Weld Table Rust?

[ultrarunner]

Do it often for oxygen and air.

When I would tag along at the gas plant I went through the entire fill process… checking date, inspecting cylinder, making high pressure connection, opening valves and then closing and breaking connection and documentation as lot number.

I did racks one night and was offered a job but with going to school it would not have worked… also purge lines for liquid nitrogen and liquid oxygen.

The fittings and line with gauge was given to me when the plant was sold to an over seas buyer.

The cost of one “E” tank fill is close to the cost of a 250 cu ft bottle fill.

It’s the handling and documentation hard cost and very little is actually the cost of content.

 

[ultrarunner]

Running mostly 5 cylinder manifolds at work is similar because all cylinders will equalize.

If a cylinder could talk as some I come across date from the early 1900’s

I’ve posted before the picture of a Linde medical Oxygen Cylinder dated 1930’s with ******** imprint… maybe on a U-Boot or Africa Core?

When cylinders no longer hydro they make awesome wind chimes.

 

[deezler]

I mean, you can always let it surface rust a little and just take a flapper wheel on your angle grinder to it once or twice a year to clean it up. A damp rag of WD40 should hold it off for a while tho. But some of you guys sound like you keep yours slathered in oily carcinogens, lol.

 

[rangerfredbob]

"Love" my (insert tool brand here), just means it was a good purchase and I'd surely but it again... ha

Which is considered "better" at HF - the Vulcan or Titanium line?

I own my oxy/acel torch and MIG tanks (large CO2/Argon mix and a small pure Argon). I just exchange them. Years ago, the welding supply place I used would fill mine, but never to the pressure the exchanged ones came with. I don't think they fill them anymore there...

What gas is used for TIG? Straight Argon?

This is devolving into a TIG welding how-to thread, so I should prolly stop here.

The Vulcan line is considered better than Titanium but nothing wrong with the Titanium line, I have the Titanium MIG 170 and Unlimited 200 and they weld great other than on sheet metal with MIG, anything under 100 inches a minute wire speed is iffy... I've yet to try TIG on the 200 but it's on the short list of things since I have a stainless project in the plans, the main downside on it on TIG is manual gas control and scratch start from what I hear where the Omnipro can take a pedal input and is high frequency start... since I have the 200 I'm going to try to use it...

 

[sandman2234]

Do it often for oxygen and air.

When I would tag along at the gas plant I went through the entire fill process… checking date, inspecting cylinder, making high pressure connection, opening valves and then closing and breaking connection and documentation as lot number.

I did racks one night and was offered a job but with going to school it would not have worked… also purge lines for liquid nitrogen and liquid oxygen.

The fittings and line with gauge was given to me when the plant was sold to an over seas buyer.

The cost of one “E” tank fill is close to the cost of a 250 cu ft bottle fill.

It’s the handling and documentation hard cost and very little is actually the cost of content.

I got my transfer hoses the same way. Air Liquide closed down my favorite fill plant and I lost a source of work (side jobs) and my "free gas". I bought a new Miller Bobcat for $1493.00 out the door when retail was $2795.00 by knowing the right people back then.
I seldom use transfer hoses, but have no issue doing it, mainly because I learned how from someone who knew how that I trusted. There are dangers, but less than trans-filling propane. I WILL NOT transfer acetylene under any circumstances, but I did cut the tops off a lot of them with a torch!
David from jax

 

[ultrarunner]

Acetylene is a beast unto its own regarding stability.

I remember part of the acetylene process as calculating acetone content?

On the oxygen, nitrogen, etc… one of the early steps is confirming full DOT psi because different alloy cylinders have different max psi.

1800 was very common at one time and still in circulation

Lots of information stamped on the shoulder and neck of cylinders along with DOT max pressure. If there is also a plus symbol after the pressure it’s approved for 10% overfill…

It’s been a number of years since I took the classes.

At the hospital clinic which uses bottle gas one of the first things I did was set up a corner to keep spare full cylinders at the ready… several times it has saved our bacon because something was left on and no matter how many full bottles you have in the manifold a long holiday weekend can wipe you out.

I check the gas room first thing in the morning and the last thing on the way home.

 

[dieselscout80]

The Vulcan line is considered better than Titanium but nothing wrong with the Titanium line, I have the Titanium MIG 170 and Unlimited 200 and they weld great other than on sheet metal with MIG, anything under 100 inches a minute wire speed is iffy... I've yet to try TIG on the 200 but it's on the short list of things since I have a stainless project in the plans, the main downside on it on TIG is manual gas control and scratch start from what I hear where the Omnipro can take a pedal input and is high frequency start... since I have the 200 I'm going to try to use it...

Im considering one of those to replace my 120 volt mig welder.

So you are saying they don’t work well for sheet metal correct?

Is it the lack of control of the wire speed? Also, have used .23/.25 wire?

 

[rangerfredbob]

Im considering one of those to replace my 120 volt mig welder.

So you are saying they don’t work well for sheet metal correct?

Is it the lack of control of the wire speed? Also, have used .23/.25 wire?

It seems to be the wire speed as the issue, I only have .030" wire and the tables on the door only cover .030" and .035" wire but if you went down to .023" or .025" wire that would increase the speed so I think you'd be in better shape. I have monkeyed with the settings from recommended by increasing the speed to just over 100in/min and dropped the voltage a touch and it welded better, would just take some playing with settings... If you understand what is going on and are aware of it I'm sure it's something that can be overcome, the welders are solid units and weld very smooth. The gun on my 170 has a switch issue I haven't dug into too far yet but I got that thing in an open box sale for like $125 so I've taken to trying to break it kinda, it's been ran on a 4000 watt generator to the point of stalling the generator several times, used in the sand dunes camping fixing wheeling rigs several times, only issue I've had is the trigger recently...

 

[Rvrrat14]

My table sits outside. I take a grinder to it when I need to weld. I occasionally spray with WD or wipe with motor oil. Seems to be ok.

 

[not2old]

My table is 1/2" plate and in an attached garage that is heated ti about 56F in the winter. I've never needed to do anything about the mild surface rust but have taken a 7" grinding disc to the surface to remove weld spatter. I don't put anything on it.