Cov lus luv luv txog cov tshuaj tsuag ntsev ①

Ntsev Txau Tester

Ntsev, arguably qhov sib faib dav tshaj plaws nyob rau hauv lub ntiaj teb, yog ubiquitous nyob rau hauv dej hiav txwv, cua, av, pas dej thiab dej. Thaum cov ntsev me me tau muab tso rau hauv cov kua dej me me, ib puag ncig ntsev tsuag yog tsim. Nyob rau hauv xws li ib puag ncig, nws yuav luag tsis yooj yim sua kom sim tiv thaiv cov khoom los ntawm cov tshuaj tsuag ntsev. Qhov tseeb, tshuaj tsuag ntsev yog qhov thib ob tsuas yog qhov kub thiab txias, kev co, cua sov thiab av noo, thiab plua plav ib puag ncig ntawm kev puas tsuaj rau cov tshuab thiab cov khoom siv hluav taws xob (lossis cov khoom siv).

Kev kuaj ntsev ntsev yog ib feem tseem ceeb ntawm cov khoom tsim kho theem los ntsuas nws cov kev tiv thaiv corrosion. Cov kev ntsuam xyuas no feem ntau muab faib ua ob pawg: ib qho yog qhov kev sim ntawm ib puag ncig ntuj, uas yog siv sij hawm siv thiab siv zog, thiab yog li ntawd tsis tshua muaj siv hauv kev siv tswv yim; lwm qhov yog qhov kev simulated ntsev tsuag ib puag ncig kev sim, qhov twg cov tshuaj chloride concentration tuaj yeem ncav cuag ob peb zaug lossis txawm kaum lub sij hawm ntawm cov ntsev ntsev cov ntsiab lus ntawm ib puag ncig, thiab corrosion tus nqi yog li ntawd zoo heev, yog li shortening lub sij hawm los txog ntawm. cov qhabnias xeem. Piv txwv li, cov qauv khoom lag luam uas yuav siv sij hawm ib xyoos rau corrode nyob rau hauv ib puag ncig ntuj tuaj yeem raug sim nyob rau hauv ib qho kev simulated ntsev tsuag ib puag ncig nrog cov txiaj ntsig zoo sib xws hauv tsawg li 24 teev.

1) ntsev tsuag tshuaj ntsuam txoj cai

Kev ntsuam xyuas ntsev ntsev yog ib qho kev sim uas simulates cov xwm txheej ntawm cov ntsev tsuag ib puag ncig thiab feem ntau yog siv los ntsuas qhov corrosion kuj ntawm cov khoom thiab cov khoom. Qhov kev sim no siv cov cuab yeej siv tshuaj tua ntsev los tsim kom muaj ntsev tsuag ib puag ncig zoo ib yam li pom nyob rau hauv cov huab cua hauv hiav txwv. Nyob rau hauv ib puag ncig zoo li no, sodium chloride hauv cov tshuaj ntsev decomposes rau hauv Na + ions thiab Cl-ions nyob rau hauv qee yam mob. Cov ions no hnov ​​​​mob chemically nrog cov khoom siv hlau los tsim cov tshuaj acidic hlau ntsev. Cov hlau ions, thaum raug oxygen, txo kom tsim cov hlau oxides ruaj khov dua. Cov txheej txheem no tuaj yeem ua rau corrosion thiab xeb thiab blistering ntawm cov hlau lossis txheej, uas tuaj yeem ua rau muaj ntau yam teeb meem.

Rau cov khoom siv kho tshuab, cov teeb meem no tuaj yeem suav nrog kev puas tsuaj rau cov khoom siv thiab cov fasteners, jamming lossis malfunctioning ntawm kev txav ntawm cov khoom siv kho tshuab vim muaj kev cuam tshuam, thiab qhib lossis luv Circuit Court nyob rau hauv microscopic xov hlau thiab cov ntawv xov hlau luam tawm, uas tuaj yeem ua rau cov ceg tawg. Raws li rau cov khoom siv hluav taws xob, cov khoom siv hluav taws xob ntawm cov ntsev ntsev tuaj yeem ua rau muaj kev tiv thaiv ntawm cov khoom siv hluav taws xob thiab cov ntim ua haujlwm kom txo qis heev. Tsis tas li ntawd, qhov kev tiv thaiv ntawm cov ntsev tsuag corrosive cov khoom siv thiab cov pob zeb qhuav ntawm cov ntsev ntsev yuav siab dua li ntawm cov hlau qub, uas yuav ua rau kom muaj kev tiv thaiv thiab qhov hluav taws xob poob rau hauv cheeb tsam, cuam tshuam rau kev ua hluav taws xob, thiab yog li cuam tshuam rau cov khoom siv hluav taws xob. hluav taws xob khoom ntawm cov khoom.