Edge wiping process improvement with TAIFUJet®
Edge wiping process
A Japanese steel manufacturer had issues with insufficient water removal during the edge wiping process. Edge wiping is a process used to remove excess coatings from the edges of steel strips, such as aluminum, zinc etc.). This process ensures a uniform coating thickness across the strip and prevents different issues like coating buildup, drips etc.
Benefits of TAIFUJet®
- Wide design
- Powerful
- Higher quality
- Less defects
The outline of the project:
A Japanese steel mill had an issue during edge wiping (water removal from the edges of steel plates). This process was performed using general-purpose air nozzles in the steel plate surface treatment process after cold rolling. However, because the air nozzles were fixed to target both ends of a specific width of steel plate, there was an issue of insufficient water removal. For example, when a narrow steel plate was flowing in, the nozzles on both ends would target the outside of the width of the steel plate, and the air would not hit the edges, resulting in poor water removal.
System used for this application
TAIFUJet® air nozzles
Our TAIFUJet® air nozzles are known for their high efficiency and low noise.
The solution
The effective spray width of our standard air nozzle is 42mm, but since this was not sufficient in this case, Ikeuchi Japan designed a custom product that widens this to 100mm. This allows for a wider drainage width which could solve the issue of the customer.
Furthermore, Ikeuchi Japan proposed a layout in which these wide nozzles were placed symmetrically at multiple locations in the flow direction of the steel plate, with different width intervals. With this layout, the outer nozzles are used when the steel plate width is wide, and the inner nozzles are used when the steel plate width is narrow, allowing for flexible response even when the plate width changes.
System used for this application
TAIFUJet® air nozzles
Switch to our high impact energy-efficient TAIFUJet® air nozzles. They are also known for their lowered noise level.
The result
After installing the custom-made TAIFUJet® with a 100mm width, it became possible for the customer to reliably drain water, even if the width of the flowing steel plate changes. This has drastically reduced draining defects, contributing to maintaining a stable product quality.
On the photo to the right, the custom-made 100mm wide TAIFUJet® can be seen.
Advantages of TAIFUJet®
- Wider design
- More powerful
- Reduced draining defects
- Higher product quality
- Custom-made
- Lower noise
Customer stories: real experiences, genuine satisfaction
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