Hi, Funny little video you made there. I just advice you to change the 200 volts you mention in your presentation into Amps because underwater the DC current that is used, has an open circuit voltage between 60 and 80 volts and the arc voltage turns generally around 35 volts. As for the Amps setting with that type of rod it is generally 150 Amps.
Hi Francis. Thankyou for taking the time to comment,I'm glad you enjoyed it. You are quite right, I meant Amps but kept saying volts. Tho this video wasn't really meant as a technical how to, I'll pin it for those looking for those details. I would stress tho that once the torch is lit the current is irrelevant and not part of the actual cutting process. In fact much of the cutting seen in the video was performed with the torch not energized at all. In practice a 200 Amp DC plant is provided for that work but it can even be started with auto Batteries in series in a pinch. Cheers.
That’s true; with those type of exothermic rods cutting “cold” is quite possible and often done. As for starting the rod with a car battery it can be done too if only a few rods are to be burned, otherwise on a real cutting job a welding generator is always used.
john lopes hey John, no, mine are the same size as everyone else's 😀. Many small steps in training build confidence and ability over a long time. I'm glad I could get you going tho😎. Mission accomplished . Thanks so much for taking the time.
Hi colleagues, if you are interested in explosions related to underwater cutting, you can then read or download the 70 pages of this document for free at: www.academia.edu/48908346/Underwater_Cutting_Explosions_Causes_Effects_Consequences_and_Prevention
An enjoyable insight to what you do. As an aside,the wartime diver Buster Crabb was a cousin of my grandmother,he had an interesting life too! Take care mate.Andy.
Rameman I am very familiar with commander crabs story, in fact I trained under a man that was taught by him in the RN. His disappearance in Portsmouth harbor. They even made a movie of his story(with a great deal of artistic license) with Sid James I think.his work adopting Italian idea of charioteers etc. could do a great movie these days,and it deserves it. Thankyou for coming by Andy,allwAys a pleasure.
.............Fascinating work you do there, Sir !!!.....anxious to see more of it. How much land based ( or topside ) support does your torch require ? Thanks for a very interesting video....
Greg Knight hey Greg, I'll do my best to bring some more. It needs welding plant and an oxygen supply.about a team of five to do it safely.thankyou for joining.glad you enjoyed it
looks very interesting . i am a metal fabricator by trade all above water . i would have loved to train to work underwater next level work for sure . i tip my mask to you and your work top job my fellow welder . anybody looking for a job for life try this work on for size . busy and interesting ROCKSTAR status
I love Yr channel name! Thankyou for watching my video and taking the time to comment. It is an interesting line of work and I'm grateful to have had a part of it.
Hey Man, thanks for the video. Somehow a flash back of the movie "Thief" (1981) where the character by James Caan cuts through a steel vault, with a thermic lance, to steal diamonds. So the gas pressure in the 'helmet' must equal, or be slightly greater than water pressure, to prevent water entry via the neck gusset? The 'system' you used is only for 'shallow' depth? Respect.
Circumpolar Bear Cult hello Bear. You are correct on the helmet and the demand regulator in the front maintains the pressure which is ambient. The gusset is called a "neck dam" and even if it's a bit loose and leaky it seems to still function. Good question RE the Depth. I think it's only dictated by the oxygen supply pressure so deep work too, just have to up the pressure. I remember that movie! Thankyou for coming by my friend. Peace.
I had never seen a small lance like that one. I had seen the big ones used on land. I have seen guys cutting steel with an electric welder and 6011 rod. Thank you for taking me along, Mark. I learned something today.
Good Morning Mark, I watched Tim's RU-vid Swamp Rat Survivalists video late this morning and I subscribed to your channel. What's a better tasting rum? 5 year or 12 year? Reviews say 12 yr. is more sugary? Need your advice! From Ray Spring Hill, Florida Best of luck on your channel!
rayjaypaulsen Hello Ray, great that you came by! Well, we're going into a very deep subject here😏.Generally older is better,but not allwAys..sometimes manufacturers aren't completely honest. Anyway, I can only speak to Dark Rum as that is what I enjoy, Jamaica rum is good, appletons, older the better. Yes the 12 year is good too in the El dorado. A recent fave of mine is something called Cohiba, made in Jamaica, lower Middle price range but excellent in my view. I Drink occasionally so I don't mind paying a little more for something good.
That was very interesting to watch. Does the light from cutting with the torch bother your eyes at all? It looks something a welding flash but not as intense. I'm still trying to catch up on your videos.......Take care, Bluefin.
