Khoom Description
Nws pib NBR roj hmab foob O nplhaib
NBR (nitrile butadiene roj hmab) yog cov khoom siv feem ntau siv hauv tsheb roj teeb ntsaws ruaj ruaj.
Cov Khoom Siv Khoom: NBR roj hmab muaj cov roj zoo thiab tshuaj lom neeg, ua rau nws tsim nyog siv cov kua electrolytes hauv cov roj teeb ib puag ncig. Nws kuj muaj qhov hnav tsis kam thiab tiv thaiv kev laus thiab tuaj yeem tuav nws elasticity thiab sealing zog nyob rau hauv ntau yam kub thiab txias.
Sealing kev ua tau zoo: NBR cov ntsaws ruaj ruaj tuaj yeem muab kev sib khi ua tau zoo, tiv thaiv electrolyte to hauv lub roj teeb thiab cov dej sab nraud los ntawm kev nkag mus. Qhov no pab tiv thaiv cov khoom hauv lub roj teeb thiab tswj xyuas cov roj teeb kom zoo.
Qhov kub thiab txias: NBR cov ntsaws ruaj ruaj feem ntau muaj peev xwm ua haujlwm hauv qhov kub thiab txias, nrog kev ua haujlwm zoo ruaj khov los ntawm qis mus rau nruab nrab mus rau qhov kub thiab txias. Qhov no ua rau nws haum rau automotive roj teeb daim ntawv thov nyob rau hauv ntau yam kev nyab xeeb tej yam kev mob.
Kev Ua thiab Kev Tsim Khoom: NBR roj hmab yog ib qho yooj yim rau txheej txheem thiab tsim khoom thiab tuaj yeem tsim los ntawm molding, extrusion, lossis txhaj tshuaj molding. Qhov no ua rau nws ua tau zoo dua thiab kev lag luam los tsim cov khoom siv hluav taws xob hauv tsheb loj.
Products Properties Description
NBR (nitrile butadiene roj hmab) automotive roj teeb ntsaws ruaj ruaj muaj cov nram qab no lub cev, tshuaj, mechanical thiab
Kev ua tau zoo
Lub cev muaj zog
Qhov ceev: Qhov ceev ntawm NBR feem ntau yog nyob nruab nrab ntawm 1.0 thiab 1.2 g / cm3, ua rau nws hnyav hnyav.
Elasticity: NBR muaj elasticity zoo thiab tuaj yeem tswj tau nws cov duab thiab foob raws li kev hloov ib puag ncig.
Hnav tsis kam: NBR seals muaj qee yam hnav tsis kam thiab tuaj yeem tiv taus hnav thiab puas thaum siv.
tshuaj muaj zog
Roj tsis kam: NBR muaj cov roj ua haujlwm zoo heev thiab tuaj yeem tiv thaiv kev yaig ntawm ntau yam roj nplua nyeem, roj thiab tshuaj hnyav.
Chemical Resistance: NBR muaj kev tiv thaiv zoo rau ntau yam tshuaj thiab cov kuab tshuaj, suav nrog acids, alkalis, ketones, thiab cawv.
Oxidation tsis kam: NBR cov ntsaws ruaj ruaj muaj qee yam oxidation tsis kam thiab tuaj yeem tswj tau lawv cov kev ua tau zoo nyob rau hauv lub sij hawm ntev raug rau oxygen thiab qhov kub thiab txias.
Mechanical cwj pwm
Lub zog tensile: NBR muaj lub zog tensile siab thiab tuaj yeem tiv taus qee yam tensile thiab compressive zog.
Ductility: NBR cov ntsaws ruaj ruaj muaj qee qhov ductility thiab muaj peev xwm tswj tau lawv cov elasticity thiab sealing zog nyob rau hauv strain thiab deformation.
Tear Resistance: NBR muaj qhov tsim kua muag zoo thiab tuaj yeem tiv taus kua muag thiab kev puas tsuaj.
Kev ua tau zoo
Formability: NBR roj hmab yog ib qho yooj yim rau txheej txheem thiab daim ntawv, thiab complex-shaped seals yuav tsim los ntawm molding, extrusion los yog txhaj molding.
Adhesion: NBR muaj qhov adhesion zoo thiab tuaj yeem txuas nrog lwm cov ntaub ntawv xws li hlau lossis yas.
Cutability: NBR cov ntsaws ruaj ruaj yog ib qho yooj yim los txiav thiab txheej txheem rau hauv qhov xav tau loj thiab cov duab.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev ua tau zoo ntawm NBR cov ntsaws ruaj ruaj yuav txawv raws li cov tuam txhab sib txawv, cov qauv tsim thiab kev kho mob.
DIN 3760 Tus qauv loj ntau yog hais txog
| ib :m | .m. | |||
| (II) DIN 3760 (A) Sab nraud txoj kab uas hla |
||||
| Hlau Sab Nraud Diameter Seals | ||||
| Hauv qab 50 | +10 rau +0.20 | |||
| 50 rau 80 | +0.13 rau +0.23 | |||
| 80 rau 120 | +0.15 txog +0.25 | |||
| 120-180 Nws | +0.18 rau +0.28 | |||
| 180-300 Nws | +0.20 txog +0.30 | |||
| 300 rau 500 | +0.23 rau +0.35 | |||
| Roj Hmab Sab Nrauv Sab Nrauv Seals | ||||
| Hauv qab 50 | +0.15 txog +0.30 | |||
| 50 rau 80 | +0.20 rau +0.35 | |||
| 80 rau 120 | +0.20 rau +0.35 | |||
| 120-180 Nws | +0.25 rau +0.45 | |||
| 180-300 Nws | +0.25 rau +0.45 | |||
| 300 rau 500 | +0.30 rau +0.55 | |||
| (B) Dav | ||||
| 7 rau 10 | ±0.20 | |||
| 12 rau 20 |
±0.30 |
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Nov yog qee yam NBR tsheb roj teeb foob cov duab
O-ring: O-ring yog ib qho ntawm cov qauv foob feem ntau thiab feem ntau yog siv los kaw cov pob qij txha los yog ib nrab voj voog. Nws muaj ib lub voj voos kheej kheej uas muab kev sib khi zoo thiab dej tsis zoo.
