Electronics Forum | Thu Feb 18 15:25:13 EST 2010 | spitkis2
An air temperature tolerance of +/- 3 deg C along a 200mm width would not play a significant role on the board's temperature due to its thermal mass. However if the air temperature varies by 10C along the conveyers width, I can see how a 5 degree va
Electronics Forum | Thu Oct 04 15:08:10 EDT 2001 | steve_
Hello everyone! Can somebody explain the advantages/disadvantages of a conveyer type reflow oven VS a batch oven. In conveyer type ovens, is the belt(conveyer) moving at a constant rate? If I have board that requires 20 seconds in pre-heat, 60 sec
Electronics Forum | Fri Nov 04 11:29:46 EST 2005 | JeffP
Jay, I work for a company that manufactures batch reflow ovens however, I will try to be as subjective as possible. For the most part, what others have posted is true. Yes, there is one heating chamber and if the heater does not have enough power
Electronics Forum | Wed Aug 03 08:06:11 EDT 2005 | Stefan
I got my hands on a used, refurbished machine out of China, which didn�t look quite as advertised. Machine plates, logbooks and other documents are missing. According to the machine supplier, the plates are swapped from older machines to trick custom
Electronics Forum | Wed Aug 03 08:21:30 EDT 2005 | danhui888
I got my hands on a used, refurbished machine out > of China, which didn�t look quite as > advertised. Machine plates, logbooks and other > documents are missing. According to the machine > supplier, the plates are swapped from older > machines
Electronics Forum | Wed Apr 24 21:34:01 EDT 2002 | davef
Search the fine SMTnet Archives. Guidelines * Control: Flux specific gravity, preheater temp, conveyer speed, solder temperature. * Two most important parameters are: solder temperature & dwell time * Contact time. The optimum contact (dwell) time
Electronics Forum | Thu Oct 01 07:09:53 EDT 2009 | g2garyg2
Good Morning Here are a few thoughts. When mfg large flex circuits you will need to fixture them to create a stable production environment. As such, the foot print fo the product grows. So you may require systems that can handle 20 inch width by 38 i
Electronics Forum | Thu May 07 12:54:01 EDT 1998 | DARRYL SCHLOSSER
| I am running a board that is .062" thick and has components that over hang the edge of the board by .090". I have bottom side smt components (chip caps and resistors only) and use the turbulent wave to help solder the components. The problem I am
Electronics Forum | Fri Dec 27 02:11:31 EST 2019 | anteiv
Hello, We are having problems with SMD wave soldering (ERSA) used flux is BALVER ZINN 390-RX-HT https://www.balverzinn.com/tl_files/balverzinn/downloads/intern/TDB/PDS_390-RX-HT_EN.pdf https://www.balverzinn.com/tl_files/balverzinn/downloads/datenb
Electronics Forum | Wed Jun 03 11:17:17 EDT 1998 | Brian Stumm
If your board is single sided you should convey it on a mesh belt conveyor. Unfortunately most assemblies these days are double sided which makes it difficult to convey on the mesh belt. Plus with the increasing population on SM boards the weight is
