Patent classifications
B29C2043/563
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.
Equipment for the production of slabs in mineral grits bound with resins
The equipment for the production of slabs in mineral grits bound with resins, comprises: a support frame, at least one lower plate, locked together with the frame, comprising at least one positioning zone for at least one mold having at least one forming cavity, open at the top, to contain a mix comprising the materials necessary to obtain the slabs, at least one pressing assembly comprising an upper plate movable, with respect to the frame, from an upper position of loading/unloading the mold in/from the positioning zone, to a lower position of pressing the mix inside said forming cavity, vibrating means associated at least with the lower plate, and an airtight chamber, communicating with suction means, adapted to reduce the pressure to a value lower than the atmospheric pressure, containing the mold, where the chamber is interposed between the lower plate and an upper closing element opposite the lower plate.
DETERMINATION METHOD, IMPRINT METHOD, IMPRINT APPARATUS, ARTICLE MANUFACTURING METHOD AND NON-TRANSITORY STORAGE MEDIUM
The present invention provides a determination method of determining a drop pattern indicating a layout of droplets of an imprint material to be arranged on a substrate and used in an imprint apparatus which forms a pattern of the imprint material on the substrate by using a mold, the method including obtaining a contact start position at which the mold comes first into contact with the imprint material in a partial shot region on the substrate based on a posture of the mold, and determining a drop pattern in the partial shot region so as to arrange droplets of the imprint material at a plurality of positions respectively located along a plurality of different radiation directions from the contact start position, with the obtained contact start position serving as a starting point.
Molding method and molding system for resin molded member
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).
Engineered stone and manufacturing method thereof
An engineered stone includes a light transmitting mother material (I) and a phosphorescent chip (II). The light transmitting mother material (I) includes about 7 wt % to about 12 wt % of an unsaturated polyester resin (A), about 88 wt % to about 93 wt % of a silica-containing compound (B) and about 0.01 part by weight to about 1 part by weight of an organic/inorganic pigment (C) based on about 100 parts by weight of the unsaturated polyester resin (A). The phosphorescent chip (II) includes about 8 wt % to about 15 wt % of an unsaturated polyester resin (A), about 85 wt % to about 92 wt % of a silica-containing compound (B) and about 2 parts by weight to about 10 parts by weight of a phosphorescent pigment (D) based on about 100 parts by weight of the unsaturated polyester resin (A).
IMPROVED PULP DISPOSABLE TRAY
The present invention solves the above mentioned technical problems by providing a three dimensional molded shape suitable for use in the fabrication of a food tray, the molded shape comprising a molded pulp portion with side walls and a bottom wall comprising virgin or recycled cellulose fibers and a film laminate portion comprising a polyester film with an amorphous polyester heat seal layer.
Vacuum compression molding
There is provided an apparatus for molding a thermoplastic material into a homogenous sample body having a predetermined shape, the apparatus comprising: (a) a main body (110) comprising a first opening (112), a second opening and a hollow bore (116) connecting the first opening (112) with the second opening, the hollow bore (116) being adapted to receive a separation foil shaped to cover at least a part of the hollow bore surface; (b) a piston (120) adapted to fit moveably into the hollow bore (116) containing the separation foil; (c) a base plate (130) comprising a protrusion, wherein the base plate (130) is adapted to be inserted into the first opening (112) in such a manner that the protrusion extends into a part of the hollow bore (116) containing the separation foil, and wherein the base plate (130) is adapted to transfer heat from a heating unit to a thermoplastic material (150) resting on the protrusion (132); (d) a vacuum connector (142) adapted to be connected to a vacuum source; (e) a lid (140) adapted to fit moveably into the second opening and adapted to apply a force to the piston (120) when the vacuum connector (142) is connected to the vacuum source such that the piston (120) applies a compressing force to the thermoplastic material (150) resting on the protrusion. There are further provided a method and a system for molding a thermoplastic material into a homogenous sample body having a predetermined shape.
High-temperature hot-pressing molding machine
A high-temperature hot-pressing molding machine includes a mold unit, a heating, unit disposed to heat the mold unit, a heat insulating unit including a surrounding insulating member to enclose the mold unit and two insulating layers disposed on two opposite sides of the mold unit to obstruct heat radiation and conduction from the mold unit, a heat dissipating unit disposed on the insulating layers, a cooling unit disposed on the heat dissipating unit, and a vacuum unit disposed to form a vacuum space. Under a vacuum environment, with the heat insulating unit defining a heat zone containing the mold unit, other component parts adjacent to the heat zone can be prevented from damage in a high temperature operation.
Method of making a trimmed, laminated trim component
A method of making a trimmed, laminated trim component is provided. A heated plastic composite sheet is pressed against a heated laminated sheet to bond a plastic cushioning layer of the laminated sheet to the plastic composite sheet. The step of pressing compresses a portion of the laminated sheet spaced inwardly from an outer periphery of the laminated sheet to locally compact and thin the cushioning layer at the portion to form a compressed portion of the cushioning layer. Unwanted portions of the laminated sheet are trimmed.
EQUIPMENT FOR THE PRODUCTION OF SLABS IN MINERAL GRITS BOUND WITH RESINS
The equipment for the production of slabs in mineral grits bound with resins, comprises: a support frame, at least one lower plate, locked together with the frame, comprising at least one positioning zone for at least one mold having at least one forming cavity, open at the top, to contain a mix comprising the materials necessary to obtain the slabs, at least one pressing assembly comprising an upper plate movable, with respect to the frame, from an upper position of loading/unloading the mold in/from the positioning zone, to a lower position of pressing the mix inside said forming cavity, vibrating means associated at least with the lower plate, and an airtight chamber, communicating with suction means, adapted to reduce the pressure to a value lower than the atmospheric pressure, containing the mold, where the chamber is interposed between the lower plate and an upper closing element opposite the lower plate.