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Loj: Standard, OEM & ODM

Xim: xim av, dub, ntsuab, raws li koj xav tau

Ntawm kev lag luam hydraulic, ntau tus neeg yuav tsis meej pem ntawm seb kuv xaiv hydraulic kua sealing FKM O-rings lossis NBR O-rings. Dab tsi yog qhov txawv ntawm lawv. Hauv qab no peb piv thiab sau qhov sib txawv ntawm FKM thiab NBR los ntawm 6 yam. Yog tias koj xav paub ntau ntxiv lossis tseem sau tsis meej pem, thov hu rau peb.

1. Kub kub tsis kam

Fluorine roj hmab FKM: Thaum nws los txog rau fluorine roj hmab, nws kwv yees tias ntau tus neeg yuav xub xav txog nws qhov kub thiab txias. Qhov kub tsis kam ntawm fluorine roj hmab yog tib yam li cov roj hmab silicon, uas tuaj yeem hais tau tias yog qhov zoo tshaj plaws ntawm cov roj hmab elastomers tam sim no. Tus qauv fluorine roj hmab code FKM lossis FPM tuaj yeem siv tau ntawm 200 degree rau lub sijhawm ntev, thaum cov roj hmab perfluoroether FFKM tuaj yeem siv tsis tu ncua ntawm 330 degree txawm siab dua.

Nitrile butadiene roj hmab NBR: Nws tuaj yeem siv tsis pub dhau 100 degree, thiab fluororubber zoo meej rau qhov kub thiab txias.

2. Mechanical zog

FKM: FKM muaj lub cev zoo thiab cov khoom siv kho tshuab, thiab muaj qhov zoo hauv kev tsim kua muag thiab elongation thaum so.

NBR: NBR muaj cov khoom zoo ntawm lub cev thiab cov khoom siv thiab cov khoom ua haujlwm.

3. Kev ruaj ntseg

FKM: Cov khoom siv FKM muaj cov tshuaj lom neeg ruaj khov. Nws kuj yog ib qho ntawm cov roj hmab elastomers nrog kev tiv thaiv zoo rau ntau yam xov xwm. Fluorine roj hmab yog resistant rau silicone ether roj, silicone roj, roj av hauv paus roj, roj diester, feem ntau cov organic thiab inorganic kuab tshuaj, inorganic acids, tshuaj, thiab lwm yam. Ntawm lawv, cov ntaub ntawv uas fluorine roj hmab tsis tuaj yeem tiv taus tsuas yog cov hauv qab no: tsawg molecular ether. , ester, ketone, thiab tag nrho cov ammonia, amine, hydrofluoric acid, phosphoric acid kua siab roj.

4. Kev laus tsis kam

FKM: FKM muaj huab cua zoo heev tiv thaiv thiab ozone kuj. Kev ua tau zoo ntawm cov khoom fluororubber tom qab ntuj cia rau 5 xyoos tseem txaus siab.

NBR: Kev laus tsis kam ntawm NBR yog qhov phem dua li cov roj hmab fluorine. Feem ntau, cov khoom tiav ntawm NBR tuaj yeem khaws cia rau 10 xyoo.

5. Cryogenicity

fluorine roj hmab: Vim nws cov qauv tshuaj, fluororubber nws tus kheej tsis zoo tshwj xeeb ntawm qhov kub thiab txias tsis kam, thiab nws qhov kev ua haujlwm kub qis hauv kev siv tiag kuj yog qhov nruab nrab. Tshwj tsis yog tias cov tshuaj ntxiv tshwj xeeb tuaj yeem ua rau cov fluororubber tiv taus qhov kub thiab txias mus txog 30 degrees, qhov dav dav fluororubber tuaj yeem ncav cuag qhov qis dua 10 degrees.

NBR: dav NBR tuaj yeem tiv taus qhov kub qis - 30 degree, thaum txias resistant NBR tuaj yeem tiv taus qhov kub tsis tshua muaj - 50 degree .

6. Nqe

FKM: FKM kim heev vim nws qhov kev ua tau zoo heev.

NBR: tam sim no, nws yog cov khoom siv roj hmab elastomer kim dua.

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