Printable View
A cobble happens when steel bar is being hot rolled, and the bar jams in the mill. The steel gets tangled, and pressure builds up until the molten steel bar is shot out into the air.
<video controls>
<source src="https://s3-us-west-1.amazonaws.com/hmt-forum/steel_mill_cobble.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
Another:
https://www.youtube.com/watch?v=YgxQeCcm2dg
A very dangerous situation and nothing can be done until the mill stops
When that mess cools you hacksaw it free and take it to the nearest modern art museum. Don't laugh, I've seen weirder stuff than that at the LA art museum.
Agreed 100%. Check out this found-somewhere-on-the-internet double-headed hammer joke:Quote:
Originally Posted by mklotz
https://s3-us-west-1.amazonaws.com/h...ded_hammer.jpg
Now look at this "contemporary sculpture", by artist Jesse Reed, from the website of Anonymous Works, based in, you guessed it: Los Angeles.
https://s3-us-west-1.amazonaws.com/h..._sculpture.jpg
More: AP34
That first one was scary watching the plonker with the clipboard clearly ignoring the warnings from the guy in the hardhat.
Once while visiting a wire rope manufacturing company in Germany the Chief engineer was showing me their new elevator rope winding line when we heard a series of loud noises that sounded like the sonic cracks of a thousand bullwhips then sirens and men and women screaming.Quote:
Originally Posted by mklotz
It turned out that in the tension testing lab some how a safety cover had failed when a 100 meter section of 80 mm diameter rope being tested grenaded sending parts of the testing machine and shrapnel from the rope through walls and the long glass viewing window, there were no fatalities but a dozen or more people had some very serious injuries Fortunately the operator was protected in the control booth
Yes, really impressive, I guess there must be noise like in hell in these plants, maybe that's why the second guy didn't realize what was happening...
He could have been cut in two pieces ...
<video controls autoplay loop>
<source src="https://s3-us-west-1.amazonaws.com/hmt-forum/steel_mill_long_tube.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
I like how the 1 guy stays well outside of the fiery loop while the taller guy just calmly steps over it
I don't miss the cross country mills. The last one I saw here was sometimes in the '70s. Now they run light bar in a continuous line and the speeds are phenomenal (around 120 m/sec is common for rebar)
Filed under "Fun Things That We Can't Do in the US Anymore Because of OSHA". LOL
You have to wonder about the guys designing the original production process. One of the guys said, "Hey! We can just grab the glowing metal with tongs and thread it back into the machine before it goes completely sideways, can't we?" and another guy said "Sure! That should work!"
The cross country mill was developed around the turn of the last century (1905 if I remember correctly). Believe it or not, it was a safety improvement on the previous process where the guys had to catch the rods & feed them back over the mill. Process control at that time punched a clock.
Saw many of these back in the 70's when I was a machine operator in a small steelworks in Wales, fortunately I was well above the action in the control cabin.