| abstract |
Device for visualizing in line the fusion of polymers in plasticizing machines with screw, comprising, an external metal cylinder to be fixed in radial position with respect to the cylinder of the plasticizing machine, a bushing with an optical window transparent to the light spectrum visible pressure and temperature resistant, positioned in such a way that its outer face is tangent to the inner surface of the cylinder of the plasticizing machine, and an internal metal cylinder to guide the refrigerant gas and allow the use of an observation probe with operating temperature limits and with lighting system. Device according to claim 1 to be screwed or installed in screw plasticizing machines, such as, extruders of one or more screws, blowers and injectors. Device according to claims 1 and 2 characterized in that the transparent optical window is made of quartz, glass or Sapphire with a maximum thermal resistance up to 1000 ° C. Device according to claims 1, 2 and 3 characterized in that the optical window is small, round and with a diameter equal to or less than 10 mm to not significantly affect the thermal regime of the machine pInsification with screw. <EMI FILE = "03012620_1" ID = "1" MFI = JPEG> |