摘要:
A method for manufacturing plastic products from moldable plastic materials, involving the efficient use of a press and a mold (12). The method includes heating the press and the mold (12) to a temperature above the melt temperature of the plastic material, with the mold (12) then removed from contact with the press and the press applied to a replicate mold. The press is utilized so as not to apply pressure to the plastic material and the mold (12) is preferably formed of a light weight material having high heat conductivity.
摘要:
Ein Verfahren und eine Vorrichtung zur Herstellung eines säulenförmigen Körpers (1), bei dem ein Gemisch (2) mit einem wesentlichen Gehalt an thermoplastischen Partikeln zu einem Pastenstrang (3) erschmolzen, in eine um seine achse rotierende Bewegung versetzt und im wesentlichen in waagerechter Richtung in eine Hohlform (4) eingespeist wird. Der Pastenstrang (3) wird in der Hohlform (4) der Innenwandung (6) in Umfangsrichtung folgend zur Ablage gebracht, schleifenartig aufeinandergeschichtet und in die Gestalt des Körpers (1) überführt, wonach der Körper (1) durch Abkühlung verfestigt und entnommen wird.
摘要:
Ein Verfahren und eine Vorrichtung zur Herstellung eines säulenförmigen Körpers (1), bei dem ein Gemisch (2) mit einem wesentlichen Gehalt an thermoplastischen Partikeln zu einem Pastenstrang (3) erschmolzen, in eine um seine achse rotierende Bewegung versetzt und im wesentlichen in waagerechter Richtung in eine Hohlform (4) eingespeist wird. Der Pastenstrang (3) wird in der Hohlform (4) der Innenwandung (6) in Umfangsrichtung folgend zur Ablage gebracht, schleifenartig aufeinandergeschichtet und in die Gestalt des Körpers (1) überführt, wonach der Körper (1) durch Abkühlung verfestigt und entnommen wird.
摘要:
The printing of a letter, character or a figure (4) on an inner ear type headphone, which is a molded body of a thermoplastic synthetic resin, is performed by irradiating the surface of the synthetic resin molded body with a laser light for expanding any moisture or air contained in the molded body for foaming the surface. Printing is achieved in the form of foamed regions of the synthetic resin and hence is clear and superior in abrasion resistance and durability.
摘要:
Precursor microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided water-insoluble siliceous filler, and interconnecting pores is stretched to increase the porosity and provide regions of stretch-induced molecularly oriented polymer in the matrix.
摘要:
Precursor microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided water-insoluble siliceous filler, and interconnecting pores is stretched to increase the porosity and provide regions of stretch-induced molecularly oriented polymer in the matrix.
摘要:
An air permeable sheet-like structure comprising 20 to 60% by weight of reinforcing fibres having a high modulus of elasticity (as herein defined), and being between about 7 and about 50 millimetres long, and 40 to 80% by weight of wholly or substantially unconsolidated particulate plastics material, and in which the fibrous and plastics components are bonded into an air permeable structure.
摘要:
A magnetic field generating device for nuclear magnetic resonance-computerized tomography comprising a pair of permanent magnets magnetized in the same direction with different-polarity poles mutually opposed to define an air gap, whose maximum energy product, (BH) max , is not less than 240kJ/m 3 , each of the opposing faces of the permanent magnets having a magnetic pole facing provided with an annular rib and, as occasion demands, at least one inner projection inside the annular rib, and the permanent magnets being coupled magnetically by a yoke to generate a magnetic field within the air gap. The present device is able to create a uniform and stable magnetic field, in spite of its small-sized body.