The MIIS Eprints Archive

Annealing steel coils

McGuinness, Mark and Sweatman, Winston and Baowan, Duangkamon and Barry, Steve (2008) Annealing steel coils. [Study Group Report]



Cold rolled steel in the form of coiled sheets requires heat treatment (annealing) in order to release stresses and reform the crystalline structure. During this process the whole coil must be heated to the required temperature and then maintained at this temperature for a period of time.

At New Zealand Steel the process takes place inside a batch annealing furnace. The MISG group considered the problem of where the cold point lies within the steel coils, i.e. what is the last part of the coil to reach the required temperature, and how long does it take to reach this temperature? Challenges include deciding what the boundary conditions are on a coil, and dealing with the nonlinearity and anisotropy caused by height-dependent gaps within coils.

Item Type:Study Group Report
Problem Sectors:Materials
Study Groups:Australian and New Zealand Mathematics in Industry Study Group > 25th MISG [Wollongong 28/1/2008 - 1/2/2008]
Company Name:New Zealand Steel
ID Code:208
Deposited By: Michele Taroni
Deposited On:18 Feb 2009
Last Modified:29 May 2015 19:49

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