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post #1 of (permalink) Old 08-14-2004, 02:21 PM Thread Starter
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cjdave- welding ?

My miller mig does not like flux core wire. it keep sticking. Is this normal. I had flux core because I have not bought the bottle yet. it it normal to stick on flux wire or do I have another problem somewhere.
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post #2 of (permalink) Old 08-14-2004, 03:44 PM
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Re: cjdave- welding ?

You have another problem. If the wire just isn't feeding properly:

Improper tip size
Kink in the liner
Not enough pressure on the drive roller
Using the smooth-groove drive roller instead of the serrated one
A rat's nest in the wire spool

A problem I have had with my Miller 130 is wire sticking itself right where it comes out of the tip while welding. The cure for that seems to be a new tip and being very careful of the amount of stick out. Getting the tip too close to the base metal causes problems.
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post #3 of (permalink) Old 08-14-2004, 07:17 PM
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Re: cjdave- welding ?

[img]images/graemlins/tongue.gif[/img] There are problems with wire FEEDING, and then there are problems with wire STICKING. I've never actually used flux core in my Miller 35, so I have no way of guessing what the problem may be, but those tips in that last post are right on as far as wire feed goes. You need to look at the drive rolls and BE SURE that the liner is perfectly aligned with the rolls. I had an instance a year or so ago where the guy's welder was assembled incorrectly and wouldn't feed well. Also, as was mentioned, you need enough wire speed so you don't burn back too close to the contact tip. [img]images/graemlins/tongue.gif[/img]
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post #4 of (permalink) Old 08-14-2004, 08:25 PM
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Re: cjdave- welding ?

Good advice so far -
If it's sticking in the tip the feed's not fast enough.
Something that helps too is the welding spatter jelly. Plunge the entire head in it - wipe off the excess, it helps the spatter stop from sticking to the tip and wire -- especially very useful in out of position welding where spatter falls back into the head, like upside down. One can of the jelly lasts forever. The spray's good for stopping spatter on the work, but the jelly's great on the head (welder's, not yours.)

Sticking to the workpiece is another story altogether - indicates feed's too fast, you are traveling too slow, or you need more gap.

A roller than lets the wire slip occasionally can drive you nuts.

Get proper roller tension by holding the head a few inches - 6 - 8" above the cement floor pointing right at the floor - pull the trigger. Let the wire push against the floor, then bend. The wire should bend and still feed evenly. If it hesitates the rollers need more pressure.
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