Electronics Forum | Wed Oct 19 15:38:03 EDT 2005 | chunks
Wow, all this BTU talk brings back bad BTU memories. Yes, the VIPs are good ovens, but the TRS series and Paragons were bad. TRS had air amplifiers - nuff said, while the Paragons had long spell of bad motor bearings because of design issues. Neve
Electronics Forum | Wed Apr 20 14:32:34 EDT 2011 | cbeneat
Hi all, A quick question to see if anyone can solve my issue. We are having problems with a particular board we run through our wave solder on a pallet. The board is populated with about 20 fuse clips, and one clip on almost every board gets fille
Electronics Forum | Wed Oct 08 11:16:12 EDT 2014 | cbeneat
We are having an intermittent issue with a certain board on our wave solder line, machine is a Vitronics 6922 Delta Wave, leaded process. There are 2 fuse holders on one edge of the board that are not getting solder all the way thru the barrel every
Electronics Forum | Tue Nov 29 12:23:58 EST 2005 | JeffP
>Anyone can do good airflow with a little brains, and so >>delta t is important, but not the main weakness I see on >>batch convection. Actually it is a main weakness with batch and small conveyer ovens on the market. There must be a lot of people
Electronics Forum | Mon Oct 17 17:52:10 EDT 2005 | russ
Lead Free profiles can be achieved on 4 zone ovens on relatively simple boards (I did this for a year). The 4 zones can be a bear to get right for a really optimum profile. Assemblies with significant Delta T designs can be nearly impossible with 4
Electronics Forum | Thu Nov 01 13:08:38 EDT 2007 | samir
AJ - Why so stringent on your 2�C Delta T? You say your peaks are within 2�C - 3�C of each other within the device. Reason I'm asking. With a 5-zone oven, it is very difficult to achieve that. With more zones, you can put a little "knee" or soak
Electronics Forum | Thu Aug 21 08:33:09 EDT 2008 | davef
There is no standard as such. It's easy to see why. It's too complicated and has such a small payoff. Standoff is comprised of: * Package height * Solder thickness between the pad and the component lead * Delta of pad thickness and solder mask For p
Electronics Forum | Mon Dec 28 08:51:45 EST 2009 | jax
What solder are you talking about and what reflow method are you using? High Melt Alloys: SN96 (Sn96/Ag4 or Sn96.5/Ag3.5) - Simliar to SAC305 although normally uses Rosin based flux that can required more extensive cleaning. Pb85 (Pb85/Sb10/Sn5) -
Electronics Forum | Fri Apr 16 12:23:40 EDT 2010 | shawnvike
We are looking at buying a new (or used) oven for low-mid volume Pb-free production. I have looked at the smaller Hellers, BTU, vitronics, etc. and I am also looking at the Manncorp CR-6000. I want at elast 5 zones, top and bottom, air (no N2) pi
Electronics Forum | Thu Mar 17 09:47:23 EDT 2022 | spoiltforchoice
Depends a bit on how well maintained it is and what your spares answer ends up being. However, bear in mind that a brand new Chinese oven of this sort of size can be 5-10K and larger but 10 years newer Heller/BTU/Vitronics oven can be priced in that
