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Plastic Blow Moulding: PET Bottles and HDPE Drums
Hollow plastic is blown. A PET drinks bottle starts as an injection-moulded preform, a thick test tube with the finished screw neck; it is reheated, usually with infrared heaters, above its glass transition temperature, stretched by a core rod and blown with high-pressure air against a cold metal mould. Drums and jerrycans are extrusion blow moulded: a hot tube, the parison, is extruded, closed in the mould and blown out.
Juu
Seconds per bottle
Maagizo
1
1
Preforms
Preforms
PET preforms come from injection moulding with the neck finished; they are dried and stored.
Vifaa kwa hatua hii:
Kianzio cha chupa100 vipande2
2
Reheat
Reheat
Preforms pass infrared heaters until soft, just above PET's glass transition temperature.
Zana zinazohitajika:
Mashine ya kupuliza vibao ya mezani3
3
Stretch and blow
Stretch and blow
In the closed bottle mould a rod stretches the preform lengthwise while high-pressure air blows it out to the mould wall, which cools it.
Zana zinazohitajika:
Mashine ya kupuliza vibao ya mezani
Kalibu ya kupuliza4
4
Extrusion blow moulding
Extrusion blow moulding
For HDPE drums, a parison is extruded downward, the mould closes on it, pinching the bottom, and air blows it out.
Vifaa kwa hatua hii:
Chembechembe za HDPE20 kgZana zinazohitajika:
Kitoaji cha plastikiKalibu ya kupuliza5
5
Check
Check
Bottles are checked for even wall thickness and leaks.
Zana zinazohitajika:
Kipima-unene cha dijitali cha inchi 6Vifaa
2- 100 vipandeKishikilia Nafasi
- 20 kgKishikilia Nafasi
Zana Zinazohitajika
4- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.