Kev lag luam siab - ib puag ncig muaj kuab paug- puv nrog SO₂, tshuaj fumes, acidic plua plav, thiab alkaline residues - ua rau muaj kev hem thawj rau S335J0WP Corten Steel lub sijhawm ua haujlwm ntev -. Ntau tus neeg yuav khoom xav tias Corten Steel yog "kev tu vaj tu tsev- dawb," tab sis qhov kev nkag siab tsis zoo no tuaj yeem ua rau ntxov ntxov corrosion thiab kev puas tsuaj hauv cov chaw tsim khoom hnyav. Puas yog S335J0WP tiag tiag xav tau kev saib xyuas tsis tu ncua raws li cov xwm txheej zoo li no? Lub ntsiab lus xaus ua ntej:Yog, lub hom phiaj kev saib xyuas tsis tu ncua yog qhov tseem ceeb. Cov lus piav qhia tseem ceeb: S335J0WP tsis yog qib txheem hauv EN 10025-5 (tus qauv tseem ceeb nyob sab Europe rau Corten Steel). Hauv qab no, peb muab cov lus qhia txog kev saib xyuas txhim khu kev qha raws li nws cov khoom pov thawj (nruab nrab- tsis tshua muaj zog, 20℃cuam tshuam toughness, huab cua tiv thaiv Cu / Cr / P) thiab EN 10025-5's kev saib xyuas logic rau cov huab cua-resistant steels zoo sib xws, nthuav tawm hauv cov ntsiab lus, siv tau.
Lub Ntsiab Tseem Ceeb: Qib Ntuj & Cov pa phem -Induced Damage Mechanism
Txhawm rau kom nkag siab tias vim li cas thiaj li tsim nyog, ob lub ntsiab lus tseem ceeb yuav tsum tau qhia ua ntej:
Qib Inference: Raws li European steel naming conventions, S335J0WP yog ib qho nruab nrab - tsis tshua muaj zog Corten Steel (yield zog ~ 235-}335MPa) nrog "W" ( huab cua tsis kam), "P" (thermo-mechanical rolling), thiab "J0" (20℃cuam tshuam toughness Ntau dua 7J) tributes ntawm 2. Nws ua raws li EN 10025-5 cov qauv tsim qauv tab sis tsis muaj kev ua raws cai.
Kev puas tsuaj rau hauv siab - Ib puag ncig muaj kuab paug: Muaj cov pa phem ua rau S335J0WP tiv thaiv xeb txheej (qhov tseem ceeb ntawm nws cov huab cua tsis kam) nyob rau hauv peb txoj kev: ① Cov pa paug paug thaiv cov xeb txheej "ua pa", tiv thaiv kev tsim ntawm ntom -FeOOH; ② Cov tshuaj acidic / alkaline erode cov xeb txheej, nthuav tawm cov hlau substrate; ③ High humidity accelerates noo noo nkag mus, ua rau pitting corrosion thiab txo 20℃cuam tshuam toughness lub sij hawm.
Targeted Maintenance Measures for Industrial High -Puas yog ib puag ncig
Kev tu xyuas tsom mus rau kev tiv thaiv txheej tiv thaiv xeb, tshem tawm cov pa phem, thiab kho cov kev puas tsuaj hauv zos- yooj yim, qis- nqi, thiab ua raws li cov kev xav tau ntawm kev lag luam:
1. Kev tshuaj xyuas niaj hnub & Kev tshem tawm cov pa phem (Bi-Txhua hli)
Kev soj ntsuam tsom: Saib xyuas qhov txawv txav (xws li xeb liab, pitting, tev tawm) ntawm qhov chaw muaj kuab paug (xws li, ze ntawm qhov hluav taws xob tawm, kab teeb hauv qab, cov ces kaum). Siv lub ntsuas ntsuas tuab kom pom - xyuas yog tias corrosion txo cov phaj thickness hauv qab qhov kev txwv.
