Cov Roj Hmab Seal rau Kev Tsim Kho Tshuab thiab Khoom Siv
-
011. Hom foob: cov foob siv feem ntau siv rau cov thooj voos kheej kheej hydraulic, gearboxes thiab lwm yam xwm txheej.2. Cov roj foob (cov foob ntawm lub qhov rooj): siv rau kev sib khi ntawm cov qhov rooj thiab cov tsev, piv txwv li lub cav crankshafts, cov qhov rooj nkag ntawm lub gearbox. -
023. Cov foob sib xyaw ua ke: ua los ntawm roj hmab thiab hlau/yas sib xyaw ua ke, xws li Stepseal, Glacier Gasket, tsim nyog rau qhov kub siab, ceev ceev. Cov qauv foob roj hmab: Cov roj hmab nitrile thiab cov ntaub fiber ntau muaj zog, lub zog compressive nce 40% (txog li 35MPa), qhov coefficient ntawm kev sib txhuam raug txo kom 0.12 (kev txav mus los) siv rau hauv lub tog raj kheej hydraulic piston rod sealing, rotary joint liner. -
034. Cov gaskets thiab sealing gaskets: siv rau flange, sib koom ua ke ntawm qhov chaw zoo li qub sealing, xws li lub tog raj kheej taub hau gasket, hydraulic valve block sealing.5. Hom khoom zoo li: lub nplhaib hnub qub, lub nplhaib plaub fab, daim diaphragm
-
011. Lub kaw lus hydraulic
Daim ntawv thov: excavator hydraulic lub tog raj kheej, crane hydraulic twj tso kua mis, tiv thaiv tshuab propulsion system.Cov yam ntxwv ib puag ncig:Qhov siab ntau: 10-40 MPa (txog li 70 MPa rau lub kaw lus siab)Kub ntau yam: -40 ℃ ~ +120 ℃ (cov xwm txheej tshwj xeeb txog li - 80 ℃ ~ +300 ℃)Nruab Nrab: roj av, roj hydraulic hluavtaws, dej glycol, phosphate esterCov kev cai tshwj xeeb: lub zog siab, tiv thaiv cavitation, tiv thaiv shear deformation -
2. Kev sib kis kab mob
02Daim ntawv thov: kis tau tus mob, hloov pauv rooj plaub, iav thawv.Cov yam ntxwv ib puag ncig:Ceev: 0 ~ 5000 rpm (kev kub ceev bearing foob)Kub: -30 ℃ ~ + 150 ℃ (kev sib txhuam kub tseem ceeb)Nruab Nrab: roj iav, roj, coolantCov kev cai tshwj xeeb: hnav tsis kam, tiv taus roj nkag mus rau hauv huab cua, tiv taus centrifugal force deformation -
3. Lub cev muaj zog
03Daim ntawv thov: crankshaft roj foob, valve stem foob, turbocharger foob.Cov yam ntxwv ib puag ncig:Kub: -40 ℃ ~ + 250 ℃ (cheeb tsam turbocharger)Nruab Nrab: roj, roj, coolant, pa tawmCov kev cai tshwj xeeb: kev tiv thaiv oxidation kub siab, kev tiv thaiv corrosion tshuaj lom neeg, kev tiv thaiv rau kev hloov pauv -
4. Cov khoom siv ua haujlwm zoo heev
04Daim Ntawv Thov: cov tshuab drilling tob hauv hiav txwv, cov tshuab engineering polar, cov tshuab mining.Cov yam ntxwv ib puag ncig:Kub: -60 ℃ ~ +180 ℃ (qhov kub qis tundra lossis qhov kub siab mine)Siab: dej hiav txwv tob 100 MPa lossis ntau dua hydrostatic siabNruab Nrab: av nkos, roj acid, roj crude sulfur siabCov kev cai tshwj xeeb: kev tiv thaiv hluav taws xob, kev tiv thaiv hydrolysis, kev tiv thaiv biodegradation
-
1. Roj hmab nitrile (NBR)
01Cov yam ntxwv:Kev tiv taus roj zoo heev (roj av, roj hydraulic)Kev ua haujlwm zoo thiab kev ua haujlwm tsis zooKub ua haujlwm: -40 ℃ ~ +100 ℃ (lub sijhawm luv luv txog + 120 ℃)Cov ntawv thov ib txwm muaj: cov thooj voos kheej kheej hydraulic, cov roj gearbox seals. -
2. Cov roj hmab fluorine (FKM)
02Cov yam ntxwv:Kev kub siab tiv taus (ntev + 200 ℃, luv luv + 250 ℃)Tiv taus cov tshuaj lom neeg (acid, alkali, solvent)Cov khoom tiv thaiv kev laus zoo heevCov ntawv thov ib txwm muaj: turbocharger seals, aviation hydraulic systems -
3. Cov roj hmab silicone (VMQ)
03Cov yam ntxwv:Qhov kub thiab txias dav heev (-60 ℃ ~ + 230 ℃)Siab elasticity thiab qis compression tas mus li deformationKev rwb thaiv hluav taws xob zooCov ntawv thov ib txwm muaj: kev sib khi ib puag ncig kub tsawg, kev tiv thaiv cov khoom siv hluav taws xob -
4. Roj Hmab Hydrogenated Nitrile (HNBR)
04Cov yam ntxwv:Zoo dua qhov kub thiab txias tsis kam (+ 150 ℃) thiab huab cua tsis kam dua li NBR.Muaj zog tiv taus ozone thiab UVCov ntawv thov ib txwm muaj: lub cav tsheb lub sijhawm roj foob, cov khoom siv roj drilling -
5. Roj hmab Polyurethane (PU)
