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1. Kala soocida iyo sifooyinka physicochemical
Qaab abaabuleed | Caadiyan | Gaar ah | Caadiyan |
Nooca jirka ee Ferritic | 1. Iska caabin sare | 1Dhibaato aad u fiican oo iska caabin daxalka ah | 0Cr13 (405) |
1Cr17 (430) | |||
Nooca Martensitic | 1. U janjeedha in la adkeeyo waa weyn tahay, kaarboonka ku jirana wuu la kordhiyaa. | 1Cr13 (410) | |
Nooca Austenitic | 1Isku-dhafka fidinta toosan waa weyn yahay | 0Cr18Ni9(304) | |
0Cr19Ni11(308) | |||
0Cr23Ni13(309) | |||
0Cr25Ni20 (310) | |||
0Cr17Ni12Mo(316) | |||
0Cr17Ni12Mo2Nb/Ti(318) | |||
0Cr19Ni13Mo3(317) | |||
1Cr18Ni9Ti(321) | |||
0Cr18Ni11Nb(347) | |||
0Cr20Ni25Mo5Cu2(385) | |||
O-iron duplex | 1. Iska caabin daxalka intergranular 2 stress iska caabin daxalka 3 iska caabin godad | 00Cr22Ni5Mo3N(2205) | |
Nooca adkeynta roobabka | 1. Adag sare 2 caag liidata | 0Cr17Ni4Cu4Mo2(630) |
Nooca jirka ee Ferritic
Nooca Martensitic
Nooca Austenitic
Adkeynta roobabka
Labo: habka alxanka
Doorashada alaabta alxanka ah ee birta ah waa inay raacaan mabda'a "midnimada".
1. Ferritic steel steel Haddii habka alxanka lagu kululeeyo 430-480 °C wakhti dheer oo si tartiib ah loo qaboojiyo, aad bay u fududahay in la soo saaro 475 °C dillaacsan, wasakhduna waxay ka ciyaari doontaa door firfircoon. Habka alxanka ayaa ku talinaya alxanka hooseeya, alxanka degdega ah, oscillation lahayn, iyo xakamaynta heerkulka hoose inta lagu jiro alxanka multilayer. Si loo alxanayo qaybo-shaqo qaro weyn, tollaynta alxanka waa in la tumaa si loo yareeyo walbahaarka yaraanta.
2. Martensitic ahama birta kuleylku saamaysay ebrittlement iyo alxanka dildilaaca qabow ayaa loo baahan yahay si looga fogaado inta ugu badan ee suurtogalka ah marka alxanka, guud ahaan qaado preheating u dhiganta ka hor alxanka (150-300 °C) iyo daaweynta kulaylka post-alxanka (700-750 °). C) cabbiraadda, isticmaalka tamarta khadka weyn, haddii loo baahdo, waxaad dooran kartaa qalabka alxanka austenitic.
3. Austenitic steel steel Qodobbada saamaynta leh ee dildilaaca kulul iyo daxalka intergranular ayaa ah tixgalinta aasaasiga ah ee alxanka birta aan fiicnayn, marka la eego astaamaha jireed, tamar yar oo toosan waa in loo qaataa alxanka, qaboojinta degdega ah, iyo heerkulka hoose ee interlayer waa in la xakameeyo marka alxanka multilayer. Ku dadaal inaad ka koobnaato qadarka saxda ah ee ferrite markaad alxanayso si aad uga hortagto inay dhacaan dildilaaca kulaylka. Warshadaha petrochemical sida reactors hydrogenation iyo alaabooyin kale oo gaar ah, tirada ferrites (FN) ee alxanka ayaa si cad loo qeexay, guud ahaan loo baahan yahay 3-10.
4. Awstaria-birta birta ah ee birta ah waxay leedahay u janjeera dildilaac hooseeya marka la barbar dhigo birta austenitic; Marka la barbar dhigo birta birta ah, alxanka ka dambeeya waa mid hooseeya, sidaas darteed waxay leedahay alxanka aad u fiican, kulaylka ka hor iyo kuleyl ka dib toona ma jiro dildilaaca alxanka oo soo baxay. Si kastaba ha ahaatee, marka la kululeeyo heerkulka sare, waxaa jira u janjeera in hadhuudh ah si ay u koraan, iyo tamar toosan yar waa in la qaato marka alxanka.
5. Birta adag ee roobka da'aya awgeed adkaanta sare, adkaanta liidata iyo caagagga birta noocaan ah, iyo culayska haraaga alxanka weyn, way fududahay in la soo saaro dildilaaca. Habka alxanka oo la mid ah birta martensitic waa lagu talinayaa, laakiin kulaylka ka hor wuxuu u baahan yahay in la kordhiyo.
Fiiro gaar ah:Heerarka AWSA5.9 ee Fiilooyinka Birta ah ee Aan-Aabaha lahayn iyo Filler-ka iyo YB/T5092 Heerka Birta Daama ee Alxanka ayaa dhigaya in falanqaynta kiimikaad ee shaybaarada dhalaalay ee siligga la isku daray ama go'doonsan ama fiilada buuxinta ay tahay tijaabada kaliya ee looga baahan yahay soocidda alaabtan foomamka. Taasi waa, qalabka farsamada iyo imtixaanada kale, sida waafaqsan baahida macaamiisha.
Taxanaha GES-gacan ee aan birta lahayn, xarafka ugu dambeeya ee B ee magaca badeecada ayaa tilmaamaya jaakada buluuga ah, R waxay muujinaysaa jaakada cas, sida GES-308R waxay ka dhigan tahay jaakad cas GES-308, GES-312B waxay u taagan tahay maqaarka kiniinka buluuga ah GES-312 .
Waqtiga boostada: Oct-13-2022