Electronics Forum: greg york (Page 1 of 4)

Peelable Mask

Electronics Forum | Fri Feb 23 18:55:39 EST 2007 | greg york

burns and melts in the pot sending the solder golden/yellow and drosses like mad. Lackwerke pieters germany ( not sure on spelling) Lead Free version works well,if you need the exact code I will get for you. cheers greg york

Looking for expert opinions, Solderability

Electronics Forum | Fri Jul 23 05:25:20 EDT 2004 | greg york

Got to agree with John on this, get a stencil cleaning wipe something a little more potent than standard IPA and wipe the surface thoroughly, this should produce a green residue of solder resist. If this does happen then ask your PCB vendor to look a

Wave solder: Vitronics-Soltec vs. Electrovert

Electronics Forum | Tue Jan 10 14:56:11 EST 2006 | greg york

Worked with Soltec 6622 with Leaded and Lead Free and is a very capable machine with some good knowledgable engineers to back it all up. Not seen a Nousstar yet in the UK nor a Lead Free Electrovert either thinking about it Greg York Technical Sales

Solder Saver ??

Electronics Forum | Tue Nov 07 10:37:36 EST 2006 | greg york

Buy decent solder in the first place especially with Lead free and the savings made could be around 50% of the dross production for Lead Free when compared to Leaded. Buy poor quality solder you will need a solder recovery unit of some format. Cheers

Fibers In Solder Joints

Electronics Forum | Thu Sep 07 17:24:29 EDT 2006 | greg york

normally one side is hydroentangled the other is not there is only one correct side which should be lint free and the other full of lint.that is wny people should never use rolls on both sides. Im of course talking typically (not sure of jnj brand) t

Chinese Wave Solder Machines

Electronics Forum | Tue Nov 21 19:07:36 EST 2006 | greg york

Serious question here, why do all the Lead Free Chinese Wave Soldering machines I have seen come in set at 5 Degrees angle - It doesn't work and bridges all over the place until th eangle is changeds. Are you guys finding this? Thanks Greg York

Wave soldering problem - strange colour of the solder

Electronics Forum | Tue Jan 16 18:13:25 EST 2007 | greg york

Try to process the composite pallet through the wave without any flux and view volume of smoke and if any residue is deposited in the wave when it exits. My guess is that the pallets are releasing some binders that are high boiling and this in turn c

Lead Free Wave Soldering

Electronics Forum | Fri Jul 23 04:27:59 EDT 2004 | greg york

Many trials conducted so far from single sided to Mixed technology dual wave with our LFB227/S 0.3Ag silver Lead free. Results are excellent, some say better than 63/37. One continueing problem though is the age old area of undercured resist and runn

Chinese Wave Solder Machines

Electronics Forum | Mon Nov 27 16:19:14 EST 2006 | greg york

Sorry Bill We have filled and supported over 250 Lead free machines now and have actually moved the angle back to 7 degrees the same as Leaded and the bridging problems have gone away.Dwell times are only fractionally longer and results are very goo

Wave flux and profiling

Electronics Forum | Wed Dec 20 04:43:36 EST 2006 | greg york

Any decent flux would volatise off with the heat of the wave unless absorbed into the solder mask. Test this by trying to clean in alcohol or common solvent aerosol, if it does not clean then it is probably Mineral Salts from solder mask fillers. Ano

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