Fasalka:20 bir ah
Heerka:GB / T 699-1999

astaamo
Xoojinta ayaa waxyar ka sarreeya 15 bir ah, oo dhif ah, ma jiraan wax xanaaq ah oo jilicsan oo laqabsanaa oo la jeexjeexay khayaanada khafiifka ah, sida qafiifka ah ee loo yaqaan 'al-qaniinyada'.
Birta waxaa iska leh birta kaarboon-ka-hooseeya ee kaarboon-ka-hooseeya, ka-soo-kabashada qabow ee birta adag, steel, si fiican u adag, oo ah abtirsiinyo, xoog, awood-beel ah oo ah 35500mpa.
Caadidadu waxay horumarin kartaa sphereid-ka birta, waxay nadiifin kartaa proeututetoid-ka weyn ee Ferrite, iyo hagaajinta waxqabadka goynta ee mareenada ka yar 160hbs
Wadada tikniyoolajiyada eebirQeybaha u dhinta waa: Xarkaha ayaa u dhinta madhan oo ku dhinta mashiinka mashiinka ka-saarista mashiinka ka-saarista mashiinka ka-saarista mashiinka ka-saarista mashiinka mashiinka mashiinka ah ee jilicsan

ka kooban kiimikada
C: 0.17% ~ 0.24%
Si: 0.17% ~ 0.37%
MN: 0.35% ~ 0.65%
S: 0.035%
P: 0.035%
CR: 0.25%
NI: 0.25%
Cu: 0.25
Hantida farsamada
Awoodda TSenle B (MPA): ≥410 (42)
Soo saar xoog s (MPA): ≥245 (25)
Elongabinta 5 (%): ≥25
Hoos u dhigista bisadaha aagga (%): 55 ama ka badan
Adkene: Ha kululayn, ≤156Hb
Cabbirka muunad: muunad muunad: 25mm

Macluumaadka kale

Xadhigga daaweynta kuleylka: caadi ahaan, 910 ℃, qaboojinta hawada.

Qaab dhismeedka Metallogram: Ferrite + Pearlite.
Daaweynta kuleylkaee birta 20 oo aad u jilicsan oo jilicsan oo bir ah. 20:
Kuleylista kuleylka 20 bir ah
1. Ka dib mashiinnada qallafsan, shaqada shaqada ayaa loo daadanayaa oo dhan daaweynta kuleylka (920 ℃ brine-ka kulul), ka dibna wax ka qabashada shuruudaha adag ee 30-35hrc, wax aan ka ahayn ganaaxyada gudaha iyo banaanka goobada gawaarida.
2. Miisaaniyad isku mid ah oo jilicsan, dusha sare ee dusha sare ama miiska oo keliya oo kacsan oo kacsan (iyadoo kuxiran cabirka shaashadda), iyo dhamaadka dhammaadka.
3. Caddijir iyo sumcad, inaad shiidiso godka gudaha iyo xaafada.
Qulqulka geeddi-socodka ayaa ah kan labaad, saddexaad iyo inta badan.
● Qeexitaanka Gobolka: Gaarsiinta Gobolka Daaweynta kuleylka ama daaweynta kuleylka (qaribka, caadi ahaan ama heerkulka sare ama heerkulka sare) .Maxaad ku qoran tahay xaaladda kuleylka. Haddii aan la tilmaamin, gaarsiinta waa in la dhigaaDaaweynta kuleylka.