Electronics Forum | Thu Aug 11 21:43:19 EDT 2005 | Ken
Those temp stickers are useless unless you can stick them into the copper barrel. They can only determine "skin" temperature which has nothing to do with what is happening in the barrels. Your solder is filling the barrel then going cold. I'll gua
Electronics Forum | Mon Aug 22 10:33:23 EDT 2005 | davef
Q1. What is recommended viscosity standard? A1: There is no standard. ASTM D4040-05 "Standard Test Method for Rheological Properties of Paste Printing and Vehicles by the Falling-Rod Viscometer" is a test method that might work. For more, look her
Electronics Forum | Thu Nov 17 13:35:36 EST 2005 | mnguyen
AOI should be operated by a machine operator. I could get a monkey to stand around pushing buttons. A machine operator job responsibilty is not to change feeders and push buttons. They have to monitor the process for missing parts, misaligned, and pa
Electronics Forum | Thu Dec 08 14:26:58 EST 2005 | chunks
Start with your board first. Do you have resist/mask between the fine pitch? Is the finish HASL or a flat surface? If there is no mask/resist between the fine pitch leads you may want to reduce the apertures 5%. If the board is HASL, that means yo
Electronics Forum | Tue Feb 28 21:23:45 EST 2006 | Wave Master Larry
Alpha-numeric suck! Just kidding. We had a guy that was in charge of our waves who said the same thing. Never two sure what he meant by that. I've been runnning wave solder for 12 years and them Gels seem to get rid of the broken parts at wave. N
Electronics Forum | Mon Feb 20 15:03:56 EST 2006 | davef
Q1- Will we be able to select the materials (flux and alloy) and run the process depending only on ourselves, distributors� help, machinery documentation, web data and �trial and error?� A1- Your materials suppliers [eg Kester, Alpha Metals, etc] wil
Electronics Forum | Fri Feb 24 13:04:17 EST 2006 | patrickbruneel
Hi All, The change over to lead-free is as easy or as difficult as you want to make it The big problem I see with this lead-free transition is that there is no benchmark of acceptability and no defect data (yet) related to visual appearance of a sol
Electronics Forum | Wed Apr 26 12:38:33 EDT 2006 | TMC
I would suggest you do the following: get a sample / scrap board that you will be reflowing, attach thermocouples at various locations on the board, send the board to APS or whomever. Ask them to run a profile based on your solder pastes manufactur
Electronics Forum | Fri May 26 06:48:11 EDT 2006 | Mity-C
Good Morning, We also have several Mirtec M2HTL's. They have been responsible for taking SMT off of the defect radar screen. We are also using one to verify the through hole auto insert process. I have been told by our President that the Mirtec's we
Electronics Forum | Fri Jun 09 11:55:34 EDT 2006 | jbrower
Howdy Amol, As far as I can see, there aren't too many pitfalls with SN100C. Just make sure to keep all of your alloys seperated. The issues that I am working out right now is the profiles with our wave pallets and some of our larger components. We
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