Ciwon sanyidalilai: mutumin da za a yi wa walda a lokacin da babban ƙarfi mai ƙarfi zai iya raguwa cikin sauƙi a cikin aikin sanyaya ƙarfin walda; Yawan sanyaya walda ya yi latti don tserewa ragowar hydrogen a cikin walda, atom ɗin hydrogen da aka haɗa da kwayoyin hydrogen zuwa yanayin gas a cikin ramuka masu kyau na karfe kuma yana haifar da matsi mai yawa, don haka karfe na gida mai sanyi ya fashe. matsa lamba mai yawa; walda danniya da tensile danniya bincike tare da mayar da hankali a kan hydrogen embrittlement da hardening faruwa a lokaci guda sauki kafa lokacin sanyi fatattaka.

Matakan rigakafin: preheat da jinkirin sanyaya bayan waldawa, lalata yankin austenite da ke fama da zafi na iya zama isasshen zafin jiki, don guje wa taurin nama, yayin da rage rawar danniya a cikin walda; dace hypothermia bayan walda annealing, dehydroepiandrosterone jiyya, kawar da danniya da aka haifar a lokacin waldi, da kuma yaduwa na hydrogen a kan dace hanya zuwa waje don zuwa; zaɓi na ƙananan nau'in lantarki nau'in hydrogen da juzu'in alkaline ko austenitic bakin karfe waldi waya, da dai sauransu, abubuwan amfani da ake buƙatar bushewa da tsagi mai tsafta; kariya da ƙarfafa walƙiya walda a saman tsaftacewa, don kauce wa kutsawa na hydrogen; zabi m waldi bayani dalla-dalla, ta amfani da m taro da waldi jerin.