SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Plastic Sheet and Blown Film Extrusion
Flat plastic comes from an extruder in two ways. Sheet too thick to blow is pushed through a wide slit die and pulled through chill rolls, which cool it and set its thickness and surface. Thin film is blown: a tube is extruded upwards from a ring die, inflated by air into a tall bubble that stretches it both ways, cooled, flattened by nip rolls into lay-flat tube, and wound or slit. Bags are cut and heat-sealed from the lay-flat tube; wrap is slit film.
Juu
Continuous (industrial)
Maagizo
1
1
Melt
Melt
Pellets are melted along the extruder's heated screw.
Vifaa kwa hatua hii:
Chembechembe za polipropilini100 kg
Chembechembe za mchanganyiko wa PVC ngumu100 kg
Chembechembe za LDPE100 kg
Chembechembe za HDPE100 kg
Chembechembe za mchanganyiko wa PVC laini100 kgZana zinazohitajika:
Kitoaji cha plastiki
Chombo cha Kulisha Vidonge2
2
Sheet: slit die and chill rolls
Sheet: slit die and chill rolls
For sheet, the melt leaves a wide slit die and passes between chill rolls that cool it and set its thickness.
Zana zinazohitajika:
Kitoaji cha plastiki
Kalibu ya kitoaji3
3
Film: blow a bubble
Film: blow a bubble
For film, a tube is extruded upward from a ring die and inflated with air into a bubble, stretching it thin both across and along; an air ring cools it.
Zana zinazohitajika:
Kitoaji cha plastikiKalibu ya kitoaji4
4
Flatten and wind
Flatten and wind
Nip rolls flatten the bubble into lay-flat tube, which is wound up or slit into sheeting.
5
5
Bags
Bags
Lay-flat tube is cut to length and heat-sealed across the bottom to make bags and liners.
6
6
Check
Check
Thickness is measured across the width.
Zana zinazohitajika:
Kipima-unene cha dijitali cha inchi 6Vifaa
5- Kishikilia Nafasi
- Kishikilia Nafasi
- 100 kgKishikilia Nafasi
- 100 kgKishikilia Nafasi
- Kishikilia 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.