Quality control in the preparation and allocation of charge materials for the blowing process

As a rule, quality control in an iron and steel mill is governed by three m ain factors: process management, time management and personnel management. The primary goal, also in a steel plant, is constancy of all the processes. In this connection, process management encompasses both the control of the process itself and the charge materials allocated to that process stage. T he function of time management consists in the scheduling of events and the selective control of time intervals. Personnel management ensures a compar able level of knowledge and high level of qualification for all the personn el and is characterised by the processes' and procedures' acceptance. A comprehensive system of quality control implemented in production at HKM is presented, taking as an example the preparation and allocation of scrap and hot metal. The traceability of the monitoring and control mechanisms is highlighted, and attention is drawn to the potentials for a continuous imp rovement process as a result of these mechanisms.