Bearings yuav luag txhua qhov chaw hauv peb lub neej, xws li tsheb kauj vab sib koom ntawm sab ntawm txoj kev, cov khoom siv hauv tsev hauv tsev, mus rau lub dav hlau saum ntuj, thiab cov dav hlau thauj mus rau hauv dej, txhua yam tsis tuaj yeem nyob tsis muaj bearings.
Txawm li cas los xij, lub ntsiab bearing siv nyob rau hauv high-precision machinery yog tseem nyob rau hauv ib tug dawb paug nyob rau hauv peb lub teb chaws.
Qhov tseeb ntawm dov bearings feem ntau muab faib ua tsib qib: P0, P6, P5, P4 thiab P2. Lub precision ntawm bearings siv rau precision tshuab cuab tam spindles yuav tsum yog P5 thiab siab dua. Rau CNC tshuab cuab yeej, machining chaw thiab lwm yam high-ceev, railway, aviation thiab lwm yam high-tech teb, nws yog tsim nyog los siv P4 thiab saum toj no ultra-precision bearings. P4 thiab siab dua ultra-precision bearings muaj cov kev xav tau siab rau kev ua haujlwm thiab kev ntseeg tau, ib nrab ntawm cov kev thov hauv tsev Tag nrho cov saum toj no yog nyob ntawm kev xa khoom.
Video: Cov kws tshaj lij tshuaj xyuas qhov sib txawv ntawm cov kabmob hauv tsev thiab txawv teb chaws
Yog li ntawd, muaj qhov sib txawv loj ntawm cov kabmob hauv tsev thiab cov kabmob tuaj txawv teb chaws. Cov laj thawj tseem ceeb yog raws li nram no:
Qhov sib txawv ntawm qhov zoo ntawm cov bearings tiav
Ntau qhov kev ntsuam xyuas hauv tsev thiab txawv teb chaws tau pom tias kev ua haujlwm zoo ntawm tawb, rings, thiab steel pob muaj qhov sib txawv ntawm cov kev cuam tshuam ntawm cov kabmob vibration, ntawm cov kev ua haujlwm zoo ntawm cov npas steel muaj qhov pom tseeb tshaj plaws ntawm cov kabmob vibration, ua raws. los ntawm kev ua haujlwm zoo ntawm cov nplhaib, qhov cuam tshuam tseem ceeb tshaj plaws yog qhov sib tw, waviness, nto roughness, nto pob, thiab lwm yam ntawm steel pob thiab ferrules.
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Qhov teeb meem tseem ceeb tshaj plaws ntawm kuv lub teb chaws cov khoom lag luam steel pob yog qhov loj dispersion ntawm kev vibration qhov tseem ceeb thiab loj defects (ib qho taw tes, pab pawg taw tes, qhov tob, thiab lwm yam). Txawm hais tias qhov kev ntxhib los mos ntawm qhov chaw, qhov loj me, cov duab, thiab qhov yuam kev tsis yog qis dua li theem sab nraud ntawm lub voj voog, kev sib xyaw ua ke ntawm qhov kev vibration nqi ntawm lub rear bearing yog siab, thiab txawm ua rau lub suab txawv txav. Qhov teeb meem tseem ceeb yog qhov waviness tsis tswj tau (tsis muaj tus qauv, tsis muaj kev ntsuam xyuas tsim nyog thiab ntsuas ntsuas). Nyob rau tib lub sijhawm, nws qhia tau hais tias qhov kev vibration tsis kam ntawm lub cuab yeej siv lub tshuab tsis zoo, thiab muaj teeb meem nrog lub log sib tsoo, sib tsoo disc, coolant, thiab cov txheej txheem tsis. ; Ntawm qhov tod tes, nws yog ib qho tsim nyog los txhim kho qib kev tswj hwm kom tsis txhob muaj teeb meem tsis zoo xws li pob, khawb, thiab hlawv.
