Esther Earl. (Redirected from Esther Day) Esther Grace Earl (August 3, 1994 â August 25, 2010) was an American author, internet vlogger, online personality and a Nerdfighter, as well as an activist in the Harry Potter Alliance.
To begin controlled cooling, allow the kiln to cool as fast as it can for the first 300Â° so the controlled portion of the firing is taking place about 300Â° lower than the cut-off temperature.
If you look at some reflow profiles on the web, you will see that (generally) commercial reflow ovens will execute a profile in about 6 minutes. 2 minutes to heat up the board, 2 minutes at about 385F, 2 minutes at about 420F, cool down.my oven could not achieve temperatures that fast.he heat the laptop up in a towel and heat gun looked to iffy. So, I did a search on reflow and BGA. Folks, there are lots of documents out there that describe the process... it is how they put the BGA devices on in the first place.