Rolls quality is controlled on each step of production. In process of Metal preparation we carry our chemical composition snap by spectral method using automatic analyzer «OBLF». Before mechanical operation templates from each roll are cut off, for further examination in order to:
– Control microstructure of rolls shell and roll necks;
– Determine hardness and mechanical properties of shell and necks;
– Determine size and location of graphite on various depths of shell.
Preservation treatment, packing and shipment
Before shipment in order to protect rolls from corrosion and mechanical failures we cover them with corrosion-preventing layer and after that pack them with flexiguard. We encase roll necks with wooden strips in order to prevent them from transportation damage. Preservation and packing allows transport of the rolls by all types of transport.