I-XNR-400C Melt Flow Rate Tester

Izinto zokuhlola: Isetshenziselwa ukunquma izinga lokuncibilika kwe-polyethylene, i-polypropylene, i-polyoxymethylene, i-ABS resin, i-polycarbonate, i-nylon fluoroplastics namanye ama-polymers emazingeni okushisa aphezulu.

I-XNR-400C melt flow rate tester iyithuluzi lokulinganisa izakhiwo zokugeleza zama-polymers epulasitiki emazingeni okushisa aphezulu ngokuya ngendlela yokuhlola ye-GB3682-2018. Isetshenziselwa i-polyethylene, i-polypropylene, i-polyoxymethylene, i-ABS resin, i-polycarbonate, ne-nylon fluorine. Isilinganiso sokuncibilika kwezinga lokugeleza kwama-polymers njengamapulasitiki emazingeni okushisa aphezulu. Ilungele ukukhiqizwa nokucwaninga emafektri, amabhizinisi kanye namayunithi ocwaningo lwesayensi.

Izici Eziyinhloko:
1. Ingxenye ye-Extrusion:
Ububanzi bembobo yokukhipha: Φ2.095±0.005 mm
Ubude bembobo yokukhipha: 8.000±0.005 mm
Ububanzi besilinda sokushaja: Φ9.550±0.005 mm
Ubude bomgqomo wokushaja: 160±0.1 mm
Ububanzi bekhanda lenduku yepiston: 9.475±0.005 mm
Ubude bekhanda lenduku yepiston: 6.350±0.100mm
2. Amandla okuhlola ajwayelekile (izinga lesishiyagalombili)
Izinga 1: 0.325 kg = (induku yepiston + ithreyi lesisindo + umkhono wokufaka ukushisa + 1 isisindo somzimba) = 3.187N
Izinga 2: 1.200 kg=(0.325+0.875 isisindo No. 2)=11.77 N
Izinga 3: 2.160 kg = (0.325 + No. 3 1.835 isisindo) = 21.18 N
Izinga 4: 3.800 kg=(0.325+No. 4 3.475 isisindo)=37.26 N
Izinga 5: 5.000 kg = (0.325 + No. 5 4.675 isisindo) = 49.03 N
Izinga 6: 10.000 kg=(0.325+No. 5 4.675 isisindo + No. 6 5.000 isisindo)=98.07 N
Izinga 7: 12.000 kg=(0.325+No. 5 4.675 isisindo+No. 6 5.000+No. 7 2.500 isisindo)=122.58 N
Izinga 8: 21.600 kg=(0.325+0.875 isisindo No. 2+1.835 isisindo No.4+3.475+No.5 4.675+No.6 5.000+No.7 2.500+No.8 2.915 isisindo)=211.8 N. iphutha elihlobene ≤ 0.5%.
3. Ibanga lokushisa: 50-300℃
4. Ukunemba okuqhubekayo kwezinga lokushisa: ±0.5℃.
5. Ukunikezwa kwamandla: 220V±10% 50Hz
6. Izimo zendawo yokusebenza: izinga lokushisa lendawo liyi-10℃-40℃; umswakama ohlobene nendawo ezungezile ngu-30% -80%; asikho isisetshenziswa esidala ukugqwala, akukho kuxhunywa komoya oqinile; akukho ukudlidliza okuzungezile, akukho ukuphazamiseka okunamandla kazibuthe.

Isakhiwo nomgomo wokusebenza:
Imitha yesilinganiso sokuncibilika iyimitha yepulasitiki ekhishwe. Isebenzisa isithando somlilo esishisa kakhulu ukuze senze into elinganisiwe ifinyelele esimweni esincibilikisiwe ngaphansi kwesimo sokushisa esicacisiwe. Into yokuhlola kulesi simo esincibilikisiwe ingaphansi kokuhlolwa kwe-extrusion ngokusebenzisa imbobo encane yobubanzi obuthile ngaphansi kwamandla adonsela phansi omthwalo wesisindo esinqunyiwe. Emkhiqizweni wepulasitiki wamabhizinisi ezimboni kanye nocwaningo lwamayunithi ocwaningo lwesayensi, "izinga lokuncibilika (eliyinqwaba) lokugeleza" livame ukusetshenziselwa ukuveza izakhiwo ezibonakalayo zezinto ze-polymer esimweni esincibilikisiwe njenge-fluidity kanye ne-viscosity. Okubizwa ngokuthi inkomba yokuncibilika ibhekisela esilinganisweni sesisindo sesigaba ngasinye se-extrudate esiguqulelwe kuvolumu ye-extrusion yemizuzu engu-10.
Imitha yesilinganiso sokuncibilika (isisindo) ivezwa yi-MFR, iyunithi ithi: amagremu/amaminithi angu-10 (g/min), futhi ifomula ivezwa ngokuthi: MFR (θ, mnom )=tref .m/t
Kufomula: θ—— izinga lokushisa lokuhlola
mnum - umthwalo ojwayelekile Kg
m —— isisindo esimaphakathi sokusikwa g
tref —— isikhathi sokubhekisela (10min), S (600s)
T —— ukusika isikhawu sesikhathi s
Isibonelo: Iqoqo lamasampula epulasitiki liyasikwa njalo ngemizuzwana engama-30, futhi imiphumela yobuningi besigaba ngasinye yilena: 0.0816 g, 0.0862 g, 0.0815 g, 0.0895 g, kanye no-0.0825 g.
Isilinganiso m = (0.0816+0.0862+0.0815+0.0895+0.0825)÷5=0.0843(g)
Faka esikhundleni sefomula: MFR=600×0.0843/30=1.686 (g/10 amaminithi)
Leli thuluzi lakhiwe isithando somlilo kanye nesistimu yokulawula izinga lokushisa futhi ifakwe esisekelweni somzimba (ikholomu).
Ingxenye yokulawula izinga lokushisa isebenzisa amandla e-single-chip microcomputer kanye nendlela yokulawula izinga lokushisa, enekhono eliqinile lokulwa nokuphazamiseka, ukunemba kokulawula izinga lokushisa eliphezulu, nokulawula okuzinzile. Intambo yokushisisa esithandweni ilinyazwa entweni yokushisisa ngokomthetho othile ukuze kuncishiswe i-gradient yokushisa ukuze ihlangabezane nezidingo ezijwayelekile.