Low-temperature Modification of Discarded Printed Circuit Board
Introduce cryogenic grinding and the components of Printed Circuit Board (PCB). Study the low-temperature modification of PCB, including mechanical property to find the influence of the different low-temperature on impact strength, flexural strength, shear strength of PCB. Tests show that impact strength and shear strength of PCB change sharply at - 30℃. Used ZKB-2 type double roll shear crusher to crush PCB to 20mm × 20mm particle size, in a temperature range of -30℃～ - 10℃, the product yield is 17％ higher than room temperature, and much lower temperature may deteriorate the product quality of crusher. Used R type mill to grind sample to minus 3mm under different working condition, the average power is decrease in evidence at - 30℃, freezing time for 5 minutes is best.
printed circuit board (PCB) low-temperature modification crush grind
ZHOU Cui-hong LU Mai-xi PAN Yong-tai CHEN Mao-he QIAO Xue-feng
Department of Environmental Engineering, Beijing Institute of Pectrochemical Technology, Beijing 102 Shcool of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing
国际会议
北京
英文
151-153
2006-08-03（万方平台首次上网日期，不代表论文的发表时间）