超声作业指导书.docx
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超声作业指导书.docx
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超声作业指导书
超声作业指导书
十堰市金海丰精密铸造有限公司
超声波作业指导书
铸件检测是一个很复杂的过程,尤其是铸铁件更是如此。
首先,铸造出来的工件表面都比较粗糙,如果有条件建议可以做机加工,这样虽然说浪费了点时间,但是检测效果要好的多。
另外一点,为啥说铸件比较难检测呢。
因为铸件里面的分子结构比较复杂,不像标准钢件结构比较简单,里面球化率颗粒比较粗大,超声波进入到工件里面以后就会产生漫反射,往往很多波都被漫反射所吸收掉。
仅仅只有少部分波反射回来,而且都比较杂乱,所以才造成比较难判断。
其次,其他的检测手段根本检测不了铸件,所以,只有用超声波的办法。
那么,我们该如何让结果更准确呢,我在这里对铸件检测的部分工件进行了分析,并做成指导书,希望能帮到各位同仁。
一、仪器参数设置
1.接收端口
2.发射端口
3.充电插座
4.串行通讯口
5.液晶显示屏
6.指示灯
7.功能键盘
8.仪器支撑架
9.USB接口
仪器外观图
1.电源开关键
5.功能键区域
2.参数调节键
6.菜单翻页键
3.特殊功能组
7.功能组区域
4.LED指示区
1、接头模式设置
主菜单——脉冲——接收——工作方式,改成双,如下图所示。
2、灵敏度参数设置
(1)、首先调整底波到80%。
调节方法将DB值增加,使一次底波到80%。
如下图所示。
(2)、增加6-12DB灵敏度值作为扫描灵敏度值。
如下图所示。
3、检测数据保存设置
(1)、保存在本机,按主菜单保存按钮,如下图所示。
(2)、保存在U盘,按主菜单打印按钮,如下图所示。
打印到U盘电池显示边上会再U上面显示一个!
号。
4、数据的调出,与删除
(1)、数据调出,首先进入选择主菜单——数据——存储——数据调出,按+-,在按数据调出,确认是否调出。
(2)、数据删除,首先进入选择主菜单——数据——存储——数据删除,按+-,在按数据删除,确认是否删除。
二、缺陷对比分析
1、产品规格
2、波形数据
(1)、有缺陷,波形状态,解剖后照片对比
(2)、无缺陷,波形状态,解剖后照片对比
(3)、无缺陷,但草状回波明显,解剖后照片对比
(4)、无缺陷,台阶造成两束波峰
(英文版)
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