Mar 7, 2007 #1 OffRoad10 Materials Mar 7, 2007 5 0 0 US Has anyone come against a problem called onion skin, aka kish? This problem is a formation of a difficult to pickle scale on primary steel. Let me know if anyone has heard or solved this problem.
Has anyone come against a problem called onion skin, aka kish? This problem is a formation of a difficult to pickle scale on primary steel. Let me know if anyone has heard or solved this problem.
Mar 8, 2007 #2 EdStainless Materials May 20, 2004 15,893 0 36 US What alloy? What is the hot process? and How good is your blasting prior to pickle? = = = = = = = = = = = = = = = = = = = = Rust never sleeps Neither should your protection http://www.trent-tube.com/contact/Tech_Assist.cfm Upvote 0 Downvote
What alloy? What is the hot process? and How good is your blasting prior to pickle? = = = = = = = = = = = = = = = = = = = = Rust never sleeps Neither should your protection http://www.trent-tube.com/contact/Tech_Assist.cfm
Mar 8, 2007 Thread starter #3 OffRoad10 Materials Mar 7, 2007 5 0 0 US Grades - high carbon (0.50 and higher); 4130; 10B38 Hot Process - CSP caster into a 7 stand rolling mill. Approximatley 1600 finishing temp and 1190 coiling. No processing prior to pickling; no scale breaker at pickle line either. Upvote 0 Downvote
Grades - high carbon (0.50 and higher); 4130; 10B38 Hot Process - CSP caster into a 7 stand rolling mill. Approximatley 1600 finishing temp and 1190 coiling. No processing prior to pickling; no scale breaker at pickle line either.
Mar 9, 2007 #4 EdStainless Materials May 20, 2004 15,893 0 36 US How good is your high pressure water blast between rolling stands? You have patches of tight scale. You may need to blast or break to get rid of them. = = = = = = = = = = = = = = = = = = = = Rust never sleeps Neither should your protection http://www.trent-tube.com/contact/Tech_Assist.cfm Upvote 0 Downvote
How good is your high pressure water blast between rolling stands? You have patches of tight scale. You may need to blast or break to get rid of them. = = = = = = = = = = = = = = = = = = = = Rust never sleeps Neither should your protection http://www.trent-tube.com/contact/Tech_Assist.cfm
Mar 9, 2007 #5 EdStainless Materials May 20, 2004 15,893 0 36 US Has this changed recently? If so you might look into the caster slag additives and the rolling lubes. = = = = = = = = = = = = = = = = = = = = Rust never sleeps Neither should your protection http://www.trent-tube.com/contact/Tech_Assist.cfm Upvote 0 Downvote
Has this changed recently? If so you might look into the caster slag additives and the rolling lubes. = = = = = = = = = = = = = = = = = = = = Rust never sleeps Neither should your protection http://www.trent-tube.com/contact/Tech_Assist.cfm