Electronics Forum | Wed Mar 21 13:47:16 EDT 2012 | jax
To have an Operating Temp (Tool Classification) within your range, you might want to try. PB85 (Pb85/Sb10/Sn5) SMT is normally processed using Vapor Phase but can also be achieved with Nitrogen assisted Convection Reflow depending on size and compl
Electronics Forum | Mon Oct 26 13:38:35 EDT 2009 | davef
Type K thermocouples are the most commonly used in the electronics industry. There are various types of thermocouple types that can be used. Examples include [Ray Prasad]: • Type K ¾ nickel-chromium vs. nickel-aluminum (most commonly used); tempera
Electronics Forum | Fri May 26 10:17:21 EDT 2006 | pjc
Here are settings for a Vitronics SMR500 oven for Indium Corp. 5.1 No-Clean Pb Free solderpaste, the product profiled was of medium thermal mass: RTS, Temp C 120, 170, 195, 248, 264, conveyor speed was 43cm/min (17"/min.) Peak temps were reached in
Electronics Forum | Thu Aug 11 16:20:54 EDT 2005 | pjc
I have seen good results on OmniFlo 5 for Pb Free solderpastes PROVIDED the boards are low to medium thermal mass and have no high conveyor speed (high production) requirements. Max peak temp you can set on O5 is 280C, enough to get 230C on-board tem
Electronics Forum | Wed Mar 30 17:32:55 EDT 2011 | gaz
Hi, We are using ws488 sn100c paste. Anyone have a profile for a 5 zone oven that has worked well for you?
Electronics Forum | Tue Apr 05 03:16:45 EDT 2011 | grahamcooper22
one of my customers with a BTU VIP 70 has the following settings, 100 / 175 / 210 / 250 / 265 with conveyor speed of 18 ins per minute. They get a peak temp of 240~245C and time above liquidus of 220 C is @ 55 secs. Built in thermocouples should give
Electronics Forum | Tue Apr 05 12:18:25 EDT 2011 | gaz
That's very helpful, and much appreciated. I know it's a long shot, but I don't suppose you know what paste they are using with these settings. I am testing with sn100c ws488. Thanks! kinos
Electronics Forum | Fri Apr 01 03:02:59 EDT 2011 | grahamcooper22
starting point with zone settings would be, 100 / 160 / 200 / 225 / 260 deg C...but you'll have to check the exact profile on the pcb with a reflow profiler....making sure you meet the paste spec and making sure you don't heat any devices up to quic
Electronics Forum | Tue Apr 05 15:32:49 EDT 2011 | grahamcooper22
It is one of our pastes...Almit LFM48 W TM-HP, a high reliability no clean solder paste based on SAC305 with a size 4 powder. It's a paste that works so well we have thousands of users of it worldwide. Why are you using SN100C alloy paste ? I imagin
Electronics Forum | Fri Sep 09 21:09:20 EDT 2011 | hegemon
Wow, a lot of questions here...and you are definitely doing some "tough sledding". To the point. If you have 3 - 22" zones you'll have to calc your belt speed and temperatures to match the solder paste requirements with regard to flux activation an
