Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Physical Testing and Chemical Analysis(Part A:Physical Testing)》 2017-08
Add to Favorite Get Latest Update

Reason Analysis on End Cracking and Spalling of a 2510 Steel Plastic Mold Slider Block

JIN Linkui;HUANG Chiwei;RUAN Yuhuang;OU Hailong;ZOU Wenqi;Guangdong Dongguan Quality Supervision Testing Center;National Mold Product Quality Supervision and Inspection Center;Dongguan Yidong Electronics Co.,Ltd.;  
The reasons of end cracking and spalling of a 2510 steel plastic mould slider block were analyzed by means of macro analysis,hardness testing,chemical composition analysis,fracture analysis,metallographic examination and so on.The results show that white and bright deterioration layer produced at the thread surface during electric processing thread hole of the slider block.Because the deterioration layer was very brittle,micro cracks and spalling easily formed here and became the fatigue crack source.Under the action of alternating stress caused by the bolt spring,the cracks propagated outwards and extended along the concentric arc line around the thread hole,and finally resulted in the end cracking and spalling failure of the slider block.At the same time,the serious banded and network carbides reduced the material strength,which accelerated the fatigue cracking and spalling failure process of the slide block.
【Fund】: 东莞市东城街道产学研合作资助项目
【CateGory Index】: TG142.15;TQ320.52
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved