The Boeing Company

China University of Petroleum

Ying Lin

Hui Wang

Jia Liu

Peng Xu

Jun Yao

Han Wu

Xuejing Shen

Rui Shen

Yanbin Hu

Jiaqing Zeng

Libin Yang

Ge Zhao

Xiaoxia Shi

Xiao Yang

Yuanyuan Wang

Guangqing Zhang

A fully automatic online aero aluminum sorting and recovery system based on LIBS (Laser Induced Breakdown Spectroscopy) technology, which belongs to the field of aero aluminum sorting and recovery technology, and is suitable for online sorting, detection and recovery of large batch of aero aluminum. The fully automatic online aero aluminum sorting system based on LIBS technology provided in the present invention consists of six portions: a sample feeding unit (), a surface treatment unit (), a material positioning unit (), a LIBS analysis and detection unit (), a transfer unit () and a sorting and recovery unit (). The system according to the invention can be used to realize the automatic online detection, sorting and recovery of aero aluminum, and the system does not have requirements on the surface condition of the recovered aero aluminum samples. The sorting accuracy rate is greater than 90% and the sorting rate is not less than 1 block per second.

Automated aero aluminum scrap sorting system based on laser induced breakdown (LIBS) technique

An experimental method for indoor real-time dynamic monitoring of a hydraulic fracture width, comprising the steps of: test piece preparation: assembling a prefabricating mold and fixing a fiber grating therein; mounting a simulated wellbore in the prefabricating mold, pouring agitated cement mortar into the prefabricating mold, and the cement mortar is solidified to form a test piece; mounting the test piece into a confining pressure chamber of a true triaxial hydraulic fracturing simulation device, connecting a liquid injection line to the true triaxial hydraulic fracturing simulation device, and connecting the fiber grating to a modem that is connected to a computer; hydraulic fracture width monitoring test: injecting liquid into the confining pressure chamber of the true triaxial hydraulic fracturing simulation device through the liquid injection line to apply three-direction confining pressures to the test piece, injecting liquid into the simulated wellbore, and starting the fiber grating and the modem to dynamically monitor the hydraulic fracture width in the test piece; and when a hydraulic fracture inside the test piece reaches an outer surface of the test piece, ending the test.

Experimental method for indoor real-time dynamic monitoring of hydraulic fracture width

Growing community of inventors

Beijing, China

Ying Lin