Vuam yog ib feem tseem ceeb ntawmstainless hlau tube uathiab muaj ntau yam kev siv hauv ntau qhov chaw. Nws yog ib qho tsim nyog los xyuas kom meej qhov zoo ntawm cov khoom txhawm rau txhim kho kev nyab xeeb ntawm cov khoom. Txawm li cas los xij, cov khoom siv vuam tsis zoo yog qhov tsis zoo hauv kev tsim khoom, stainless hlau yeeb nkab tawg yog qhov tsis xws luag thiab txaus ntshai heev, uas tsis tsuas yog ua rau cov khoom seem tab sis kuj tuaj yeem ua rau muaj xwm txheej loj. Yog li ntawd txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhav, nws yuav tsum tau txiav txim siab, nws yuav tsum tau txiav txim siab los txiav txim siab txog qhov ua tau zoo ntawm cov welding.
Stainless hlau muaj ntau yam hlau ntsiab lus, xws li chromium, npib tsib xee, carbon, hlau, thiab lwm yam, nws yog vim lawv lub xub ntiag uas nws muaj ductility zoo thiab corrosion kuj. Txawm li cas los xij, yog tias covstainless hlau tubenyob rau hauv cov ntsiab lus siab ntawm cov ntsiab lus carbon, cov khoom yuav nyuaj. Vim tias 304 stainless hlau yeeb nkab yog ib qho nyuaj thiab tsis yooj yim rau vuam, yog li nws muaj peev xwm tawg tom qab vuam.
Yog tias cov khoom siv vuam siv tsis raug, ua rau cov yeeb nkab steel nws tus kheej tsis tuaj yeem txhawb nqa, thaum kub thiab siab loads yuav tsim creep, austenitic welded pob qij txha ntawm embrittlement thiab high-temperature condensation dej los ntawm thermal stress deformation kuj yuav ua rau deformation thiab cracking ntawm stainless hlau yeeb nkab.
Weld seam ntawm 304 stainless hlau yeeb nkab yog nthuav tawm rau sab nraud, uas kuj yog ib qho ntawm cov ua rau tawg, thiab qis tensile zog ntawm 304 stainless hlau yeeb nkab kuj yuav ua rau muaj qhov tshwm sim tawg. Qhov tseeb, muaj ntau yam laj thawj rau cracking stainless hlau welded yeeb nkab, qhov sib txawv ntawm qhov sib txawv ntawm qhov kev daws teeb meem tsis zoo ib yam, thiab peb tsis tuaj yeem saib txhua yam teeb meem, tsis hais txog kev siv cov kev sib koom ua ke los daws lawv.
Stainless hlau yeeb nkab tawg, qhov ua tau yog vim li casstainless hlau tubeyog nyias dhau lawm, muaj lwm qhov laj thawj rau yuav cov hlau tsis muaj steel tsis yog 304 lossis 316, yog 201, 202 ntawm hom nickel cov ntsiab lus tsis tuaj yeem ncav cuag tus qauv, uas yog, yuav xeb hom stainless hlau; Yog tias tsis tau twv kom raug yuav tsum yog hydrogen embrittlement, hydrogen atomic nkag mus rau hauv cov ntaub so ntswg hlau, thiab tom qab ntawd kev sib xyaw ntawm carbon tshwm sim los ntawm decarbonization ntawm cov hlau, thiab tom qab ntawd ua rau qhov tshwm sim tawg no, pom cov kab nrib pleb nrawm hloov nws, txaus ntshai heev, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias yog qhov yuav tshwm sim ntau dua.
Yog hais tias koj tseem yog ib tug ceev welding304 stainless hlau yeeb nkab tawg, tsis quav ntsej qhov zoo ntawm vuam yuav ua rau vuam puas. Ob qhov xwm txheej no feem ntau ntsib thaum peb ua haujlwm, lub sijhawm no peb yuav tsum tshem tawm cov pa phem ntawm lub welded interface, thiab tom qab ntawd kho qhov ceev kom zoo thaum vuam tuaj yeem ua tiav.
Muaj ntau yam teeb meem thaum peb welded stainless hlau yeeb nkab, peb tsis nco qab siv ib puag ncig kev tiv thaiv thiab combustion gas, thiab ces ncaj qha cuam tshuam rau oxidation ntawm welded qhov chaw, vuam interface mus nqa tawm lub ntuj yog ib qho yooj yim ua rau puas. Yog li peb yuav tsum tau ceev faj kom cov roj combustion thiab siv tsim nyog. Qhov no tuaj yeem zam tau 304 stainless hlau yeeb nkab vuam txheej txheem tawg thiab tawg tshwm sim.
Cov saum toj no yog cov ntsiab lus tseem ceeb ntawmua rau stainless hlau yeeb nkab vuam tawg. Qhov tshwm sim ntawm stainless hlau yeeb nkab vuam tawg yuav tsum muaj 2 yam muaj nyob, uas yog, kev nyuaj siab thiab corrosion nruab nrab, thiab chloride ion concentration, kub yog ib qho tseem ceeb ua rau corrosion. Thiab tuaj yeem txheeb xyuas los ntawm lub tshuab tsom iav dendritic tawg yog qhov kev ntxhov siab corrosion tshwm sim los ntawm chloride ions.