Degassing of Pure Copper Melt by Ultrasonic Cavitation

2018 2nd International Conference on Advanced Technologies in Manufacturing and Materials Engineering

Li, J.W.^1 ; Ma, X.^1 ; Yang, L.L.^1 ; Teng, Y.L.^1 ; Li, F.^2 ; Meng, L.H.^3

College of Materials Science and Engineering, Dalian Jiao Tong University, 794 Yellow River Road, Dalian, Liaoning

116028, China^1

School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei

430074, China^2

Ying Kou Vocational and Technical College, Yingkou, Liaoning

115000, China^3

关键词: Electric power;    High intensity;    High intensity ultrasonic;    Oxygen concentrations;    Oxygen measurements;    Reduced pressure test;    Ultrasonic cavitation;    Ultrasonic treatments;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/389/1/012025/pdf
DOI  :  10.1088/1757-899X/389/1/012025

来源: IOP

【 摘 要 】

The effect of high intensity ultrasonic vibration (UV) on degassing of pure copper has been studied in this paper. The methods of reduced pressure test (RPT) and direct hydrogen and oxygen measurements are used for the evaluation of degassing efficiency on hydrogen and oxygen concentrations. The results showed that high intensity UV had a significant degassing effect for the commercially pure copper (CP-Cu) melt. With UV, the density index Di was reduced from 11.94 to 1.13%, and the product of hydrogen-oxygen concentration ([%H]•[%O]) in the liquid Cu was decreased to 1.440×10-5 from 6.624×10-5. It was also found that electric power and ultrasonic treatment time could influence the degassing efficiency.