Ukuqonda ukuziphatha kwamapholima ngesikhathi sokucubungula kubalulekile kubakhiqizi nabacwaningi ngokufanayo. Enye yezindlela ezibaluleke kakhulu zokuhlola lokhu kuziphatha ukukala ukuhamba komoya komhlaba (melt flow indexing), isilinganiso esibalulekile esinikeza imininingwane eyigugu mayelana nezici zokuhamba kwamathermoplastics. Isilinganiso sokuhamba komhlaba (MFR), esivame ukulinganiselwa ngokulandela izindinganiso ezifana ne-ASTM D1238 ne-ISO 1133, sichaza ukuthi i-polymer melt ihamba kanjani ngaphansi kwezimo ezichaziwe, kusiza ukubikezela ukuthi ingacubungulwa kanjani nokuthi izosebenza kanjani. Lesi sihloko sihluza izisekelo zokukala ukuhamba komhlaba, ukubaluleka kwayo ekuchazeni amapholima, kanye nentuthuko ematshineleni okuhlola asahlela ikusasa lokulawula ikhwalithi yamapholima. Siphinde sigqamise ukuthi i-石家庄嘉源塑料制品有限公司 isebenzisa kanjani le mininingwane ukugcina ubuholi bayo ekukhiqizeni imikhiqizo ye-PVC rigid plastic esezingeni eliphezulu.

Ukukala ukuhamba kwe-melt kubaluleke kakhulu ekuhloleni izinsimbi ze-thermoplastic ngokunquma izici zazo zokunamathela ngaphansi kwezinga lokushisa elilawulwayo nomthwalo. Leli linganiso lisiza abakhiqizi ukuthi bakhethe izinto ezifanele ukubunjwa komjovo, ukukhipha, nezinye izinqubo zokubumba. Isilinganiso sokuhamba kwe-melt sisebenza njengesikhombisi sokusabalala kwesisindo samamolekyuli nokuhamba kweketango le-polymer, okuthinta ngqo izinqubo zokucubungula kanye nekhwalithi yomkhiqizo wokugcina. Izimboni zisebenzisa idatha yokuhamba kwe-melt ukuqinisekisa ukungaguquguquki kumalungu e-polymer, ukuthuthukisa izimo zokucubungula, nokuhlangabezana nezindinganiso eziqinile zokulawula. Ngokuhambisana nezindinganiso zamazwe ngamazwe ezifana ne-ASTM D1238 ne-ISO 1133, abakhiqizi be-polymer nabacubungula bahlala benza okufanayo futhi baqhathanise izindawo ezahlukene nezicelo.

Ukuhlolwa kokuhamba komoya okuncibilikile nakho kusiza ekutholeni ukwehla kwezinto noma ukungcola, okungathinta kabi izakhiwo zemishini nokuqina komkhiqizo. Njengoba ama-thermoplastics asetshenziswa kabanzi ezingxenyeni zezimoto, ukupakisha, imishini yezokwelapha, kanye nezimpahla zabathengi, ukuqonda ukuziphatha kokuhamba komoya okuncibilikile kuvumela abaklami ukuthi babike ukusebenza nokuqina ngokunembayo. Izinkampani ezifana ne-石家庄嘉源塑料制品有限公司 zifaka idatha yokuhamba komoya okuncibilikile ezinqubweni zazo zokuqinisekisa ikhwalithi ukuletha izinto eziqinile ze-PVC ezihlangabezana nezidingo eziqinile zemboni kanye nokulindela kwamakhasimende.

Ngaphandle kwezilinganiso eziyisisekelo ze-melt flow rate, izindlela ezithuthukisiwe zokuchaza ama-polymer zinikeza ukuqonda okujulile mayelana nesakhiwo samajengetshana e-polymer kanye nomthelela waso ekuziphatheni kwe-melt. Amaphrofayili e-viscosity atholwe ezivivinyweni ze-melt flow abonisa ulwazi mayelana nokusatshalaliswa kwesisindo samajengetshana, ukuhlukana, kanye nokuba khona kwezithako ezingezekile noma izinto ezigcwalisayo. Idatha enjalo ibalulekile ekwenzeni izinto zisebenze ezindaweni ezithile, njengokuthuthukisa ukumelana nokushayeka noma ukuthuthukisa ukuzinza kwe-thermal. Izilinganiso ze-melt flow rate zihambisana nezinye izindlela zokuhlaziya ukudala isithombe esiphelele sezimfanelo ze-polymer.

