Thin-walled tube extrusion system and preparation method of thin-walled tube

• Main Authors: MO PANPAN, LIU JIANGBO, CHEN YONGZHEN, CHEN PENGTAO, WANG LIANSEN, CHENG LINGLING, WANG PO, GUO YAN, XU JIYUAN, MIAO WEI, XU HAITAO, GUO NAN
• Format: Patent
• Language: Chinese; English
• Published: 08.09.2023
• 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 invention belongs to the technical field of medical instrument catheter extrusion, and relates to a thin-walled tube extrusion system and a method for preparing a thin-walled tube by using the system. The extrusion system mainly comprises a material preparation system, a blanking system, a plasticizing forming system, a pressure closed-loop system, a pre-shaping system, a vacuum sizing system, a cooling forming system, an ultrasonic traction closed-loop system and a cutting forming system. Through the system, after being treated by the material preparation system, a material to be extruded is discharged to the plasticizing forming system through the discharging system, is pre-shaped through the pre-shaping system, sequentially passes through the vacuum sizing system and the cooling forming system, and then passes through the ultrasonic traction closed-loop system to precisely control the size of a pipe body; and finally, the thin-walled pipe is obtained after treatment of the cutting forming system. The t