• Adjusting Roll Margin

When you choose a Shell’s “Material Type” from the “Plate” type, you are allowed to consider a certain amount of every course as Roll Margin.

Fig. 50 – (How to Adjust Roll Margin)

This amount depends on the equipment which rolls plates. Typically, we consider the amount zero if the equipment consists of four rollers. Otherwise, a different number between 100 and 250 millimeters is considered as roll margin. This number will be present in plate supply calculations, but since it is removed after the rolling process, it will not be included in part weight calculations. Because this amount is different for each diameter, thickness, as well as factory, it can be adjusted for each course separately. Keep the fact in mind that this number must be taken into account for “Nozzle” and “Skirt”, as well.

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