Socio-economic aspects
Cold rolling of flat products

The productivity of a tool depends on its design and the reliability of its operation.

Topomaintenance makes equipment [35] more reliable. Its two basic concepts are :

• the user's ownership of the tool, which implies daily inspection and appropriate care to avoid breakdowns;

• overall efficiency, which indicates the percentage of real time during which the machine operates at optimum speed, delivering compliant products.

The 2 table defines :

• availability or gross run rate ;

• performance or pace rate;

• a level of quality ;

• and an overall yield which...