YYP-400E Melt Flow Indexer (MFR)

Kev Piav Qhia Luv:

Cov ntawv thov:

Lub YYP-400E melt flow rate tester yog ib qho cuab yeej siv los txiav txim siab qhov ua tau zoo ntawm cov yas polymers ntawm qhov kub siab raws li txoj kev sim uas tau teev tseg hauv GB3682-2018. Nws yog siv los ntsuas qhov yaj flow rate ntawm cov polymers xws li polyethylene, polypropylene, polyoxymethylene, ABS resin, polycarbonate, nylon, thiab fluoroplastics ntawm qhov kub siab. Nws siv tau rau kev tsim khoom thiab kev tshawb fawb hauv cov chaw tsim khoom, cov tuam txhab lag luam thiab cov tsev kawm tshawb fawb.

Cov kev tsis tseem ceeb:

1. Tshooj tawm ntawm kev rho tawm:

Qhov chaw nres nkoj tawm: Φ2.095 ± 0.005 hli

Qhov chaw nres nkoj tawm ntev: 8.000 ± 0.007 millimeters

Lub txoj kab uas hla ntawm lub tog raj kheej thauj khoom: Φ9.550 ± 0.007 hli

Qhov ntev ntawm lub tog raj kheej thauj khoom: 152 ± 0.1 hli

Lub taub hau ntawm lub piston pas nrig: 9.474 ± 0.007 hli

Piston pas nrig taub hau ntev: 6.350 ± 0.100 hli

2. Lub Zog Ntsuas Txheem (Yim Qib)

Qib 1: 0.325 kg = (Piston Rod + Weighing Pan + Insulating Sleeve + No. 1 Hnyav) = 3.187 N

Qib 2: 1.200 kg = (0.325 + No. 2 0.875 Qhov Hnyav) = 11.77 N

Qib 3: 2.160 kg = (0.325 + No. 3 1.835 Qhov Hnyav) = 21.18 N

Qib 4: 3.800 kg = (0.325 + No. 4 3.475 Qhov Hnyav) = 37.26 N

Qib 5: 5.000 kg = (0.325 + No. 5 4.675 Qhov Hnyav) = 49.03 N

Qib 6: 10.000 kg = (0.325 + Tus lej 5 4.675 Qhov Hnyav + Tus lej 6 5.000 Qhov Hnyav) = 98.07 N

Qib 7: 12.000 kg = (0.325 + Tus lej 5 4.675 Qhov Hnyav + Tus lej 6 5.000 + Tus lej 7 2.500 Qhov Hnyav) = 122.58 N

Qib 8: 21.600 kg = (0.325 + Tus lej 2 0.875 Qhov hnyav + Tus lej 3 1.835 + Tus lej 4 3.475 + Tus lej 5 4.675 + Tus lej 6 5.000 + Tus lej 7 2.500 + Tus lej 8 2.915 Qhov hnyav) = 211.82 N

Qhov yuam kev sib piv ntawm qhov hnyav yog ≤ 0.5%.

3. Kub thiab txias: 50 ° C ~ 300 ° C

4. Kev Ruaj Ntseg Kub: ± 0.5 ° C

5. Lub hwj chim muab hluav taws xob: 220V ± 10%, 50Hz

6. Cov xwm txheej ib puag ncig ua haujlwm:

Kub Ib puag ncig: 10 ° C txog 40 ° C;

Cov av noo sib piv: 30% txog 80%;

Tsis muaj cov khoom siv corrosive nyob ib puag ncig;

Tsis muaj cua tshuab muaj zog;

Tsis muaj kev co lossis kev cuam tshuam ntawm lub zog sib nqus.

7. Qhov Loj ntawm Cov Cuab Yeej: 280 mm × 350 mm × 600 mm (Ntev × Dav ×Qhov siab)

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Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

Cov Qauv thiab Txoj Cai Ua Haujlwm:

Lub tshuab ntsuas qhov ntsuas dej ntws yog ib hom ntsuas yas extrusion. Nyob rau hauv cov xwm txheej kub tshwj xeeb, cov qauv uas yuav tsum tau kuaj yog cua sov rau lub xeev molten los ntawm lub cub tawg kub siab. Cov qauv molten ces raug extruded los ntawm lub qhov me me ntawm lub cheeb tshwj xeeb nyob rau hauv lub nra hnyav ntawm qhov hnyav tau teev tseg. Hauv kev tsim cov yas ntawm cov tuam txhab kev lag luam thiab kev tshawb fawb ntawm cov koom haum tshawb fawb, "melt (pawg) ntws" feem ntau yog siv los sawv cev rau qhov fluidity, viscosity thiab lwm yam khoom siv ntawm cov ntaub ntawv polymer hauv lub xeev molten. Qhov hu ua melt index yog hais txog qhov hnyav nruab nrab ntawm txhua ntu ntawm cov qauv extruded hloov mus rau qhov ntau ntawm extrusion hauv 10 feeb.

Cov ntsuas ntsuas qhov ntsuas ntawm cov dej yaj (pawg) yog qhia los ntawm MFR, nrog rau chav tsev yog: grams ib 10 feeb (g/min).

Tus qauv yog:

MFR(θ, mnom) = tref. m / t

Qhov twg: θ —- qhov kub sim

Mnom— - nominal load (Kg)

m - qhov hnyav nruab nrab ntawm qhov txiav tawm, g

tref —- lub sijhawm siv (10 feeb), S (600s)

t ——- lub sijhawm luv ntawm qhov txiav tawm, s

Piv txwv li:

Ib pawg ntawm cov qauv yas raug txiav txhua 30 vib nas this, thiab cov txiaj ntsig ntawm qhov hnyav ntawm txhua ntu yog: 0.0816 grams, 0.0862 grams, 0.0815 grams, 0.0895 grams, 0.0825 grams.

Tus nqi nruab nrab m = (0.0816 + 0.0862 + 0.0815 + 0.0895 + 0.0825) ÷ 5 = 0.0843 (grams)

Hloov rau hauv tus qauv: MFR = 600 × 0.0843 / 30 = 1.686 (grams ib 10 feeb)