James Perrett wrote:
ef37a wrote:And lastly..DON'T leave the iron 'cooking'! Modern stations get the tip to working temp' in less than 60secs so if you have a fag/pee/'er indoors callout break, switch off.
I must admit that I've never had a problem leaving a decent (Weller, Oryx or Antex) iron on for a whole day. We used to do it in the TV repair workshop where I worked as a teenager and I've done it in the lab ever since.
Yes James but in a workshop the iron is in regular use, being tinned/cleaned all the time. I maintained some 100 Weller stations in a factory. They would be used for about an hour doing some 2000 joints on RJ45 jacks or Krone blocks then 'parked' for the rest of the day, several hours untouched. This is the cooking I mean that tarnished tips.
Then, the (mostly lady) solderers found the stock #7 bit too 'slow' and used a long form #8 conical bit. These blacken more quickly. Note, the #7 is 'ok' for general work but a chisel tipped #8 is more useful and jeeust about hot enough for small Pbfree work. The #9 is better but beware, it is close to the ignition point of paper and wood!
'Damp' sponges? Human nature says, "If damp is good, soaking wet must be better!" This is where the thermal shock comes in . The caveat came from visiting Weller technical people who came to sort us out for Lead free work. http://www.maplin.co.uk/p/48w-mains-sol ... 0wodtn4FZA
Have had one of those ^ for some years now, fine for 'domestic' use and can be cranked up for Lead free work. (in case the link does not work. Maplin prod code N34FB.