I saw the Gas Saver by CKWorldwide ( http://www.ckworldwide.com/gas_saver.htm ) . Is there anyone that uses this? Is there really a savings to be had? What is the comparision to a traditional set-up?
Ok it worked. Here are a couple of my setups and what i have to do to them to get them to work. and now for the CK worldwide cups
Here's my gas saver for a standard #8 cup. A piece of scotch bright cut out to fit right in the end of the cup.;-)
The CK worldwide cups are not really gas savers in the smaller cups. I see no benefit in using the CK worldwide cups that are smaller then the monster cup I showed you. Stick with the regular gas lenses for the regular applications. The monster cup I showed is supposed to be for titanium and such and if you don't flow enough gas then it won't work. If you try to turn the flow up so that it does work it becomes turbulent. I use them for full penn straight butt single pass on 3.5mm stainless competition projects. CK worldwide sponsors me in the training of our international welding competitors and the 200amp-torch monster cup they sent this year was junk. There was a gap all the way around the screen and the ceramic witch was causing hella turbulence. We tried to diffuse it even more with stainless steel wool, but it didn't work. However this one just happen to make it past the quality inspector because all of mine fit snug and I have no probs. To get the monster cup to work you have to cram it with a certain amount of stainless steel wool to help diffuse the gas a bit more for better coverage. You then have to slide the cup in and out till you find the sweet spot. I have found that Stainless steel wool lasts longer then scotch bright so you don't get to big of a hole around the tungsten. This hole will also cause turbulence so if you use scotch bright on your #8 standard cup watch out for that hole to get to big. You'll know it when you weld starts to look crappy. Back to saving gas. On my make shift gas lenses I had to flow around 50 to 60 cfh to be able to stick the tungsten out where I needed it and still get real good color on the stainless. With the CK worldwide lenses and the modifications I can flow 45-50cfh and stick my tungsten out almost an inch and still get real good color. What is the application you intend to use CK'S cups on?
I was looking accross the board at all our welding cups. We weld alot of stainless & inconel as well as steel at our shop. I'm just looking at different things out there that may be better than what we currently use. My thought with the small gas saver is just that. To save gas, but not at the expense of getting bad welds.
Your mods are interesting. I haven't seen any of the welders at this shop do any mods to their screens. They just use the standard ones out of the box.
On my little 200amp torch conversion where you see the cup cut in half. That's the one I used for .020 to .030 titanium and inconel parts. Like i said the only CK cup i would purchase would be the big one. Standard small gas lenses are plenty sufficient.
we exhibited at Fabtech in Chicago. We manufacture a Gas Economiser that can save up to 50% as well as incorporates a lockout without the need to change nozzles. This equipment works on both MIG and TIG and pays for itself in a matter of weeks. visit www.shieldtechnologies.co.za for further info.