XNR-400C Melt Flow Rate Tester

Cov khoom kuaj: Siv los txiav txim siab cov dej ntws ntawm polyethylene, polypropylene, polyoxymethylene, ABS resin, polycarbonate, nylon fluoroplastics thiab lwm yam polymers ntawm qhov kub thiab txias.

XNR-400C melt flow rate tester yog ib qho cuab yeej rau ntsuas cov khoom ntws ntawm cov yas polymers ntawm qhov kub thiab txias raws li txoj kev ntsuas GB3682-2018. Nws yog siv rau polyethylene, polypropylene, polyoxymethylene, ABS resin, polycarbonate, thiab nylon fluorine. Kev ntsuas ntawm cov yaj ntws ntawm cov polymers xws li cov yas ntawm qhov kub thiab txias. Nws yog qhov tsim nyog rau kev tsim khoom thiab kev tshawb fawb hauv factories, kev lag luam thiab kev tshawb fawb txog kev tshawb fawb.

Lub ntsiab nta:
1. Extrusion ntu:
Txoj kab uas hla ntawm qhov chaw nres nkoj tawm: Φ2.095 ± 0.005 hli
Qhov ntev ntawm qhov chaw nres nkoj tawm: 8.000 ± 0.005 hli
Txoj kab uas hla ntawm lub tog raj kheej them: Φ9.550 ± 0.005 hli
Qhov ntev ntawm kev them nyiaj: 160 ± 0.1 hli
Piston pas nrig taub taub: 9.475 ± 0.005 mm
Piston pas nrig taub hau ntev: 6.350 ± 0.100mm
2. Txheem xeem quab yuam (qib yim)
Qib 1: 0.325 kg = (piston pas nrig + qhov hnyav lub tais + lub tes tsho thaum tshav kub kub + 1 lub cev hnyav) = 3.187N
Qib 2: 1.200 kg = (0.325 + 0.875 qhov hnyav No. 2) = 11.77 N
Qib 3: 2.160 kg = (0.325 + No. 3 1.835 hnyav) = 21.18 N
Qib 4: 3.800 kg = (0.325 + No. 4 3.475 yuag) = 37.26 N
Qib 5: 5.000 kg = (0.325 + No. 5 4.675 yuag) = 49.03 N
Qib 6: 10.000 kg = (0.325 + No. 5 4.675 hnyav + No. 6 5.000 nyhav) = 98.07 N
Qib 7: 12,000 kg = (0.325 + No. 5 4.675 hnyav + No. 6 5.000 + No. 7 2.500 nyhav) = 122.58 N
Qib 8: 21.600 kg = (0.325 + 0.875 qhov hnyav ntawm No. 2 + 1.835 qhov hnyav ntawm No.4 + 3.475 + No.5 4.675 + No.6 5.000 + No.7 2.500 + No.8 2.915 qhov hnyav) = 211.82 N. txheeb ze yuam kev ≤ 0.5%.
3. Qhov kub thiab txias: 50-300 ℃
4. Qhov ntsuas kub tsis tu ncua: ± 0.5 ℃.
5. Fais fab mov: 220V ± 10% 50Hz
6. Kev ua haujlwm ib puag ncig: qhov kub thiab txias yog 10 ℃ -40 ℃; tus txheeb ze humidity ntawm ib puag ncig yog 30% -80%; tsis muaj corrosive nruab nrab nyob ib ncig ntawm, tsis muaj zog cua convection; tsis muaj kev vibration ib puag ncig, tsis muaj zog sib nqus cuam tshuam.

Lub hauv paus ntsiab lus thiab kev ua haujlwm:
Lub melt flow rate meter yog extruded yas meter. Nws siv lub qhov cub kub kub ua kom cov khoom ntsuas ncav cuag lub xeev molten raws li qhov ntsuas kub. Cov khoom kuaj nyob rau hauv lub xeev molten no yog raug mus rau ib tug extrusion xeem los ntawm ib tug me me qhov ntawm ib tug tej txoj kab uas hla nyob rau hauv lub load lub ntiajteb txawj nqus ntawm ib tug kws kho qhov hnyav. Hauv kev tsim cov yas ntawm cov tuam txhab lag luam thiab kev tshawb fawb ntawm cov chaw tshawb fawb tshawb fawb, "melt (mass) flow rate" feem ntau yog siv los qhia txog lub cev ntawm cov khoom siv polymer hauv lub xeev molten xws li fluidity thiab viscosity. Qhov hu ua melt index yog hais txog qhov nruab nrab qhov hnyav ntawm txhua ntu ntawm extrudate hloov dua siab tshiab rau hauv lub ntim extrusion ntawm 10 feeb.
Lub melt (mas) flow rate meter yog qhia los ntawm MFR, chav tsev yog: grams / 10 feeb (g / min), thiab cov qauv qhia los ntawm: MFR (θ, mnom ) = tref .m/t
Hauv cov mis: θ—— ntsuas kub
mnom — nominal load Kg
m —— qhov nruab nrab loj ntawm qhov txiav g
tref —— siv sijhawm (10min), S (600s)
T —— txiav tawm lub sijhawm luv s
Piv txwv li: Ib txheej ntawm cov qauv yas raug txiav txhua txhua 30 vib nas this, thiab cov txiaj ntsig ntawm txhua ntu yog: 0.0816 g, 0.0862 g, 0.0815 g, 0.0895 g, thiab 0.0825 g.
Nruab nrab m = (0.0816+0.0862+0.0815+0.0895+0.0825)÷5=0.0843(g)
Hloov mus rau hauv cov mis: MFR = 600 × 0.0843 / 30 = 1.686 (g / 10 feeb)
Cov cuab yeej no yog tsim los ntawm cov cua kub cua sov thiab lub tshuab ntsuas kub thiab tau nruab rau ntawm lub hauv paus ntawm lub cev (kem).
Qhov kev tswj qhov kub thiab txias tau txais ib qho-chip microcomputer lub hwj chim thiab kev tswj qhov kub thiab txias, uas muaj peev xwm tiv thaiv kev cuam tshuam, siab kub tswj qhov tseeb, thiab kev tswj kom ruaj khov. Lub cua sov hlau nyob rau hauv lub cub tawg yog qhov txhab ntawm lub cua sov pas nrig raws li ib tug tej yam kev cai kom txo tau qhov kub thiab txias gradient kom tau raws li tus qauv yuav tsum tau.