Electronics Forum | Fri Dec 09 22:06:44 EST 2022 | smith88
Are there standards that dictate how long a EEE component can be exposed outside of a nitrogen bag before oxidation occurs? Since Covid I am seeing more and more caps and resistors that seem to have oxidation and do not solder well....
Electronics Forum | Wed Dec 10 16:58:53 EST 2014 | sreejhu
Hello, yes you are absolutely correct. I agree with your point. Last week,I personally checked out my board on Heller 1088 which is a 8 zone reflow oven (4 on top and 4 on bottom) and the soldering came pretty nice. So comparing with that situation
Electronics Forum | Wed Dec 10 13:26:03 EST 2014 | spoiltforchoice
I don't have one, but a lot of ovens of this vintage are on the market because they DO NOT cope well with lead free processes. There is one of these on eBay right now and it even says ROHS is right at the limit of what it can just about manage so thi
Electronics Forum | Thu Dec 11 09:27:16 EST 2014 | sreejhu
ALso, coming to the convection the DIMA service group said : "Its full convection in the top zones. The bottom zones are heating elements mounted underneath a thick aluminium plate. So not full IR, but the head is coming from the heated aluminium p
Electronics Forum | Thu Dec 11 13:49:48 EST 2014 | emeto
If you have a chance ask them to bring in one of your products(take board, stencil and some heavy part on the PCB that will absorb a lot of heat). They should be able to screen(even manually) it for you, hand place the part and send it through the ov
Electronics Forum | Mon Dec 22 15:41:27 EST 2014 | benreben
why all people speak only the temperatur? the speed convoyor is very important too... with lesser zone of reflow you can lower the convoyor speed... but if i must speak about temperature and zone i think the minimum for solder all board in ROHS is 5
Electronics Forum | Fri Jul 24 03:23:34 EDT 2020 | xinyao
So I got this fully auto running machine line, that automatically pick, cut, edge grind, corner round the copper clad laminate, and I do not have a professional camara to shoot a video. How can shoot it with my phone, and still it looks amazing? Than
Electronics Forum | Thu Dec 11 08:22:26 EST 2014 | emeto
The longer the oven, the better. You will have much more capabilities in creating the precise profiles the way you want them(with10-12 zone oven). I have worked with ovens from 2 to 12 zones and the difference is huge. In my opinion try to get a 10zo
Electronics Forum | Thu Dec 11 09:15:06 EST 2014 | sreejhu
Hello Sir, Thanks for your reply. i just got a mail from the DIMA service group and they said the Oven setting is as follows: Max temp settings in each zone (Which is not the temperature on your product, but close to where the air flow comes out of
Electronics Forum | Mon Dec 22 18:20:22 EST 2014 | sreejhu
Hello, Also I wanted to tell you. I decided to go with a brand new machine. Please tell me which is the best machine for mid Volume. Samsung, heller, Dima, essemtec, acto USA, C.I.F Which company do you suggest me.. The best. My duties: We have boa
