Ntau qhov tsis xws luag hauv cov txheej txheem forging ntawm cov kabmob rings:
Thaum lub sij hawm forging txheej txheem ntawm lub nplhaib bearing, vim qhov tsis xws luag ntawm cov kabmob steel cov khoom, cov txheej txheem forging, cov khoom siv thiab tib neeg cov yam ntxwv, lub nplhaib tawg, over-burning, kev nyuaj siab, forging folding thiab ntub cracking tshwm sim los ntawm qhov tsis xws luag, cov teeb meem no tuaj yeem ua rau cov kabmob puas. , thiab yuav cuam tshuam rau cov kabmob lub neej, ua rau muaj kev puas tsuaj thaum ntxov rau cov kabmob.
Cov nram qab no qhia ntau yam tsis xws luag hauv cov txheej txheem forging ntawm cov kabmob rings, vam tias yuav pab koj tiv thaiv ntxov.
1. Kev sib tsoo ntawm cov kabmob forgings tshwm sim los ntawm cov khoom siv raw
(1) Sab nraud txoj kab uas hla ntawm cov kabmob forging muaj qhov nkag mus. Yog vim li cas rau qhov tawg yog tias muaj qhov pom tseeb dov tawg ntawm qhov chaw ntawm cov kabmob steel bar. Hauv forging, tom qab cov kabmob steel bar uas muaj cov kab nrib pleb yog nias, cov kab nrib pleb nthuav dav ntxiv rau hauv cov duab.
(2) Cracks nyob rau hauv lub hauv paus ntawm cov bearing forgings. Tom qab cov forgings yog zes, muaj cov kab nrib pleb pom tseeb nyob rau hauv lub hauv paus ntawm lub nplhaib puab forgings. Qhov ntev ntawm qhov tawg yog 30 hli, suav txog li 3/4 ntawm txoj kab uas hla ntawm lub ferrule, qhov siab tshaj plaws yog 5 hli hauv zos, thiab qhov tob yog li 10 hli.
Lub ntsiab yog vim li cas rau qhov tsis xws luag yog hais tias muaj ib tug tawg nyob rau hauv lub hauv paus ntawm cov kabmob steel bar. Tom qab kub pickling ntawm bearing steel bar txiav qauv, muaj ib tug sib sib zog nqus tawg nrog ib tug ntev ntawm 10 hli thiab ib tug dav ntawm 1 hli, thiab cov tawg yog nkag mus. Tom qab cov khoom zoo li no nrog cov kab nrib pleb raug muab tso rau hauv kev tsim khoom, cov khoom tawg tau nthuav dav ntxiv tom qab forging.
(3) Tom qab kev ntsuas, cov khoom siv raw ntawm cov kabmob steel yuav tsum nruj me ntsis xyuas raws li kev tshuaj xyuas tshwj xeeb ntawm cov kabmob steel nkag mus rau hauv lub Hoobkas kom ntseeg tau tias cov kabmob tsim nyog tau muab tso rau hauv kev tsim thiab siv.
2. Overburning ntawm forgings
Cov qhov me me tau tawg rau ntawm qhov chaw ntawm lub nplhaib bearing forging tom qab tig. Lub metallographic microstructure tau oxidized thiab overburned. Lub ntsiab yog vim li cas rau qhov tsis xws luag yog hais tias yog hais tias lub cua sov kub ntawm lub bearing nplhaib tshaj lub sab sauv txwv ntawm cov txheej txheem kev cai thaum lub sij hawm forging, lub sij hawm tuav ntawm qhov kub thiab txias yog ntev heev, uas yuav ua rau overheating ntawm cov khoom, thiab nyob rau hauv loj heev zaum. , nws yuav overburned, ua rau cov hlau lis ciam teb yuav oxidized thiab tawg. Spiked qhov tsua. Cov tsos ntawm forged thiab burnt ferrule yog zoo li ib tug txiv kab ntxwv tev, nrog me me kab nrib pleb thiab ib tug tuab oxide nplai tawg rau ntawm nws. Vim tias qhov saum npoo ntawm lub ferrule tom qab forging yog them nrog oxide daim tawv nqaij, nws feem ntau tsis yooj yim mus nrhiav, thiab cov yam ntxwv tshaj li kub hnyiab tau tuaj yeem tshwm sim tom qab sib tsoo.
