Chitsulo chosapanga dzimbiri chosagwira kutentha nthawi zambiri chimagawidwa m'magulu atatu, 309S, 310S ndi 253MA, chitsulo chosagwira kutentha nthawi zambiri chimagwiritsidwa ntchito popanga ma boiler, ma turbine a nthunzi, ng'anjo zamafakitale ndi ndege, petrochemical ndi magawo ena amafakitale m'zigawo zogwirira ntchito zotentha kwambiri.
1.309s: (OCr23Ni13) mbale yachitsulo chosapanga dzimbiri

Makhalidwe: Imatha kupirira kutentha mobwerezabwereza pansi pa 980 ℃, ndi mphamvu yotentha kwambiri, kukana okosijeni ndi kukana carburizing.
Kugwiritsa ntchito: zinthu za uvuni, zingagwiritsidwe ntchito popanga zitsulo zotentha, zomwe zili ndi chromium yambiri ndi nickel zimatsimikizira kukana dzimbiri komanso kukana okosijeni.
Poyerekeza ndi austenitic 304 alloy, imakhala yolimba pang'ono kutentha kwa chipinda. M'moyo weniweni, imatha kutenthedwa mobwerezabwereza pa 980 ° C kuti igwire ntchito bwino. 310s: (0Cr25Ni20) mbale yachitsulo chosapanga dzimbiri.
2.310s: (OCr25Ni20) mbale yachitsulo chosapanga dzimbiri

Makhalidwe: Chitsulo chosapanga dzimbiri cha chromium-nickel austenitic chokhala ndi mphamvu zabwino zamakina otentha kwambiri komanso kukana dzimbiri mu oxidizing media. Choyenera kupanga zigawo zosiyanasiyana za uvuni, kutentha kwambiri kwa 1200 ℃, kutentha kogwiritsidwa ntchito kosalekeza kwa 1150 ℃.
Ntchito: ng'anjo, zida zoyeretsera magalimoto.
Chitsulo chosapanga dzimbiri cha 310S ndi chitsulo chosapanga dzimbiri cha austenitic chosagwira dzimbiri chomwe chimagwiritsidwa ntchito m'malo osiyanasiyana otentha kwambiri komanso owononga. Ndi chisankho chabwino kwambiri chogwiritsidwa ntchito m'mafakitale opanga petrochemical, chemical, ndi kutentha, komanso pazinthu zina zotenthetsera ng'anjo ndi zina zotenthetsera kwambiri. Mbale yachitsulo chosapanga dzimbiri ya 310S ndi pepala losalala, lopyapyala lopangidwa ndi chitsulochi.
3.Mbale yachitsulo chosapanga dzimbiri ya 253MA (S30815)

Makhalidwe: 253MA ndi chitsulo chosapanga dzimbiri cha Austenitic chosagwira kutentha chomwe chapangidwira ntchito zomwe zimafuna mphamvu zambiri zoyenda komanso kukana dzimbiri. Kutentha kwake kogwira ntchito ndi 850-1100 ℃.
253MA ndi mtundu winawake wa aloyi yachitsulo chosapanga dzimbiri yomwe idapangidwira kugwiritsidwa ntchito kutentha kwambiri. Imapereka kukana bwino kwambiri ku okosijeni, sulfidation, ndi carburization kutentha kwambiri. Izi zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito m'mafakitale osiyanasiyana, kuphatikizapo omwe amakhudza kutentha ndi dzimbiri, monga mafuta, kupanga magetsi, ndi mafakitale a uvuni.Mapepala a 253MA ndi zidutswa zopyapyala komanso zosalala zopangidwa ndi alloy iyi. Amagwiritsidwa ntchito m'njira zosiyanasiyana pomwe kuphatikiza kwa kukana kutentha kwambiri ndi kukana dzimbiri ndikofunikira. Mapepalawo amatha kudulidwa ndikupanga mawonekedwe osiyanasiyana kuti akwaniritse zofunikira za polojekiti.
Mapepala 253MA, Mapepala Opangira Mankhwala
| Giredi | C | Cr | Mn | Si | P | S | N | Ce | Fe | Ni |
| 253MA | 0.05 – 0.10 | 20.0-22.0 | 0.80 pasadakhale | 1.40-2.00 | 0.040 pasadakhale | 0.030 pasadakhale | 0.14-0.20 | 0.03-0.08 | Kulinganiza | 10.0-12.0 |
Makhalidwe a makina a 253MA Plate
| Kulimba kwamakokedwe | Mphamvu Yopereka (0.2% Offset) | Kutalika (mu mainchesi awiri) |
| Psi: 87,000 | Psi 45000 | 40% |
Mbale ya 253MA Kukana dzimbiri ndi malo ogwiritsira ntchito kwambiri:
1. Kukana Kudzikundikira: 253MA ili ndi kukana kwabwino kwambiri kwa okosijeni, kukana dziku kutentha kwambiri, komanso mphamvu yayikulu yamakina kutentha kwambiri. Imagwira ntchito bwino kwambiri mkati mwa kutentha kwa 850 mpaka 1100°C.
2. Kuchuluka kwa Kutentha: Kuti igwire bwino ntchito, 253MA ndi yoyenera kugwiritsidwa ntchito mkati mwa kutentha kwa 850 mpaka 1100°C. Pa kutentha kwapakati pa 600 ndi 850°C, kusintha kwa kapangidwe kake kumachitika, zomwe zimapangitsa kuti kulimba kwa kutentha kwa chipinda kuchepe.
3. Mphamvu ya Makina: Aloyi imaposa zitsulo zosapanga dzimbiri wamba, monga 304 ndi 310S, pankhani ya mphamvu yogwira ntchito kwakanthawi kochepa pa kutentha kosiyanasiyana ndi kupitirira 20%.
4. Kapangidwe ka Mankhwala: 253MA ili ndi kapangidwe ka mankhwala koyenera komwe kamathandiza kuti igwire bwino ntchito kutentha kwa 850-1100°C. Imakhala ndi kukana kwambiri okosijeni, imapirira kutentha mpaka 1150°C. Imaperekanso kukana kwabwino kwambiri kwa kukwawa ndi mphamvu ya kukwawa kwa kukwawa.
5. Kukana Kudzikundikira: Kuwonjezera pa kuthekera kwake kutentha kwambiri, 253MA imalimbana bwino ndi dziku kutentha kwambiri komanso dziku burashi m'malo ambiri okhala ndi mpweya.
6. Mphamvu: Ili ndi mphamvu yochuluka komanso mphamvu yokoka pa kutentha kwakukulu.
7. Kukhazikika ndi Kutha Kulumikizana: 253MA imadziwika ndi kukhazikika kwake, kusinthasintha, komanso kusinthasintha kwa makina.
Nthawi yotumizira: Okutobala-09-2023