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Galvanizing Solutions
What are the most common operating issues you experience in the zinc pot used
in your hot dip continuous galvanizing line? Based on extensive plant visits
and face-to-face conversations with line operators and supervisors, the industry
consensus is:
Area of Concern |
Number of Sites |
% of Sites |
| Flaking |
8
|
23%
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| Zinc dust |
5
|
15%
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| Top Dross-General |
11
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32%
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| Transition |
5
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15%
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| Roll Build-Up |
13
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38%
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| Roll Lock-up/Skidding |
10
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29%
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| Vibration/Flutter |
4
|
12%
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| Sink roll Bearing Life |
30
|
88%
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Click on YOUR operational issue for a solution from Metaullics
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Roll "Build Up" - When the bath dross or top dross adheres to the sink roll, causing a thick layer to form on the outside edge and fills in roll grooves.
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Flaking - Iron oxide builds up in the furnace during a shutdown, leading to large particle "flakes" and refractory dropping into the snout during start-up. | |
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Skidding - Caused on sheet finish when correcting or stabilizer roll does not turn freely. Roll lock up.
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Zinc Dust - Vaporizing of molten zinc bath during a shutdown. Sits on bath surface, adhering to inside of snout. | |
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Vibration/Flutter - Can occur at start-up until bearings set. Can occur during normal operation with bearing wear. Has direct effect on the ability to control film thickness.
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Top Dross General - Dross sitting on the surface in the inlet snout has the tendency to adhere to the sheet surface affecting coating quality. | |
Low
Sink roll Bearing Life -  |
Transition Issues - Lines that produce both galvanize and galvanneal coated sheet will experience a period of time where bottom dross "becomes" top dross. |
Contact us and we would be pleased to discuss our products specifically designed to help eliminate your issues.
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The information, recommendations and opinions set forth herein are offered solely
for your consideration, inquiry and verification and are not, in part or in
total, to be construed as constituting a warranty or representation for which
we assume legal responsibility. Nothing contained herein is to be interpreted
as authorization
to practice a patented invention without a license. |