produzione di materiali production of goods. come nascono how they are made plastica plastic carta...
TRANSCRIPT
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CIRCOLO DIDATTICO “AMITERNUM”L’AQUILA - ITALY
PRODUZIONE DI MATERIALIPRODUCTION OF GOODS
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COME NASCONOHOW THEY ARE MADE
Plastica
Plastic
CartaPaper
VetroGlass
MetalloMetal
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VETROGLASS
1MATERIE PRIME
MAIN INGREDIENTS
Calcare
Lim
estone
Soda
SodaSabbia
Sand
Viene preparata una miscela di sabbia, soda e calcareSand, soda and lime are mixed together
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2FUSIONE
HEATING
La miscela viene introdotta in un forno a temperatura elevatissima (1300-1600 C°)The mixture is put into a furnace and heated to 1300-1600 C°
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3FORMATURA
MOULDING
La miscela allo stato fuso viene modellata (per soffiatura libera e meccanica, pressatura, floating glass, ecc.)Liquid glass is mold (by free and mechanical blowing, flattening, floating, …)
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4RICOTTURA E RAFFREDDAMENTO
HEATING AND COOLING
Una volta "formato", il vetro viene nuovamente portato ad una alta temperatura e poi lentamente fino alla temperatura ambiente The glass is put into a furnace again and then cooled slowly
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PRODOTTI IN VETROTYPES OF GLASS
Vetro cavo bottiglie bicchieri flaconi
brocche barattoli
Hollow glass bottles, glasses,
jars…
Vetri piani finestrespecchi
Plate glass windows, mirrors
Vetro per ottica
per occhiali, microscopi,
binocoli, obiettivi
Optical glass for eye glasses,
binoculars, microscopes,
lenses
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Vetro di sicurezza
parabrezzaedilizia
Safety glass car glassbuilding
Vetri artisticivetratemosaici
Coloured glass decorated windows
decorated walls
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PROPRIETA’ DEL VETROPROPERTIES OF GLASS
è trasparenteit’s transparent
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è duroit’s hard
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è fragileit’s fragile
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è impermeabileit’s waterproof
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isola dal caloreit’s a thermal insulator
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isola dall’elettricitàit’s an electrical insulator
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isola dai suoniit’s sound proof
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LA CARTA - PAPERNormalmente, per fabbricare la
carta, è necessario tagliare alberi. Dopo la sua utilizzazione, la carta prodotta viene portata in discarica.
It is normally necessary to cut trees to make paper. After its use, it is taken to the dump.
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CURIOSITA’ – CURIOSITY
Per produrre una tonnellata di carta vergine occorrono 15 alberi, 440.000 litri d’acqua e 7.600 kwh di energia elettrica; per produrre una tonnellata di carta riciclata bastano invece 1.800 litri d’acqua e 2.700 kwh di energia elettrica.
To produce one ton of vergin paper, 15 trees, 440.000 litres of water and 7.600 kwh of electric energy are needed; on the other hand to produce one ton of recycled paper, 1.800 litres of water and 2.700 kwh of electric energy are sufficient.
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CHE COS’E’ LA PLASTICA?La plastica è un materiale originato dal petrolio. Il termine “plastica” deriva dalla parola greca “plastikos” che significa adatto per essere plasmato e da “plastos”, che significa plasmato.
Plastic. What’s that?Plastic comes from oil. The word “plastic” derives
from the greek word “plastickos” that means
suitable to be moulded and from “plastos” that
mesans moulded.
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LA PLASTICA E I SUOI VANTAGGI
Plastic and its advantages
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LA PLASTICA E’ OVUNQUE … O QUASI
Molti oggetti di uso quotidiano sono fatti di plastica. La plastica è usata in vari settori:
Plastic is almost everywhere.Many items in daily use are made out of plastic.
Plastic is used in different fields:
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Ciao! Sono la signora Mina Allumina
Per gli amici Al For friends Al
Hello! I'm Mrs. Mina Alumina
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Le mie componenti sono oggetti di Alluminio, il più giovane tra i metalli
My components are objects of Aluminum, the youngest among metals
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L’Alluminio in natura non è libero, ma si trova in molti minerali e in special modo nella bauxite
The aluminum in nature is not free, but it is found in many minerals and especially in the bauxite
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Le qualità dell’Alluminio sono tante.E’ lucido, liscio, duttile, leggero ma resistente. Ha
un’ottima conducibilità termica e risonanza sonora.Per questi motivi è molto richiesto
The qualities of Aluminum are many. It’s shiny, smooth, supple, lightweight but durable. It
has excellent thermal conductivity and sound resonance.
For these reasons, it is highly demanded
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È utile per costruire It is useful to build …
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AereiAirplanes
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TreniTrains
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AutomobiliCars
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BicicletteBikes
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FinestreWindows
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PorteDoors
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Lo sapevate che è in alluminio il più grande orologio d’Europa realizzato nella stazione
londinese di St. Pancras?
Did you know that the biggest clock in Europe in the station to London St Pancras is made of aluminum ?
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La famosa torcia simbolo dei Giochi Olimpici 2008 è stata realizzata in alluminio
The famous symbol of the 2008 Olympic Games torch was made of aluminum
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But here we are in Paris' La Villette Park What you see is the large auditorium nicknamed The hill aluminum
Qui invece siamo a Parigi, nel Parco La VilletteQuello che vedete è il grande auditorium soprannominato La collina di alluminio
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Benvenuti nella mia casaWelcome to my house
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Lavori di costruzioneConstruction work
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Ecco pronta la casa di ALHere is Al’s House
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Come nasce l’Alluminio?Ecco a voi qualche informazioneHow is the aluminium made? Here is some information to you
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L’Alluminio è un metallo che deriva dal minerale della bauxite, una roccia sedimentaria di colore generalmente
rosso cupo con irregolari macchie biancastre
Aluminium is a metal that is derived from the bauxite ore. Bauxite is a sedimentary rock usually deep red in
color with irregular whitish spots
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La bauxite è un minerale presente nelle aree tropicali e subtropicali
Bauxite is a mineral found in tropical and subtropical areas
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La produzione mondiale di bauxite è di circa 205000 tonnellate annue e il paese che ne produce di più è la Guinea con circa
180000 tonnellate annueWorld production of bauxite is about 205,000 tons per year and
the country that produces the most is the Guinea with about 180,000 tons per year
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E’ molto complesso isolare l’alluminio dalla bauxite attraverso un processo chimico ed elettrolitico, ma
soprattutto comporta un elevato consumo di energia elettrica: infatti per produrre alluminio primario
sono necessari
13 Kwh KgIt’s very difficult to isolate the aluminum from
bauxite through a chemical process and electrolyte, but mostly involves a high consumption of electricity
is in fact needed to produce primary aluminum
13 kWh kg