Abstract: A method of making pre-grouted mosaic panels, wherein each panel (1) is formed from a plurality of mosaic tiles (2) each having a upper surface (4) and a lower surface (5), the tiles (2) being laid over a substantially horizontal support base (S) in mutually spaced positions, to define a plurality of grooves (3). The method includes a step of placing a first thermoformable polymeric sheet element (10) on the upper (4) and lower (5) surfaces of the mosaic tiles (2) and a later step of thermoforming the first sheet element (10) for the latter to at least partially fill the grooves (3) when it is thermoformed. A pre-grouted mosaic panel that can be obtained by such method.

Abstract: A method for producing a single-sided mold and a double-sided coining mold are provided. The method comprises the following steps: S1. forming a mold cavity on the single-sided mold according to shape of a product; S2. engraving a surface of the mold cavity by a first engraving and milling cutter to form engraved holes, and then inserting a second engraving and milling cutter into the engraved holes for further engraving to form holes to be coined; S3. repeating the step S2 until a predefined number of the holes to be coined are formed on the surface of the mold cavity; S4. placing a coining die with hardened tips on the surface of the mold cavity, and embedding each of the hardened tips into one of the holes to be coined respectively, and then the mold cavity being molded by a coining process.

Abstract: A system and a method for molding a part from fiber cement, or fibrocement, slurry are provided. The molding is preferably made by pressure injection of the slurry. The slurry includes cementitious material, additives, fibers and water. The fibers can include polypropylene, polyethylene, polyacrylic, cellulose, and/or asbestos fibers. First and second molding sections define, at least partially, a chamber. The second molding section has at least one evacuating channel. The system includes a slurry inlet communicating with the chamber, for inserting the slurry. A bladder covers the first molding section, the bladder being inflatable for compressing the slurry between the bladder and the second molding section. A filter covers the second molding section and allows water contained in the slurry to pass through while retaining the cementitious material and fibers within the chamber. A pressurized fluid inlet port communicates with at least one conduit for inflating the bladder.

Abstract: A method for manufacturing rigid panels made of a composite material requires a caul sheet having a smooth surface that is formed with a plurality of grooves. A first layer of the composite material is laid on the caul sheet, and is cut to create flaps that extend into the respective grooves. Strips of composite material are then placed along the edges of the groove to extend and overlap each other in the groove. Next, a unidirectional ply is placed along the length of the groove, and this combination is then covered with a second layer of the composite material. Together, the combination of the first and second layers, the strips and the unidirectional ply are co-cured to create a rigid panel with integral stiffening members.

Abstract: The EAFD stabilizer for returned concrete and mixer drum wash water includes various methods of using EAFD as a stabilizer in making concrete. The potentially hazardous stockpile of EAFD can be used in practical construction, which has a positive impact on the environment. A certain amount of EAFD is added to cement being mixed or to wash water and acts as a stabilizer, the wash water being used to make a cement mixture. This resultant EAFD stabilized concrete mixture stabilizes overnight.

Abstract: The invention concerns a disc-shaped retaining device for bushings of a rotary tablet press, wherein the disc-shaped retaining device comprises two disc halves that are connected with one another, each of which shows multiple holes, which align with one another if the disc halves are connected with one another and thus form mounting holes in which one respective bushing is located, wherein the bushings between the disc halves that are connected with one another are designed in a form-fit manner.

Abstract: An RTM method in which a preform formed from a reinforcing fiber substrate is placed in a cavity of a molding die, and resin is injected from a plurality of injection ports into the cavity and impregnated into the preform, includes disposing the plurality of injection ports in first positions in a central section of the cavity corresponding to positions of the preform located in a product area of an article to be finally molded and second positions located in a periphery of the cavity corresponding to positions of the preform outside the product area of the article to be finally molded or corresponding to positions inside the cavity but outside an area of the preform, and causing the timing of closing the injection ports after resin injection to be different from each other between injection ports disposed in the first positions and injection ports disposed in the second positions.

Abstract: Radius fillers for composite structures, composite structures that include the radius fillers, and systems and methods of forming the radius fillers. The systems and methods may be configured to create a pre-form that may be utilized to form a radius filler and/or create a radius filler from the pre-form. Creating the pre-form may include extending a plurality of lengths of composite tape from a composite tape source and receiving the plurality of lengths of composite tape in a pre-form forming structure, converging and/or otherwise combining the plurality of lengths of composite tape within the pre-form forming structure to produce the pre-form, and/or withdrawing the pre-form from the pre-form forming structure. Creating the radius filler from the pre-form may include receiving the pre-form in a radius filler forming structure and producing the radius filler from the radius filler forming structure.

Abstract: A forming system includes a frame and two forming walls. The two forming walls are positioned at a distance from each other to define a first vertical wall course. One forming wall is supported by the frame such that the one forming wall can be translated toward or away from the respective other forming wall. The frame can be raised to raise the two forming walls to be positioned to pour a second vertical course on top of the first vertical course. The translation of the one forming wall allows for the pouring of the first vertical course with horizontally extending rebar that extends through the one forming wall outside of the first vertical wall course, to tie in to a subsequently poured floor slab. The translation permits the vertical raising of the one forming wall, without striking the extending rebar, to pour the second vertical course on the first vertical course. A worker's platform is provided that is supported by the frame and vertically movable by raising the frame.

