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On account of the increasing customer demands and the requirements of the fierce competition environment facing to the steelmaking industry, in order to improve the traditional quality management based on test, a quantitative process quality control method is researched and proposed in this paper, and a closed-loop quality control model based on SPC is established, in which x macr-control chart and...
Material machining often interrupted by various uncertainties, such as uncertain customer orders, delayed supplies, machine breakdown, absenteeism etc. The accurate description of the material process state is a must for the rearrangement of the job shop process schedule. This paper develops a modeling method of material process state based on production process. By defining material process state...
To solve the problem of production logistics control resulted from dynamic material batch in iron and steel industry, a lot-based tracking method is studied to realize the fine control of production logistics. It connects lots with processes by the process-lot-state vector, combined-lot-backward vector and combined -furnace-backward vector, establishing the tracking model of production logistics about...
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