Omusenyu-Okukyusa Ekitundu ky'Ekyuma ky'Omupiira Okusuula Ebitundu
QT450-10 .
QT 450-10 eraga amaanyi g’okumenya aga 450MPa n’okuwanvuwa 10%. Beite ekolebwa ferrite ne carburization, nga kino kye kiva mu austenite co-analysis. Okufuna obukaluba bwa pearite yokka, kiteekwa okupimibwa okuva mu kitundu eky’okwekenneenya awamu (0.77%) ekyuma. Obukaluba bwa ferrites busobola okupimibwa okuva mu kyuma kyokka nga kaboni alimu ebitundu ebitakka wansi wa 0.0218%.
Omutindo: GB / T1348-2009 (mu kifo kya GB / T 1348-1988)
● Ebifaananyi n’obunene bw’okukozesa:
Ferrite type ductile cast iron, obugumu obw’amaanyi n’obuveera. Ku bbugumu eri wansi, obugumu bukyuka ne bufuuka brittleness, naye omuwendo gw’okukuba kw’ebbugumu eri wansi guli waggulu, era waliwo okuziyiza okulala eri enkyukakyuka y’ebbugumu ey’amaanyi n’okuziyiza okukulukuta. Ekozesebwa nnyo mu kulima, empagi y’enkumbi, ennyumba ez’enjawulo mu byuma by’ebyobulimi, ku mubiri gwa vvaalu, ssiringi za puleesa eya waggulu n’eya wansi mu byuma okutwaliza awamu, n’enkoofiira y’ekyuma ku layini z’amasannyalaze.
● Ebirungo ebikola eddagala:
Kaboni C: 3.70~4.00% .
Silikoni SI: 2.15~2.93%
MN MN: 0.46~0.66%
Ekibiriiti S: 0.010~0.016%
Phosphorous P: 0.027~0.035%
Magnesium MG: 0.027~0.050%
Tombarthite Re:
Ekifananyi kya kaboni: 4.3~4.6.
● Ekintu eky’ebyuma:
Amaanyi g’okusika σ b (MPA): 450 .
Embeera Amaanyi g’amakungula σ 0.2 (MPa): 250 .
Omuwendo gw’okuwanvuwa δ (%): 10 .
Obukakanyavu: 160 ~ 210 HB .
● Entegeka y’okulongoosa ebbugumu n’enteekateeka y’ebyuma:
Okulongoosa mu kulongoosa ebbugumu: okusuulibwa oba okukuma omuliro .
Alographic tissue: esuuliddwa: graphite + ferrite (ekitundu kya matrix) + pearlite .
Omuliro omulungi: Graphite + obululu obusingawo + ferrite, asobola okufuna ebyuma ebijjuvu eby’ebyuma naddala obuveera n’okulongoosa obugumu.
QT600-3.
Erinnya ly’ekintu: Ekyuma ekikuba ebyuma (ductile iron) .
● Ebifaananyi n’obunene bw’okukozesa:
Bead light body type ductile cast iron, nga erina amaanyi ga wakati n’amaanyi, medium toughness ne plasticity, omulimu omujjuvu ogw’amaanyi, okuziyiza okwambala okulungi n’okukendeeza okukankana okulungi, okukola obulungi enkola y’okusuula. Kisobola okukyusa omulimu gwayo nga kikozesa ebbugumu ery’enjawulo. Okusinga ekozesebwa ku buli kika kya power mechanical crankshaft, camshaft, connecting shaft, omuggo oguyunga, ggiya, clutch plate, hydraulic cylinder block n’ebitundu ebirala
● Ebirungo ebikola eddagala:
Kaboni C: 3.0~3.5.
Silikoni SI: 2.4~2.8.
Mn Mn: 0.3~0.5.
Ekibiriiti S: 0.03~0.035 .
Phosphorus P:<0.1
Magnesium MG: 0.045~0.05 .
Weetegereze: RXOY: 0.033~0.049
● Ekintu eky’ebyuma:
Amaanyi g’okusika σ b (MPA): 600 .
Embeera Amaanyi g’amakungula σ 0.2 (MPa): 370 .
Omuwendo gw’okuwanvuwa δ (%): 3 .
Obukakanyavu: 190 ~ 270 HB .
Densite: 7.3 mu t / m oba g / cm .
● Entegeka y’okulongoosa ebbugumu n’enteekateeka y’ebyuma:
Ebbugumu Okulongoosa: (Ekigereddwa Omugabi, Wammanga ye Heat treatment specification of a sample, for reference) 930 degre
Ekibiina kya Alographic: Pearlite + Ferrite.
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