Rubber sealing rings feem ntau yog ua los ntawm nitrile roj hmab, roj hmab ntuj, chloroprene roj hmab, ethylene propylene roj hmab, fluororubber, silicone roj hmab, thiab roj hmab sib xyaw. Lub nplhaib sealing feem ntau yog siv los tiv thaiv roj, dej, corrosion, thiab roj to.
Raws li cov ntaub ntawv sib txawv siv rau kev sib khi rings, muaj ntau qhov sib txawv ntawm cov khoom:
1. High kub resistant sealing nplhaib, 2. High pressure resistant sealing nplhaib, 3. Corrosion resistant sealing nplhaib, 4. Hnav resistant sealing nplhaib
Kev sib piv ntawm ntau yam roj hmab sealing nplhaib cov ntaub ntawv
1, NBR nitrile roj hmab sealing nplhaib: haum rau siv nyob rau hauv roj av hydraulic roj, glycol hydraulic roj, diester lubricating roj, roj av, dej, silicone roj, silicone roj thiab lwm yam xov xwm. Tam sim no nws yog qhov siv ntau tshaj plaws thiab raug nqi roj hmab foob. Tsis haum rau polar solvents xws li ketones, ozone, nitrohydrocarbons, MEK, thiab chloroform. Qhov dav dav qhov kub thiab txias rau kev siv yog -40 ~ 120 degree .
2, HNBR hydrogenated nitrile roj hmab sealing nplhaib: Nws muaj kev tiv thaiv corrosion zoo heev, tsim kua muag tsis kam, thiab compression deformation kuj, nrog rau kev ua haujlwm zoo ozone, tshav ntuj tiv thaiv, thiab huab cua tsis kam. Nws muaj kev hnav zoo dua li cov roj hmab nitrile. Tsim nyog rau kev siv tshuab ntxhua khaub ncaws, tsheb cav tshuab, thiab tshuab tub yees siv lub tshuab ua kom zoo nkauj tshiab R134a. Nws tsis pom zoo kom siv cawv, ester, lossis tshuaj tsw qab. Qhov dav dav qhov kub thiab txias rau kev siv yog -40 ~ 150 degree .
3, SIL silicone roj hmab sealing nplhaib: Nws muaj cov cua kub zoo heev, tiv thaiv txias, tiv thaiv ozone, thiab atmospheric aging kuj. Nws muaj kev ua haujlwm zoo ntawm rwb thaiv tsev. Tab sis lub zog tensile yog phem dua li cov roj hmab zoo tib yam thiab tsis muaj roj tsis kam. Haum rau cov khoom siv hauv tsev xws li hluav taws xob cua sov, cua sov, microwaves, thiab lwm yam. Nws kuj tseem tsim nyog rau ntau yam khoom uas tuaj yeem cuam tshuam rau tib neeg lub cev, xws li lub raj mis dej, lub tshuab tso dej, thiab lwm yam. Nws tsis pom zoo kom siv rau hauv feem ntau. concentrated kuab tshuaj, roj, concentrated acids, thiab sodium hydroxide. Qhov dav dav qhov kub thiab txias rau kev siv yog -55 ~ 250 degree .
4, VITON fluororubber sealing nplhaib: Nws muaj qhov kub thiab txias ua haujlwm zoo dua li cov roj hmab silicone, huab cua tsis zoo, ozone tsis kam, thiab tshuaj lom neeg tsis kam, tab sis tsis zoo txias. Nws muaj kev tiv thaiv rau feem ntau cov roj thiab cov kuab tshuaj, tshwj xeeb tshaj yog cov kua qaub, aliphatic hydrocarbons, aromatic hydrocarbons, thiab tsiaj thiab zaub roj. Haum rau sealing yuav tsum tau ntawm diesel xyaw, roj systems, thiab tshuaj nroj tsuag. Nws tsis pom zoo kom siv hauv ketones, qis molecular hnyav esters, thiab cov khoom sib xyaw uas muaj nitrate. Qhov dav dav qhov kub thiab txias rau kev siv yog -20 ~ 250 degree .
5, FLS fluorosilicone roj hmab sealing nplhaib: Nws qhov kev ua tau zoo ua ke nrog qhov zoo ntawm fluorosilicone roj hmab thiab silicone roj hmab, nrog cov roj zoo heev, hnyav tsis kam, roj tsis kam, thiab kub thiab kub tsis kam. Nws tuaj yeem tiv taus qhov yaig ntawm cov tebchaw uas muaj cov pa oxygen, cov kuab tshuaj uas muaj ntxhiab hydrocarbons, thiab cov kuab tshuaj uas muaj chlorine. Feem ntau siv rau aviation, aerospace, thiab tub rog lub hom phiaj. Cov neeg tsim khoom ntawm cov roj hmab ua npuas ncauj coils tsis pom zoo kom raug rau ketones thiab nres roj. Qhov dav dav qhov kub thiab txias rau kev siv yog -50 ~ 200 degree .
