Vic787
26-12-2007, 16:00
Any Iron and Steel workers out there know what a ' Bolter Down in a Rolling Mill ' is or was? Can you let me know please.
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View Full Version : Rolling Mill Occupation Vic787 26-12-2007, 16:00 Any Iron and Steel workers out there know what a ' Bolter Down in a Rolling Mill ' is or was? Can you let me know please. lazyherbert 26-12-2007, 17:37 Any Iron and Steel workers out there know what a ' Bolter Down in a Rolling Mill ' is or was? Can you let me know please. The term was Belter down.He is the man who receives the billet from the furnace,maybe a 3" billet .He then passes it through the rolls until it is maybe 7/8" or 3/4".He then passes it on to the next set of rolls where they will reduce it further.the process goe`s on until they obtain the required size & section. Appolo 26-12-2007, 23:29 Any Iron and Steel workers out there know what a ' Bolter Down in a Rolling Mill ' is or was? Can you let me know please. I worked in the rolling mills for 20 years as near as. Starting from The Furnace Man he used to load up the cold billets into the furnace,& when they had reached their heat he would get them out with tongues & trail them to the rolls then there would be the Cog Backers & the Prial backers who would pass the hot billets through smaller & smaller rolls till they were at their required size,they were supported by the Hookmen who took the weight of the heavy hot billets there would be an Under Roller & the main man The Roller usually at the end rolls making sure the finished aticle was the correct size. Then there would be a Trailer Down who would run the finished steel to the Shearman if it was a square or oval finish or the Sawmen if it was round finish then to the hot Reelers where the Reelermen would pass the round bars through the cold rollers to ensure perfect straightness & circumference. The bar s would then be stacked & allowed to cool before being bundled by the Slingers & then being hoisted away by the Craneman either on to a lorry or held in stock. Every Mill had their different working titles for their workforce, this 1 was my old Mill & it's job titles. Floridablade 27-12-2007, 04:55 I worked as a plate lad which is the final operation and then I was on the furnace. The first set of rollers were the cogbackers, the billet went into the bottom of 3 rollers then back through the top of the 3 until they were of a certain size then onto the next set until finally onto the plate to cool. The plate lad had to grab hold of the steel strip with a pair of tongues and then walk fast as the finishing rollers discharged it. We looked like miners because the works were filled with filthy black dust all the time. lazyherbert 27-12-2007, 09:27 Any Iron and Steel workers out there know what a ' Bolter Down in a Rolling Mill ' is or was? Can you let me know please. Have any of the explanations been of any use. cat631 27-12-2007, 12:02 Very interesting. What is the difference between billets and blooms please? Vic787 27-12-2007, 14:43 Fantastic, thankyou. Obviously a mss splling on a Birth Certificate (sorry for the pun) lazyherbert 27-12-2007, 15:32 To my understanding a billet is rolled from a bloom.A bloom could weigh 2 ton & the it is rolled down to 2-3 Or 4 inch billet size then cut into required lengths. Malky 27-12-2007, 15:46 Squares Blooms: 211 - 457 mm sq Billets: 75 – 211 mm sq Rounds Rolled: 76 – 381 mm dia (larger sizes by agreement) Turned: 70 – 350 mm dia http://www.corusgroup.com/en/products/bar_and_billet/hot_rolled/ cat631 27-12-2007, 20:11 Thanks Herbert and Malky, greatly appreciated. Malky 27-12-2007, 20:21 Thanks Herbert and Malky, greatly appreciated. No problem, I worked at a mill and never heard of the job you described but different mills could use different terms, basically you start with a ingot, a bloom is a intermediate stage and you end up with a billet. lazyherbert 27-12-2007, 21:05 I worked on a 10" double duo mill for about 35 yrs & we rolled billets.The biggest we rolled were 3" & we would take them down to all sizes and sections.As small as 1/4" round or 3/8" three square for files.We did up to 1 3/4" round as well.Flats ,octogans,hexagons,bevels & various other sections as well. cat631 27-12-2007, 21:58 Between Attercliffe Road and Stevenson Road is Slitting Mill Lane, would you know what a slitting mill was or is? Thanks. Vasquez Rich 27-12-2007, 22:41 That would be a line for slitting coil or sheet into strip. Richard Appolo 28-12-2007, 00:10 Between Attercliffe Road and Stevenson Road is Slitting Mill Lane, would you know what a slitting mill was or is? Thanks. Hi I hope this answers your question. From Wikipedia, the free encyclopedia The slitting mill was a watermill for slitting bars of iron into rods. The rods then were passed to nailers who made the rods into nails, by giving them a point and head. The slitting mill was probably invented near Liège in what is now Belgium. The first slitting mill in England was built at Dartford, Kent in 1590. This was followed by one on Cannock Chase by about 1611, and then Hyde Mill in Kinver in 1627. Others followed in various parts of the England where iron was made. However there was a particular concentration of them on the River Stour between Stourbridge and Stourport, where they were conveniently placed to slit iron that was brought up (or down) the River Severn before it reached nailers in the Black Country. The slitting mill consisted of two pairs of rolls turned by water wheels. Mill bars were flat bars of iron about three inches wide and half an inch thick. A piece was cut off the end of the bar with shears powered by one of the water wheels and heated in a furnace. This was then passed between flat rolls which made it into a thick plate. it was then passed through the second rolls (known as cutters), which slit it into rods. The cutters had intersecting grooves, which sheared the iron lengthways. lazyherbert 28-12-2007, 09:44 Hi I hope this answers your question. From Wikipedia, the free encyclopedia The slitting mill was a watermill for slitting bars of iron into rods. The rods then were passed to nailers who made the rods into nails, by giving them a point and head. The slitting mill was probably invented near Liège in what is now Belgium. The first slitting mill in England was built at Dartford, Kent in 1590. This was followed by one on Cannock Chase by about 1611, and then Hyde Mill in Kinver in 1627. Others followed in various parts of the England where iron was made. However there was a particular concentration of them on the River Stour between Stourbridge and Stourport, where they were conveniently placed to slit iron that was brought up (or down) the River Severn before it reached nailers in the Black Country. The slitting mill consisted of two pairs of rolls turned by water wheels. Mill bars were flat bars of iron about three inches wide and half an inch thick. A piece was cut off the end of the bar with shears powered by one of the water wheels and heated in a furnace. This was then passed between flat rolls which made it into a thick plate. it was then passed through the second rolls (known as cutters), which slit it into rods. The cutters had intersecting grooves, which sheared the iron lengthways. Worked in rolling mills all my life & that is the first time I have heard of that.Thanks. Greybeard 28-12-2007, 16:57 Worked in rolling mills all my life & that is the first time I have heard of that.Thanks. A strange quirk of history is that the site of the old Attercliffe Slitting Mill should, in modern times, be occupied by Alloy Steel Rods Ltd. - I wonder what the 18th. century 'roller' would have thought of the conti-loop system ? |