Ebirungo ebikola eddagala: C2.05, SI1.40, MN 0.78, CR 26.03, NI0.81, MO0.35
Enkola y'okulongoosa ebbugumu etera okukozesebwa ey'ekyuma ekisuuliddwa ekinene chromium kwe kubuguma okutuuka ku 950 ~ 1000℃, n'oluvannyuma oluvannyuma lwa 200 ~ 260℃ez'ebbugumu eri wansi.
Obuwoomi bw’obuwunga bw’ebbugumu eringi 1140~1180℃insulation for 16h air cooling, esobola nnyo okulongoosa obugumu bw’okukuba n’okuziyiza okwambala. Enzijanjaba ya spherical ey’ebbugumu eringi esobola okufuula carbides zonna globular, esobola okumalawo oba okukendeeza ku kwawula obuzito obunene ne continuous network carbide ku matrix, spherical carbide ewagirwa matrix esingawo, naddala nga ewagirwa omuwendo ogugere ogwa austenite. Singa obudde bw’okuziyiza (insulation time) bukendeera mu ngeri esaanidde, ebitundu by’ekitundu ekigonvu nabyo bisobola okukola obulungi. Obutabeera na nkola eno kwe kuba nti enkola eno enywa amaanyi mangi ag’ebbugumu.
Ebbugumu okutuuka ku 1050℃, n’oluvannyuma okole 550℃tempering, effect ejja kuba etya?
Okufuga sipiidi y’okufumbisa, kirungi okukuuma ebbugumu okumala ekiseera ekigere ku ssaawa 650. Nze nkikozeeko emabegako, ku muliro gwokka. Obukakanyavu busobola okutuuka 61- - - -65 HRC .
Enkola enkuze eri nti: okusuula oluvannyuma lw’okugonza n’okuzimbulukuka, okwangu okukola, okukola oluvannyuma lw’okuzikira okunyogoza empewo n’ebbugumu eri wansi okutuuka ku kukendeeza ku situleesi. Okukozesa obukaluba okutwalira awamu kyetaagisa ku HRC 58-62, okusinga okukozesebwa ng’ebitundu bya slurry pump n’ebitundu ebirala eby’okwambala n’okwambala.
Tuli high chromium production base, okutwalira awamu providing CR 24, CR 26, CR 28, CR15MO3, n’ebirala, omuli okugonza annealing wakati n’okuzikira n’okukkakkanya. Kati tukozesa okuzikira amazzi okuzikiza, ebipimo by’enkola y’okuzikira bye bino: 650 degrees insulation okumala essaawa 2, okubugumya okutuuka ku 960 degrees insulation okumala essaawa 3.5 okuzikira; Ebbugumu ly'obusungu 380 ~400,4~6 essaawa insulation. Okusenya omupiira okulaga φ 40- φ 80.
Enkola eri 1050 nga ezikiza + 250 ~ 350 .
