ERNiCu-7 MIG WIRE

ERNiCu-7 yog nickel- tooj liab alloy vuam hlau uas ua raws li kev faib tawm hauv American Welding Society (AWS) A5.14 tus qauv. Nws cov nominal muaj pes tsawg leeg yog kwv yees li 65% npib tsib xee (Ni) thiab 30% tooj liab (Cu), nrog me me ntawm hlau (Fe), manganese (Mn), titanium (Ti), thiab lwm yam ntxiv rau kev ua haujlwm zoo. Lub vuam hlau no tshwj xeeb tsim los rau vuam nickel{11}} tooj liab alloys (xws li Monel 400, Monel K500, thiab lwm yam) thiab tuaj yeem siv rau kev sib txawv ntawm cov hlau sib txuas (xws li vuam nickel- tooj liab alloys rau carbon steel thiab stainless hlau). Nws cov txiaj ntsig tseem ceeb yog nyob rau hauv nws cov kev tiv thaiv corrosion zoo heev, siab - qhov kub thiab txias, thiab kev ua haujlwm tawg, ua rau nws siv dav hauv marine engineering, cov cuab yeej siv tshuaj, kev lag luam nuclear, thiab siab -kub thiab high-pressure nkoj tsim.

Hom tshuaj muaj pes tsawg leeg (%)

Ni: Ntau dua lossis sib npaug rau 63.0

Kub: 28.0-34.0

Fe: Tsawg dua lossis sib npaug rau 2.5

Mn: Tsawg dua lossis sib npaug rau 2.0

Ti: Tsawg dua lossis sib npaug rau 0.5

C: Tsawg dua lossis sib npaug rau 0.15

Tag nrho lwm yam impurities: Tsawg dua lossis sib npaug rau 0.5

Core Performance

• Corrosion Resistance: Pom zoo corrosion kuj rau cov xov xwm xws li seawater, sulfuric acid, thiab hydrofluoric acid, tshwj xeeb tshaj yog nyob rau hauv chloride kev nyuaj siab corrosion ib puag ncig.
• Siab -Kev Ua Haujlwm Kub: Ua kom ruaj khov cov khoom siv hauv qab 538℃thiab muaj oxidation zoo heev.
• Crack Resistance: Tsawg thermal expansion coefficient thiab zoo ductility txo qhov nyiam rau vuam kub tawg.
• Txheej txheem Adaptability: Haum rau ntau yam vuam txoj kev (GTAW, GMAW, SAW), nrog rau nruab nrab weld hlau fluidity.

Kev npaj ua ntej vuam

Base Hlau Kho: Ua tib zoo ntxuav qhov chaw vuam kom tshem tawm cov roj thiab oxides. Acetone lossis cawv yog pom zoo rau kev ntxuav.

Groove Design: V-groove lossis U-groove, kaum sab xis 60℃-70 degree, hauv paus ntsej muag 1-2mm, qhov sib txawv 2-3mm.

Preheating Control: When the base metal thickness is >12 hli, preheating rau 100-150℃yog yuav tsum tau los tiv thaiv kev tawg vim ceev ceev.

Welding Parameter Xaiv

Gas Shielded Arc Welding (GTAW/GMAW):

Shielding Gas: Ntshiab Ar lossis Ar + Nws (Nws Tsawg dua lossis sib npaug li 25%) cov roj sib xyaw, ntws tus nqi 15-20 L / min.

Ntau yam tam sim no: GTAW DCEN (Direct Current Electrode Negative) 80-150A, GMAW 160-220A.

Welding Wire Diameter: Feem ntau 1.2mm (GMAW), 2.4mm (SAW).

Interpass Kub: Tswj qis dua 150℃los tiv thaiv cov nplej coarsening.

Cov txheej txheem ua haujlwm

Short Arc Vuam: Siv cov hluav taws xob qis thiab qis tam sim no luv luv arc ua haujlwm kom txo tau cov pas dej oxidation.

Kev tswj kev oscillation: nqaim weld hlaws, tsis muaj oscillation lossis me ntsis oscillation kom tsis txhob muaj qhov dav dav weld pas dej.

Arc Termination Treatment: Sau lub qhov crater tiv thaiv kev tawg; siv cov kev ua kom lwj tam sim no yog tias tsim nyog.

Ncej -Kev kho Weld

Kev kho cua sov: Feem ntau tsis tas yuav tsum tau ua, tab sis yog tias yuav tsum tau ua kom muaj kev ntxhov siab, nws raug nquahu kom tuav ntawm 600-650℃rau 1 teev tom qab txias txias.

Kev Tu Nto: Tshem tawm slag thiab oxide txheej; stainless hlau hlau txhuam los yog pickling thiab passivation yuav siv tau.

Marine Engineering: Seawater desalination khoom, marine twj thiab li qub, subsea pipeline vuam.

Cov Khoom Siv Tshuaj: Sulfuric acid cia tanks, hydrofluoric acid reactors, chlor-alkali kev lag luam kub exchangers.

Zog Sector: Nuclear fais fab nroj tsuag cua txias tshuab, geothermal zoo casings, siab -kub chav li qub.

Dissimilar Material Joining: Monel alloy thiab carbon steel hloov cov pob qij txha, stainless hlau thiab npib tsib xee- tooj liab alloy composite lug.

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