Abstract: The present disclosure is directed, in part, to method for selective thermoplastic electrophotographic process additive manufacturing, the method comprising applying a high-absorbance support material and a low-absorbance part material adjacent to one another: applying radiated energy to the high-absorbance support material and low-absorbance part material such that the high-absorbance support material selectively absorbs the radiated energy and transfers heat to the low-absorbance part material.

Abstract: The present disclosure provides for composite tank assemblies and related methods of fabrication and use. More particularly, the present disclosure provides for linerless composite tank assemblies for aircraft or fuel or the like, and related modular manufacturing methods. The present disclosure uses a multi-section manufacturing method and carbon fiber or equivalent material with epoxy or the like to fabricate the linerless composite tank assemblies (e.g., thermosetting epoxy; thermoplastic).

Abstract: A heat sink for use in electromagnetic welding of molded parts includes reinforcing fibers embedded in a matrix material, where substantially all of the reinforcing fibers are oriented unidirectionally in a fiber direction, where the reinforcing fibers have a thermal conductivity at room temperature from 100-1000 W/m.° K and an electrical resistivity at room temperature from 0.5-10??.m, and where the matrix material comprises a high temperature resistant material, optionally a thermosetting resin, having a glass transition temperature Tg above 350° C. The heat sink is used in a method of connecting surfaces of a first molded part and a second molded part by electromagnetic welding. Cooling of the outer surface of the first molded part is provided by the heat sink in direct contact with the outer surface.

Abstract: A method of heat welding a length of pipe with a coupling is disclosed. The coupling and the length of pipe are of a thermoplastic material. The method includes preparing a first end of the length of pipe; preparing a first groove of the coupling, wherein the first groove is configured to mechanically interface to an inner diameter (ID) and outer diameter (OD) of the length of pipe; heating the first and the first groove to a weldable temperature; joining the first end to the first groove; and permitting the first end and the first groove to cool sufficiently long to form a thermoplastic weld.

Abstract: A method for preparing a high-pressure gas storage tank without a liner is provided. The method includes steps of preparing a salt core liner, installing connectors, winding carbon fiber, curing carbon fiber, removing salt core, and the like. The dried salt material is used as the material for preparing the liner, and the salt material cured and formed is used as the support body which has sufficient structural strength to be capable of being wound with the carbon fiber on the outer periphery side of the salt core liner so as to ensure that a shape of the wound carbon fiber reaches an expected design purpose and to ensure the structural strength of the wound carbon fiber. The salt core is directly dissolved by water after the high-pressure gas storage tank is prepared, to obtain the carbon fiber tank without a liner structure.

Abstract: A device for forming a V-shaped full-composite pressure vessel includes a semi-cylinder body mold, where the length of a cylinder body part of the semi-cylinder body mold is half of the length of a cylinder body of a processed pressure vessel; a groove for placing a valve seat is reserved at one end of a dome part of the semi-cylinder body mold, and a fiber yarn-dividing ring is mounted at the other end; the semi-cylinder body mold is connected to the valve seat through a spline; and the valve seat and the fiber yarn-dividing ring are in threaded connection with a rotating shaft of fiber winding equipment. According to this disclosure, a liner-free pressure vessel can be manufactured completely by processing a composite material, so the mass of the pressure vessel can be reduced. Furthermore, the mold is not required to be dissolved and taken out.

Abstract: The present invention provides a method for manufacturing a high pressure tank having a reinforcing layer on an outer surface of a hollow liner, the method including: a winding process of winding a fiber bundle containing a curable resin and having a predetermined tension on the outer surface of the liner; and a reinforcing layer forming process of forming the reinforcing layer by curing the curable resin contained in the fiber bundle wound around the outer surface, in which the winding process is performed so that the tension of the fiber bundle is reduced toward an outer circumferential side of the reinforcing layer.

Abstract: A lay-up forming element includes an inner region including a fluid port. The element further includes a flexible outer surface. The element also includes a support extending between the inner region and the flexible outer surface. The roller further includes a fluid cavity extending between the inner region and the flexible outer surface. The fluid cavity is in fluid communication with the fluid port. A lay-up forming device and a method of forming a composite structure are also disclosed.

