At 1.41 in. He got his numbers wrong there 25.000 - 30,00 staff. No way. I worked there from 1962 - 1970 in the West & South machine shops the staff being 4.000 for the whole firm. They were making a huge range of products then but now concentrate on specialized ones ie. large castings and forgings and have the machine tools that can machine these parts if needed. Two large jobs that I remember while working in the South Machine Shop were two 150 ton back up rolls for Krupp and a previous contract of 250 ton boiler drums for power stations. No CNC machines then all forging and machining done by the pure skill of the tradesmen.
oh if they have a 105 ton arc furnace how do they keep that much steel hot enough to cast in the largest of their castings since it has to be poured at once, it must take a long time to even melt the steel down 100 tons at a time and keep it in a ladle without it cooling or decarburizing.
The arc furnace takes an hour from dumping scrap inside it, to when it's molten and ready to tap. Ladles are lined with refractory clay and bricks, which insulates the steel to keep it hot for longer, as well as stop it melting the 'bucket' outer walls itself, which are made from steel. If a ladle of molten metal gets cooler than required, they stick three electrodes in it in a special and smaller kind of electric arc furnace called a ladle furnace.
@@AluminumOxide yes I know about an eaf, its just you would think for the giant casting that they are making it would lose its chemistry I mean the longer you keep steel hot or the more times you have to reheat it at least as far as forging it goes them more chance of loss of carbon and alloying elements, though I did not think about the ladle metalurgy furnace, I mean if they only melt 100 tons at a time filling up five or six ladles for one of the super giant castings must take a good amount of time is what I am saying, I was pretty sure a casting like that has to be poured all in one go dont it meaning they cant just pour half the needed amount and then comeback an hour later and pour more in the mold or flask they are casting it in, or can they?
There will be a skull left in the ladle ,you will need to tap the next heat hotter to melt it out and figure the alloys lower at tap so not to blow the range out the top. (If it's going to be an hour.) And also the heat your pouring is going to be short because of the skull (solidified steel) left in the bottom of the ladle.
At 1.41 in. He got his numbers wrong there 25.000 - 30,00 staff. No way. I worked there from 1962 - 1970 in the West & South machine shops the staff being 4.000 for the whole firm. They were making a huge range of products then but now concentrate on specialized ones ie. large castings and forgings and have the machine tools that can machine these parts if needed.
Two large jobs that I remember while working in the South Machine Shop were two 150 ton back up rolls for Krupp and a previous contract of 250 ton boiler drums for power stations. No CNC machines then all forging and machining done by the pure skill of the tradesmen.
Do you know anything about James Neill industry that used to be on Cemetery road in Sharrow area?
oh if they have a 105 ton arc furnace how do they keep that much steel hot enough to cast in the largest of their castings since it has to be poured at once, it must take a long time to even melt the steel down 100 tons at a time and keep it in a ladle without it cooling or decarburizing.
The arc furnace takes an hour from dumping scrap inside it, to when it's molten and ready to tap. Ladles are lined with refractory clay and bricks, which insulates the steel to keep it hot for longer, as well as stop it melting the 'bucket' outer walls itself, which are made from steel. If a ladle of molten metal gets cooler than required, they stick three electrodes in it in a special and smaller kind of electric arc furnace called a ladle furnace.
@@AluminumOxide yes I know about an eaf, its just you would think for the giant casting that they are making it would lose its chemistry I mean the longer you keep steel hot or the more times you have to reheat it at least as far as forging it goes them more chance of loss of carbon and alloying elements, though I did not think about the ladle metalurgy furnace, I mean if they only melt 100 tons at a time filling up five or six ladles for one of the super giant castings must take a good amount of time is what I am saying, I was pretty sure a casting like that has to be poured all in one go dont it meaning they cant just pour half the needed amount and then comeback an hour later and pour more in the mold or flask they are casting it in, or can they?
@Free Uyghur yes how ever you spell it, you think if you had to wait hours it would loose the carbon content and metalergy
There will be a skull left in the ladle ,you will need to tap the next heat hotter to melt it out and figure the alloys lower at tap so not to blow the range out the top. (If it's going to be an hour.) And also the heat your pouring is going to be short because of the skull (solidified steel) left in the bottom of the ladle.