Ezweni eliqhudelana kakhulu lokukhiqiza upulasitiki, indima yokuhamba komoya ayikwazi ukugcizelelwa kakhulu. I-Stonehouse Jia Yuan Plastic Products Co., Ltd. (石家庄嘉源塑料制品有限公司) yinkampani ehamba phambili ekukhiqizeni imikhiqizo ye-PVC eqinile esezingeni eliphezulu nezinye izinto zepulasitiki. Ngeminyaka yokuhlangenwe, le nkampani iye yaqeqesha ubuchwepheshe bayo ekuqinisekiseni ukuthi yonke imikhiqizo ihlangabezana namazinga aqinile, futhi isici esibalulekile kule mpumelelo ukuqonda izici zokuhamba komoya wezinto zabo. Lesi sihloko sihluza umqondo obalulekile wokuhamba komoya, ukulinganisa kwawo, ukubaluleka kwawo ekukhiqizeni, kanye nokusetshenziswa kwawo ezimbonini ezahlukene, sihlinzeka ngemininingwane ebalulekile kumabhizinisi ahlose ukuthuthukisa ikhwalithi yemikhiqizo yepulasitiki.

I-Melt Flow Index (MFI), ngezinye izikhathi ebizwa nge-melt flow rate, iyisilinganiso esibalulekile embonini yamaplastiki esichaza kalula lapho i-thermoplastic polymer igeleza ngaphansi kwezimo ezichaziwe. Ngokuyisisekelo, i-MFI ikala izinga lokukhipha ipulasitiki encibilikisiwe nge-die ejwayelekile ku-degree yobushushu ethile nomthwalo othile. Ivezwa ngamagremu ngemizuzu eyi-10 (g/10min), ihlinzeka ngesikhombisi esilula kodwa esibalulekile sokujiya kwe-polymer nokucubunguleka kwayo. Uma i-MFI iphakeme, i-viscosity iphansi, okusho ukuthi impahla igeleza kalula uma incibilikisiwe.

Izindlela zokulinganisa i-MFI zilandelwa izindinganiso ezibonwa umhlaba wonke, ezivame kakhulu i-ASTM D1238 ne-ISO 1133. Lezi zindinganiso zichaza inqubo kanye nemishini yokuhlola izici zokuqina kwamathermoplastics, ziqinisekisa ukungaguquguquki nokufanisana kwemiphumela emhlabeni wonke. Ngokusebenzisa isilinganisi se-MFI, abakhiqizi bangahlola ukuqina kokuncibilika ngaphansi kwezinga lokushisa elilawulwayo nomthwalo, bathole idatha ewusizo yokwazisa izinqubo zokukhiqiza.

I-Melt Flow Index ibaluleke kakhulu ekunqumeni ukufaneleka kwe-polymer ezinhlotsheni ezahlukahlukene zezinqubo zokukhiqiza njengokubumba ngomjovo, ukucindezela, nokubumba ngomoya. Isilinganiso esiqondile se-MFI sithinta ngqo ukusebenza kahle kokukhiqiza kanye nekhwalithi yomkhiqizo. Ngokwesibonelo, amaplastiki ane-MFI ephezulu ayathandwa kwimikhiqizo enezindonga ezincane edinga ukuhamba okusheshayo, kanti lawo ane-MFI ephansi afaneleka kangcono kwimikhiqizo edinga amandla omshini nokuqina.

Kwa-石家庄嘉源塑料制品有限公司, ukulawula izakhiwo zokuhamba kwe-melt kuvumela ukulungiswa okungcono kwezici zokucubungula, okuholela ubukhulu bomkhiqizo obuhambisanayo, ukuqedwa kwendawo okuthuthukisiwe, kanye nokunciphisa amaphutha. Ngaphezu kwalokho, i-MFI isebenza njengesibonelo esibalulekile ekukhetheni izinto, kusiza abakhiqizi ukuthi bakhethe izinga elifanele le-plastic resin elihambisana nezidingo zokugcina, kungaba ngezingxenye zezimoto, amadivayisi ezokwelapha, noma izimpahla zabathengi.

Ukukala kahle kokugeleza kwe-melt (melt flow) kufuna imishini ekhethekile eyaziwa ngokuthi yi-MFI tester. Le mishini ifudumeza isampula yepulasitiki ibe sezingeni lokushisa elikhethiweyo ngokwezindinganiso ezifana ne-ASTM D1238 noma i-ISO 1133, bese isebenzisa umthwalo othile ukuze iphume i-polymer encibilikile nge-capillary die. Ubungako be-extrudate eqoqwe ngemizuzu eyi-10 bunquma izinga lokugeleza kwe-melt. Ukunemba kule nqubo kubalulekile, njengoba ngisho nokuhlehlisa okuncane ekushiseni, emthwalweni, noma ekulungisweni kwesampula kungathinta imiphumela.

