Summary
Samenvatting glas en email
- Course
- Institution
Samenvatting van 7 pagina's voor het vak Materiaal en technieken aan de KU Leuven (samenvatting)
[Show more]
Seller
Followsimonjoostens
Content preview
GLAS & EMAILGrondstoffen
Glas
stollingsgesteente
obsidiaan
bergkristal
o een in de natuurvoorkomende grondstof
o niet geschikt om glas v te maken -> wel slijpen en graveren
basisstof + vloeimiddel + stabilisator + zuiveringsmiddel
Basisstof
silicium (= (kiezel)zand of kwarts)
Vloeimiddel (zout)
soda/ natriumcarbonaat
o uit de as v algen of uit zeewier
o daling vh SP tot 1200 °C
potas/ kaliumcarbonaat
o dr verbranding v varens of beukenhout
o gebruikt vr het maken v woudglas
borax/ natriumzout
Stabilisator
calcium
loodoxide (betere schittering & stevigheid)
magnesium
Zuiveringsmiddel (tegen luchtbellen)
arsenicumoxide
salpeter
Courante glassoorten
glas
o natronkalkglas, natronglas, sodaglas
o basisstof: silicium
kristal
o kristalglas, kaliumkalkglas, Boheems kristal
o vloeimiddel: potas
Gebruiks- & sierglas
Productietechnieken
glasoven: 3 verdiepingen
o onderaan: stookoven (brandstof)
o midden: frit
o bovenaan: koeloven
proces:
o verschillende componenten samen in een glasoven verhit (smeltmassa)
o glasmassa laten afkoelen (frit)
o frit verpulveren en toevoegen ae nieuwe smeltmassa (om ST te verlagen)
o gesmolten massa = paraison
verschillende technieken
o glasblazen
proces:
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller simonjoostens. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.30. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78998 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now