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Samenvatting materiaalles & gastles GLAS - Zakboek Verpakkingen, ISBN: 9789062286058 Packaging Design 2422 (FI2422) $6.51   Add to cart

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Samenvatting materiaalles & gastles GLAS - Zakboek Verpakkingen, ISBN: 9789062286058 Packaging Design 2422 (FI2422)

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Samenvatting materiaalles & gastles GLAS - Zakboek Verpakkingen, ISBN: 6058 Packaging Design 2422 (FI2422)

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  • Yes
  • January 25, 2021
  • 1
  • 2020/2021
  • Summary
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Theorieles/gastles glas
Gronstoffen:
- zand
- soda
- kalksteen
- glasscherven
- kleurstoffen

Kleuren = Feeder folouring
Pigment toevoegen (metalen) in galsbad
- ijzeroxiden (groen/geel/bruin)
- chroomoxide (groen)
- koolstof + ijzeroxide + zwavel (bruin)
- kobaltrioxide (blauw)
- mangaandioxide (paars)
- koperoxide (turquoise)
- seleniumdioxide (rood)

Scherven toevoegen versnelt smeltproces:
10% scherven is 2,5% daling energieverbruik
Wit > 25% / 60% - Groen > 85% / 92% - Bruin > 70% / 90%

Productie:
Gemengen batch = mengen gronstoffen
Oven functie = gestookt op gas + electra = 1500+ graden
Productie hot-end  Sortering cold-end  Verpakken  Opslag  Transport 
Rookgasafvoer na stofschoning e-filter
Gobforming
Voorvorm (binnenkant) + navorm (buitenkant)
Insluiter = stukje niet glas materiaal (porselein)

Vormingsprocessen:
Blow-blow = BB
Press-blow = PB
Press-press (narrow neck) = PBNN

Eigenschappen:
- smelttraject ipv smeltpunt > vanaf 500 graden
- sterkte afhankelijk van spanningsverschillen en soort belasting
- thermische uitzetting (geleidelijk opwarmen/afkoelen)
- UV-barriere (donker groen/bruin/UV flint)
- geen bisphenol A en volledig inert (geen reactie of migratie met product)

Kosten > afwijkingen van bolle vorm en standaard kleur maakt duurder
Sluitingen > kurken, deksels, beugels etc.

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