Ama-polyester polymer chips afana ne-PET ane-hygroscopic, okusho ukuthi amunca umswakama ovela emkhathini ozungezile.Umswakama omningi kuma-chips ungabangela izinkinga ngesikhathi sokubunjwa komjovo kanye nokukhipha.Lapho ipulasitiki ishiselwa, amanzi aqukethe i-hydrolyzes PET, enciphisa amandla ayo kanye nekhwalithi.Lokhu kusho ukuthi umswakama obuningi ngangokunokwenzeka kufanele ususwe ku-resin ngaphambi kokucubungula i-PET emshinini wokubumba.Ngaphansi kwezimo zomoya, ama-resin angase aqukathe kufika ku-0.6% ngesisindo samanzi.
I-PET pellets yomiswa ngaphambi kokucubungula
Izingcezu zokhuni zilayishwa ku-hopper, bese umoya oshisayo owomile onezinga lokushisa elingamazolo elingama-50 ° C uphonswa ngaphansi kwe-hopper futhi ugeleze ubheke phezulu phezu kwama-pellets, ususa noma yimuphi umswakama osendleleni.Umoya oshisa kakhulu ushiya phezulu kwe-hopper futhi udlule ku-aftercooler kuqala, njengoba umoya obandayo ususa umswakama kalula kunomoya oshisayo.Umphumela womoya obandayo, omanzi ube usudluliswa embhedeni we-desiccant.Ekugcineni, umoya obandayo owomile oshiya umbhede we-desiccant ushiswa kabusha ku-heater yenqubo futhi ubuyiselwe ngenqubo efanayo ku-loop evaliwe.Umswakama wama-chips kufanele ube ngaphansi kuka-30 ppm ngaphambi kokucubungula.Lapho i-PET ishiselwa, noma imaphi amanzi akhona azokhipha i-hydrolyze ngokushesha i-polymer, ehlise isisindo samangqamuzana ayo futhi acekele phansi izici zayo ezibonakalayo.
Ukulinganisa okuku-inthanethi nokuhlola indawo
Kunezindlela ezimbili zokulinganisa umswakama ngesikhathi somiswa: ukulinganisa ku-inthanethi nokuhlola indawo.
① ukulinganisa okuku-inthanethi
Izomisa ngazinye zigadwa ngokuqhubekayo ukuze kuqinisekiswe ukuthi ukunikezwa komoya ku-PET kungcono kunomkhawulo oshiwo wamazolo wephuzu lamazolo angama-50 ° C ukuze kuqinisekiswe ukuthi impahla ye-chip yomiswa ngokuphumelelayo.Lapho kudingeka khona izilinganiso ezinembe ngokulinganisa kwangaphakathi okuzenzakalelayo, iInzwa yephoyinti lamazolo engu-HT-608ingafakwa eduze nendawo yokungena ye-drying hopper, futhi usayizi wayo omncane kanye nesisindo esincane kwenza kube lula ukuyifaka emiseleni noma ezindaweni eziqinile ukuze kuhlolwe ukuvuza kwendlela yomoya yokomisa.Ukunemba okuphezulu ±0.2 ° C (5-60 ° C Td), uma kuqhathaniswa nekhwalithi yemikhiqizo engenisiwe, ethengekayo, iyindlela engabizi kakhulu.
② Hlola futhi ulinganise
Ukuhlolwa kwendawo njalo no-HengkoI-HK-J8A102 izinga lokushisa elilinganiselwe eliphathwayo kanye nemitha yomswakamainganikeza isiqiniseko esingabizi kakhulu sekhwalithi yomkhiqizo.Kulula ukuyisebenzisa, ukulinganisa kanyekanye izinga lokushisa, umswakama, indawo yamazolo, isibani esimanzi nokunye ukwaziswa.Phendula ngokushesha ezindaweni ezijwayelekile zamazolo ezingaphansi kuka-50℃.
Ibanga lokulinganisa iphuzu lamazolo imitha lokushisa kanye nomswakama lithi: -50℃-60℃, futhi isikrini esikhulu se-LCD sikulungele ukufundwa nokufunda. Idatha yokulinganisa ibalwa kanye njalo ngama-millisecond angu-10, futhi isivinini sokuphendula siyazwela futhi ukulinganisa kunembile.
Isikhathi sokuthumela: Apr-21-2022
