Abstract:
Abstract An injection moulding apparatus (100) comprises one or more barrels (128) that form part of one or more injectors (102, 104), and a plurality of injection pathways (140, 1401) each having one or more outlets (142, 1421), the one or more injectors being operative to eject a moulding material from the one or more barrels (128) through the outlets (142, 1421) via the respective injection pathways. A process of moulding components either sequentially or simultaneously into one or more moulds is also disclosed.
Abstract:
Methods and apparatus are disclosed for binding of particulate materials to manufacture articles including continuous panels or sheets (22). Particulate feed materials arc mixed with a heat curable binder and the mixture (21) is fed to and compressed in a die (25). A radio frequency (RF) field is applied across electrodes (28, 29) between which the mixture is held compressed to inductively or dielcctrically heat and cure the binder. Prior to entering the die (25) the mixture is first fed to an intake zone (32) where the mixture is shaped into substantially the same shape as the shape of the mixture in the die so that any curing of the binder due to heating of the mixture in the intake zone (32) occurs while the mixture is in the desired final shape. Operating parameters including shape and dimensions of the intake zone, mixture advancement lengths, are disclosed.
Abstract:
Insulated pipe systems or assemblies include a particulate, composite or monolithic insulating aerogel material. Techniques for installing or manufacturing such systems or assemblies are described, as are components useful in the installation or manufacture processes.
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 including a simultaneous controlled machine direction relax.
Abstract:
The method for producing one or more decorative elements, particularly insignia (38), comprises the stages of: thermoforming a multiple-layer film (10) comprising a first transparent protective layer (12), a second decorative layer (14) containing at least one pigment and a third supporting layer (16) of thermoformable plastics material, in such a way as to form recesses (28) in the film (10); pouring into the recesses (28) a hardening resin (30) which adheres to the third layer (16) of the film (10); applying a covering sheet (32) to the third layer (16) of the film (10) so as to enclose the poured resin (30) which undergoes a hardening process; and cutting the film (10) around the recesses (28), thus producing a stratified decorative element comprising a portion of the film (10), a layer of resin (30) and a portion of the sheet (32).
Abstract:
"PROCESS FOR MANUFACTURE OF SANITARY WARE ACRYLIC PLATES, OF SYNTHETIC GRANITE, USING CAST SYSTEM, WITH OR WITHOUT ABS REINFORCEMENT", presenting an inedited process for obtaining sanitary ware - synthetic granite type acrylic, providing for the execution of two polymerization stages, the stage called first polymerization (D), is defined by a step called first mould preparation (D1); a step called mould filling (D2), where the mould is filled with the first formulation; a step called polymerization (D3) where the moulds are placed inside an autoclave, this operation obeying a thermal curve where the initial temperature is 50°C, and after one hour this temperature is increased to 120°C and maintained constant until the end of the period with a total time of five hours, and after four hours begins the cooling step (D4) of the moulds and the plates polymerized inside it, passing to a mould cooling step (D4), plate demoulding step (D5); plate grinding step (D6) where the plates are grinded; a step called particle selection (D7). The stage called second polymerization (E) presents a first step called second mould preparation (El); a step called mould filling (E2); a step called degassing (E3); a step called polymerization (E4), where they are filled with the second formulation and placed inside the autoclave, whose thermal curve presents initial temperature of 50°C, increased to 80°C and maintained for one hour, after this period the temperature is increased to a level of 120°C and maintained until the end of the period of four hours, after which begins the step of second cooling of the moulds (E5), where the moulds return to the autoclave, with a new and final polymerization; a step of final demoulding of the plates (E6).
Abstract:
Described is an improved backup board, a method for its manufacture, and particularly its use in the fabrication of printed circuit boards. The Backup boards are made of a plastic, cellulosic material and are preferably recycleabe and biodegradeable. The composite comprises (i) from about 10% to about 90% of one or more cellulosic material(s), (ii) from about 0.01% to about 50% of a thermoplastic biopolymer or natural starch, or a mixture thereof, and (iii) from about 0.01% to about 90% of a natural resin, environmental-friendly additives or other plastic polymers. The Backup boards are reported to overcome existing problems related to the drilling stages of PCB manufacture.
Abstract:
A customer sends CAD files for two or more parts (10, 30) to be molded in a family to the system (38). The system (38) provides the customer with a quotation form (46) that allows the customer to select several family-level parameters which are independent of the shape of the part (10, 30), such as material (54) and delivery date (58). The quotation also allows the customer to select several part-level parameters which are independent off the shape of the part, such as quantity (64) of each part and surface finish (66, 68). The system (38) assesses the CAD files to determine savings which can be achieved by molding the parts (10, 30) as a family, with multiple parts in the same mold block (92). If possible, the system machines cavities (98, 102) for the multiple parts (10, 30) into a single mold block (92), passing on reductions in cost to the customer both in the quote and in the final product delivery.
Abstract:
A process for forming a shaped, multilayer article comprises heating a reinforced resinous substrate to a thermoforming temperature to form a heated substrate (10) ; contacting a surface of the heated substrate (8) with a surface of shaped surface component, wherein the heated substrate has a sufficient concentration of heated resin at the surface thereof for bonding the heated substrate to the shaped surface component; and thermoforming the heated substrate at a pressure less than or equal to about 500 psi (3447 kPa) to provide a bond at an interface between the surface of the thermoformed substrate and the surface of the shaped surface component.
Abstract:
A freeze resistant filter cartridge assembly, includes a filter cartridge including a filter housing and a filter media and having at least one component selected from a list of components consisting of: the filter housing being formed of an increased elasticity polyolefin polymer having elongation and glass transition properties that allow for stretching of the housing during a freezing event rather than rupturing; a sleeve having a volume of air entrapped therein within and being disposed in the interior of the filter cartridge; and the filter housing formed of a conventional polyolefin having a wall thickness great enough to resist freeze induced expansion stresses. A method of forming a freeze resistant filter cartridge assembly is further included.