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Rau lub nplhaib, channel waviness thiab nto roughness yog qhov tseem ceeb tshaj plaws uas cuam tshuam rau kev co ntawm cov kabmob. Piv txwv li, thaum lub roundness ntawm lub puab thiab sab grooves ntawm me me thiab nruab nrab-qhov loj qhov sib sib zog nqus groove pob bearings yog ntau tshaj 2 μm, nws yuav muaj kev cuam tshuam loj rau kev co ntawm cov kabmob. Nws tuaj yeem ua rau muaj kev vibration ntau dua 4dB, thiab txawm tsim lub suab txawv txav.
Cov txheej txheem ntau lawm, kev txawj ntse, thiab lwm yam nthuav dav qhov deb
1. Qhov sib txawv hauv kev siv tshuab. Kev sib raug zoo ntawm kev coj tus kheej cov neeg ua haujlwm thiab txawm tias engineers tsis raug hwm raws li nws yuav tsum yog (qhov xwm txheej no tau hloov pauv ntau hauv xyoo tas los). Txoj kev loj hlob ntawm kuv lub teb chaws txoj kev lag luam kev kawm tsis sib npaug, thiab kev kawm txuj ci tsis tau txais kev saib xyuas. Yog li ntawd, cov tub ntxhais hluas xav tau cov neeg ua haujlwm dawb-dab tshos tsis muaj dab tsi ua dua li ua haujlwm ntawm cov kab ntau lawm. Nyob rau tib lub sijhawm, nws kuj tau ua rau txhua tus neeg pib ua lag luam hauv Suav teb niaj hnub no, thiab feem ntau cov chaw tsim khoom me me thiab cov kabmob thiab cov tuam txhab kabmob tsis muaj cov neeg ua haujlwm zoo, yog li lawv tsuas tuaj yeem tsim qee yam khoom siv qis kawg uas tsis muaj kev sib tw.
2. Qhov sib txawv ntawm cov khoom siv. Lub ntiaj teb cov hlau nyob ntawm Tuam Tshoj, thiab Tuam Tshoj cov hlau nyob ntawm Hebei, tab sis qhov no tsuas yog hais txog cov khoom tsim tawm ntawm cov hlau tsis huv. Qhov no kuj yog ib qho ntawm cov laj thawj vim li cas kev lag luam hauv ntiaj teb tau poob qis hauv xyoo tas los no, kev tsim khoom steel hauv tsev tau dhau lawm, thiab cov nqi hlau tau poob qis. Alloy steel yeej ib txwm ua qhov tsis txaus ntawm kev lag luam steel hauv tsev, thiab cov cuab yeej siv hluav taws xob high-end yog nruj me ntsis txwv tsis pub los ntawm cov teb chaws tsim. Tsis tas li ntawd, qhov tsis muaj kev tshawb fawb thiab kev loj hlob ntawm domestic steel tuam txhab uas muag tau ua rau lub congenital deficiency ntawm bearings thiab txawm industrial technology nyob rau hauv peb lub teb chaws.
3. Qhov sib txawv ntawm cov txheej txheem ntau lawm. Ntawm no, kuv tsuas qhia kuv txoj kev xav. Cov txheej txheem ntau lawm yog qhov txuas tseem ceeb tshaj plaws hauv kev lag luam thev naus laus zis. Nws yog ib txoj hauv kev uas qhov kev hloov pauv ntau ua rau muaj kev hloov pauv zoo. Siv cov cuab yeej siv tshuab ua piv txwv, bearings muaj kev cuam tshuam loj rau qhov tseeb ntawm cov cuab yeej siv tshuab. Cov neeg siv khoom loj ntawm high-end precision bearings yog tshuab cuab yeej spindle bearings. Txawm li cas los xij, muaj qhov sib txawv loj ntawm lub neej thiab precision ntawm domestic precision bearings thiab txawv teb chaws bearings.
