Equipment Test Requirement after Lining PTFE from RANA
PTFE plates must meet the requirements of ZB433002
The density of PTFE plate should be ≥2.16g/cm3, and impurities are not allowed.
The integrity test of PTFE plates. The voltage should be ≥15KV, the probe moves slowly, and the speed is ≤100mm/s.
Sodium treatment of PTFE sheet
Repairing is allowed when the number of micropores in the liner is less than 2/m2. Otherwise, the part with micropores should be removed
Clean the activated surface dust and place it in a dust-free, non-polluting location before applying the glue.
The interval between the second application of glue is ≥24 hours.
The last glue and welding time is ≥ 36 hours.
Before welding, the electrode should be placed in a special kilogram, and the package is clean and free of pollution.
A special welding torch is required for the welding torch.
The appearance of the lining should be smooth and flat without cracks.
The color of the flange flange and other corners should be uniform and there is no whitening.
The exposed liner should be packed before the external corrosion protection