Steel-lined PTFE Lined Storage Tanks, Vertical and Horizontal Mixers Storage Tanks
Pre-treatment
The inner surface of the lining equipment is first degreased with solvents and dried, followed by sandblasting with 46# steel grit. The surface is then cleaned with trichloroethylene and dried.
Section 2: Bottom Paint Treatment
Section 3: Adhesive Coating
Apply a uniform layer of special adhesive inside the product, and also coat the backside of the composite panel with adhesive. Then, align and affix the composite panel in place.
Four, Paste
After aligning the adhesive-coated composite panel, first apply it in place. Then, perform local heating and rolling to expel air trapped between layers, ensuring a closer fit for the 3mm or 4mm PTFE (Teflon) sheet.
Five. Weld Seam
Once all the composite panels are bonded, use a professional notching machine to create "V" shaped grooves at the junction of the two panels, and clean out any debris from the gaps.
Welding
Utilize imported high-temperature welding torch 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 incomplete 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 upper surface using an imported groove planer. 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 with a 30,000-volt voltage after welding is finished to further confirm the welding quality.
Seven: Inspection
