Electronics Forum | Fri May 07 18:34:55 EDT 2004 | Ron Herbert
Bruce, You didn't mention whether you had checked the specific gravity of the flux. Also, most flux manufacturers recommend getting rid of the flux after 40 hours of use.
Electronics Forum | Sat Dec 15 06:34:54 EST 2012 | sowmya
Normally paste manufacturer specifies stencil life of a paste is 10 hours. the question is, if i run a continuous manufacturing for 40 hours, we will be adding 250 g of paste for every two hours. The addition of 250 g will be mixed with the paste whi
Electronics Forum | Mon Sep 23 12:44:48 EDT 2002 | daanterstegge
Another issue to look at is the efforts that it takes to become familiar with the machine. Where I work we are also looking into AOI machines, and one of our requirements (based on how simple the vendors say their machines are) is that after no more
Electronics Forum | Wed Aug 12 17:18:03 EDT 2015 | dyoungquist
Here is our solution: We run the assembly line 40 hours per week and use 500g cartridges of solder. We take 1 cartridge out Monday morning and leave it out until the end of the Friday shift when it is put back into the refrigerator. That means you
Electronics Forum | Thu Mar 16 22:19:38 EDT 2017 | deanm
First, reflow does not reset the clock for MSL exposure. The best solution is to run the second side before the exposure time expires. I am curious to know why they must sit for 40 hours. If that cannot be done, then store the assemblies in a dry c
Electronics Forum | Wed Mar 15 13:35:40 EDT 2017 | scotceltic
I have a double sided PCBA setup. I have MSL components on both assembly sides. When I run Assy Side one I am within the allotted hours remaining on the MSL component. I then wait 40 hours before running 2nd Assy side. By then the hours on the 1s
Electronics Forum | Mon May 24 10:45:04 EDT 1999 | John Thorup
| Can anyone help me with the correct baking cycle for removing moisture for PWB's. These are 10 layer double sided SMT. | | Thank You R. J. Klein Wassink in Soldering in Electronics states - 16 hours @ 105C or 40 hours @ 80C in a ventilated oven
Electronics Forum | Tue Sep 15 11:03:41 EDT 1998 | Dave Celestian
| Dave, | Sounds like you have material issues. Been there, done that. Tried 'em all. The best, longest lasting material I've found is called Durostone. It's made by a Roeschling, and most of the big fixture cutting houses now offer it as an option
Electronics Forum | Mon Sep 23 13:08:47 EDT 2002 | dragonslayr
Daan has made a valid point with regards to expertise and use of a machine. Yet I recognize that with advanced technology, trades must occur. A hghly sophisticated AOI unit can and will help reduce overall cost of production. Therefore, a need to ha
Electronics Forum | Mon Apr 28 04:02:39 EDT 2003 | chrissieneale
Hey, i'm back from the holiday. Progress on this board is quite good actually, althought the guy who i got to take off and replace all the bga's won't even look me in the eye!! He said he had a really tough job re-doing all the paste. 22 BGA's in a
