中山大学学报(自然科学版)2007，Vol.46Issue(z1)：151-153,3.
废旧电路板低温改性研究
Low-temperature Modification of Discarded Printed Circuit Board
摘要
Abstract
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.关键词
电路板/低温改性/破碎/细碎Key words
printed circuit board (PCB)/ low-temperature modification/ crush/ grind分类
资源环境引用本文复制引用
周翠红,路迈西,潘永泰,陈茂和,乔雪峰..废旧电路板低温改性研究[J].中山大学学报(自然科学版),2007,46(z1):151-153,3.基金项目
北京市教委基金资助项目(KM200510017004) （KM200510017004）
