Stainless steel lined PTFE inner-lining storage tanks, vertical and horizontal agitator tanks
I. Pretreatment
The inner surface of the lining equipment is degreased with solvents and dried, followed by sandblasting with 46# steel shot. The sandblasted surface is then cleaned and dried with trichloroethylene.
Surface Paint Treatment
Section 3: Adhesive Coatings
Apply a uniform layer of special adhesive to the inner surface of the product, and also coat the backside of the composite board with adhesive. Then, position and adhere the composite board accordingly.
Four, Paste
After aligning the adhesive-coated composite board, apply it first, then perform local heating and rolling to expel air trapped in between, ensuring a tighter fit for the 3mm or 4mm PTFE (Teflon) sheeting.
Five: Weld Seam
Once the composite panels are fully bonded, use a professional notching machine to create "V" shaped long grooves at the junction of the two panels, and clean out any debris from the gaps.
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 there are no impurities, bubbles, or missed welds. After the overall welding is complete, use a pinhole tester to test with 15,000 volts to check for any microholes and make necessary repairs. Upon completion of the inspection, use an imported groove planer to flatten any protruding welding rods on the composite panel's top surface. Then, reinforce the original welding rods with a 20mm-wide welding strip to ensure the welds are secure and free of microholes. Finally, test for pinholes using 30,000 volts after welding to further confirm the welding quality.
Seven, Inspection