Abstract: A method of forming a composite part is described and includes connecting a layup form tool to a vacuum source; overlaying a release film on a surface of the layup form tool; engaging the vacuum source to affix the release film to the surface of the layup form tool using vacuum pressure; overlaying at least one sheet of composite material on the release film affixed to the surface of the layup form tool to form the composite part; and removing the formed composite part from the layup form tool.

Abstract: Methods and tools for forming a composite structure with a desired wrinkle configuration are disclosed herein. An example method includes shaping a composite material using a tool. In some examples, the shaping comprises forming a desired wrinkle configuration in the conformable material. An example tool for forming a composite structure includes a curved region comprising undulations in at least one portion of the curved region, the undulations configured such that when a conformable material is draped over the curved region, a desired wrinkle configuration is imparted to the conformable material.

Abstract: The present invention relates to at least one mold (2) produced by additive manufacturing method; at least one layer (3) (laminated) of resin-impregnated fabrics laid on an outer wall surface of the mold (2); at least one vacuum bag (4) which is placed to substantially cover the layer (3) and allows vacuuming; at least one furnace (5) which enables the layer (3) to be cured by heating, applies pressure to the layer (3) at a pressure value predetermined by the user, and into which the mold (2) is placed; at least one part (6) formed by curing the layers (3).

Abstract: Methods and systems for forming a composite part. The methods include providing a layup model and characterizing the specific overlap ratio (SOR) in discretized sections of the layup model. The layup model can be modified until an acceptable range of SOR values is achieved along the length of the part. Once an acceptable range of SOR values is achieved, the resulting production model is used to produce the part, for example, using an automated fiber placement (AFP) process.

Abstract: A blow forming tooling assembly includes a first tooling portion and a second tooling portion. The first tooling portion defines a gas intake orifice and a pressure chamber and is operatively coupled to a pressurized gas source for providing pressurized gas to the pressure chamber. The second tooling portion defines a part forming cavity. The first tooling portion and the second tooling portion are coupled together and a membrane is disposed therebetween. A method of using the blow forming tooling assembly for manufacturing composite material articles is also disclosed, wherein a composite material is placed within the part forming cavity, the pressurized gas compresses the membrane, and a heating element heats the blow forming tooling assembly to cure the composite material into a shape defined by the part forming cavity.

Abstract: A preparation method of a bismuth ion functional graphene agricultural film includes: mixing: adding an oil-based bismuth ion graphene material and colloidal particles to a mixer, and then stirring the oil-based bismuth ion graphene material and the colloidal particles followed by drying to obtain a mixed material for later use; granulating: adding the mixed material to an extruder, and then melting the mixed material to obtain a melted material, compounding the melted material to obtain a compounded material, extruding the compounded material followed by cooling to obtain a cooled material, and granulating the cooled material followed by drying to obtain functional masterbatches; and film blowing: adding the functional masterbatches to a film-blowing machine followed by blowing to obtain the bismuth ion functional graphene agricultural film. When applied in top films, the bismuth ion functional graphene agricultural film has a better insulation effect.

Abstract: A method for manufacturing an ophthalmic device, comprising a polishing step to polish a surface comprising at least one unpolished zone, the at least one unpolished zone is a zone intended not to be polished. The polishing step comprises covering during which a protective cover is provided on the surface so as to cover the at least one unpolished zone; polishing at least a part of the surface and removing the protective cover.

Abstract: A method of manufacturing a raw tire of one aspect of the present disclosure includes: winding a strip-shaped body on a forming drum in a circumferential direction, and overlapping and joining together respective end portions of the strip-shaped body in a winding direction so as to form a joined portion; and layering a ribbon on the strip-shaped body by winding the ribbon on the strip-shaped body in a direction in which the ribbon runs up onto a step of an end portion that is positioned at a radial direction outer side among the respective end portions configuring the joined portion.

Abstract: A method of fabricating footwear using sacrificial molds that are produced using additive manufacturing. A sacrificial mold for an article of footwear is manufactured from a soluble material by an additive manufacturing process. The article of footwear is then fashioned from the sacrificial mold by introducing an expandable foam into a cavity in the mold, allowing the foam to cure within the mold, and then removing the mold by exposing it to a solvent until dissolved. One or more design elements and/or rigid inserts may be introduced into areas of the mold, for example during manufacture of the mold or during fashioning of the article of footwear. For example, the manufacturing of the sacrificial mold may be temporarily paused during the manufacturing process for addition of the one or more design elements into a semi-completed mold.

