is a reliable means of obtaining clean metal by preventing excessive oxide formation, removing non-metallic inclusions from the aluminum melt, and preventing and removing oxide build up from furnace walls.
The impact of the revisions to the secondary aluminum MACT rule resulted in the savings of many thousands of dollars in compliance costs, while further reducing toxics emissions and chlorine fluxing
The effects of different rotary degassing and fluxing
techniques, rotor designs and fluxes on the quality of the molten metal in the crucible furnaces, as well as on the quality of a finished cast product, are presented.
Plant B combines its degassing and fluxing
practices into one operation.
Different techniques are available; e.g., foam, wave, drum, spray fluxing
. For today's flux chemistries, spray fluxing
using atomizing air nozzles is preferred.
* Present day fluxing
practices are discussed, including the use of flux in one or more stages within the treatment and processing of molten aluminum.
To do so, a spray fluxing
system must apply the flux uniformly to the bottom surface of the board and into the through-holes.
Heels encourage expansion cracks, and the metal may still contain fluxing
material that will be released into the hot crucible.
Wave soldering has a number of sub-processes, which include fluxing
, preheating, soldering and cooling.
Two independent ways to achieve clean metal - fluxing
by injection and rotary degassing - will be discussed in this article.
The Dip-Flux Feeder facilitates flip chip assembly by fluxing
flip chips and other component types prior to placement.
Foundries are relying to a greater extent now on fluxing
of melts to assure the best physical and mechanical properties in cast metals.
of a selective pallet can lead to areas with large amounts of partially heated flux residues.
Chlorine in flux should be minimized to under 10 vol.% of total fluxing