PVDF tube is a semi transparent tubular object with tightly arranged molecular chains, strong hydrogen bonds, an oxygen index of 46%, and high flame resistance.
PVDF tube, crystallinity 65%~78%, density 1.75-1.78g/cm3, long-term use temperature -40~150 ℃. Its outstanding features are high mechanical strength, good radiation resistance, and can be used outdoors for a long time without maintenance.
The PVDF pipe bending process produced by our company. Including steps such as cutting, heating, continuous heating, bending forming, cooling, and material retrieval. The present invention uses a constant temperature continuous rolling method to heat PVDF pipe material, ensuring uniform heating inside and outside the pipeline. By controlling the temperature at which the pipeline softens during heating, the filling bending method is adopted during pipeline bending, effectively controlling the defects of cross-sectional shape distortion, wrinkling, and large cross-sectional thickness errors during pipeline bending; And by effectively controlling the ambient temperature, the heating temperature of the pipeline, and the preheating temperature of the mold and packing, the size consistency of the pipeline after bending and forming can be maintained.
In addition, the bent pipes are kept in the mold for insulation process after bending, and internal stress is eliminated through temperature and time control, effectively solving the problem of pipeline rebound, thus producing high-quality PVDF bent pipes suitable for various applications.