Abstract: A rotary device including a bridge attached to a frame of the rotary device, and a truck disposed adjacent to the bridge and configured to support at least two block assemblies thereof, wherein the at least two block assemblies are configured to be moveable with respect to each other. The truck includes a shaft such that the at least two block assemblies slide on the shaft and locks in place at different locations along the shaft, wherein a downward force is applied against a top portion of the at least two block assemblies to apply pressure against a topmost roller of the plurality of rollers.

Abstract: A box former may include a carton blank dispensing device that holds a carton blank and carton moving devices that move the carton blank from the carton blank dispensing device and positions it between a plunger and a forming well. The forming well may include a floor, one or more walls, and an opening. The plunger may be configured to move between a retracted position and one or more extended positions, the plunger contacting a top surface of the carton blank and pushing the carton blank into the forming well through the opening of the forming well. In some implementations, the box former may include forming guides that contact points on a bottom surface of the carton blank when it is pushed by the plunger to cause the carton blank to fold into a formed carton.

Abstract: A forming unit for a packaging machine comprises a conveyor for a flexible packaging material along a conveying direction; a forming assembly activatable on the flexible packaging material, and configured to shape it along a forming direction transverse to said conveying direction to form a package; an adjustment associated with the forming assembly and configured to move it nearer and/or farther away along the forming direction, so as to adjust a transversal dimension of the package.

Abstract: Apparatus (10) for automatically producing tubular elements (100) to make smoking articles and/or products for food use, comprising at least one forming unit (12) configured to form the tubular elements (100) starting from shaped flat sheets (101). The forming unit (12) comprises one or more forming devices (29) which are moved by movement means (30) along a work path (PL) closed in a loop, in order to form the tubular elements (100).

Abstract: The present invention discloses a method of producing at least a pair of interlocking adjacent layers of a paper packaging product, the pair of interlocking adjacent layers being formed of a sheet of slit paper having a slit pattern, the slit pattern upon expansion, forming cells that include land regions that are inclined with respect to a plane of an unexpanded sheet. The method comprises slitting the sheet of slit paper with beveled blades that have a first wedge angle on one side of the blades and a second wedge angle on the other side of the blades, wherein the first wedge angle is wider than the second wedge angle to produce slits that upon expansion, produce the lands regions that have angles of inclination in a range for 50 to 85 degrees.

Abstract: The invention relates to an apparatus (100) and method for dry manufacturing rigid cellulose products having essentially non-flat general shape. The apparatus (100) comprises a disintegrating unit (3), a multi-stage cellulose blank forming unit (30) and a product forming unit (40) for producing rigid cellulose products (14).

Abstract: Transition of variable thicknesses of composite material laminates of a modular blade when the thickness varies by 50-400% and which smooths the centroid distribution, the centroid being represented as a function of the thickness and material of the laminate with respect to the corresponding radius of the blade. For this purpose, a non-structural material (10) is incorporated disposed on the lower part corresponding to the face of a mould (5) or the aerodynamic surface (11) is modified.

Abstract: Multiple layer interlayers having enhanced optical and acoustic properties are provided, along with methods of making and using the same. Interlayers as described herein may include at least two outer skin layers and an inner core layer, with one of the outer skin layers having a different thickness than the other at one or more locations along the interlayer. The multi-layer interlayer may also exhibit acoustic properties and, in some cases, may have an overall wedged thickness profile. Additionally, in some aspects, interlayers and laminates formed therefrom may also provide reduced infrared energy transmission, without sacrificing acoustic and/or optical performance.

Abstract: A microporous membrane is made by a dry-stretch process and has substantially round shaped pores and a ratio of machine direction tensile strength to transverse direction tensile strength in the range of 0.5 to 5.0. The method of making the foregoing microporous membrane includes the steps of: extruding a polymer into a nonporous precursor, and biaxially stretching the nonporous precursor, the biaxial stretching including a machine direction stretching and a transverse direction stretching, the transverse direction stretching including a simultaneous controlled machine direction relax.

