Stainless steel lined PTFE interior storage tanks, vertical and horizontal mix tanks

Pre-treatment

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

Two: Bottom Paint Treatment

III. Adhesive Coating

A layer of special adhesive is evenly coated on the inside surface of the product, and a layer of adhesive is also applied to the back of the composite board. Then, align the composite board in the correct position and affix it.

Four, adhesive

After aligning the adhesive-coated composite panel, apply it first, then use local heating and rolling to expel the air trapped in between, ensuring a closer fit for the 3mm or 4mm PTFE sheeting.

Five, Weld Seam

Once the composite panels are fully bonded, use a professional notching machine to create "V" shaped long slots at the joint between the 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 no impurities, bubbles, or missed welds. After the overall welding is completed, use a pinhole tester to test at 15,000 volts for any microholes and make necessary repairs. Upon completion of inspection, flatten any protruding welding rods on the composite panel surface using an imported groove planer, then reinforce with a 20mm-wide welding strip over the original rods. Ensure the welding area is secure and free of microholes. After welding, test for pinholes at 30,000 volts to further confirm the welding quality.

Section 7: Inspection