六西格玛管理在提升取向硅钢成材率中的应用

发布时间：2018-04-18 09:54

本文选题：六西格玛管理 + 取向硅钢　；参考：《东北大学》2014年硕士论文

【摘要】：硅钢是首钢迁钢公司少有的仍有盈利空间的钢铁产品,承担着首钢集团控亏的重要任务。由于钢铁市场整体形势不好,上游原材料价格上涨,下游市场需求萎缩,客户对产品质量的要求更加严格,希望产品价廉物美,这给企业质量控制和成本管理提出J了更高的要求。首钢迁钢取向硅钢成本高的主要原因之一就是成材率太低,仅为62.53%,较先进钢厂低20%以上。因此,提高成材率成为公司降低产品成本的首选研究课题。本文运用六西格玛管理理论对取向硅钢产品成材率低的问题进行研究,制定提高取向硅钢成材率的方案并实施,达到了提高成材率、降低制造成本的目标。论文主要内容如下:(1)介绍了首钢迁钢现状及取向硅钢的生产流程及特点,介绍了六西格玛管理的基本思想、发展过程以及六西格玛管理方法和实施步骤。(2)在对取向硅钢成材率关键客户需求和生产流程分析的基础上确定客户的关键质量需求和项目范围,制定成材率提升目标并将目标分解为各工序成材率,组建研究团队,明确沟通计划。(3)收集取向硅钢成材率数据,对生产流程稳定性以及取向硅钢成材率的西格玛水平进行分析,并采用快速改善措施对取向硅钢成材率进行了改善;(4)分析取向硅钢成材率损失的原因。对取向硅钢各工序生产流程进行分析,找出了各流程成材率的损失项,测算了各流程的损失量,并对工艺流程的增值非增值性进行了分析,对非增值流程产生的根本原因进行分析,找出了 10项对成材率影响最大的因子。(5)针对找出的关键影响因子拟立了 10个攻关子项目并从筛选出了两个子项目优先实施,制定了攻关子项目的实施方案和控制方法,研究了项目风险的控制。对取向硅钢成材率的改善效果进行检查确认,对改进措施的贡献度进行分析,计算经济效益。
[Abstract]:Silicon Steel is a rare steel product of Shougang Qiangang Co., which still has profit space. It is an important task for Shougang Group to control losses.Because the overall situation of the steel market is not good, the prices of raw materials in the upper reaches rise, the demand in the downstream market shrinks, the customers' requirements for product quality become more stringent, and they hope that the products will be cheap and good at good prices.This puts forward higher requirements for quality control and cost management of enterprises.One of the main reasons for the high cost of reorientation silicon steel in Shougang is that the yield of finished steel is too low, which is only 62.53, which is more than 20% lower than that of the advanced steel plant.Therefore, improving the rate of finished products has become the first choice for the company to reduce the cost of products.In this paper, the problem of low yield of oriented silicon steel products is studied by using six Sigma management theory, and the scheme of improving the yield of oriented silicon steel is worked out and implemented, which achieves the goal of increasing the rate of finished steel and reducing the manufacturing cost.The main contents of this paper are as follows: (1) the paper introduces the present situation and production process and characteristics of oriented silicon steel in Shougang, and introduces the basic idea of six Sigma management.The development process and six Sigma management methods and implementation steps. 2) determine the customer's key quality requirements and project scope based on the analysis of key customer requirements and production processes for the yield of oriented silicon steel.Set up the target of improving the yield of silicon steel and decompose the target into the rate of each process, form a research team, make clear the communication plan, collect the data of the yield of oriented silicon steel, analyze the stability of the production process and the Sigma level of the yield of oriented silicon steel, and analyze the stability of the production process and the sigma level of the yield of oriented silicon steel.The reasons for the loss of the yield of oriented silicon steel were analyzed by improving the yield of oriented silicon steel.This paper analyzes the production process of oriented silicon steel, finds out the loss items of the finished product rate of each process, calculates the loss amount of each process, and analyzes the value added non-increment of the process flow.Based on the analysis of the root causes of the non-value-added process, 10 factors that have the greatest impact on the yield of the finished product are found. Ten key impact factors are proposed and two sub-projects are selected for priority implementation.The implementation scheme and control method of key project are established, and the control of project risk is studied.The effect of improving the finished rate of oriented silicon steel was checked and confirmed, the contribution of the improvement measures was analyzed, and the economic benefit was calculated.
【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】：F273;F426.31

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