UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
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.
Hejuru
Seconds per bottle
Amabwiriza
1
1
Preforms
Preforms
PET preforms come from injection moulding with the neck finished; they are dried and stored.
Ibikoresho by'iyi ntambwe:
Igishushanyo mbanza cy'icupa100 ibice2
2
Reheat
Reheat
Preforms pass infrared heaters until soft, just above PET's glass transition temperature.
Ibikoresho bikenewe:
Imashini yo ku meza ihuha uburyo3
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.
Ibikoresho bikenewe:
Imashini yo ku meza ihuha uburyo
Ikibumbiro cyo guhuha4
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.
Ibikoresho by'iyi ntambwe:
Utubuye twa HDPE20 kgIbikoresho bikenewe:
Imashini isohora pulasitikiIkibumbiro cyo guhuha5
5
Check
Check
Bottles are checked for even wall thickness and leaks.
Ibikoresho bikenewe:
Ikigereranyo cya Digitale cy'Amasentimetero 6Ibikoresho
2- 100 ibiceUmwanya
- 20 kgUmwanya
Ibikoresho bikenewe
4- Umwanya
- Umwanya
Iki gishushanyo gikora
Blueprint zijyanye
Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame
CC0 Umurenge rusange
Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.
Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.