Abstract: A building apparatus for building a three-dimensional object includes: an inkjet head that ejects ink as a building material; a scanning driver that causes the inkjet head to perform a scanning operation of moving relative to the object being built; a flattening roller that flattens a layer of the ink; and an ink removal unit that removes, from the flattening roller, the ink that is scraped off by the flattening roller. The ink removal unit includes a flow channel formation unit that forms a flow channel of fluid that enables the ink adhering to the flattening roller to be removed by causing the fluid for removing the ink to flow out or flow in, and removes the ink from the flattening roller without scraping off the ink from the flattening roller. Hence, flattening the layer of the building material more appropriately.

Abstract: The present invention aims to provide a method for producing a porous gel-containing liquid that is inexpensive and excellent in homogeneity. The porous gel-containing liquid production method according to the present invention is a method including: a pulverization step of pulverizing a gel of a porous body, wherein the pulverization step is carried out as multi-stage pulverization including a plurality of pulverization stages.

Abstract: A method of producing a blown film with a controlled thickness profile, comprises the steps of: extruding molten plastic through an annular extrusion die; cooling the molten plastic using an annular blower around the extrusion die, positioning one or more sources of supplemental air at one or more desired circumferential positions about the annular extrusion die and adjacent to the extruded molten plastic, the annular blower and the one or more sources of supplemental air being operated to supply cooling air to the molten plastic between the annular extrusion die and the frost line where the molten plastic solidifies; and controlling the one or more sources of supplemental air to form one or more areas of increased thickness along a circumferential thickness profile of the blown film, the one or more areas of increased thickness having a thickness that is greater than an average thickness of the circumferential profile.

Abstract: A hydraulic advancement/postponement assembly is operably coupled to a first ejector plate and to a second ejector plate. The hydraulic advancement/postponement assembly includes a first hydraulic cylinder having a first housing defining a first volume and a first piston, the first housing connected to the first ejector plate and the first piston connected to a fixed element. The hydraulic advancement/postponement assembly includes a second hydraulic cylinder disposed in fluid communication with the first hydraulic cylinder, the second hydraulic cylinder having a second housing defining a second volume and a second piston, the second housing connected to the first ejector plate and a second piston connected to the second ejector plate.

Abstract: A molding method and a molding system for improving a molding speed of a resin molded member. In the method, firstly a thermoplastic resin composite material is filled in a metal mold (i.e., at time T0), and subsequently a mold-clamping process gets started. As the mold-clamping process progresses, a first decompression circuit starts to decompress an inside of a cavity when the cavity is closed by a sealing member provided on the metal mold. Then, as the mold-clamping process further progresses, the thermoplastic resin composite material thus filled in the metal mold contacts an upper mold of the metal mold (i.e., at time T2). After that, a second decompression circuit starts to decompress the inside of the cavity, thereby to complete the mold-clamping process (i.e., at time T3).

Abstract: A building apparatus for building a three-dimensional object includes: an inkjet head that ejects ink as a building material; a scanning driver that causes the inkjet head to perform a scanning operation of moving relative to the object being built; a flattening roller that flattens a layer of the ink; and an ink removal unit that removes, from the flattening roller, the ink that is scraped off by the flattening roller. The ink removal unit includes a flow channel formation unit that forms a flow channel of fluid that enables the ink adhering to the flattening roller to be removed by causing the fluid for removing the ink to flow out or flow in, and removes the ink from the flattening roller without scraping off the ink from the flattening roller. Hence, flattening the layer of the building material more appropriately.

Abstract: A method for thermoforming an article includes extruding a sheet of material, conditioning the sheet with a roller, thermoforming the sheet to provide a web, and cutting the web to provide the article.

Abstract: A high temperature resistant polyimide film and its preparation method. The present invention relates to a polyimide film and its preparation method and solves the problems of honeycomb's and skin panel's core adhesive—polyimide film with insufficient heat resistance, no climbing of bonding core structure and adhesive fillet formation. The high temperature resistant polyimide film is made by polyimide solution, inorganic filler modifier and interface coupling agent by the steps of: under specific temperature and stirring conditions, adding inorganic filler modifier and interface coupling agent to polyimide solution, stirring to obtain the adhesive agent; filtering and degassing the adhesive agent, casting to a stainless steel drum with carrier cloth and release paper to obtain a self-supporting film; then heating and annealing to obtain the final polyimide film. The present invention is applied to high temperature resistant polyimide film and its preparation method.

Abstract: A carbon nanotube (CNT) sheet containing CNTs, arranged is a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.5. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electro-thermal heating, electromagnetic wave absorption, lightning strike dissipation, EMI shielding, thermal interface pads, energy storage, and heat dissipation.

Abstract: According to one embodiment, an additive manufacturing device includes a frame; a first gantry; and a first carriage. The first gantry has a length that extends along a first horizontal dimension of the frame. The first gantry is configured to move back and forth along a second horizontal dimension of the frame. The first carriage is configured to move back and forth along the length of the first gantry. The device further includes a second gantry, and a second carriage. The second gantry has a length that extends along the first horizontal dimension. The second gantry is configured to move back and forth along the second horizontal dimension. The second carriage is configured to move back and forth along the length of the second gantry. The device also includes a flowable material deliverer coupled to the first carriage; and a flowable material depositer coupled to the second carriage.

