《小型断路器抽样检验方案》毕业设计.doc

毕业综合实践文档题目：DZ47-63/1P-C5断路器的检验系别：电气电子工程系专业：电机与电器班级：电器0802学号：08033240作者：张秀指导老师：赵渝青专业技术职务：副教授2011年6月浙江温州目录1、毕业综合实践课题申报表2、毕业综合实践开题报告3、毕业综合实践任务书4、毕业综合实践5、毕业综合实践进程安排与考核表6、毕业综合实践指导教师评价表温州职业技术学院毕业综合实践课题申报表2010年12月20日题目DZ47-63/1P-C5断路器的检验专业电机与电器学生人数6人指导教师赵渝青职称副教授课题内容：(现状简介；重点要解决的问题)DZ47-63/1P-C5型断路器是小型断路器中的一种。它是一种具有过载与短路双重保护的限流型高分断小型断路器，适用于交流50Hz，额定电压400V及以下，额定电流63A及以下的电路中，作为线路过载和短路保护之用，也可以在正常情况下作为线路的不频繁操作转换之用。针对DZ47-63/1P-C5型断路器的检验，包括装配检验、电校检验、成品检验。其中装配检验包括静触头大小、线圈匝数、双金牌号、外观、底部工号打印、双金位置要求、调节螺丝等的检验。课题的准备情况及对学生的要求：1.掌握断路器检验方法和检验项目；2.熟悉相关的国家标准3.质量控制方法；4.给出质量判断，画出直方图。5.参照GB2828，设计抽样方案课题内容性质设计或制作课题来源性质结合顶岗实习课题实习地点及时间实训2#103专业教研室意见：签名：月日系主任意见：签名：月日温州职业技术学院毕业综合实践开题报告姓名：张秀学号：08033240专业：电机与电器课题名称：DZ47-63/1P-C5断路器的检验指导教师：赵渝青2010年12月20日本课题意义及现状、需解决的问题和拟采用的解决方案随着低压电器行业的快速发展，小型断路器逐步得到推广使用。目前我国使用比较多的有DZ47-63系列小型断路器，大量用于住宅、宾馆、办公大楼等终端配电系统与民用建筑，其产品质量涉及到千家万户的用电安全与人身财产安全，因此，对小型断路器进行严格检验具有重要意义。这次课题选取了DZ47-63/1P-C5断路器的检验，着重探究二次抽样检验的方法和质量控制方法，熟悉相关的国家标准，在实际操作中掌握检验的方法和检验项，提高试验能力和判断产品合格性的能力。由于抽样检验应用于产品质量检验时，样本不合格率与总体不合格率不一定相等，那么如何判断其总体质量状况是需要解决的问题。解决方案是通过各项试验记录数据并进行数据分析，根据GB/T2828.1-2003及GB/T10963-1-2005，确定抽样方案，从而进行检索，判断产品是否接收。当正常检验的方法不适用时，可以进行不同抽样方案的组合，采取其它方案的组合，这样可以提高检验的准确性。指导教师意见：指导教师：年月日专业教研室审查意见：教研室负责人：年月日温州职业技术学院毕业综合实践任务书专业电机与电器班级___电器0802____学生姓名____张秀一．课题名称：__________DZ47-63/1P-C5断路器的检验______________________二．原始资料要求：断路器的结构原理；试验的参数与设备；国家标准三．课题要求：熟悉相关的国家标准GB/T2828及GB/T10963.1-2005；确定二次抽样方案；学习质量控制方法；掌握断路器进行检验方法，运用质量控制方法并给出质量判断，在实际操作中针对需要解决的问题，作出解决方案。四．课题内容：1.掌握断路器检验方法和检验项目；2.熟悉相关的国家标准GB/T2828及GB/T10963.1-2005;确定二次抽样方案。3.质量控制方法；4.给出质量判断，画出直方图。五．课题完成时间：2010年12月20日至2011年6月份指导教师：教研室主任：系主任：温州职业技术学院毕业综合实践课题名称：DZ47-63/1P-C5断路器的检验作者：张秀学号08033240系别：电气电子工程系专业：电机与电器指导老师：赵渝青专业技术职务副教授2011年3月浙江温州课题摘要DZ47-63/1P-C5小型断路器的检验，是通过阅读国家标准，熟知小型断路器型号的含义、分类、工作原理和技术参数，学习抽样检验，通过检查、试验得到数据并进行观察判断，最后实施质量管理。本次设计重点探究二次抽样方案，通过查表判断产品是否接收。要掌握检验项目和检验方法，包括包装检验、一般检查、机械性能试验、工频耐压试验和脱扣性能试验，检验的方法可以通过目测和设备去完成，最终给出质量判断。最后学会质量控制方法，采用直方图对数据进行统计分析。为了给质量控制提供数据，实际进行了断路器的延时和瞬时特性试验，绘出直方图并分析其数据分布规律。关键词：断路器抽样检验方案质量控制目次1引言····································································································11.1断路器检验的意义················································································11.2断路器质量控制的重要性·······································································12DZ47系列小型断路器的介绍····································································22.1产品型号命名及其含义··········································································22.2分类··································································································22.3结构··································································································22.4工作原理····························································································62.5断路器的主要技术参数··········································································63DZ47-63/1P-C5小型断路器质量检验···························································93.1引用标准····························································································93.2质量检验的作用···················································································93.3质量检验的分类···················································································93.4DZ47-63/1P-C5小型断路器出厂试验·······················································104DZ47-63/1P-C5小型断路器的抽样检验·······················································154.1概述·································································································154.1抽样检验分类·····················································································154.3抽样检验实施步骤···············································································164.4二次抽样方案的应用············································································205DZ47-63/1P-C5小型断路器的质量控制方法·················································245.1概述·································································································245.2质量控制方法·····················································································245.3质量直方图························································································24结论·····································································································28致谢·····································································································29参考文献·····························································································3011引言1．1断路器检验的意义小型断路器在日常生活中应用得比较广，适用于交流50Hz，额定工作电压至380V，额定电流至63A，额定短路分断能力不超过6000A的配电线路中，作为过载和短路保护之用，也可以在正常情况下作为线路的不频繁操作转换之用。为什么要进行断路器的质量检验呢？第一，保证产品的质量合格；第二，确定产品质量等级或产品缺陷的严重性程度，为质量改进提供依据；第三，了解生产工人贯彻标准和工艺的情况，督促和检查工艺纪律，监督工艺质量；第四，收集质量数据，并对数据进行统计、分析和计算，提供产品质量统计考核指标完成的状况，为质量改进和质量管理活动提供依据；第五，当供需双方因产品质量问题发生纠纷时判定质量责任。1．2断路器质量控制的重要性在企业的生产过程中，不合格产品总是难以消除，一些企业会采取各种各样的方法进行着不屈不挠的斗争，在所有这些方法中，质量控制是最基本的手段。随着检验技术的不断发展，质量控制的方法将被赋予更广、更新的内容。在产品形成的过程中，质量控制能力对创造社会财富也有很大的影响。目前我国大多数企业的过程质量控制能力保持在3西格玛或4西格玛的水平，即生产零件的一次合格率大概在99.7%左右；当整机有100个零件构成时，整机的合格率只能保持在74.05%左右，造成废品、次品、返工、返修等损失占销售额的15～25%，况且有些