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Steel Procurement

Steel Procurement. Steel Procurement. Steel: flame cut Issue: magnetic properties? Thermal process FeO Oxy-fuel cutting Acetylene + oxygen Bring iron to flame temperature Add. Oxygen to oxidize Fe O 2 blows FeO away from cut How much of material is affected by heat? . Flame Cutting.

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Steel Procurement

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  1. Steel Procurement

  2. Steel Procurement • Steel: flame cut • Issue: magnetic properties? • Thermal process • FeO • Oxy-fuel cutting • Acetylene + oxygen • Bring iron to flame temperature • Add. Oxygen to oxidize Fe • O2 blows FeO away from cut • How much of material is affected by heat?

  3. Flame Cutting Wood, W.E. Heat-affected Zone Studies of Thermally Cut Structural Steels. Federal Highway Administration and Oregon Graduate Institute of Science and Technology, 1994.

  4. Hardness

  5. FEA Simulation Efficient simulation of oxygen cutting using a composite heat source model. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2012.10.011

  6. Flame cutting

  7. Finite Element Simulation k, cp: constant Q: 6.44 x 109 W/m3 v: 3 mm/s Worst case?

  8. Temperature Profile

  9. Summary • Flame-cutting • Can affect magnetic properties • If carried out correctly: limited effect? • Annealing? • Monitoring PRY • fiducial markers?

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