Raws li "qhov muag" ntawm cov neeg tsav tsheb-kev pabcuam siab tshaj plaws (ADAS) thiab kev tsav tsheb tsis raug cai, cov koob yees duab tsheb yog qhov tseem ceeb rau kev nyab xeeb ntawm tsheb. Kev ncaj ncees ntawm cov tshuab tsis pom kev no vam khom rau lawv lub peev xwm los tiv thaiv ib puag ncig hnyav. Sealing rings, raws li cov khoom tiv thaiv tseem ceeb, ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm los ntawm kev ua haujlwm tiv thaiv plua plav, ya raws, kev co, thiab kub heev. Xaiv qhov raug foob yog qhov tseem ceeb rau kev ntseeg tau ntev. Phau ntawv qhia no qhia txog cov ntsiab lus tseem ceeb - cov khoom siv, qhov loj me, thiab cov qauv kev ua haujlwm - los qhia txog cov txheej txheem kev xaiv rau lub koob yees duab kev sib khi ntawm lub tsheb.
1. Khoom Specifications: Lub hauv paus ntawm Sealing Performance
Kev xaiv ntawm elastomer ncaj qha txiav txim siab lub foob tsis kam rau qhov kub, tshuaj, thiab kev laus. Cov khoom siv tshaj plaws rau lub koob yees duab tsheb sib txuas muaj xws li:
- Nitrile Roj Hmab (NBR): Paub txog kev ua haujlwm zoo rau cov roj av thiab cov roj av, nrog rau kev ua haujlwm zoo. NBR yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov hauv lub cav hauv lub cav lossis thaj chaw raug cov roj pos huab. Hom hardness yog li ntawm 60 txog 90 Ntug A.
- Silicone Roj Hmab (VMQ): Muaj qhov tshwj xeeb ntawm kev ua haujlwm kub (kwv yees li -60 ° C txog + 225 ° C) thaum tswj kev hloov pauv. Nws tsis kam mus rau ozone thiab huab cua ua rau nws nyiam cov khoom siv rau sab nraud lub koob yees duab seals raug tshav ntuj ncaj qha thiab dav ambient kub swings.
- Fluoroelastomer (FKM): Muaj kev tiv thaiv zoo rau qhov kub thiab txias (txog +200 ° C thiab siab dua), roj, roj, thiab ntau yam tshuaj lom neeg. FKM feem ntau tau teev tseg rau cov ntsaws ruaj ruaj nyob ze cov khoom siv hluav taws xob lossis hauv cov khoom siv hluav taws xob kub thiab muaj peev xwm raug tshuaj lom neeg ntawm lub tsheb fais fab (EV) roj teeb. Feem ntau hardness yog nyob nruab nrab ntawm 70 thiab 85 Shore A.
Cov Lus Qhia Xaiv: Qhov chaw ua haujlwm yog qhov tseem ceeb rau kev xaiv cov khoom siv. Xav txog qhov kev xav tau ntawm qhov kub thiab txias, nrog rau kev raug cov kua dej, tshuaj ntxuav, lossis cov ntsev ntawm txoj kev.
2. Dimensional Parameters: Ua kom muaj qhov haum
Lub foob tsuas yog siv tau yog tias nws haum rau lub koob yees duab vaj tsev zoo kawg nkaus. Qhov tseem ceeb ntawm qhov ntsuas yuav tsum tau ua kom zoo sib xws rau cov qauv tsim:
- Inside Diameter (ID): Yuav tsum sib haum rau lub lens chim lossis mounting groove txoj kab uas hla. Tolerances feem ntau nruj, feem ntau nyob rau hauv ± 0.10 hli, los tiv thaiv qhov khoob uas tuaj yeem cuam tshuam lub foob.
- Cross-Section (CS): Qhov txoj kab uas hla ntawm lub foob lub qaum ncaj qha cuam tshuam rau lub zog compression. Feem ntau qhov sib txawv ntawm 1.0 hli mus rau 3.0 hli rau cov koob yees duab me. Qhov tseeb CS xyuas kom txaus compression tsis ua rau muaj kev ntxhov siab ntau dhau uas tuaj yeem ua rau ua tsis tiav ntxov.
