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Technical Library | 2019-07-02 23:02:05.0
The introduction of lead-free solders resulted in a selection of different chemistries for solder pastes. The higher melting points of lead-free alloys required thermal heat resistant rosin systems and activators that are active at elevated temperatures. As a result, more frequent maintenance of the filtration systems is required and machine downtime is increased.Last year a different method of cleaning reflow ovens was introduced. Instead of cooling down the process gasses to condensate the residues, a catalyst was used to maintain the clean oven. Catalytic thermal oxidation of residues in the nitrogen atmosphere resulted in cleaner heating zones. The residues were transformed into carbon dioxide. This remaining small amount of char was collected in the catalyst. In air ovens the catalyst was not seen as a beneficial option because the air extracted out of the oven was immediately exhausted into the environment. When a catalyst is used in an air environment there is not only the carbon dioxide residues, but also water. When a catalyst is used in an air reflow oven the question is where the water is going to. Will it condensate in the process part of the oven or is the gas temperature high enough to keep it out of the process area? A major benefit of using a catalyst to clean the air before it is exhausted into the environment is that the air pollution is reduced dramatically. This will make environmental engineers happy and result in less pollution of our nature. Apart from this, the exhaust tubes remain clean which reduces the maintenance of air ovens.This paper will give more detailed information of catalyst systems during development and performance in production lines.
Industry News | 2009-11-29 22:32:56.0
BEAVERTON, OR — November 2009 — A-Laser, a division of FCT Assembly and a premier laser cutting service specializing in the ablation of ultra-thin metals and plastics, provides laser cutting service applications for UV systems.
Industry News | 2010-03-10 15:28:28.0
KREUZWERTHEIM, GERMANY - March 2010 - SEHO Systems GmbH, a worldwide leading manufacturer of soldering machines, has redesigned the process gas cleaning system for its reflow ovens to further reduce maintenance costs in electronics production.
Industry News | 2009-03-10 16:11:29.0
OSAKA, JAPAN � March 2009 � Nihon Superior Co. Ltd., a supplier of advanced soldering and brazing materials to the global market, announces that it will showcase a new, expanded range of SN100C products in booth 2564 at the upcoming APEX exhibition and conference, scheduled to take place March 31-April 2, 2009, in Las Vegas.
Industry News | 2011-03-21 13:24:25.0
Indium Corporation's Global Product Manager, Semiconductor and Advanced Assembly Materials, Dr. Andy Mackie , will be presenting at the Surface Mount Technology Association (SMTA) Intermountain Expo and Technical Forum, March 22, 2011 at Boise State University, Boise ID.
Industry News | 2009-09-17 15:06:04.0
OSAKA, JAPAN — September 2009 — Nihon Superior Co. Ltd., an advanced soldering and brazing supplier to the worldwide market, announces that it will showcase a new, expanded range of SN100C products in booth 624 at the upcoming SMTA International, scheduled to take place October 6-7, 2009 at The Town and Country Resort and Convention Center in San Diego, CA.