1. Cov khoom tseem ceeb cuam tshuam rau kev sib tsoo txias
| Ntiag tug | S355J0WP Cov nqi raug | Qhov tseeb rau dabtsi yog khoov |
|---|---|---|
| Yield zog (re) | Ntau dua los yog sib npaug rau 355 mpa | Lub zog siab dua yuav tsum muaj ntau dua bending. |
| Lub zog tensile (RM) | 470-630 MPa | Txwv tsis pub tshaj plaws deformation ua ntej bacture. |
| Elongation (A₅) | Ntau dua los yog sib npaug rau 20% (tuab-nyob) | Ntau dua elongation txhim kho kev puas tsuaj. |
| Kev Cuam Tshuam | Ntau dua los yog sib luag rau 27 j ntawm -20℃(EN 10025-5) | Tseem ceeb rau kev khoov tsawg. |
2. Txias cov lus qhia txias
(A) kev ntaus nqi
Tsawg kawg nkaus khoov vojvoog:
RauS355j0wp, cov kev pom zoo kom loj dua Bend Radius feem ntau yog2 × rau 3 × cov khoom tuab(piv txwv li, 20 hli vojvoog rau 10 hli phaj).
Kev Khib Zog(piv txwv li, 1.5 × tuab tuab) tej zaum yuav ua tau tab sis yuav tsum tau kuaj vim muaj kev pheej hmoo ntawm thaj chaw tawg.
(B) Cov lus pom zoo
Lub xeev cov khoom siv:
Bent zoo tshaj plaws nyob rau hauvli qub lossis kub-dov(zam qhov brittleness los ntawm kev ua haujlwm txias).
Zam kev khoovUa ntej-ya davhlau(Patina yuav fim ntawm cov ntse khoov).
Qho so:
Chav chav kub kubyog qauv, tab sis hauv qab no 0 degree, ua ntej cua sov (100-150 degree) tej zaum yuav txo kev pheej hmoo txaus ntshai.
Lub tuam txhab:
Kev sivdu, sib npaug tuag tuagTxhawm rau tiv thaiv kev puas tsuaj saum npoo.
Lubrication yuav txo kev sib txhuam-ua rau tsis haum.
(C) Kev txiav txim siab tom qab
Kev ntxhov siab nyem: Tsis yog feem ntau xav tau rau S3555j0wp, tab sis tseem ceeb rau kev khoov heev.
Patina tsim: Cov av nkos yuav xeb kom nrawm dua thaum pib; Lub patina yuav ruaj khov rau lub sijhawm.
3. Cov peev xwm muaj peev xwm & Mitigation
| Kev twv | Kev kom | Lus teb |
|---|---|---|
| Ntug Nruag | Ntau heev deformation lossis ntse khoov. | Siv cov radii loj dua; anneal yog xav tau. |
| Nto qhov tsis xws luag | Cuab yeej lossis cov nplai oxide. | Polish chwv dej tsaws tsag Polish chaw; Siv cov yeeb yaj kiab tiv thaiv. |
| Txo corrosion tsis kam | Micro-nres los ntawm dabtsi yog khoov. | Zam kev khoov rau hauv cov cheeb tsam xeb (piv txwv li, ntug dej hiav txwv sib xyaw). |
