ERNiCrMo-3 MIG Hlau

ERNiCrMo-3 yog nickel-raws li alloy vuam hlau ua raws li AWS A5.14 kev faib tawm hauv American Welding Society (AWS) tus qauv, belongs rau nickel-chromium- molybdenum (Ni-Cr-Mo) alloy system. Nws cov tshuaj muaj pes tsawg leeg yog ua los ntawm npib tsib xee (Ni), nrog rau cov ntsiab lus ntxiv xws li chromium (Cr), molybdenum (Mo), thiab niobium (Nb), pom zoo corrosion kuj, siab - kub stability, thiab weldability. Qhov vuam hlau no tau siv dav hauv nuclear fais fab, tshuaj, thiab kev lag luam marine engineering, thiab tshwj xeeb tshaj yog tsim rau vuam Hastelloy C-276 (UNS N10276) thiab zoo li corrosion-resistant alloys.

ERNiCrMo-3 welding hlau nthuav tawm kev ua tau zoo heev hauv qhov chaw muaj corrosive heev:

Kev ua haujlwm rau hauv cheeb tsam corrosion: siab tsis kam rau pitting corrosion, crevice corrosion, thiab kev nyuaj siab corrosion cracking (SCC), ntaus nqi rau synergistic nyhuv ntawm molybdenum (18-20%) thiab chromium (14-17%).

Kev tawm tsam rau cov kua qaub uas muaj zog: kev ua tau zoo heev hauv cov uas tsis yog -oxidizing acids xws li sulfuric acid, hydrochloric acid, thiab phosphoric acid, thaum tseem ua rau cov tshuaj chloride-muaj (Cl⁻) ib puag ncig (xws li dej hiav txwv thiab ntsev tsuag).

Oxidation-txo dual- theem corrosion kuj: Nyob ruaj khov nyob rau hauv ob qho tib si oxidizing media (xws li nitric acid) thiab txo cov xov xwm (xws li ib puag ncig uas muaj hydrogen sulfide).

Lub Zog Kub Kub: Ua kom muaj zog tensile siab thiab nkag siab txawm tias siab tshaj 600 degree, haum rau siab - kub thiab siab - cov cuab yeej siv siab.

Oxidation Resistance: Chromium tsim cov oxide zaj duab xis ntom ntom (Cr₂O₃) ntawm qhov kub thiab txias, tiv thaiv oxidation ntxiv.

Tag nrho - txoj hauj lwm vuam: Haum rau TIG (GTAW), MIG (GMAW), thiab PAW (Plasma Arc Vuam), tshwj xeeb tshaj yog tsim rau nyias daim hlau thiab me me - txoj kab uas hla yeeb nkab vuam.

Tsawg kub cracking nyiam: Microalloying nrog niobium (Nb) suppresses tsim ntawm vuam kub tawg.

Molten pool fluidity: Nruab nrab fluidity ntawm cov deposited hlau, uas ua rau aesthetically pleasing weld tsim, tsawg spatter, thiab yooj yim fusion nrog lub hauv paus hlau.

• Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob: Vuam ntawm cov phab ntsa sab hauv ntawm cov hlab ntsha ntawm lub zog nuclear; welding ntawm tshav kub hloov raj hauv chav generators.
• Cov Khoom Siv Tshuaj: Sulfuric acid / hydrochloric acid reactors, heat exchangers, thiab corrosive Cheebtsam ntawm catalytic cracking units.
• Marine Engineering: Seawater desalination pipelines; chloride ion corrosion-cov qauv tiv thaiv rau kev sib sib zog nqus- hiav txwv drilling platforms.
• Roj thiab Gas: Roj thiab roj zoo pipelines uas muaj hydrogen sulfide (H₂S); liquefied natural gas cia tanks.

 

 

Cov kev ceev faj

* Vuam ntawm cov hlau tsis sib xws: Thaum vuam nrog carbon steel lossis stainless hlau, txheej txheej hloov pauv yuav tsum tau tsim los tiv thaiv cov pa roj carbon tsiv teb tsaws thiab tsim cov theem nkig.

* Cov yam ntxwv Arc: Vim lub siab tiv taus ntawm nickel-raws li alloys, qhov hluav taws xob tsis tu ncua thiab txo cov xaim pub ceev yuav tsum tau ua thaum MIG vuam.

* Kev soj ntsuam yuav tsum tau ua: Lub vuam yuav tsum tau soj ntsuam los ntawm kev ntsuam xyuas penetrant (PT) lossis kuaj hluav taws xob (RT) kom ntseeg tau tias qhov tsis muaj porosity thiab tsis tiav fusion defects.

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