Abstract: The present invention provides a self-adhesive cork wallpaper, comprising a cork layer, wherein the bottom of the cork layer is bonded with a radiance layer via a glue layer, the bottom of the radiance layer is bonded with a base paper layer, the bottom of the base paper layer is painted with a self-adhesive layer, and the bottom of the self-adhesive layer is bonded with a release paper layer, wherein the cork layer of the self-adhesive cork wallpaper imparts a unique texture to the wallpaper, and brings about a distinctive wall surface decoration effect via tactile sensation and visual effect; and the natural texture of the cork material imparts a natural aesthetic feeling to the wallpaper, and increases the warmth and comfort of an indoor space.

Abstract: Disclosed herein are embodiments of a laminate preform. The laminate preform includes a first glass ply having a first major surface and a second major surface. The second major surface is opposite to the first major surface. A thickness of the first glass ply is defined between the first major surface and the second major surface. The thickness is 2 mm or less. The laminate preform also includes an adhesive region having a third major surface and a fourth major surface. The third major surface is disposed on the second major surface of the first glass ply. The third major surface of the adhesive region includes at least a portion of area not bonded to the second major surface so that air can flow between the third major surface and the second major surface.

Abstract: Described are energy-efficient signal-transparent window assemblies and methods of fabricating thereof. These assemblies remain IR-blocking properties while allowing signal penetration and remain substantially transparent within the visible spectrum with no features detectable to the naked eye. This performance is achieved by isolating conductive layers into discrete cells via gap patterning. The second coating stack's line widths are at least 0.4 micrometer greater than the gaps among the primary stacks. The thickness of the primary stack increases from zero to full thickness near the gap, with a sidewall transition length exceeding 0.2 micrometers. The fabrication process involves lithography for patterning, PVD coating, and post-clean and high-temperature treatments. In some examples, a transparent organic thin layer is provided between the second coating stack and the primary stack or the substrate.

Abstract: A polypropylene-based outsole material, which includes, based on 100 wt % of the polypropylene-based outsole material, a polypropylene homopolymer present in an amount ranging from 5 wt % to 25 wt %, a thermoplastic polypropylene copolymer present in an amount ranging from 70 wt % to 87 wt %, and a modifier present in an amount greater than 0 wt % and not greater than 10 wt %. The modifier is a maleic anhydride-grafted polyolefin elastomer. A footwear sole structure including an outsole made of the polypropylene-based outsole material, and a footwear article including the footwear sole structure are also provided.

Abstract: An oriented film having a combination of polyolefin and polyamide layers. The film is low shrink and can be monoaxially or biaxially oriented. The polyolefin layer is positioned between two polyamide layers. A tie resin layer may be included between the polyolefin layer and either or both of the polyamide layers. A barrier layer, such as one formed from ethylene vinyl alcohol, may be positioned inside of the polyamide layers. The polyolefin layer may additionally incorporate a polyamide. The overall composition of the oriented film is selected so that the polyamide content is minimized enough that the film may be recycled in current polyethylene recycling streams.

Abstract: One aspect of the present invention provides a synthetic wood including a core portion and a skin portion disposed on at least a portion of a surface of the core portion, wherein the core portion includes a first polymer resin and a filler, the skin portion includes a second polymer resin and photocatalytic particles, a surface of the skin portion includes a wood pattern formed by an uneven structure including protrusions, and the content of the photocatalytic particles in the protrusions ranges from 5 to 30 wt %, and a method for manufacturing the synthetic wood.

Abstract: Provided are a film having a plane A consisting of a composition A and a plane B consisting of a composition B as two imaginary planes perpendicular to a thickness direction, in which a content of at least one component A contained in the composition A is decreased from the plane A toward the plane B, a content of at least one component B contained in the composition B is decreased from the plane B toward the plane A, and a dielectric loss tangent is 0.010 or less, and an application thereof.

Abstract: A TPO roofing membrane formulated to have enhanced induction welding properties, including: a TPO roofing membrane, with: a top TPO layer, a middle scrim layer, and a bottom TPO layer; and elastomeric additives added to the TPO membrane, wherein the elastomeric additives increase induction welding performance of the TPO membrane, and wherein elastomeric additives include polypropylene-based (C3) elastomers and polyethylene-based (C2) elastomers.

Abstract: Provided are a film including a layer A; and a layer B disposed on at least one surface of the layer A, in which a ratio of an clastic modulus EB of the layer B at 160° C. to an elastic modulus EA of the layer A at 160° C. is 1.0×10?6 or more, and a dielectric loss tangent is 0.005 or less.

