dusha Qalabka adkeynta adkeynta – ifafaale daaweynta kulaylka sareeyo

Ordinary overheating: the heating temperature of the surface induction hardening device is too high or the holding time at high temperature is too long, which causes the austenite grains to become coarser, which is called overheating. In the quenching process, the coarse austenite grains easily lead to a decrease in the strength and toughness of the steel, which increases the brittle transition temperature and increases the possibility of deformation and cracking.

Sababaha kulaylka badan waa: qalabka heerkulka foornada oo xumaada ama isku darka (sida caadiga ah jaahilnimada habka).

Xaaladaha caadiga ah, qaabka kululaynta ayaa la tirtiraa, caadi ahaan ama si isdaba joog ah ayaa loo kululeeyaa heerkulka sare, ka dibna la hagaajiyay si loo nadiifiyo miraha.