Abstract: The present application relates to a method for pressurizing the inner flow space of an underwater flexible pipe intended for transporting hydrocarbons, comprising the following steps: a) providing a flexible pipe comprising a reinforcing layer made up of a short-pitch winding of at least one metal wire with noncontiguous turns around a thermoplastic polymer sheath defining an inner space, then b) filling the inner space of the flexible pipe with an oil, then c) increasing the inner pressure Pi of the flexible pipe to at least 10 MPa, the inner pressure being exerted by said oil, then d?) maintaining the inner pressure Pi of the flexible pipe at a pressure of at least 10 MPa for a time D of at least one minute, characterized in that said oil has a kinematic viscosity at 40° C., measured according to the ASTM D445 standard, of more than 10 mm2/s. This method makes it possible to reduce, or even prevent, the appearance of cavitation and crazing on the polymer sheath.

Abstract: A SiC wafer is produced from a single crystal SiC ingot. A focal point of a pulsed laser beam having a transmission wavelength to the ingot is set inside the ingot at a predetermined depth from a flat surface of the ingot, the predetermined depth corresponding to the thickness of the wafer to be produced. The pulsed laser beam is applied to the ingot to thereby form a separation layer for separating the wafer from the ingot. The wafer is separated from the ingot along the separation layer, and a flat surface is formed by grinding an upper surface of the ingot as a rough separation surface left after separating the wafer, thereby removing the roughness of the upper surface of the ingot to flatten the upper surface of the ingot.

Abstract: The present invention provides a method for processing a molded tray based on bamboo shavings, comprising: extracting, crushing, mixing, drying, separating by wind separation, heat balance treatment, mixing glue, paving and hot pressing, cooling and grinding, inspecting and warehousing. In the invention, the industrial trays are manufactured by bamboo materials. The bamboo materials do not include bamboo peels and other impurities. The use of bamboo materials can improve the quality of trays from raw materials and increase the strength of trays. The industrial trays made by the processing method of the present invention have increased the weight supporting capacity by at least 1.5 times compared to ordinary trays, and the product's service life is 3 to 5 years in normal uses (no water soaking, no overpressure).

Abstract: A liquid blow molding method molds a bottomed tubular-shaped preform into a liquid-containing container in which a content liquid is held. The liquid blow molding method includes: a filling step of filling a first liquid in a first pressurizing source and filling a second liquid in a second pressurizing source; and a molding step of liquid blow molding the preform by simultaneously supplying, to the preform, the first liquid pressurized to a predetermined pressure by the first pressurizing source and the second liquid pressurized to a predetermined pressure by the second pressurizing source by simultaneously operating the first pressurizing source and the second pressurizing source.

Abstract: A manufacturing method of an SiC composite substrate 10 that includes a single crystal SiC layer 12 on a polycrystalline SiC substrate 11. After manufacturing a single crystal SiC layer supporting body 14 by providing the single crystal SiC layer 12 on one surface of a holding substrate 21 including Si. A polycrystalline SiC is deposited on the single crystal SiC layer 12 through chemical vapor deposition to manufacture an SiC laminated body 15 laminated with the single crystal SiC layer 12 and the polycrystalline SiC layer 11 having a thickness t on the holding substrate 21?. At the same time, the single crystal SiC layer supporting body 14 is heated at a temperature less than 1,414 degrees Celsius, and a portion of the thickness t of the polycrystalline SiC is deposited. Then, the holding substrate 21? is physically and/or chemically removed.

Abstract: The invention relates to the field of additive manufacturing, i.e. the manufacture of three-dimensional physical objects by the successive deposition (layering) of polymer materials, and more particularly relates to 3D jet printing techniques. The present method of printing on a 3D jet printer includes the controlled displacement of a 3D printer printing head, the supply of at least two filaments of a fusible material to the printing head, the heating of the filaments by temperature-controlled heaters, the alternate activation of one of the nozzles by means of a printer control module, and the pressurized supply of a filament to the active nozzle. During switching of the nozzles, the printer control module activates a printing head displacement module, which transfers one of the nozzles into an active position. The movement of a movable platform alters the position of the nozzles relative to a valve for the nozzles, closing off the openings of the inactive nozzles and freeing the opening of the active nozzle.

Abstract: A tire comprises a tread portion 2. The tread portion 2 comprises two crown land regions 6 and two shoulder land regions 7 divided by a crown main groove 3 and a pair of shoulder main grooves 4 and 5 arranged one by one on each side of the crown main groove 3. Each of the two crown land regions 6 is provided with a plurality of sipes 15 each having a width less than 1.5 mm. The sipes 15 of each of the two crown land regions 6 include only semi-open sipes 18 each having one end connected with one of the main grooves and the other end terminating within the land region. The sipes 15 of the two crown land regions 6 are inclined in a same direction with respect to a tire axial direction.

Abstract: The present invention provides a method for processing a molded tray based on bamboo-wood mixed shavings, comprising: extracting, crushing, mixing, drying, separating by wind separation, heat balance treatment, mixing glue, paving and hot pressing, cooling and grinding, inspecting and warehousing. In the invention, the industrial trays are manufactured by mixed bamboo and wood materials. The bamboo materials do not include bamboo peels and other impurities. The use of bamboo materials can improve the quality of trays from raw materials and reduce the moisture content of the trays. In addition, the brittleness of bamboo materials can improve the hardness of trays. The combined bamboo materials and wood materials can increase the toughness of the product and reduce the cost; furthermore, each link in the production process is elaborately designed and adjusted in the invention. The industrial trays made by the processing method of the present invention have increased the weight supporting capacity by at least 1.

Abstract: A tire for an autonomous vehicle includes a pair of sidewalls that extend to a ground-engaging tread. The tread includes a plurality of hexagonally-shaped tread elements, and the tire includes an outer diameter that is at least four times larger than a width of the tread. Selected hexagonally-shaped tread elements may be formed with features to increase traction on icy roads.