Corrosion zog ntawm welded steel kav

Thaum T-welded steel yeeb nkab muaj Ni, nws muaj zog corrosion kuj nyob rau hauv ib puag ncig acidic, thiab nyob rau hauv ib puag ncig uas muaj sulfuric acid los yog hydrochloric acid, cov ntsiab lus ntau dua ntawm Ni nyob rau hauv lub T-welded steel yeeb nkab, muaj zog corrosion kuj. . Hauv ib puag ncig, tsuas yog ntxiv Cr rau T-welded steel yeeb nkab tuaj yeem tiv thaiv qhov tshwm sim ntawm kev yaig. Qhov tsis zoo ntawm ntug ntawm cov hlau sawb yog lwm qhov laj thawj tseem ceeb rau qhov tsis ncaj ncees lawm ntug. Cawv ntawm pawg neeg txaus, hluav taws kub flux ntom ntom thiab cov qauv ntsuas (piv rau ntawm cov kab mob sib tsoo
Hauv kev tsim cov T-welded steel yeeb nkab, qhov tsis ncaj ncees lawm ntug feem ntau tshwm sim, thiab muaj ntau yam cuam tshuam. Hauv kev xyaum ntau lawm, cov yeeb nkab steel feem ntau degraded los ntawm qhov tsis ncaj ncees lawm ntug. Yog li ntawd, nws yog ib qho tsim nyog los tshuaj xyuas qhov ua rau ntawm kauv steel yeeb nkab misalignment thiab nws cov kev tiv thaiv.
Vim qhov tsis zoo thiab qhov tseeb ntawm cov hlau tsis muaj hlau lead thiab tus Tsov tus tw, nws yog ib qho yooj yim los ua nyuaj khoov ntawm txoj siv hlau thiab ua rau cov npoo tsis raug. Simulation tsis muaj ntau yam: ntsug yeeb nkab: yeeb nkab txoj kab uas hla D=lOmm, yeeb nkab ntev L=660mm; Peb hom ntsug T-welded steel kav: yeeb nkab txoj kab uas hla D=10mm, qhov piv ntawm curvature txoj kab uas hla ntawm T-welded steel yeeb nkab mus rau txoj kab uas hla ntawm kauv yeeb nkab hloov raws li Dc/D= 15 ,20,25, kauv suab Pt=20mm, yeeb nkab ntev yog L=503mm, L=660mm, L=817MM. Loj txaus tus nqi G=200~400Kg/(m'2·s), kub flux q=5~15KW/m'2, saturation siab p, saturation =0.414880MPa, saturation kub T, saturation =283.15K.