Raws li cov ntaub ntawv tseem ceeb hauv kev lag luam niaj hnub thiab niaj hnub ua qauv qhia dav dav ntau vim lawv cov khoom siv lub cev thiab tshuaj lom neeg zoo. Lawv cov tub ntxhais muaj zog dag nyob rau hauv lawv elasticity zoo, thermal tiv thaiv, los ntawm tsawg tsawg kub rau cov huab cua kub, thiab los ntawm qhuav kom muaj cov xwm txheej noo. Cov hauv qab no tham txog cov ntawv thov tshwj xeeb thiab kev hloov kho ntawm cov roj hmab thiab cov khoom yas raws li ib puag ncig ib puag ncig.
1. Cov cua kub hloov tau
Roj hmab thiab cov khoom yas muaj qhov ntsuas kub kub kub ntau yam. Nyob ntawm cov khoom tsim tsim, lawv tuaj yeem siv rau hauv ib puag ncig los ntawm - 50℃rau 200℃lossis siab dua. Piv txwv li, ethylene propylene diene monomer (EPDM) tswj hwm nws qhov yooj ntawm qhov kub thiab txias nyob hauv cov cheeb tsam txias. Fluororubber (FKM), vim nws siab - qhov kub siv, yog siv dav hauv cov tshuab hluav taws xob siab xws li cov tshuab hluav taws xob thiab aerospace. Tsis tas li ntawd, roj hmab thiab cov ntaub ntawv yas ua npuas dej (xws li pyyurethane ua npuas ncauj) yog qhov zoo tshaj plaws rau lawv cov rwb thaiv tsev uas muaj hluav taws xob tsis muaj zog.
2. Cov av noo thiab cov tshuaj corrosive ib puag ncig
Roj hmab thiab cov khoom yas muaj qhov zoo kawg tiv thaiv cov av noo thiab tshuaj lom neeg. Nitrile Roj Hmab (NBR), vim nws cov pab pawg polar, cov khoom pov thawj zoo, ua rau nws siv cov hnab looj tes, thiab cov roj ntsha, thiab lwm yam kev siv tshuaj. Cov ntaub ntawv xws li polyvinyl chloride (PVC) thiab cpe cylorinated polyethylene (CULTE}}} Cov pa av noo thiab cov pas dej da dej. Hauv kev lag luam tshuaj, cov roj hmab tshwj xeeb thiab cov yas yas xws li Perfluoroelomer (Fulkm) muaj peev xwm tiv thaiv ntev acids, ua rau lawv xaiv qhov kev xaiv rau cov yeeb nkab tshuaj.
3. Sab nraum zoov thiab UV kis cov chaw ib puag ncig
Huab cua tiv thaiv yog qhov tseem ceeb rau roj hmab thiab cov khoom siv yas tau muaj ntev ntev {}}}}}, cua thiab nag. EPDM thiab Chlorosulfonated Polyethylene (CSM), los ntawm kev ntxiv cov tshuaj tiv thaiv kab mob antioxidants, tuaj yeem ncua kev ua kom tawv thiab tawg. Lawv tau dav siv hauv cov ntawv thov xws li sab nraum zoov cable sheathing, vov vov vov tsev, thiab plua plav tsheb npog. Ib qho ntxiv, qee cov roj hmab - Cov khoom sib xyaw yas cog ntxiv (xws li - Lub sij hawm ruaj khov txawm tias huab cua phem.
4. Cov ntaub ntawv tshwj xeeb ib puag ncig
Roj hmab thiab cov khoom yas kuj tseem pom tshwj xeeb cov chaw zoo lossis tshwj xeeb. Piv txwv li, silicone roj hmab (vmq), vim nws qhov qis dua- kub hloov tau xws li cov ntaub ntawv thov thiab cov khoom siv kws kho pob hluav taws xob. Cov roj hmab thiab cov ntaub ntawv yas (xws li cov roj hmab dub {}}}}} duab cov ntaub thaiv npog thiab hluav taws xob tiv thaiv cov khoom siv hluav taws xob. Tsis tas li ntawd, nplaim taws- rouardant cov roj hmab thiab txhim kho cov khoom siv hluav taws xob hloov kho tshiab (xws li ul94 v-0).
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Roj hmab thiab cov khoom lag luam yas muaj ntau cov kev siv, thiab lawv cov kev ua tau zoo tuaj yeem raug ua kom haum los ntawm cov qauv tsim thiab txheej txheem kev hloov kho. Los ntawm cov neeg siv khoom txhua hnub rau siab - cov khoom siv cov khoom siv, nrog lawv cov kev daws teeb meem yas, txuas ntxiv muab cov kev daws teeb meem zoo rau ntau yam kev lag luam. Yav tom ntej, nrog kev nce qib ntawm cov ntaub ntawv txuj ci, hloov kho cov roj hmab thiab cov khoom siv yas yuav txuas ntxiv mus ntsib daim ntawv thov kev xav tau hauv cov chaw muaj ntau yam.