440 / 440C mipira yazitsulo zosapanga dzimbiri
|
Chizindikiro |
Zambiri zamalonda |
|
Dzina la Zamalonda: |
440 zosapanga dzimbiri mpira / 440 |
|
Zakuthupi: |
440 / 440C |
|
SIZE: |
0.3mm-80mm |
|
Malimbidwe: |
HRC58-62 |
|
Yopanga Standard: |
ISO3290 2001 GB / T308.1-2013 DIN5401-2002 |
|
Kupanga mankhwala Mwa mipira yazitsulo zosapanga dzimbiri ya 440C |
|
|
C |
0.95-1.20% |
|
Kr |
16.0-18.0% |
|
Si |
1,00% Max |
|
Mn |
1.0% Max. |
|
P |
0,040% Max |
|
S |
0.030% Max |
|
Mo |
0.40-0.80% |
|
Ndi |
0,60% Max |
440—Chida chachitsulo champhamvu kwambiri chokhala ndi mpweya wokwera pang'ono. Pambuyo pa chithandizo choyenera cha kutentha, mphamvu zochuluka zamagetsi zimatha kupezeka. Kuuma kungafikire 58HRC, yomwe ili pakati pazitsulo zolimba kwambiri zosapanga dzimbiri. Chitsanzo chofala kwambiri ndi "malezala". Pali mitundu itatu yomwe imagwiritsidwa ntchito kwambiri: 440A, 440B, 440C, ndi 440F (yosavutamtundu wa processing).
Mfundo za mpira zosapanga dzimbiri:
Zosapanga dzimbiri mipira si dzimbiri umboni, koma zovuta dzimbiri. Mfundo yake ndiyakuti pakuwonjezera kwa chromium, dothi lolimba la chromium oxide limapangidwa pamwamba pazitsulo, zomwe zimatha kuletsa kuyanjananso pakati pazitsulo ndi mlengalenga, kuti mpweya mumlengalenga usalowe muzitsulo mpira, potero kupewa Mphamvu ya mipira yazitsulo.
China National Standards (CNS), Japan Industrial Standards (jis) ndi American Iron and Steel Institute (AISI) imagwiritsa ntchito manambala atatu posonyeza ma steel osapanga dzimbiri, omwe amatchulidwapo kwambiri pamakampaniwa, pomwe mndandanda 200wu ndi chromium-nickel-manganese -based austenitic zosapanga dzimbiri, 300 mndandanda ndi chromium-faifi tambala austenitic zosapanga dzimbiri, 400 mndandanda chromium zosapanga dzimbiri (imadziwika monga chitsulo zosapanga dzimbiri), kuphatikizapo martensite ndi ferrite.
