A lokacin sarrafa mold
Maganin zafin da ba daidai ba zai haifar da fashewar mold da ɓarkewar wuri, musamman idan kawai ana amfani da quenching da tempering, ba tare da quenching ba, sa'an nan kuma tsarin nitriding na surface, fashewar saman da fatattaka zai faru bayan dubban mutuwar-simintin sau.
Damuwar da ke haifarwa lokacin da aka kashe karfe shine sakamakon babban matsayi na damuwa na thermal yayin sanyaya da damuwa na tsari yayin canjin lokaci. Quenching danniya shine dalilin nakasawa da tsagewa, kuma dole ne a yi fushi don kawar da damuwa.
a lokacin da mutu simintin samarwa
Ya kamata a fara zafi da ƙura zuwa wani zafin jiki kafin a samar da shi, in ba haka ba, lokacin da aka cika narkar da ƙarfe mai zafi mai zafi, za a yi sanyi, wanda zai haifar da karuwar zafin jiki na ciki da na waje na mold, wanda ya haifar da sakamakon. damuwa na thermal, fashewa ko ma tsagewa a saman mold.
A lokacin aikin samarwa, yawan zafin jiki yana ci gaba da tashi. Lokacin da yawan zafin jiki ya yi zafi sosai, yana da sauƙi don samar da gyare-gyare masu ɗorewa, kuma sassan motsi sun kasa haifar da lalacewa ga mold surface.
Ya kamata a saita tsarin kula da zafin jiki mai sanyaya don kiyaye ƙirar ƙirar aiki zafin jiki a cikin wani takamaiman kewayon.
tushe tushe
