Advanced Production Technology Of PTFE

With the development of technological economy, the application of the polytetrafluoroethylene (PTFE) becomes more and more extensive, and PTFE has already become one of indispensable material to solve a lot of key technology and improved the level of production engineering, such as modern science and technology , war industry , civil industry, etc. In order to improve the production efficiency of the polytetrafluoroethylene (PTFE) constantly, we begin to adopt the advanced production technology , suitable for the high viscoplasticity material-Ram-punch extrusion.Ram-punch extrusion adopts the principle of forging and smaller cross section's plunge, it push PTFE into the barrel with higher frequency. According to the viscoplasticity of the polytetrafluoroethylene (PTFE), the fluctuation in the process of extrusion becomes smaller and smaller, and realize continuous extrusion finally. Compared with traditional plunge type extruder, it has many advantages, such as higher frequency, better melting result, higher quality of the product and simpler process.According to the character of Ram-punch extruder molding, the thesis analyzes the process of extruding. We set up the entirely physical model of...