Yuav ua li cas xaiv sealing nplhaib rau hydraulic system?
1, 1. Khoom siv: Nws yog cov khoom siv dav tshaj plaws thiab tus nqi qis tshaj roj hmab foob. Tsis haum rau siv nyob rau hauv polar solvents xws li ketones, ozone, nitrohydrocarbons, MEK thiab chloroform.Tsis haum rau siv nyob rau hauv polar solvents xws li ketones, ozone, nitrohydrocarbons, MEK thiab chloroform. Kev siv dav dav yog -40 ~ 120 ℃. Thib ob, HNBR hydrogenated nitrile roj hmab sealing nplhaib muaj zoo heev corrosion kuj, tsim kua muag kuj thiab compression deformation yam ntxwv, ozone kuj, tshav ntuj tiv thaiv, huab cua kuj zoo. Zoo hnav tsis kam tshaj nitrile roj hmab. Tsim nyog rau kev siv tshuab ntxhua khaub ncaws, tsheb cav tshuab thiab tshuab tub yees siv cov tub yees tshiab R134a. Tsis pom zoo siv rau hauv cawv, esters, lossis tshuaj tsw qab. Kev siv dav dav yog -40 ~ 150 ℃. Thib peb, FLS fluorine silicone roj hmab sealing nplhaib muaj qhov zoo ntawm fluorine roj hmab thiab silicone roj hmab, roj tsis kam, hnyav tsis kam, roj tsis kam thiab siab thiab kub tsis kam yog qhov zoo. Nws tiv taus kev tawm tsam ntawm cov pa oxygen uas muaj cov khoom sib txuas, muaj ntxhiab hydrocarbon uas muaj cov kuab tshuaj thiab cov tshuaj chlorine uas muaj cov kuab tshuaj. Nws feem ntau yog siv rau aviation, aerospace thiab tub rog lub hom phiaj. Tsis pom zoo kom raug rau ketones thiab cov kua dej nres. Kev siv dav dav yog -50 ~ 200 ℃.
2, kev ua tau zoo: Ntxiv rau cov kev cai dav dav ntawm cov khoom siv sib khi, lub nplhaib sib khi yuav tsum tau ua tib zoo saib xyuas cov xwm txheej hauv qab no: (1) elastic thiab resilient; (2) Tsim nyog txhua yam muaj zog, suav nrog lub zog nthuav dav, elongation thiab lub zog tsim kua muag. (3) Kev ua haujlwm ruaj khov, nws tsis yooj yim rau o hauv nruab nrab, thiab cov nyhuv thermal contraction (Joule effect) me me. (4) Yooj yim rau txheej txheem thiab cov duab, thiab tuaj yeem tswj tau qhov loj me. (5) tsis corrode qhov chaw tiv tauj, tsis ua paug qhov nruab nrab, thiab lwm yam. Cov khoom siv zoo tshaj plaws thiab feem ntau siv los ua kom tau raws li qhov xav tau saum toj no yog roj hmab, yog li lub nplhaib sealing feem ntau yog ua los ntawm cov khoom siv roj hmab. Muaj ntau ntau hom roj hmab, thiab muaj cov roj hmab tshiab tas li, tsim thiab xaiv, yuav tsum nkag siab cov yam ntxwv ntawm ntau yam roj hmab, tsim nyog xaiv.
3, qhov zoo: 1, lub nplhaib sealing hauv kev ua haujlwm siab thiab qhov kub thiab txias, yuav tsum muaj kev sib khi zoo, thiab nrog kev nce siab tuaj yeem txhim kho kev sib khi. 2. Kev sib txhuam ntawm lub nplhaib sib khi thiab cov khoom txav yuav tsum yog me me, thiab qhov sib txhuam coefficient yuav tsum ruaj khov. 3. Lub nplhaib sealing muaj zog corrosion kuj, tsis yooj yim rau lub hnub nyoog, muaj lub neej ua haujlwm ntev, zoo hnav tsis kam, thiab tuaj yeem them rov qab tom qab hnav rau qee yam. 4. Cov qauv yooj yim, yooj yim rau siv thiab tswj, kom lub nplhaib sealing muaj lub neej ntev. Kev puas tsuaj ntawm lub nplhaib yuav ua rau cov dej xau, ua rau cov khoom siv pov tseg ntawm kev ua haujlwm, kev ua qias tuaj ntawm lub tshuab thiab ib puag ncig, thiab tseem ua rau kev ua haujlwm tsis zoo thiab cov khoom siv ntawm tus kheej. Internal to yuav ua rau lub volumetric efficiency ntawm hydraulic system poob sharply, thiab lub siab ua hauj lwm yuav tsum tau mus cuag tsis tau, los yog txawm lub luag hauj lwm yuav tsis ua hauj lwm. Cov plua plav me me uas nkag mus rau hauv lub cev tuaj yeem ua rau lossis ua rau hnyav dua qhov hnav ntawm kev sib txhuam ntawm cov khoom siv hydraulic, ntxiv rau kev xau. Yog li ntawd, cov khoom siv sealing thiab sealing yog ib qho tseem ceeb ntawm cov khoom siv hydraulic. Kev ntseeg siab thiab kev pabcuam lub neej ntawm nws txoj haujlwm yog qhov tseem ceeb rau kev ntsuas qhov zoo ntawm hydraulic system.
