Mng'alu wozizirazifukwa: munthu kugonjera kuwotcherera pamene lalikulu amakokedwe mphamvu mosavuta anang'ambika m'kati kuziziritsa kuwotcherera zinthu hardness; kuwotcherera kuzirala kunali kochedwa kwambiri kuti athawe wotsalira wa haidrojeni mu weld, atomu ya haidrojeni yomwe imamangiriridwa ku mamolekyu a haidrojeni kupita kumalo a mpweya mu pores zabwino zachitsulo ndikuyambitsa kupanikizika kwambiri, kotero kuti chitsulo chozizira chopangidwa ndi chitsulo chimasweka. kupanikizika kwambiri; kupsinjika kwa kuwotcherera ndi kusanthula kupsinjika kwapang'onopang'ono poyang'ana hydrogen embrittlement ndi kuwumitsidwa kumachitika nthawi imodzi yosavuta kupanga pakusweka kozizira.

Njira zodzitetezera: kutenthetsa ndi kuzizira pang'onopang'ono mutatha kuwotcherera, kuwonongeka kwa zone austenite komwe kumakhudzidwa ndi kutentha kungakhale kokwanira kutentha, kupewa minofu yolimba, ndikuchepetsa gawo la kupsinjika pakuwotcherera; panthawi yake hypothermia pambuyo kuwotcherera annealing, dehydroepiandrosterone mankhwala, kuthetsa nkhawa kwaiye pa kuwotcherera, ndi kufalitsa wa haidrojeni mu nthawi yake kuti apite kunja; kusankha otsika haidrojeni mtundu elekitirodi ndi flux zamchere kapena austenitic zosapanga dzimbiri kuwotcherera waya, etc., consumables chofunika kuyanika ndi okhwima kuyeretsa poyambira; kuteteza ndi kulimbikitsa kuwotcherera welded pamwamba kuyeretsa, kupewa kulowerera wa haidrojeni; sankhani zowotcherera zoyenerera, pogwiritsa ntchito kusonkhana koyenera ndi kutsata ndondomeko yowotcherera.