摘要：随着社会经济的不断发展，各个行业的竞争也越来越激烈，传统生产以及管理技术面临着一定的挑战，另外，人力成本近年来不断上升，原本依靠低廉人工成本的制造业优势已经逐渐丧失，这就迫使许多企业要对原有生产管理技术等进行一定的转变，企业需要寻求更低成本、更高效、更能灵活应变市场变化的生产管理方式。本文以在D公司为期两个月的实习作为基础，在对产线存在问题进行探究分析后,发现存在产线不均衡、生产周期长、在制品堆积严重、信息传递不及时、人员操作普遍不规范等问题，导致企业成本偏高。基于以上现状，实习期间运用各种工业工程以及精益的手法对产线进行改善，如价值流分析、产线平衡、工时测定、SLP法等，其中本文主要运用价值流技术，通过分析4902产品的现状价值流，绘制现状价值流图，以一种清晰明了的方式将其中信息流、物料流、时间流上存在的浪费展现出来，并依据理想状态绘制未来价值流图，为了达到理想价值流对应制定并实施了一系列的改善措施，由于此论文属于团队项目中的一部分，改善部分具体内容在本篇文章中没有具体的体现，详情请参见徐宇轩、宋兴同学的论文。而标准作业是在检验实施效果后对效果较好的做法进行标准化，制定对应的作业标准，让改善效果得以维持，最终结果是产线减少3名操作人员，人均率提高38%，节约成本达29万元以上。同时在另外一条产线上也实施了类似改善，获得了良好的效果。因此，利用价值流进行产线改善具有良好的实践性，可以为类似的产线改善工作开展提供参考建议。

关键词：精益生产；价值流；改善；标准化；标准作业

Research on standard operation of production line of D company based on value stream

Abstract：With the continuous development of social economy, the industry increasingly fierce competition, the traditional production technology and management faces great  challenges. In addition, rising labor costs in recent years, had to rely on low labor cost advantage of manufacturing industry has gradually lost, which forced many enterprises to carry out some changes to the original production management technology so, for lower cost, more efficient and more flexible changes in production management. In the D company for a period of two months of practice as the basis, analyzed the problems existed in the production line, found that, long production cycle, WIP, serious information transfer is not timely, operation is not standardized, resulting in the enterprise cost is high. Based on the above situation, during the internship using a variety of industrial engineering and lean tools for the improvement of the production line, such as value stream analysis, line balance, time study and SLP method, this paper mainly uses value stream technology, analysis of the current situation of 4902 products, drawing the current VSM, in a clear that way the information flow, material flow, flow time of waste out, and on the basis of the ideal state draw the future VSM, in order to achieve the ideal value of the corresponding flow has formulated a series of measures to improve the implementation and implementation effect, after inspection standard of good practice, formulate corresponding operation standard, improving effect can be maintained, the end result is the production line to reduce 3 people, per capita rate increased by 38%, saving the cost of more than 290 thousand yuan. And draw on the practice of production line, in another production line also achieved good results. Therefore, the use of value stream for production line improvement has good practice, but also has a strong promotion, and can be extended to similar production lines to improve the work carried out.

Keywords: Lean Production; Value Stream; Improvement; standardization; Standard Operation