Polymer Melt Viscosity Measurement

Ukulinganiswa kwe-viscosity yokuncibilika kwe-polymer kunquma inqubo yokukhipha kanye nokubumba. Ukuqapha i-viscosity ngesikhathi sangempela kubaluleke kakhulu kunokuqapha izinga lokushisa kanye nengcindezi.

Ovi-erviewof Ei-xtrisionMoi-ldingPrihhovisi

Ukubumba i-extrusion kuyinqubo yokukhiqiza ephumelelayo ezimbonini eziningi yokukhiqiza amaphrofayili aqhubekayo njengamapayipi, amafilimu, amashidi, njll. Ivumela ukukhiqizwa kwezimo eziyinkimbinkimbi zesigaba esibanzi ngekhwalithi efanayo ngenkathi iqinisekisa isivinini sokukhiqiza esiphezulu kanye nokusebenza kahle kwezinto. Intuthuko esobala efana nokwenza ngokuzenzakalela kwenqubo, ukuqapha ngesikhathi sangempela kanye nokuqapha inqubo yokuvuselela kabusha kuthuthukise ukunemba futhi kunciphisa umthelela wemvelo ngokunciphisa imfucuza.

I-Rough Ii-dea kweIsengezoi-rusikuvuliweMachine

Umshini wokukhipha uqukethe izingxenye ezilandelayo: i-hopper, isikulufu sokuphakela, izinto zokushisa kanye nephampu yegiya. Izinto zifakwa emshinini ku-hopper. Isikulufu sokuphakela esijikelezayo njalo, esiqhutshwa yinjini kanye ne-gearbox, sihambisa izinto eceleni komgqomo kanye ne-diye. Izinto zokushisa eceleni komgqomo zigcina amazinga okushisa alawulwayo ukuze zithambise futhi zincibilikise izinto ze-polymer. Ngemva kokuphuma ku-diye, izinto ezincibilikisiwe zingena esikhumbeni esinembobo eyodwa noma ngaphezulu, lapho ziphola khona futhi ziqine zibe yisimo esifunwayo. Kwezinye izinhlelo, iphampu yegiya ibekwa phakathi komgqomo kanye ne-diye ukuqinisekisa ukucindezela okuhambisanayo ezintweni eziphumayo.

Ukukhipha i-Polymer kanye nokubumba umjovo

Amaphuzu Abalulekile Okulinganisa Ukuqina Komshini Wokukhipha

Indawo Yokuphuma/Yokuphakelayo ye-Hopper: Kukala ukuthamba kokuqala kokuncibilika njengoba i-polymer iqala ukuthamba.

Indawo Yokuncibilika (I-Mid-Barrel): Ithwebula ukushintshela esimweni esincibilikisiwe ngokuphelele.

Indawo Yokulinganisa(Ngaphambi Kokuphampa Kwegiya Noma Ukufa): Kukala ukulinganiswa kwe-polymer melt viscosity ngaphansi kwamazinga okusika okusebenza.

Umnyango Wokungena Efa: Ihlinzeka ngedatha ye-viscosity yokuncibilika ngesikhathi sangempela endaweni yokukhipha.

Ukuqonda Ukuncibilika Kwe-Polymer Nokuqina

Kuyini ukuncibilika kwe-polymer?

Kuyi-polymer eshisiwe ibe sesimweni esincibilikisiwe, ekhombisa izakhiwo zokugeleza ezivumela ukwakheka ngokusebenzisa i-extrusion noma i-molding.ukuncibilikisa i-viscosity yama-polymer—ukumelana nokugeleza—kuncike esisindweni sama-molecule, izinga lokushisa, izinga lokugunda, kanye nezithasiselo, okuthonya amandla nokuphela komkhiqizo wokugcina.inqubo yokukhipha i-polymer, lapho i-polymer encibilikisiwe ikhishwa khona ngedayi, kanye nasekubumbeni komjovo, lapho igcwalisa khona isikhunta ngaphansi kwengcindezi, igcina ifaneleka kahleukuncibilikisa ukujiyakubalulekile. Kwendabukoukulinganiswa kwe-polymer melt viscosityizindlela, njenge-rheometry ye-capillary engaxhunyiwe ku-inthanethi, zivame ukulibaziseka ngenxa yokubambezeleka, okubangela ukushintshela ku-emugqenii-viscometer yama-polymerukuze uthole ulwazi lwesikhathi sangempela.

