Книга: Ahmed Hammad «Microstructure and Mechanical Behavior of Eutectic Sn Zn Solder Alloys»
|
Производитель: "LAP Lambert Academic Publishing" Medical studies have been shown that Pb is a heavy metal toxin that can damage the kidney, liver, blood and the central nervous system. Therefore, rapid switching and great effort for seeking Pb-free solder alloys with a balance of thermal, mechanical and soldering properties as a replacement for Sn Pb eutectic alloy. From January, 2004, European nations will adopt Pb-free solder alloys in all electronic assemblies, according to Directive on Waste from Electrical and Electronic Equipment (WEEE). In addition, other environmental protection legislation was also made to inhibit the disposal of Pb-containing garbage in the dump. The new lead-free solders need to have a similar melting temperature to existing Sn Pb solders and adequate mechanical properties to preserve the reliability of the electronic packaging products. Also, the new lead-free solders need to be nontoxic. ISBN:9783659638343 Издательство: "LAP Lambert Academic Publishing" (2014)
ISBN: 9783659638343 |
См. также в других словарях:
Brazing — This article is about the metal joining process. For the cooking technique, see braising. Brazing practice Brazing is a metal joining process whereby a filler metal is heated above and distributed between two or more close fitting parts by… … Wikipedia
