Electronics Forum | Tue Feb 14 10:25:04 EST 2017 | swag
Pre-heat, pre-heat, pre-heat! Swap out your acetylene with some propane. Problem solved. Throw a potato in your solder pot while your at it...
Electronics Forum | Tue Jun 20 22:52:46 EDT 2000 | gary
How to calculate the delta T ? What's the allowable range for delta T value? we r not calculating this in our process, instead we r maintaining the pre-heat temp which we measure from topside of the bd. Thanks in advance
Electronics Forum | Fri Jun 19 14:05:12 EDT 1998 | BillChristian
We are discussing the importance of pre-hating components or the pcb in order to repair the board. I am interested in other peoples opinions on pre-heating.
Electronics Forum | Mon Jun 22 21:42:02 EDT 1998 | Dave F
| We are discussing the importance of pre-hating components or the pcb in order to repair the board. I am interested in other peoples opinions | on pre-heating. Bill: Some folks we talking about preheating capacitors earlier this month in the threa
Electronics Forum | Fri Jun 19 14:05:12 EDT 1998 | BillChristian
We are discussing the importance of pre-hating components or the pcb in order to repair the board. I am interested in other peoples opinions on pre-heating.
Electronics Forum | Mon Jun 22 21:42:02 EDT 1998 | Dave F
| We are discussing the importance of pre-hating components or the pcb in order to repair the board. I am interested in other peoples opinions | on pre-heating. Bill: Some folks we talking about preheating capacitors earlier this month in the threa
Electronics Forum | Mon Nov 19 14:10:13 EST 2007 | realchunks
Hi Taint, Both machines work OK. The big thing you may over look is pre-heat. Things like flux spatter/boil tend to come into play if you don't pre-heat. Change over, ease of programming, and service are also things to think of.
Electronics Forum | Mon Aug 03 17:15:56 EDT 2020 | rgduval
In general, no. If you've got the right BGA rework equipment, you should be able to locally heat the part area that you're reworking. Though, if you're finding defects related to thermal stress, it might not be a bad idea to pre-heat the rest of th
Electronics Forum | Thu Sep 03 19:48:36 EDT 2020 | charliedci
Not in our case, the pre-heat temp was not high enough. Also our pre-heat is only from top (KISS104).
Electronics Forum | Fri Apr 30 10:34:16 EDT 1999 | Ryan Jennens
Mornin! We just had vendor in here pitching a "low-temperature rework system" which was intriguing, but too expensive. He did get me to thinking though, beyond heating ceramic caps before hand-soldering them, it seems like it would be advantag
winsouce.jpg)
