BLOWED up real good. Foundry worker puts wet scrap metal in furnace. This is what happens: | |
Anonymous Coward User ID: 78094294 United States 11/28/2019 07:06 PM Report Abusive Post Report Copyright Violation | |
tibetbill User ID: 77798507 United States 11/28/2019 07:24 PM Report Abusive Post Report Copyright Violation | Driver was very lucky. If it had been a large foundry the entire bucket would have blown molten metal everywhere. Few people have any idea what happens when water is instantaneously vaporized into superheated steam in conjunction with metallic gasses. |
Judethz
User ID: 75895360 United Kingdom 11/28/2019 07:30 PM Report Abusive Post Report Copyright Violation | Driver was very lucky. If it had been a large foundry the entire bucket would have blown molten metal everywhere. Few people have any idea what happens when water is instantaneously vaporized into superheated steam in conjunction with metallic gasses. Quoting: tibetbill 77798507 We do in ours after my step sister set a BBQ on concrete and it exploded. |
Anonymous Coward User ID: 78055158 United States 11/28/2019 07:42 PM Report Abusive Post Report Copyright Violation | I doubt that water did that. I suspect there was some kind of high pressure gas tank of something volatile in that compacted heap of scrap. Water would vaporize & cook off fast. That's got to be some halfass country like China with shit for safety standards. American foundries have giant crucibles usually perched over a blast furnace & gantry cranes for feeding stock into it from above. The guy driving the forklift didn't even appear to be wearing an aluminized foundryman's coat. The scrap looks like aluminum - another possibility is they mixed magnesium metal in with it. Easy to mistake the 2 in a scrap metal operation & magnesium is highly combustible. |
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Anonymous Coward User ID: 78170378 United States 11/28/2019 08:04 PM Report Abusive Post Report Copyright Violation | I doubt that water did that. I suspect there was some kind of high pressure gas tank of something volatile in that compacted heap of scrap. Water would vaporize & cook off fast. Quoting: XeroGravity That's got to be some halfass country like China with shit for safety standards. American foundries have giant crucibles usually perched over a blast furnace & gantry cranes for feeding stock into it from above. The guy driving the forklift didn't even appear to be wearing an aluminized foundryman's coat. The scrap looks like aluminum - another possibility is they mixed magnesium metal in with it. Easy to mistake the 2 in a scrap metal operation & magnesium is highly combustible. And you would be wrong. Try pouring molten metal into a mold with just a few drops of water in it then get back to us. |
Anonymous Coward User ID: 77798507 United States 11/28/2019 08:05 PM Report Abusive Post Report Copyright Violation | 78055158, you can doubt what water can do with respect towards causing an explosion in a foundry. When you are pouring metal or have a hot kettle, water is the most dangerous thing in the foundry, even more than the hot molten metal. Just go on youtube and look up foundry explosions. Good thing that you do not work in a foundry, |
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Anonymous Coward (OP) User ID: 77994583 United States 11/28/2019 08:11 PM Report Abusive Post Report Copyright Violation | 78055158, you can doubt what water can do with respect towards causing an explosion in a foundry. When you are pouring metal or have a hot kettle, water is the most dangerous thing in the foundry, even more than the hot molten metal. Just go on youtube and look up foundry explosions. Quoting: Anonymous Coward 77798507 Good thing that you do not work in a foundry, I heard that even heavy moisture on metals could cause an explosion if dropped in a foundry. |
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tibetbill User ID: 77798507 United States 11/28/2019 08:31 PM Report Abusive Post Report Copyright Violation | It was already said that the scrap was wet. Yes, if you were to heat the scrap before you dropped it into the melt, yeah, okay, but it came into contact with molten metal. It was wet metal. For those of you who can read, go to this article, [link to www.foundrymag.com (secure)] |
Anonymous Coward User ID: 78015690 Mexico 11/28/2019 08:32 PM Report Abusive Post Report Copyright Violation | I doubt that water did that. I suspect there was some kind of high pressure gas tank of something volatile in that compacted heap of scrap. Water would vaporize & cook off fast. Quoting: XeroGravity That's got to be some halfass country like China with shit for safety standards. American foundries have giant crucibles usually perched over a blast furnace & gantry cranes for feeding stock into it from above. The guy driving the forklift didn't even appear to be wearing an aluminized foundryman's coat. The scrap looks like aluminum - another possibility is they mixed magnesium metal in with it. Easy to mistake the 2 in a scrap metal operation & magnesium is highly combustible. All it takes is one ounce of water getting under molten steel and you'll instantly eject 30+ tons. |
