Teflon lining technology
For tight lining, the Teflon plate which has been activated in advance or bonded with glass fiber cloth is coated with adhesive. At the same time, the steel shell of the equipment is sandblasted with SA2 grade and cleaned with cleaning agent. Then the PTFE plate is bonded to the steel body through its original vacuum lining technology, which can resist negative pressure up to - 0.095mpa, According to the different needs of users, the best thickness of lining material is selected. The technology is not limited by the size of manufacturing equipment, but also solves the three major problems of cleaning, temperature and corrosion resistance in chemical industry and electronic chemical industry. It has the characteristics of good permeability resistance, smooth and bright surface, small friction coefficient, not easy to scale and long service life.
Material and characteristics of plate lining
The imported PTFE and PFA plates are produced by the famous fluoroplastics company of European Union with advanced extrusion process, and the normal thickness is 3mm. The surface of the plate is smooth, uniform, dense, uniform in thickness, with a width of 1.2m and a length of 25m. Compared with the traditional plate plate, it can reduce the welding seam.
Difference between imported PTFE sheet and domestic PTFE sheet
The imported Teflon plates are manufactured in high-level clean workshops, and their cleanliness is much higher than that of domestic ones, and the effective anti-corrosion thickness is stronger than that of domestic ones.
The process and process of Teflon production in EU is more reasonable than that of domestic plate in recent decades. The main performance is that the density (2.15-2.2g / cm ~ 3) and thickness (3-3.15mm) are balanced. On the basis of effective anti-corrosion, the thickness of the plate is not blindly increased, which affects the lining difficulty of the plate.
Mpa-0.05 is better than the activated PTFE sheet in the world, which directly affects the strength of the domestic plate.