XNR-400C Gwajin Yawan Narkewa

Abubuwan Gwaji: Ana amfani da su don ƙayyade ƙimar narkewar polyethylene, polypropylene, polyoxymethylene, guduro ABS, polycarbonate, nailan fluoroplastics da sauran polymers a yanayin zafi mai yawa.

XNR-400C mai ƙididdige ƙimar narkewar narkewa kayan aiki ne don auna kaddarorin kwararar polymers na filastik a yanayin zafi mai girma bisa ga hanyar gwaji na GB3682-2018. Ana amfani da polyethylene, polypropylene, polyoxymethylene, guduro ABS, polycarbonate, da nailan fluorine. Auna yawan narke kwararar polymers kamar robobi a babban yanayin zafi. Ya dace da samarwa da bincike a masana'antu, kamfanoni da sassan binciken kimiyya.

Babban fasali:
1. Bangaren fitarwa:
Diamita na tashar fitarwa: Φ2.095± 0.005 mm
Tsawon tashar fitarwa: 8.000 ± 0.005 mm
Diamita na cajin Silinda: Φ9.550±0.005 mm
Tsawon ganga mai caji: 160± 0.1 mm
Piston sanda diamita: 9.475 ± 0.005 mm
Tsawon sandar fistan: 6.350± 0.100mm
2. Matsakaicin ƙarfin gwaji (mataki takwas)
Level 1: 0.325 kg = (fistan sanda + nauyi tire + zafi rufi hannun riga + 1 nauyi jiki) = 3.187N
Level 2: 1.200 kg=(0.325+0.875 nauyi No. 2)=11.77 N
Mataki na 3: 2.160 kg = (0.325 + Lamba 3 1.835 nauyi) = 21.18 N
Mataki na 4: 3.800 kg=(0.325+Lamba 4 3.475 nauyi)=37.26 N
Mataki 5: 5.000 kg = (0.325 + No. 5 4.675 nauyi) = 49.03 N
Level 6: 10.000 kg=(0.325+No. 5 4.675 nauyi + Na 6 5.000 nauyi)=98.07 N
Level 7: 12.000 kg=(0.325+No. 5 4.675
Level 8: 21.600 kg=(0.325+0.875 nauyi na No. 2+1.835 nauyi na No.4+3.475+No.5 4.675+No.6 5.000+No.7 2.500+No.8 2.915 nauyi)=211.8 nauyi Kuskuren dangi ≤ 0.5%.
3. Yanayin zafi: 50-300 ℃
4. daidaiton zafin jiki na yau da kullun: ± 0.5 ℃.
5. Ƙarfin wutar lantarki: 220V± 10% 50Hz
6. Yanayin yanayin aiki: yanayin zafin jiki shine 10 ℃-40 ℃; yanayin zafi na dangi shine 30% -80%; babu matsakaici mai lalata a kusa, babu iska mai ƙarfi; babu vibration a kusa da, babu karfi Magnetic tsangwama.

Tsarin tsari da ƙa'idar aiki:
Mita mai narkar da ruwa shine mitar filastik extruded. Yana amfani da tanderu mai zafi mai zafi don sanya abin da aka auna ya kai ga narkakkar yanayin yanayin zafi da aka ƙayyade. Abun gwajin da ke cikin wannan yanayin narkakkar yana fuskantar gwajin extrusion ta wani ƙaramin rami na wani diamita a ƙarƙashin nauyin nauyin da aka tsara. A cikin samar da filastik na masana'antu masana'antu da kuma binciken sassan bincike na kimiyya, ana amfani da "narke (mass) yawan kwararar ruwa" sau da yawa don bayyana abubuwan da ke cikin jiki na kayan polymer a cikin narkakken yanayin kamar ruwa da danko. Abin da ake kira ma'anar narkewa yana nufin matsakaicin nauyin kowane sashe na extrudate wanda aka canza zuwa girman extrusion na mintuna 10.
Mita mai narke (mass) ta MFR ta bayyana, naúrar ita ce: gram/minti 10 (g/min), kuma ana bayyana dabarar ta: MFR (θ, mnom )=tref .m/t
A cikin dabara: θ—— gwajin zafin jiki
mnom- nauyin nauyi Kg
m -- matsakaicin adadin yanke g
tref ——lokacin magana (minti 10), S (600s)
T —— yanke tazara s
Misali: Ana yanke saitin samfuran filastik kowane sakan 30, kuma sakamakon taro na kowane sashe shine: 0.0816 g, 0.0862 g, 0.0815 g, 0.0895 g, da 0.0825 g.
Matsakaicin m = (0.0816+0.0862+0.0815+0.0895+0.0825)÷5=0.0843(g)
Sauya cikin dabara: MFR=600×0.0843/30=1.686(g/minti 10)
Wannan kayan aikin yana kunshe da tanderun dumama da tsarin kula da zafin jiki kuma an shigar da shi a gindin jiki (ginshiƙi).
Sashin kula da zafin jiki yana ɗaukar ikon microcomputer mai guntu guda ɗaya da hanyar sarrafa zafin jiki, wanda ke da ƙarfin hana tsangwama, daidaiton yanayin zafin jiki mai girma, da kwanciyar hankali. Wutar dumama a cikin tanderun yana rauni akan sandar dumama bisa ga ƙayyadaddun ƙa'ida don rage girman zafin jiki don saduwa da daidaitattun buƙatun.