Electronics Forum | Sun Oct 01 02:35:13 EDT 2000 | Marvin Lopez
Do any of you good fellows know a good instruction manual, on the net pretaining to tin dip techniques.
Electronics Forum | Wed May 04 10:36:20 EDT 2005 | Rob
Hi Hannu, Just out of interest, are these big, heavy transformers, where the weight of lead in the solder will be less than 0.2% of the overall weight of the dipped part?
Electronics Forum | Wed May 04 10:44:55 EDT 2005 | russ
What exactly what "Ghastly" about it?
Electronics Forum | Wed May 04 08:41:01 EDT 2005 | Hannu
OK, granted, this is not exactly your hi-tech SMD production but pertains to lead-free so I'll post this anyway: Can anybody share their experiences on lead-free dip soldering of transformer terminals? I have not done any testing myself but have see
Electronics Forum | Wed May 04 12:14:18 EDT 2005 | rlackey
Hi Hoss, I was speculating - there are others out there with more experience in this field than me, who may know the definitive on this. I've heard rumours on transformers but nothing concrete. But I was guessing that the transformer (as a whole)
Electronics Forum | Thu May 05 03:22:38 EDT 2005 | Hannu
I do not mean big, heavy transformers but rather small ferrite core transformers, with ferrites in the range of EF16 .. EF40. The weight of the lead and its percentage of the total weight is not the issue here. We simply do not want lead-containing t
Electronics Forum | Mon May 09 01:30:40 EDT 2005 | Hannu
Hi Pat, And thanks for the sympathy :) This thing with ultrasonic transducer, is it something tried and trusted or is this a new idea for improving the wetting behaviour of leadfree alloys? This is completely new to me, can you please elaborate on
Electronics Forum | Wed May 04 11:54:29 EDT 2005 | HOSS
Rob, Are you hinting that the lead content of this component with dipped tin/lead solder would not be an issue with RoHS? If so, our understanding is that the legislation requires that the 6 banned substances cannot exist at greater than X% in any
Electronics Forum | Thu May 05 09:50:29 EDT 2005 | patrickbruneel
Hi Hannu, You just gave a very realistic and practical view of the lead-free dilemma. The main reason that your coil coating doesn't get removed is because of the inability of lead free alloys to wet the surface and conduct the heat. Higher temperat
Electronics Forum | Mon May 09 10:52:29 EDT 2005 | patrickbruneel
Hannu, First and for all I have a problem with your question "tried and trusted" for the simple reason that you are going to change too lead-free. Ultrasonic soldering or welding is not new, as far as I know it is only used applying the ultrasonic
