1. Cov khoom siv twg yog GB / T 712 FH32 Yeeb Nkab?
GB / T 712 FH32 yog qhov siab- lub zog marine qauv qauv (GB / {- Lub zog Hull steel). FH32 qhia txog cov txiaj ntsig zoo dua qub dua lossis muaj sib npaug rau 315 MPa, ua kom haum rau cov khoom lag luam tsis zoo thiab ua rau lub ntsej muag ua haujlwm.
2. Dab tsi yog cov ntawv thov tseem ceeb ntawm cov yeeb nkab steel?
FH32 yeeb nkab steel yog feem ntau siv nyob rau hauv lub nkoj ua haujlwm (links, thiab lwm yam. Nws yog tsim nyog tshwj xeeb rau tsawg - sov qhov chaw ib puag ncig (vim tias nws tswj hwm kev cuam tshuam zoo heev ntawm -40 degree.
3. Dab tsi yog qhov zoo ntawm FH32 piv rau cov khoom lag luam steel (xws li qib nyias nyias)? Lub zog siab: FH32 cov txiaj ntsig muaj zog (ntau dua lossis sib npaug ntawm 315 MPa) yog siab dua li ntawm qib ANDER (235 MPA), txo qhov hnyav.
Zoo heev qis - kub todlemness: optimized yob thiab txias txheej txheem, nws yog haum rau siv nyob rau hauv cov dej txias heev.
Zoo heev weldability: ib qho qis dua cov pa roj carbon sib npaug (CEV tsawg dua lossis sib npaug nrog 0.36%) Tsim kev pheej hmoo ntawm kev pheej hmoo ntawm kev tawg txias thaum vuam.
4. Yuav ua li cas ceev faj yuav tsum tau coj thaum ua thiab vuam fh32 steel yeeb nkab?
Preheating ua ntej vuam: preheating rau 100 {{-}} 150 qib raug pom zoo kom tsis txhob muaj hydrogen-inducts cracking.
Vuam cov khoom siv: siv qib e lossis ntau dua vuam rods (piv txwv li, aws E7018).
Kev tswj haujlwm txias: Zam kev ua haujlwm ntev dhau thiab ua annealing kom tshem tawm cov kev ntxhov siab uas tsim nyog thaum tsim nyog.
5. Yuav ua li cas yuav tsum FH32 cov yeeb nkab steel raug qhia thiab kuaj xyuas?
Cim tshuaj ntsuam xyuas: Cov yeeb nkab steel yuav tsum tau cim nrog "FH32," tus qauv siv (GB / T 712), thiab cov khoom lag luam.
Daim ntawv pov thawj ntawv pov thawj: Daim ntawv pov thawj khoom (MTC), suav nrog cov tshuaj muaj pes tsawg leeg, cov ntaub ntawv cov ntaub ntawv, thiab cuam tshuam rau cov ntaub ntawv (-40 Qib KV2 ntau dua lossis sib npaug nrog 34 J).
Thib peb {- kev xeem tog: spectroscopic tsom xam lossis ultrasonic sim siv los xyuas kom qhov uas tsis muaj kev cuam tshuam sab hauv.
