Ma'aunin Gudun Narkewa na YYP-400E (MFR)

Takaitaccen Bayani:

Aikace-aikace:

Na'urar gwajin kwararar narkewar YYP-400E kayan aiki ne don tantance aikin kwararar polymers na filastik a yanayin zafi mai yawa bisa ga hanyar gwaji da aka tsara a GB3682-2018. Ana amfani da shi don auna yawan kwararar narkewar polymers kamar polyethylene, polypropylene, polyoxymethylene, ABS resin, polycarbonate, nailan, da fluoroplastics a yanayin zafi mai yawa. Ya dace da samarwa da bincike a masana'antu, kamfanoni da cibiyoyin bincike na kimiyya.

 

Babban sigogin fasaha:

1. Sashen fitar da iska daga waje:

Diamita na tashar fitarwa: Φ2.095±0.005 mm

Tsawon tashar fitarwa: 8.000±0.007 millimeters

Diamita na silinda mai lodi: Φ9.550±0.007 mm

Tsawon silinda mai lodi: 152±0.1 mm

Diamita na kan sandar piston: 9.474±0.007 mm

Tsawon kan sandar piston: 6.350±0.100 mm

 

2. Ƙarfin Gwaji na Daidaitacce (Mataki Takwas)

Mataki na 1: 0.325 kg = (Sandar Piston + Kwandon auna nauyi + Hannun riga mai rufi + Nauyin Nauyi na 1) = 3.187 N

Mataki na 2: 1.200 kg = (0.325 + Lamba ta 2 Nauyi 0.875) = 11.77 N

Mataki na 3: 2.160 kg = (0.325 + Lamba ta 3 Nauyi 1.835) = 21.18 N

Mataki na 4: 3.800 kg = (0.325 + Lamba ta 4 3.475 Nauyi) = 37.26 N

Mataki na 5: 5.000 kg = (0.325 + Lamba ta 5 Nauyi 4.675) = 49.03 N

Mataki na 6: 10,000 kg = (0.325 + Lamba ta 5 4.675 Nauyi + Lamba ta 6 5.000 Nauyi) = 98.07 N

Mataki na 7: 12,000 kg = (0.325 + Lamba ta 5 4.675 Nauyi + Lamba ta 6 5,000 + Lamba ta 7 2,500 Nauyi) = 122.58 N

Mataki na 8: 21.600 kg = (0.325 + Lamba ta 2 0.875 Nauyi + Lamba ta 3 1.835 + Lamba ta 4 3.475 + Lamba ta 5 4.675 + Lamba ta 6 5.000 + Lamba ta 7 2.500 + Lamba ta 8 2.915 Nauyi) = 211.82 N

Kuskuren da ke tsakanin nauyin nauyi shine ≤ 0.5%.

3. Yanayin Zafin Jiki: 50°C ~300°C

4. Daidaiton Zafin Jiki: ±0.5°C

5. Wutar Lantarki: 220V ± 10%, 50Hz

6. Yanayin Aiki:

Zafin Yanayi: 10°C zuwa 40°C;

Danshin Dangi: 30% zuwa 80%;

Babu Matsakaici Mai Lalacewa a Kewaye;

Babu Ƙarfin Iska Mai Sauƙi;

Ba ya haifar da girgiza ko tsangwama mai ƙarfi a filin maganadisu.

7. Girman Kayan Aiki: 280 mm × 350 mm × 600 mm (Tsawon × Faɗi ×Tsawo) 


Cikakken Bayani game da Samfurin

Alamun Samfura

Tsarin da Ka'idar Aiki:

Na'urar gwajin kwararar narkewa wani nau'in na'urar auna filastik ne. A ƙarƙashin takamaiman yanayin zafin jiki, ana dumama samfurin da za a gwada zuwa yanayin narkewa ta hanyar tanda mai zafi. Sannan ana fitar da samfurin narkewa ta cikin ƙaramin rami mai diamita da aka ƙayyade a ƙarƙashin nauyin da aka ƙayyade. A cikin samar da filastik na masana'antu da binciken cibiyoyin bincike na kimiyya, ana amfani da "yawan kwararar narkewa (taro)" sau da yawa don wakiltar ruwa, danko da sauran halayen jiki na kayan polymer a cikin yanayin narkewa. Abin da ake kira ma'aunin narkewa yana nufin matsakaicin nauyin kowane sashe na samfurin fitarwa da aka canza zuwa adadin fitarwa a cikin mintuna 10.

 

 

Ana nuna na'urar auna yawan kwararar narkewa (taro) ta hanyar MFR, tare da na'urar: grams a kowace minti 10 (g/min).

Tsarin shine:

 

MFR(θ, mnom) = tref. m / t

 

Inda: θ —- zafin jiki na gwaji

Mnom— - nauyin da ba a ƙayyade ba (Kg)

m —- matsakaicin nauyin yankewa, g

tref —- lokacin tunani (minti 10), S (600s)

t ——- tazara ta lokaci na yankewa, s

 

Misali:

An yanke rukunin samfuran filastik a kowane daƙiƙa 30, kuma sakamakon nauyin kowane sashe shine: gram 0.0816, gram 0.0862, gram 0.0815, gram 0.0895, gram 0.0825.

Matsakaicin ƙimar m = (0.0816 + 0.0862 + 0.0815 + 0.0895 + 0.0825) ÷ 5 = 0.0843 (grams)

A maye gurbin dabarar: MFR = 600 × 0.0843 / 30 = 1.686 (grams a cikin minti 10)

 

 

 

 

 

 






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