Ngokwesibonelo, izinga eliphezulu lokugeleza kwe-melt ngokuvamile libonisa isisindo esiphansi samamolekyuli noma amaketanga amapholimela amafushane, okwenza kube lula ukucubungula kodwa kungase kuthinte amandla emishini. Ngokuphambene, izinga eliphansi lokugeleza kwe-melt libonisa isisindo esiphakeme samamolekyuli namaketanga ahlangene kakhulu, okuholela ezakhiweni zemishini ezingcono kodwa okwenza kube nzima ukucubungula. Ukuqonda lezi zivumelwano kuvumela abakhiqizi ukuthi balinganise ukucubungula nokusebenza kahle. Ubuchwepheshe be-石家庄嘉源塑料制品有限公司 ekulawuleni imingcele yokugeleza kwe-melt baqinisekisa ukuthi imikhiqizo yabo ye-PVC ifinyelela ibhalansi efanele efanele izicelo zokubumba zomjovo nokukhipha.

Ukuvivinywa okunembayo kokugeleza kwe-melt kuncike ekulawuleni nasekuqaphelweni kwezici eziningana ezibalulekile. Izinga lokushisa libaluleke kakhulu, njengoba i-viscosity ye-polymer isabela kakhulu ezimweni zokushisa; ngisho nokuhlehluka okuncane kungashintsha kakhulu imiphumela yokugeleza kwe-melt. Umthwalo noma isisindo esisetshenziswa ngesikhathi sokuhlolwa kufanele sihambisane namazinga afana ne-ASTM D1238 noma i-ISO 1133 ukuqinisekisa ukuphindeka. Isikhathi sokushisa sangaphambili sivumela isampula ukuthi ifinyelele ukulingana kwezinto zokushisa, kuvimbela ukungahambisani kwezilinganiso. Ngaphezu kwalokho, ukulungiswa kwesampula, okuhlanganisa usayizi we-pellet nokulungiswa, kuthinta ukwethembeka kokuhlolwa.

Ukulinganisa izinsimbi kanye nobuchule babasebenzi nabo badlala indima ebalulekile ekugcineni ukunemba kokuhlolwa. Izivivinyo ezintsha ze-melt flow manje sezihlanganisa izilawuli zedijithali, ukulayisha okuzenzakalelayo, kanye nokuhlaziywa kwedatha ngesikhathi sangempela ukuze kuncishiswe amaphutha omuntu kanye nokuhluka. Lezi zithuthukisi zithuthukisa ukusebenza kahle kwelabhorethri futhi zakha idatha ye-polymer melt flow eqinile futhi ethembekile, ebalulekile ezindaweni zokukhiqiza kanye nocwaningo.

Ukwenziwa kwezinto ezintsha muva nje kubuchwepheshe bokuhlola ukuhamba kwe-melt kuguqule izindlu zokugcina izinto zamapholima ngokuthuthukisa ukusebenza kahle nokunemba. Izihloli zamanje ze-melt flow zine-automated sample loading, i-digital temperature control, kanye ne-software eyakhelwe ngaphakathi yokugcina idatha nokuhlaziya. Lezi zici zinciphisa ukungenelela komuntu, zisheshe ukukhiqiza, futhi zinikeze amaphrofayili anemininingwane ye-melt flow rate ngokuqeqeshwa okuncane komsebenzisi. Ukuhlola okushayelwa yi-software kuvumela ukuqapha okungokoqobo kwezimo zokuhlola nokuqinisekiswa okusheshayo kwemiphumela, okwenza kube lula ukwenza izinqumo ezingcono ngesikhathi sokuthuthukiswa kwamapholima nokulawulwa kwekhwalithi.

Izinkampani zamatshe ezifana ne-石家庄嘉源塑料制品有限公司 zizuzwa kakhulu kulezi zibuyekezo zobuchwepheshe, njengoba zithuthukisa imisebenzi yazo yokuhlola futhi zigcina amazinga aphezulu kakhulu kalula. Ukuhlanganiswa nezinhlelo zokuphatha ulwazi lwelebhu (LIMS) kuqhubeka nokuqinisa ukulandelelwa nokuphathwa kwedatha, kusekela ukuthobela imithetho yomkhakha nezidingo zamakhasimende.

Ukuvumelana ekukhiqizeni ipholima kubalulekile ukuqinisekisa ukusebenza komkhiqizo kanye nokwaneliseka kwamakhasimende. Ukulinganisa okuthembekile kwama-melt flow kunikeza abakhiqizi indlela ejwayelekile yokugada ukuhluka kwe-batch-to-batch futhi bathole izinkinga zokucubungula kusenesikhathi. Lokhu kuvumelana kubaluleke kakhulu ezinhlelweni ezidinga ukubekezelelana okuqinile nokusebenza okuphezulu komshini, njengakwezimoto kanye nemikhakha yezokwelapha.