4. Ntau cov khoom sib txawv. Bearing manufacturers thiab daim ntawv thov manufacturers yog kev sib raug zoo ntawm ntses thiab dej. Yog tsis muaj cov kabmob zoo, cov cuab yeej zoo tsis tuaj yeem tsim tau, thiab cov kabmob zoo tsis tuaj yeem ua tiav yam tsis muaj cov cuab yeej siv tshuab txhim khu kev qha. Raws li kuv paub, loj-scale machining manufacturers pib yuav imported tshuab cuab yeej. Txawm li cas los xij, qee cov tuam txhab me me hauv tsev yuav zoo dua yuav cov cuab yeej siv tshuab qub los ntawm ib puas xyoo dhau los thiab hloov lawv mus rau hauv cov cuab yeej tshwj xeeb tshuab rau kev coj tus kheej ntau dua li yuav cov cuab yeej siv tshuab ntawm cov npe nrov hauv tsev. Muaj nqe yam tseem ceeb thiab cov tswv yim zoo.
5. Tsis muaj zog txhawb nqa. Nyob rau hauv xyoo tas los no, kuv lub teb chaws txoj kev tsheb ciav hlau siab ceev tau tsim sai heev, tab sis cov tsheb ciav hlau ceev ceev tau yuav los ntawm Schaeffler Group hauv lub teb chaws Yelemees. Qhov laj thawj tseem ceeb yog tias nyob rau hauv kev tswj hwm ntawm qee tus thawj coj, Schaeffler, Northwest Bearing Factory, pib koom tes. Txawm li cas los xij, nyob rau hauv ob peb xyoos ntawm kev koom tes, Northwest Bearing Factory tsis tau txais kev txhawb nqa tsim nyog thiab poob ntau ntawm kev lag luam, ua rau poob ntawm Northwest Bearing niaj hnub no.
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Cov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khawm
Piv nrog rau txawv teb chaws lub teb chaws, muaj qhov sib txawv loj ntawm domestic bearings nyob rau hauv high-end thiab loj bearings. Lub ntsiab kev lag luam yog:
01
kev dav hlau
Raws li lub ntsiab lus tseem ceeb ntawm aero-engines, cov teb chaws txawv teb chaws tab tom tsim cov tshuab aero-cav thib ob nrog rau qhov sib piv ntawm 15-20, uas yuav sib sau ua ke rau hauv thib tsib tiam neeg sib tw nyob ib ncig ntawm 2020. Hauv 10 xyoo dhau los, Tebchaws Asmeskas tau tsim cov kabmob thib ob rau aero-engines. Cov neeg sawv cev steel hom yog cov muaj zog corrosion-resistant bearing steel CSS{11}}L resistant rau 500 degree thiab high-nitrogen stainless bearing steel X30 (Cronidur30) resistant rau 350 degree . Tuam Tshoj Kev tshawb fawb thiab kev tsim cov bearings rau thib ob-tiam aero-engines tab tom ua.
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02
tsheb
Rau tsheb log bearings, thawj thiab thib ob tiam log bearings (pob bearings) yog dav siv nyob rau hauv Tuam Tshoj, thaum lub sij hawm peb tiam log bearings tau dav siv nyob rau hauv cov teb chaws Europe. Lub ntsiab zoo ntawm 3rd tiam hub bearings yog kev ntseeg siab, luv luv payload nrug, yooj yim installation, tsis xav tau kev hloov, compact qauv, thiab lwm yam. Tam sim no, feem ntau ntawm cov qauv imported los ntawm Tuam Tshoj siv no lub teeb yuag thiab integrated qauv hub bearing.
