Dab tsi yog cov ntaub ntawv ntawm sealing di ncauj xaiv los ntawm?
Sealing daim di ncauj muaj nyob rau hauv ntau yam ntaub ntawv kom tau raws li qhov yuav tsum tau ntawm txawv chaw ua hauj lwm thiab xov xwm. Nov yog qee cov khoom siv sealing di ncauj thiab lawv cov khoom:
Cov khoom siv roj hmab zoo li
Nitrile roj hmab (NBR)
Nws muaj cov roj ua haujlwm zoo heev thiab tuaj yeem siv rau hauv qhov kub ntawm -55 degree ~ 100 degree .
Nws muaj qhov zoo abrasion tsis kam thiab acid thiab alkali tsis kam thiab haum rau ntau yam kev lag luam ib puag ncig.
Fluoroelastomer (FKM / FPM)
Nws muaj qhov ua tau zoo ntawm qhov kub thiab txias thiab tuaj yeem tswj kev ua haujlwm ruaj khov hauv ib puag ncig txog 230 degree.
Nws muaj zog nruab nrab tsis kam, zoo compression deformation kuj, nplaim retardant, thiab huab cua permeability, thiab yog haum rau lub sij hawm uas kub kub, ozone kuj, thiab huab cua tsis kam.
Silicone roj hmab (VMQ)
Thaum tshav kub kub-resistant polymer cov ntaub ntawv, ntau yam kev khiav hauj lwm kub, feem ntau -100 degree ~ 300 degree .
Cov hluav taws xob rwb thaiv tsev zoo heev thiab kev tiv thaiv kev laus, uas tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm qib zaub mov thiab tsim nyog rau ntau lub sijhawm tshwj xeeb.
Acrylic roj hmab (ACM)
Zoo roj tsis kam, zoo ib yam li nitrile.
Lub zog tensile, hardness hloov, thiab lwm yam khoom ntawm lub cev nyob rau hauv chav tsev kub yog zoo dua li cov roj hmab nitrile, thiab qhov kev pab kub yog feem ntau -50 degree ~ 180 degree .
Polyurethane (PU)
Nws muaj qhov zoo ntawm kev puas tsuaj, elasticity, thiab rhuav lub zog.
Nws muaj cov roj ua haujlwm zoo, hnyav tsis kam, thiab kev laus ua haujlwm, thiab tsim nyog rau ntau lub sijhawm sib khi.
Plastics thiab composites
Ultra-siab molecular hnyav polyethylene (UHMWPE)
Nws muaj kev tiv thaiv zoo heev, thiab qhov ntsuas kub yog -160 degree ~ +100 degree .
Nws feem ntau yog siv rau hauv dej thiab cov ntawv thov kub qis thiab muaj lub neej ua haujlwm ntev.
Polytetrafluoroethylene (PTFE)
Resistant mus rau yuav luag txhua cov xov xwm hydraulic, cov kuab tshuaj, thiab ntau yam tshuaj lom neeg.
Nrog rau qhov qis coefficient ntawm kev sib txhuam thiab tsis muaj creeping, nws yog tsim rau siv nyob rau hauv kev lag luam xws li zaub mov, dej haus, thiab tshuaj.
Tshuaj tiv thaiv thiab kev puas tsuaj tuaj yeem txhim kho los ntawm kev ntxiv cov khoom ntxiv xws li carbon fiber.
Lwm yam khoom siv
Hlau
Xws li steel, tooj dag, thiab lwm yam., siv nyob rau hauv sealing zaus uas yuav tsum tau muaj zog thiab kub-resistant.
Txawm li cas los xij, hlau sealing daim di ncauj feem ntau yuav tsum tau siv ua ke nrog roj hmab lossis lwm yam khoom siv elastomeric los txhim kho kev sib khi thiab kev puas tsuaj.
Ceramic
Nws muaj cov hardness siab heev thiab hnav tsis kam thiab haum rau qhov kub thiab txias, siab siab, thiab corrosive ntau zaus.
Txawm li cas los xij, ceramic sealing daim di ncauj yog kim heev rau cov txheej txheem thiab nruab, thiab tsis yooj yim, yog li lawv cov ntawv thov raug txwv.
Hauv cov ntsiab lus, kev xaiv cov khoom siv ntawm daim di ncauj sealing yuav tsum tau ua tiav raws li qhov chaw ua haujlwm tshwj xeeb, kev tshaj tawm xov xwm, qhov kub thiab txias, ntsuas ntsuas, tus nqi, thiab lwm yam. Thaum xaiv, nws raug nquahu kom sab laj nrog tus kws tshaj lij foob cov chaw tsim khoom lossis tus neeg muag khoom rau cov lus qhia meej dua thiab kev txhawb nqa.
