Galvanized caij nplooj ntoos hlav steel hlau tshuab
Galvanized caij nplooj ntoos hlav steel hlau:feem ntau kub-dip galvanized los yog electroplated raws li qhov loj me, los yog pickled los ntawm hlau, kub-dip thiab txias- kos rau qhov loj me.
Daim duab caij nplooj ntoos hlav steel hlau txheej txheem:(steel) kos duab-kev kho saum npoo- kos duab (tuaj yeem siv rau kev xaim) Lead quenching caij nplooj ntoos hlav steel hlau: txhuas da dej quenching nyob rau hauv hlau loj los yog txias kos duab nruab nrab specifications, ces nto kho thiab kos duab.
Roj quenching caij nplooj ntoos hlav steel hlau:carbon steel los yog hlau alloy hlau tuaj yeem xaiv raws li qhov xav tau, txias kos kom tiav qhov loj me tom qab kev kho deg, thiab tom qab ntawd tempered. Cov txheej txheem no tsuas yog siv rau lub tsheb ncua kev kawm ntawv thiab lub caij nplooj ntoo hlav steel hlau. Tau kawg, nws kuj siv tau.
Kev kho deg:Pickling thiab phosphating feem ntau yog siv los tshem tawm cov hlau oxide nplai thiab tsim cov phosphating zaj duab xis. Qee tus neeg kuj siv txoj kev siv tshuab. Lub hom phiaj yog ua kom tau raws li qhov yuav tsum tau ua ntawm cov txheej txheem kos duab txias thiab tau txais ib qho chaw du. Rau cov xov hlau caij nplooj ntoos hlav uas xav tau lub neej qaug zog, xws li lub caij nplooj ntoos hlav valve, lawv yuav tsum tau muab tshem tawm kom txo tau qhov tsis xws luag. Yog tias lub zeb zeb tuaj yeem kho lub pob zeb, nws tseem yuav pab txo qhov tsis xws luag.
Hlau kos duab:Cov txheej txheem kos duab tiav ntawm cov khoom tiav muaj kev cuam tshuam zoo rau kev ua haujlwm ntawm cov khoom. Feem ntau hais lus, txhawm rau txhawm rau ua kom lub zog ntawm cov khoom lag luam, tag nrho tus nqi txo (qhov txo qis hauv cheeb tsam) yog qhov loj, txog 90%, thiab lub qhov qhov txo tus nqi yog me me, txog 10%-20%. Rau siab- lub zog caij nplooj ntoos hlav steel hlau, qhov hluav taws xob kub ntawm txhua lub hlau hlau yuav tsum tau tswj qis dua 150℃kom tiv thaiv cov hlau hlau los ntawm kev sib tw thiab deformed vim kev laus laus. Txoj kev laus laus yog qhov tsis xws luag uas ua rau cov hlau xaim raug tshem tawm. Yog li ntawd, zoo lubrication thiab txaus txias yog tsim nyog thaum lub sij hawm daim duab txheej txheem. Me me dhau-dhau tus nqi thiab kos duab nrawm pab txo qhov kub thiab txias ntawm cov hlau hlau.
Kev kho cua sov:Carbon steel caij nplooj ntoos hlav hlau feem ntau yog quenched nyob rau hauv ib tug txhuas da dej kom tau ib tug zoo pearlite qauv (soxite), uas yog zoo los txhim kho cov duab kos duab thiab lub caij nplooj ntoos hlav kev ua tau zoo. Lwm cov txheej txheem ntawm cov hlau lead da dej yog tseem tsis tau fluidized, tsuas yog nyob rau hauv ib co me me txoj kab uas hla daim ntaub ntawv. Alloy steel hlau yog feem ntau annealed thiab kho cua sov kom hloov nws cov qauv rau kos duab deformation. Kev kho cua sov ntawm cov hlau tsis muaj steel hlau yog cov khoom sib tov, nrog lub hom phiaj ntawm kev txhim kho cov qauv kom tau raws li qhov xav tau ntawm cov hlau kos duab. Cov hlau tiav yog roj quenched. Cov hlau yog rhuab mus rau austenitizing kub rau ib lub sij hawm ntawm induction cua sov los yog roj los yog roj cua sov rauv. Tom qab quenching, nws yog tempered ntawm ib tug nruab nrab kub. Txawm hais tias nominally hu ua roj quenching, nws yog cov dej quenching lossis dej quenching thiab cov ntaub ntawv polymer.
