Glass-Fused-to-Steel Tanks Production Steps
Fusion between steel sheet and glass coating is very important for Glass-Fused-to Steel tank, because it directly effect the GFS tank service life. In order to provide high quality product to our clients, Center Enamel conduct very strict quality control from raw material to final product. Before mass production, raw material and small sample test need to be done to check the quality of raw material and fusion between coating and steel panel, if qualified then mass production will be carried out. Tanks are produced on the automatic production line, to make sure good and stable quality control. After the production all steel panels need to be tested by 1500V spark holiday test, all steel panels are 0 discontinuity.
CNC Laser Cutting
Inputting the Confirmed drawing into the computer, bolt holes and openings will be cut
on CNC laser cutting machine automatically.
Steel Pre-treatment - Shot Blasting
Shot blasting according to SSPC SP10 standard, steel surface is in silver white color
After shot blasting,steel panel need to be arch bent to a radian according to tank diameter.
Automatic Enamel Spraying
Spray the glass coating on both side of steel panels automatically. Coating thickness is controlled within 230 micron to 450 micron.
High Temperature Tunnel Oven
After enameling and drying, then firing steel panels in the oven at the temperatures ranging from 850℃ -940℃, which facilitates the interfacial fusion reactions that combine the two materials.
Quality inspection need to be conducted after production, including: coating thickness, holiday test, color consistency.