duab
03
tsheb ciav hlau
Tam sim no, bearings rau cov tsheb ciav hlau hnyav hauv Tuam Tshoj txoj kev tsheb ciav hlau yog tsim los ntawm domestically tsim electroslag remelting G20CrNi2MoA carburizing steel, thaum lub teb chaws txawv teb chaws tau siv lub tshuab nqus tsev degassing smelting technology ntawm ultra-high-purity bearing steel (EP steel) thiab thev naus laus zis ntawm homogenizing. inclusions (IQ steel), ultra-ntev-lub neej steel technology (TF steel), zoo-grained tshav kub kho tshuab, nto superhardening kev kho mob technology thiab advanced sealing lubrication tshuab yog siv rau kev tsim thiab tsim cov bearings, yog li zoo heev txhim kho lub neej thiab kev ntseeg siab ntawm bearings. Tuam Tshoj tus electroslag bearing steel tsis yog tsuas yog qis qis, tab sis kuj raug nqi 2,000-3,{10}} yuan / ton siab dua lub tshuab nqus tsev degassed steel. Electroslag bearing steel siv.
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04
Cua zog
Raws li rau cua fais fab bearings, Tuam Tshoj tam sim no tsis muaj peev xwm tsim high-tech ncej bearings thiab ceev reducer bearings, cia siab rau imports, thiab localization ntawm kev txhawb nqa bearings rau cua turbines saum 3MW tseem tsis tau daws. Txhawm rau txhim kho lub zog, tawv thiab kev pabcuam lub neej ntawm lub zog cua bearings txawv teb chaws, ib hom tshiab ntawm kev kho cua sov tshwj xeeb steel SHX (40CrSiMo) tau txais yuav. Rau yaw thiab pitch bearings, qhov tob ntawm hardened txheej, nto hardness, mos siv dav thiab nto tawg.
Carbonitriding yog siv rau kev ceev reducer bearings thiab spindle bearings, kom qhov chaw ntawm qhov chaw tuaj yeem tau txais cov khoom seem ruaj khov ntau dua austenite ntim feem (30 feem pua -35 feem pua)) thiab ntau cov carbides zoo thiab carbonitrides, uas txhim kho cov kabmob. tiv taus cov pa phem thiab lubrication. Kev pabcuam lub neej raws li kev ua haujlwm.
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Kev txhim kho cov kev taw qhia ntawm domestic bearings yav tom ntej
Feem ntau xav txog plaub yam ntawm kev txhim kho:
01. Cov kabmob steel huv
Raws li qhov kev txiav txim siab ntawm kev lag luam, ntxiv txhim kho kev huv ntawm cov hlau, txo cov ntsiab lus ntawm cov pa oxygen thiab titanium hauv cov hlau, thiab mus txog qib uas cov feem ntau ntawm cov pa oxygen thiab titanium hauv cov kabmob steel tsawg dua 6 × {{ 1}} thiab 15 × 10-6 raws li , txo cov ntsiab lus thiab qhov loj ntawm kev suav nrog hauv cov hlau, thiab txhim kho qhov sib xws ntawm kev faib khoom.
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02 Lub koom haum kho kom zoo thiab sib npaug
Los ntawm daim ntawv thov ntawm alloying tsim thiab tswj dov thiab tswj cov txheej txheem txias, cov uniformity ntawm inclusions thiab carbides yog ntxiv txhim kho, lub network thiab banded carbides raug txo thiab tshem tawm, qhov nruab nrab qhov loj me thiab qhov siab tshaj particle loj yog txo, thiab qhov nruab nrab loj ntawm carbides. yog tsawg dua Lub hom phiaj ntawm 1μm; ntxiv kom cov nplej loj ntawm cov qauv matrix, kom cov nplej loj ntawm cov kabmob steel yog ntxiv ua kom zoo dua.
03 Txo cov ntaub so ntswg uas tsis muaj qhov tsis zoo
Ntxiv mus, txo lub hauv paus porosity, central shrinkage kab noj hniav thiab lub hauv paus tivthaiv segregation nyob rau hauv cov kabmob steel, thiab txhim kho cov uniformity ntawm tsawg-magnification qauv.
04. Toughness ntawm bearing steel
Los ntawm cov txheej txheem tshiab alloying, kub dov txheej txheem optimization thiab kev kho cua sov txheej txheem kev tshawb fawb, lub toughness ntawm bearing steel yog txhim kho.
