Corrosion thiab kev tiv thaiv ntawm Channel Steel
Channel steel yog ib tug ntev sawb hlau nrog ib tug zawj zoo li tus ntoo khaub lig-section, belongs rau carbon structural steel rau kev tsim kho thiab machinery. Nws yog ib tug complex seem steel nrog ib tug zawj zoo li tus ntoo khaub lig-section. Channel steel feem ntau yog siv rau hauv kev tsim vaj tsev, kev tsim tsheb, thiab lwm yam kev lag luam, thiab feem ntau siv ua ke nrog I-beams. Vim nws cov qauv metallographic tshwj xeeb thiab cov yeeb yaj kiab ntog dhau los, channel steel feem ntau nyuaj rau kev cuam tshuam tshuaj lom neeg nrog rau nruab nrab thiab raug corroded, tab sis nws tsis tuaj yeem corroded nyob rau hauv ib qho kev mob. Thaum siv cov channel steel, ntau yam teeb meem yuav raug ntsib, thiab corrosion yog ib qho teeb meem tseem ceeb. Corrosion ntawm channel steel feem ntau tshwm sim los ntawm ob qho laj thawj hauv qab no.
1. Tshuaj corrosion: roj stains, plua plav, acids, alkalis, ntsev, thiab lwm yam uas txuas rau saum npoo ntawm channel steel yog hloov mus rau hauv corrosive media nyob rau hauv tej yam kev mob, thiab reacts chemically nrog tej yam Cheebtsam nyob rau hauv lub channel steel, uas ua rau cov tshuaj corrosion thiab xeb; Ntau yam khawb tuaj yeem ua rau cov yeeb yaj kiab passivation, txo qhov muaj peev xwm tiv thaiv cov channel steel, thiab yooj yim cuam tshuam nrog cov tshuaj lom neeg, ua rau muaj tshuaj lom neeg corrosion thiab xeb.
2. Electrochemical corrosion: khawb los ntawm kev sib cuag nrog carbon steel qhov chaw thiab tsim cov thawj roj teeb nrog corrosive media, uas ua rau electrochemical corrosion; Kev sib txuas ntawm cov khoom siv xeb xws li slag txiav thiab txaws mus rau qhov nruab nrab corrosive tsim cov roj teeb thawj, uas ua rau electrochemical corrosion; Lub cev tsis xws luag (undercuts, pores, tawg, tsis muaj fusion, tsis muaj kev nkag mus, thiab lwm yam) thiab tshuaj tsis xws luag (coarse grains, segregation, thiab lwm yam) nyob rau hauv lub vuam cheeb tsam tsim ib tug thawj roj teeb nrog corrosive nruab nrab, uas ua rau electrochemical corrosion. .
Yog li ntawd, tag nrho cov kev ntsuas zoo yuav tsum tau ua thaum ua cov channel steel kom tsis txhob muaj qhov tshwm sim ntawm corrosion thiab inducements ntau npaum li sai tau. Ib txoj hauv kev yog siv cov tshuaj tsuag aluminium. Txau txhuas txheej thiab sealing nrog anti-corrosion txheej tuaj yeem ua rau lub neej ntev ntawm txheej txheej. Los ntawm kev siv theoretical thiab kev siv cov teebmeem, zinc lossis aluminium sprayed coatings yog qhov zoo tshaj plaws hauv qab txheej ntawm cov tshuaj tiv thaiv corrosion; Cov txheej txheej aluminium muaj lub zog sib txuas nrog cov hlau substrate, lub neej ntev txheej, thiab cov txiaj ntsig zoo rau kev lag luam ntev; Cov txheej txheem txheej txheej txheej txheej aluminium yog hloov tau thiab tsim nyog rau kev tiv thaiv mus sij hawm ntev ntawm qhov tseem ceeb loj thiab nyuaj rau kev tswj cov txheej txheem steel, thiab tuaj yeem siv rau ntawm qhov chaw.
Lwm txoj hauv kev yog siv galvanized los tiv thaiv corrosion: kub-dip galvanized channel steel tau muab faib ua kub-dip galvanized channel steel thiab kub-dhuav galvanized channel steel raws li cov txheej txheem sib txawv. Tom qab tshem tawm cov xeb, cov hlau seem tau muab tso rau hauv cov tshuaj zinc molten nyob ib puag ncig 440-460 ℃ txhawm rau txuas zinc txheej rau saum npoo ntawm cov hlau, yog li ua tiav lub hom phiaj ntawm kev tiv thaiv corrosion. Nyob rau hauv cov huab cua, ib txheej nyias thiab ntom ntawm zinc oxide yog tsim nyob rau saum npoo ntawm zinc txheej, uas yog ib qho nyuaj rau yaj nyob rau hauv dej thiab yog li ntawd plays lub luag hauj lwm tiv thaiv ntawm channel hlau.
Shandong Kungang Hlau Technology Co., Ltd. tshwj xeeb hauv cov yeeb nkab steel thiab cov khoom siv profile, nrog rau kev muag khoom network npog ntau lub xeev hauv Suav teb thiab ntau lub teb chaws txawv teb chaws. Los ntawm kev ua haujlwm hnyav ntawm txhua tus neeg ua haujlwm thiab kev sib raug zoo ntawm cov viv ncaus cov koom haum, nyob rau hauv qhov tsis sib haum xeeb ntawm kev lag luam steel, peb tuaj yeem nkag siab cov ntaub ntawv thiab lub sijhawm, tsis tu ncua thiab txhim kho ntawm qhov ceev ceev, thiab tau txais kev txhim kho thiab kev loj hlob. Nrog cov kev pabcuam zoo thiab cov khoom zoo, peb tau txais kev ntseeg siab ntawm peb cov neeg siv khoom.
Post lub sij hawm: Jun-14-2024