A glass bottle is a bottle created from glass. Glass bottles can vary in size considerably, but are most commonly found in sizes ranging between about 10ml and 5 litres.
The history of glass can be traced back to at least 12,000 BC where glass coated objects have been found.[1]
Millions of glass bottles are created worldwide every day. On average there are at least 2 bottle-making factories in each county. It is a highly mechanized process, and the bottles in use now are no longer hand blown as they were in the past.[citation needed]
When glass bottles of liquid are dropped or subjected to shock, the water hammer effect may cause hydrodynamic glass breakage.[2][3]
Glass bottles manufacturing takes place over several stages. To briefly outline the processes from beginning to end: raw material, melting, forming, annealing, physical inspection, machine & laser inspection, physical inspection (second time), quality control, and finally packing.[4]
To strengthen glass bottles, the process of lamination is sometimes done. Laminated safety glass is made by combining a layer of plastic over glass. When a non-laminated bottle is dropped, the glass breaks sending pieces of glass everywhere. When a laminated bottle is dropped, the glass still breaks, though the outer layer of plastic contains the broken pieces of glass.[1]
Coca-Cola's "Contour Bottles" are a well known type of glass bottles.
See also
References
- ^ a b "Glass Information". http://www.sks-bottle.com/Glass_Info.html. Retrieved 2008-10-02.
- ^ Saitoh, S (1999). "Water hammer breakage of a glass container". International glass journal (Faenza Editrice,). ISSN 1123-5063.
- ^ Brandt RC; Tressler RE (1994). Fractography of Glass. Plenum Press. ISBN 0-306-44880-7. http://books.google.com/books?id=oS6nR9729XUC&pg=PA248&lpg=PA248&dq=bottle+water+hammer&source=bl&ots=4C2R3a_nCV&sig=OXhp_DQo5Uf6DPyysPMUE0U9lF4&hl=en&ei=aJjKSZD0OuXfnQeoo7zKAw&sa=X&oi=book_result&resnum=2&ct=result#PPP1,M1.
- ^ "Glass Manufacturing". http://www.silverspurcorp.com/company/articles/glass_bottles_production_manufacturing.html. Retrieved 2008-11-26.
External links
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