Tus nqi ntawmRoj Hmab FoobUa tsis tiav: 3 kev puas tsuaj loj ntawm kev xaiv cov khoom tsis yog
Thaum cov khoom txau, ua rau muaj suab nrov los yog kev xaiv tsis tau los ntawm cov khoom siv roj hmab cov khoom siv feem ntau yog qhov laj thawj. Cov American Sealing Association Association uas 63% ntawm kev lag luam kev ua haujlwm tsis ua haujlwm ncaj qha ntsig txog kev foob kev ua tau zoo. Hauv qab no yog cov teeb meem tshwm sim los ntawm cov khoom tsis xws luag:
- Nruab nrab corrosion tsis ua hauj lwm: dog dig roj hmab hauv cov chaw tshuaj lom neeg thaum tau hu rau cov kua qaub, tso cai rau cov nyom sib txuas tau tuaj yeem ua kom muaj kev phom sij.
- Kev kub siab ua rau muaj kev kub ntxhov hauv tsheb hauv tsheb coob, uas poob elasticity ntawm qhov kub siab tshaj 150 degree.
- Dynamic fatigue fracture tshwm sim thaum lub kaw lus hydraulic tawg vim yog reciprocating suab.
Cov ntsiab lus kev lag luam mob: 90% ntawm cov neeg siv kev ua kom pom tseeb ntawm tus nqi, tsis quav ntsej cov khoom yoog tau, thiab tus nqi txij nkawm kawg tau nqi ntau dua li cov khoom sib txawv ntawm 20 zaug!
Kev Ua Tau Zoo Sib Piv Ntawm Qee Cov Khoom Siv Roj Hmab Loj: Qhia Txog Kev Tshawb Fawb
1. NBR Nitrile Roj Hmab
Cov qauv tseem ceeb suav nrog cov roj tsis kam zoo tshaj plaws (ntim hloov tom qab tshem tawm hauv Astm D471 <10%).
Ntau yam: {{{-40 degree rau 120 degree (txog 150 degree hauv lub sij hawm luv luv).
Cov xwm txheej thov suav nrog cov tshuab roj, thooj voos kheej kheej, thiab lubricating roj pipelines.
Kev tawg: hydrogenated nitrile roj hmab (HNBR) txhim kho qhov kub thiab txias rau 160 degree.
2. Fkm fluororubber
Tshuaj lom neeg Kuj: tuaj yeem tiv taus 98% ntawm cov muaj zog acids muaj zog, alkalis, thiab cov kuab tshuaj organic (hla ISO 1817 xeem).
Txwv tsis pub ntsuas kub: {{-20 degree rau 230 degree (instantaneous kub tiv thaiv 260 degree).
Tus nqi sib piv: Tus nqi yog 3-5 zaug uas yog cov roj hmab raug, tab sis kev pabcuam lub neej yog nce los ntawm yim zaug.
3. EPDM Ethylene Propylene Cov Roj Hmab
Huab cua tiv thaiv yog huab tais, nrog ozone kuj zoo tshaj 1000 teev (ASTM D1149 tawg-dawb).
Ib puag ncig cov txiaj ntsig zoo: Dhau FDA 21 CFR 177.2600 Cov Khoom Noj Khoom Noj Qib
Cov ntawv thov raug suav nrog cov kav dej haus dej, lub tshuab ua kom txias, thiab photovoltaic mchaule ntsaws ruaj ruaj.
Cov Qauv Thoob Ntiaj Teb rau Cov Khoom Siv Roj Hmab Kev Kuaj
| Kuaj cov khoom | Cov Qauv Qauv | Qhov taw qhia tseem ceeb | Kev lag luam pib qhov tseem ceeb |
| Kev nyuaj sib txuas | ASTM D395 | 72H @ 150 degree deformation tus nqi | Tsawg dua los yog sib npaug rau 25% (cov khoom lag luam siab tsawg dua lossis sib npaug li 15%) |
| Kuj yuav ntim hloov ntawm kev tshaj tawm | ISO 1817 | Ntim nthuav tawm tom qab kev raus dej rau 7 hnub | Tsawg dua los yog sib npaug rau 30% |
| Lub zog tensile | ASTM D412 | Rhuav Lub Zog | Ntau dua los yog sib npaug rau 10mpa |
| Tsawg txias brittleness | ASTM D2137 | Yam kub yam tsis muaj kab nrib pleb | -40 degree |
Kev xaiv cov khoom xaiv Tsob Ntoo: 3 kauj ruam mus xauv rau hauv cov khoom siv roj hmab zoo tshaj plaws
Kauj ruam 1: Kev Ntsuam Xyuas Mob Tes Haujlwm
Media Hom: Roj / Acid / Luj / Roj
Kub ntau: qhov kub thiab txias thiab kub
Kev hloov siab siab: cov foob pob hluav taws xob lossis lub cev tsis zoo
Kauj ruam 2: Ua Ntej Ua Ntej
Cov Ntsaws Ruaj Ruaj: Corrosion Kuj> Cov Kub Kub Kuj> Elasticity
Zaub Mov Machinery: FDA Faib Kev Pov Thawj> Tsis muaj precipitates> Yooj yim tu
Nws Pib Qhov Chaw: Cov Khoom Siv Roj> Anti-Aging> Tus Nqi Tswj
Kauj ruam 3: Them nyiaj tau zoo
Siv LCC tag nrho lub neej lub voj voog tus nqi:
Cov Khoom Siv Them Nyiaj Rau Tsuas 15%, Kev Nruab Nruab thiab Kev Txij Nkawm Cov Nqi Them Rau 65%
Kev muaj ntawv pov thawj hauv ntiaj teb: Kev lav tau
- Kev Lag Luam Automotive: ITF 16949 System Daim Ntawv Pov Thawj no + PPAP Cov Ntaub Ntawv Pob
- Cov Khoom Siv Kho Mob: USP Chav Vi Biocompatibility Faib
- EU kev ua lag luam: RoHS 2. 0 +} EU 10/2011 Khoom Noj Khoom Noj Ua Ntej Ua raws
- Lub Zog Kev Lag Luam: API 6A / 6D Sealing Kev Ua Pov Thawj
Cov Ntaub Ntawv Cov Ntaub Ntawv: Kev pab txhawb nqa los ntawm cov khoom hloov kho dua tshiab
Rooj plaub 1: Tshuaj Txhuam Lim Kev Hloov Kho.
Thawj Qhov Teeb Meem: EPDM ntsaws ntsaws ruaj ruaj nyob rau hauv lub zog sulfuric acid ib puag ncig nyob rau hauv peb lub hlis.
Kev daws: Siv PTFE-coated fkm sib xyaw.
Cov txiaj ntsig: kev pabcuam lub neej ncua txij li 90 hnub mus rau 18 lub hlis; Tus nqi to txo qis rau xoom.
Rooj plaub 2: Tsheb tshiab lub tsheb roj teeb cua txias zog
Kev sib tw: Yuav tsum tau ntsib -40 degree tsawg qhov kub thiab txias thiab 150 degree kub tsis kam.
Kev daws kev daws teeb meem: Silicone roj hmab thiab cov pa roj fiber ntau ntxiv siv.