摘要:
A device and method for cooling granules, in particular wax granules, for processing in an injection-moulding machine, which has a cavity for receiving the granules and having an inlet opening and an outlet opening, and at least one further opening is provided for supplying a gaseous medium. In the device of the invention, the outlet opening is arranged directly or indirectly at the feed region of the screw of an injection-moulding machine and the cavity is connected to a cold-gas production device. In the process of the invention, the inlet temperature and the outlet temperature of the gas is determined and by determining the temperature difference, the preset theoretical temperature in the cavity is controlled and/or regulated.
摘要:
The present invention relates to a method and a device for rapidly stress relieving laminated RFID cards sheets (1) or individually cut cards (2) so that the effect of card wrap, bending and distortion is reduced. A freezer tunnel (5) is located down-stream of a laminator machine. The freezer tunnel (5) uses nozzles (8) to supply a cryogenic liquid in vaporized form. Laminated RFID card sheets (1) are transported through the freezer tunnel (5), where they are exposed to an ambient temperature between −40° C. to −100° C. during two minutes or less.
摘要:
The present invention relates to a process for producing free-flowing, agglomeration resistant amorphous poly-alpha-olefin based adhesive pellets. The process includes (a) extruding the adhesive through an orifice of a die plate immersed in a cooling fluid; (b) cutting the adhesive into a plurality of pellets in the cooling fluid; (c) solidifying the pellets at a temperature range of about 25° C. to about 40° C. for at least 30 minutes; and (d) separating the pellets from the recrystallization fluid and drying the pellets. The pellets harden at least three folds faster than conventionally formed pellets.
摘要:
The present invention relates to a process for producing free-flowing, agglomeration resistant amorphous poly-alpha-olefin based adhesive pellets. The process includes (a) extruding the adhesive through an orifice of a die plate immersed in a cooling fluid; (b) cutting the adhesive into a plurality of pellets in the cooling fluid; (c) solidifying the pellets at a temperature range of about 25° C. to about 40° C. for at least 30 minutes; and (d) separating the pellets from the recrystallization fluid and drying the pellets. The pellets harden at least three folds faster than conventionally formed pellets.
摘要:
Medical device polymeric tubing segments suitable for forming catheter shafts or as balloon parisons are formed with discrete regions having different orientation relative to each other. Wall thickness may also be varied of the length of the segment.
摘要:
An ultrasonic welding apparatus and method appropriate for welding sheets of plastic including oriented polyesters such as polyethylene terephthalate film, including means for chilling the workpieces while they are being compressed by the ultrasonic tool.
摘要:
The present invention relates to a process for producing free-flowing, agglomeration resistant amorphous poly-alpha-olefin based adhesive pellets. The process includes (a) extruding the adhesive through an orifice of a die plate immersed in a cooling fluid; (b) cutting the adhesive into a plurality of pellets in the cooling fluid; (c) solidifying the pellets at a temperature range of about 25° C. to about 40° C. for at least 30 minutes; and (d) separating the pellets from the recrystallization fluid and drying the pellets. The pellets harden at least three folds faster than conventionally formed pellets.
摘要:
The present invention relates to a method and a device for rapidly stress relieving laminated RFID cards sheets (1) or individually cut cards (2) so that the effect of card wrap, bending and distortion is reduced. A freezer tunnel (5) is located down-stream of a laminator machine. The freezer tunnel (5) uses nozzles (8) to supply a cryogenic liquid in vaporized form. Laminated CRFID card sheets (1) are transported through the freezer tunnel (5), where they are exposed to an ambient temperature between −40° C. to −100° C. during two minutes or less.
摘要:
Medical device polymeric tubing segments suitable for forming catheter shafts or as balloon parisons are formed with discrete regions having different orientation relative to each other. Wall thickness may also be varied of the length of the segment.