Fabricating ASTM A871 Qib 65 Corten Steel xav tau qhov tseeb los khaws nws cov qib siab - lub zog muaj zog thiab cov cim zoo nkauj - tiv taus patina. Qhov siab no -lub zog huab cua steel yog tsim thiab weldable raws li ASTM tus qauv, tab sis kev ua tsis zoo tuaj yeem ua rau cov pob qij txha tsis muaj zog, patina puas, lossis poob load-cov kabmob muaj peev xwm. Rau cov neeg tsim khoom thiab cov pab pawg ua haujlwm, cov lus nug tseem ceeb yog: Dab tsi ua tau zoo, ASTM- cov lus qhia ua kom zoo kom ua tiav kev tsim thiab tsim yam tsis muaj kev cuam tshuam kev ua haujlwm? Hauv qab no yog cov lus qhia luv luv, ua tau zoo raws li kev pom tseeb thiab tiag -lub ntiaj teb daim ntawv thov.
Core Fabrication & Forming Advantages ntawm Qib 65 Corten Steel
Ua ntej, nws yog ib qho tseem ceeb rau kev siv nws lub zog muaj zog, txhais los ntawm ASTM A871 / A871M tus qauv:
Zoo heev Cold Formability: Hla 180℃txias-kev sim khoov yam tsis muaj kev tawg, zoo tagnrho rau dov rau hauv tubular ncej, nkhaus thav duab, lossis cov qauv kev cai.
Weldable nrog Standard Practices: Ua raws li ASTM A6 / A6M cov lus qhia, txhawb kev sib koom ua ke ntawm cov phaj thiab cov khoom siv yooj yim.
Zoo-Ntsuab Toughness: Khaws lub zog thiab tawv tom qab tsim, tiv thaiv kev puas tsuaj hauv siab - kev ntxhov siab hauv kev lag luam lossis sab nraum zoov.
Cov Lus Qhia Tseem Ceeb Tshaj Plaws (Cold & Kub)
Kev tsim yog lub hauv paus ntawm cov qauv kev cai - ua raws cov kauj ruam no kom tsis txhob muaj qhov tsis xws luag:
Cold forming (nyiam dua rau nyias / nruab nrab seem tsawg dua lossis sib npaug li 25mm):
Siv cov khoom siv qis- ceev dov lossis dabtsi yog khoov (tsawg dua lossis sib npaug li 5 m / min) kom txo qis kev sib txhuam ntawm qhov chaw thiab patina khawb.
Tsis txhob dhau- dabtsi yog khoov; Qib 65 lub zog siab tuaj yeem ua rau lub caij nplooj ntoos hlav rov qab - ua qhov kev sim khoov ua ntej los kho cov cuab yeej.
Rau kev ua tubular: Siv seamless lossis welded raj mills tsim rau siab -lub zog steel, nrog mandrels los tiv thaiv phab ntsa thinning.
Hot Forming (For Thick Sections >25 hli):
Preheat rau 900-1100℃(1650-2010℃F) (austenitic ntau yam) thiab tsim nyob rau hauv lub qhov rais kub ntawm 800-1000 degree.
Txias maj mam kom tsis txhob muaj kev ntxhov siab ntxiv - cua txias txaus; zam dej quenching (kev pheej hmoo patina puas thiab brittleness).
Tsis txhob tsim qis dua 700 degree; Qhov no ua rau tawg thiab cuam tshuam cov khoom siv kho tshuab.
Vuam Kev Ua Zoo Tshaj Plaws (Critical for Joint Integrity)
Welded pob qij txha muaj nyob rau hauv cov txheej txheem sib dhos- xyuas kom lawv phim Qib 65 lub zog:
Filler Hlau Xaiv: Siv AWS E7018 (Shielded Hlau Arc Vuam / SMAW) los yog ER70S-6 (Gas Metal Arc Welding/GMAW) fillers-lawv phim cov hlau 450 MPa yield zog thiab corrosion kuj.
Preheating (For Thick Sections >12mm los yog huab cua txias): Preheat rau 150-200℃los tiv thaiv qhov txias txias, muaj kev pheej hmoo tseem ceeb hauv siab - lub zog Corten Steel.
Vuam Tshuab: Siv luv luv arc ntev (2-3mm) thiab stringer hlaws dai (tsis weave hlaws) los tswj cov cua sov input (15-25 kJ / mm). Cov cua kub ntau dhau degrades lub patina thiab ua rau lub tshav kub tsis muaj zog- thaj chaw cuam tshuam (HAZ).
Tshaj tawm - Weld Care: Tshem tawm slag thiab spatter tam sim ntawd; maj mam zom cov npoo npoo kom rov ua cov txheej txheem patina zoo ib yam -tsis txhob pleev xim rau welds.
Ncej -Kev Kho Mob los Tiv Thaiv Patina & Kev Ua Haujlwm
Thaum tsim los yog welded, tiv thaiv steel lub ntsiab kom zoo dua:
Ntxuav kom huv si: Tshem tawm cov khoom seem (roj, roj, hlau shavings) nrog cov tshuaj ntxuav me me thiab dej- cov neeg nyob hauv zos ua rau muaj kev xeb.
Zam kev puas tsuaj abrasive: Hla sandblasting (nws tshem tawm cov kev tiv thaiv patina); siv ib lub txhuam txhuam rau lub teeb ntxuav xwb.
Khaws kom raug: Khaws cov khoom tsim kom qhuav thiab npog kom tsis txhob muaj patina ntxov ntxov los yog xeb thaum khaws cia.
Feem ntau yuam kev kom zam
Overheating Thaum Vuam: Ua rau HAZ softening thiab patina degradation - lo rau 15-25 kJ / mm tshav kub input range.
Siv cov khoom siv tsis sib xws: Tsawg-cov khoom ua kom zoo (xws li, cov ntsiab lus sulfur siab) ua rau cov pob qij txha tsis muaj zog thiab txo cov corrosion kuj.
Rushing txoj kev: Txias- ua rau ntawm kev kub ceev lossis tsis muaj kev sim ua rau cov kab nrib pleb thiab deformation mus tas li.
Nyob rau hauv cov ntsiab lus, fabricating thiab tsim ASTM A871 Qib 65 Corten Steel ntse hinges ntawm leveraging nws formable zog, ua raws li nruj vuam thiab kub txheej txheem, thiab tiv thaiv nws patina. Nrog rau cov lus qhia siv tau no, koj tuaj yeem tsim kev cai siab - lub zog ntawm cov khoom siv uas khaws cov hlau ruaj khov, lub zog, thiab qis- cov txiaj ntsig kev saib xyuas tau ntau xyoo.
