Kev siv tshuab ua siv ceramic bearings thiab lub tais roj hmab tais diav yog sib txawv, high-tech ceramic chemical composition muaj tseeb, qhov kev ua tau tsim yog ua ntej. Piv txwv, silicon nitride ceramic hmoov thiab nitrogen purity tom qab cov tshuaj tiv thaiv tau smashed rau nanoscale, sub-micron ultra-nplua hmoov, thiab ces sintered thaum kub thiab siab, nrog cov nano-nyhuv, muaj ntau qhov nce ntawm kev siv, nws tau tau hais tias Tau raug reborn Ceramic bearings nrog siab thiab tsis kub, hnav-resistant, corrosion-resistant, tsis muaj Tseg, hluav taws xob rwb thaiv tsev, self-lubricating, high speed thiab lwm yam ntxwv. Nws tuaj yeem siv rau qhov chaw ua haujlwm hnyav thiab kev ua haujlwm tshwj xeeb. Nws tuaj yeem siv rau hauv kev ua haujlwm ntawm aviation, spaceflight, navigation, petroleum, tshuaj lom neeg kev lag luam, tsheb, khoom siv hluav taws xob, hlau, hluav taws xob, textile, twj, khoom siv tshuaj, kev tshawb fawb thiab kev tiv thaiv hauv teb chaws. Cov ntaub ntawv tshiab ntawm cov khoom siv high-tech; Cov hlua khoob pob zeb thiab cov hlua khoob khis nrog silicon nitride (SI3N4) los yog zirconium oxide tej khoom siv, cov hlau tuav PTFE, nylon 66, polyimide, stainless hlau los yog aviation tshwj xeeb Ua ntawm txhuas, yog li expanding daim ntawv thov ceramic bearing nto. Xws li: kev kub ceev, kev sib tw kub, kev tiv thaiv kev tiv thaiv kab mob, kev sib zog nqus hlau nplhaib, hluav taws xob thaiv kabmob. Yog pom zoo thoob ntiaj teb raws li lub ntsiab ntawm txoj kev coj tus kheej rau yav tom ntej ntawm cov khoom, yuav nyob nrog tus kabmob lag luam tawm ntawm 40 mus rau 60%. Cov lag luam tsis ntev los no yog kwv yees li 1 billion, feem ntau yog siv cov cuab yeej siv high-speed, kev kub ceev, cov khoom kub uas tsis tshua muaj siab, kev txhim kho tam sim no thiab tsim muaj peev xwm hloov maj mam, ceev ceev thiab ntau dua bearings hauv txhua qhov chaw hauv daim ntawv thov.
Ntev lub neej: Raws li SI3N4 ceramic pob ntom, siab ceev centrifugal quab yuam ntawm me, txhuam-resistant, yog li ua tau heev rau cov kev pab cuam lub neej ntawm cov steel steel bearings 4-6 zaug.
Self-lubricating: SI3N4 ceramic pob muaj qee cov teebmeem ntawm kev siv lub tshuab lubrication, yog li SI3N4 ceramic bearings yuav ua haujlwm nyob rau hauv ntau yam mob hnyav xws li kev sib txhuam, txo kev tu vaj tu tsev.
Kev kub ceev thiab tsis tshua muaj suab nrov: Ua siab SI3N4 nrog kub, tsis muaj dav thiab lwm cov yam ntxwv, yog li SI3N4 ceramic bearings yuav ua tau siab dua, qhov kev txwv qis yog 2-3 zaug ntawm cov khoom qub uas tsis zoo li qub, dav siv cov cuab yeej siv high-speed , precision CNC tshuab cov cuab yeej, hluav taws xob ntxaiv, thiab lwm yam., tib lub sij hawm raws li cov kab mob ceramic pob tsawg heev, cov suab nrov nrov heev tsawg heev, yog li koj tuaj yeem siv lub koos pij tawj ua siab ceev.
Kev khiav hauj lwm kub sawv siab tsawg dua: Thaum twg tib qho kev ncav 45000 xuab moos los yog qhov ceev, qhov kub ntawm qhov kub ntawm qis tshaj 20 ℃, thaum ntsuas qhov kub ntawm cov hlau tau mus txog 60 ℃.
Corrosion tsis kam: Raws li ceramic muaj lub ntuj corrosion kuj, SI3N4 ceramic bearings yuav ua tau kom muaj zog acid, alkali, ntsev thiab lwm qhov chaw corrosive.
Kub siab: 800 ℃ yuav ua haujlwm tau.
Non-hlau nplaum, hluav taws xob rwb thaiv tsev: tsis muaj hlau nplaum, hluav taws xob rwb thaiv tsev. SI3N4 ceramic bearings nrog cov hluav taws xob uas tsis yog hlau nplaum, hluav taws xob rwb, muaj peev xwm ua haujlwm hauv qhov uas tsis yog-sib nqus, qhov chaw nyob insulating, tsis muaj peev xwm ua tsis tau cov steel bearings.
Tsoos ceramic yog raug rho tawm ntawm av nplaum, txawm tias cov tshuaj lom neeg muaj pes tsawg ntawm cov khoom siv hluav taws xob yog qhov tseeb, qhov kev ua tiav yog tsim los ua ntej. Piv txwv li, silicon nitride ceramic hmoov thiab cov purity high-purity tom qab cov tshuaj tiv thaiv tau crushed ua nanoscale, submicron ultra-nplua hmoov, thiab ces sintered tom siab thiab siab, nrog cov nano-nyhuv, muaj ntau yam ntxiv nce zog. Kev ua kom lub cev muaj zog, lub zog siab, hnyav ua haujlwm yog qhov tseem ceeb tshaj qhia, silicon nitride ceramic pob uas muaj zog, hnyav ua haujlwm, lub cev nyhav, tsis muaj hlau nplaum, kev tiv thaiv kev kub ntxhov thiab zoo heev kub thiab nws lubricating Lub ntiaj teb pom zoo raws li cov lus cog tseg tshiab tshaj plaws nyob rau hauv thaj teb ntawm pob bearings.
