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.
Project Spotlight: “Friday Night Lights” in Crowley, TX (AZZ Galvanizing – Crowley)
Texas High School Football is a sensory experience—the sight of Friday Night Lights, the roar of excited fans, the taste of concession stand popcorn that somehow tastes better when it’s served in a paper bag… and maybe even a little better when it’s eaten in a brand new, modern stadium.
Crowley ISD is taking Friday night lights to the next level with its new centralized sports complex to serve both Crowley High School and North Crowley High School. The city of Crowley, Texas (just outside of Fort Worth) has seen tremendous growth in student enrollment over the last several years, demanding more space and innovative facilities for the district’s award winning athletic programs. This superior sports complex is home to Crowley Football and Soccer, as well as playoff games and venues for outside organizations, providing additional revenue for the district.
Funding for the project was approved by voters in the 2007 bond package and the new facility was scheduled to be completed prior to the 2022 football season. This 8,000-seat facility includes a field house, locker and training room areas, and a split-level press box. The north endzone also has an impressive 60 x 30 ft. LED video scoreboard. Unique to this complex, the second level of the field house is a 3,000 Sq. ft. community room that offers the ability to host large events.
This impressive new sports complex is expected to be the shining star for the town and community of Crowley for years to come. As an outdoor facility, the CISD Sports Complex will be subject to perpetual abuse from the elements 365 days per year. Therefore, the designers chose hot dip galvanizing as the corrosion protection system. HDG provides a barrier protection and resilience that will withstand the steamy summers and damp, brisk winters that are characteristic of north Texas. The fabricator is one of the largest steel stadium manufacturers in the United States and creatively designs stadiums with HDG coatings to withstand the elements of any environment in North America. HDG not only provides a durable coating, it also provides outstanding, maintenance free corrosion protection and adds to the aesthetic appeal of the entire venue.
The general contractor broke ground in early 2021 with a deadline being the 2022 football season. Following COVID, supply chain and labor issues caused delays in every industry. It was imperative to meet all budgeted completion dates in order to kick off the 2022 football season for Crowley high schools. Fortunately, steel can be hot dip galvanized in all-weather situations, 24 hours a day, 7 days a week. This came into play, as the project was behind. The galvanizer was able to assist in 1 – 3 day turns on all loads being galvanized. Another benefit is the galvanizer was located in Crowley, just a few miles from the jobsite. After the dust settled, the galvanized steel was delivered in order for steel erection to begin on-time. The stadium was completed in time for the beginning of the 2022 Crowley ISD Football Season.
The Crowley ISD Sports Complex is a sight to see. “Friday Night Lights” shine like a beacon in the night and can be seen for miles, from Interstate 35 and beyond. The hot dip galvanized, aesthetically pleasing complex is spectacular and will create a lot of memories for families, friends and community each Friday night during Texas High School Football season for decades to come.
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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