Indlela yesisindo esisodwa (indlela yokulayisha isisindo njalo) ingenye yezindlela zokuhlola ezisetshenziswa kakhulu zezinsimbi zokugeleza kokuncibilika (i-MFR) –YYP-400E;
Ingqikithi yale ndlela ukufaka umthwalo ongaguquki epulasitikini elincibilikisiwe usebenzisa isisindo esiqinile, bese ulinganisa isisindo sezinto ezincibilikisiwe ezigeleza nge-die ejwayelekile ekushiseni okunqunyiwe nesikhathi sokubala izinga lokugeleza. Izinzuzo zayo zibonakala kakhulu ezicini eziningi ezifana nokusebenza, ukunemba, ukusebenza, kanye nezindleko. Imininingwane imi kanje:
1. Inqubo yokusebenza ilula futhi iqondile, inokuqonda okuqinile. Indlela yesisindo esisodwa idinga kuphela ukucushwa kwezisindo ezinobukhulu obungaguquki futhi ayidingi amadivayisi ayinkimbinkimbi okushintsha umthwalo. Ngesikhathi sokuhlolwa, mane nje ushise isampula ukuze incibilike, ulayishe isisindo esinqunyiwe, usibeke isikhathi, bese uqoqa izinto ezincibilikisiwe ezigelezayo. Izinyathelo zimbalwa futhi ukulinganisa kuphezulu, kunezidingo zamakhono aphansi kubasebenzi, futhi kungaqondiswa ngokushesha futhi kuphindwe. Uma kuqhathaniswa nendlela yomthwalo oguquguqukayo (njengokuhlolwa kwesisindo esiningi kwesilinganiso sokugeleza kwevolumu yokuncibilika kwe-MVR), isusa isidingo sokushintsha izisindo nokulinganisa imithwalo, kunciphisa kakhulu isikhathi sokulungiselela ukuhlolwa okukodwa.
2. Idatha yokuhlola izinzile kakhulu futhi iphutha lingalawuleka. Ngaphansi komthwalo oqhubekayo, ukucindezeleka kokucheba ezintweni ezincibilikisiwe kuzinzile, izinga lokugeleza liyafana, futhi ukuguquguquka kwesisindo sezinto ezincibilikisiwe eziqoqiwe kuncane, okuholela ekuphindaphindweni okuhle kwenani le-MFR. Ukunemba kwekhwalithi yesisindo kungalawulwa ngokuqinile ngokulinganisa (ngokunemba okungu-±0.1g), kugwema amaphutha engeziwe abangelwa ukuhlanganiswa kwesisindo kanye nokudluliselwa komshini endleleni yomthwalo oguquguqukayo. Lokhu kufaneleka kakhulu ekuhlolweni okunembile kwepulasitiki egeleza kancane (njenge-PC, i-PA) noma ipulasitiki egeleza kakhulu (njenge-PE, i-PP).
3. Isakhiwo semishini senziwe lula, izindleko ziphansi, futhi ukulungiswa kulula. Ithuluzi le-MFR elisebenzisa indlela yesisindo esisodwa alidingi uhlelo oluyinkimbinkimbi lokulungisa umthwalo (njengokulayisha kagesi, ukugcina isisindo), futhi imishini incane ngobukhulu, inezingxenye ezimbalwa, okuholela ezindleko zokuthenga eziphansi ngo-20% kuya ku-40% uma kuqhathaniswa nezinsimbi zohlobo olunesisindo esiningi. Ukulungiswa kwansuku zonke kudinga kuphela ukulinganisa isisindo sesisindo, ukuhlanza idayisi kanye nomgqomo, futhi akudingeki ukulungiswa kohlelo lokudlulisa noma lokulawula. Izinga lokwehluleka liphansi, umjikelezo wokulungisa mude, futhi ufanelekile ukuhlolwa kwekhwalithi okuvamile emabhizinisini amancane naphakathi noma emalabhorethri.
4. Ihambisana nezidingo ezijwayelekile futhi ifanele izimo ezijwayelekile zokuhlolwa kwekhwalithi. Indlela yesisindo esisodwa ihlangabezana ngokugcwele nezidingo zezindinganiso ezijwayelekile njenge-ISO 1133-1 kanye ne-ASTM D1238, futhi iyindlela evamile yokuhlola okungenayo kwezinto zokusetshenziswa zepulasitiki kanye nokulawulwa kwekhwalithi yenqubo yokukhiqiza. Ukuhlolwa kwefektri kwamapulasitiki amaningi ajwayelekile (njenge-PE, i-PP, i-PS), umthwalo ojwayelekile ohleliwe kuphela (njenge-2.16kg, 5kg) odingekayo ukuze kuqedwe ukuhlolwa, ngaphandle kwesidingo sokulungiswa okwengeziwe kwamapharamitha, futhi ifanele izidingo zokuhlolwa kwekhwalithi enkulu yezimboni.
5. Imiphumela yedatha inembile futhi ngenhloso yokuhlaziya okuqhathanisayo. Imiphumela yokuhlolwa yethulwa ngqo kumayunithi “g/10min”, futhi usayizi wezinombolo ubonisa ngqo ukugeleza kwezinto ezincibilikisiwe, okwenza kube lula ukwenza ukuqhathanisa okuvundlile phakathi kwamaqoqo ahlukene nabakhiqizi abahlukene bezinto zokusetshenziswa. Isibonelo: zezinto zokusetshenziswa ze-PP zomkhiqizo ofanayo, uma i-MFR yeqoqo A ingu-2.5g/10min kanti eyeqoqo B ingu-2.3g/10min, kungahlulelwa ngqo ukuthi iqoqo A linokuguquguquka okungcono, ngaphandle kwesidingo sokuguqulwa okuyinkimbinkimbi noma ukucutshungulwa kwedatha.
Kufanele kuqashelwe ukuthi umkhawulo wendlela eyodwa yekhwalithi usekungakwazi kwayo ukukala ukuxhomekeka kwesilinganiso sokunqunywa kokuncibilika. Uma umuntu edinga ukufunda izakhiwo ze-rheological zamapulasitiki ngaphansi kwemithwalo ehlukene, ithuluzi le-MVR lohlobo lwemithwalo eminingi noma i-capillary rheometer kufanele lisetshenziswe ndawonye.
Isikhathi sokuthunyelwe: Disemba 13-2025