Kodi pali kusiyana kotani pakati pa makina omangira jakisoni a PET preform ndi makina ojambulira wamba?

Katswiri Makina opangira jakisoni a PET preform zimasiyana kwambiri ndi makina omangira jekeseni wamba, popeza idapangidwa mwapadera kuti igwirizane ndi mawonekedwe apadera akuthupi ndi mankhwala a PET resin, zomwe makina wamba sangathe kukwanitsa. Zinthu za PET zimakhala ndi mayamwidwe apamwamba kwambiri, tcheru kuwonongeka kwa kutentha, otsika kusungunuka mamasukidwe akayendedwe, ndi zofunika okhwima kwa plasticization mafananidwe ndi liwiro akamaumba, zonsezi zimafuna masinthidwe apadera a makina. Choyamba komanso chofunika kwambiri, dongosolo la plasticizing ndi losiyana kotheratu. Makina a PET preform ali ndi zomangira zodzitchinjiriza ndi mbiya yokhala ndi kutalika kwa m'mimba mwake. 24:1 kuti 26:1, zokhala ndi ma screw grooves osaya komanso osapanga ma angle akufa. Kapangidwe kameneka kamapewa kumeta ubweya wambiri komwe kumayambitsa kusweka kwa ma cell a PET, bwino kuteteza kusungunula chikasu, carbonization, ndi kuchepetsa kuwonekera pa kutentha kwambiri processing. Motsutsana, zitsulo zamakina ojambulira zokhazikika zimapangidwira mapulasitiki achilengedwe monga PP ndi ABS, kutulutsa kutentha kwambiri kwa shear komwe kumawononga mosavuta zida za PET ndikupanga mawonekedwe osalongosoka okhala ndi mikwingwirima yachikasu ndi chifunga.. Kachiwiri, dongosolo la kutentha kwa Makina a PET preform imathandizira kuwongolera kutentha kwanthawi zonse kwa PID, kuphimba mbiya, mphuno, ndi adaputala ya nkhungu yokhala ndi vuto la kutentha lomwe limayendetsedwa mkati mwa ± 1°C. Popeza kutentha kwa PET kumachokera ku 260 ° C mpaka 285 ° C, ngakhale kutentha pang'ono komweko kungayambitse kuchuluka kwa acetaldehyde ndi ukalamba wakuthupi, vuto lomwe makina wamba omwe ali ndi kutentha kwapang'onopang'ono sangapewe. Komanso, Kupanga ma preform a PET kumafuna kudzazidwa kwakhoma kothamanga kwambiri komanso kulimba kolimba kwambiri kuti zitsimikizire kutseka kwa nkhungu zofananira ndikupewa kung'anima pama preform amitundu yambiri.. Makina aukadaulo a preform amatengera ma tempuleti olimba kwambiri komanso makina ojambulira othamanga kwambiri, kukwaniritsa kudzazidwa kokhazikika kothamanga kwambiri mkati 0.1 masekondi, pomwe makina okhazikika amakhala ndi kuyankha pang'onopang'ono kwa jakisoni komanso kusakhazikika kolimba, zomwe zimatsogolera ku makulidwe a khoma la preform komanso zokolola zochepa. Kuphatikiza apo, makina odzipatulira a PET amakongoletsedwa ndi nthawi yochepa yokhalamo, zokhala ndi ma mayendedwe oyenda bwino komanso zida zothana ndi zotumphukira za nozzle kuti muchepetse kusungunuka ndi kuwonongeka.. Amasungiranso malo olumikizirana akatswiri othandizira zida monga zowumitsa zowumitsa ndi zoziziritsa kukhosi, kupanga dongosolo lathunthu lopanga PET. Makina ojambulira okhazikika alibe kukhathamiritsa komwe akuwafunira, kupangitsa kuti ntchito ikhale yochepa, mitengo yolakwika kwambiri, ndi kulephera kukwaniritsa miyezo yopangira chakudya cham'mbuyomu. Powombetsa mkota, makina wamba jakisoni amatha kungomaliza kuumba pulasitiki kosavuta, pomwe makina aukadaulo a PET amayang'ana kwambiri kuwonekera kwambiri, otsika acetaldehyde, zokolola zambiri, ndi kupanga kothamanga kwambiri, kufananiza okhwima ndondomeko zofunika za PET preform kupanga.