Electronics Forum: alpha and 600smd (Page 3 of 4)

Re: WAVE SOLDERING and Gluing 0603 packages

Electronics Forum | Mon Apr 26 09:18:27 EDT 1999 | C.K.

Has anyone had trouble waving and gluing 0603 R's and C's? At my company, our designers have "opened the floodgates" on bottom-side 0603's. We've got an EPK+ with rotary chip and omega wave but can't seem to get skip-free so

Re: Quick Frame and Dek 265GS

Electronics Forum | Tue Jun 02 13:44:04 EDT 1998 | Rin Or

Does anyone use the "Quick Frame" with their Dek printer? The threads on the screws keep stripping, so we thought maybe we'd send our frames to a machine shop for heftier screws. Has anyone done this? Is there a better wa

Difference between Alpha metals SLS65 and E191 fluxes

Electronics Forum | Wed May 01 10:16:05 EDT 2002 | davef

Consider contacting Alpha Metals at http://www.alphametals.com/tech_services/index.html

Difference between Alpha metals SLS65 and E191 fluxes

Electronics Forum | Tue Apr 30 16:18:37 EDT 2002 | mantis

Can anyone tell me the difference between the these 2 fluxes as i cant find a data sheet(i searched the alpha metals website) for the E191.I know the the 2 fluxes are both no clean but other than that?? The reason i ask is i found some E191 in our st

SAC 305 Reflow & SN100C Wave and Selective

Electronics Forum | Thu Feb 15 13:47:16 EST 2007 | russ

They are all compatible with each other. Data is at alpha metals website and FCT assembly Russ

Re: Pin Hole/Blow Hole - Causes and cure please

Electronics Forum | Fri Jun 25 09:43:24 EDT 1999 | Dave F

snip Dear John/Earl Thanks for your clarifications. To me also the problem does not seem to be linked with the PCB. The Pre heater temp. is set at 450 degree C. We are using Alpha Aq. cleanable flux. Can you elaborate on the Desired

Re: Gold cleaning and repairing,and flux paste source

Electronics Forum | Mon Sep 18 19:58:10 EDT 2000 | Dave F

broad answer. There's tons of suppliers. Go to "Circuit Assembly" magazine web site and look-up flux suppliers in the "Buyers Guide." Broad line suppliers are Kester, Alpha ... They will make you answer: I'm joining bla, bla, bla metals, using b

Re: resistor and capacitor naming codes for smt.

Electronics Forum | Mon Sep 28 09:18:30 EDT 1998 | Ben Wilmot

The majority of SMT resistors use the following notation. 10 X eg 153 represents 1k5 resistor The third digit in the sequence denotes the number of zeros to add after the first two digits giving the value in ohms. Many Caps will follow the same nota

No solder and solder bridge after Wave solder machine

Electronics Forum | Thu Nov 17 20:51:16 EST 2005 | cangly

Morning Mike, We use Pb63/Sn37, Alpha Metal alloy. Solder pot is at 250 C. The profile of board after Preheat about 100 C, Lambda Wave about 220C (use both Lambda and Chip wave), DWell time 2.1s ~ 3s. Conveyor speed 1.5 in/min. We run by bare board a

Re: Pin Hole/Blow Hole - Causes and cure please

Electronics Forum | Fri Jun 25 01:11:31 EDT 1999 | Vinesh Gandhi

Recently, there has been an upsurge in the Pin Hole/Blow Hole problem in our wave soldering process. We are baking the PCBs for 2 Hrs. at 125 degree C. The Wave Soldering profile seems to be O.K. Still the problem is persistent. Can somebody

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