Kev tshem tawm cov pa phem: Yaug qhov chaw nrog dej siab (30-50MPa) tov nrog cov tshuaj ntxuav tes tsis huv (pH 6-8) kom tshem tawm cov plua plav, roj pos huab, thiab tshuaj lom neeg. Tsis txhob siv cov kua qaub / alkaline ntxuav (lawv ua rau cov txheej txheem tiv thaiv xeb). Rau cov roj uas tawv tawv, siv Corten- siv cov tshuaj biodegradable ua ntej, tom qab ntawd yaug thiab cua qhuav ib txwm (tsis muaj qhov kub kub kom qhuav, uas ua rau cov xeb txheej).
2. Kev Kho Corrosion hauv zos (raws li pom)
Kev puas tsuaj me me (Pitting qhov tob tsawg dua lossis sib npaug li 3 hli): Maj mam tshem tawm cov xoob thiab cov kab mob xeb nrog cov hlau txhuam los yog nplua -grit sandpaper (tsis txhob hla- sib tsoo lub substrate). Siv Corten- kho qhov zoo tshaj plaws primer (muaj Cu / Cr kom haum rau huab cua tsis kam)- tsis txhob siv cov tshuaj tiv thaiv zoo tib yam - xeb xim, uas cuam tshuam cov txheej txheej xeb.
Severe Damage (Pitting Depth >3mm or Thickness Loss >10%): Txiav tawm qhov corroded seem thiab hloov nws nrog cov ntawv tshiab S335J0WP. Weld nrog huab cua-cov khoom siv tiv taus (ER70S-GNiCu xaim rau MIG, E7018-G electrode rau SMAW) kom ntseeg tau tias qhov sib koom ua ke huab cua tsis kam thiab 20℃toughness. Sib tsoo lub weld smooth tom qab vuam kom tsis txhob muaj kuab paug paug.
3. Ntev-Lub Sij Hawm Tiv Thaiv Txhim Kho (Semi-Txhua Xyoo)
Rau cov khoom nyob rau hauv siab heev - thaj chaw muaj kuab paug (xws li, ze ze ntawm cov tshuaj reactors, boiler chav), siv ib txheej nyias ntawm breathable Corten tu roj tom qab ntxuav. Qhov no ua ib qho kev thaiv ib ntus tiv thaiv cov pa phem yam tsis thaiv cov txheej xeb ntawm lub ntuj tsim.
Ua ntsuas ultrasonic ntawm kev thauj khoom-cov kabmob (piv txwv li, cov kab hluav taws xob txhawb nqa) txhawm rau txheeb xyuas qhov kev ntseeg siab ntawm sab hauv- tseem ceeb rau kev tiv thaiv kev tawg ntawm qhov chaw ua haujlwm.
Critical Maintenance "Tsis txhob"
Tsis txhob siv cov xuab zeb blasting los yog sib tsoo hnyav rau tag nrho saum npoo- qhov no tshem tawm cov txheej tiv thaiv xeb, ua rau cov khoom siv lub sij hawm tsis zoo nyob rau hauv siab - ib puag ncig muaj kuab paug.
Tsis txhob nquag ua kom puv -sab pleev xim rau saum npoo nrog cov xim zoo tib yam kev lag luam- nws seals txheej xeb, ntxiab cov pa phem thiab ya raws sab hauv thiab ua rau muaj kev xeb ntau dua.
Tsis txhob hnov qab txog 20℃qhov cuam tshuam rau kev kuaj xyuas qhov tawv nqaij- muaj kuab paug siab thiab kev lag luam kub hloov pauv ua ke ua rau muaj kev pheej hmoo tawg tawg, uas cuam tshuam nrog qib "J0" qhov kev xav tau ntawm kev ua haujlwm tseem ceeb.
Hauv cov ntsiab lus, S335J0WP Corten Steel xav tau kev saib xyuas tsis tu ncua hauv kev lag luam siab - ib puag ncig muaj kuab lom. Bi-kev tshuaj xyuas txhua hli / tu, kho lub sijhawm hauv zos, thiab ib nrab- kev tiv thaiv ib xyoos ib zaug zoo khaws nws cov txheej tiv thaiv xeb thiab kev ua haujlwm zoo. Rau kev ntseeg tau, paub meej tias S335J0WP cov khoom siv tiag tiag nrog cov neeg muag khoom ntawm Cov Ntaub Ntawv Cov Ntaub Ntawv thiab kho qhov ntsuas ntsuas raws li nws qhov tshwj xeeb tuab thiab qhov chaw.
