摘要:
The present invention describes a method of explosively vaporizing a piecef semiconductor material in a plasma formed by a fast, high voltage current pulse. The semiconductor material may be formed from crystalline, polycrystalline, or amorphous forms of semiconductor material. After the semiconductor material is vaporized, it coalesces as the plasma begins to cool and is deposited in a collection system. The size and composition of the microparticles formed by this process can be controlled by conditioning the plasma in predetermined manners. In particular, impurities can be introduced either in the target material, in gas introduced in the plasma, or in the gas through which the coalescing microparticles travel prior to deposition.
摘要:
An SMC (FRP) molding is coated with a minimum amount of an IMC composition by skewing one of the mold halves during the initial IMC molding cycle to effect a scissoring action, the fulcrum being at or about the IMC injection point or placement to spread or wipe the IMC over the surface of the SMC part and then effecting at least substantial parallelism of the mold halves during the remaining IMC cycle of coating and curing the IMC.
摘要:
Decorations resembling stained glass miniatures which release perfume into the atmosphere are manufactured from perfume-containing thermoplastic resin compositions and multiple-opening frames. The method of filling the resin composition into the openings of the frames provides a secure interlock between the filled resin and the ribs of the frames, and in a preferred procedure, the bottom surface of the filled resin is clarified to improve the transparency of the filled resin, which is preferably employed in multiple colors.
摘要:
A method for labelling a histological specimen, wherein such specimen is embedded in a paraffin block along with an integral set of supported elongated elements identifying such specimen for subsequent sectioning on a microtome. The identification elements are sectioned concurrently with the specimen, so as to form an integral part of the section.
摘要:
A process of inlaying a design in molded simulated marble or the like comprising the steps of applying a release coating to the inner bottom surface of a mold, applying a transparent gel coat on said release coating, smoothing a piece of porous flexible sheet material bearing the design on one face thereof on the gel coat in the mold to conform to the surface of the gel coat with the one face of the piece of cloth bearing the design toward the gel coat, and casting a hardenable marble mix in the mold over the piece of cloth. The marble mix is then allowed to harden for removal of the resultant simulated marble slab from the mold, the piece of sheet material being embedded in the slab with the design viewable through the transparent gel coat.
摘要:
Right angle arms supporting mold bottom stamps pivot about an axis at the intersection of the arms to present in sequence the bottom stamps into underlying position with respect to an upper mold and a side mold to form in sequence first and second mold cavities limited respectively by the bottom stamps to permit multiple layer, preferably polyurethane shoe soles to be molded to a prepositioned shoe last and upper which may constitute in fact the upper mold.
摘要:
A method for producing glass fiber reinforced plastic molded articles with decorative patterns thereon is provided, which method includes the steps of placing at least two kinds of differently colored sheet molding compound (SMC) mat layers on a stationary mold, each of the SMC mats including glass fibers impregnated with resin, the resin in each of the SMC mats including different colorants, the area of each SMC mat layer occupying less than the total effective molding surface area of the stationary mold surface, disposing a movable mold in engagement with the stationary mold with the SMC mat layers interposed between such molds, and applying heat and pressure to the molds so as to fluidize and polymerize and cure the resin in the SMC mats. When fluidized, the two kinds of differently colored mats are mingled with each other to form flow patterns comprised of the distinct colors of each of the mats. Inasmuch as the total area of each of the SMC mat layers occupies less than the total effective molding surface area of the stationary mold, there will be sufficient space between the stationary mold and movable mold to allow the resin in each SMC mat layer when heat and pressure are applied thereto, to flow and fill the remaining space between the molds and be mingled with resin from the other SMC mats to form flow patterns of the colors of the mats. The final article produced will thereby include a decorative pattern of colors on at least one surface thereof.
摘要:
A PROCESS FOR FORMING SIMULATED MARBLE (HEREINAFTER REFERRED TO AS "CULTURED MARBLE") INCLUDING APPLYING A POLYESTER GEL-COAT TO A MOLD SURFACE FOLLOWED BY SUCCESSSIVELY APPLYING VINYL AND POLYESTER VEINGIN AND SPATTER COMPOSITIONS CONTAINING LOW-BOILING SOLVENTS OVER THE GELCOAT WITH EVAPORATION OF SUBSTANTIAL AMOUNTS OF SOLVENT FROM THE RESPECTIVE COMPOSITIONS DURING THE APPLYING
STEPS, THEN FILLING THE REMAINDER OF THE MOLD WITH RESIN AND CURING.
摘要:
A FIRST EXTRUDED STREAM OF MOLTEN SYNTHETIC THERMOPLASTIC MATERIAL AND A SECOND EXTRUDED STREAM OF DIFFERENTLY COLORED MOLTEN THERMOPLASTIC MATERIAL ARE COMBINED IN A CONDUIT TO PROVIDE A COMPOSITE STRATIFIED STREAM HAVING ADJACENT DIFFERENTIALLY COLORED LAYERS EXTENDING LONGITUDINALLY OF THE STREAM AND HAVING A RELATIVELY SHARPLY DEFINED INTERFACE THEREBETWEEN. THE COMPOSITE STREAM IS IS THEN PASSED THROUGH A SHEET FORM EXTRUSION DIE HAVING ITS DIE LIPS GENERALLY ALIGNED WITH THE AFORESAID INTERFACE, WHEREBY THERE IS PRODUCED COMPOSITE SYNTHETIC THERMOPLASTIC SHEETING HAING A VARIEGATED COLORED PATTERN, ADVANTAGEOUSLY A WOOD-GRAIN TYPE PATTERN, ON AT LEAST A PORTION THEREOF. THE PATTERENED EFFECT IS ACHIEVED BY CONTROLLING THE TEMPERATURE OF EACH STREAM OF THERMOPLASTIC MATERIAL T PROVIDE A DIFFERENTIAL IN THE ADJUSTED MELT VISCOSITIES OF THE MOLTEN SYNTHETIC THERMOPLASTIC MATERIAL AND/OR THE RELATIVE OUTPUT VOLUMES FOR THE INDIVIDUAL THERMOPLASTIC STREAMS BEFORE COMBINATION.
摘要:
A TFE EXTRUSION PREFORM IS MADE UP OF A PLURALITY OF COLORED SECTIONS CORRESPONDING TO THE SAME NUMBER OF WIRES WHICH ARE TO BE INSULATED. THE PREFORM IS ARRANGED SUCH THAT EACH COLORED SECTION WILL COVER A CONDUCTOR WIRE UPON EXTRUSION. THE RESULTANT PRODUCT IS A MULTI-CONDUCTOR CABLE WITH THE INSULATION OF EACH CONDUCTOR INTEGRAL WITH THE INSULATION OF THE OTHER CONDUCTOR BUT OF DIFFERENT COLORS FOR COLOR CODING (IDENTIFICATION). MODIFICATIONS OF THIS IDEA ARE ALSO DISCLOSED WHEREBY COLOR CODING IS EFFECTED BY DIFFERENT COLORED STRIPES RATHER THAN UTILIZING THE VARIOUS COLORS OF INSULATION.