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Excessive Roughness on Skinpass Workrolls

2003

Hello,

I am working in HR skinpass mill as quality control supervisor. We are facing the main problem that is Work roll getting very rough after skinpassing of only 1000 ton material. Our requirement is max Ra=2.5 while we observe that we are getting 4 Rs after 1000 MT material process. How can I decrease the Ra ? and how can I extend the work roll process life? Any Help?

Thanx,

Dharmesh Kansara
a steel mill - Surat, Gujarat, India

Common practice is to chrome plate the rolls 0.001" thick. This prevents pick-up and retains surface longer.

Guillermo Marrufo
Monterrey, NL, Mexico
2003

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Dear Dharmesh bhai,

Tell me about Material you are using for rolls and also hardness of them with diameter of barrel. so after that I can suggest you by right way.

Shreyansh
- Ahmedabad, India
2003