Vuam ASTM A871 Qib 65 Corten Steel xav tau ntau tshaj li cov txheej txheem txheej txheem nkaus xwb - nws lub siab - lub zog thiab corrosion- resistant alloy sib xyaw xav tau cov kev coj ua tshwj xeeb los khaws nws cov qauv kev ncaj ncees thiab kev ua haujlwm patina. Ntau tus fabricators tawm tsam nrog tsis muaj zog welds, patina mismatches, los yog post-weld corrosion, feem ntau vim yog overlooked cov kauj ruam. Cov lus nug tseem ceeb yog: Dab tsi yog qhov zoo tshaj plaws, ASTM- ua raws li cov kev coj ua kom welding no Corten Steel qib kom raug, tsis muaj kev cuam tshuam nws lub zog lossis huab cua tsis kam?
Ua ntej-Kev Npaj Vuam: Teem Lub Hauv Paus rau Kev Ua tiav
Kev npaj kom raug yog thawj kauj ruam kom muaj zog, corrosion-resistant welds- hla qhov no, thiab txawm tias cov txheej txheem vuam zoo tshaj plaws yuav ua tsis tiav:
Ua kom huv si Weld Area: Tshem tawm tag nrho cov kab mob (xeb, roj, roj, av) ntawm 25-50mm ntawm ob sab ntawm kev sib koom tes. Siv cov txhuam hlau los yog lub tshuab sib tsoo- tej yam khoom seem yuav ua rau cov porosity thiab tsis muaj zog welds, ua rau cov hlau tsis muaj zog 450 MPa.
Preheating (Qhov tseem ceeb rau Thicker Sections): Rau seem tshaj 12 hli los yog ambient kub hauv qab 10 degree, preheat rau 150-200 degree. Qhov no tiv thaiv qhov txias txias, ib qho teeb meem tshwm sim nrog siab - lub zog Corten Steel. Cov ntu nyias (tsawg dua lossis sib npaug li 12 hli) feem ntau tsis tas yuav tsum tau ua kom sov.
Xaiv txoj cai Filler Hlau: Siv AWS E7018 (SMAW) los yog ER70S-6 (GMAW) muab tub lim-lawv phim Qib 65 lub zog thiab corrosion kuj. Tsis txhob muab tso rau hauv siab sulfur lossis txhuas, vim lawv degrade weld zoo.
Welding Techniques & Parameter Control
ASTM A871 Qib 65 yog weldable nrog cov qauv txheej txheem, tab sis kev tswj tsis tau yog qhov tseem ceeb kom tsis txhob ua rau nws cov khoom puas tsuaj:
Txoj kev pom zoo: SMAW (Shielded Hlau Arc Vuam) ua haujlwm zoo tshaj plaws rau cov ntu tuab; GMAW (MIG) yog zoo tagnrho rau nyias mus rau nruab nrab seem. Ob txoj kev tswj cov hlau lub zog siab thaum ua kom raug.
Cov ntsiab lus tseem ceeb Parameter: Khaws cov cua kub ntawm 15–25 kJ/mm-cov cua kub ntau dhau ua rau cov hlau tsis muaj corrosion-cov khoom tiv taus. Rau SMAW, siv 2.4-4.0mm E7018 electrodes nrog 80-140 amps; GMAW, 0.8-1.2mm ER70S-6 hlau nrog 100-200 amps.
Weld Technique: Siv luv luv arc ntev (2-3mm) thiab stringer hlaws dai (tsis weave hlaws) kom tsis txhob muaj cua sov thiab warping. Tuav lub kaum sab xis ntawm 10-15℃kom fusion zoo dua.
Ncej -Welding Care: Tiv thaiv Corrosion Resistance
Ncej-weld cov kauj ruam feem ntau tsis saib xyuas tab sis tseem ceeb heev rau kev rov kho qib 65's patina thiab ntev- lub sij hawm durability:
Tshem cov weld slag thiab spatter tam sim ntawd nrog ib tug chisel los yog hlau txhuam -slag slag ua rau lub zos corrosion.
Maj mam txhuam cov npoo npoo kom haum rau lub hauv paus hlau qhov kev ntxhib los mos-qhov no ua kom cov patina tsis sib xws nyob rau lub sijhawm.
Tsis txhob pleev xim lossis pleev xim rau thaj tsam weld- cia lub patina tsim ib txwm muaj los tswj kev tiv thaiv corrosion, qhov txiaj ntsig tseem ceeb ntawm Corten Steel.
Common Welding yuam kev kom zam
Hla preheating rau cov seem tuab: Ua rau txias tawg thiab tsis muaj zog welds uas tsis tuaj yeem txhawb nqa hnyav.
Siv cov hlau tsis sib xws: Ua rau cov vuam lub zog thiab corrosion kuj, defeating qib 65 lub hom phiaj.
Cov khoom siv hluav taws xob ntau dhau: Ua rau cov hlau tsis zoo ntawm cov hlau alloy, txo nws qhov siab -lub zog thiab huab cua- cov khoom tiv taus.
Hauv luv luv, vuam ASTM A871 Qib 65 Corten Steel kom raug los rau kev npaj, kev tswj xyuas, thiab tom qab-weld care. Ua raws li cov kev coj ua no los tsim kom muaj zog, corrosion-cov welds tiv taus uas phim lub hauv paus hlau qhov kev ua tau zoo- ua kom koj qhov siab - lub zog Corten Steel project kav ntau xyoo tawm sab nraum zoov.
