PPGI Manufacturer

PPGI manufacturer is a modern factory specialized in the production of color coated steel plate/steel coil. The ppgi manufacturer is a kind of composite material product made of cold rolled steel plate, galvanized steel plate or aluminum plate, which is subject to surface pretreatment (cleaning, chemical conversion treatment), and then coated with one or more layers of organic coating (such as PVC, SMP, PVDF, etc.) on the surface and baked and solidified.

Next, we will learn the production process of the ppgi manufacturer:

The ppgi manufacturer needs to have a complete color coating production line, which usually includes the following key processes:

The cppgi manufacturer needs to load and uncoil the steel coil:

·Lift the steel coil onto the uncoiler and prepare to enter the production line.

The ppgi manufacturer needs to sew and cut the steel coil:

·Connect the tail of the previous roll with the head of the next roll to ensure production continuity.

The ppgi manufacturer needs to pre-treat the steel coil:

·Cleaning: thoroughly remove grease, dust and impurities from the surface of the substrate by degreasing with alkaline solution, rinsing with hot water, etc.

·Chemical Conversion: Generally, chromium or zirconium treatment is adopted to form a dense conversion film on the surface of the substrate, greatly improving the adhesion and corrosion resistance between the coating and the substrate. This is a critical step in determining product life.

The ppgi manufacturer needs to apply and solidify the raw materials:

·Primer Coating: A roller coat of primer is applied to the surface of the substrate to prevent corrosion and enhance adhesion of the finish.

·Baking/Curing: the primer enters the curing oven, cross-links at a specific temperature (such as PMT 224-222 ° C), and is fully cured.

·Top Coating: Roller finish over cured primer to provide final color, gloss and weather resistance.

·Baking and curing (Baking/Curing): the finishing coat enters the curing oven again for curing.

·Remarks: According to the requirements, the back surface can also be coated at the same time (one coating and one drying or two coating and two drying).

Post-treatment required by the ppgi manufacturer:

·Embossing: Use a pattern roller to press grain such as wood grain and stone grain before the coating is completely cooled.

·Laminating: PVC film or other film is applied to provide richer decorative effects and protection.

The ppgi manufacturer needs to cool and wind the color coating roll:

·Once the product has cooled sufficiently, it is controlled by the tension control system and rewound into a neat coil.

Off-line&Packaging Required by ppgi manufacturer:

·Unload the finished roll from the winder and pack it according to the customer's requirements (such as protective ring, moisture-proof paper, iron package, etc.) to prevent scratch and moisture during transportation.