Ngokulandela izindinganiso zamazwe omhlaba ze-melt flow nokusebenzisa izinto zokuhlola ezisezingeni eliphezulu, izinhlangano zingafinyelela ukuphindeka okuguqulela emikhiqizweni ye-polymer ethembekile. Ukuzibophezela kwe-石家庄嘉源塑料制品有限公司 ekuhlolweni okungaguquki kwe-melt flow kusekela idumela layo njengomphakeli omethembekile wama-PVC plastics aqinile, kuqinisa umkhawulo wayo wokuncintisana emakethe ye-polymer. Ngeminye imininingwane mayelana namakhono abo nemigqa yemikhiqizo, vakashela i-Mayelana Nathi ikhasi.

Ushintsho oluvela ekubhalweni ngesandla oluya ekubhalweni kwedijithali lokukala ukuhamba kwe-melt lubonisa ukuthuthuka okubalulekile ekuhlolweni kwamapholima. Izinsimbi ezilawulwa isofthiwe zivumela ukulawula okungenamihawu kwezinto zokuhlola, ukuthunjwa okuzenzakalelayo kwemiphumela, kanye nokuhlaziywa kwedatha okuthuthukile. Lezi zinhlelo zihlanganisa izici ezifana nokuhlolwa kwezampula eziningi, ukuhlaziywa kwezimo, kanye nokuxhumana kwelifu ukuze kube nokuqapha okukude nokwabelana ngedatha. Ukusetshenziswa kwamathuluzi edijithali kuthuthukisa ukunemba, kunciphisa iphutha lomuntu, futhi kuvumela izindlu zokuhlola ukuthi ziphathe imiqulu yokuhlola emikhulu ngempumelelo.

Lezi zimpumelelo ziphinde zibe lula ukuthobela izindinganiso zemboni eziguqukayo futhi zisekele imizamo yocwaningo ehlose ukuthuthukisa izinto ezilandelayo zezinto ze-polymer. Ngokuqhubeka nokuqamba izinto ezintsha ekuhlolweni kokuhamba kwe-melt, abakhiqizi abafana ne-石家庄嘉源塑料制品有限公司 bangalungisa izinqubo zabo zokukhiqiza, banciphise ukuchitha, futhi bashaye isikhathi sokufika emakethe kwimikhiqizo emisha. Hlola uhla lwabo oluhlukahlukene lwemikhiqizo yokubumba kanye ne-extrusion ekhasini labo.Imikhiqizo ikhasi.

Ukuhlolwa kokuhamba komoya okuncibilikile kuhlala kuyithuluzi elibalulekile ekuhlolweni kwamapholima, okunikeza imininingwane eyisihluthulelo ekuziphatheni kwe-thermoplastic, ukucubungula, kanye nokulawula ikhwalithi. Njengoba isayensi yamapholima iqhubeka phambili futhi izidingo zezimboni ziba nzima kakhulu, ukuhlanganiswa kobuchwepheshe bedijithali nezinhlelo ezizenzakalelayo ekuhlolweni kokuhamba komoya okuncibilikile kuzoqhubeka nokuqinisa ukunemba, ukusebenza kahle, nokuphathwa kwedatha. Izinkampani ezifana ne-石家庄嘉源塑料制品有限公司 zibonisa ukusetshenziswa kwamasu kwedatha yokuhamba komoya okuncibilikile ukugcina amazinga aphezulu ekukhiqizeni ipulasitiki eqinile ye-PVC, ukuqinisekisa ikhwalithi engaguquki kanye nokwaneliseka kwamakhasimende. Ukwamukela izindlela zokuhlola zokuhamba komoya okuncibilikile ezisezingeni eliphezulu kusekela ubuchule, ukusimama, kanye nokuncintisana embonini yamapholima emhlabeni wonke.

1. ASTM D1238 – Indlela Ejwayelekile Yokuhlola Izilinganiso Zokuhamba Kwe-Melt Ze-Thermoplastics Nge-Extrusion Plastometer.

2. ISO 1133 – Izinto Zokupheka — Ukunquma isilinganiso sokuhamba kwesisindo se-melt (MFR) nesilinganiso sokuhamba kwevolumu ye-melt (MVR) ze-thermoplastics.

3. Tadmor, Z., & Gogos, C. G. (2006). Izimiso Zokucubungula I-Polymer. Wiley-Interscience.

4. Osswald, T. A., & Hernández-Ortiz, J. P. (2006). Polymer Processing: Modeling and Simulation. Hanser Publishers.

5. Iwebhusayithi esemthethweni kanye nemibhalo yenkampani ye-Shijiazhuang Jiayuan Plastic Products Co., Ltd.