Electronics Forum | Thu May 15 15:42:33 EDT 2003 | davef
Unless you have a reason, set your top and bottom to the same temperature. Tip: Don't run dry cleaners bags through the oven. Tell us about: * Paste you intend to use. * Specifics of your oven, including length of each of the heating and cooling zo
Electronics Forum | Wed Aug 04 00:22:17 EDT 2004 | Shean Dalton
and one more thought about your original question, if the flux does look really strange and out of place, then inspect the reflow oven. A great amount of flux condensation in the reflow oven's cooling zone can cause crystalized flux to become airbor
Electronics Forum | Fri Nov 19 10:56:20 EST 2004 | rlackey
Hi Mike, We mainly use chillers for the operators - we build a lot of thick & palletised boards that retain the heat. Having a chiller means we can pick the board up earlier after the oven & it's cooler. With leadfree you will have higher temperat
Electronics Forum | Mon Dec 18 04:11:11 EST 2006 | greg york
Probably because the flux manufacturers have deemed it necessary to increase flux volume by 20 - 25% compared to Leaded this is why more is being left over. Really not convinced of this increase in volume actually does anything. Black residue will be
Electronics Forum | Fri Dec 15 00:20:17 EST 2006 | hemu_me
As we have vitronics oven(SMR610A) made in december 1997,which has 5 heating And 2 cooling zones. we just want to confirm that is there any possibility of damage oven parts with long run for soldering of lead free components in this model? if anyone
Electronics Forum | Tue Feb 27 12:45:08 EST 2007 | russ
Boy it is good to see the wave master back in action! I mean really guys, is Larry the only one here who knows that the lead turns into vapor in the oven and then in the cooling zones it falls back onto the board and creates the solder joints? P.
Electronics Forum | Fri May 18 07:50:05 EDT 2007 | georgeiii
Hi All! I have a reflow owen Heller 1800W. I have a problem with it - din't work a cooling zone. There isn't radiator - can anybody send me a photo of this radiator and where I can find it ? Pump is not connected - I don't have a electric schematic f
Electronics Forum | Fri Feb 03 08:18:53 EST 2017 | rob
To be fair, making lots of the same PCBAs of the same relatively low thermal mass is not particulary challenging for any of the major manufacturers if you have enough heating and cooling zones. Probably key for you would be local support for servic
Electronics Forum | Mon Feb 10 10:41:29 EST 2020 | SMTA-Tony
Hello Phil, As the other respondents have mentioned, the cooling rate is not easily controlled and varies based on the oven and board design, as well as the settings of the last few zones and cooling zones. In general, the board is going to cool in
Electronics Forum | Thu Nov 30 10:38:39 EST 2006 | billwestiet
You are cooling too fast, and some flux and paste is worse than others... Can you control your cooling zones? Water Temp (higher)? Or Water Flow (less, effectively less cooling)? Changing water temp is prefferable over flow if you can do it. I h
