Thaum uaTXIAS KHWlossisKev Sib Tw KubsaumQ550NHERING STEEL, cov kev ceev faj hauv qab no yuav tsum tau coj los tswj nws cov khoom siv neeg kho mob thiab corrosion tsis kam:
1. Dabtsi yog khoov ceev faj
Tsawg kawg nkaus khoov vojvoog:
Feem ntauNtau dua los yog sib npaug rau 2 × Cov Khoom Thickness(rau daim hlau<16mm). Larger radii reduce cracking risk.
Khoom Siv Khoom Mob:
Nyiamli qub los yog tmcp -} khoQ550nh rau kev du dua zoo dua.
Preheating (yog xav tau):
For thick plates (>20mm) lossis nruj nreem, preheat rau100-150 degreekom tsis txhob tawg.
Zam dhau -} khoov:
Ntau yam deformation tuaj yeem ua rau microcracks, txo qis kev ua neej muaj sia.
2. Kub tswj hwm kev ceev faj
Qhov ntsuas kub ntau:
850-950 Qib(Zoo rau kev sib sau yam tsis muaj cov qoob loo coarsening).
Zam dhau1100 degree(kev pheej hmoo ntawm kev sib cav ntau dhau thiab decarburization).
Tswj Txias Tswj:
Cua txias yog txheem; Zam kev tso dej quenching (tej zaum yuav ua rau muaj kev ntxhov siab ntau dua).
Ncej - miveing cua sov kev kho:
Rau qhov tseem ceeb,normalizing (880-920℃+ cua txias)restores microstructure.
3. VUAM CUAM TOM QAB
Txias -}} tsim thaj chaw:
Anneal (yog ua haujlwm hnyav heev) ua ntej vuam los daws kev ntxhov siab.
Kub -}} tsim thaj chaw:
Nco ntsoov qhov kub poob qis dua300 Degreeua ntej vuam vuam kom tsis txhob muaj taub hau siab.
4. Corrosion Resistance
Saib:
Tshem cov zeb nplai / Oxide txheej Post - sib sau (sandblasting nyiam).
Zam kev paug:
Tiv thaiv cov roj, roj, lossis cov nyiaj tooj liab uas cuam tshuam patina tsim.
5. Cov Qauv & Kev Ntsuas
Raws qabGB / T 4171Rau post - mive mectical kev ntsuam xyuas.
CojCharpy Qhov Kev NtsuasNtawm kev pab kub (yog tias tsis tshua muaj - temp siv).
