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New trends in the chemical pretreatment of metal surfaces
Author(s) -
Heitbaum Joachim
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200209)187:1<43::aid-masy43>3.0.co;2-m
Subject(s) - hazardous waste , automotive industry , raw material , environmentally friendly , manufacturing engineering , waste management , process engineering , engineering , chemistry , organic chemistry , aerospace engineering , ecology , biology
The driving forces for the development of new chemical pretreatment products are both the need for more environmentally compatible processes and improved productivity at the customer. The first trend is met by introducing easily biodegradable surfactants, by avoiding waste and waste water by closed loop pretreatment systems and by substituting hazardous chemicals such as chromates. In the second trend, pretreatment steps are transferred from part lines upstream to the coil lines of sheet metal manufacturers thereby reducing assembling, and painting costs in automotive and white goods industries as well as in architectural application.