Steel-lined PTFE Lined Storage Tanks, Horizontal and Vertical Agitated Tanks

Pre-treatment

The inner surface of the lining equipment is degreased with solvents and dried, followed by sandblasting with 46# steel grit. The surface that has been sandblasted is then cleaned with trichloroethylene and dried.

II. Base Paint Treatment

Section 3: Adhesive Coatings

The product is evenly coated with a special adhesive inside, and the back of the composite panel is also coated with adhesive. Then, align the positions and affix the composite panel.

Four, Paste

After aligning the adhesive-coated composite panels in their corresponding positions, apply them first. Then, use local heating and rolling to expel the air trapped in between, ensuring a tighter fit for the 3mm or 4mm polytetrafluoroethylene sheets.

Section 5: Weld Seam

Once the composite panels are fully bonded, use a professional notching machine to create a "V" shaped long groove at the joint between the two panels, and clean out any debris from the gap.

Welding

Utilize imported high-temperature welding torches with Φ3.5mm PFA welding rods. Weld the two composite panels together in the middle of the grooved seam, ensuring no impurities, bubbles, or missed welds. After the overall welding is complete, use a pinhole tester to test at 15,000 volts for any microholes and make necessary repairs. Upon completion of the inspection, flatten any protruding welding rods on the composite panel's top surface using an imported groove planer. Then, reinforce the original welding rods with a 20mm-wide welding strip to ensure a secure and bubble-free weld. Finally, test for pinholes using 30,000 volts to confirm the welding integrity.

Section 7: Inspection