On-line detection system and detection method for viscosity of polymer with micro-scale rectangular slit

• Main Authors: LU JIN, JIANG BINGYAN, WU WANGQING, ZHAO BAISHUN
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The embodiment of the invention provides an on-line detection system and detection method for the viscosity of polymer with a micro-scale rectangular slit, and belongs to the technical field of measurement. The system specifically comprises an injection machine; a viscosity testing device comprises a mold frame, a heating assembly, a pressure measuring assembly and a cavity thickness adjusting assembly, wherein the cavity thickness adjusting assembly is arranged on the mold frame, a core mold of the cavity thickness adjusting assembly, a sealing block and a movable mold plate of the mold frame are combined to form a rectangular cavity, and an injection port of the injection machine and the rectangular cavity are both in communication with a pouring nozzle of the mold frame; the heating assembly is attached to the rectangular cavity, and the pressure measuring assembly is arranged at the bottom of the rectangular cavity and measures the pressure drop of the rectangular cavity; the controller is electrically co