Lub vuam ntawm cov kav hlau tsis muaj steel feem ntau muaj cov hauv paus vuam, txhaws vuam thiab npog vuam. Lub hauv qab vuam ntawm stainless hlau yeeb nkab yog qhov tseem ceeb tshaj plaws ntawm stainless hlau yeeb nkab vuam. Nws tsis yog tsuas yog cuam tshuam txog qhov zoo ntawm qhov project, tab sis kuj tseem cuam tshuam nrog kev nce qib ntawm qhov project. Tam sim no, rov qab vuam ntawm stainless hlau yeeb nkab yog muab faib ua ob txheej txheem: rov qab-filling thiab tsis-argon filling. Argon-filled rov qab tiv thaiv yog muab faib ua khoom xaim + TIG txheej txheem thiab khoom xaim + TIG + txheej txheem dej-soluble ntawv; rov qab tsis muaj argon-filled tiv thaiv yog muab faib ua flux-cored hlau thaub qab thiab vuam pas nrig (coated hlau) thim rov qab TIG vuam.
Cov vuam hauv qab ntawm stainless hlau feem ntau siv cov txheej txheem TIG. Raws li qhov xwm txheej ntawm qhov chaw, peb tuaj yeem siv plaub txoj hauv qab no rau hauv qab vuam.
01. Cov txheej txheem ntawm kev thaiv qhov cua thiab kev tiv thaiv los ntawm kev siv cov thaiv thaiv sab nraub qaum (uas yog, cov khoom siv vuam hlau + TIG)
Thaum cov yeeb nkab stainless hlau yog prefabricated, qhov vuam sib txuas feem ntau tuaj yeem tig thiab welded, thiab qhov cua yog yooj yim heev. Nyob rau lub sijhawm no, cov phaj thaiv feem ntau yog siv los thaiv thiab ua pa ntawm ob sab ntawm lub vuam sib txuas hauv cov raj xa dej los tiv thaiv cov vuam hauv qab, thiab tib lub sijhawm, sab nraud yog kaw nrog daim ntaub nplaum. thaiv.
Thaum vuam, cov txheej txheem ntawm qhov cua ua ntej thiab nres cov roj tom qab yuav tsum tau saws. Cov ntaub nplaum sab nrauv yog rhais tawm thaum vuam. Txij li thaum lub phaj thaiv yog tsim los ntawm cov roj hmab thiab cov hlau dawb, nws tsis yooj yim rau kev puas tsuaj, yog li txoj kev vuam no tuaj yeem ua kom zoo rau sab hauv ntawm lub vuam. Sau nrog argon roj thiab xyuas kom meej nws purity, thiaj li ua tau zoo xyuas kom meej tias cov hlau nyob rau hauv lub weld tsis oxidized, thiab xyuas kom meej qhov zoo ntawm weld backing.
02. Tsuas yog siv cov ntawv soluble lossis sib xyaw ua ke ntawm cov ntawv soluble thiab thaiv cov ntawv thaiv kev thaiv thiab kev tiv thaiv qhov cua (xws li cov khoom siv vuam hlau + TIG + cov ntawv dej-soluble)
Thaum qhov chaw nres nkoj ruaj khov ntawm cov yeeb nkab stainless hlau raug ntsia thiab welded, nws yog qhov nyuaj rau kev ua pa rau sab hauv, thiab qee sab yog yooj yim dua los thaiv. Hauv qhov no, daim ntawv dej-soluble + thaiv phaj tuaj yeem siv rau kev sib khi. Ntawd yog, sab uas yooj yim rau qhov cua thiab tshem tawm tau yooj yim yog kaw nrog lub rooj tsav xwm thaiv, thiab sab uas tsis yooj yim rau qhov cua thiab nyuaj rau tshem tawm cov thaiv thaiv phab ntsa yog thaiv nrog dej-soluble ntawv.
Thaum welding qhov chaw nres nkoj stainless hlau, nyob rau hauv ntau zaus, yuav tsis muaj qhov cua ntawm ob sab ntawm lub vuam. Nyob rau lub sijhawm no, yuav ua li cas los xyuas kom meej kev tiv thaiv ntawm argon filling hauv weld ua ib qho teeb meem nyuaj. Nyob rau hauv qhov tseeb kev tsim kho ntawm qhov chaw, peb siv dej-soluble Txoj kev ntawm sealing nrog daim ntawv, ventilating los ntawm qhov chaw ntawm lub weld seam, thiab pasting sab nraud nrog nplaum ntaub ntse daws tau cov teeb meem saum toj no.
