Kusiyanitsa pakati pa 420 420J1 ndi 420J2 kapangidwe ka chitsulo chosapanga kapangidwe kake:
Kusiyana kwakukulu pakati pa chitsulo chosapanga dzimbiri 420J1 ndi 420J2
420J1 ili ndi kuvala kwina kotsutsana ndi kuwonongeka kwa kutukuka, kuvuta kwambiri, ndipo mtengo wake ndiwotsika wa mipira yachitsulo. Ndioyenera malo ogwirira ntchito omwe amafunikira chitsulo chosapanga dzimbiri.
Benyu ya chitsulo osapanga dzimbiri ndi mtundu wa chitsulo chosapanga dzimbiri lomwe limapangidwa molingana ndi miyezo ya America; Japan Standard Sus420j2, New National
Chitsulo chosapanga dzimbiri: Pambuyo pozaza, kuuma kumakhala kokwera, ndipo kukana kwa nthaka ndikwabwino (magnetic). Pambuyo pakuunjika, chitsulo 420J2 sichitsulo chovuta kuposa chitsulo cha 420J1 (magnetic).
Nthawi zambiri, kutentha kwamphamvu kwa 420j1 ndi 980 ~ 1050 ℃. Kuumitsa kwa 980 ℃ ℃ Kutenthetsa mafuta kuwiritsa kumakhala kotsika kwambiri kuposa kuwononga mafuta 1050 ℃ Kutenthetsa mafuta. Kulimbana pambuyo pa 980 ℃ Kuunika kwamafuta ndi hrc45-50, komanso kuuma pambuyo pa 1050 ℃ Kuunika kwa mafuta ndi 2hrc pamwamba. Komabe, micrestrucs yomwe itayikidwa pambuyo pa 1350 ℃ imakhala yopanda tanthauzo. Ndikulimbikitsidwa kugwiritsa ntchito 1000 ℃ ℃ ℃ ℃ ℃ ℃ ℃ khazikitsani mawonekedwe ndi kuuma.
Chitsulo chosapanga dzimbiri 420 / 420J1 / 420j2 ma sheets & ma strates ofanana:
Wofanana | Jis | Werkstoff nr. | BS | Ogolera | Sis | Osakwana | Nthenda |
SS 420 | Sus 420 | 1.4021 | 420s29 | - | 2303 | S42000 | 420 |
SS 420J1 | Sus 420J1 | 1.4021 | 420s29 | Z20C13 | 2303 | S42010 | 420L |
SS 420J2 | Sus 420J2 | 1.4028 | 420s37 | Z20C13 | 2304 | S42010 | 420m |
Ss420 / 420J1/ 420j2 ma sheets, amapukutira mapangidwe a mankhwala (zitsulo za saky):
Giledi | C | Mn | Si | P | S | Cr | Ni | Mo |
Sus 420 | 0.15 max | 1.0 max | 1.0 max | 0.040 Max | 0.030 Max | 12.0-14.0 | - | - |
Sus 420J1 | 0.16-0.25 | 1.0 max | 1.0 max | 0.040 Max | 0.030 Max | 12.0-14.0 | - | - |
Sus 420J2 | 0.26-0.40 | 1.0 max | 1.0 max | 0.040 Max | 0.030 Max | 12.0-14.0 | - | - |
SS 420 420J1 420J2 sheet, maliro makina (zitsulo zosayera):
Giledi | Kukhala mphamvu max | Mphamvu (0,2% Offlet) Max | Elongition (mu 2 mkati.) |
420 | Mpa - 650 | Mpa - 450 | 10% |
420J1 | MPA - 640 | MPA - 440 | 20% |
420j2 | MPA - 740 | MPA - 540 | 12% |
Kuumitsa kwa magawo 420 steel pambuyo pa kutentha kwa hrc52 ~ 55, komanso magwiridwe antchito osiyanasiyana monga kukana kuwonongeka sikwachilendo. Chifukwa ndizosavuta kudula ndi kupukuta, ndizoyenera kupanga mipeni. 420 Chitsulo chopanda dzimbiri chimatchedwanso "kudula" gawo la martietitic. 420 mndandanda wachiwiri ndi kuchuluka kwa dzimbiri chifukwa cha zomwe zili pansi ma carbon (ma carbon zomwe zilipo: 0.16 ~ 0.25), ndiye kuti ndichitsulo chabwino pakupanga zida zogwirira.
Post Nthawi: Jul-07-2020