1.What yog cov nyom ntawm vuam galvanized steel?
Cawv ntawm zinc txheej: lub ntsiab lus melting ntawm zinc (419 degree) yog qhov qis dua li ntawm cov hlau (1538 degree). Thaum lub sij hawm vuam, txheej zinc
Corrosion nyob rau hauv tshav kub-cuam tshuam rau thaj chaw: kev kub siab yuav rhuav tshem qhov kev tiv thaiv ntawm zinc txheej, thiab cov carbon steel substrate yog nquag tiv thaiv xeb, yuav tsum tau ntxiv los tiv thaiv xeb, yuav tsum muaj kev tiv thaiv xeb ntxiv.
Spcat thiab Arc Qhov Chaw Tsis Txaus Siab: Zinc Vapor cuam tshuam nrog Arc Stabilation, ua rau Molting ntawm Molten ntawm molt tsim.
2.What yog cov nyom ntawm cov vuam hlau tsis muaj qhov twg?
Intergranular kev pheej hmoo: Austenitic Stainless hlau (xws li muaj 304) yog nquag mus rau lub cev muaj zog (CR23C6)
Kub nyhiab: stainless hlau uas muaj cov ntsiab lus nickel siab (xws li muaj kev sib tsoo tsawg, thiab cov kab nrib kub tuaj yeem tshwm sim hauv qab kev ntxhov siab.
Hlawv ntawm alloy cov ntsiab lus: qhov kev kub siab yuav ua rau oxidation ntawm alloy thiab molybdenum, tsis muaj zog muaj peev xwm ua zaj duab xis passive, thiab txo kev ua kom muaj zog.
3.Qhov yog qhov sib txawv ntawm pretreatment ntawm galvanized steel thiab stainless hlau ua ntej vuam?
Galvanized steel pretreatment
Tshem cov txheej zinc txheej: qhov chaw vuam yuav tsum tau polished lossis kho tshuab txiav kom tshem tawm cov kab zinc vapor los ntawm kev cuam tshuam qhov zoo ntawm weld.
Yog tias nws tsis yooj yim sua kom tshem tawm cov zinc, "Hla vuam" lossis sib quas vuam siv tau los txo cov zinc ib txheej cua sov. Tu tu: Tshem tawm impurities xws li roj thiab xeb kom tsis txhob muaj Slag suav nrog hauv Weld.
Pretreatment of stainless steel to avoid contamination: Wipe the surface with acetone or alcohol to prevent pollutants such as grease and iron filings from introducing impurities such as carbon and sulfur, which may cause intergranular corrosion or cracks.
Tswj kev ntxhov siab: preheat tuab cov phaj ua ntej vuam (tsawg dua los yog sib npaug ntawm 150 degree) los kom txo cov kev kub ntxhov vuam, tab sis zam kev paub txog qhov kub thiab txias.
4.What yog cov kev siv vuam rau galvanized steel?
Kev tuav Arc Vuam, roj thaiv cov neeg siv vuam, ua haujlwm vuam (chaw vuam \/ coam vuam)
5.Qhov twg yog cov txheej txheem vuam rau cov hlau tsis muaj zog?
Tungsten arc vuam, hlau arc vuam, ntshav arc vuam