Electronics Forum: scooping (Page 1 of 8)

Metal squeegees

Electronics Forum | Thu Oct 06 09:12:54 EDT 2005 | russ

in addition, your prints may have a larger volume from the reduction of scooping from the rubber blades.

Draining a Solder Pot-

Electronics Forum | Wed Sep 28 13:26:36 EDT 2005 | Jay Brower

Yes, I've used the muffin tins. I drained a solder drag pot. Steve makes a good point about the drain valve. When I drain my pot, I will be scooping out the solder and filling my tins.

manual stencil print 2 passes

Electronics Forum | Tue Dec 23 14:45:06 EST 2008 | comatose

One thing that helps is to divide large pads into a series of smaller pads. This prevents the scooping you're talking about.

Epoxy for printing

Electronics Forum | Tue Mar 13 09:17:08 EDT 2012 | davef

Hard plastic, such as polyurethane or Teflon, are fine for printing adhesives, since there isn't as much as a requirement for applying sheer as there is with paste. So, scooping is not as much of a issue.

Reflowing a PowerPak SO-8

Electronics Forum | Thu Nov 06 07:54:50 EST 2003 | davef

First, skewing is a perfectly acceptable condition, providing the amount of skewing is not excessive. A-610 provides guidance. Second, this part is a land grid device. Land grid devices [ie, BCC�, LGA, QFN, MicroLeadFrame�, etc] are essentially BGA

Re: Decommissioning or Scrapping PTH/SMT equipment

Electronics Forum | Fri Mar 31 17:10:29 EST 2000 | Dave F

Jax: I surely tried to hedge in my response, but knew I would get away with it. OK, here's the true scoop ... Yea bud, you work for years to learn the stuff, do good, advance the knowledge and wadda ya get?? Compared to a bean counter!!! Talk a

Squeegees for Step-Down stencil

Electronics Forum | Fri Dec 06 13:00:29 EST 2002 | daanterstegge

I wouldn't recommend a metal squeegee, because if you can't wipe the step-etched area completely clean (that's the problem with metal) you'll have problems with the definition of the fine-pitch (it may stick in the holes). Best is a 70 Shore polyuret

Squeegees for Step-Down stencil

Electronics Forum | Mon Dec 09 14:31:21 EST 2002 | swagner

You want to use a rubber squeegee with as high as a durometer as you can get away with, order two or three sets of blades starting with the softest and then progress up the the hardest, the reasoning behind this is the softer squeegees will wear out

Leadfree Dross in Wave Solderpot

Electronics Forum | Fri Feb 25 18:13:17 EST 2005 | davef

Your leadfree dross should float, similar to your leaded dross. It's possible you're thinking about the process for removing excess copper from the solder pot. Following the same process, with: * Leaded solder, the copper floats. So, you scoop the

Stencil and board Ultrasonic cleaner

Electronics Forum | Wed Feb 01 16:59:43 EST 2006 | Chunks

Hi Darnell! How's it hangin bra. Good point about the cartridges. I think "the man" invented them. Anyway, you can still scoop the excess into an empty container..... Most paste companies will take your old paste back for free too. Aw-ight, w

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