ISSN:
0305-6120
Source:
Emerald Fulltext Archive Database 1994-2005
Topics:
Electrical Engineering, Measurement and Control Technology
Notes:
Recycling technology for printed wiring boards (PWBs) with mounted electroniccomponents was studied for the purpose of disassembling the boards, recovering useful materials, andreusing these materials. An automatic removal method was developed for the electronic componentson the basis of a combination of heating to above the solder melting temperature and applying impactingthe shearing forces. Most of the electronic components were recovered undamaged and the solderwas able to be recovered as particles. The solder remaining on the board was recovered by abradingthe board surface and by using a heating-impacting process. After these processes, the resinboard (a cured epoxy resin board reinforced with glass fibre)was pulverised and separatedinto a copper-rich powder (copper: 82 Wt%) and a glass fibre andresin mixture powder (glass fibre-resin powder) by gravimetric and electrostaticmethods. The recovered electronic components, solder and copper-rich powder were usedas valuable metal resources for refining. Moreover, the recovered glass fibre-resin powderwas found to be a useful filler for plastic products such as epoxy resin and ABS(acrylonitrile/butadiene/styrene copolymer) resin.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1108/03056129710370196