Abstract: The present disclosure discloses a device for detaching a textile from a printing plate, in particular in the case of direct printing and/or screen printing using a plurality of colours, comprising a lifting device which comprises a gripper for gripping a first end of the textile, and a first movement axis for lifting the gripper; and a detachment slider, which can be inserted, via a second movement axis, between the printing plate and the first end of the textile, lifted by the lifting device, in order to detach the textile from the printing plate.

Abstract: According to one embodiment, an inkjet head driving circuit includes a waveform pattern generation unit configured to generate a waveform pattern based on input data and a driving waveform generation unit configured to generate a driving waveform for driving an actuator of an inkjet head based on the generated waveform pattern. The driving waveform generation unit includes a power source configured to supply a driving voltage for the actuator, a plurality of switch elements for connecting the power source to the actuator, and a driving waveform output unit that outputs the driving waveform to the actuator by switching of the plurality of switch elements based on the waveform pattern. The waveform pattern changes the number of switch elements that are turned on in a section of the driving waveform within one cycle of the driving waveform for causing the actuator to eject an ink droplet.

Abstract: A head unit includes: an ejection unit that includes a piezoelectric element driven by a drive signal and that ejects a liquid; a waveform shaping circuit to which a first residual vibration signal corresponding to a residual vibration caused by the drive signal is input, and which outputs a second residual vibration signal; a temperature detection circuit that outputs a temperature information signal; and a determination circuit, wherein the waveform shaping circuit includes an amplifier circuit that amplifies the first residual vibration signal and a gain setting circuit, and outputs the second residual vibration signal based on a signal amplified by the amplifier circuit, the amplifier circuit and the gain setting circuit are configured as a single semiconductor device, and the determination circuit determines a state of the ejection unit based on the second residual vibration signal and the temperature information signal.

Abstract: A piezoelectric element driving circuit includes: a power supply including a positive electrode outputting a positive voltage and a negative electrode outputting a negative voltage; first and third switching elements including input terminals connected to the positive electrode; second and fourth switching elements including input terminals connected to the negative electrode; a first resistor connecting an output terminal of the first switching element and a first end of the piezoelectric element; a second resistor connecting the first end and an output terminal of the second switching element; a third resistor connecting an output terminal of the third switching element and a second end of the piezoelectric element; a fourth resistor connecting the second end and an output terminal of the fourth switching element, and a controller supplying a first control signal to the first and second switching elements and a second control signal to the third and fourth switching elements.

Abstract: Termination resistors are connected to second signal lines, respectively. A plurality of piezoelectric elements are respectively supplied with a plurality of drive signals corresponding to a plurality of control signals received by a plurality of receiving circuits. In a control device, a test voltage is supplied to a plurality of test resistors from a test voltage output circuit, and the plurality of test resistors, together with the termination resistors, respectively constitute a plurality of voltage dividing circuits. A divided voltage detection circuit detects an output voltage of each voltage dividing circuit. A control circuit controls an operating voltage output circuit, a plurality of control signal output circuits, and a test voltage output circuit so as to be in a test state, and determines whether an electrical connection state is normal or abnormal depending on a detection result of the divided voltage detection circuit in the test state.

Abstract: A drive device includes a drive circuit to output a drive signal that is to be applied to an actuator of a liquid ejection head for ejecting liquid droplets. The drive signal includes an adjustment ejection waveform portion that includes a first portion having an expansion pulse that decreases pressure in a pressure chamber of the actuator and a second portion having a contraction pulse that increases pressure in the pressure chamber. The contraction pulse includes voltage increase changes that change the voltage applied to the actuator stepwise and a return pulse that is between a pair of voltage increase changes. The return pulse changes from a first voltage level that is less than a maximum voltage level of the contraction pulse to a second voltage level that is greater than a minimum voltage level of the expansion pulse.

Abstract: A head unit include an ejection unit for ejecting a liquid, a waveform shaping circuit to which a first residual vibration signal corresponding to a residual vibration is input, and which outputs a second residual vibration signal, and a determination circuit, wherein an amplifier circuit provided to the waveform shaping circuit outputs an offset voltage signal in a first state in which a first constant voltage signal is input to a first input terminal and a second constant voltage signal is input to a second input terminal, and outputs the second residual vibration signal in a second state in which the first residual vibration signal is input to the first input terminal, and the second constant voltage signal is input to the second input terminal, and the determination circuit determines the state of the ejection unit based on the second residual vibration signal and an offset value.