Izinselele Ekukhishweni Kwe-Polymer Nokulawulwa Kwenqubo

Iinqubo yokukhipha i-polymerkanye nokubumba ngomjovo kubhekene nezingqinamba ezinkulu ekugcineni ukuhambisanaukuncibilikisa ukujiyaUkuguquguquka okubangelwa ukushintshashintsha kokushisa kanye namazinga okusika ashintshashintshayo kungaholela ekungalinganiniukuncibilikisa i-viscosity yama-polymer, okubangela ukukhubazeka okufana nokungahambi kahle kobuso noma izikhala kumaphrofayili akhishwe. Imigqa emikhulu yokukhishwa ilwa nokulinganaukulinganiswa kwe-polymer melt viscositykulo lonke ukugeleza, kugcinwa ukuhambisana nokulawula inqubo. Ekubunjweni komjovo ngesivinini esikhulu, ukulungiswa ngesandla kwehluleka ukuhambisana nezikhathi zomjikelezo ezisheshayo, okubeka engcupheni i-warpage noma ukugcwalisa okungaphelele. Lezi zinselele zigcizelela isidingo se-advancedi-viscometer ye-polymerizinhlelo, njenge-i-viscometer ye-polymer ezenzakalelayo, ukuhlinzeka ngemininingwane yesikhathi sangempela nokunqoba ukulinganiselwa kwezindlela zendabuko.

Kungani Kubalulekile Ukuqapha Ukuncibilika Kwe-Viscosity

Ukulinganiswa kwe-melt viscosity kubaluleke kakhulu enqubweni yokukhipha i-polymer kanye nokubumba umjovo ngezizathu eziningana. Ekukhipheni umjovo, i-melt viscosity eqhubekayo iqinisekisa ukugcwaliswa okufanayo kokufa futhi ivimbela amaphutha afana nokungahambi kahle kwendawo noma ukuvuvukala kokufa. Ekubumbeni umjovo, kuthinta ukugcwaliswa kwesikhunta, ikhwalithi yengxenye, kanye nesikhathi somjikelezo, lapho ukuhlukahluka kungaholela ekuqhekekeni noma ekugcwalisweni okungaphelele. Ukuqapha kwesikhathi sangempela kuvumela opharetha ukuthi balungise izinga lokushisa, ingcindezi, noma ukwakheka kwezinto ngokushesha, okwenza ngcono ukusetshenziswa kwamandla futhi kuncishiswe imfucuza—izinto ezibalulekile njengoba imithetho yekhabhoni iqina ngo-2025.

Ubunzima bokulinganiswa kwe-polymer melt viscosity buvela esimweni esingeyona i-Newtonian se-polymer melts, lapho i-viscosity ihlukahluka khona ngokwezinga lokushefa kanye nomlando wokushisa. Izinhlelo ze-inline polymer-melt viscometer systems zibhekana nalokhu ngokunikeza idatha eqhubekayo, okuvumela ukulawula inqubo okungenakufaniswa nezindlela ezingaxhunyiwe ku-inthanethi.

Ubuchwepheshe bukaLonnmeter ekuqapheni ukuminyana kwe-Melt

Ngineminyaka engaphezu kweshumi yesipiliyoni,I-Lonnmeter, oholayoumhlinzeki we-viscometer ye-polymer, isizibonakalise njengephayona kuukuqapha ukujiyaUbuchwepheshe babo buhlanganisa imigqa yokukhipha enomfutho ophezulu, eshisa kakhulu kanye nezindawo zokubumba umjovo, okubhekana nezidingo zama-polymer ahlukahlukene njenge-polyethylene, i-polypropylene, kanye ne-PET.

