Roj foob yog ib qho cuab yeej tsim los kaw cov pob qij txha ntawm kev sib hloov ntawm lub tsheb.Txawm hais tias zoo li qhov yooj yim thiab kev paub dav dav ntawm kev siv hauv tsheb, kev tsim thiab xaiv ntawm qhov no yog ib qho tseem ceeb thiab nyuaj ua haujlwm.
Misconception 1: Xaiv cov roj foob, nws txaus kom paub nws qhov ntev
Qhov loj me yog ib qho tseem ceeb, tab sis deb ntawm qhov parameter nkaus xwb.Nrog rau qhov loj me, cov roj ntsaws ruaj ruaj tuaj yeem sib txawv hauv lawv cov khoom thiab cov peev txheej.Rau qhov kev xaiv kom raug, koj yuav tsum paub txog qhov ntsuas kub ntawm cov roj foob yuav ua haujlwm, cov kev taw qhia ntawm kev sib hloov ntawm cov ncej ntawm lub installation, seb tus qauv tsim xws li ob-breasted yuav tsum tau.
Xaus: rau kev xaiv kom raug ntawm cov roj foob, koj yuav tsum paub tag nrho nws cov kev txwv, thiab qhov yuav tsum tau ua los ntawm cov chaw tsim khoom tsheb.
Kev tsis ncaj ncees 2. Cov roj ntsaws ruaj ruaj yog txhua yam zoo ib yam thiab qhov sib txawv ntawm tus nqi qia los ntawm kev ntshaw ntawm cov chaw tsim khoom
Qhov tseeb, roj foob tuaj yeem ua los ntawm cov khoom sib txawv lossis los ntawm ntau txoj kev.
Cov khoom siv rau kev tsim cov roj foob:
● ACM (acrylate roj hmab) - daim ntawv thov kub -30 ° C ... + 150 ° C. Cov khoom siv pheej yig tshaj plaws, feem ntau siv rau kev tsim cov hub roj foob.
● NBR (roj-thiab-roj roj-resistant roj hmab) - daim ntawv thov kub -40 ° C ... + 120 ° C. Nws yog tus cwj pwm los ntawm kev ua haujlwm siab rau txhua hom roj thiab lubricants.
● FKM (fluororubber, fluoroplastic) - daim ntawv thov kub -20 ° C ... + 180 ° C. Cov khoom siv ntau tshaj plaws rau kev tsim cov camshaft roj foob, crankshafts, thiab lwm yam. Nws muaj kev tiv thaiv siab rau ntau yam acids, raws li nrog rau kev daws teeb meem, roj, roj thiab cov kuab tshuaj.
● FKM+ (branded fluororubbers nrog tshwj xeeb additives) - daim ntawv thov kub -50 ° C ... + 220 ° C. Patented cov ntaub ntawv tsim los ntawm ib tug xov tooj ntawm cov tshuaj loj tuav (Kalrez thiab Viton (tsim los ntawm DuPont), Hifluor (tsim los ntawm Parker)) , nrog rau cov ntaub ntawv Dai-El thiab Aflas).Lawv txawv ntawm cov pa fluoroplastic los ntawm qhov ntev ntawm qhov kub thiab txias thiab muaj zog tiv thaiv acids thiab fuels thiab lubricants.
Nws tseem yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias thaum lub sijhawm ua haujlwm, cov roj foob tsis txhob kov lub ntsej muag ntawm lub ntsej muag, lub foob tau tshwm sim vim yog kev tsim lub tshuab nqus tsev nyob hauv thaj tsam ntawm kev sib hloov ntawm cov ncej siv cov ntawv tshwj xeeb.Lawv cov kev taw qhia yuav tsum raug coj mus rau hauv tus account thaum xaiv, txwv tsis pub cov notches yuav tsis nqus roj rau hauv lub cev, tab sis ntawm qhov tsis sib xws - thawb nws tawm ntawm qhov ntawd.
