Integrated Production And Marketing Environment In The Cold Rolling Production Planning And Scheduling Research

The paper researches planning and scheduling problem of cold-rolling production line which based on Baosteel's cold-rolled carbon steel manufacturing project in conditions of integrated management of producing and selling. This paper firstly summarizes main theories about computer integrated manufacturing system in cold-rolled production, then introduces the project's research result-daily planning method based on logistics balance aiming to smooth logistics, deliver goods in time and reduce cost. It solves dynamic problems with multi-kinds, multi-stage, multi-target, multi-constraint by means of "driven by downstream inventories each working procedure self-optimizes the production plans".The paper is focused on production scheduling problems and establishes a new model for lot sizing production of flow shop problems with finite intermediate storage in cold-rolled system environment and use genetic algorithm to find appropriate solutions. Simulation results show the effectiveness of the model and the feasibility of the algorithm.The model and algorithm proposed to solve production scheduling problems in this paper can be extended to semi-continuous mass production industries such as iron and steel, chemicals and hydropower industries. It is of great practical significance and widely applicability...