwise solidifying plastic compound has finely divided filling material distributed therein so that a mixture is obtained. The mixture is introduced into a mold and is pressed by a ram adapted to the shape of the product. The mixture in the mold is subjected to vibrations of a special form provided from synchronized vibrations.

Abstract: A pourable substance is introduced into a container having a perforated bottom which defines, together with a mold, a forming space which is to be filled with the pourable substance. The forming space has a configuration substantially corresponding to that of the preform to be made, and the pourable substance passes through the perforations of the bottom of the container and is distributed throughout the forming space, owing to vibrations to which the perforated bottom of the container, either alone or together with the container, is subjected. The pourable substance is compacted within the forming space due to the vibration of the perforated bottom so that the preform can be subsequently taken out of the mold and compressed elsewhere into a profiled article, or the profiled article can be produced from the preform directly in the mold.

Abstract: In a method of casting in a horizontal mould a hollow, reinforced tapering concrete post having a thin wall and particularly a length exceeding 10 to 15 m, there is placed in the mould a tapering reinforcing cage or basket in which a core, e.g. a steel core, is inserted to form a substantially annular mould chamber. Said mould chamber is closed with the exception of an upper filling slot. A readily pourable concrete mass is charged to the mould from above through said filling slot. The mould is then vibrated without being rotated such that concrete fills the annular mould chamber. Hardening of the concrete is accelerated by heating, and the core is withdrawn from the formed post before the concrete has completely hardened. The finished post is then removed from the mould.

Abstract: Products are molded in a mold assembled prior to molding from a lower punch and a mold case arranged in coaxial relationship, the mold being subjected, in the course of charging it with the material, to harmonic vibrations whereby the material undergoes precompaction, and the subsequent compaction of the material by the combined effect of a vertical vibratory shock load and a compressive load is aided by vibrating the mold case, the vertical vibratory shock load being applied to the material via the lower punch. The apparatus for molding products according to the method of the invention incorporates power cylinders mounted on a base, with an additional crosshead being suspended by elastic members on the rods of said power cylinders, said additional crosshead being adapted to reciprocate along the columns of the apparatus, and the additional crosshead mounts vibration exciters and a mold case, whereas the vibrating frame carries the lower punch mounted in coaxial relationship with the mold case.