Electronics Forum | Thu Nov 19 20:05:14 EST 2009 | davef
Density. There is a difference between lead (.410 lbs. per cubic inch) and tin (.254 lbs. per cubic inch). The same volume of tin-based solder, therefore, weighs approximately 1/4 less than a lead-based material. This adds up to more joints per pound
Electronics Forum | Thu Oct 07 14:40:31 EDT 1999 | Carol Zhang
I have a board, 4 spacers needed to be soldered on the board first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, there will be no p
Electronics Forum | Sat Nov 21 12:28:00 EST 2009 | flipit
There is evidence of lead being used in soldering 5000 years ago in Mesopotamia. Not a big issue for most people doing SMT but the poster should also understand why percent metal is adjusted for different solder paste alloys. You print by volume b
Electronics Forum | Thu Nov 20 14:49:54 EST 2014 | joe98375
Greetings, I am looking into buying a wave solder machine for medium production of 100% through hole boards (~8.5"X12" dimension, not many layers, no high density part areas,
Electronics Forum | Thu Jul 17 20:20:12 EDT 2008 | davef
Wave set-up DOE * Immersion depth [1/3 to 2/3 of board thickness] has the least impact of any variable in wave soldering. * Contact length the greatest impact. * Control flux density, time through preheaters, top side temperature as the board reaches
Electronics Forum | Thu Jun 21 22:04:18 EDT 2001 | davef
This is my attempt at beating the "Fuzzburg 7" translator used on the SMTnet Forum that mashes everything it sees. Below the next paragraph are three paragraphs,each with a common numering sequence, where each paragraph represents the columns of a t
Electronics Forum | Sat Mar 18 02:21:31 EST 2006 | pavel_murtishev
Good morning, Once again a met annoying solder beading issue while producing board with PLL (leadless, contacts from the bottom side of the package). Board has very high placement density and beads appear near PLL package only. This package is finep
Electronics Forum | Thu Oct 07 15:39:59 EDT 1999 | Carol Zhang
| I have a board, 4 spacers needed to be soldered on the board | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, there will b
Electronics Forum | Thu Jul 06 03:43:22 EDT 2017 | jamesbarnhart
Electronic devices required higher speed, I/O capability, and density to meet standard requirements. Automated robotic soldering solutions that meet the demands of applications are too challenging for hand soldering. Manual soldering, even with the m
Electronics Forum | Tue Oct 12 08:48:16 EDT 1999 | Carol Zhang
| | I have a board, 4 spacers needed to be soldered on the board | | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, there wi