Thaum cov ntawv dej-soluble siv los kaw qhov cua, vim tias qhov cua yog los ntawm qhov nruab nrab ntawm lub vuam seam, nyob rau hauv qhov kawg sealing txheej txheem yuav tsum tau rub tawm sai sai, thiab cov seem argon yuav tsum tau siv los tiv thaiv, thiab hauv qab yuav tsum tau ua kom tiav sai thiab lub qhov ncauj yuav tsum tau muab kaw.
Nrog rau txoj kev no, nws yuav tsum tau muab sau tseg tias cov dej-soluble ntawv yuav tsum tau muab ob-txheej, thiab nws yuav tsum tau muab pasted zoo, txwv tsis pub cov dej-soluble ntawv yuav yooj yim puas thiab poob tawm, thiab lub puab weld yuav plam kev tiv thaiv. argon gas, thiab oxidation yuav tshwm sim, ua rau lub vuam raug txiav thiab rov qhib dua. Vuam tsis tuaj yeem lav qhov vuam zoo, tab sis kuj tseem cuam tshuam rau lub sijhawm tsim kho, yog li kev tshuaj xyuas nruj yuav tsum tau ua ua ntej vuam, thiab cov ntawv dej-soluble yuav tsum tau pasted.
Hauv ntau qhov chaw tsim kho, peb tau siv txoj kev vuam no rau kev thim rov qab, nws qhov zoo tuaj yeem lav tau zoo, thiab nws kuj yog qhov nyuaj rau kev tsim, yog li ceev faj thiab cov kws tshaj lij vuam yuav tsum raug xaiv rau txoj haujlwm no.
03. Sab nraub qaum tsis muaj kev tiv thaiv los ntawm argon roj, thiab cov khoom siv flux cored hlau + TIG txheej txheem yog siv.
Txoj kev no tau siv nyob rau hauv peb lub teb chaws rau ntau xyoo, thiab flux-cored vuam hlau xws li E308T1-1, E308LT1-1, E309T1-1, E309LT1-1, 347T1-1, E316T1-1, E316LT1-1 tau tsim , thiab tau siv rau hauv thaj chaw Cov vuam tau ua tiav cov txiaj ntsig kev lag luam zoo dua.
Txij li thaum sab nraub qaum tsis muaj argon, nws qhov zoo yog qhov pom tseeb, xws li kev ua haujlwm siab, kev yooj yim, thiab tus nqi qis, thiab nws tsim nyog rau kev teeb tsa ntawm qhov chaw tsim kho. Txawm li cas los xij, vim nws cov yam ntxwv ntawm cov qauv, flux-cored vuam hlau muaj qhov yuav tsum tau ua rau cov welders thaum lub sijhawm ua haujlwm. Nws cov xov hlau pub ceev ceev ceev thiab qhov tseeb ntawm cov hlau pub mis yog siab, yog li nws nyuaj rau tus tswv. Welders yuav tsum tau kawm tshwj xeeb thiab txawj ua ntej lawv tuaj yeem koom rau hauv vuam. Hauv Nanjing Yangba thiab cov chaw tsim kho txawv teb chaws, peb tau ua tiav qhov kev daws teeb meem uas argon tsis tuaj yeem ua pa ntawm lub rooj sib tham chaw nres nkoj thiab kho qhov chaw nres nkoj los ntawm kev siv cov qauv no.
04. Sab nraub qaum tsis muaj kev tiv thaiv los ntawm argon roj, thiab cov coated vuam hlau (tus kheej tiv thaiv flux-cored vuam hlau) + TIG txheej txheem yog siv
Nyob rau xyoo 1990, Kobelco thiab lwm lub tuam txhab hauv Nyij Pooj tau tsim cov hlau txuas hauv qab. Nyob rau hauv xyoo tas los no, kuv lub teb chaws kuj tau tsim stainless hlau hauv qab vuam hlau (uas yog, coated welding hlau, xws li TGF308, TGF308L, TGF309, TGF316L, TGF347, thiab lwm yam), thiab siv rau kev tsim kho, thiab ua tiav cov txiaj ntsig zoo, peb tau ntse siv txoj kev no hauv kev nthuav dav thiab kev hloov pauv ntawm Wupec.
