B29C2043/3488

METHODS OF MANUFACTURING FORMALDEHYDE-FREE MOLDED PRODUCTS AND RELATED PARTS
20230013214 · 2023-01-19 ·

The present invention provides a moldable mixture containing large portion of agricultural fibers and small portion of a binding agent and a flow-promoting filler material. The moldable mixture is substantially free of formaldehyde, with low moisture content and high draw ratio. The present invention also provides methods of manufacturing molded products and related parts, based on the claimed moldable mixture. Molded products (830) and related parts such as runner (810) and plank (820) with light weight, high density and more complex profile are manufactured by the claimed methods including steps of providing required materials for a moldable mixture, mixing the provided materials to form a moldable mixture, shaking the moldable mixture in preparing for compression molding and compression molding the moldable mixture to form molded products and related parts.

Method for producing sealed structure
11660788 · 2023-05-30 · ·

A method of producing a sealed structure, the method including: preparing a substrate and a curable resin composition in a liquid form; and sealing the substrate with the curable resin composition, to form a sealed body including the substrate and a cured product of the curable resin composition. The sealing step includes: printing the curable resin composition onto the substrate, to cover the substrate with a first coating film of the curable resin composition; and compression-molding the first coating film and the substrate together using a mold, with a pressing surface of the mold abut against the first coating film, to convert the first coating film into a second coating film. A ratio of a projected area S1 of the first coating film onto the substrate to a projected area S2 of the second coating film onto the substrate: S1/S2 is 0.9 or more.

WEDGE FILLER PREFORM

A filler preform in a wedge form includes reinforcing fiber bundles consisting of reinforcing fiber filaments, wherein the filaments are directed parallel to each other within the fiber bundle, wherein the fiber bundle contains a first resin composition in a concentration in the range from 1 to 10 wt. % relative to the fiber weight, wherein the fiber bundles have a length in the range from 2 to 20 mm and at least 60% of the fiber bundles are reversibly fixed in a curved form within the wedge filler preform whereby flanks of the curved fiber bundles create an opening angle of less than 120° and the opening angle of the curved fiber bundles relates with an opening angle of the wedge form of the wedge filler preform. A method for producing the wedge filler preform and a method for producing a reinforcing fiber composite include a filler perform.

SENSOR SYSTEM FOR DRY POWDER ELECTRODE FORMATION AND METHODS OF USING THE SAME
20230273061 · 2023-08-31 ·

Systems and methods of providing powder are disclosed. A system includes a powder hopper, one or more sensors, a feeder hopper and a processor in operable communication with the one or more sensors and the feeder hopper. The powder hopper is configured to provide a powder to a pair of rollers. Each of the one or more sensors is configured to determine a characteristic of the powder in the powder hopper. The feeder hopper is configured to provide the powder to the powder hopper. The processor is configured to cause the feeder hopper to provide the powder to the powder hopper in response to the characteristic of the powder in the powder hopper being less than a threshold.

RESIN SUPPLY APPARATUS, RESIN SEALING APPARATUS, AND METHOD FOR MANUFACTURING RESIN-SEALED PRODUCT

A resin supply apparatus includes a calculation unit for calculating a resin supply pattern based on the shape of a cavity of a resin sealing mold, and a supply unit for supplying a resin to an object to be coated along the resin supply pattern. The resin supply pattern has a plurality of linear paths, and one of mutually adjacent linear paths is inclined with respect to an axis of symmetry that divides a cavity in line symmetry, the other one of the mutually adjacent linear paths is inclined with respect to the one linear path, and a region between the mutually adjacent linear paths is opened to the outside of the object to be coated, at least on a side on which the other linear path is separated from the one linear path.

APPARATUS AND METHOD FOR FORMING A CONCAVE OBJECT
20220016823 · 2022-01-20 ·

A method comprises the following steps: providing a pre-processed element made of at least one polymeric material, introducing the pre-processed element in a female mould part having a forming cavity, shaping the pre-processed element between the female mould part and a male mould part, the female mould part and the male mould part being movable relative to one another along a moulding direction so as to form a concave object from the pre-processed element.

The forming cavity has a transversal dimension measured transversely relative to the moulding direction, the forming cavity further having a transition zone in which the transversal dimension passes from a larger value to a smaller value, the forming cavity further having a bottom.

During the introducing step, the pre-processed element is placed on the transition zone, so that the pre-processed element rests on the transition zone at a distance from the bottom of the forming cavity.

MULTI-STAGE PRESSING PROCESS FOR PRODUCING A MOLDED PART SUCH AS A BIPOLAR PLATE FROM A HIGHLY FILLED THERMOSETTING MATERIAL

A process for producing a molded part from a highly filled thermosetting starting material including: introducing the starting material into a prepressing tool; producing a preform from the starting material, the starting material being brought to a prepressing temperature by the prepressing tool and being compressed with a prepressing force to form the preform; removing the preform from the prepressing tool and introducing the preform into a finish pressing tool; and producing a finished part from the preform, the preform being brought to a finish pressing temperature by the finish pressing tool and being compressed with a finish pressing force to form the finished part. Here, the prepressing temperature is lower than the finish pressing temperature and the finish pressing temperature is at least as high as an onset temperature of a curing reaction of the starting material.

Apparatus and method for forming a concave object

A method comprises the following steps: providing a pre-processed element made of at least one polymeric material, introducing the pre-processed element in a female mould part having a forming cavity, shaping the pre-processed element between the female mould part and a male mould part, the female mould part and the male mould part being movable relative to one another along a moulding direction so as to form a concave object from the pre-processed element. The forming cavity has a transversal dimension measured transversely relative to the moulding direction, the forming cavity further having a transition zone in which the transversal dimension passes from a larger value to a smaller value, the forming cavity further having a bottom. During the introducing step, the pre-processed element is placed on the transition zone, so that the pre-processed element rests on the transition zone at a distance from the bottom of the forming cavity.

METHOD AND APPARATUS FOR PRODUCING A DISPENSING PART OF A CONTAINER, AND DISPENSING PART OF A CONTAINER
20220212388 · 2022-07-07 ·

A method comprises in sequence the steps of: dispensing a continuous polymeric extrudate in a molten state; separating from the continuous extrudate a dose substantially having the shape of a parallelepiped, the dose having a separation surface at which the dose has been separated from the continuous extrudate, the dose further having a face adjacent to the separation surface; conveying the dose towards a mould comprising a first mould part and a second mould part; shaping the dose in the mould by moving the first mould part and the second mould part one towards the other in a moulding direction arranged transversally to said face, thereby obtaining a dispensing part of a container.

The dispensing part comprises: an edge zone suitable for being joined to a container body; a neck surrounding a passage through which a product contained in the container can be dispensed; a membrane which closes the passage, the passage being intended to be opened after the shaping step, so that said product can flow out.

Method of reducing knit line during compression molding of carbon fiber SMC for complex 3D structural application

A structural automotive sub frame component (10) that is formed from a sheet molding compound having carbon fibers. The three dimensional structure is formed of a resin fiber mixture having a resin material infused with carbon fibers having a length of about 12.5 mm (0.5 inches) dispersed throughout the structural automotive sub frame component (10) and an even manner such that there are no resin rich areas or knit lines present. The absence of knit lines provides a structural automotive sub frame component (10) that has a high degree of flex modulus, tensile strength properties well also providing a greater breaking load property due to the absence of knit lines.