Cov txheej txheem ntau lawm ntawm vuam steel kav yog siv ntau txoj kev molding, xws li ntau yam molding txoj kev los yog dabtsi yog khoov yob nyob rau hauv qhov yuav tsum tau tus ntoo khaub lig-section zoo nrog ntau txoj kev sib sau, thiab ces siv sib txawv welding txoj kev rau welded vuam nrog txawv vuam txoj kev nrog sib txawv welding. txoj kev. Tau cov yeeb nkab steel. Yog li ntawd, qhov tsis xws ntawm vuam steel kav yog muab faib ua ob ntu: steel phaj vuam tsis xws luag thiab niam cov khoom tsis xws luag.
Weld defect yog hais txog qhov tsis xws luag tsim nyob rau hauv lub vuam thaum vuam los yog tom qab vuam. Nws muab faib ua cov kab nrib pleb, qhov pores, seem, tsis muaj pov thawj, tshem tawm, tom npoo thiab lwm yam welds. Cov quav tuab tuab thiab nyob hauv Weld yog ntom peb-kev tsis txaus ntseeg. Cracks thiab unconstituted blends yog tiaj tus thiab muaj teeb meem. Strip-like slag thiab unpestrated yog strip-zoo li tsis xws luag, uas yog teeb meem. Pores, me me residue, thiab lwm yam yog qhov zoo li qhov tsis xws luag.
Qhov tsis xws luag hauv cov welding feem ntau yuav ua rau lub zog thiab plasticity ntawm cov yeeb nkab steel, uas cuam tshuam rau qhov zoo ntawm cov yeeb nkab steel, thiab qhov zoo ntawm cov kav hlau vuam ncaj qha cuam tshuam rau kev nyab xeeb thiab kev pabcuam lub neej ntawm cov roj thiab roj. txoj kev thauj mus los. Yog li kev soj ntsuam xyuas nyob rau hauv kev pheej hmoo tsis xws luag xws li cov kab nrib pleb, qhov pores, residue, unproof, thiab unloading.
Qhov tsis xws luag hauv daim hlau tau dov, thiab feem ntau ntawm lawv yog tiaj tus-puab thiab sib npaug rau saum npoo. Lub ntsiab tsis xws luag yog txheej txheej, lwm yam, kab nrib pleb, folding, thiab lwm yam. Cov txheej yog cov feem ntau nyob rau hauv tsis xws luag. Cov txheej yuav tsim ntau yam kab nrib pleb. Thaum lub rooj tsavxwm yog perpendicular rau qhov kev ntxhov siab saum npoo, txheej txheej yuav cuam tshuam rau lub zog ntawm cov yeeb nkab steel. Nws yog qhov tsis xws luag uas tsis tso cai rau muaj nyob.
