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Vapour phase Soldering

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free_electron:
vapor phase can be done reasonably cheap at home.

get an inductive single plate heater ( 50$ , amazon ) why ? no need to drill holes in the holding tank to shove a heating element in

get a nice high cooking pot compatible with inductive heaters. cooking pot needs a metal lid. if you can find a 'turkey fryer' style pot ( those are really deep and come with a basket )

put half an inch of galden in the pot and switch on.

use a fryer basket : put in the board on pegs so it does not contact the basket.

hang the basket so the board hangs in the cloud of vapor.

put on the lid. around the top of the pot : run metal tubing a couple of times and run cold water ( a bucket of water with some ice in it and a 12 volts dc pump will do the trick.
the same for the lid : attach a spiral of metal tubing and run cold water there as well.

you may want to attach an inverted cone to the lid so the condensation droplets fall down on the cone and then roll towards the side.

hmm.. difficult in words. lemme draw it

hang on

free_electron:
there ya go.

the cooled cone attached to the lid condenses the vapor and makes it run down towards its edges where the droplets fall back down , away from the pcb.

there is a swiss dude that built one on this principle. works well aparently

IconicPCB:
What happens to the working fluid in presence of flux  in solder paste?

mikeselectricstuff:

--- Quote from: IconicPCB on January 21, 2015, 11:04:42 pm ---What happens to the working fluid in presence of flux  in solder paste?

--- End quote ---
nothing - it's inert

IconicPCB:
Does it get contaminated?
If so how is contamination handled? distillation?

Is contaminated how is the equipment affected by contaminants?

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