Kutentha mankhwala normalizing ndondomeko

Njira yowonongeka ndi njira yochizira kutentha yomwe chitsulo chimatenthedwa mpaka 30-50 ° C pamwamba pa Ac3 (kapena Acm), ndiyeno itakhazikika mumlengalenga mutatha nthawi yoyenera yosungira kutentha. Kutentha kwachitsulo ku 100-150 ℃ pamwamba pa Ac3 kumatchedwa kutentha kwapamwamba kwambiri.

Cholinga chachikulu cha normalizing kwa sing’anga ndi otsika mpweya zitsulo castings ndi forgings ndi konza dongosolo. Poyerekeza ndi annealing, pearlite lamellae ndi ferrite njere pambuyo normalizing ndi bwino, kotero mphamvu ndi kuuma ndi apamwamba.

Chifukwa cha kuuma kochepa kwachitsulo chochepa cha carbon pambuyo pa annealing, chodabwitsa cha kumamatira ku mpeni chimachitika panthawi yodula, ndipo ntchito yodula imakhala yosauka. Powonjezera kuuma mwa normalizing, ntchito yodula ikhoza kusinthidwa. Zigawo zina zapakati za carbon structural zitsulo zitha kusinthidwa ndikukhazikika ndikutentha kuti zichepetse kutentha. ntchito.

Chitsulo cha hypereutectoid chimakhala chokhazikika ndikutenthedwa ndi mpeni pamwamba pa Acm, kotero kuti cementite yomwe poyamba inali mauna imasungunuka mu austenite, kenako itakhazikika pamlingo wachangu kuletsa mpweya wa simenti pamalire ambewu ya austenite, potero Iwo akhoza. Chotsani network carbide ndikuwongolera kapangidwe ka chitsulo cha hypereutectoid.

Zigawo zowotcherera zomwe zimafunikira mphamvu zowotcherera zimasinthidwa kuti zisinthe mawonekedwe ake ndikuwonetsetsa mphamvu ya weld.

Panthawi yochizira kutentha, magawo okonzedwawo amayenera kukhala okhazikika, ndipo zida zamakina zomwe zimafunikira zisonyezo zamakina ziyenera kukhazikika ndikuzimitsidwa ndikukhazikika kuti zikwaniritse zofunikira zamakina. Pambuyo normalizing, sing’anga ndi mkulu aloyi zitsulo ndi forgings lalikulu ayenera kupsa mtima pa kutentha kuthetsa nkhawa mkati kwaiye pa normalizing.

Zitsulo zina za alloy zimasinthidwa pang’ono popanga zida zolimba. Pofuna kuthetsa dongosolo loipali, pamene normalizing imatengedwa, kutentha kwa normalizing kumakhala pafupifupi 20 ℃ kuposa kutentha kwachibadwa mwa kutentha ndi kusunga kutentha.

The normalizing ndondomeko ndi osavuta, amene amathandiza kuti normalizing ndi forging zinyalala kutentha, amene angapulumutse mphamvu ndi kufupikitsa mkombero kupanga.

Zolakwika normalizing ndondomeko ndi ntchito kumapangitsanso minofu kupunduka. Mofanana ndi annealing, njira yothetsera vutoli ndiyofanana.