Kev ntsuas yuav tsum tau ua:
Cov kabmob steel cua sov installation yog nruab nrog peb-txoj kev sorting mechanism, uas tuaj yeem xaiv cov khoom tsis muaj cua sov thiab overheated. Tom qab peb-txoj kev sorting thiab installation, lub workpieces uas nyob rau hauv-rhuab (tsis muaj 1050 degree) raug xaiv, thiab cov txheej txheem forging yuav tsum nres ib txwm tom qab reheating rau qhov tso cai pib forging kub; cov workpieces uas overheated thiab over-burned (kub tshaj 1150 degree) yuav tsis tau reheated thiab muab tso rau siv. , yuav tsum tau muab tso rau hauv lub thawv tshwj xeeb uas muaj xim liab rau kev sib cais, thiab yuav tsum tau muab tshem tawm thiab muab pov tseg ua ntej kev hloov pauv kom ntseeg tau tias cov cua kub kub nyob hauv qhov xav tau.
3. Forging thiab folding
Thaum cov ferrule forgings yog remed thiab dov, lub dav hlau concave yog tob heev, tshaj qhov nyiaj sib tsoo, thiab yuav muaj qhov ntev arc-puab tawg ntawm lub dav hlau thaum lawv raug khawb. Qhov teeb meem no yog hu ua forging folding. Yog vim li cas rau qhov no yog tias ferrule tuaj yeem tsim los ntawm ob (lossis ntau dua) hlau convections thaum lub sij hawm forging txheej txheem; nws tseem tuaj yeem tsim los ntawm kev nrawm thiab loj ntawm cov hlau txav uas txav cov hlau hauv zos uas nyob ib sab, thiab ob qho tib si sib sau ua ke; Nws tuaj yeem tsim los ntawm cov hlau deformed yog tsim los ntawm kev khoov thiab rov qab; nws kuj tuaj yeem tsim los ntawm deforming ib feem ntawm cov hlau thiab raug nias rau hauv lwm qhov ntawm cov hlau. Folding muaj feem xyuam rau cov khoom siv raw thiab cov duab dawb paug, pwm tsim, tsim cov txheej txheem tsim, smoothness thiab forging xyaum.
4. Forging kev nyuaj siab
Sab hauv txoj kab uas hlaNINGBODAZ bearing nplhaib forging yog concave, uas yog tshwm sim los ntawm lub burr nyob rau saum npoo ntawm cov tuag vim hnav thaum lub sij hawm forging thiab reaming txheej txheem ntawm lub nplhaib, uas ua rau lub puab txoj kab uas hla ntawm lub nplhaib mus cuag cov tuag los tsim grooves tom qab reaming. Tom qab tig, qhov tsis xws luag muaj qee qhov kev nyuaj siab tob uas tsis raug tshem tawm tag nrho.
Kev ntsuas yuav tsum tau ua: nruj me ntsis tswj lub neej ntawm pwm, thiab kho lub neej ntawm pwm kom raws sijhawm kom tsis txhob muaj qhov tsis xws luag tom qab pwm hnav.
5. Forging ntub tawg
Muaj qhov pom tseeb linear, oblique thiab dendritic kab nrib pleb nyob rau sab nraud, lub ntsej muag kawg thiab chamfer ntawm DAZ bearing rings. Muaj qhov pom tseeb decarburization nyob ib ncig ntawm qhov tawg thiab tus Tsov tus tw ntawm qhov tawg yog bald, uas yog hu ua forging ntub tawg. Yog vim li cas yog tias tom qab forging thiab reaming ntawm lub ferrule tiav, qee cov ferrules ntsib cov dej hauv huab cua thaum lawv tseem nyob ntawm qhov kub thiab txias, ua rau ntub dej tawg.
Kev ntsuas yuav tsum tau ua: Ua ntej ua haujlwm txhua hnub, tshem tawm cov dej txias txias ntawm cov khoom siv reaming kom ntseeg tau tias tsis muaj dej nyob hauv huab cua. Lub ferrule yuav poob rau hauv dej los tsim ib qho ntub dej ntawm lub ferrule tom qab lub qhov yog remed.
