Electronics Forum: electron (Page 5781 of 7890)

Full IR Reflow versus conventional convection ?

Electronics Forum | Mon Jan 23 03:17:10 EST 2006 | pavel_murtishev

Good morning, IR reflow is yesterday technology. IR heating principle has a lot of issues with heat transfer capability (shadow effect) and uneven PCB heating. To avoid this forced convection ovens were developed. Reflow oven for SMD soldering must

Full IR Reflow versus conventional convection ?

Electronics Forum | Mon Jan 23 14:09:14 EST 2006 | gipos

Hi Pavel, Thank you for your time.We wonder if anyone have experience with Panasonic - Panasert reflow oven model REF-A.It is used in Asia a lot. We have to chose among few models of reflow ovens : 1.Panasonic REF-A 2.Hollis(Electrovert) model Sur

Full IR Reflow versus conventional convection ?

Electronics Forum | Thu Mar 23 16:22:14 EST 2006 | gipos

Chunks, Have you worked with Universal Full IR 4816 CRS reflow-curing oven ?? We have received it and powered up.It looks like new, has touch screen monitor with commands. Why not to use it for simple uniform low pofile components (avoid shadowing)an

Wave Pallets

Electronics Forum | Tue Jan 24 04:09:27 EST 2006 | aj

Hi all, I would like to hear from more experienced selective wave pallet users out there. If you do not use a selective wave pallet does this not leave the possibility of solder flowing up thru the Via's on the board. I have identified this as been

Best contrast for Fiducials

Electronics Forum | Tue Jan 24 12:16:51 EST 2006 | PWH

Although I can't say I've had much trouble at all with MpM's reading fids, I will say that most of the P&P equipment I have run can be picky on fids. The fid surface needs to be pretty flat in order to be trouble free on some P&P equipment. I don't

Do you need to bake after parts are in the Dry Cabinet

Electronics Forum | Thu Jan 26 14:47:46 EST 2006 | james

Just wondering what others are doing as far MSD parts. We keep most of our parts in the dry cabinet before use. Most bags are openend and have passed the recomendation as far as mounting within a certain time. We have had defects with boards that

Do you need to bake after parts are in the Dry Cabinet

Electronics Forum | Wed Feb 01 11:47:07 EST 2006 | Mike

James, If you have a true MSD issue, then baking them AFTER your reflow is not going to fix the issue. I would have to agree with GS and look at trapped cleaner media (if your not No-clean) under the components, or inside connectors. If your runnin

Inline PCB Cleaners

Electronics Forum | Thu Jan 26 18:28:40 EST 2006 | MikeAJ

An adhesive style cleaner is primarily used as a "precleaner" for bare boards only. These machines are placed between the loader and the printer. The TekNek machines can be best compared to those disposable lint and hair rollers. The same type of rol

DEK�s HawkEye

Electronics Forum | Mon Jan 30 10:21:05 EST 2006 | CEB

Just recently installed new machine with Hawkeye 400, the vision system is extremely easy to set up and run. We have only been running but 6 weeks, but I would recommend the system versus the cost of a inline solder paste inspection systems. If you i

UPS and ROHS Compliance

Electronics Forum | Fri Jan 27 15:39:08 EST 2006 | GS

Thanks Patrick yes I feel better now, but allow me a comment: Reason A: your answer confirms my tough. In general could be accepted Reason B: your answer "The primary function of ups start when electricity is "off" so the equipment is clearly exem


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