Once the metal is cleaned, treated, and painted, the strip is rewound into a coil size prescribed by the customer. From there, the coil is removed from the line and packaged for shipment or additional processing.
After the primer is applied and cured, then the metal strip enters the finish coat station where a topcoat is applied. Topcoats provide color, corrosion resistance, durability, flexibility and any other required physical properties. Like primers, the topcoat is cured using thermal cure ovens.
Oven
Coil coating ovens can range from 130 feet to 160 feet and will cure the coatings in 13 to 20 seconds.
During this stage, the strip enters the prime coat station whereby a primer is applied to the clean and treated metal. After the primer is applied, the metal strip travels through a thermal oven for curing. Primers are used to aid in paint adhesion, improve corrosion performance and enhance aesthetic and functional attributes of the topcoat.
S Wrap Coater
The S wrap coater design allows for primers and paints to be applied to the top and back side of the metal strip simultaneously in one continuous pass.
The cleaning and pretreating section of the coil coating process focuses on preparing the metal for painting. During the cleaning stage, dirt, debris, and oils are removed from the metal strip. From there, the metal enters the pretreatment section and/or a chemical coater whereby chemicals are applied to facilitate paint adhesion and enhance corrosion resistance.
Dried-In-Place
In this stage a chemical that provides enhanced corrosion performance is applied. This treatment can be chrome free if required.
The accumulator is a structure that adjusts up and down to store material, which makes continuous operation of the coil coating process possible. This accumulation will continue to feed the coil coating processes while the entry end has stopped for the stitching process. As much as 750 feet of metal can be collected.
At AZZ Surface Technologies, we’re committed to providing you with precise, consistent and durable metal finishing services.
It’s a simple concept – when you choose AZZ, you’re choosing highly automated operations that leverage large-scale production, fast turnaround times, reduced logistical burdens and costs, and a finished product that protects and extends the life of application-critical components.
AZZ is proud to offer unmatched powder coating, plating, e-coating, wet coating, duplex coating, military specification coating, coating removal and surface preparation, ensuring that you have the right solution that not only supports your vision and unique goals, but exceeds expectations.
We function as an extension of your facility, engaging with you as a collaborative supply chain partner to bring you unparalleled efficiency.
As a division of AZZ, North America’s largest hot dip galvanizer of fabricated metals, we have an extensive operational footprint and bring the highest level of expertise to your metal coatings
We also boast many critical certifications, such as AS9100 (aerospace quality management), Caterpillar (heavy equipment), General Dynamics (aerospace and defense), ISO (quality management), NADCAP Quality (aerospace and defense) and PACCAR (automotive).
From enormous part sizes up to 60 feet in length to light and fast applications, we have a solution that will fit your needs and meet your unique challenges head on in industries from aviation and agriculture to construction, OEMs, transportation and more.
FABTECH returns to the Georgia World Congress Center, November 8-10, 2022 and provides a convenient ‘one-stop shop’ venue where you can meet with world-class suppliers, discover innovative solutions, and find the tools to improve productivity and increase profits. There is no better opportunity to network, share knowledge and explore the latest technology, all in one place.
