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Aluminium Rolling: Plate, Sheet, Coil and Foil
Flat aluminium is made by squeezing a thick cast slab between rolls, many passes, each a little thinner. Product over about 6 mm thick is called plate, thinner sheet; foil is thinner still. The thinnest foil is rolled two layers at a time (pack rolling), which is why kitchen foil has one shiny side, against the roll, and one dull side, against the other layer. The same idea, done cold on a small hand mill, is how a maker rolls brass or copper strip.
Abantado
Hours per coil (industrial)
Mga Tagubilin
1
1
Cast slabs
Cast slabs
Aluminium is remelted and cast into thick rectangular slabs.
Mga materyales para sa hakbang na ito:
Bareta ng aluminyo500 kg2
2
Hot roll
Hot roll
The heated slab is passed back and forth through heavy rolls, thinner each pass, to plate or thick strip.
Mga kailangang kasangkapan:
Makinang panipis ng metal3
3
Cold roll to sheet
Cold roll to sheet
The strip is cold-rolled thinner, annealed when it becomes too hard to roll, and wound into coils for stamping presses or cut into sheets.
Mga kailangang kasangkapan:
Makinang panipis ng metal
Pugon ng pagpapalambot4
4
Pack-roll foil
Pack-roll foil
For the thinnest foil, two layers are rolled together and separated afterwards.
Mga kailangang kasangkapan:
Makinang panipis ng metal5
5
Trim and measure
Trim and measure
Edges are slit and the thickness measured: over 6 mm is plate, under is sheet.
Mga kailangang kasangkapan:
Digital na Kalibrador 6 PulgadaMga Materyales
1- 500 kgPlaceholder
Mga Kinakailangang Kasangkapan
3- Placeholder
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