Ngokusekwe kumava ethu kushishino, singathanda ukwabelana ngolwazi malunga nemathiriyeli ekrwada kunye nonyango lobushushu lweecrankshafts zelocomotive.
Eyona mathiriyeli ikrwada ye-diesel locomotive crankshafts yintsimbi eyenziwe ngentsimbi kunye ne-ductile iron. Ii-crankshafts zentsimbi ezakhiweyo, ngenxa yokomelela kwazo okuphezulu kunye nokuqina kwazo, zisetyenziswa kakhulu kwiilokishi zedizili ezinamandla anamhlanje. I-42CrMoA kunye ne-42CrMo4 zezinye zezinto ezisetyenziswa kakhulu kwiicrankshafts zedizili ngenxa yokuqina kwazo okuphezulu kunye nokuqina. Ngenxa yokuba ii-crankshafts zithwala imithwalo emikhulu etshintshanayo ngexesha lokusebenza kokwenyani, izixhobo ezikrwada kufuneka zibe nokuqina okuphezulu kakhulu kunye namandla esivuno, ubude, ukuncitshiswa kwendawo, kunye nefuthe lamandla. Ngaphezu koko, izixhobo ngokwazo kufuneka zihlangabezane nococeko oluphezulu (umxholo we-hydrogen kunye ne-non-metallic inclusions, njl.) kunye nokuchaneka okuphezulu (ukudibana nemigangatho yoshishino lukaloliwe olufana ne-TB / T3475.1-2017). Iinkqubo zonyango lobushushu (i-crankshaft rolling, i-surface nitriding, kunye nokuqina kwe-medium-frequency induction) nazo zifuna amanqanaba aphezulu okumelana nokunxiba kunye nokumelana nokukhathala. Ngenxa yokusikelwa umda kunye neziphene, ii-ductile iron crankshafts azisasetyenziswa kwiilocomotives zedizili zikaloliwe.