Abstract: A method of inkjet printing includes applying a driving signal to a head through a controller, the head including nozzles, driving the head in response to the driving signal, and applying a first control signal that changes a driving waveform of the driving signal to the head through the controller.

Abstract: A liquid ejecting head includes nozzles and a feed channel through which an inlet communicates with an outlet. The feed channel is provided with a stirrer including a first-rib and a second-rib facing each other. The stirrer in a cross section perpendicular to a direction in which the stirrer extends includes a first-region where the first-rib is disposed and a second-region where the second-rib is disposed. The first-rib has a first-guide face by which a flow of the liquid in the first-region is guided into the second-region. The second-rib has a second-guide face by which a flow of the liquid in the second-region is guided into the first-region. A first-tip of the first-guide face and a second-tip of the second-guide face intersect each other when viewed in a direction in which the first-region and the second-region are aligned.

Abstract: A liquid ejection head with multiple ejection ports arrayed includes: a first substrate having energy generation elements in one surface and first supply ports passing through the first substrate from the one surface to the other surface; and a second substrate which is bonded to the first substrate in a stack direction with an adhesive and which includes second supply ports communicating with the first supply ports and passing through the second substrate from the bonded surface to the other surface. Each first supply port includes a first opening in the bonded surface. Each second supply port includes a second opening in the bonded surface. In at least one direction out of an array direction of the ejection ports and a direction orthogonal to the array direction, a width W1 of the first opening and a width W2 of the second opening satisfy W1>W2.

Abstract: A liquid ejection head comprises a liquid ejection substrate for ejecting a liquid, wherein the liquid ejection substrate includes a flow passage forming substrate and a support substrate which is bonded to the flow passage forming substrate via an adhesive, the flow passage forming substrate includes a common flow channel which communicates with a flow passage formed in the support substrate and an individual flow channel which communicates with the common flow channel, and among a corner portion of an end portion of the common flow channel, an angle of the corner portion which is closest to the individual flow channel is larger than 90°.

Abstract: A technology capable of accurately obtaining a calibration value for calibrating a detected temperature from a temperature sensor installed in a print head is to be provided. A printing apparatus includes: a printing unit configured to perform printing onto a print medium; a supply unit configured to supply ink to the printing unit; a first detection unit configured to detect a temperature of the ink to be supplied to the printing unit; a second detection unit configured to detect a temperature of the printing unit; and an obtainment unit configured to obtain a calibration value based on a value obtained by subtracting a second detected temperature from the second detection unit from a first detected temperature from the first detection unit of the ink upstream of the printing unit, the calibration value being obtained for calibrating the second detected temperature.

Abstract: A laminated substrate includes a silicon substrate, and a silicon oxide film laminated to the silicon substrate, wherein the silicon oxide film has a through hole penetrating in a thickness direction, wherein the silicon substrate has a hole communicating with the through hole, wherein the hole includes a first portion adjacent to the through hole and a second portion adjacent to the first portion on an opposite side of the through hole, wherein the first portion includes a plurality of first recesses whose width changes cyclically in the thickness direction, wherein the second portion includes a plurality of second recesses whose width changes cyclically in the thickness direction, and wherein a maximum value of the width of the first recesses is smaller than a maximum value of the width of the second recesses.

Abstract: Provided is a liquid ejection head comprising a base plate and at least two device chips in which ejection ports for ejecting a liquid are formed and which are disposed on the base plate. At least one first reference mark is provided on the base plate. A second reference mark is provided on each of the device chips. At least one space is formed between adjacent ones of the device chips. The second reference marks and the first reference mark present in the space are disposed on an array axis along which the device chips are arrayed.

Abstract: A laminated substrate includes a silicon substrate, and a silicon compound film stacked on the silicon substrate, wherein the silicon compound film has a through hole, wherein the silicon substrate has a hole communicating with the through hole, and wherein a diameter of the hole is smaller at least at a portion in a depth direction of the hole than a diameter of the through hole on a surface in contact with the silicon substrate.