Izixazululo Zomkhiqizo

I-Lonnmeter inikeza ubuchwepheshe obusezingeni eliphezului-viscometer yokuncibilikisa i-polymerizixazululo ezenzelweukuqapha ukuncibilika kwe-viscosity. II-Viscometer Esemgqeniyenzelwe ukufakwa okuqondile noma okulinganayo emishinini yokukhipha, okulinganisaukuncibilikisa ukujiyakufika ku-100,000 cP·s kanye namazinga okushisa afika ku-300°C, angathinteki ukushintshashintsha kokugeleza.

Ukwenza ngokwezifiso kuyisici esibalulekile seminikelo yeLonnmeter, ngezinketho zokuxhumeka okunezintambo noma okune-flange kanye nokukhishwa kwedatha nge-4-20mA noma i-RS485, okuhlanganiswa kalula nezinhlelo zokwenza izinto ngokuzenzakalela. Ekukhipheni, ukusethwa okuqondile kuqinisekisa ukuphazamiseka okuncane kokugeleza.

Izinzuzo ze-Lonnmeter's Melt Viscosity Solutions

Ukuqinisekisa ikhwalithi:Isikhathi sangempelaukulinganiswa kwe-polymer melt viscositykuqinisekisa ukuthi izingxenye eziphumayo azinasici futhi azinazo iziphambeko.
Ukusebenza Kahle Kwezindleko:Ukunciphisa imfucuza kanye nokugcinwa kwempahla kunciphisa izindleko zokusebenza.
Ukonga Amandla:Ukulungiswa okunembile kuthuthukisa ukusetshenziswa kwamandla.
Ukuzivumelanisa Nezimo Kwenqubo:Ukuhambisana nama-polymer ahlukahlukene kusekela izidingo zokukhiqiza ezahlukahlukene.

Ukuphepha Okuthuthukisiwe:Ukutholwa kusenesikhathi kokungalingani kwe-viscosity kuvimbela ukucindezeleka kwemishini.

Imibuzo Evame Ukubuzwa

Kungani i-melt viscosity ibaluleke kakhulu kunokushisa noma ingcindezi?

I-melt viscosity ithinta ngqo ukugeleza kwe-melt, i-die fill, kanye nokuvumelana komkhiqizo, okuvame ukwedlula ithonya lokushisa noma ingcindezi. Ukulinganiswa okufanele kwe-polymer melt viscosity kuvimbela amaphutha afana ne-warpage noma i-die swell, okwenza kube yinto ebalulekile ekulawuleni inqubo.

I-Lonnmeter iqinisekisa kanjani ukuhlanganiswa kwedatha?

I-viscometer ye-polymer ezenzakalelayo ihlangana ngezinqubo ze-4-20mA noma ze-RS485, inikeza idatha yesikhathi sangempela ezinhlelweni zokulawula. Isazi-mlando sayo esingaphakathi, esitholakala ngesofthiwe, sinikeza ukuqonda komlando, sidlula imikhawulo ye-polymer ye-viscometer yendabuko.

Yiziphi izinto ezithonya i-viscosity yokuncibilika kwama-polymer?

Ukuqina kokuncibilika kwama-polymer kuthonywa yisisindo sama-molecule, izinga lokushisa, izinga lokucheba, kanye nokuba khona kwezithasiselo noma izigcwalisi. Isisindo sama-molecule esiphezulu kanye namazinga okushisa aphansi ngokuvamile kwandisa ukuqina, okuthinta inqubo yokukhipha i-polymer.

Ukuqapha i-melt viscosity kuyisisekelo senqubo yokukhipha i-polymer kanye nokubumba nge-injection, okuqinisekisa ikhwalithi nokusebenza kahle. Ngobuchwepheshe obuqinisekisiwe be-Lonnmeter kanye ne-viscometer ethuthukisiwe yama-polymer, abakhiqizi banganqoba izinselele ekulawuleni inqubo futhi bathuthukise ukukhiqizwa. Cela isilinganiso namuhla kulo mhlinzeki we-viscometer we-polymer othembekile!

Thatha Isinyathelo Manje

Isikhathi sokuthunyelwe: Julayi-31-2025