Silicone sealing nplhaib yog ib hom sealing nplhaib.Nws yog tsim los ntawm ntau yam silica gel thiab siv los kho lub npog npog kom nws tuaj yeem phim qhov sib txawv ntawm ferrule lossis gasket ntawm cov kabmob.Nws txawv ntawm lub nplhaib sealing ua los ntawm lwm cov ntaub ntawv.Kev ua tau zoo ntawm cov dej tsis kam los yog cov dej xau yog qhov zoo dua.Tam sim no, nws yog tsuas yog siv rau waterproof sealing thiab preservation ntawm niaj hnub tsim nyog xws li crisper, mov cooker, dej dispenser, noj su box, magnetized khob, kas fes lauj kaub, thiab lwm yam. hlub los ntawm txhua tus.Yog li niaj hnub no, cia peb saib tob dua ntawm silicone sealing nplhaib.
Qhov txawv ntawm silicone sealing nplhaib thiab lwm yam khoom siv sealing nplhaib:
1. Cov huab cua tiv taus zoo heev
Huab cua tsis kam yog hais txog cov xwm txheej ntawm kev laus xws li fading, discoloration, cracking, chalking thiab lub zog poob vim kev cuam tshuam ntawm lwm yam kev mob xws li lub hnub ncaj qha thiab kub hloov.Ultraviolet hluav taws xob yog qhov tseem ceeb tshaj plaws uas txhawb cov khoom lag luam.Si-O-Si daim ntawv cog lus hauv silicone roj hmab yog ruaj khov rau cov pa oxygen, ozone thiab ultraviolet rays, thiab muaj kev tiv thaiv zoo heev rau kev yaig ntawm ozone thiab oxides.Tsis muaj cov tshuaj ntxiv, nws muaj huab cua zoo heev, txawm tias nws siv sab nraum zoov ntev, nws yuav tsis tawg.
2. Cov khoom siv kev nyab xeeb thiab kev tiv thaiv ib puag ncig
Silicone roj hmab muaj nws lub cev tsis muaj zog, tsis muaj tshuaj lom thiab tsis qab, tsis muaj yellowing thiab tsis ploj tom qab siv mus ntev, thiab tsis tshua muaj kev cuam tshuam los ntawm ib puag ncig sab nraud.Nws ua tau raws li lub teb chaws cov zaub mov thiab kev noj qab haus huv cov qauv.Nws feem ntau yog siv rau hauv cov khoom noj, tshuaj, txhuas nyiaj paste thiab ntau yam roj.chav lim impurity rau.
3. Kev ua haujlwm zoo ntawm hluav taws xob rwb thaiv tsev
Silicone silicone muaj cov khoom siv hluav taws xob zoo heev, thiab tseem zoo heev hauv kev tiv thaiv corona (lub peev xwm los tiv thaiv kev puas tsuaj zoo) thiab arc tsis kam (lub peev xwm los tiv thaiv kev puas tsuaj los ntawm high-voltage arc nkaus).
4. Cov huab cua permeability siab thiab kev xaiv rau kev xa cov roj
Vim yog cov qauv molecular ntawm silica gel, silica gel sealing nplhaib muaj cov roj permeability zoo thiab kev xaiv zoo rau cov roj.Nyob rau hauv chav tsev kub, cov pa permeability ntawm silicone roj hmab rau huab cua, nitrogen, oxygen, carbon dioxide thiab lwm yam gases yog 30-50 lub sij hawm siab tshaj ntawm cov roj hmab ntuj.sij hawm.
5. Hygroscopicity
Lub zog saum npoo ntawm lub nplhaib silicone yog tsawg, uas muaj cov haujlwm ntawm absorbing thiab insulating cov dej noo nyob rau hauv ib puag ncig.
6. Ntau yam ntawm qhov kub thiab txias tsis kam
(1).Kub kub kuj:Piv nrog cov roj hmab zoo tib yam, lub nplhaib sib khi ua los ntawm silica gel muaj qhov ua kom sov zoo dua, thiab tuaj yeem ua kom sov ntawm qhov kub thiab txias yam tsis muaj deformation thiab tsis tsim cov khoom tsis zoo.Nws tuaj yeem siv tas mus li ntawm 150 ° C yam tsis muaj kev hloov pauv, tuaj yeem siv tsis tu ncua ntawm 200 ° C rau 10,000 teev, thiab tuaj yeem siv ntawm 350 ° C rau ib lub sijhawm.Dav siv nyob rau hauv lub sijhawm uas yuav tsum tau ua kom sov, xws li: thermos lub raj mis sealing nplhaib.
(2).Tsawg kub tsis kam:Cov roj hmab zoo tib yam yuav dhau los ua tawv thiab tawv ntawm -20 ° C txog -30 ° C, thaum silicone roj hmab tseem muaj elasticity zoo ntawm -60 ° C txog -70 ° C.Qee qhov tshwj xeeb tsim cov roj hmab silicone Nws tuaj yeem tiv taus qhov kub thiab txias, xws li: cryogenic sealing rings, qhov qis tshaj tuaj yeem ncav cuag -100 ° C.
Disadvantages ntawm silicone roj hmab seals:
(1).Cov khoom siv ntawm lub zog tensile thiab lub zog tsim kua muag tsis zoo.Nws tsis pom zoo kom siv silicone sealing rings rau stretching, tearing, thiab muaj zog hnav nyob rau hauv qhov chaw ua hauj lwm.Feem ntau, nws tsuas yog siv rau static sealing.
(2).Txawm hais tias silicone roj hmab yog sib xws nrog feem ntau cov roj, cov tebchaw thiab cov kuab tshuaj, thiab muaj cov kua qaub thiab alkali tsis kam, nws tsis muaj kev tiv thaiv rau alkyl hydrogen thiab cov roj tsw qab.Yog li ntawd, nws tsis haum rau siv nyob rau hauv ib puag ncig qhov chaw ua hauj lwm siab tshaj 50 phaus.Tsis tas li ntawd, nws tsis pom zoo kom siv silicone seals nyob rau hauv feem ntau cov kuab tshuaj concentrated, roj, concentrated acids thiab diluted caustic soda daws.
(3).Nyob rau hauv cov nqe lus ntawm tus nqi, piv nrog rau lwm yam ntaub ntawv, raug nqi ntawm silicone sealing roj hmab nplhaib yog kuj siab.
Post lub sij hawm: Feb-07-2023
