Nrum steel li qub yog cov hlau siv rau kev nrum hlau. Ib qho txhuas hlau nplaum. Cov cam khwb cia hlau tau muab faib ua cov cam khwb cia cov hlau, cam khwb cia cov hlau tsis tshua muaj hlau thiab cam khwb cia hlau tshwj xeeb. Cam khwb cia hlau yog ib hom hlau casting ua los ntawm txoj kev casting. Cam khwb cia steel yog tsuas yog siv los tsim cov khoom seem nrog cov duab uas nyuaj rau nyuaj thiab txiav, thiab xav tau lub zog siab thiab yas.
Forged steel yog hais txog forged cov khoom lag luam tsim los ntawm ntau yam forging thiab forging. Vim tias qhov zoo ntawm cov forged steel qhov chaw yog siab tshaj qhov ntawm cov hlau cam hauv qhov chaw, lawv tuaj yeem tiv taus kev cuam tshuam ntau dua, thiab lawv cov khoom yas, tawv thiab lwm yam khoom siv kuj tseem siab dua qhov cam hlau qhov chaw, yog li txhua qhov tseem ceeb cov tshuab yuav tsum forged steel qhov chaw.
Qhov sib txawv ntawm forged steel valve thiab cam khwb cia steel valve:
Forged steel li qub yog qhov zoo dua li cov cam khwb cia steel li qub, tuaj yeem tiv taus kev cuam tshuam loj, thiab muaj cov cuab yeej siab dua xws li plasticity thiab toughness tshaj nrum steel. Txawm li cas los xij, txoj kab uas hla nominal yog me me, feem ntau tsawg dua DN50. Cov ntsuas siab ntawm lub pob valve yog qhov tsawg, thiab cov ntawv tshaj tawm feem ntau yog PN16, PN25, PN40 thiab 150LB-900LB. Forged steel valve qib: PN100, PN160, PN320, 1500LB-4500LB, thiab lwm yam. Cam khwb cia hlau feem ntau yog siv los tsim cov khoom seem hauv cov qauv nyuaj, nyuaj rau kev sib tsoo thiab txiav, thiab xav tau lub zog siab thiab yas.
Casting yog kua tsim, thiab forging yog txheej txheem yas deformation. Lub forged workpiece txhim kho cov qauv sab hauv ntawm lub koom haum, muab cov yam ntxwv ntawm cov tshuab tsis zoo thiab cov nplaim hluav taws xob tsis zoo. Cov haujlwm ua haujlwm uas xav tau kev sib zog yuav tsum ua kom tiav. Casting yuav ua rau cov kev sib cais thiab cov qauv hauv lub cev tsis xws luag. Ntawm chav kawm, casting muaj lwm yam zoo: qhov zoo ntawm txoj kev ua cov pawg ua haujlwmyog tias nws tsis yooj yim los qhib lub pwm rau forging, thiab casting yog siv.