Electronics Forum: forum (Page 6106 of 7890)

Mounting 0402 chips

Electronics Forum | Sun Oct 09 20:40:28 EDT 2011 | Jacki

Hi We found the misalignment sometime during SMT 0402chips. So, we made the pick up speed a bit slower then the condition was better however it was time-consuming and delay shipment. We r using Yamaha 100Xg SMT M/C and no probelm in mounting 0602 o

UL - Underwriters Lab - Solder

Electronics Forum | Mon Oct 10 14:03:07 EDT 2011 | adp23

I have a few questions regarding Solder products being UL Listed or Recognized. I am aware that UL does test solder material (conductive material) using the UL 746 standard. However, i would like to know if UL actually recognizes the conductive mater

Is Trichloroethylene recommended for PCB assembly cleaning ?

Electronics Forum | Tue Oct 11 11:47:22 EDT 2011 | kahrpr

Davef is correct that's some nasty stuff. It was used somewhat in the 80s maybe the 90s it can clean a board however its total over kill for cleaning and it can harm you. I worked in a shop back in the 80s in the vapor degreeser days. and they used

Is Trichloroethelyne recommended for cleaning PCB assembles ?

Electronics Forum | Sat Oct 22 09:02:46 EDT 2011 | mojomatt

Yes it is used for PCB, I have used it in the Automotive Service Industry for many uses. Most popular as a Brake assembly cleaning agent. It is popular today due to its low FLASH POINT, unlike other solvents that contain Heptane, Xylene etc thease ha

SMT equipment--cheap/for starter

Electronics Forum | Fri Oct 14 12:03:32 EDT 2011 | fborja3

I want to start an assembly that may require use of SMT machines such as SMT assembly, bond wire, Xray and PCB fabricator machines. I apologize I am not to savvy with the technical names such as the above but I just want something not to costly or e

ap25 hie

Electronics Forum | Tue Oct 18 10:07:59 EDT 2011 | swag

We converted all ours to NT so it's been a long time since I did config changes in DOS. Here's what I think I remember from when we had DOS O/S: Exit to DOS and type CD CONFIG in the command line. You should get a full list of configuration settin

ap25 hie

Electronics Forum | Tue Oct 18 17:54:53 EDT 2011 | swag

Yea, it's tough and takes 25 disks. Not sure if there's a better way. As for NT, we bought NT upgrade packages from Speedline for all three of our AP25's. The backup is then done on a CD burner. I can't remember the cost of it all. However, be a

lead free solder dross recycling

Electronics Forum | Wed Oct 19 11:33:15 EDT 2011 | caerleon

easier if you recycled on-site? You can still send off for reclaimation the oxide powder that your left at the end of the process. Failing that talk to your supplier to see if they have arrangements to do this for you or look at reducing dross - i f

Agilis Feeders Exposed Parts Upon Removal from Feeder?

Electronics Forum | Thu Oct 27 15:57:57 EDT 2011 | sjs2303

Dave, I think he means that when the plough on the feeder peels back the tape, it exposes a few extra components that are yet to be picked. As a result when he is finished with the reel there are some components in pockets that are not required but

Agilis Feeders Exposed Parts Upon Removal from Feeder?

Electronics Forum | Thu Oct 27 20:30:54 EDT 2011 | tech1

Yeah that is a drawback to those feeders. The plastic part that is mentioned in one of the responses is okay but you have to be real careful when pulling the tape out before you can put that part on. Mydata always says to leave the reel with the feed


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