6, EPDM EPDM sealing nplhaib: Nws muaj huab cua zoo, ozone tsis kam, dej tsis kam, thiab tshuaj lom neeg. Nws tuaj yeem siv rau cov dej cawv thiab ketones, nrog rau kev sib khi hauv cov dej vapor kub ib puag ncig. Haum rau cov khoom siv hauv chav dej, lub tsheb radiators, thiab lub tsheb nres tsheb. Tsis pom zoo rau kev siv zaub mov lossis raug cov roj ntxhia. Qhov dav dav qhov kub thiab txias rau kev siv yog -55 ~ 150 degree .
7, CR chloroprene roj hmab sealing nplhaib: Nws muaj kev tiv thaiv zoo rau hnub ci thiab huab cua. Tsis ntshai ntawm cov tub yees xws li dichlorodifluoromethane thiab ammonia, resistant rau dilute acids thiab silicone roj lubricating roj, tab sis nrog ib tug loj expansion nyob rau hauv cov ntxhia roj nrog tsawg aniline ntsiab lus. Yooj yim rau crystallize thiab harden ntawm qis kub. Haum rau ntau qhov chaw uas tuaj rau hauv kev sib cuag nrog huab cua, tshav ntuj, ozone, thiab ntau yam kev sib txuas uas tiv taus combustion thiab tshuaj corrosion. Nws tsis pom zoo kom siv cov tshuaj xws li cov kua qaub muaj zog, nitrohydrocarbons, esters, chloroform, thiab ketones. Qhov dav dav qhov kub thiab txias rau kev siv yog -55 ~ 120 degree .
8, IIR butyl roj hmab sealing nplhaib: Nws muaj zoo airtightness, tshav kub tsis kam, tshav kub tsis kam, ozone kuj, thiab zoo rwb thaiv tsev kev ua tau zoo; Nws muaj kev tiv thaiv zoo rau cov kuab tshuaj polar xws li cawv, ketones, esters, thiab lwm yam, thiab tuaj yeem raug rau tsiaj thiab zaub roj lossis oxides. Haum rau tshuaj resistant los yog lub tshuab nqus tsev. Nws tsis pom zoo kom siv nws ua ke nrog roj av kuab tshuaj, kerosene, lossis aromatics. Qhov dav dav qhov kub thiab txias rau kev siv yog -50 ~ 110 degree .
9, ACM acrylic roj hmab sealing nplhaib: Nws muaj kev tiv thaiv zoo rau cov roj, kub tsis kam, thiab huab cua tsis kam, tab sis nws lub zog txhua yam, compression deformation tus nqi, thiab dej tsis kam yog me ntsis tsis zoo. Feem ntau siv nyob rau hauv automotive kis tau tus mob thiab lub hwj chim steering systems. Tsis haum rau siv dej kub, roj nres, thiab phosphate esters. Qhov dav dav qhov kub thiab txias rau kev siv yog -25 ~ 170 degree .
10, NR ntuj roj hmab sealing nplhaib: Cov khoom siv roj hmab muaj kev hnav zoo, elasticity, tensile zog, thiab elongation. Tab sis nws yooj yim rau kev laus hauv huab cua, ua nplaum thaum raug tshav kub, nthuav thiab yaj yooj yim hauv cov roj ntxhia lossis roj av, thiab yog alkali resistant tab sis tsis muaj zog acid resistant. Tsim nyog siv rau hauv cov kua uas muaj hydroxide ions xws li automotive nres roj thiab ethanol. Qhov dav dav qhov kub thiab txias rau kev siv yog -20 ~ 100 degree .
11, PU polyurethane roj hmab sealing nplhaib: Cov khoom siv ntawm cov roj hmab polyurethane zoo heev, thiab nws cov hnav tsis kam thiab kev kub siab ua haujlwm zoo dua li lwm cov roj hmab. Kev laus tsis kam, ozone kuj, thiab roj kuj tseem zoo heev, tab sis lawv yooj yim hydrolyzed ntawm qhov kub thiab txias. Feem ntau siv nyob rau hauv high-pressure thiab hnav-resistant sealing txheej txheem, xws li hydraulic kheej kheej. Qhov dav dav qhov kub thiab txias rau kev siv yog -45 ~ 90 degree .
Rau kev xaiv cov khoom tshwj xeeb, tiv tauj peb. Txij li thaum, daim ntawv saum toj no tsuas yog qhia luv luv xwb, thiab nyob rau hauv txhua yam khoom, muaj ntau yam subcategories. Piv txwv li, ntau NBR tsuas yog tiv taus 100 degree, thiab tsuas yog peroxide kho NBR tuaj yeem tiv taus 120 degree.