Anonymous Coward User ID: 78015690 Mexico 11/28/2019 08:33 PM Report Abusive Post Report Copyright Violation | I doubt that water did that. I suspect there was some kind of high pressure gas tank of something volatile in that compacted heap of scrap. Water would vaporize & cook off fast. Quoting: XeroGravity That's got to be some halfass country like China with shit for safety standards. American foundries have giant crucibles usually perched over a blast furnace & gantry cranes for feeding stock into it from above. The guy driving the forklift didn't even appear to be wearing an aluminized foundryman's coat. The scrap looks like aluminum - another possibility is they mixed magnesium metal in with it. Easy to mistake the 2 in a scrap metal operation & magnesium is highly combustible. All it takes is one ounce of water getting under molten steel and you'll instantly eject 30+ tons. Steel mill cranes are armor plated and have 2 inch thick bullet proof glass. |
Anonymous Coward User ID: 78015690 Mexico 11/28/2019 08:39 PM Report Abusive Post Report Copyright Violation | That was nothing. First of all it was a puny foundry. Second of all, it was not steel, it was aluminum. A real blast sends chunks flying for miles, I saw the aftermath of one where half inch steel plate was perforated like a salt shaker for 200 feet. That one killed bystanders but the crane operator survived. |
Anonymous Coward User ID: 5953428 United States 11/28/2019 08:40 PM Report Abusive Post Report Copyright Violation | I doubt that water did that. I suspect there was some kind of high pressure gas tank of something volatile in that compacted heap of scrap. Water would vaporize & cook off fast. Quoting: XeroGravity That's got to be some halfass country like China with shit for safety standards. American foundries have giant crucibles usually perched over a blast furnace & gantry cranes for feeding stock into it from above. The guy driving the forklift didn't even appear to be wearing an aluminized foundryman's coat. The scrap looks like aluminum - another possibility is they mixed magnesium metal in with it. Easy to mistake the 2 in a scrap metal operation & magnesium is highly combustible. All it takes is one ounce of water getting under molten steel and you'll instantly eject 30+ tons. Melt furnace does not hold 30 tons. Usually metal is set to warm up and dry before it goes into the melt furnace. And yes..the fork truck driver isn't wearing proper PPE. Could be wet but cold metal has the same reaction. |
Anonymous Coward User ID: 5953428 United States 11/28/2019 08:46 PM Report Abusive Post Report Copyright Violation | That was nothing. First of all it was a puny foundry. Second of all, it was not steel, it was aluminum. Quoting: Anonymous Coward 78015690 A real blast sends chunks flying for miles, I saw the aftermath of one where half inch steel plate was perforated like a salt shaker for 200 feet. That one killed bystanders but the crane operator survived. Negative.. splashes usually are at most 100 feet as the aluminium cools rapidly under such conditions. Aluminium melt temps are about 1300 deg ...steel is a few hundred degrees hotter. |
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Too Dark Park™ Two
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Anonymous Coward User ID: 55613935 United States 11/28/2019 09:17 PM Report Abusive Post Report Copyright Violation | I doubt that water did that. I suspect there was some kind of high pressure gas tank of something volatile in that compacted heap of scrap. Water would vaporize & cook off fast. Quoting: XeroGravity That's got to be some halfass country like China with shit for safety standards. American foundries have giant crucibles usually perched over a blast furnace & gantry cranes for feeding stock into it from above. The guy driving the forklift didn't even appear to be wearing an aluminized foundryman's coat. The scrap looks like aluminum - another possibility is they mixed magnesium metal in with it. Easy to mistake the 2 in a scrap metal operation & magnesium is highly combustible. And you would be wrong. Try pouring molten metal into a mold with just a few drops of water in it then get back to us. I've done that numerous times. It depends on the metal. One process required pouring molten metals into water. I was surprised when I did some experimentation with different metals with completely different results. I don't think It would be wise to describe each reaction because I wouldn't want others to attempt to duplicate the results. The problem is the decomposition of the water molecule with the subsequent explosion of free hydrogen. The original video was likely water. I've never worked with magnesium on a professional scale, but magnesium wouldn't have exploded, if anything, it would have created a serious fire at the air surface. The molten metal was likely aluminum which is very low temp. compared to steel. No doubt the driver got hit with splatter and suffered greatly. |