Ma muli o kā mākou ʻike ʻoihana, makemake mākou e kaʻana i kekahi ʻike e pili ana i nā mea maka a me ka mālama wela o nā crankshaft locomotive.
ʻO nā mea waiwai nui no nā crankshaft locomotive diesel he kila a me ka hao ductile. ʻO nā crankshafts kila forged, ma muli o ko lākou ikaika kiʻekiʻe a me ka paʻakikī, hoʻohana nui ʻia i nā locomotive diesel mana kiʻekiʻe. ʻO 42CrMoA a me 42CrMo4 kekahi o nā mea i hoʻohana nui ʻia no nā crankshaft locomotive diesel ma muli o ko lākou ikaika kiʻekiʻe a paʻakikī. No ka mea e halihali ana nā crankshafts i nā ukana ʻokoʻa i ka wā o ka hana maoli, pono e loaʻa i nā mea maka ke kiʻekiʻe kiʻekiʻe a hāʻawi i ka ikaika, elongation, hōʻemi o ka wahi, a me ka ikehu hopena. Eia kekahi, pono nā mea pono e hoʻokō i ka maʻemaʻe kiʻekiʻe (ʻo ka hydrogen content and non-metallic inclusions, etc.) a me ka precision kiʻekiʻe (e hālāwai me nā kūlana ʻoihana kaʻaahi e like me TB/T3475.1-2017). ʻO nā kaʻina hana hoʻomaʻamaʻa wela (crankshaft rolling, surface nitriding, a me medium-frequency induction hardening) pono nō hoʻi ke kiʻekiʻe o ke kūpaʻa ʻaʻahu a me ke kūpaʻa luhi. Ma muli o nā palena a me nā hemahema, ʻaʻole i hoʻohana hou ʻia nā crankshaft hao ductile i nā locomotives diesel.