1. Melting thiab tempering
Ntxiv cov ntaub ntawv raw (khoom hlau, hlau molten, xa rov qab, thiab lwm yam) rau hauv qhov cub induction thiab kho nws cov muaj pes tsawg leeg. Thaum muaj pes tsawg leeg ua tau raws li cov txheej txheem, ntxiv cov quenched thiab tempered molten hlau rau hauv spheroidizing tus neeg sawv cev rau spheroidizing kev kho kom tau raws li cov txheej txheem.
2. Kev kho cua sov
Cov kav dej hlau ua los ntawm centrifugal casting muaj ntau cov cementite hauv cov qauv metallographic, yog li cov khoom siv ntawm cov kav hlau tsis tuaj yeem ua tau raws li ISO2531 tus qauv. Vim li no, nws yog ib qho tsim nyog yuav tsum tau muab cov yeeb nkab hlau txuas ntxiv thiab hloov nws cov qauv yooj yim rau hauv ferrite-based ductile hlau yeeb nkab fittings nrog cementite kom nws cov kev ua tau zoo raws li ISO2531 tus qauv.
3. Centrifugal casting
Nruab lub tswb nrov ntawm lub centrifuge, ncuav lub spheroidized tsim nyog molten hlau rau hauv lub pob kom muaj nuj nqis, teem tus nqi ntawm inoculant ntxiv, tus nqi ntawm cov yeeb nkab pwm hmoov ntxiv, kev sib hloov ceev ntawm lub centrifuge, taug kev ceev thiab turnover ceev ntawm lub pob khoom ntau raws li qhov yuav tsum tau ua ntawm cov txheej txheem kev cai. Lub molten hlau yog poured rau hauv lub rotating yeeb nkab pwm nrog lub turnover ntawm lub quantitative pob thiab taug kev ntawm lub centrifuge, thiab solidified rau hauv ib tug yeeb nkab. Cov yeeb nkab yog rub tawm ntawm pwm los ntawm cov yeeb nkab rub tawm thiab xa mus rau chav kho cua sov.
4. Spheroidization
Thaum muaj pes tsawg leeg thiab kub ntawm cov hlau molten ua tau raws li cov txheej txheem, tus neeg sawv cev spheroidizing yog ntxiv rau cov hlau molten kom cov flake graphite hauv cov hlau molten ua kheej kheej graphite, thiab xa mus rau centrifugal casting department rau pouring.
5. Zinc txau
Txhawm rau ntxiv dag zog rau kev ua haujlwm ntawm cov kav hlau hlau, zinc txau kev kho yuav tsum tau nqa tawm rau sab nrauv ntawm cov kav hlau hlau. Txhawm rau txhim kho qhov zoo ntawm zinc txau, cov txiaj ntsig zoo tshaj plaws yog tshuaj tsuag zinc thaum cov yeeb nkab lub cev tseem nyob ntawm qhov kub thiab txias tom qab ua tiav cov txheej txheem kho cua sov.
6. Cov cement hauv ob sab phlu
Txhawm rau kom muaj kev nyab xeeb ntawm cov kav dej ntawm cov kav dej hlau, tiv thaiv qhov ntsuas ntawm cov kav dej sab hauv ntawm cov kav dej hlau, ua kom cov dej xa tawm, thiab txo cov kev pab cuam lub neej ntawm cov yeeb nkab network, cov kav dej xa dej yuav tsum tau ua los ntawm cov cement. . Cov ntaub pua tsev yuav tsum ua raws li ISO2531 thiab ISO4179 cov qauv.
7. Rounding thiab polishing
Txhawm rau kom paub meej qhov zoo ntawm cov yeeb nkab hlau yeeb nkab thiab qhov loj ntawm lub qhov (socket), lub qhov (socket) thiab phab ntsa sab hauv ntawm cov yeeb nkab hlau yuav tsum tau polished thiab ntxuav.
8. Hydrostatic kuaj
Txhawm rau kom ntseeg tau tias ex-Factory zoo ntawm cov kav hlau kav thiab kev teeb tsa kev ua haujlwm ntawm cov yeeb nkab network thaum siv, cov kav dej hlau yuav tsum raug kuaj xyuas hydraulic thiab tshuaj xyuas raws li cov qauv teev tseg hauv ISO2531.
9. Sab nrauv txheej thiab ntim
Txhawm rau tiv thaiv cov yeeb nkab hlau los ntawm kev corroded underground thiab ncua lub neej kev pab cuam ntawm cov yeeb nkab network, sab nrauv ntawm cov yeeb nkab hlau yuav tsum tau coated nrog ib txheej ntawm asphalt xim, thiab ces ntim thiab muab tso rau hauv cia.
