Electronics Forum: cold welding (Page 1 of 2)

Cold Welding Phenomenon

Electronics Forum | Mon Mar 09 07:29:21 EST 1998 | Tom Mc Grath

Cold Welding I'm presently doing a project on reflow profiling. I came across this expression. Can someone please give me a definition. Best Regards Tom Mc Grath

Re: Cold Welding Phenomenon

Electronics Forum | Tue Mar 10 03:01:30 EST 1998 | Pete Sorenson

| Cold Welding | I'm presently doing a project on reflow profiling. | I came across this expression. Can someone please give me a definition. | Best Regards | Tom Mc Grath A cold weld is a joint between two metals produced by the application of pr

Streaking at Screen Printing

Electronics Forum | Sun Dec 17 08:41:38 EST 2006 | davef

Paul We've seen "cold welding" of solder paste when dispensed improperly. It occurs in the narrow confinds of the nozzle when someone tries to pipe too much paste, too quickly. The friction of all those little solder balls and paste juice fighting

Streaking at Screen Printing

Electronics Forum | Fri Dec 15 10:58:32 EST 2006 | pms

Yes we see this also....... It is what they call "cold welding" of the solder paste to the blades...... The solder spheres actually "weld" together...... It leaves streaks on the stencil, not a clean wipe of the stencil....... We have never found

Re: Solder Paste Dispense problems

Electronics Forum | Thu Nov 30 21:13:55 EST 2000 | Dave F

Can't find "WS601" on the Alpha site. What is that stuff? So, with nothing to go on, I'll just guess ... Yer probably cold welding the solder particles together. The nozzle size (inside diameter) determines the dot size. * With glue, small dot si

Re: Cold Welding Phenomenon

Electronics Forum | Mon Mar 09 10:12:43 EST 1998 | Justin Medernach

| Cold Welding | I'm presently doing a project on reflow profiling. | I came across this expression. Can someone please give me a definition. | Best Regards | Tom Mc Grath Tom, I think what you are referring to is also called cold solder. You have

Small scale reflow oven

Electronics Forum | Mon May 13 03:01:23 EDT 2019 | peterchan

Hello, sir. We are a SMT equipment manufacturer from China. We have a hot-press soldering machine that can change your current situation of manual soldering on PCB board. In addition, we have a better reflow oven, the upper and lower two cold tempe

Thermocouple Design

Electronics Forum | Thu Apr 05 09:17:40 EDT 2007 | itaig1

I have seen a method used where the pins on the connector are of the same materials as the thermocouple and the connector is connected via single strand wires of the same material to the PCB however the wires were spot welded to bare copper pads to r

solder paste

Electronics Forum | Wed Jul 27 09:58:05 EDT 2011 | davef

Pressure printing systems Conventional stencil printing techniques have fundamental limitations as regards paste handling: The volume of paste available for printing is limited, so frequent replenishment is necessary Paste is difficult to c

Re: ESD Compliant - Air blow off to dry washed circuit board assemblies

Electronics Forum | Wed Apr 12 21:04:10 EDT 2000 | Dave F

Ashok: You still didn�t tell me why you want additional drying of your boards, but what the hey, we all have our dark secrets. Anywho, let�s consider some options for reducing the moisture of your cleaned boards: OPTION 1 - Up-Grading Your Cleaner

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