Faahfaahinta
elastomer-ka poliurethane ee ku dheggan dusha durbaanka waa wax cusub oo polymer synthetic ah oo u dhexeeya caag iyo caag, kaas oo leh labadaba xoog sare iyo dabacsanaan caag ah iyo caag ah.
Waxay leedahay sifooyinka soo socda:
1. Kala duwanaanta adag ee ballaaran. Waxay weli leedahay dhererka iyo adkeysiga caag ka hooseeya adkaanta sare. Kala duwanaanshaha engegan ee elastomer polyurethane waa Shore A10-D80.
2.Awood sare. Xoog jabintooda iyo qaadistooda ayaa aad uga sarreeya kan caagga caalamiga ah ee ku hoos qallafsanaanta isku midka ah. Marka ay adag tahay, xoogga saameyntiisa iyo xoogga foorarsiga ayaa aad uga sarreeya caagga.
3.The xirashada caabbinta waa mid aad u fiican, guud ahaan in kala duwan ee 0.01-0.10 (cm3) /1.61km, oo ku saabsan 3-5 jeer caag ah.
4.Aabista saliida aad u fiican. Elastomer Polyurethane waa nooc ka mid ah isku dhafka polymer polar xooggan, wuxuu leeyahay xiriir yar oo la leh saliidda macdanta aan polarka ahayn, oo ku dhawaad kumana daxaloobay saliidda shidaalka iyo saliidda farsamada.
5. oksidation wanaagsan iyo iska caabin ozone.
6. Waxqabadka nuugista gariir heer sare ah, oo leh hoos u dhac gariir, saameyn baqdin leh.
7. Waxqabadka heerkulka hooseeya ee wanaagsan.
Alaabta Halbeegyada
General polyurethane performance parameters of the qualified inspection report :
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Qaabka polyurethane
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HJ-3190A
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NCO %
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3.7
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Xoogga Jilitaanka (Mpa)
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10
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Xooga Ilmo (KN/m)
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55
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Kordhinta wakhtiga nasashada(%)
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450
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Permanent Compression 22h 70℃(%)
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12
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Akron Abrasion(cm³/1.16km)
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≤0.08
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Qiimaha Adag (Shop A)
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90
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Natiijada Imtixaanka
|
U qalma
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Diagrammatic Drawings and Parameters
Diagrammatic Drawings and Parameters for Polyurethane Pulley(Polyurethane Lagging Pulley):

Balaadhka suunka
(mm)
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Φ1
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Φ2
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L
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L1
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L2
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D1
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D2
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D3
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t1
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t2
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a
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m
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h
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b
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n
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u
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v
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Remarks
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