Ua ntej,cov kabmob zoocov kav hlau tau npaj, thiab tom qab ntawd cov kav hlau tau ua tiav rau hauv cov nplhaib bearing meej.
Kauj Ruam 1: Kev npaj cov kav hlau (los ntawm cov kav hlau mus rau cov kav hlau tshwj xeeb)
Cov kav hlau siv raukev tsim khoomCov nplhaib tsis yog cov kav hlau ib txwm tab sis tshwj xeeb npaj cov kav hlau tsis muaj seamless. Cov txheej txheem tsim khoom tseem ceeb yog "xuas nrig + dov txias (kos duab)".
Cov txheej txheem no yooj yim to taub li no:
Kev Ua Kub thiab Xuas: Ua kom cov hlau bearing (xws li GCr15) kub txog 1100 ° C - 1180 ° C, tom qab ntawd xuas nws rau hauv lub raj "flow tube" uas khoob.
Txias thiab annealing: Tom qab xuas nrig, txias nws sai sai thiab tom qab ntawd ua annealing (spheroidizing annealing) kom mos cov hlau thiab ua kom zoo dua cov qauv sab hauv, npaj rau kev ua txias tom ntej.
Kev dov txias thiab kev kos duab txias: Los ntawm ntau qhov kev dov txias thiab kev kos duab txias, cov khoom siv yeeb nkab raug ua tiav raws li qhov loj me. Cov txheej txheem no yuav suav nrog kev txo kev ntxhov siab nyob nruab nrab.
Kev kho ua ntej: Lub raj hlau raug ntxuav kua qaub thiab phosphating kho kom tshem tawm cov oxides saum npoo thiab tsim cov txheej roj nplua nyeem.
Kev kho cua sov ntawm cov khoom tiav lawm: Thaum kawg, cov khoom tiav lawm yuav raug kho cua sov kom tau qhov loj me thiab cov kav hlau uas ua tau raws li kev ua tau zoo.
Kauj Ruam 2: Kev tsim thiab kev ua tiav ntawm cov nplhaib (los ntawm cov kav hlau mus rau cov nplhaib tiav)
Nrog cov kav hlau zoo, cov nplhaib tuaj yeem tsim tau. Tam sim no, muaj ntau txoj hauv kev tsim cov tub ntxhais:
1. Tig txoj kev ua
Txheej Txheem: Qhov no yog txoj kev ncaj qha tshaj plaws. Txiav lub raj hlau ua tej daim me me (txiav), thiab tom qab ntawd siv lub tshuab CNC los ua qhov tig los ua txhua yam qauv xws li cov nplhaib sab hauv thiab sab nraud, cov kab sib tw, cov chamfers, thiab lwm yam.
Qhov Zoo: Cov txheej txheem yooj yim thiab ncaj qha, tab sis nws pov tseg ntau yam khoom siv thiab muaj kev ua haujlwm tsawg.
2. Kev tsim cov khoom siv dov txias
Txheej Txheem: Qhov no yog ib qho thev naus laus zis ua tiav qib siab uas tsis muaj chip. Muab cov hlau txiav ua lub nplhaib rau hauv lub tshuab dov txias thiab thaum dov, cov hlau yuav dhau los ua cov yas, maj mam nthuav dav lub cheeb, txo cov phab ntsa tuab, thiab tsim cov duab ntawm txoj kev sib tw.
Cov Zoo: Kev Txuag Khoom Siv: Tus nqi siv cov khoom siv tuaj yeem nce ntxiv ntau los ntawm kev tig ib txwm muaj 44% txog 55% - 75%.
Kev ua tau zoo siab: Nws tuaj yeem txhim kho cov qauv sab hauv ntawm cov hlau, ua rau cov khoom ntom thiab ruaj khov dua.
Kev ua haujlwm siab: Qhov ceev ntawm kev ua tiav yog ceev, thiab qhov nyiaj pub dawb tom qab ntawd yog me me.
3. Txias (sov) extrusion tsim
Txheej Txheem: Nyob rau hauv chav tsev kub lossis me ntsis siab dua chav tsev kub, siv lub tshuab nias kom extrude lub raj billet hauv pwm.
Cov Zoo: Haum rau cov hom nplhaib tshwj xeeb thiab kuj yog ib qho txheej txheem ua haujlwm tau zoo thiab txuag khoom siv.
Txawm siv txoj kev tsim twg los xij, cov nplhaib uas tshwm sim tseem yuav tsum tau ua ntau yam kev ua tiav tom qab:
Kev Kho Mob Kub: Ua kom quenching thiab tempering kom muab lub nplhaib siab hardness thiab hnav tsis kam.
Kev ua cov txheej txheem milling: Ua kom raug milling rau ntawm cov khoom tseem ceeb (xws li sab hauv thiab sab nraud voj voog, qhov kawg ntsej muag, raceways) kom ua tau raws li qhov yuav tsum tau ua tiav kawg.
Kev Tshuaj Xyuas thiab Tshawb Pom Qhov Tsis Zoo: Siv cov txheej txheem tshawb pom qhov tsis zoo ntawm cov khoom sib nqus lossis cov txheej txheem tshawb pom qhov tsis zoo ntawm eddy tam sim no los xyuas seb cov khoom puas muaj qhov tawg lossis lwm yam tsis zoo.
Kev Ntxuav thiab sib dhos: Thaum kawg, ua kev ntxuav thiab demagnetization, thiab cov nplhaib tsim nyog tuaj yeem nkag mus rau hauv cov txheej txheem sib dhos.
Cov txheej txheem xaus: Rau kev tsim cov bearings nruab nrab loj, cov txheej txheem nthuav dav txias dov yog nyiam vim nws qhov ua tau zoo, txuag khoom siv, thiab kev ua tau zoo. Rau qee qhov loj, cov qauv nyuaj, lossis cov nplhaib me me, cov txheej txheem tig ib txwm tseem siv. Peb cov bearings VPN siv cov hlau bearing, uas yog GCr15 (high-carbon chromium bearing steel), thiab dhau los ntawm kev kho cua sov martensitic rau kev ua tiav. Cov retainers tuaj yeem nitrided, tab sis cov retainers bearing ib txwm tsis tau dhau los ntawm kev kho nitriding. Cov txheej txheem VPN bearing yeej ua kom muaj kev ncaj ncees ntawm cov txheej txheem khoom, yog li ua kom ntseeg tau qhov zoo ntawm cov khoom siv raw mus rau cov khoom kawg.