Izinto ezithinta ukufundwa kwe-MFI zihlanganisa isisindo samamolekyuli epolima, izithako, okuqukethwe umswakama, nomlando wokucubungula. Ukuqonda le mpendulo kusiza abakhiqizi ukuthi bachaze idatha ye-MFI kahle futhi balungise amafomula ngokufanele. Inkampani i-石家庄嘉源塑料制品有限公司 isebenzisa ukuhlolwa okuthuthukisiwe kwe-MFI ukugcina ukulawula kwekhwalithi okuqinile, iqinisekisa ukuthi imikhiqizo yabo yepulasitiki ihlangabezana nezimfuneko zamakhasimende namazinga omhlaba.

I-melt flow index isetshenziswa kabanzi ezimbonini ezahlukahlukene ukuqondisa ukukhethwa kwezinto kanye nezinqumo zokucubungula. Embonini yezimoto, amaplastiki anezindinganiso ezithile ze-MFI akhethwa ukuze alinganise amandla, ukuguquguquka, nokukhiqizwa kwezingxenye ezifana namadeshibhodi, ama-trims, nezindlu. Imboni yezokwelapha ithembele ezintweni ezinamazinga aqinile okuncibilika ukuze kukhiqizwe amadivayisi ayinkimbinkimbi futhi anembayo njengezinyozi nemibhobho, lapho ikhwalithi nokwethembeka kubaluleke kakhulu.

Imikhiqizo yabathengi kusukela kumafilimu okuhlanganisa izinto kuya ezintweni zasendlini nayo ithembele ezicini zokuncibilika zamaplastiki ukuze kunqunywe isivinini sokukhiqiza nokuqina komkhiqizo. Ngokuqonda idatha ye-MFI, izimboni zingalungisa izinqubo zazo ukuze zithuthukise ukusebenza, zinciphise ukuchitha, futhi zithuthukise imijikelezo yempilo yomkhiqizo.

Abakhiqizi, ukwazi kahle imininingwane ye-melt flow index (MFI) kunikeza izinzuzo eziningi. Kuthuthukisa ukuthuthukiswa komkhiqizo ngokuvumela ukubikezela nokulawula izindlela zokucubungula, kunciphisa ukuzama nokuhluleka ngesikhathi sokukhiqiza. Ngaphezu kwalokho, ulwazi olunzulu lwe-MFI lusiza ekuxazululeni izinkinga zokukhiqiza njengokugeleza okungahambisani noma ikhwalithi engalungile yephezulu, ngaleyo ndlela kuthuthukisa isivuno nokunciphisa izindleko.

Ngokombono wokuzinza, ukwenza kahle izici ze-melt flow kunomthelela ekusebenziseni okusebenzayo kwezinto zokwakha nokusetshenziswa kwamandla. I-Stonehouse Jia Yuan Plastic Products Co., Ltd. ihlanganisa leli qiniso ekukhiqizeni kwayo ukuze kuncishiswe umthelela emvelweni ngenkathi iletha imikhiqizo esebenza kahle kakhulu. Leli zwi lokusungula kanye nekhwalithi liqinisekisa isikhundla sabo njengabahlinzeki abathembekile embonini yokukhiqiza ipulasitiki.

Amabhizinisi afuna ukuthuthukisa ikhwalithi yemikhiqizo yawo yepulasitiki ngolwazi olungochwepheshe lokuqina kokuncibilika (melt flow) ayakhuthazwa ukuthi axhumane ne-石家庄嘉源塑料制品有限公司. Ithimba labo lihlinzeka ngemibukiso nemininingwane enemininingwane ngokuthi ukuqina kokuncibilika kuthinta kanjani ukusebenza komkhiqizo nokusebenza kahle kokukhiqiza. Ngeminye imininingwane, izicelo zamacaphuno, noma ukwesekwa kwezobuchwepheshe, sicela uvakashele i-Ukusekela ikhasi noma uhlole uhla lemikhiqizo esezingeni eliphezulu etholakalayo ku-Imikhiqizo ikhasi. Ukuze ufunde kabanzi mayelana nesizinda senkampani namandla ayo, vakashela i- Mayelana Nathi ikhasi.

Ngokuphetha, i-melt flow index iyiparameter ebalulekile embonini yokukhiqiza ipulasitiki, ethinta ikhwalithi yomkhiqizo, ukusebenza kahle kokukhiqiza, nokukhethwa kwezinto. Ngokuqonda nokulawula i-melt flow, izinkampani ezifana ne-石家庄嘉源塑料制品有限公司 ziqinisekisa ukuthi imikhiqizo yazo yepulasitiki ihlangabezana namazinga aphezulu futhi igcwalisa izidingo ezahlukahlukene zokusebenzisa. Ukuqamba okusha okuqhubekayo nokufunda kule ndawo kuhlala kubalulekile ukuze kuthuthukiswe ukusebenza nokusimama kwemikhiqizo yepulasitiki, ekugcineni kuzuze abakhiqizi nabathengi ngokufanayo.