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.
American Galvanizers Association Excellence Awards: Topeka Children’s Discovery Center (Civic Contribution Category)
"AZZ Galvanizing - Kansas City" provided the perfect solution to safeguard an innovative canopy structure at a nonprofit children's museum in Topeka, Kansas.
Nestled in the plains of Kansas lies the Kansas Children’s Discovery Center, a place where its core mission is to enhance the lives of children and enrich the communities they serve. So, when the University of Kansas’ School of Architecture and Design was approached to help build a canopy for the Center, the students jumped at the chance to get hands on experience while giving the current and future generations of children to enjoy.
The Center was looking for a canopy that was sturdy and would blend in with the surrounding structures on site. They also asked for a piece that would capture the attention of the children while providing a safe shelter to allow kids to enjoy the scenery outside. The KU students decided to use HSS material mix along with support tubes running across the top that is finished off by repurposed sheet steel for cover.
With a plan in place, the students began putting together ideas on how to build the strong structural shape that would hold up to the outdoor elements. From there, hot-dip galvanizing became a strong candidate for their needs. KU approached the galvanizer with this project in hopes to accomplish their goal of providing a long-lasting solution to the children that visit the Discovery Center daily.
By going with hot-dip galvanizing, this ensured that corrosion would be a non-factor for both inside and outside the hollow structures. In the end, the job produced more than just a canopy – it provided everyone involved an opportunity to give back to the local community in which we serve.
Hot-dip galvanizing is a trusted solution for long-lasting corrosion protection, relied upon for its durability and unmatched performance. This video provides a step-by-step look at the galvanizing process, showcasing how steel is transformed with a protective zinc coating that stands up to the toughest conditions. From surface preparation to the final finish, see how this process ensures strength and longevity for projects of all sizes.
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