Chipboard Screw:
1. Maganin zafi: Hanya ce ta dumama karfe zuwa yanayin zafi daban-daban sannan a yi amfani da hanyoyin sanyaya daban-daban don cimma dalilai daban-daban na canza kayan karfe.Maganin zafi da aka saba amfani da su sune: quenching, annealing, and tempering.Wane irin tasiri waɗannan hanyoyin guda uku za su haifar?
2. Quenching: Hanyar maganin zafi wanda karfe yana zafi sama da digiri 942 don yin lu'ulu'u na karfe a yanayin austenitic, sannan a nutsar da shi cikin ruwan sanyi ko sanyaya mai don kashewa don yin lu'ulu'u na karfe a cikin yanayin martensitic.Wannan hanya na iya ƙara ƙarfi da taurin karfe.Akwai babban bambanci sosai a cikin ƙarfi da taurin ƙarfe tare da lakabi iri ɗaya bayan quenching kuma ba tare da kashewa ba.
3. Annealing: Hanyar maganin zafi wanda karfen kuma ana dumama shi zuwa yanayin austenitic sannan kuma a sanyaya shi a cikin iska.Wannan hanya na iya rage ƙarfi da taurin karfe, inganta sassaucinsa, da sauƙaƙe aiki.Gabaɗaya, ƙarfe zai bi ta wannan matakin kafin sarrafa shi.
4. Tempering: Ko an kashe shi, an cire shi ko an buga shi, karfe zai haifar da damuwa na ciki, kuma rashin daidaituwa na damuwa na ciki zai shafi tsarin da kayan aikin injiniya na karfe daga ciki, don haka ana buƙatar tsari mai zafi.Ana kiyaye kayan da dumi a ci gaba da zafin jiki fiye da digiri 700, an canza danniya na ciki sannan kuma a sanyaya ta halitta.