Square lossis Rectangular Weather Strips: Square lossis rectangular weather strips yog cov duab uas siv los kaw cov pob qij txha ncaj lossis tiaj. Lawv feem ntau muaj cov duab plaub lossis square cross-section, muab thaj chaw sib khi loj.
U-shaped sealing strip: U-shaped sealing strip muaj U-shaped cross-section thiab feem ntau yog siv los kaw cov pob qij txha nkhaus lossis tsis sib xws. Lawv haum qhov twg elasticity thiab zoo sealing zog yuav tsum tau.
Tshwj xeeb Shaped Seals: Qee lub tsheb roj teeb yuav xav tau cov ntsaws ruaj ruaj tshwj xeeb kom haum rau kev tsim kho lossis kev tsim qauv. Cov khoom tshwj xeeb zoo li no tuaj yeem hloov kho rau cov roj teeb tshwj xeeb thiab kev tsim kho.
Khoom Lub cev parameter Description
Lub cev tsis ua haujlwm ntawm qee yam NBR automotive roj teeb ntsaws ruaj ruaj
Qhov ceev: Qhov ceev ntawm NBR feem ntau yog nyob nruab nrab ntawm 1.0 thiab 1.2 g / cm3.
Hardness: NBR cov ntsaws ruaj ruaj feem ntau muaj qhov tawv ntawm 60 thiab 90 Shore A. Ntug A hardness yog ib chav siv feem ntau ntawm hardness ntsuas uas qhia qhov hardness ntawm cov khoom.
Lub zog tensile: Lub zog tensile ntawm NBR feem ntau yog nruab nrab ntawm 10 thiab 20 megapascals (MPa). Lub zog tensile yog qhov siab tshaj plaws tensile kev nyuaj siab uas cov khoom tuaj yeem tiv taus thaum raug quab yuam.
Elongation ntawm so: Lub elongation ntawm kev tawg ntawm NBR feem ntau yog nyob nruab nrab ntawm 200% thiab 400%. Elongation ntawm kev so yog qhov feem pua ntawm cov khoom siv tuaj yeem ncab ua ntej tawg hauv nro.
Qhov ntsuas kub tsis kam: NBR cov ntsaws ruaj ruaj feem ntau muaj peev xwm ua haujlwm hauv qhov kub ntawm -30 degrees Celsius mus rau +120 degrees Celsius. Qhov no ua rau nws haum rau automotive roj teeb daim ntawv thov nyob rau hauv ntau yam kev nyab xeeb tej yam kev mob.
NBR (nitrile butadiene roj hmab) cov khoom siv tsheb feem ntau raug sim raws li kev siv sib txawv thiab cov qauv kev lag luam.
ASTM D2000: Qhov no yog tus qauv tsim los ntawm American Society for Testing and Materials (ASTM) los txheeb xyuas thiab ntsuas cov khoom siv roj hmab. ASTM D2000 tus qauv suav nrog cov kev ntsuas kev ntsuas rau lub cev lub zog, cov khoom siv tshuaj lom neeg, thermal zog, oxidation tsis kam, thiab lwm yam ntawm cov khoom siv roj hmab.
ISO 1629: Qhov no yog tus qauv luam tawm los ntawm International Organization for Standardization (ISO) uas txhais thiab faib cov khoom siv roj hmab. ISO 1629 tus qauv suav nrog cov kev cai rau npe, sau npe, thiab ntsuas cov khoom siv lub cev ntawm cov khoom siv roj hmab.
ISO 815: Qhov no yog tus qauv luam tawm los ntawm ISO rau ntsuas qhov hardness ntawm cov khoom siv roj hmab. ISO 815 tus qauv siv cov txheej txheem Shore hardness test los ntsuas qhov hardness ntawm cov ntaub ntawv roj hmab los ntawm kev ntsuas lawv qib ntawm rebound.
ISO 37: Qhov no yog ISO-tshaj tawm tus qauv rau ntsuas qhov tensile zog ntawm cov ntaub ntawv roj hmab. ISO 37 tus qauv suav nrog cov kev sim ntsuas rau kev ntsuas lub zog tensile, elongation, tawg lub zog, thiab lwm yam.
ASTM D471: Qhov no yog tus qauv tsim los ntawm ASTM los ntsuas cov roj tsis kam ntawm cov khoom siv roj hmab. ASTM D471 tus qauv ntsuas cov roj tsis kam ntawm cov khoom siv roj hmab los ntawm kev nthuav tawm lawv mus rau ntau hom kua xov xwm thiab ntsuas kev hloov pauv hauv ntim thiab loj.
NBR o nplhaib rau roj teeb, tuaj yeem kho raws li koj xav tau.
Cim npe nrov: Nws pib nbr roj hmab foob o nplhaib, Tuam Tshoj pib nbr roj hmab foob o nplhaib manufacturers, lwm tus neeg, Hoobkas
