Let's talk about dimples that turn our strip to scrap when debris is picked up during the Galvanizing, Gavalume, and Galvanneal process. After strip leaves the galvanizing pot, it usually goes through a long vertical climb for 8-10 stories. This gives the coating time to cool. The strip continues to travel down the line to through the “APC” (“After Pot Cooling”) and over a deflector roll. Many times a line has two deflator rolls: one for the pass up; one for the pass down.
And here’s where the problem comes in.
Often, as in almost always, zinc particles get stuck in the coating and dry during the climb up. These little pieces of debris break off as they move through the APC turn and deflector rolls. They get stuck on the surface of the rolls and create dimples in the strip, which becomes a pattern of dimples as the strip continues to pass over.
Manufacturers have tried to address this problem with Kevlar® sleeves, blankets, and scrapers, but we all know debris still gets stuck and ruins huge amounts of strip, costing us time, money, and productivity. These “solutions” aren’t reliable, and they’re cost and maintenance intensive.
APT offers a different solution.
We know the best way to keep the surface of the rolls free from debris is to continually clean it. The best way to clean it is with a wide face brush. So, we’ve engineered a system that uses oscillating bristle brushes to continually clean the surface of the deflector roll. Take a look at the picture. APT designed this brush to sit close to the roll and can continually clean the surface.
And here’s where the problem comes in.
Often, as in almost always, zinc particles get stuck in the coating and dry during the climb up. These little pieces of debris break off as they move through the APC turn and deflector rolls. They get stuck on the surface of the rolls and create dimples in the strip, which becomes a pattern of dimples as the strip continues to pass over.
Manufacturers have tried to address this problem with Kevlar® sleeves, blankets, and scrapers, but we all know debris still gets stuck and ruins huge amounts of strip, costing us time, money, and productivity. These “solutions” aren’t reliable, and they’re cost and maintenance intensive.
APT offers a different solution.
We know the best way to keep the surface of the rolls free from debris is to continually clean it. The best way to clean it is with a wide face brush. So, we’ve engineered a system that uses oscillating bristle brushes to continually clean the surface of the deflector roll. Take a look at the picture. APT designed this brush to sit close to the roll and can continually clean the surface.
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- The oscillation speed varies between 50-80 strokes a minute, so you can program it specific to the job.
- We can fit the system with profile brushes so it works with rolls that have a crown.
- The brush can be configured using the packet system, making changes and replacements easy and cost effective.
- The result is uniformed brush cleaning over the whole service of the roll so you know debris won’t turn your strip to scrap.
Watch the video to see it in action:
Atlantech Process Technology designs and builds machines that give our clients a competitive edge in today’s challenging market. We engineer brushes and machines that clean the surface of rolls, strip, and sheet so you get a high-quality finished product every time. You can trust our experience and expertise to provide creative, effective solutions that raise the profit and productivity of your line.
Our machines use propriety technology to optimize the mechanical surface-cleaning process, and our abrasive and non-abrasive bristle and non-woven brushes are some of the best brushes available to remove iron fines, residual oil, and zinc particles.
Ready for solutions?
Call David Thiemann at 816-382-9150 or email [email protected].
