Strength analysis of high strength steel hydraulic support
Based on the importance and complex working environment of hydraulic support,welding residual stress (WRS) measurement to main components were carried out respectively by X-ray diffraction and the measured data were further analyzed theoretically.Tests were made on the gob shield and base for two times,each was measured before and after heat treatment respectively.The results indicate that WRS in the base are higher than that in the gob shield before heat treatment.After heat treatment,residual stress (RS) level of gob shield and base decreased significantly,WRS in every region keep at a lower level and regional RS differences become smaller.Therefore,heat treatment processes is an effective method to reduce RS of hydraulic support after welding.Through the test results we measured,got the real residual stress level of gob shield and base,which can provide the basis of experiment to search for an appropriate welding and heat treatment process.
Hydraulic support strength residual stress x-ray diffraction method
Shuanwei Cui Yiliang Zhang
Beijing University of Technology, Beijing 100124, China
国际会议
香港
英文
676-679
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）