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English translation?

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发表于 2021-8-31 22:53:42 | 显示全部楼层 |阅读模式
What is the English translation for this piece of equipment?http://www.staalspec.dk/images/040906Pladevalse.jpgbecause i cant seem to find a translation anywhere ¤If you got money, i've got time
Reply:It's a sheet metal roller/metal roller.
Reply:These are called "rolls" in english.Usually, if the top roll opens up to allow removing a cone shaped piece, they are called "slip rolls".If they are big enough to work with thicker material, for instance steel above 3mm in thickness, they would be called "plate rolls".We usually call anything under .125 inches in thickness "sheet" and anything over that "plate" so if the rolls themselves are larger in diameter than 8 cm or so, they would be "plate rolls", and under that, "sheet rolls"Here is a link to a similar set for sale in the USA-http://www.machinetools.com/MT/machi...43553353246510
Reply:Thank, Its because i wanted to do some research, before i started building my own... i need a small one, and they cost a fortune if a have to buy it.So i have one more question, does both the upper and lower roll get turned by the engine/handle, or is it just the lower roll?¤If you got money, i've got time
Reply:Yes, one of the uppers and the lower turn with the handle, the other one is for support.  On the back upper wheel there is a latch that allows the upper roller to "pop" out so you can get your steel in it.
Reply:Here's a couple of link's that will help you out, as well as a design.http://www.metalwebnews.com/howto/rolls/rolls.htmlhttp://www.integerspin.co.uk/beadroller.htmhttp://users.bigpond.net.au/ggoodacr...iy/roller.html
Reply:It depends on the model.On smaller ones, for sheet metal, usually 2 of the rolls are geared together, and turn as one when you turn the handle. The third roll is adjustable for height, to change the radius of the curve, but it freewheels- it is not driven.On larger, industrial models, it is common for all three rolls to be driven, either by gears, a chain drive, or by 3 seperate hydraulic motors.There used to be a company in Sweden, Gerver, that made nice sheet metal rolls and small shop equipment, but I dont know if they are still in business.Knuth sells cheaper imports in germany-http://www.knuth.de/Here is a link to a free manual online for a small one, that has a parts diagram.http://content.jettools.com/manuals/man_754020.pdfYou should be able to copy some of the mechanisms from this.
Reply:Thanks for clearing that up Ries, I should have thought to mention that, about the larger ones and the smaller ones.  The one I use is a smaller one where only 2 rollers are geared together.
Reply:Thank for all the replys Its a great help Some Facts.The sheet roll i plan to build, is going to be used for SS mufflers(inner(perforated sheet), outer casing(sheet).So my plan is to make the rolls Ø42(1.65")x500(19.70")mm that should make them strong enough to roll ss304/ss316 1.0(0.040")-2.0(0.078")mm.Any ideas are welcome.¤If you got money, i've got time
Reply:42mm diameter rolls to roll 2 mm 304 stainless is asking quite a bit. I have a set of commercially made, powered rolls that are rated at 120mm wide 2mm in mild steel. And they use 90mm diameter rolls. To roll stainless steel, you usually derate by 2 gages in US measurements- that would mean, in stainless, they are rated at only 1.5mm.Now, of course, this is a rating for full width, and in commercial, all day, every day use.But your little 42mm rolls are going to be working quite hard, and quite possibly flexing, if you roll full width 2mm 304 stainless. Stainless is very hard stuff, and I work quite a bit with it- and 2mm takes a lot of work to bend or roll.If you are only doing an occasional piece, and they are not all full thickness or full width, maybe. My 2mm roll has a 2hp motor with electric brake, a chain drive to the gear train, and weighs in at 1300lb (600kg). And yes, it will roll 2mm stainless, but not without grunting and wheezing. I would make every part bigger, and heavier, than you see when you look at small rolls. The forces involved go up with the square of the material thickness- so a machine that does 12 gage must be 4 times as heavily built as one that does 16 gage. The small commercial rolls are usually rated at 22 gage (.77mm) and that is in mild steel- downgrade capacity by 30 percent or so for stainless. These are the rolls that have 42mm diameters. Here is my 2mm machine- observe how heavily built it is.And this set is my .77mm rolls (22 gage) they look like what you are proposing, and they will definitly NOT roll 2mm stainless.
Reply:I see your point.but lets say 1.0mm ss304, would the rolls just become curved?, because the Sheet roll we have where i work, curves abit because someone rolled some 10mm plate, and the rolls are Ø120mm and they dont curve that much, but still its a pain in the a$$,.But i can live with the rolls being curve a little bit. ¤If you got money, i've got time
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