Chithandizo cha kutentha chimagwiritsidwa ntchito kusintha zinthu zakuthupimaunyolo ozungulira zitsulo, kawirikawiri kuonjezera mphamvu ndi kuvala makhalidwe a unyolo wozungulira ulalo conveyor pamene kusunga kulimba kokwanira ndi ductility ntchito.Chithandizo cha kutentha chimaphatikizapo kugwiritsa ntchito kutentha, kuzizira mofulumira (kuzimitsa), ndipo nthawi zina ngakhale kuzizira kwa zigawo zikuluzikulu mpaka kutentha kwambiri kuti mupeze zotsatira zomwe mukufuna.
Zitsulo zonse zimakhala ndi mtundu wina wa microstructure.Mamolekyu amasintha malo akatenthedwa.Chitsulocho chikazimitsidwa, mamolekyu amakhalabe mu microstructure yatsopano, ndi kuchuluka kwa kuuma ndi kuyembekezera mphamvu ndi kuvala kukana kwa chigawocho.Zigawo za unyolo zimatenthedwa padera musanayambe kusonkhana, zomwe zimathandiza kukhazikitsa cholinga cha gawo lililonse kuti likhale labwino.Pali njira zambiri zochizira kutentha zomwe zingagwiritsidwe ntchito kusintha milingo ya kuuma ndi kuya.Njira zitatu zodziwika bwino zochizira kutentha kwa zigawo za unyolo ndi:
Kupyolera mu kuumitsa
Kupyolera mu kuumitsa ndi njira yowotchera, kuzimitsa ndi kutenthetsa maunyolo ozungulira.Njirayi imaumitsa ndikulimbitsa zinthu mofanana mu gawo lonse la maunyolo, mosiyana ndi njira zina zomwe zimangoumitsa kunja.Chotsatira chake ndi chitsulo chosungunuka chomwe chimakhala cholimba komanso champhamvu, komabe chimakhala ndi ductility chokwanira komanso cholimba.
Carburizing - Kuwumitsa mlandu
Carburizing ndi njira yowonetsera zitsulo ku carbon kuti ziwumitse pamene zitsulo zikutenthedwa.Kuonjezera kaboni pamwamba pa chitsulo kumasintha kapangidwe kake kake kuti kamveke bwino pochiza kutentha ndikusunga kulimba kofewa, kocheperako.Mpweya umangotengedwa pamalo owonekera, ndipo kuya kwa mpweya wolowera kumayenderana ndi nthawi yomwe yakhala mung'anjo, chifukwa chake amatchedwa kuuma kwa ng'anjo.Kuwumitsa milandu kumapangitsa kuti zitsulo zikhale zolimba kuposa njira zina zowumitsa, koma kuumitsa kwamilandu kumatha kutenga nthawi yambiri ndipo ndikokwera mtengo kwambiri.
Kukhazikika kwa induction
Mofanana ndi kuumitsa, kumafuna njira yowotchera ndikuzimitsa, koma kugwiritsa ntchito kutentha kumayendetsedwa mwadongosolo kudzera mu induction process (mphamvu maginito).Kuumitsa kwa induction nthawi zambiri kumachitika ngati njira yachiwiri kuwonjezera pakuumitsa.Njira yowongolera yowongolera imachepetsa kuya ndi mawonekedwe akusintha kowuma.Kuwumitsa kwa induction kumagwiritsidwa ntchito kulimbitsa gawo linalake la gawo, osati gawo lonse.
Ngakhale kuti chithandizo cha kutentha ndi njira yabwino komanso yovuta kwambiri yowonjezeretsa khalidwe la maulalo ozungulira, kupanga maunyolo apamwamba kwambiri, okhalitsa amafunikira njira zina zambiri zopangira monga kupinda ndi kuwotcherera.
Nthawi yotumiza: Mar-31-2023