Nws muaj 3 hom ntawm notches:
● Txoj cai tig
● Sab laug tig
● Rov qab tau
Ntxiv nrog rau cov khoom siv, cov roj ntsaws ruaj ruaj kuj sib txawv hauv cov tshuab tsim khoom.Niaj hnub no, ob txoj kev tsim khoom yog siv: ua nrog cov matrix, txiav los ntawm qhov khoob nrog lub cutter.Hauv thawj kis, kev sib txawv ntawm qhov ntev thiab qhov tsis sib xws ntawm cov roj foob tsis raug tso cai ntawm qib thev naus laus zis.Nyob rau hauv lub thib ob, nrog ib tug loj ntim ntawm ntau lawm, deviations los ntawm tolerances yog ua tau, raws li ib tug tshwm sim ntawm cov roj foob twb muaj qhov ntev sib txawv ntawm cov teev.Xws li cov roj foob yuav tsis muab lub foob zoo thiab yuav pib los ntawm qhov pib, lossis sai sai vim kev sib txhuam ntawm tus ncej, ib txhij ua rau lub ntsej muag ntawm tus ncej nws tus kheej.
Tuav lub roj foob tshiab hauv koj txhais tes, sim khoov nws txoj haujlwm ua haujlwm: hauv cov roj foob tshiab, nws yuav tsum yog elastic, txawm thiab ntse.Lub sharper nws yog, qhov zoo dua thiab ntev dua cov roj foob tshiab yuav ua haujlwm.
Hauv qab no yog cov lus sib piv luv luv ntawm cov roj foob, nyob ntawm seb cov khoom siv thiab cov txheej txheem ntau lawm:
| Pheej yig NBR | High quality NBR | Pheej yig FKM | Zoo FKM | FKM+ | |
|---|---|---|---|---|---|
| Zuag qhia tag nrho Zoo | Kev ua haujlwm tsis zoo thiab / lossis cov khoom siv siv | High quality ntawm kev ua hauj lwm thiab cov khoom siv | Kev ua haujlwm tsis zoo thiab / lossis cov khoom siv siv | High quality ntawm kev ua hauj lwm thiab cov khoom siv | High quality ntawm kev ua hauj lwm thiab cov khoom siv |
| Ntug kev ua haujlwm | Cov npoo tsis machined | Cov npoo yog machined | Cov npoo tsis machined | Cov npoo yog machined | Cov npoo tau ua tiav (nrog rau lub laser) |
| Boarding: | Feem ntau yog ib leeg-mis | Ob-breasted, yog tias tsim nyog | Feem ntau yog ib leeg-mis | Ob-breasted, yog tias tsim nyog | Ob-breasted, yog tias tsim nyog |
| Yog | No | Muaj, yog tias tsim nyog | Tej zaum nws yuav tsis yog | Muaj, yog tias tsim nyog | Muaj, yog tias tsim nyog |
| Kev tsim khoom engineering | Txiav nrog lub cutter | Matrix ntau lawm | Matrix ntau lawm | Matrix ntau lawm | Matrix ntau lawm |
| Khoom siv ntawm kev tsim khoom | Roj-resistant roj hmab | Roj-resistant roj hmab nrog tshwj xeeb additives | Pheej yig PTFE tsis muaj tshwj xeeb additives | Zoo PTFE | Zoo PTFE nrog tshwj xeeb additives (xws li Viton) |
| Daim ntawv pov thawj | Qee cov khoom yuav tsis raug lees paub | Cov khoom muaj ntawv pov thawj | Qee cov khoom yuav tsis raug lees paub | Cov khoom muaj ntawv pov thawj | Tag nrho cov nomenclature tau lees paub raws li TR CU |
| Qhov kub thiab txias | -40 ° C ... + 120 ° C (qhov tseeb yuav qis dua) | -40 ° C ... + 120 ° C | -20 ° C ... + 180 ° C (qhov tseeb yuav qis dua) | -20 ° C ... + 180 ° C | -50 ° C ... + 220 ° C |
Post lub sij hawm: Lub Xya hli ntuj-13-2023