Txhawm rau kom tsis txhob muaj cov roj lubricating los ntawm kev tawm thiab cov khoom txawv teb chaws los ntawm kev nkag mus rau hauv, lub npog npog uas ua los ntawm ib lossis ntau lub ntsiab lus yog fastened rau ntawm ib lub nplhaib lossis lub tshuab ntxhua khaub ncaws ntawm cov kabmob thiab tiv tauj rau lwm lub nplhaib lossis lub tshuab ntxhua khaub ncaws, tsim kom muaj qhov sib txawv me me hu ua labyrinth. Rubber rings nrog ib ncig hla ntu ua rau lub nplhaib sib khi. Nws yog lub npe hu ua O-shaped sealing nplhaib vim nws O-shaped cross-section.

1. NBR nitrile roj hmab sealing nplhaib

Dej, roj av, roj silicone, roj silicone, roj roj raws li cov roj lubricating, roj av-raws li hydraulic roj, thiab lwm yam xov xwm tuaj yeem siv nrog nws. Tam sim no, nws yog qhov kim tshaj plaws thiab feem ntau siv roj hmab foob. Tsis pom zoo siv nrog cov kuab tshuaj polar xws li chloroform, nitrohydrocarbons, ketones, ozone, thiab MEK. Tus qauv ntsuas kub rau kev ua haujlwm yog -40 txog 120 ° C.

2. HNBR hydrogenated nitrile roj hmab sealing nplhaib

Nws muaj kev tiv thaiv zoo rau ozone, tshav ntuj, thiab huab cua, thiab nws tiv taus corrosion, rips, thiab compression deformation. Ntau dua durability piv rau nitrile roj hmab. Zoo tagnrho rau tu lub cav tsheb thiab lwm yam iav. Nws tsis raug qhia kom siv qhov no nrog cov tshuaj tsw qab, cawv, lossis esters. Tus qauv ntsuas kub rau kev ua haujlwm yog -40 txog 150 ° C.

3. SIL silicone roj hmab sealing nplhaib

Nws muaj kev tiv thaiv zoo rau kub, txias, ozone, thiab atmospheric aging yog muaj los ntawm nws. muaj zoo heev insulating zoo. Nws tsis yog roj-resistant, thiab nws lub zog tensile qis dua li cov roj hmab li niaj zaus. Qhov zoo tshaj plaws rau kev siv nrog hluav taws xob cua sov, hluav taws xob hlau, microwave ncu, thiab lwm yam khoom siv hauv tsev. Nws kuj tseem tsim nyog rau ntau yam khoom, xws li cov chaw haus dej haus cawv thiab cov kettles, uas nkag mus rau hauv tib neeg cov tawv nqaij. Nws tsis raug qhia kom siv sodium hydroxide, roj, concentrated acids, lossis feem ntau cov kuab tshuaj concentrated. Qhov ntsuas kub rau kev ua haujlwm zoo tib yam yog -55 ~ 250 ° C.

4. VITON fluorine roj hmab sealing nplhaib

Nws cov huab cua tshwj xeeb, ozone, thiab tshuaj lom neeg ua haujlwm tau sib tw los ntawm nws qhov kub thiab txias tsis kam; Txawm li cas los xij, nws qhov txias tsis kam yog subpar. Feem ntau ntawm cov roj thiab cov kuab tshuaj, tshwj xeeb tshaj yog cov kua qaub, aliphatic thiab aromatic hydrocarbons, nrog rau cov roj zaub thiab tsiaj txhu, tsis cuam tshuam rau nws. Zoo tagnrho rau cov tshuab roj, cov chaw siv tshuaj, thiab diesel cav sealing yuav tsum. Siv nrog ketones, qis molecular hnyav esters, thiab sib tov uas muaj nitrates tsis qhia. -20 txog 250 ° C yog qhov kev ua haujlwm kub ntau yam.

5. FLS fluorosilicone roj hmab sealing nplhaib

Nws qhov kev ua tau zoo sib xyaw ua ke zoo tshaj plaws ntawm silicone thiab fluorine roj hmab. Nws kuj tseem tiv taus cov kuab tshuaj, roj roj, kub thiab qis, thiab roj. muaj peev xwm tiv taus qhov yaig ntawm cov tshuaj xws li cov pa oxygen, cov kuab tshuaj uas muaj ntxhiab hydrocarbons, thiab cov kuab tshuaj uas muaj chlorine. -50 ~ 200 ° C yog qhov kev khiav hauj lwm kub ntau yam.

