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What is a wave solder machine?
Wave Solder Machines Wave soldering machines are used to solder both conventional through-hole and surface mount components on a printer circuit board. Motorized lead and lead-free solder pots offer flexibility and quick change. These machines also can increase through-hole speed with dual-wave soldering capabilities.
What happens if you have too much solder?
Too Much Solder It is entirely possible that this blob of solder wets neither the pin nor the pad and is not a reliable electrical connection. The best evidence of proper wetting (and good electrical contact) is a nice concave surface as on the joint on the far left.
What is manual soldering?
Hand soldering is a skill, obtained by training and experience. Soldering irons are heated by an electrical element. The heat must be transported from the element to the tip with which the soldering is done. The metallic piece with a tinned tip, acting as heat store and heat conductor, is called a soldering bit.
How is wave soldering used in printed circuit boards?
Wave soldering is a bulk soldering process used in the manufacture of printed circuit boards. The circuit board is passed over a pan of molten solder in which a pump produces an upwelling of solder that looks like a standing wave. As the circuit board makes contact with this wave, the components become soldered to the board.
When did surface mount printed circuit boards become popular?
Drilling is a considerable part of the cost of a through-hole printed circuit board. Surface-mount technology emerged in the 1960s, gained momentum in the early 1980s and became widely used by the mid-1990s.
What’s the contact time between the solder wave and the Assembly?
The height of the solder wave is a key parameter that needs to be evaluated when setting up the wave solder process. The contact time between the solder wave and assembly being soldered is typically set to between 2 and 4 seconds.
What kind of heater is used for wave soldering?
The preheating area normally uses hot air heaters that blow hot air onto the boards as they pass towards the wave soldering machine. On some occasions, particularly if the board is densely populated, infra-red heaters may be used as well.