During the hot rolling or heat treating of steel, oxygen from the atmosphere reacts with the iron in the surface of the steel to form a crust that is made up of a mixture of iron oxides. The presence of oxide (or scale) on the surface of the steel is objectionable when the steel is to be subsequently shaped or cold-rolled and coated. Numerous methods have been used to remove iron oxides from metal surfaces. These methods include abrasive blasting, tubling, brushing, acid pickling, salt bath descaling, alkaline descaling, and acid cleaning. The preferred method in steel production is steel pickling.
Cold-rolled steel is manufactured from hot-rolled coil that has been chemically cleaned on the pickling line before being rolled. Cold rolling reduces the thickness of the steel and at the same time changes its mechanical properties. Speci?cally, the resulting steel is harder, but less malleable. Some steel is sold as a full hardness product, but other rolls are heated in a controlled atmosphere, that is they are annealed, to increase the formability of the steel. The annealed product is known as cold-rolled annealed steel. In some cases the annealed steel is rolled again after annealing, this process being termed re-rolling.
The Steelman SEMS System allows for the tracking of:
- Input of multiple master coils
- Welding together of the master coils
- Production recording including trough-put, yield loss, and work centre costs.
- creation of multiple WIP coils
- Tracking the genealogy of master coils to child tags
- Tracking of Master Mill Heat to child tags
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As a vertical ERP for Steel SEMS deploys quickly and configures easily whether greenfield, brown field or even an international joint venture.