6. EPDM EPDM roj hmab sealing nplhaib

Nws yog dej resistant, tshuaj resistant, ozone resistant, thiab huab cua resistant. Nws ua haujlwm zoo rau kev sib khi daim ntawv thov uas muaj cawv thiab ketones nrog rau cov dej kub kub. Tus qauv ntsuas kub rau kev ua haujlwm yog -55 txog 150 ° C.

7. CR neoprene sealing nplhaib

Nws yog tshwj xeeb tshaj yog resilient rau huab cua thiab hnub ci. Nws yog resistant rau diluted acids thiab silicone roj lubricants, thiab nws tsis ntshai ntawm refrigerants xws li dichlorodifluoromethane thiab ammonia. Ntawm qhov tod tes, nws nthuav dav hauv cov roj ntxhia nrog cov ntsiab lus aniline tsawg. Tsawg kub ua kom crystallization thiab hardening yooj yim. Nws yog tsim nyog rau ntau yam atmospheric, hnub ci, thiab ozone-exposed tej yam kev mob raws li zoo raws li rau ib tug ntau yam ntawm chemically thiab nplaim-resistant sealing linkages. Kev siv cov kua qaub muaj zog, nitrohydrocarbons, esters, ketone compounds, thiab chloroform tsis qhia. Tus qauv ntsuas kub rau kev ua haujlwm yog -55 txog 120 ° C.

8. IIR butyl roj hmab sealing nplhaib

Nws ua tau zoo tshwj xeeb ntawm huab cua nruj, tiv thaiv tshav kub, tiv thaiv UV, tiv thaiv ozone, thiab rwb thaiv tsev; Tsis tas li ntawd, nws tuaj yeem tiv taus cov ntaub ntawv oxidizable thiab tsiaj thiab zaub roj thiab muaj kev tiv thaiv zoo rau cov kuab tshuaj polar xws li cawv, ketones, thiab esters. Haum rau lub tshuab nqus tsev lossis cov khoom siv tshuaj lom neeg. Nws tsis raug qhia kom siv nrog kerosene, aromatic hydrocarbons, lossis roj av hnyav. -50 rau 110 ° C yog qhov kev ua haujlwm kub ntau yam.

9. ACM acrylic roj hmab sealing nplhaib

Nws cov huab cua tsis kam, roj tsis kam, thiab compression deformation tus nqi yog tag nrho qis dua qhov nruab nrab, txawm li cas los xij nws lub zog txhua yam, dej tsis kam, thiab kub tsis kam yog txhua yam zoo heev. Feem ntau pom nyob rau hauv lub hwj chim steering thiab gearbox systems ntawm lub tsheb. Tsis pom zoo rau kev siv nrog cov dej nres, dej kub, lossis phosphate esters. Tus qauv ntsuas kub rau kev ua haujlwm yog -25 txog 170 ° C.

10. NR ntuj roj hmab sealing nplhaib

Cov khoom siv roj hmab muaj zog tiv thaiv tearing, elongation, hnav, thiab elasticity. Txawm li cas los xij, nws muaj hnub nyoog sai sai hauv huab cua, lo thaum cua sov, nthuav dav, yaj hauv cov roj ntxhia lossis roj av, thiab tiv taus cov kua qaub me me tab sis tsis muaj zog alkali. Tsim nyog rau kev siv hauv cov kua dej nrog hydroxyl ions, xws li ethanol thiab cov dej nres tsheb. -20 mus rau 100 ° C yog qhov kev khiav hauj lwm kub ntau yam.

11. PU polyurethane roj hmab sealing nplhaib

Polyurethane roj hmab muaj cov khoom zoo heev; nws outperforms lwm yam roj hmab nyob rau hauv cov nqe lus ntawm hnav tsis kam thiab siab siab kuj. Nws tiv taus kev laus, ozone, thiab roj kuj zoo heev; tab sis, nyob rau hauv qhov kub thiab txias, nws yog ib qho yooj yim mus rau hydrolysis. Feem ntau siv rau kev sib khi sib txuas uas tuaj yeem tiv taus hnav thiab siab. Tus qauv ntsuas kub rau kev ua haujlwm yog -45 txog 90 ° C.