DRK208 Melt Flow Rate Tester

DRK208 melt flow rate tester yog ib qho cuab yeej rau kev 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, nylon fluoroplastics, thiab lwm yam. Kev ntsuas ntawm melt flow rate ntawm polymer 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)
Theem 1: 0.325 kg = (piston pas nrig + qhov hnyav lub tais + lub tes tsho thaum tshav kub kub + 1 lub cev hnyav)
= 3.187 Nr
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 + No. 2 0.875 hnyav + No. 3 1.835 + No. 4
3.475 + No.5 4.675 + No.6 5.000 + No.7 2.500 + No.8 2.915 nyhav) = 211.82 N
Qhov txheeb ze yuam kev ntawm qhov hnyav yog ≤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:ambient kub 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.
7. Sab nraud qhov ntev ntawm qhov ntsuas: 250 × 350 × 600 = (ntev × dav × qhov siab)
Lub hauv paus ntsiab lus thiab kev ua haujlwm:
DRK208 melt flow rate tester yog lub ntsuas yas extruded. 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.
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
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.

Cov kev ceev faj:
1. Lub qhov hluav taws xob ib leeg yuav tsum muaj lub qhov hauv av thiab muaj kev ntseeg siab hauv av.
2. Yog hais tias ib qho kev txawv txav tshwm rau ntawm lub LCD, tua nws ua ntej, rov pib dua qhov ntsuas kub tom qab tig nws, thiab pib ua haujlwm.
3. Thaum lub sijhawm ua haujlwm ib txwm muaj, yog tias qhov cub kub kub siab tshaj 300 ° C, lub software yuav tiv thaiv nws, cuam tshuam cua sov, thiab xa tawm lub tswb.
4. Yog tias qhov tshwm sim txawv txav tshwm sim, xws li qhov ntsuas kub tsis tuaj yeem tswj tau lossis tso tawm, thiab lwm yam, nws yuav tsum raug kaw thiab kho.
5. Thaum ntxuav lub piston pas nrig, tsis txhob txhuam nrog cov khoom tawv.

Nco tseg: Vim muaj kev vam meej, cov ntaub ntawv yuav raug hloov yam tsis tau ceeb toom. Cov khoom yog raug rau cov khoom tiag tiag hauv lub sijhawm tom qab.