[sdiy] washing PCB's

[Wheaton, Simon]

- Moisture can mix with flux to form hydrochloric acid.

- Workpiece inspection is both easier and more thorough if the joint is
clean.

 

I was taught to clean the pcb, component leads, and solder with
isopropyl alcohol just before soldering to remove any surface
contaminants, as well as after soldering to remove flux. The flux is not
intended to be a general cleaning agent, it is to remove any oxides
present at the time of soldering, most of  which is due to the heating
of the metals. Also that I should cut the solder with wire cutters,
rather than just pulling/bending it to break off pieces, as this
stretches the solder and leaves sections without flux.

 

Simon

Canberra

AUSTRALIA

________________________________

From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl] On Behalf Of Brett Maddaford
Sent: Tuesday, 21 June 2005 9:03 AM
To: synth-diy at dropmix.xs4all.nl
Subject: [sdiy] washing PCB's

 

- is the purpose just to remove the flux thats left after soldering and
what happens if you dont wash it off? or are there other reasons? 
  
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