- Compression: Lub foob yuav tsum tau tsim kom compressed los ntawm ib feem pua (feem ntau 15-30%) nyob rau hauv nws caj pas. Qhov compression no tsim qhov tsim nyog kev sib cuag siab rau qhov cuam tshuam zoo. Nyob rau hauv-compression ua rau to, thaum over-compression tuaj yeem ua rau extrusion, kev sib txhuam siab, thiab kev laus sai.
Rau cov tsev nyob uas tsis yog tus qauv geometries, kev cai-muab cov ntsaws ruaj ruaj nrog cov di ncauj tsim tshwj xeeb (xws li, U-khob, D-shaped, lossis complex profiles) muaj. Muab cov neeg xa khoom nrog cov duab kos duab 2D lossis 3D CAD qauv yog qhov tseem ceeb rau cov ntawv thov no.
3. Kev ua tau zoo thiab ua raws li: Sib ntsib Automotive Industry Standards
Automotive seals yuav tsum ua kom muaj kev ntsuas nruj kom ntseeg tau tias muaj kev ntseeg siab ntawm lub tsheb lub neej. Cov txiaj ntsig tseem ceeb ntawm kev ua haujlwm muaj xws li:
- Kub Resistance: Cov ntsaws ruaj ruaj yuav tsum tiv thaiv kev sib tw thermal txuas ntxiv (piv txwv li, -40 ° C txog + 85 ° C lossis siab dua rau cov ntawv thov hauv qab) rau ntau txhiab lub voj voog yam tsis muaj tawg, tawv, lossis deformation mus tas li.
- Kev Tiv Thaiv Ingress (IP Rating): Cov ntsaws ruaj ruaj yog qhov tseem ceeb rau kev ua tiav IP6K7 (plua plav-tight) thiab IP6K9K (siab-siab / chav ntxuav). Rau submersion, IP67 (1 meter rau 30 feeb) thiab IP68 (qhov tob dua / ntev dua submersion) yog cov hom phiaj sib txawv, txheeb xyuas los ntawm kev sim nruj.
- Durability thiab Compression Set: Tom qab raug rau lub sij hawm ntev compression thiab kev ntxhov siab (simulated los ntawm kev ntsuam xyuas zoo li 1,000 teev ntawm qhov kub siab), lub foob yuav tsum muaj cov txheej txheem compression tsawg. Tus nqi rov qab los ntawm> 80% tom qab kuaj pom tias cov khoom yuav tuav nws lub zog sib khi lub sijhawm.
- Environmental Resistance: Resistance to ozone (ASTM D1149), UV hluav taws xob, thiab av noo yog tus qauv. Compatibility nrog automotive fluids (brake fluid, coolant, thiab lwm yam) kuj raug txheeb xyuas.
- Automotive Qualifications: Cov neeg tsim khoom lag luam ua haujlwm raws li IATF 16949 kev tswj hwm kev ua haujlwm zoo qhia tau hais tias kev cog lus rau cov txheej txheem nruj uas xav tau rau cov khoom siv tsheb.
Xaus: Ib txoj hauv kev zoo rau kev xaiv
Xaiv lub nplhaib sealing zoo yog qhov kev txiav txim siab zoo uas sib npaug ntawm daim ntawv thov, kev sib tw ib puag ncig, thiab tus nqi. Ua ntej ua tiav qhov kev xaiv, qhia meej meej txog qhov ntsuas kub ntawm kev ua haujlwm, tshuaj lom neeg raug, qhov txwv tsis pub, thiab cov ntawv pov thawj kev lag luam yuav tsum tau ua.
Txawm hais tias ib qho me me, lub nplhaib sib khi yog qhov tseem ceeb rau kev nyab xeeb thiab kev ua haujlwm ntawm cov tshuab tsis pom kev niaj hnub. Ib txoj hauv kev rau kev qhia tshwj xeeb kom ntseeg tau tias cov "qhov muag" ntawm lub tsheb nyob twj ywm meej thiab txhim khu kev qha, mais tom qab mais. Kev koom tes nrog tus neeg tsim khoom tsim nyog uas muab cov ntaub ntawv muaj txiaj ntsig zoo thiab kev txhawb nqa kev lees paub yog qhov tseem ceeb rau kev ua tiav.
Post lub sij hawm: Sep-25-2025