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HASL or HAL (for hot air (solder) leveling) is a type of finish used on printed circuit boards (PCBs). The PCB is typically dipped into a bath of molten solder so that all exposed copper surfaces are covered by solder.
Stations with hot air guns are used in cases when just a soldering iron is not enough. Disassembling microchips requires a hot air gun. SMD components soldering with hot air is much more convenient. Hot air guns usually come with special nozzles for hot air stream regulation. Popular manufacturers: Hakko, Quick, Accta, Goot, etc.
Reflow soldering is a process in which a solder paste (a mixture of prealloyed solder powder and a flux-vehicle that has a peanut butter-like consistency [8]) is used to stick the components to their attachment pads, after which the assembly is heated by an infrared lamp, a hot air pencil, or, more commonly, by passing it through a carefully ...
A hot air gun or hot air station is used to heat devices and melt solder, and specialised tools are used to pick up and position often tiny components. A rework station is a place to do this work—the tools and supplies for this work, typically on a workbench .
Heating may be accomplished by passing the assembly through a reflow oven, under an infrared lamp, or (mainly for prototyping) by soldering individual joints with a hot air pencil. Reflow soldering with long industrial convection ovens is the preferred method of soldering surface mount technology (SMT) components to a printed circuit board (PCB ...
Anything with a base unit with provision to maintain a stable temperature, pump air in either direction, etc., is often called a "station" (preceded by rework, soldering, desoldering, hot air); one, or sometimes more, tools may be connected to a station, e.g., a rework station may accommodate a soldering iron and hot air head. A soldering iron ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Hot_air_solder_levelling&oldid=784819584"
Pages in category "Soldering" The following 24 pages are in this category, out of 24 total. ... Hot air solder leveling; J. Joining technology; L. Lead-tin solder; R.
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