Qhov tsis xws luag uas nquag mus faus arc vuam qhov chaw muaj xws li qhov pores, kub tawg, thiab tom ntug.
1. Npuas. Cov npuas feem ntau tshwm sim hauv nruab nrab ntawm txoj kev vuam. Qhov laj thawj tseem ceeb yog tias cov hydrogen tseem muab zais rau hauv cov hlau welded hauv daim ntawv ntawm cov pa npuas. Yog li ntawd, cov kev ntsuas los tshem tawm qhov tsis xws luag yog thawj zaug tshem tawm cov xeb, roj, dej thiab noo noo ntawm vuam hlau thiab welds. Tos rau cov khoom, ua raws li kom qhuav cov vuam kom tshem tawm cov dej noo. Tsis tas li ntawd, nce tam sim no, txo qhov vuam ceev, thiab ua kom qeeb ntawm coagulation ceev ntawm melting hlau.
2. Sulfur cracks (kev tawg los ntawm leej faj). Welding sulfur bias bands nrog cov phaj muaj zog (tshwj xeeb tshaj yog mos boiling steel) Cov kab nrib pleb uas ua rau hauv cov hlau welded. Yog vim li cas yog tias muaj hydrogen nyob rau hauv cov sulfur sib txawv txoj siv uas muaj cov ntsiab lus qis-melting thiab hlau hauv cov hlau. Yog li ntawd, txhawm rau tiv thaiv qhov no, kev siv semi-semi-static steel lossis sedative steel nrog ib txoj siv tshuaj tsawg dua kuj zoo. Qhov thib ob, kev ntxuav thiab ziab ntawm qhov chaw vuam thiab vuam yog tsim nyog.
3. Kub tawg. Nyob rau hauv faus arc vuam, kub tawg tuaj yeem tsim nyob rau hauv cov welded channel, tshwj xeeb tshaj yog cov kab nrib pleb yuav tshwm sim ntawm arcs thiab arcs. Txhawm rau tshem tawm cov kab nrib pleb no, cov ntaub qhwv feem ntau yog ntsia rau ntawm lub arc thiab arc tawm ntawm lub arc, thiab cov kauv raj tuaj yeem thim rov qab thiab welded nyob rau hauv cov welded vuam ntawm qhov kawg ntawm cov menyuam. Thaum qhov kub tawg yog qhov kev ntxhov siab heev, lossis SI hauv cov hlau vuam yog siab, nws yog feem ntau yuav tsim.
4. Ntim ntawm vuam slag. Vuam residue yog ib feem ntawm cov welding residue nyob rau hauv welded hlau.
5. Cov qib vuam tsis zoo. Sab hauv thiab sab nraud weld hlau tsis sib tshooj txaus, thiab qee zaum tsis welded. Qhov teeb meem no yog hu ua tsis txaus vuam degree.
6. tom. Qhov tom yog V-shaped zawj nyob rau hauv nruab nrab ntawm lub weld raws qhov nruab nrab ntawm lub weld. Lub tom ntug yog generated yam tsis muaj qhov zoo vuam ceev, tam sim no, voltage thiab lwm yam kev mob. Ntawm lawv, qhov vuam ceev yog siab dhau ntawm qhov tam sim no tsis haum rau qhov tsis xws luag. Cov yeeb nkab yog muab faib rau hauv tib cheeb tsam, thiab nws yog siab tshaj qhov qub faus arc stitch vuam yeeb nkab.
