Electronics Forum: extension (Page 1 of 28)

feeder extension

Electronics Forum | Sun Mar 26 20:14:12 EST 2000 | dave

I'm looking for a extension arm to fit on a Zevatech 8mm feeder which will allow us to use a 13" reel instead of the standard 7" reel. Does anyone make these or will I have to buld my own???

Re: feeder extension

Electronics Forum | Wed Mar 29 17:10:25 EST 2000 | Jon Wentz

Hi Dave, What feeder model do you have? I took a quick look in my parts list manual and again, depending on your feeder model, you might be able to buy the needed part(s) from Zevatech/Juki. Have you checked with them yet? For example, the main feed

Soder Paste Shelf life extension

Electronics Forum | dekhead |

Wed Feb 23 07:32:52 EST 2011

Soder Paste Shelf life extension

Electronics Forum | Sun Feb 20 20:52:26 EST 2011 | Jacki

I agreed not to ask the shelf life extension to the maker of solder paste. However, somtimes we have no chioce except using expired or used paste. When I have to, try the first PCB as a test. If Ok, just carry on other boards. Unless, use a new solde

Soder Paste Shelf life extension

Electronics Forum | Sat Feb 19 10:27:38 EST 2011 | kahrpr

Just a thought. What is the real shelf life of the past? Do manufactures low ball the self life to sell more paste. If the past is perfectly good one day before the expiration date is it still bad one day after I doubt it. Right or wrong I have seen

Soder Paste Shelf life extension

Electronics Forum | Wed Feb 23 07:36:22 EST 2011 | scottp

We have a new site that is in the process of starting up and doesn't run much (1 tube every couple weeks). They recently called me about using expired paste. I told them to print a few scrap boards and run them through SPI to verify good print and

Solder Paste Shelf life extension

Electronics Forum | Fri Feb 25 02:30:32 EST 2011 | pkannan

Dstadem, Thanks for bringing your in valuable experience with the J STD 005 " Requirements of Solder Paste". I fully agree with you that the Solder Paste can be qualified for shelf life by doing simple viscosity test and visual inspection for coal

Soder Paste Shelf life extension

Electronics Forum | Wed Feb 23 00:45:49 EST 2011 | tsvetan

Does someone with technical knowledge knows what exactly happend with the solder paste after the shelf life pass? What we have seen is sometimes flux separation which disapear after a good mix, and change of viscosity i.e. drying. The tin, silver and

Soder Paste Shelf life extension

Electronics Forum | Wed Feb 23 03:12:25 EST 2011 | pkannan

You are very right. There are 2 major factors 1) There is going to be Flux separation. This is basically due to fact that metal particles are heavier than the Flux vehicle system, and due to gravity effect they slowly drift downwards leaving the ligh

Solder Paste Shelf life extension

Electronics Forum | Wed Feb 23 03:22:47 EST 2011 | pkannan

(Corrected the Subject line - sorry for Spelling ) You are very right. There are 2 major factors 1) There is going to be Flux separation. This is basically due to fact that metal particles are heavier than the Flux vehicle system, and due to gravity

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