Ntau hom caij nplooj ntoos hlav steel hlau muaj ntau hom kev tsim ntau yam, thiab cov cwj pwm uas tib neeg yog tias lawv xav tau lub zog, kev siab tawv thiab kev ua haujlwm zoo thaum caij nplooj ntoos hlav.
Cov txheej txheem ua ntau lub caij nplooj ntoos hlav steel hlau yog raws li nram no:
Cov txheej txheem ntawm txoj hlua hlau hlau hlau: (hlau) xaim hlau - nta kho - daim duab (daim hlau xaim siv tau qhov no)
Taug txhuas lub caij nplooj ntoos hlav steel hlau: txhuas da dej daig hauv qhov nruab nrab ntawm cov hlau qes los yog daim duab txias, tom qab ntawd kev kho thiab xaim hlau.
Galvanized caij nplooj ntoos hlav steel hlau: feem ntau yog qhov loj me ntawm kub plating los electroplating, tab sis kuj nrog xaim qws laim, kub dip tom qab txias daim duab mus rau qhov loj me me.
Roj tempered caij nplooj ntoos hlav steel hlau: raws li qhov xav tau ntawm kev siv cov hlau los yog hlau hlau, qhov chaw kho thiab kos rau qhov loj me me tom qab quenching thiab tempering kho, txoj kev no nyob rau hauv cov hlau hlau nrog ntau lub tsheb raug tshem tawm caij nplooj ntoos hlav thiab lub caij nplooj ntoos hlav, ntawm thaum kawg, tuaj yeem siv caij nyoog zoo caij nplooj ntoos hlav.
Kev kho qhov chaw: feem ntau siv cov kua qaub phosphating, tshem tawm ntawm oxide ntawv, tsim phosphating film; kuj muaj tsawg tus ntawm cov khoom siv siv los siv nrog. Lub hom phiaj yog ua kom tau raws li qhov yuav tsum tau ua ntawm kev thaij txias thiab tau qhov dej saum npoo. Lub caij nplooj ntoos hlav xaj yuav tsum muaj txoj sia nyob qaug zog, xws li lub caij nplooj ntoos hlav valve, hlau qws rau kev txhim kho cov tshuaj tua kabmob, txo qhov chaw tsis muaj teeb meem, yog tias cov hlau yuav sib tsoo hauv daim pib, tab sis kuj siv los txo qhov tsis xws luag.
Teeb duab: qhov zoo ntawm kev kos duab ntawm kev kos duab tiav ntawm kev ua tiav ntawm qhov khoom, feem ntau siv qhov nqes zis tag nrho ntawm kwv yees li ntawm 90% ntawm qhov loj (saib qhov txo qhov txo nqi) channel thiab txo kev txo tsawg zog (li 10% -20 %), thiaj li ua kom muaj lub zog ntawm cov khoom. Rau siab lub zog caij nplooj ntoos hlav steel hlau, nws yog ib qhov tsim nyog los tswj kev tawm qhov kub ntawm txhua steel hlau nyob rau hauv 150 degrees thaum lub caij kev kos, thiaj li tiv thaiv cov hlau xaim los ntawm rov qab torsion vim strain aging, uas yog lub ntsiab defect ntawm hlau hlau seem. Yog li, nws yog ib qho tsim nyog kom muaj lubrication zoo thiab txaus cua txias thaum lub sijhawm, thiab txo qhov kub sawv ntawm cov hlau hlau los ntawm kev siv cov me me kom txo cov nqi thiab kos duab.
Kev kho cua sov: Lub caij nplooj ntoos hlav steel hlau feem ntau yog siv cov hmoov txhuam da dej ntawm cov pa roj carbon dioxide, tuaj yeem ua pearlite (sorbite), zoo rau kev ua kom pom kev sib sib zog nqus thiab kev ua tiav ntawm lub caij nplooj ntoos hlav, , tsuas yog qee lub me me ntawm daim ntawv thov xwb. Cov hlau hlau hlau yog feem ntau kho los ntawm kev txheeb ze, thiaj li hais tias cov microstructure yog tsim rau kev kos duab deformation. Kev kho cua kub ntawm cov hlau tsis xeb yog kho los ntawm cov tshuaj tov, thiab lub hom phiaj yog los txhim kho tus qauv kom tau raws li qhov xav tau ntawm daim duab. Cov txheej txheem roj quenching yog siv nyob rau hauv cov hlau tiav hlau. Cov cua kub cua lossis cua sov thiab cua sov cua sov cua sov yuav raug siv los ua kom sov lub xaim hlau mus rau qhov kub thiab txias kom ntev li ib lub sijhawm thiab tom qab ntawd kub kub kub tom qab quenching. Txawm hais tias lub npe hu ua roj quenching, dej quenching yog siv los yog dej quenching nrog cov khoom siv polymer.
