Kev ntsuas tsis tiav thiab cov hauv paus ua rau kev tshawb nrhiav
Q1: Cov txheej txheem thawj zaug los coj thaum ua tsis tiav hauv A53B kav dej?
A1: Qhov tseem ceeb tam sim ntawd tom qab kev ua tsis tiav yog ua kom muaj kev nyab xeeb: cais tawm cov system los ntawm kev kaw cov haujlwm, kev tawm tsam, thiab xauv tawm cov khoom siv hluav taws xob. Thaum muaj kev nyab xeeb, qhov tsis ua tiav qhov kev ua tsis tiav yuav tsum ua kom pom tseeb thiab sau tseg. Qhov no suav nrog thaij duab los ntawm ntau lub ces kaum ua ib yam dab tsi tsiv mus rau kev txhawb nqa, thiab hloov pauv kev taw qhia. Cov kev ua haujlwm thaum lub sijhawm ua tsis tiav (kev kub siab, kub, kua yuav tsum sau cia. Kev kuaj ua ntej yog qhov muag ua ntej yuav tsum tau ua kom paub hom pob zeb (ntsej muag lossis corrosion lossis kev puas tsuaj corrosion lossis tshuab puas. Nws yog qhov tseem ceeb kom tsis txhob tu cov pob txha lov rau theem no, raws li nws tuaj yeem rhuav tshem cov pov thawj tseem ceeb rau kev txheeb xyuas hauv paus.
Q2: Koj yuav ua li cas koj thiaj paub qhov sib txawv ntawm cov kwj deg thiab nkig sib tsoo ntawm cov yeeb nkab tsis tiav A53B?
A2: Pom qhov txawv ntawm cov qauv tsis ua tiav yog qhov tseem ceeb. IbZas overload BactureCov khoom ua yeeb yam tseem ceeb heev deformation (caj dab lossis bulging) thiab tus yam ntxwv grey, fibrous tsos nyob rau hauv pob txha tawv. Nws feem ntau muaj shear daim di ncauj (45-degree kaum cov) ntawm cov npoo. Qhov tsis ua hauj lwm tshwm sim tom qab cov ntaub ntawv tau yielded thiab yog feem ntau ntawm kev ntsuas ntsuas tshaj qhov tsim qauv. IbNyuaj pob txha lov, nyob rau hauv sib piv, qhia me ntsis rau tsis muaj yas deformation. Lub pob txha lov yog feem ntau ci thiab granular, nrog Chevron cov qauv uas taw tes rov qab rau lub keeb kwm tawg. Lub pob txha caj qaum feem ntau yog tiaj thiab sib tshooj mus rau qhov kev ntxhov siab tshaj plaws. Brittle Fab Kis tuaj yeem tshwm sim ntawm kev ntxhov siab hauv qab no cov txiaj ntsig lub zog thiab feem ntau yog ua ntej tshaj plaws, cov nqi kub tsawg, lossis cov nqi tsheb siab.
Q3: Dab tsi yog corrosion nkees thiab nws ua li cas rau ntawm A53b yeeb nkab?
A3: corrosion qaug zog yog ib lub tshuab ua tsis tau uas ua ke ntawm kev ntxhov siab thiab ib puag ncig ntawm kev ntxhov siab, thiab ib leeg yuav mob hnyav ua rau tsis ua haujlwm. Nws ua kom txo cov qaug zog lub neej ntawm cov khoom. Ntawm A53B yeeb nkab, nws feem ntau ua piv txwv li ntau cov kab nrib pleb zoo pib ntawm corrosion pits ntawm sab hauv lossis sab nraud. Cov kab nrib pleb no feem ntau hloov mus rau cov kev taw qhia kev ntxhov siab. Lub pob txha lov Nto yuav qhia tau kev sib xyaw ntawm cov cim nta thiab cov khoom xeb corrosion. Tsis zoo li cov neeg muaj zog ntshiab, corrosion Qoob loo tuaj yeem pib thiab nthuav tawm ntawm cov qib kev ntxhov siab nyob deb hauv qab cov khoom siv. Nws yog hom tsis ua hauj lwm hom rau kev co kom co, siab hloov pauv, lossis thermal cycling nyob rau hauv ib puag ncig corrosive.
Q4: Cov kev qhia dab tsi yog siv los tshawb xyuas cov yeeb nkab tsis ua haujlwm?
A4: Chav kuaj tas nrho cov kev ntsuas ua haujlwm ib qho suite ntawm cov tswv yim:Kev Ntsuas Hluav Taws Xob Kev Ntsuas Hluav Taws Xob (SEM)Muab cov siab siab - daws cov duab los txheeb xyuas micro - Cov me nyuam (ducab) lossis cleavage).Zog dispersive x - ray spectroscopy (EDS), txuas nrog SEM, qhia txog cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov khoom lag luam corrosion lossis suav nrog cov keeb kwm tawg.Xim hlau duamuaj feem cuam tshuam cov qauv, mounting nws nyob rau hauv resin, polishing, decarburization, grain loj, thiab muaj cov nrib pleb.Kev Ntsuas HardnessNyob thoob plaws hauv Weldment (Luj Hlau, Haz, Weld Hlau) Kev txheeb xyuas rau kev kho cua sov kom zoo thiab qhia txog kev ua kom tawv tawv uas tuaj yeem txhawb kev tawg. Tshuaj ntsuam xyuas cov tshuaj ntsuam xyuas cov khoom siv qib.
Q5: Vim li cas thiaj li txiav txim siab qhov tseeb nrib pleb pib taw tes rau qhov tseem ceeb tshaj plaws ntawm kev soj ntsuam tsis ua tiav?
A5: Nrhiav cov kev pib ua kom haum Cov xwm txheej ntawm cov keeb kwm - yuav ua rau muaj kev ntxhov siab, lossis cov khoom siv microstre} yog dab tsi nyob rau qhov chaw nyob rau qhov chaw uas tawg tau. Los ntawm kev tsom cov cuab yeej muaj zog tshaj plaws (zoo li SEM / Eds) ntawm thaj chaw me me no, cov neeg kawm txoj moo zoo tuaj yeem txheeb xyuas qhov pib ua rau. Piv txwv li, nrhiav cov sulfide suav nrog cov ntsiab lus tam sim no rau cov teeb meem khoom, thaum paub cov chlorine qhia txog ib puag ncig corrosive tshwj xeeb. Yog tias tsis muaj qhov tseeb txheeb xyuas lub hauv paus chiv keeb, kev soj ntsuam tsuas yog nyob ntawm cov tsos mob (txoj kev hais tawm) ntau dua li qhov tseem ceeb rau kev ua tsis tiav.
