"txias ua hauj lwm hardening" txhais li cas nyob rau hauv txias -rolled round bar?
Nws hais txog qhov tshwm sim uas cov hlau nplej deform thaum lub sij hawm dov, ua rau muaj zog thiab hardness, tab sis txo plasticity thiab toughness.
Intermediate annealing yog dab tsi?
Nws yog ib qho txheej txheem uas deformation ntau dhau (ntau tshaj 20% -60% ntawm tag nrho cov deformation) yog ua tiav los ntawm cua sov ntawm 650-850℃los txo kev ntxhov siab thiab rov ua kom cov yas.
Txheej txheem thiab ntau lawm
Dab tsi yog cov kauj ruam tseem ceeb hauv qhov txias - dov puag ncig bar ntau lawm?
Kev npaj Billet → Rolling / kos duab (tswj deformation ib kis kom tsawg dua lossis sib npaug li 15%) → Lubrication thiab txias → Intermediate annealing (raws li xav tau) → Cov khoom tiav txias thiab tuav.
Vim li cas thiaj tsim nyog lubrication thaum dov?
Nws txo cov kev sib txhuam ntawm cov yob thiab cov pob zeb, tshem tawm cov cua sov, txo qhov hnav, thiab ua kom zoo zoo. Feem ntau siv emulsions lossis ntxhia roj.
Dab tsi yog qhov txawv ntawm qhov txias - dov cov yam ntxwv ntawm cov hlau stainless sib txawv?
Austenite (304): Kev ua haujlwm hnyav, yuav tsum tau ua kom nrawm nrawm;
Ferrite (430): Tsawg℃ntawm hardening, tso cai rau kom muaj zog deformation;
Martensite (410): Cov yas tsis zoo, yuav tsum muaj kev tswj xyuas nruj ntawm deformation Tsawg dua lossis sib npaug li 10%.