HNoj tshuajKev ua
Cov Khoom Siv Ntawm Bearings: Cov kabmob hlau:
Cov kabmob hlau yog hais txog cov hlau siv los ua pob, cov menyuam cov menyuam, thiab cov kabmob sib tw (sab hauv thiab sab nraud). Bearing cov hlau muaj cov siab thiab hnav tsis zoo thiab hnav tsis kam, nrog rau kev txwv ywj pheej. Cov kev sib xyaw ntawm cov tshuaj lom neeg sib xyaw ua ke ntawm cov kabmob hlau, cov ntsiab lus thiab faib ntawm cov tsis muaj xim hlau suav, thiab faib cov carbides yog nruj heev. Nws yog ib qho ntawm cov hlua dav hlau feem ntau cov hlau hauv txhua qhov hlau ntau lawm. Cov kabmob steel tau muab faib ua rau cov pawg: cov pa hluav taws xob rub cov kabmob hlau, cov kab mob carburfulized steel, thiab cov kub coj ua hlau, thiab anti-sib nqus cov kabmob hlau.
Qhov Tseem Ceeb ntawm Cov Kabmob Kho Mob:
Lub hom phiaj ntawm kev kho cua sov ntawm bearings yog hloov lub microstructure thiab cov khoom ntawm cov khoom siv tshuab, cov khoom siv lub cev, tshuaj lom neeg thiab lwm yam ntxwv. Tshwj xeeb, lub hom phiaj ntawm kev kho cua sov ntawm cov kabmob steel tom qab nws yog ua rau cov kabmob sib txuas ntxiv nrog cov hauv qab no:
1.Txhim kho lub hardness ntawm bearings
Thaum lub sij hawm siv cov kabmob dov, lawv yuav tsum tau withstand heev axial loads thiab radial loads, yog li lub hardness ntawm cov hlau yuav tsum muaj siab. Vim tias cov kabmob cov khoom siv yog quenched lossis tempered ntawm kev kub ntxhov thaum sov, lub ntsej muag loj, yog li ua tiav lub hom phiaj ntawm kev ntxiv dag zog rau cov khoom siv. Feem ntau, lub hardness ntawm cov kev coj tom qab quenching kev kho yog ntau tshaj 20% siab dua li ntawm qhov tsis kho ib qho.
2.Txhim khuLub zog ntawm cov kabmob
Cov kev chwv tau xav kom tiv thaiv ntau yam kev cuam tshuam, kev co thiab thauj khoom thaum siv. Lub zog ntawm cov kev coj ua tom qab kev kho cua sov yog qhov tseem txhim kho. Piv nrog tsis kho bearings, cov khau tshav kub muaj zog tensile lub zog thiab kev cuam tshuam rau deform lossis kev puas tsuaj thaum siv, thiab muaj zog durability.
3Cov. Txhim kho cov kev coj tsis kam ntawm cov kabmob
Cov hnav tsis kam ntawm cov kabmob yog ib qho ntawm nws cov khoom tseem ceeb. Kev kho cua sov tuaj yeem txhim kho cov coj tsis kam ntawm cov kabmob, txo tus nqi hnav, zoo dua saib xyuas cov duab thiab qhov loj me thaum kev sib txhuam, thiab txo cov kev hnav thiab qaug zog. Yog li ntawd, lub hwj chim lub neej tom qab kev kho cua sov yog qhov ntev dua thiab cov kev pabcuam lub neej muaj qhov ruaj khov.
4.Txhim kho corrosion tsis kam
Thaum siv, cov kabmob yuav corroded thiab oxidized vim muaj cov roj thiab ib puag ncig, uas muaj cov hmoov ntawm cov kabmob. Tom qab kev kho cua sov, cov oxides thiab lwm cov sib txawv ntawm cov sib txawv ntawm cov kabmob yog tshem tawm, thiab cov kabmob cuam tshuam ntawm cov kabmob tau txhim kho. Nyob rau tib lub sijhawm, qee yam tsis xws luag thiab cov kab nrib pleb ntawm cov kabmob saum npoo av tau tseem tau txhim kho, muaj ntau dua qhov ua tiav thiab ntom ntom.
HNoj cov kauj ruam kho:
Lub cua sov kub ntawm normating yog 860-880 degree, lub sij hawm tuav tau yog}}} mov yooj yim yog huab cua txias;
Lub cua sov kub ntawm quenching yog 820-840 degree, lub sij hawm tuav lub sij hawm yog {}} mov yooj yim yog dej txias;
Qhov cua kub kub ntawm kev kub siab yog 560-590 degree, lub sij hawm tuav lub sij hawm yog {}} mov yooj yim yog huab cua txias.
Nruj kev tswj hwm ntawm cov txheej txheem no yog tus yuam sij los ua kom ntseeg tau cov nyhuv ntawm kev kho cua sov
Hauv cov ntsiab lus, kev kho cua sov yog qhov tseem ceeb rau cov kabmob. Los ntawm cov txheej txheem kho cua sov kom tsim nyog, cov cuab yeej siv tshuab ntawm bearings xws li bearings, thiab lawv cov kev ua haujlwm ruaj khov tuaj yeem txuas ntxiv, cov haujlwm ruaj khov nyob hauv ntau yam kev ua haujlwm nyuaj. Nyob rau tib lub sijhawm, kev kho cua sov kuj tuaj yeem ua kom zoo dua lub koom haum cov kabmob, muab cov haujlwm muaj zog zoo rau cov cuab yeej siv cov tshuab khoom siv.