Cov txheej txheem tiv thaiv ntawm stainless hlau thaub qab hlau + TIG txheej txheem yog qhov rov qab vuam yog tiv thaiv los ntawm cov tshuaj tiv thaiv metallurgical ntawm cov slag tsim los ntawm vuam hlau melting thiab nws cov ntsiab lus alloy, thiab pem hauv ntej weld yog tiv thaiv los ntawm argon, slag thiab alloy ntsiab. .
Thaum siv cov txheej txheem no, cov ntsiab lus ua haujlwm hauv qab no yuav tsum tau them rau: Thaum lub sijhawm vuam, lub kaum sab xis ntawm lub vuam kov, vuam hlau thiab vuam daim yuav tsum tau khaws cia. Lub kaum sab xis zoo tshaj plaws ntawm vuam kov nozzle yog 70 ° -80 °, Lub kaum sab xis yog 15 ° -20 °; kom tswj tau qhov kub ntawm lub pas dej molten, hloov qhov kub ntawm lub pas dej molten los ntawm kev hloov lub kaum sab xis ntawm lub vuam kov thiab lub vuam, hloov qhov vuam ceev, thiab lwm yam, kom ntseeg tau tias qhov vuam zoo nkauj (qhov dav yog tib yam, tsis muaj concave, Convexity thiab lwm yam tsis xws luag);
Thaum lub sijhawm ua haujlwm, qhov tam sim no yuav tsum loj dua me ntsis ntawm cov khoom siv vuam hlau, thiab vuam kov yuav tsum tau hloov me ntsis kom nrawm qhov sib cais ntawm cov hlau molten thiab molten txheej, uas yooj yim rau kev soj ntsuam lub pas dej molten thiab tswj xyuas seb qhov nkag mus. ua kom tiav; Thaum sau cov vuam hlau, nws yog qhov zoo tshaj kom xa nws mus rau 1/2 ntawm lub pas dej molten, thiab nias nws me ntsis sab hauv kom ntseeg tau tias cov hauv paus nkag mus thiab tiv thaiv indentation;
Thaum lub sij hawm vuam, vuam hlau yuav tsum tau pub thiab tshem tawm tsis tu ncua, thiab vuam hlau yuav tsum nyob rau hauv kev tiv thaiv ntawm argon roj, thiaj li tiv thaiv qhov kawg ntawm vuam hlau los ntawm oxidized thiab cuam tshuam rau vuam zoo; Qhov chaw vuam yuav tsum yog hauv av rau txoj kab nqes maj mam ntawm 45 °, thiab yuav tsum tau them nyiaj rau qhov tsis xws luag xws li arc craters thiab shrinkage kab noj hniav thaum kaw lub arc.
Npog vuam hlau yog siv rau hauv qab vuam, thiab cov roj argon tsis siv hauv cov vuam. Kev ua haujlwm ntawm welder yog qhov yooj yim thiab ceev, nrog cov yam ntxwv ntawm kev ua haujlwm siab thiab tus nqi qis. Txoj kev no yog siv los vuam tag nrho ntawm 28 cov pob qij txha thiab cov pob qij txha rov ua haujlwm, thiab qhov kev hla dhau ntawm ib lub sij hawm xaim vuam yog 100%), uas tsim nyog rau peb kev txhawb nqa thiab siv.
Cov saum toj no plaub stainless hlau hauv qab vuam txoj kev muaj lawv tus kheej zoo thiab qhov tsis zoo. Hauv kev tsim kho tiag tiag, peb yuav tsum txiav txim siab tsis yog tus nqi tsim kho nkaus xwb, tab sis kuj tseem muaj cov vuam zoo thiab kev tsim kho raws li cov xwm txheej tshwj xeeb ntawm qhov chaw, thiab xaiv cov txheej txheem tsim kho tsim nyog.
Post lub sij hawm: Mar-15-2023
