QG大规模定制生产硅钢的质量控制研究

发布时间：2019-03-13 08:15

【摘要】：冷轧硅钢生产工序长、产线多、周期长,而客户群体呈现小而散的特点,客户个性化需求与规模化生产的矛盾较为突出,因此有必要采用大规模定制的生产模式,来提升硅钢产品的市场竞争力。但面向大规模定制的产品研发技术和制造管理技术与传统生产模式不同,特别是质量管理体系、方法和工具将发生巨大变化。本文以QG公司硅钢生产为背景,针对大规模定制模式下的质量控制方法进行了研究。结合质量管理现状调查,描述现有质量设计和过程质量控制业务流程及存在问题,并对问题原因加以分析。针对质量设计存在的问题,本文重点从客户需求如何有效识别、质量设计如何技术展开、质量设计如何确保在生产过程的实施等方面进行了问题分析。结合问题研究改进方法:一是探索了用户技术服务型和先期导入型需求识别方式;二是研究QFD质量功能展开方法和模块化设计方法,通过QFD逐级技术展开,把用户需求VOC转化为关键质量特性CTQ,进而把CTQ展开为产品设计参数和生产工艺参数;三是研究FMEA分析和控制计划CP在质量设计与生产实施结合过程中的应用。针对过程质量控制存在的问题,本文从过程质量控制的标准、控制手段、动态调整手段和过程控制评价方法等四个方面进行了重点分析。根据问题探索了过程控制的改进方法:首先探索和推广标准化作业、过程控制图、过程质量判定等新的管理工具和方法;然后结合QG硅钢生产过程,研究质量动态修正的控制方法,即"动态纠偏和动态多样化定制",使前后工序在质量控制上无缝衔接;最后针对过程质量控制水平,建立工序控制参数稳定性和过程质量损失的评价方法,促进工序质量控制水平的提高。
[Abstract]:The production process of cold rolled silicon steel is long, the production line is many, the period is long, and the customer group is small and scattered, the contradiction between customer's individual demand and large-scale production is more prominent, so it is necessary to adopt mass customization production mode. To improve the market competitiveness of silicon steel products. However, the product research and development technology and manufacturing management technology for mass customization are different from the traditional production mode, especially the quality management system, the methods and tools will change greatly. In this paper, based on the silicon steel production of QG Company, the quality control method under the mode of mass customization is studied. Based on the investigation of the current situation of quality management, this paper describes the existing quality design and process quality control business processes and the existing problems, and analyzes the causes of the problems. In view of the problems existing in quality design, this paper focuses on how to effectively identify customer needs, how to develop quality design technology, how to ensure the implementation of quality design in the production process, and so on. The research and improvement methods combined with the problems are as follows: one is to explore the user technical service-oriented and lead-in demand identification methods; The second is to study the QFD quality function deployment method and modular design method. Through the QFD step-by-step technology, the user needs VOC is transformed into the key quality characteristic CTQ, and then the CTQ is expanded into the product design parameter and the production process parameter. Third, the application of FMEA analysis and control plan CP in the process of quality design and production implementation is studied. Aiming at the problems existing in process quality control, this paper focuses on the analysis from four aspects: process quality control standard, control means, dynamic adjustment method and process control evaluation method. According to the problems, the improvement methods of process control are explored: firstly, new management tools and methods such as standardized operation, process control chart and process quality determination are explored and popularized. Then, combined with the production process of QG silicon steel, the control method of quality dynamic correction, namely "dynamic deviation correction and dynamic diversification customization", is studied to make the front and rear processes seamlessly connect in quality control. Finally, according to the level of process quality control, the evaluation method of process control parameter stability and process quality loss is established to promote the improvement of process quality control level.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F426.31;F273.2

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