304 qaybo tuubo oo gidaar qaro weyn leh si loo xakameeyo cabbirka hadhuudhka inta lagu jiro daawaynta kulaylku waa lama huraan, kuleylkeeda tayada lagu daaweeyay 304 tuubo qaro weyn oo bir ah ayaa leh saameyn aad u muhiim ah.

Waa kuwan sida loo xakameeyo cabbirka cabbirkiisa hadhuudhka Habka Kooban sida soo socota.
(1) Dooro kuleyl macquul ah
Heerkulka kulaylku aad ayuu u hooseeyaa, habka samaynta austenitic 304 birta dhumucdiisuna waxay tahay mid gaabis ah, xitaa si buuxda uma samayn karo, daaweynta kulaylku ma gaari karto shuruudaha. Heerkulka kulaylka aad buu u sarreeyaa, way fududahay in la helo miraha austenite oo aan dhab ahayn. Sababta hoos u dhaca waxqabadka. Waa in ay noqotaa doorasho macquul ah heerkulka kulaylku way kala duwan tahay iyada oo ku xidhan dhawr qaybood oo ka mid ah ka kooban kiimikaad ee 304 birta birta qaro weyn tuubooyinka, qaabka iyo size qaybo ka mid ah, wax kasta oo shuruudo gaar ah, isbedel ku cross qaybta iyo shuruudaha farsamo gaar ah.

(2) Go'aanso wakhti macquul ah iyo qaybaha dahaarka ugu wanaagsan ee ujeedada kulaylka iyada oo loo marayo, iyo 304 qaybo bir ah oo austenitic ah oo ku filan tuubo derbi qaro weyn leh.
Qabashada waqti iyada oo la tixgelinayo labada dhibcood waa mid aad u dheer ama sababay hadhuudh austenite weyn ayaa kordhin doona wareegga wax soo saarka, yaraynta waxtarka, daaweynta kulaylku maaha mid ku habboon in la xakameeyo ururka saxda ah ee asalka asalka ah ee asalka ah wuxuu saameeyaa birta bilawga ah Sidaa darteed, xajmiga hadhuudhka biraha kaarboonka sare ee birta, si looga hortago kulaylka iyo cimri dhererka kordhay, dooro urur yar oo kala duwanaansho spherical annealing; ... loogu talagalay kululaynta-soo noqnoqda sare ee crystal loo arkaa inay leeyihiin kululaynta degdeg ah, heerkulka kulaylku waa waqti sare waa gaaban, sidaas asalka ah. naadi ka dib markii la doortay kala firidhsan weyn ee pearlite lamellar ganaax ama deminta iyo daawaynta dabci. Dooro nuxurka hadhuudhka wanaagsan 304 birta-dhuuban tuubo qaro weyn leh si aad u kululaato dareenka dabeecadda yar ee birta-cagaaran, sidaas darteed xaaladaha kuleylka caadiga ah ee caadiga ah waxay xaqiijinayaan miraha austenite.