1. Forged steel yog cov khoom tseem ceeb rau kev ua ib lub iav, vim nws muaj lub zog siab thiab toughness. Txoj kev dav dav tuaj yeem muab faib ua cov hniav mos thiab cov hniav tawv.
Feem ntau, qhov kev xaiv ntawm cov hniav mos yuav tsum tau siv rau cov iav txiav tom qab kev kho cua sov. Txhawm rau kom yooj yim txiav cov iav, lub iav txiav cov cuab yeej yuav tsis hnav thiab ua blunt sai. Cov iav no yog txiav tom qab normalizing thiab tempering kho. Rau cov ntawv thov tseem ceeb, cov hniav tawv tawv tuaj yeem xaiv tau, thiab kev kho qhov tawv nqaij yuav tsum tau ua tom qab txiav cov hniav. Cov txheej txheem kev kho cua sov muaj xws li deg hardening, carburizing thiab nitriding. Cov hniav kho hniav muaj qhov nyuaj siab, zoo toughness, siab bearing muaj peev xwm thiab zoo hnav tsis kam.
2. Cam khwb cia hlau muaj lub zog siab thiab zoo hnav tsis kam, tab sis nws yuav tsum tau normalized los yog annealed vim muaj kev ntxhov siab sab hauv thaum lub sij hawm casting. Cam khwb cia hlau feem ntau yog siv rau cov iav uas loj dhau los ua forged.
3. Cam khwb cia hlau yog nkig, nrog rau cov tsis zoo cuam tshuam thiab hnav tsis kam, tab sis nws yog ib qho yooj yim rau txheej txheem los ntawm casting thiab txiav tshuab. Yog li ntawd, cam khwb cia hlau feem ntau yog siv rau hauv qhib iav kis tau tus mob nrog tsawg ceev, nruab nrab load, tsis muaj kev cuam tshuam thiab tsis muaj kev vibration. Cov cuab yeej cuab tam thiab kev cuam tshuam ntawm nodular cam khwb cia hlau yog ntau dua li ntawm grey cam khwb cia hlau, yog li nws yog siv ntau thiab ntau dua.