05Cov yam ntxwv:Kev tiv thaiv kev puas tsuaj siab heev (3-5 zaug ntawm NBR)Lub zog tensile siab thiab tsim kua muag tsis kamKub Ua Haujlwm: -30 ℃ ~ + 80Cov ntawv thov ib txwm muaj: hydraulic lub tog raj kheej piston pas nrig foob rau kev tsim kho tshuab. -
6. Cov ntaub sib xyaw ua ke
06Kev ua haujlwm tsis zoo heevLub zog tensile siab thiab tsim kua muag tsis kamKev xaiv cov khoom siv: polyester fiber (ua haujlwm kub + 130 ℃) thiab aramid fiber (ua haujlwm kub + 250 ℃, lub zog tsim kua muag nce 50%)
-
1. Tsim qauv foob
01Kev tswj tus nqi compression: tus nqi static seal compression ntawm 15-30%, tus nqi dynamic seal compression ntawm 5-15%.Kev ua kom zoo dua ntawm lub kaum sab xis ntawm daim di ncauj: lub kaum sab xis ntawm lub foob ntawm daim di ncauj feem ntau yog 15 ° ~ 30 ° kom sib npaug ntawm kev ntxhov siab thiab kev sib txhuam.Kev sib phim ntawm qhov ntev ntawm qhov groove: ua raws li cov qauv thoob ntiaj teb xws li IS 3601 (hom nplhaib) thiab IS 6194 (roj foob). -
2. Kev Siv Tshuab Hloov Kho Khoom Siv
02Nanocomposite reinforcement: ntxiv graphene thiab carbon nanotubes los txhim kho kev hnav tsis kam.Kev kho cov txheej txheem nto: PTFE txheej txo cov coefficient ntawm kev sib txhuam (ntawm 0.5 txog 0.1).Kev tswj qhov ceev ntawm Crosslink: kev ua kom zoo tshaj plaws ntawm elastic modulus los ntawm sulfur/peroxide vulcanisation system. -
3. Kev tshuaj xyuas dynamic simulation
03Kev tshuaj xyuas cov khoom siv kawg (FEA): kev sim ua qauv ntawm tus cwj pwm deformation ntawm cov foob nyob rau hauv lub siab, kub thiab kev ntxhov siab.Kev sib txuas ntawm ntau lub cev: Xav txog qhov cuam tshuam ntawm kev sib txuas ntawm lub zog thermal rau kev laus ntawm cov khoom siv.Qauv kwv yees lub neej: kev xeem laus sai raws li Arrhenius equation (Arrhenius)
-
1. Cov Ua Rau Tsis Ua Haujlwm Feem Ntau
01Kev laus ntawm cov khoom siv (oxidation, hydrolysis, thermal degradation)Kev hloov pauv tas mus li los ntawm kev nias ntau dhauKev hnav tsis zoo los ntawm cov khoom me me uas ua rau muaj kev sib kisKev puas tsuaj ntawm extrusion los ntawm kev cuam tshuam ntawm lub siab -
2. Kev tiv thaiv kev txij nkawm
02Kev kuaj cov kua dej tsis tu ncua (kev tswj qib NAS ntawm kev ua qias tuaj)Kev saib xyuas qhov kub thiab txias (kom tsis txhob ua haujlwm kub dhau ntev)Kev tswj lub voj voog ntawm lub foob (raws li cov ntaub ntawv MTBF) -
3. Kev daws teeb meem rau cov xwm txheej ua haujlwm tshwj xeeb
03Cov txheej txheem siab: kev sib khi ua los ntawm cov hlau bellowsCov xov xwm uas muaj cov khoom khov kho: tsim cov qauv ntawm cov hmoov avIb puag ncig kev co siab: kev siv cov khoom siv roj hmab siab damping
-
1. Lub tsheb thauj khoom pov tseg hydraulic lub tog raj kheej
01Khoom: Ntaub U-ringKev ua haujlwm mob: 35MPa siab, -30 ℃ qis kub ib puag ncigLub neej ntev: 8000 teev yam tsis muaj qhov xau (siab dua 50% dua li cov khoom ib txwm muaj) -
2. Lub kaw lus kis tau ntawm chaw nres nkoj crane
02Khoom: NBR ob daim di ncauj roj foobTshuab: Centrifugal force balanced tsim, hloov kho rau 4000rpm kev sib hloov ceev.Daim ntawv pov thawj: CE tau ntawv pov thawj (EN 13355: 2014). -
3. Lub tshuab hluav taws xob tshiab
03Khoom: Silicone roj teeb compartment foobYam ntxwv: IP69K qib tiv thaiv, electrolyte corrosion tsis kam.Kev Ntsuas: UL 94 V-0 daim ntawv pov thawj tiv thaiv hluav taws.
-
01Kev muaj peev xwm kho kom haum: kev tsim qauv sai (xa khoom hauv 15 hnub)Kev lav phib xa khoom:Muaj cov khoom siv raw roj hmab sib xyaw ua keMuaj peev xwm tsim khoom: 40 lab qhov chaw txheem + 20 lab qhov chaw kho kom haum rau txhua hli.
-
011. Lub kaw lus sib khi ntse: kev sib xyaw ua ke ntawm lub siab / kub sensors rau kev saib xyuas lub sijhawm tiag tiag.2. Kev tsim cov khoom siv uas zoo rau ib puag ncig: roj hmab uas ua los ntawm cov khoom siv bio-based, cov foob siv tau dua tshiab3. Kev ua haujlwm hnyav heev: kev kub siab heev (> 200 MPa), qhov kub thiab txias qis heev (-196 ℃ kua nitrogen ib puag ncig) kev siv tshuab sealing