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.

Two, Base Paint Treatment

Section 3: Adhesive Coating

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,粘贴

After aligning the adhesive-coated composite panels in the correct position, 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.

Five: Weld Seam

After all the composite boards are fully bonded, use a professional notching machine to create a "V" shaped long groove at the junction of the two composite boards, 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 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, 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 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.

Section 7: Inspection