Cov teeb meem tseem ceeb: Vim li cas cov vuam cuam tshuam rau huab cua tsis kam
Thaum lub sij hawm vuam, lub cua sov khaus ua rau ob qho teeb meem tseem ceeb:
Hlawv - tawm ntawm cov khoom siv xwb:Qhov kub thiab txias tuaj yeem ua rau oxidation thiab evaporation ntawm cov ntsiab lus tseem ceeb (Cu, Cr, Ni, p) uas tsim nyog los tsim kev tiv thaiv patina. Qhov no tawm ntawm Weld Bead thiab tam sim ntawd nyob ib sab (Haz) depleted ntawm cov ntsiab no.
Hloov microstruction):Cov cua sov ceev thiab cua txias Alters cov hlau lub microstructure, tsim ib thaj av uas tej zaum yuav raug ntau dua li qhov kev xeb dav dua li ntawm cov hlau.
Yog tias tsis muaj kev cuam tshuam, thaj chaw welded yuav xeb, ua rau muaj zog ua haujlwm thiab ua rau tus qauv tsis zoo, thaum tus txiv neej muaj kev ruaj khov ruaj khov.
Kauj Ruam - by {{1} {}}}} kauj ruam rov qab cov txheej txheem
Kauj ruam 1: Kev npaj txoj kev npaj thiab kev ua tiav (lub hauv paus)
Cov txheej txheem kev ua kom tiav pib pib siv cov ntaub ntawv raug thiab cov tswv yim.
Siv Weathering Steel Vuam Hlau / Electrodes:Nov yog theem tseem ceeb tshaj plaws. Koj yuav tsum siv cov tub rog cov hlau uas tau tsim los rau vuam vajhuve cov hlau. Cov fillers no yogTshaj -} sib caisNrog tooj liab ntxiv, chromium, thiab npib tsib xee kom them rau lub hlawv - tawm thaum lub sij hawm vuam.
Cov Kev Tsim Qauv:Saib rau cov tub rog tsim qauv raws liAws 7018-w(rau pas vuam),Er70s-3-w(rau mig / mig xaim), lossisEm13k(Raws li ISO 17735: 2010-W). Yuav tsum tau sab laj rau cov tub lim cov tub rog cov ntaub ntawv sib xyaw ua ke kom paub meej tias nws yog qhov haum rau Q355 lossis zoo sib xws ASTM A588 hlau.
Cov txheej txheem vian:Ua raws li cov txheej txheem tsim nyog warmified specification (WPS). Tswj cov kev tawm ua cua sov kom txo qhov loj me ntawm lub taub hau thiab tiv thaiv kom ntau dhau los- tawm. Cov txheej txheem kom tsim nyog yam tsis muaj qhov tsis xws luag (zoo li porosity lossis undercut) yog qhov tseem ceeb, raws li cov flaws yuav dhau los ua cov khoom noj hniav corrosion.
Kauj Ruam 2: Tshaj tawm {- weld tu (tsis {2} {sib ceg)
Tom qab vuam, thaj chaw yuav tsum ua kom huv.Tsis txhob hla cov kauj ruam no.
Tshem tawm slag thiab spatat:Chip, txhuam, thiab zom txhua qhov chaw txiav tawm thiab txhais tau. Cov impurities no yuav ua rau ya raws thiab ua rau nrawm, hauv kev xeb hauv cheeb tsam.
Huv si rau liab qab, cov hlau ci:Siv ** Abrasive Blasting ** (piv txwv li, nrog tooj liab slag, garnet, lossis iav hlaws dai) ntawm Weld Bead thiab tag nrho cov cua sov- bead thaj tsam (Haz). Lub hom phiaj yog kom tshem tawm txhua txhiab zaus, cov paug, thiab thawj zaug tsis muaj xeb kom qhia cov khaub ncaws tsis ruaj khov los qhia cov khaub ncaws tsis ruaj khov los nthuav tawm cov khaub ncaws tsis ruaj khov los nthuav tawm cov khaub ncaws tsis ruaj khov los qhia cov khaub ncaws, huv si, nyiaj} nws yog xim hlau.
Txheem:Blast rau aSA 2½(Heev ua kom huv heev ntxuav) tus qauv, uas tau txhais tias yog "ze li ntawm cov hlau dawb".
Lwm Txoj Kev:Rau kev kho me me, kom huv huv cov cuab yeej siv hluav taws xob (piv txwv li, koob scalers, sib tsoo disks, nrov plig plawg discs) rau aSt3Cov qauv tuaj yeem lees txais, tab sis cov tsis txaus ntseeg yog qhov tsis zoo yog qhov zoo dua rau kev tsim cov ntaub ntawv zoo tshaj plaws saum npoo.
Kauj ruam 3: Txhawb Patina Tsim (Kev Txum Tim Rov Qab)
Thaum lub ntsej muag zoo nkauj heev, koj yuav tsum pib ua pov thawj patin. Koj muaj ob txoj kev xaiv tseem ceeb:
Kev xaiv A: Ntuj Worts (Passive mus ze)
Txheej txheej:Tsuas yog tawm ntawm thaj chaw blasted raug rau lub ntuj ib puag ncig. Lub alloy {{- nas nplua nuj weld hlau thiab huv si weld hlau thiab huv si yuav nws pib ua ib qho kev tiv thaiv patina uas yuav sib xyaw nrog cov hlau ib puag ncig.
Drawback:Cov txheej txheem no qeeb (tuaj yeem siv sijhawm ntau xyoo) thiab kho kom nrawm dua li cov pata uas muaj nyob ib ntus, ua rau muaj kev sib cav sib ceg ib ntus thiab kev tsis sib xws.
Kev xaiv B: Tshem tawm cov cua nrawm (ua haujlwm thiab kev pom zoo)
Txheej txheej:Hom qauv no tsim cov patina los ua kom sai thiab tsis zoo. Nov yog qhov kev coj ua zoo tshaj plaws rau kev kho.
Tom qab cov kev sib cav sib cav sib ceg, thov ib qho **** accelerated patina tov.Cov no feem ntau yog dej {{{0} Kev daws teeb meem muaj cov kua nyeem, acids (piv txwv li, tooj liab acid, phosphoric acid).
Cov kev daws teeb meem feem ntau yog kev tso siab lossis txhuam rau ntawm qhov huv si, liab qab hlau nto.
Nws yuam kev nrawm oxidation kev tawm tsam, tso cov tebchaw ruaj khov uas ua rau muaj kev tiv thaiv patina ncaj qha rau saum npooteev lossis hnub, tsis muaj xyoo.
Nws feem ntau yuav tsum tau siv ntau daim ntawv thov mus nrog kom qhuav sijhawm hauv nruab nrab.
Qhov tshwm sim:Cov cheeb tsam kho yuav pib tam sim ntawd kom phim cov xim thiab tiv thaiv zoo ntawm ib puag ncig, cov hlau laus. Qhov no ua kom meej meej kev ua kom xeb tawm los ntawm ib hnub ib.
Kauj ruam 4: Kev Soj Ntsuam thiab Saib Xyuas
Tom qab kev kho mob, saib xyuas thaj chaw raug kho nyob rau ob peb lub hlis tom ntej.
Lub hom phiaj yog kom pom cov khaub ncaws hnav, xim av tsaus nti uas tsis muaj qee cov cim ntawm patdery, xoob liab xeb (uas qhia tias muaj kev nquag corrosion).
Lub patina yuav txuas ntxiv kom paub tab thiab tsaus ntuj dhau lub sijhawm.
