低压铸造水冷机壳X射线检测图像技术分析与应用  

Analysis and Application of X-ray Inspection Image Technology for Low Pressure Casting Water-cooled Casings

作　　者：陈晓斌 韩伟 颜建 柯世金 詹泽鑫 Chen Xiaobin;Han Wei;Yan Jian;Ke Shijin;Zhan Zexin(School of Mechanical Engineering,Guangzhou City University of Technology)

机构地区：[1]广州城市理工学院机械工程学院

出　　处：《特种铸造及有色合金》2023年第1期119-121,共3页Special Casting & Nonferrous Alloys

基　　金：2022年广东省普通高校特色创新资助项目(自然科学)(2022KTSCX182)。

摘　　要：针对低压铸造水冷机壳铝合金薄壁组织内部常出现浇不足、缩松和气孔等缺陷,以及由于内部螺旋水道砂芯松散、断裂造成的粘砂、水路不通等问题,采用X射线照相检测DR系统对铝合金水冷机壳铸件进行无损伤高精度扫描测量分析,并运用OpenCV图像增强技术处理图像,使内部组织异常的低压铸件在最短时间内得到识别、剔除及隔离,从而达到品质精细控制的目的。The defects of low-pressure castings such as insufficient filling, shrinkage porosity and air hole often appear in the structure of aluminum alloy thin-wall low-pressure casting of water-cooled casing, as well as the invisible quality problems of internal structure such as sand sticking and water blockage caused by loose and broken sand core of internal spiral water channel.Digital X-ray photography detection DR system was adopted for non-destructive high-precision scanning measurement to analyze aluminum alloy water-cooled casing castings, and OpenCV image enhancement technology was used to process the images. Therefore the low-pressure castings with abnormal internal structure can be identified, eliminated and isolated in the shortest time, achieving fine quality control.

关 键 词：X射线 DR系统 铸件缺陷 无损检测 图像增强 

分 类 号：TG249.2[金属学及工艺—铸造] TG245