Certain paste mfg specify 6 hours paste thawing time to normalize the temperature. I am using solder paste softerner to spin the paste taken out from fridge for 9 minutes and measure the paste temperature in jar.It is around 26'c(same as the ambient temp).My question,is this the correct procedure?I use it immediately after spinning.
I'd be curious if a microwave would activate the flux. I'd also suspect that the metal content of solder might just give you that excellent "microwave+fork" effect. I can see this R+D failing miserably. -Russ
You can put metal in a microwave (at least you can mine) as long as it doesn't contact the enclosure, but there's no way you'll get consistent heating of the volume in a microwave, even if it employs a "carousel".
Solder paste softeners are designed to allow solder paste reach ambient temperature during shorter time period (only 5-10 minutes instead of hours). You are preparing your material in right way. No reason to worry.
Well, you don't want your paste to spoil! It'll give it a bad aftertaste.
Actually, we refrig our paste mainly cause our stock room gets rather on the toasty side. Jars left un-friged will cause the metals to sink and leave a puddle of flux on top. Now you can remix this back in, but it's one more variable that depends on an operator. We try to take such variables away from our operators. So since we need to refriderate other materials to slow their cure, we also keep the paste in there. We simply take out a few jars at the begining of the shift for the NEXT shift. 8 hours in an unopened jar works well and requires hardly any mixing.
Now, Captain Nabbers needs to inquire how I can get me mits on one of dem plasma arc accumulator/solder paste homogenizing devices?