Daawaynta kulaylka ee foornada, sababtoo ah awoodda weyn ee foornada kuleylka iyo wakhtiga dheer ee daboolka, isticmaalka tamarta ayaa aad u weyn habka oo dhan, muddo dheer, sida loo badbaadiyo tamarta daaweynta kulaylka ee foornada ayaa la sameeyay. dhibaato adag.

Waxa loogu yeero "insulation eber" deminta, waa in la tilmaamo kuleyliyaha been abuurka ah, oogada iyo xudunta u ah si ay u gaaraan heerkulka kululaynta deminaya, dahaarka lahayn, isla markiiba demin habka qaboojinta. Sida laga soo xigtay aragtida austenitic dhaqameed, been abuurku waa inuu lahaadaa dheer wakhtiga dahaarka ee habka kuleylka, si loo dhamaystiro nukleation iyo korriinka miraha austenitic, kala dirida sibidhka haraaga ah iyo homogenization of austenitic.The hadda quenching iyo kuleylinta technology of forgings waxaa la soo saaray iyada oo la raacayo hagidda aragtida this. Marka la barbar dhigo habka deminta hadda, "ilaalinta kulaylka eber" deminta wakhtiga ilaalinta kulaylka loo baahan yahay by homogenization ee qaab-dhismeedka austenitic, ma aha oo kaliya waxay badbaadin kartaa 20% -30% tamarta, wanaajin kartaa wax soo saarka 20% -30%, laakiin sidoo kale waxay yarayn kartaa ama baabi'in kartaa cilladaha oksaydhka, decarbonization, deformation iyo wixii la mid ah, taas oo ku habboon hagaajinta tayada alaabta.

Marka birta kaarboonka iyo birta aluminiumka ah ee hooseeya ayaa lagu kululeeyaa Ac1 ama Ac2, habka homogenization ee austenite iyo kala dirida carbides ee pearlite waa dhakhso.Marka cabbirka birta ay iska leedahay qaybta khafiifka ah, xisaabinta wakhtiga kuleylka uma baahna in la tixgeliyo. dahaarka kulaylka, taas oo ah, si loo gaaro eber dahaarka quenching. Tusaale ahaan, marka dhexroorka ama dhumucda 45 workpiece steel waa wax ka badan. 100mm, kuleylinta foornada hawada, heerkulka dusha sare iyo xudunta ayaa ku dhow in la gaaro isku mar, sidaas darteed waqtigeeda labbiska ah waa la iska indho tiri karaa, marka la barbar dhigo habka wax soo saarka dhaqameed (r=aD) oo leh isugeynta kuleylka weyn, waxay noqon kartaa hoos u dhacay ku dhawaad ​​20%-25% deminta wakhtiga kulaylka.

Falanqaynta aragtida iyo natiijooyinka tijaabada ah waxay muujinayaan in ay suurtagal tahay in la qaato "dahaarka eber" ee deminta iyo caadiga ah kuleylinta birta qaab dhismeedka geeddi-socodku wuxuu hubin karaa sifooyinka farsamada ee shuruudaha; 45, 35CrMo, GCrl5 iyo qalabka kale ee birta qaab dhismeedka, isticmaalka ee "dahaarka eber" kululaynta ka badan kulaylka dhaqameed badbaadin karaa wakhtiga kulaylka ee ku saabsan 50%, wadarta kaydka tamarta ee 10% -15%, hagaajinaysaa waxtarka 20% -30%, isla mar ahaantaana "eber insulation" habka deminta. waxay ka caawisaa sifaynta hadhuudhka, hagaajinta xoogga.

(laga bilaabo: 168 been abuur net)