摘要:
Disclosed is a casing body (1) made of a thermoplastic plastic material, in particular for cosmetic pencils or writing pencils, the cavity H of which is enclosed by an at least three-shell construction A, Z, I, it having 1 to 10 outer shells A, an intermediate shell Z and 1 to 10 inner shells I, the intermediate shell Z including a polyamide foam and at least one of the other shells A, I including a polyamide.
摘要:
A suction blowmold (1) having a cavity (3) formed by two mold halves (9) for producing extrusion suction-blowmolded plastic molded parts (10) using the suction-blowing method, in which an extruded, plastically deformable preform (2) in the form of a plastic melt tube is brought into the closed cavity (3) and in position in the cavity at least partially sliding on the mold surface (5). The suction blowmold (1) according to the present invention is characterized in that at least a part of the mold surface (5) of the cavity (3) has a structuring which provides a reduced sliding friction to the preform (2). A method for producing such a suction blowmold (1), the use thereof for producing extrusion suction-blowmolded plastic molded parts (10), and corresponding extrusion suction-blowmolded plastic molded parts (10) are additionally disclosed.
摘要:
The invention relates to a method for laser welding two plastic components A, B brought into contact at least in the joining area, wherein component B facing away from the laser radiation consists of a plastic matrix with a white pigmentation of 1.5 5-20 wt.-%, and component A facing the laser radiation, through which the laser beam passes in the welding process, exhibits a plastic matrix. For a given laser wavelength the travel distance of the laser beam through the component A measures at most 10 mm, and given a white pigmentation of the component A in wt.-%, the product of the travel distance of the laser 10 beam through the component A in mm and white pigmentation in wt.-% is less than 1.25, and the travel distance of the laser beam through the component A measures at most 1 mm.
摘要:
A suction blowmold (1) having a cavity (3) formed by two mold halves (9) for producing extrusion suction-blowmolded plastic molded parts (10) using the suction-blowing method, in which an extruded, plastically deformable preform (2) in the form of a plastic melt tube is brought into the closed cavity (3) and in position in the cavity at least partially sliding on the mold surface (5). The suction blowmold (1) according to the present invention is characterized in that at least a part of the mold surface (5) of the cavity (3) has a structuring which provides a reduced sliding friction to the preform (2). A method for producing such a suction blowmold (1), the use thereof for producing extrusion suction-blowmolded plastic molded parts (10), and corresponding extrusion suction-blowmolded plastic molded parts (10) are additionally disclosed.
摘要:
The invention relates to a method for laser welding two plastic components A, B brought into contact at least in the joining area, wherein component B facing away from the laser radiation consists of a plastic matrix with a white pigmentation of 1.5 5-20 wt.-%, and component A facing the laser radiation, through which the laser beam passes in the welding process, exhibits a plastic matrix. For a given laser wavelength the travel distance of the laser beam through the component A measures at most 10 mm, and given a white pigmentation of the component A in wt.-%, the product of the travel distance of the laser 10 beam through the component A in mm and white pigmentation in wt.-% is less than 1.25, and the travel distance of the laser beam through the component A measures at most 1 mm.