摘要:
A continuous process for making a flexible porous dissolvable solid structure with open celled foam. The continuous process has the steps of preparing a pre-mixture comprising surfactant, polymer, water, and optionally plasticizer; aerating the pre-mixture to form a wet aerated pre-mixture; extruding the wet aerated pre-mixture to form one or more sheets on a belt; and drying the sheets to form an Article having an open celled foam.
摘要:
An assembly and process for forming a two stage extrusion of an elongated marine dock from a plasticized material, such as including but act limited to extruding a first generally “L” shaped bracket from a first more rigid thermoplastic, following which a cross head die arrangement is utilized in order to extrude a secondary arcuate and flexible material in extending fashion from a lower side of the “L” bracket. The secondary/flexible elastomer is extracted in an open flexed position relative to the first extruded bracket, and further such that, following completion, can be flexed into a closed engagement with an upper perpendicularly extending side of the bracket.
摘要:
An assembly and process for forming a two stage extruded pipe having a central inner sleeve and a pair of outer attached lobes. The central sleeve shaped (also termed a grout receiving tube) is produced in an initial extrusion operation, following which it enters a cross head operation where a pair of outer lobes are attached to cross sectional exterior surface locations according to a second stage extrusion operation so as to be integrally formed therewith. Other steps include cooling of the dual stage extruded pipe, as well as sectioning and stacking the pipe. Additional steps include forming elongated slots or apertures into the central sleeve portion of the finished extrusion, such in non-interfering fashion with the individual passageway defining and lobes.
摘要:
Swimming pool coping made of recycled rubber can replace traditional concrete copings. The rubber chips can be mixed with a binder placed in an extrusion machine that pressurizes and heats the mixture to activate the binder. Alternatively, the rubber chips and binder can be placed in a compression mold where the rubber chips are compressed and heated to activate the binder.The rubber coping can then be removed from the extrusion machine or compression mold. The coping is then cooled which hardens and strengthens the coping. The hardened rubber coping is then cut to a predetermined length and shape. The coping can be adhered to the bond beam of the swimming pool and the adjacent coping. A sealer can be applied to the exposed surfaces of the coping to provide color, texture and provide UV protection.
摘要:
Substrate containers formed from improved compositions comprise a polymer and carbon nanotubes to provide enhanced characteristics. In some embodiments, the carbon fibers, e.g., nanotubes, can be mechanically blended or incorporated into the polymer, while in some embodiments carbon nanotubes also may be covalently bonded to the polymer to form corresponding covalent materials. In particular, the polymer can be covalently bonded to the side walls of the carbon nanotubes to form a composite with particularly desirable mechanical properties. The processing of the nanotubes can be facilitated by the dispersion of the nanotubes in an aqueous solution comprising a hydrophylic polymer, such as ethyl vinyl acetate. A dispersion of nanotubes can be combined with a polymer in an extrusion process to blend the materials under high shear, such as in an extruder.
摘要:
Method and apparatus for applying ultrasonic energy to a variety of manufacturing processes, particularly for producing an extrudate product from an extruder wherein one or more ultrasonic transducers are utilized to uniformly ultrasonically vibrate at least a portion of an extruder assembly.
摘要:
Method and apparatus for removing bubbles from a molten substrate. The molten substrate from a furnace passes through a downtube to reach additional manufacturing tools, such as an extrusion bushing. One or more ultrasonic sensors are arranged along the downtube. The ultrasonic sensor(s) transmit ultrasonic energy into the molten substrate and measure a characteristic of the ultrasonic energy, such as a propagation time for the ultrasonic energy to be reflected back to the ultrasonic sensor(s). A bubble is detected when a change in the characteristic of the ultrasonic energy is detected. When a bubble is detected, flow through the downtube is diverted to a duct to remove a slug of molten substrate that includes the bubble.
摘要:
Swimming pool coping made of recycled rubber can replace traditional concrete copings. The rubber chips can be mixed with a binder placed in an extrusion machine that pressurizes and heats the mixture to activate the binder. Alternatively, the rubber chips and binder can be placed in a compression mold where the rubber chips are compressed and heated to activate the binder. The rubber coping can then be removed from the extrusion machine or compression mold. The coping is then cooled which hardens and strengthens the coping. The hardened rubber coping is then cut to a predetermined length and shape. The coping can be adhered to the bond beam of the swimming pool and the adjacent coping. A sealer can be applied to the exposed surfaces of the coping to provide color, texture and provide UV protection.
摘要:
There is here disclosed a technique which can improve mechanical properties such as strength and impact resistance of molded articles without noticeably changing molding materials and rebuilding a molding apparatus. In a molding method in which the molding materials are fed to a mold disposed at one end of a cylinder while the molding materials in the cylinder are molten and kneaded, the molding materials can be molded while vibration is applied to the molding materials in a direction crossing a flow direction of the resin material at right angles. The vibration does not have to possess any node portion on a surface which contacts the molding material.
摘要:
An isolator mount for the active dissipation of shocks and vibrations is presented. The invention includes at least one energy dissipating layer and deflectable elements so as to provide soft damping for small disturbance excitations, yet remaining sufficiently stiff to mitigate large shocks. The mount transfers mechanical energy to the dissipating layers via the device structure. Dissipating layers convert shock and vibration energies to either heat or magnetic energy.