The ratio of the length of the working part of the screw (the length of the threaded part, also referring to the length from the centerline of the feeding port to the end of the screw thread) to the diameter of the screw is called the aspect ratio. When other conditions are constant (such as the screw diameter), increasing the aspect ratio means increasing the length of the screw. A large aspect ratio and reasonable temperature distribution are beneficial for the mixing and plasticization of plastics. At this time, the plastic is heated for a longer time in the barrel, and the plasticization of the plastic will be more complete and uniform, thereby improving the plasticization quality.
Zhaojiadian Village, Jiaoxi Sub District Office, Jiaozhou City, Qingdao City, Shandong Province ,China
