Indlela yobunzima obunye (indlela yokulayisha ubunzima rhoqo) yenye yeendlela zokuvavanya ezisetyenziswa kakhulu kwizixhobo zesantya sokuhamba kwamanzi anyibilikayo (i-MFR)–YYP-400E;
Eyona nto iphambili kule ndlela kukufaka umthwalo ongaguqukiyo kwiplastiki enyibilikisiweyo usebenzisa ubunzima obumiselweyo, uze ulinganise ubunzima bezinto ezinyibilikisiweyo ezihamba kwi-standard die kubushushu obuthile kunye nexesha elithile ukuze ubale isantya sokuhamba. Iingenelo zayo zibonakala kakhulu kwiinkalo ezininzi ezifana nokusebenza, ukuchaneka, ukusetyenziswa, kunye neendleko. Iinkcukacha zezi zilandelayo:
1. Inkqubo yokusebenza ilula kwaye icacile, icacile kwaye icacile. Indlela yobunzima obunye ifuna kuphela uqwalaselo lobunzima obumiselweyo kwaye ayifuni zixhobo zokutshintsha umthwalo ezintsonkothileyo. Ngexesha lovavanyo, fudumeza nje isampuli ukuze inyibilike, ulayishe ubunzima obumiselweyo, uyibeke ixesha, kwaye uqokelele izinto ezinyibilikisiweyo ezihambayo. Amanyathelo ambalwa kwaye ukubekwa emgangathweni kuphezulu, kuneemfuno zezakhono eziphantsi kubaqhubi, kwaye inokulungiswa ngokukhawuleza kwaye iphindwe. Xa kuthelekiswa nendlela yomthwalo oguquguqukayo (njengovavanyo lobunzima obuninzi lwesantya sokuhamba komthamo onyibilikisiweyo i-MVR), isusa isidingo sokutshintsha ubunzima kunye nokulinganisa imithwalo, kunciphisa kakhulu ixesha lokulungiselela uvavanyo olunye.
2. Idatha yovavanyo izinzile kakhulu kwaye impazamo iyalawuleka. Phantsi komthwalo oqhubekayo, uxinzelelo lokucheba kwizinto ezinyibilikisiweyo luzinzile, izinga lokuhamba liyafana, kwaye ukuguquguquka kobunzima bezinto ezinyibilikisiweyo eziqokelelweyo kuncinci, okubangela ukuphindaphindwa okuhle kwexabiso le-MFR. Ukuchaneka komgangatho wobunzima kunokulawulwa ngokungqongqo ngokulinganisa (ngokuchaneka kwe-±0.1g), kuthintelwe iimpazamo ezongezelelweyo ezibangelwa kukudibana kobunzima kunye nokudluliselwa koomatshini kwindlela yomthwalo oguquguqukayo. Oku kulungele ngokukodwa uvavanyo oluchanekileyo lweplastiki ehamba kancinci (njenge-PC, i-PA) okanye iplastiki ehamba kakhulu (njenge-PE, i-PP).
3. Ulwakhiwo lwezixhobo lwenziwe lula, iindleko ziphantsi, kwaye ukugcinwa kulula. Isixhobo se-MFR esisebenzisa indlela yobunzima obunye asifuni inkqubo yokulungisa umthwalo eyinkimbinkimbi (njengokulayisha ngombane, ukugcina ubunzima), kwaye isixhobo sincinci ngobukhulu, sinezixhobo ezimbalwa, nto leyo ebangela ukuba iindleko zokuthenga zibe phantsi ngama-20% ukuya kuma-40% xa kuthelekiswa nezixhobo zohlobo olunezisindo ezininzi. Ukugcinwa kwemihla ngemihla kufuna kuphela ukulinganisa ubunzima beesisindo, ukucoca idayisi kunye nebhereli, kwaye akukho mfuneko yokugcinwa kwenkqubo yokudlulisa okanye yokulawula. Izinga lokusilela liphantsi, umjikelo wokugcinwa mde, kwaye ufanelekile ukuhlolwa komgangatho rhoqo kumashishini amancinci naphakathi okanye kwiilebhu.
4. Ihambelana neemfuno ezisemgangathweni kwaye ifanelekile kwiimeko zokuhlolwa komgangatho eziqhelekileyo. Indlela yobunzima obunye ihlangabezana ngokupheleleyo neemfuno zemigangatho eqhelekileyo efana ne-ISO 1133-1 kunye ne-ASTM D1238, kwaye yindlela eqhelekileyo yokuhlolwa okungenayo kwezinto eziluhlaza zeplastiki kunye nolawulo lomgangatho wenkqubo yemveliso. Ukuhlolwa kwefektri uninzi lweeplastiki ngokubanzi (ezifana ne-PE, i-PP, i-PS), kufuneka umthwalo omiselweyo kuphela (ofana ne-2.16kg, i-5kg) ukuze kugqitywe uvavanyo, ngaphandle kwesidingo sokulungiswa kweeparameter ezongezelelweyo, kwaye ifanelekile kwiimfuno zokuhlolwa komgangatho omkhulu kwimizi-mveliso.
5. Iziphumo zedatha zicacile kwaye zenzelwe uhlalutyo oluthelekisayo. Iziphumo zovavanyo ziboniswa ngqo kwiiyunithi ze-“g/10min”, kwaye ubungakanani bamanani bubonisa ngokuthe ngqo ukutyibilika kwezinto ezinyibilikisiweyo, okwenza kube lula ukwenza uthelekiso oluthe tye phakathi kweebhetshi ezahlukeneyo kunye nabavelisi abahlukeneyo bezinto ezikrwada. Umzekelo: kwi-PP yophawu olufanayo, ukuba i-MFR yebhetshi A yi-2.5g/10min kwaye eyebhetshi B yi-2.3g/10min, kunokugwetywa ngokuthe ngqo ukuba ibhetshi A inokuguquguquka okungcono, ngaphandle kwesidingo sokuguqulwa okuntsonkothileyo okanye ukucutshungulwa kwedatha.
Kufuneka kuqatshelwe ukuba umda wendlela enye yomgangatho ukwimeko yokungakwazi kwayo ukulinganisa ukuxhomekeka kwesantya sokucheba kwencibiliko. Ukuba umntu ufuna ukufunda iipropati ze-rheological zeplastiki phantsi kwemithwalo eyahlukeneyo, kufuneka kusetyenziswe isixhobo se-MVR sohlobo lwemithwalo emininzi okanye i-capillary rheometer ngokudibeneyo.
Ixesha leposi: Disemba-13-2025