1. Qhov tseem ceeb sib txawv hauv huab cua tsis kam
| Sib piv Dimension | Kub-Rolled Weathering Steel Phaj | Txias-Rolled Weathering Steel Phaj |
|---|---|---|
| Surface Texture & Patina Nucleation | Rough nto nrog ntujzeb nplai(ib txheej nyias hlau oxide tsim thaum kub dov). Kev ntxhib los mos muab ntau qhov chaw nucleation rau kev tsim patina, tso cai rau qhov ntom ntom, tiv thaiv patina tsim sai thiab sib npaug hauv qhov chaw sab nraum zoov. | Smooth, huv si nto (tsis muaj zeb nplai- tshem tawm thaum lub sij hawm pickling ua ntej txias dov). Qhov kev ntxhib los mos txo qhov chaw nucleation, ua rau qeeb ntawm qhov pib patina tsim tus nqi; patina txheej yuav nyias nyias thiab tsis sib xws nyob rau theem pib. |
| Patina Maturation Ceev | Fast: Ntuj patina matures (mus txog qhov pom kev tiv thaiv tuab ntawm 0.08-0.15 hli) hauv6–12 lub hlisnyob rau hauv ib puag ncig humid. | Slow: Ntuj patina maturation yuav siv sij hawm12–24 lub hlisnyob rau tib qhov chaw; Thawj txheej xeb yog qhov ua rau tsis sib xws (lub teeb me ntsis lossis nyias qhov chaw). |
| Ntev -Lub Sij Hawm Corrosion Resistance | Raws li: Thaum lub patina matures, nws corrosion kuj yogsib npaug rau txias- dov daim hlau-cov ntsiab lus tseem ceeb ntawm cov hlau nplaum ua kom cov patina qhov ntom ntom thiab adhesion. | Raws li: Tom qab tag nrho cov patina maturation, cov nyhuv tiv thaiv sib tw kub - dov daim hlau; lub ntsej muag du tsis cuam tshuam rau kev ua haujlwm ntev -. |
| Susceptibility rau Early Corrosion | Tsawg: Lub nplai zeb ua raws li "precursor" rau patina, txo qhov kev pheej hmoo ntawm cov pitting hauv zos thaum ntxov. | me ntsis siab dua: Qhov saum npoo du yog feem ntau yuav ntxiab ya raws hauv me me crevices (xws li, los ntawm kev khawb), ua rau me me hauv zos xeb ua ntej patina matures. |
2. Keeb kwm ntawm qhov txawv
Nto Roughness: Kub- dov daim hlau muaj qhov ntxhib, tsis sib xws uas txhawb kev tsim cov txheej txheem patina tas li; txias- dov daim hlau 's smooth nto ncua patina nucleation.
Residual Stress: Txias dov qhiaresidual tensile kev nyuaj siabnyob rau hauv cov hlau lub microstructure (los ntawm chav tsev -kub yas deformation). Qhov kev ntxhov siab no tuaj yeem ua rau me me hauv cheeb tsam corrosion nyob rau theem pib, txawm hais tias nws tsis cuam tshuam rau kev loj hlob ntawm patina lub peev xwm tiv thaiv.
3. Kev ntsuas los tshem tawm qhov sib txawv ntawm huab cua tiv thaiv
Artificial Patina Acceleration: Siv lub patina accelerator tom qab sandblasting (los tsim ib tug ntxhib nto). Qhov no shortens lub sij hawm maturation rau2-4 lub lis piam, ua tiav ib tug uniform, ntom patina sai.
Kev Nyuaj Siab Kev Nyuaj Siab: Kub txias- dov daim hlau rau200-300 degreethiab tuav rau 1-2 teev kom tshem tawm cov kev ntxhov siab uas seem, txo qhov kev pheej hmoo ntawm kev xeb thaum ntxov.
Ncej -Patina Sealing: Siv lub pob tshab breathable fluorocarbon sealant tom qab patina maturation -qhov no xauv rau hauv cov txheej tiv thaiv thiab ua kom ntev -lub sij hawm huab cua tsis sib xws ntawm ob hom phaj.
4. Daim ntawv thov pom zoo raws li huab cua tsis kam
Sab nraum cov txheej txheem / kho kom zoo nkauj daim ntawv thov (tsis muaj ua ntej- kho): Xaivkub- dov daim hlau-lawv tsim kev tiv thaiv patina sai dua thiab muaj kev pheej hmoo corrosion tsawg dua.
Precision nyias- ntsuas daim ntawv thov (piv txwv li, cov npe zoo nkauj, lub teeb yuag): Xaivtxias- cov paib dov-pab lawv nrog cov khoom siv dag zog patina acceleration los them rau qhov qeeb ntawm kev loj hlob.
