摘要:
An apparatus includes a first mold having an injection cavity at a side thereof, for molding of a substrate, a second mold having two injection cores and two skin shaping plugs, and a third mold having a foaming section where a foaming material is injected between a substrate and a skin, and a skin shaping section where embossing is carried out on a skin, wherein, under the condition that the first mold, second mold and third mold are simultaneously closed to one another, a substrate is molded by the injection cavity and a first injection core, embossing is carried out on a skin by one skin shaping plug and the skin shaping section, and, at a same time, the foaming material is injected between a previously molded substrate and a previously embossed skin by a second injection core and foaming section.
摘要:
An object of the invention is to provide a blow-molded foam which has homogeneous foamed cells in size, is light in weight, and is excellent in surface smoothness, and a process for producing the same. The invention is directed to a blow-molded foam 1 having a wall portion formed in such a manner that a thermoplastic resin containing a foaming agent mixed therewith is subjected to blow molding. Herein, the wall portion has a closed cell structure in which a plurality of foamed cells are contained. The wall portion has an expansion ratio of not less than 2.0 times. The wall portion has an outer face having a center-line average surface roughness Ra of less than 9.0 μm. The foamed cell has a cell diameter having a standard deviation of less than 40 μm in a thickness direction of the wall portion.
摘要:
An acoustic panel for indoor use, where the panel is a molded synthetic foam and is designed to absorb sound waves. The acoustic panel can take the form of a barrier, partition, or screen, and can mimic the effect that soft furnishings would normally have. The acoustic panel can be designed to absorb unwanted noise.
摘要:
A polyurethane foam handle includes: a polyurethane foam having the shape and size of the handle; a coating layer formed on the surface of the polyurethane foam; and an additive disposed inside the coating layer, in which the additive is cork powder, white clay, yellow soil, a coloring matter, shellfish powder, metal powder, shiny powder, or a compound of them. The foam handle solves the problems due to using EVA or cork to make a handle and to achieve a polyurethane foam handle over the defects of polyurethane foam.
摘要:
Provided is a method for manufacturing an individually tailored lingual orthodontic bracket comprising: fabricating a set-up model by cutting individual teeth from a malocclusion model that is modeled on the patient and rearranging the individual teeth in an ideal position; replicating the set-up model; performing pin work on the replicated set-up model and expanding the base of the bracket using a resin in accordance with the surface of teeth; locating the bracket on the base expanded using the resin; preparing casting by forming an ingate on the base expanded using the resin; embedding an investment after the preparing of casting; and burning out the resin from a casting ring in which the investment is embedded and casting a melted material.
摘要:
A seal carving apparatus includes a thermal head having a plurality of heat generating elements disposed in lines, and thermal drive control means that performs a control process of selectively and thermally driving the individual heat generating elements while moving the thermal head and a porous material in relative to each other with the thermal head being in abutment with the porous material, thereby forming a seal face on the porous material. The thermal drive control means controls a pulse time width for thermally driving the individual heat generating elements of the thermal head under PWM control based on gradation image data having a gradation value, thereby forming a seal with a gradation on the porous material.
摘要:
A vibratory sensor is fabricated as a three-dimensional batch-micromachined shell adapted to vibrate and support elastic wave propagation and wave precession in the shell or membrane and at least one driving electrode and preferably a plurality of driving electrodes directly or indirectly coupled to the shell to excite and sustain the elastic waves in the shell. The pattern of elastic waves is determined by the configuration of the driving electrode(s). At least one sensing electrode and preferably a plurality of sensing electrodes are provided to detect the precession of the elastic wave pattern in the shell. The rotation of the shell induces precession of the elastic wave pattern in the shell which is usable to measure the rotation angle or rate of the vibratory sensor.
摘要:
The present invention is directed to a deep draw microcellularly foamed polymeric container comprising a polymeric sidewall integrally connected to a polymeric base along a bottom edge. The polymeric sidewall and base are contiguous with each other and define a shape of an open top container. The polymeric sidewall and base have a contiguous inner microcellular foam structure (having average cell diameters ranging from about 5 to about 100 microns) surrounded by a smooth outer skin layer integrally connected therewith. The polymeric sidewall defines a container height and a top opening, wherein the top opening defines a top opening width, and wherein the polymeric base defines a container base width, and wherein the area defined by the top opening is greater than the area defined by the polymeric base, and wherein the ratio of the container height (h) to the top opening width (w) is greater than about 1:1 (h:w).
摘要:
A foamed and stretched plastic container having a basic structure which includes a mouth portion and a body wall continuous to the mouth portion and is stretch-formed, the body wall forming a foamed region where foamed cells are distributed, and the mouth portion being an unfoamed region where no foamed cell is present, wherein the foamed cells present in the foamed region have a flat shape being stretched in the direction of stretch, and the foamed cells positioned in the central portion in the direction of thickness of the container wall have the largest lengths in the direction of maximum stretch.
摘要:
An injection foam molding machine of the invention includes: a movable mold platen; a fixed mold platen; a mold fastening hydraulic cylinder that is provided at each of four corners of both mold platens; a tie bar that is driven by the hydraulic cylinder to fasten the molds; two sets of mold opening and closing actuators that drive the movable mold platen to move close to or away from the fixed mold platen; two sets of dedicated core back devices; and a control device that controls the two sets of mold opening and closing actuators and the two sets of dedicated core back devices, wherein the control device includes a dedicated core back program that simultaneously controls the two sets of mold opening and closing actuators and the two sets of dedicated core back devices during a foaming core back operation of moving the movable mold platen away from the fixed mold platen.