基于产能约束的径锻生产线计划编制方法研究

发布时间：2018-08-05 15:36

【摘要】：生产计划是钢铁企业生产运营的关键环节之一。生产计划方案的改进可以降低生产线的库存、提高设备利用率、提高合同按时兑现率,从而降低成本、提高效率,提高企业的运营效益。本文首先对生产计划管理研究与应用现状进行了文献综述,在此基础上,运用甘特图、回归拟合等项目管理和数理统计的工具和方法,通过对XCC径锻生产线产线特点及产品特性分析、主体设备性能分析、生产工艺流程分析等,以及生产线生产计划运行体系现状的研究,发现径锻生产线生产计划编制及执行过程中存在的问题。针对上述问题,制定了相应的生产计划编制及执行体系方案。首先,确定生产线上关键的产能瓶颈环节,以设备的工艺时间为基础,通过统计分析和回归拟合的方法找到了关键设备产能与产品规格的相关性并确定其相关系数,制定了径锻机、电渣炉的产能及规格标产系数表。其次,以约束理论TOC为理论依据,制定了径锻生产线生产计划编制的若干条原则,在一定程度上减轻关键瓶颈工序的产能压力、释放瓶颈工序产能,从而提高整个生产线的生产效率。另外,针对径锻生产线生产过程的问题提出了其它改进方案,主要包括减小外部不确定性、细化日计划内容、规范计划下达流程、加强调度系统监管等,在一定程度保证生产计划方案的顺利实施。上述径锻生产线生产计划编制方案及生产运营改进方案从XCC厂径锻生产线的分析而来,在一定程度上对同类型的生产线的生产计划编制具有普适性意义。部分改进方案已在XCC厂径锻生产线进行了实际运行,并取得了良好的效果。
[Abstract]:Production planning is one of the key links in the production and operation of iron and steel enterprises. The improvement of production planning scheme can reduce the inventory of production line, increase the utilization rate of equipment, improve the rate of contract delivery on time, thus reduce the cost, improve efficiency and improve the operation benefit of the enterprise. In this paper, the current situation of research and application of production planning management is reviewed, and on this basis, the tools and methods of project management and mathematical statistics, such as Gantt chart, regression fitting and so on, are used. Through the analysis of the characteristics and product characteristics of the XCC diameter forging production line, the performance analysis of the main equipment, the analysis of the production process, and the present situation of the production planning and running system of the production line, Problems in production planning and execution of diameter forging production line are found. In view of the above problems, the corresponding production planning and implementation system program are worked out. First of all, the key bottleneck link of production line is determined. Based on the process time of the equipment, the correlation between the key equipment capacity and the product specifications is found by statistical analysis and regression fitting method, and the correlation coefficient is determined. The production capacity and standard production coefficient of diameter forging machine and electroslag furnace are established. Secondly, on the basis of constraint theory TOC, several principles of production planning of diameter forging production line are worked out, which to some extent reduce the pressure of production capacity of key bottleneck processes and release the production capacity of bottleneck processes. In order to improve the production efficiency of the entire production line. In addition, in view of the production process of the diameter forging production line, other improvement schemes are put forward, including reducing the external uncertainty, refining the daily planning content, standardizing the planning and issuing process, strengthening the supervision of the dispatching system, and so on. To a certain extent to ensure the smooth implementation of the production plan. The production plan and operation improvement scheme of the above mentioned production line are derived from the analysis of the XCC plant's diameter forging production line, which is of general significance to the production planning of the same type of production line to a certain extent. Some of the improved schemes have been applied in the XCC plant diameter forging production line, and good results have been obtained.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F273;F426.31

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