Electronics Forum | Fri Jan 06 07:30:24 EST 2006 | chunks
Oh, got ya. Ouch, that had to suck. Do you mind telling us what you used and what it attacked?
Electronics Forum | Fri Jan 06 07:58:47 EST 2006 | Rob
It attacked our lovely AP25's, can't remember exactly what the fluid was as it was a loooong time ago now, but it was definelty specified by a telecoms OEM.
Electronics Forum | Tue Jan 24 15:16:07 EST 2006 | russ
Are you using an Omega (vibrating laminar flow) or other type of hole fill enhancement? If so, turn it down and this will help with the solder balls coming through the board. Otherwise it seems as though the flux is still to wet/liquidous when it
Electronics Forum | Tue Feb 07 16:45:32 EST 2006 | Mike
Can someone point out what sort of defects at the joint I can expect if solder is above liquidus for 3-4 minutes rather than the typical 1 - 1.5 minutes. Voids? Grainy joints? Poor wetting? Thanks
Electronics Forum | Wed Mar 01 03:39:10 EST 2006 | dave
Hi Davef, Basically there is very poor signs of wetting ,the hole fill from the top of the board is non-existant and we are using 63/37 solder bars (wave solder machine).
Electronics Forum | Fri Mar 10 03:16:07 EST 2006 | Slaine
Multicore make a HMP alloy liquidus at 298 degrees, Pb93Sn5Ag2.Ive used it to attatch thermocouples but they're difficult to solder as they dont wet.
Electronics Forum | Wed Mar 15 09:01:11 EST 2006 | Vick
The lead was inspected for coplanarity and it's within the specification it's designed for and doesn't show any variation in terms of height as compared to it's adjacent lead that has good wetting
Electronics Forum | Wed Mar 15 09:21:40 EST 2006 | vicknesh28
Thanks for the input. Just one question. Is what i am seeing normal? I am refering to the flux being between the lead and molten paste after the reflow process. This only found on a non-wetting lead.
Electronics Forum | Sun Apr 09 23:17:24 EDT 2006 | greatexpectations
Cmiller: Includes, caps diodes IC resistors, zener TR (does that help?) Just getting my feet wet here.
Electronics Forum | Fri May 05 09:31:07 EDT 2006 | finalassy
Yes the nozzels that we use are 99.8 percent iron. Does steel wet better, or do you just know that your works good.
