ASTM A516 Gr70 Boiler Phaj

Nyob rau hauv kev lag luam boiler thiab siab nkoj tsim, kev ntseeg siab ntawm cov ntaub ntawv ncaj qha cuam tshuam cov cuab yeej kev nyab xeeb thiab ntau lawm efficiency. A516 Gr70 steel daim hlau muaj peev xwm tiv taus siab - kub thiab siab - siab, ua rau lawv cov khoom zoo rau lub zog thiab tshuaj lom neeg kev lag luam. Lub ntsiab zoo ntawmASTM A516 Gr70 steel phajdag nyob rau hauv cov tshuaj muaj pes tsawg leeg tswj thiab advanced dov txheej txheem. Cov tshuaj muaj pes tsawg leeg ntawm cov hlau phaj peb tsim nruj me ntsis raws li cov qauv:

• Cov ntsiab lus carbon tsawg dua lossis sib npaug li 0.30%, ua kom muaj qhov sib npaug ntawm weldability thiab toughness.
• Manganese cov ntsiab lus tswj ntawm 0.79-1.30%, ua kom lub zog thiab hardenability ntawm hlau.
• Phosphorus, sulfur, thiab lwm yam teeb meem yog txhua yam tswj tau tsawg dua lossis sib npaug li 0.035%, txo qhov kev pheej hmoo ntawm cov khoom siv brittleness.

Thaum lub sij hawm tsim khoom, cov neeg ua haujlwm nruj me ntsis tswj cov tshuaj muaj pes tsawg leeg los xyuas kom meej cov hlau daim hlau tswj cov khoom siv kho tshuab ruaj khov txawm tias nyob rau hauv qhov kub siab - ib puag ncig. Yog li ntawd, tus txheej txheem ntau lawm thiab meej kev ua tau zoo specifications ntawmASTM A516 Gr70 boiler daim hlauua rau lawv tau lees paub thoob ntiaj teb ua hlau rau boilers thiab cov hlab ntsha siab. Yog tias koj xav tau cov ntaub ntawv ntau ntxiv, thov hu rau peb.

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Ua ntej - vuam kev npaj

• Cov khoom siv ntawm cov khoom siv vuam yuav tsum phim cov A516 Gr70, tshwj xeeb tshaj yog lub zog thiab kev cuam tshuam toughness. Piv txwv li: welding rods, vuam hlau, thiab flux
• Tsawg-hydrogen electrodes yuav tsum tau qhuav ntawm 350-400℃rau 1-2 teev thiab muab cia rau hauv ib lub thawv insulated ntawm 80-100℃los tiv thaiv kom tsis txhob ya raws. Kev nqus dej tuaj yeem ua rau porosity hauv qhov vuam thiab hydrogen embrittlement. Vuam hlau yuav tsum tau ntxuav ntawm cov roj thiab xeb. Vuam flux yuav tsum tau qhuav kom tshem tawm noo noo.
• Cov neeg ua haujlwm yuav tsum xaiv hom zawj uas tsim nyog raws li lub thickness ntawm lub phaj kom paub meej tias tag nrho cov kev nkag mus thiab tiv thaiv tsis tiav fusion tsis xws luag.
• Qhov zawj thiab 20 mm cheeb tsam ntawm ob sab yuav tsum yog hauv av kom nthuav tawm cov hlau nto, tshem tawm xeb, roj, thiab nplai kom tiv thaiv porosity los yog inclusions thaum vuam.
• Cov neeg ua haujlwm yuav tsum tuav cov ntawv pov thawj uas siv tau thiab paub txog cov yam ntxwv vuam ntawm qis- alloy steel kom tsis txhob muaj qhov tsis zoo los ntawm kev ua haujlwm tsis raug.

Vuam txheej txheem

• Vuam tuaj yeem ua tau siv luv luv - arc vuam kom txo cov arc deflection thiab tiv thaiv porosity. Thaum ua haujlwm ntau- txheej, ntau- hla vuam, txhua cov hlaws vuam yuav tsum tau ntxuav ntawm slag, tshuaj xyuas qhov tsis xws luag, thiab tom qab ntawd txheej tom ntej tuaj yeem welded.
• Thaum tua lub arc, lub qhov arc yuav tsum tau ntim kom tiv thaiv arc qhov tawg. Rau cov welds ntev, cov txheej txheem xws li segmented rov qab vuam los yog hla vuam yuav tsum tau siv los txo cov vuam deformation thiab kev ntxhov siab.
• Qhov chaw vuam yuav tsum muaj kev tiv thaiv los ntawm cua, nag, thiab av noo.

Ncej -Kev kho vuam

• Rau cov phaj tuab lossis cov qauv uas muaj kev nruj nruj, kev kho cov tshuaj tshem tawm hydrogen yuav tsum tau ua tam sim ntawd tom qab vuam.
• Kev kho cua sov tuaj yeem txo qhov seem vuam kev nyuaj siab, txhim kho weld toughness, thiab tiv thaiv kev ntxhov siab corrosion tawg. Qhov no yog qhov tseem ceeb tshwj xeeb rau cov hlab ntsha xws li boilers.
• Tom qab vuam, tshem tawm weld slag thiab spatter, thiab ua ib qho kev soj ntsuam ntawm lub vuam. Lub weld yuav tsum tsis muaj qhov tsis xws luag xws li tawg, porosity, inclusions, los yog tsis tiav nkag.
• Cov welds tseem ceeb yuav tsum tau ua qhov tsis yog -kev sim ua kom puas tsuaj kom ntseeg tau tias kev ua tau zoo ntawm sab hauv.

Yuxin tuam txhab yog tus neeg sawv cev hlau. Lub lag luam tseem ceeb ntawm peb lub tuam txhab yog: nruab nrab thiab tuab daim hlau, ductile cam khwb cia hlau yeeb nkab, seamless kav, deformed tuav, thiab lwm yam ntawm Angang, Hangang, Wugang, Nangang, Shagang thiab lwm yam steel nroj tsuag, raws li zoo raws li ntau yam steel hais txog cov khoom. Peb tuaj yeem hloov kho ntau yam kev qhia tshwj xeeb, qhov ntau thiab tsawg, cov ntaub ntawv ntawm daim hlau thiab cov khoom siv hauv tsev rau cov neeg siv nrog lub sijhawm xa khoom sai, txhim khu kev qha zoo, thiab tus nqi zoo.Yog tias koj xav paub ntau ntxiv txog peb cov khoom, thov koj xav xa email tuaj rau peb!

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