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  #1  
Old 06-20-2004, 05:25 PM
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wolfgangwelding wolfgangwelding is offline
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Default flux core wire from hell

Hey all want to ask about this flux core wire i got to use in my Miller 3045fc. The wire dosent seem to be a very good wire to me it dosent seem to run smooth and there is not realy a flux coating after makeing the weld. It just seems that other wire I have used in the past have been much easyer to work with to make nice beads. The wire I have is Prostar 700GS. Its number designations are E71t-GS That tells me its an all position wire. And I have made dam sure all my settings on the bobcat 225 and the 3045fc wire feeder are corect. Any help would be grate. Thx Wolfgang.
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Old 06-20-2004, 06:24 PM
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Wolf,

I don't know beans about the stuff but a Google search for Prostar 700GS gets me a couple of hits; the first one is a .pdf file that shows E71t-GS to be a flux core wire for "all position, high speed welding of coated steels".
http://www.praxair.com/praxair.nsf/d63afe71c771b0d785256519006c5ea1/fcb2fc5a83170e3585256cc40055535a/$FILE/psg%208_6-14.pdf

The second one describes it as a wire for "all position, high speed welding of galvanized and aluminized steels".
http://ecatalog.praxair.com/wcsstore...ubularWire.pdf

Maybe you're welding something other than "coated steels" or "galvanized or aluminum steels"?
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Old 06-20-2004, 06:38 PM
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Cutter in pounding arcs on mild steel, and some painted mild steel from which i got a good portion of porasity. I chaulked that up to not being responsible enough to remove the paint. I whent to the link you posted and it makes since. Taht wire burns prety hard core I could see how it might do well on galvenised material. Maybe I sould be a little more pationt and work with it some more, its just hard to do when I get home from work and its 97 degrees outside. Thx Cutter.
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Old 06-20-2004, 07:43 PM
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What polarity are you running? Self-shielding should run on DCEN, shouldn't it?

Refer:

PROSTAR® 700GS is a carbon steel, flux cored electrode
for use without an external shielding gas with DCEN (straight
polarity). This electrode is intended for welding thin-gauge
coated carbon steel, ranging from 3/16" to 22 gauge.
Applications are limited to single-pass weldments.

Characteristics
PROSTAR® 700GS arc transfer is smooth and stable, with
virtually no spatter emission. This “soft” arc transfer minimizes
burn-through on thin gauge material. Availability of diameters
down to .030" makes this product a fine choice for use on
the popular 110 volt power sources.
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Old 06-20-2004, 08:20 PM
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The bobcat 225 has tow wire settings for wire welding DCEN and DCEP I made shure I was on DCEN.
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Old 06-20-2004, 09:36 PM
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Do you think it could have a moisture problem? I bought a new spool of Lincoln flux core and hated it. Pinholes, hard starts, and anything else you can think of. Turned out to be a bad spool. The new one was nothing like the first one.

BTW, how do you like your 3045? I've been thinking of getting me one for my Bobus Catus.
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Old 06-21-2004, 09:58 AM
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DDA52 I love the 3045 my first choise was a siutcase but that was out of my price range. The 3045 is noy as rugged but I am the only one that uses it and i take good care of it so it sould last me a long time. And I think your moistuer openion has merrit.
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Old 06-21-2004, 09:23 PM
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Thanks wolfgang. I've been wondering if anyone had one. I may get one one day. Gotta get the ol' Bobus running first.
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Old 06-21-2004, 11:46 PM
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Go get yourself a spool of Lincoln Innershield NR-211-MP and let the good times roll ! If yer' not running gas, this is the stuff to use !
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Old 06-22-2004, 05:21 AM
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I think thats just what ill do Marko it will be good to have the comparison.
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