Kub-dip galvanizing yog ib qho tseem ceeb ntawm kev tiv thaiv corrosion feem ntau siv rau kev kho deg ntawm steel grating. Nyob rau hauv ib puag ncig corrosive, lub thickness ntawm galvanized txheej ntawm steel grating muaj ib tug ncaj qha cuam tshuam rau corrosion kuj. Raws li tib lub zog sib txuas, lub thickness ntawm txheej (adhesion npaum li cas) txawv, thiab lub sij hawm corrosion kuj tseem txawv. Zinc muaj qhov ua tau zoo heev ua cov khoom tiv thaiv rau steel grating puag. Lub peev xwm electrode ntawm zinc yog qis dua li ntawm cov hlau. Nyob rau hauv lub xub ntiag ntawm electrolyte, zinc ua ib qho anode thiab poob electrons thiab corrodes nyiam, thaum lub steel grating puag yog cathode. Nws tiv thaiv corrosion los ntawm electrochemical tiv thaiv ntawm galvanized txheej. Obviously, lub thinner lub txheej, lub sij hawm luv luv ntawm corrosion kuj, thiab lub sij hawm corrosion kuj nce raws li cov txheej thickness nce. Txawm li cas los xij, yog tias txheej txheej tuab dhau lawm, lub zog sib txuas ntawm cov txheej thiab cov hlau substrate yuav poob qis, uas yuav txo tau lub sij hawm corrosion thiab tsis yog kev lag luam. Yog li ntawd, muaj qhov zoo tshaj plaws tus nqi rau cov txheej thickness, thiab nws tsis yog zoo kom tuab heev. Tom qab kev soj ntsuam, rau kub-dip galvanized steel grating plating qhov chaw ntawm txawv specifications, qhov zoo tshaj plaws txheej thickness yog tsim nyog rau ua tiav lub sij hawm ntev corrosion kuj.
Txoj kev los txhim kho txheej thickness
1. Xaiv qhov zoo tshaj plaws galvanizing kub
Yuav ua li cas tswj qhov kub ntawm galvanizing ntawm steel grating yog ib qho tseem ceeb heev los xyuas kom meej thiab txhim kho cov txheej txheem zoo. Tom qab xyoo ntawm kev xyaum ntau lawm, peb ntseeg tias nws yog qhov zoo tshaj plaws los tswj qhov kub-dip galvanizing kub ntawm 470 ~ 480 ℃. Thaum lub thickness ntawm lub plated yog 5 hli, txheej thickness yog 90 ~ 95um (ambient kub yog 21 ~ 25 (). Lub sij hawm no, kub-dip galvanized steel grating yog kuaj los ntawm tooj liab sulfate txoj kev, cov txiaj ntsig qhia tau hais tias: txheej yog immersed rau ntau tshaj 7 zaug yam tsis tau nthuav tawm cov hlau matrix ntau dua li 1 degrees (tsis muaj galvanized steel) yog 1 lub sij hawm. Thaum lub zinc immersion kub yog 455 ~ 460 ℃, cov txheej thickness tau tshaj qhov zoo tshaj tus nqi nyob rau lub sij hawm no, txawm hais tias cov txheej txheem kev ntsuam xyuas yog zoo (feem ntau immersed rau ntau tshaj 8 lub sij hawm tsis exposing lub matrix), vim hais tias ntawm cov zinc cov kua viscosity nce, lub sagging yog pom tseeb, thiab cov phenomenon yog tsis zoo. Kev delamination tshwm sim thaum lub zinc immersion kub yog 510 ~ 520 ℃, txheej thickness yog tsawg tshaj li qhov zoo tshaj tus nqi (feem ntau tsawg tshaj li 60um).
2. Tswj lub lifting ceev ntawm cov khoom plated. Kev ceev ntawm nqa cov hlau grating plated qhov chaw los ntawm cov kua zinc muaj qhov tseem ceeb ntawm cov txheej txheej thickness. Thaum lub lifting ceev ceev, ces galvanized txheej yog tuab. Yog hais tias lub lifting ceev yog qeeb, lub txheej yuav nyias. Yog li ntawd, lub lifting ceev yuav tsum tsim nyog. Yog tias nws qeeb heev, cov hlau-zinc alloy txheej thiab cov zinc txheej ntshiab yuav diffuse thaum lub sij hawm nqa cov txheej txheem ntawm cov hlau grating plated, yog li ntawd cov zinc txheej ntshiab yuav luag tag nrho hloov mus rau hauv cov txheej txheej alloy, thiab cov xim grey-thirsty yog tsim, uas txo cov kev ua tau zoo ntawm cov txheej. Tsis tas li ntawd, nyob rau hauv tas li ntawd mus rau lub lifting ceev, nws kuj yog ze ze rau lub lifting lub kaum sab xis.
3. nruj me ntsis tswj lub sij hawm zinc immersion
Nws paub zoo tias lub thickness ntawm cov hlau grating txheej yog ncaj qha ntsig txog lub sijhawm zinc immersion. Lub sijhawm zinc immersion feem ntau suav nrog lub sijhawm uas yuav tsum tau tshem tawm cov plating pab rau ntawm qhov chaw ntawm cov plated thiab lub sijhawm yuav tsum tau ua kom sov cov plated qhov chaw rau zinc kua kub thiab tshem tawm cov zinc tshauv ntawm cov kua dej tom qab zinc immersion. Nyob rau hauv ib txwm muaj xwm txheej, lub sij hawm zinc immersion ntawm cov plated qhov chaw yog tswj mus rau lub sum ntawm lub sij hawm thaum cov tshuaj tiv thaiv ntawm cov plated qhov chaw thiab cov zinc kua yog txiav thiab zinc tshauv ntawm cov kua nto raug tshem tawm. Yog tias lub sijhawm luv luv, qhov zoo ntawm cov hlau grating plated qhov tsis tuaj yeem lav. Yog tias lub sijhawm ntev dhau lawm, lub thickness thiab brittleness ntawm txheej yuav nce, thiab corrosion kuj ntawm cov txheej yuav raug txo, uas yuav cuam tshuam rau lub neej kev pab cuam ntawm steel grating plated qhov chaw.
Post lub sij hawm: Jun-20-2024