面向SMT的SPC软件设计与实现

发布时间：2018-05-02 08:28

本文选题：表面贴装技术 + 统计过程控制　；参考：《电子科技大学》2011年硕士论文

【摘要】：质量控制是生产车间质量管理中的一个核心问题,是提高产品质量的关键。统计过程控制(SPC, Statistical Process Control)技术在推动工业生产过程中生产率的提高和产品质量的改善方面起到了巨大的推动作用。统计过程控制(SPC)技术在制造行业的成功推广实施,为众多企业创造了不可估量的价值,也为SPC在软件行业的应用奠定了理论和实践的基础。印刷电路板(PCB)生产过程质量控制的目的是通过对表面贴装技术(SMT)流水线上生产的PCB产品最终质量形成过程的关键因素进行控制,实现从源头上对产品质量的控制,以便及早发现问题,缩短检测返修和调试的周期,降低生产成本,提高产品的合格率。本文研究了统计过程控制技术的基本原理和思想,重点介绍了控制图技术,包括控制图的设计原理、控制图的类别、在受控状态和失控状态下的控制图判别准则以及在质量管理中如何使用控制图。着重分析了在SMT(Surface Mount Technology)生产中操作者、工艺方法、设备和原材料等对PCB加工过程质量的影响,找出了其中的关键因素。研究了SMT生产中产品质量和可靠性的评价方法、统计过程控制在SMT生产过程中的应用。深入分析了SMT生产对SPC软件的需求,设计了SPC软件的总体框架;详细设计了数据录入、控制图、报表等关键功能,并在此基础上实现了SPC软件。在九州公司SMT车间进行的测试表明,软件具备关键工艺参数过程监控的能力,为生产过程提供了一个早期报警系统;减少了对常规检验的依赖,用系统的检测方法替代了大量的检测和验证工作。
[Abstract]:Quality control is a core problem in the quality management of production workshop and the key to improve product quality. Statistical process control (Statistical Process Control) technology plays an important role in promoting the improvement of productivity and product quality in industrial production. The successful promotion and implementation of the statistical process control (SPC) technology in the manufacturing industry has created inestimable value for many enterprises and laid a theoretical and practical foundation for the application of SPC in the software industry. The purpose of quality control in the production process of printed circuit board (PCB) is to control the key factors of the final quality formation process of PCB products produced on the surface mount technology (SMT) assembly line, so as to realize the control of product quality from the source. In order to detect problems early, shorten the cycle of inspection rework and debugging, reduce the production cost and improve the qualified rate of products. In this paper, the basic principle and thought of statistical process control technology are studied, and the control chart technology is introduced emphatically, including the design principle of control chart, the category of control chart. The criterion of control chart in controlled state and out of control state and how to use control chart in quality management. The influences of operator, process method, equipment and raw materials on the quality of SMT(Surface Mount technology are analyzed, and the key factors are found out. The evaluation method of product quality and reliability in SMT production and the application of statistical process control in SMT production are studied. This paper deeply analyzes the demand of SMT production for SPC software, designs the general framework of SPC software, and designs the key functions of data input, control chart and report form in detail, and realizes the SPC software on this basis. Tests conducted in the SMT workshop of Kyushu Company show that the software has the ability to monitor the process of key process parameters, providing an early warning system for the production process and reducing reliance on routine testing. A large number of detection and verification work has been replaced by the system detection method.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH186;TP273

【引证文献】