Abstract: A machine for manufacturing containers from blanks of plastic material, which includes an oven furnished with a plurality of radiation sources for heating blanks as they travel through at a predetermined speed of travel and heating profile, and a programmed control center for modifying the speed of travel and heating profile based on a temperature measurement made on a blank leaving the oven, and a pressure measurement made in the blank during a subsequent blowing.

Abstract: A transfer device includes a holding body that holds a molded material; a first roller that holds, together with the holding body, a wound mold and the molded material held by the holding body so as to carry out a transfer, and rotates about a central axis to move with respect to the holding body; and a second roller on which the mold extending from the first roller is wound in a direction away from the molded material held by the holding body, the second roller rotating about a central axis to relatively move together with the first roller.

Abstract: A method for producing a skin of a leading edge for an aircraft wing element, including an assembly of resistive heating elements designed to form an integral part of a system for de-icing and/or anti-icing of the leading edge. The method includes curing a stack in a mold between two molding surfaces facing each other. The stack includes the resistive heating elements assembly, two adhesive films arranged respectively on either side of the assembly so that the heating elements adhere to each of these two adhesive films, two layers of electrically insulating pre-impregnated fibers adhering respectively to the two adhesive films on the sides opposite those receiving the heating elements, and a plurality of layers of pre-impregnated carbon fibers.

Abstract: Wrinkling of thin films is a strain-driven process that enables scalable and low-cost fabrication of periodic micro and nano scale patterns. However, real-world application is limited by the inability of current tools to provide the means for applying large, accurate, and non-equal biaxial strains via a device that can fit within the vacuum chambers that are required for thin film deposition/growth during wrinkling. The present biaxial tensile stage is a compact system that enables one to apply large and accurate non-equal biaxial strains to elastomeric films. It consists of (i) fixtures to clamp and hold films onto the stage, (ii) linear bearings for motion guidance, (iii) integrated actuators for real-time stretch control, (iv) base with kinematic coupling for registration to a metrology system, and (v) the structural frame.

Abstract: The invention relates to a process for manufacturing a textile preform from a fibrous array with continuous fibres, the process comprising a step for heating of the fibrous array between a matrix and a punch to stiffen this fibrous array. To cut down processing time, the heating step is performed by having a hot gas flow circulate through the matrix, the fibrous array and the punch.

Abstract: A cart that helps eliminate contaminants from a printing system with a rail support track includes a platform, a first bearing, and a first blade. The first bearing is operatively connected to the platform, and is positioned and configured to roll along a first cylindrical rail of a rail support track of a printing system to enable the platform to move along the first cylindrical rail. The first blade has a leading edge oriented at an acute angle relative to a curved surface of the first cylindrical rail, and is configured to engage the curved surface to remove contaminant as the cart moves along the first cylindrical rail.

Abstract: An imprint (18) that represents a predefined pattern on an article. Article (10) comprises a body (12) made of a first material with a first thermal expansion coefficient (C1). The method comprises a step of incorporating a piece (22) in body (12) made of a second material with a second thermal expansion coefficient (C2), lower than the first coefficient, a step of heating article (10) to a predefined temperature to induce expansion of the materials, and then a step of cooling article (10) to induce shrinkage of the materials, generating a mechanicals stress that deforms article (10). Piece (22) is shaped so that the deformation generated corresponds to predefined pattern (20).

Abstract: One embodiment of a heated nozzle for extruding meltable material consists of an electrically conductive nozzle, comprised of an inlet, an outlet, and a passage connecting inlet and outlet. The nozzle fits into a hole or gap cut or formed through a loop of high permeability soft magnetic material such as ferrite or pressed iron powder. Electrically conductive wire is coiled around and through this magnetic loop to form a coil. A high-frequency alternating current is supplied to the coil, inducing a magnetic field in the magnetic core. The magnetic field, when passing through the electrically conductive nozzle, induces eddy currents that heat the nozzle to melt the material entering the inlet.

Abstract: A mobile cart that moves through a three-dimensional object printing system includes a first member having a pair of surface that slide along a pair of tracks, a receiver mounted to the first member that moves the cart along the tracks, and a planar member that has a surface for forming a three-dimensional object, and that is connected to the first member. The planar member and the first member are configured to enable an ejector head positioned opposite the track to pass between the planar member and the first member as the cart moves along the track.

Abstract: A device for fabricating a composite material part by injecting resin into a fiber structure. The device includes: a first die presenting two adjacent support surfaces defining a reentrant angle between them; at least one chock with a wedge-shaped portion configured to press the fiber structure into the angle; and a second die movable relative to the first die, the first and second dies being configured to clamp on the fiber structure and the chock. The chock is connected to the second die by at least one link, the link being hinged relative to the second die and relative to the chock to guide the wedge-shaped portion towards the angle to press the fiber structure into the angle when the second die approaches the first die.

Abstract: A mobile cart that moves through a three-dimensional object printing system includes a platform, and at least one bearing operatively connected to the platform and configured to engage with a lower surface of a rail of the printing system in order to locate the platform with respect to an ejector head positioned opposite the rail. The cart further includes at least one other bearing operatively connected to the platform and configured to engage with an upper surface of the rail and apply a bias force that urges the at least one bearing against the lower surface of the rail. The rail can be configured to block material ejected by the ejector head from reaching the lower surface thereon.