비의류제품

a membrane system for semi-aqueous defluxing

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 434
many printed wiring board assemblers and metal fabricators are investigating new cleaning agents and technologies to replace cfcs semi-aqueous cleaning is a good alternative because it provides superior performance and ecological advantages over cfc-113/methanol and aqueous cleaning technology. in the semi-aqueous process, printed wiring board assemblies are cleaned in an organic solvent the cleaning solvent is then rinsed from the parts with water. the solvent is insoluble in water, and the vast majority of the solvent can be separated from the water by decantation. rinse water, with the small amount of remaining organic material can usually be discharged to a potw. however, many users prefer to recycle the rinse water. closed-loop technology based on membrane separation techniques is particularly suited for treating rinse water effluent from semi-aqueous installations. data from du pont's membrane technology development program are presented
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