Cov ntaub ntawv tseem ceeb ntawm cov kab mob ceramic: ZrO2, Si3N4, Sic thiab Al2O3. Cov ntaub ntawv tseem ceeb ntawm ntau yam qauv yas bearings yog: [PEEK, POM, PTFE, PE, HDPE, UHMW-PE, PVDF, PI, PP, PBT, thiab lwm yam.].
Piv nrog steel bearings thiab ceramic bearings, qhov kom zoo dua yog:
1, siab tshaj qhov ceev: lub cev nyhav, lub cev nyhav tshaj qhov kev coj tus kheej 1/4, qhov ceev ntawm 3.20g / cm3. Tej yam ua kom sib dua dua hlau, yuav txo qhov kev khiav hauj lwm ntawm centrifugal force, thiaj li kom nce kev ceev tshaj plaws thiab tib qhov tseeb; kev kub ceev thiab kev ua kom acceleration tau dn tus nqi ntau tshaj 3 lab raws li qhov kev lag luam ntawm kev khiav hauj lwm, thiab twv, hnav thiab kub tau raug txo.
2, kev txiav txim siab ua muaj lub siab tawv: Cov teeb meem ntawm ceramic thiab Young's modulus siab dua hlau, tib lub nra, cov neeg kho tshuab deformation me me, uas tuaj yeem siv rau ntau zaus dua; cov ntaub ntawv ceramic vim modulus ntawm elasticity, lub rigidity ratio 15-20% ntawm cov steel txheej txheem.
3, ntev dua lub neej, ntev li 3 zaug ntev dua li cov kabmob: cov kab xuab zeb dua li cov hlau, tib lub nra, lub zog centrifugal kom txo cov kabmob, txo kev txhim kho kom tsawg, thiab vim tias txoj kab kev txhuam coefficient tsawg dua cov hlau, tuaj yeem txo kev khiav hauj lwm kom sov, Txo kev hnav thiab dua, ntxiv lub neej ntawm kev ntxub ntxaug.
4, yuav siv tau rau siab dua kub: cov ntaub ntawv ceramic muaj peev xwm tswj tau nws cov khoom siv dag zog ntawm high temperature, yog li nws yuav siv tau nyob rau hauv lub tshav pob ntawm kub; tag nrho ceramic bearings yuav 500. C saum cov hauj lwm kub.
5, ntau haum rau qhov kub hloov hauv lub ntees: silicon nitride ceramic pob linear expansion coefficient ntawm 3.2 × 10-6 / K, yuav luag cov kabmob hlau 1/4. Vim hais tias ceramics muaj qis dua coefficient ntawm thermal expansion dua li hlau, qhov tshem ntawm ceramic bearings tsawg dua cuam tshuam los ntawm qhov kub hloov dua li steel bearings, cia lawv siv ntau tshaj li qhov kub dav.
6, zoo dua qub kev tiv thaiv, kev ua kom tsis txhob muaj kev tiv thaiv: Qhov no yog vim lub thermal expansion coefficient ntawm ceramic me tshaj li hlau, pab kom tsis txhob thermal deformation, yog li ua kom muaj peev xwm tiv thaiv tsis tau; Cov kabmob khau coj los ua ke ntawm cov roj hmab tsawg dua li ntawm 1/3.
7, tuaj yeem ua haujlwm tsis muaj roj: Tej yam khoom siv nrog lub nruab nrab lubricating, koj tuaj yeem siv cov xov xwm rau lubrication, nws tuaj yeem siv rau hauv lub tshuab nqus tsev, kom tiv thaiv tau lub lubrication ntawm cov roj xos; cov khoom siv roj zas, kev siv cov roj hmab tsis sib haum, kev siv lub roj-lubricated ceramic bearings, Lube roj thinning lossis lean rooj, nws lub peev xwm lubrication tseem tsis qis dua cov roj nplua nyeem feem ntau siv hauv steel bearings; Nqus khoom: Vim yog cov khoom siv roj hmab, cov roj dawb tsis muaj lub tshuab lubricating nyob rau hauv qhov chaw siab ultra-siab nqus, tag nrho lub pob tag nrho Ceramic bearings yuav kov tau qhov teeb meem ntawm cov khoom qub tsis tuaj yeem ua tiav lubrication.
8, cov khoom siv zas yog cov khoom siv inert, kua qaub, alkali, txhuam cov hlab pas, nws tuaj yeem siv rau tshuaj txhuam. Qhov no kuj yog lub tshav pob ntawm cov hlua khau nyob hauv lub lag luam yav tom ntej qhov tseem ceeb tshaj plaws uas yuav tsum tau muaj zog rau kev loj hlob ntawm txoj kev lag luam; yuav siv tau hauv acid, alkali, inorganic, organic ntsev, dej hiav txwv thiab lwm yam kev lag luam, xws li: electroplating khoom, khoom siv hluav taws xob, tshuaj machinery, nkoj tsim, khoom siv kho mob thiab lwm yam.
9, yuav siv tau nyob rau hauv lub chaw magnetic: ceramic non-magnetic, magnetic txawv teb chaws los yog txhooj hais tsis yoojyim rau koom rau cov channel, yuav txo tau abrasive hnav.
10, vim muaj kev xyuam xim, tuaj yeem ua dawb hluav taws xob tiv thaiv kev tiv thaiv yuav siv tau ntau yam khoom siv hluav taws xob los yog cov cuab yeej yuav tsum tau hluav taws xob hluav taws xob.
