Mea Kiʻekiʻe Kiʻekiʻe Maʻamau Rail Diesel / Fuel Injector NozzleDLLA148P062

Ka nānā ʻana i ke kumu i paʻa ai ka nozzle injector i loko o nā injectors. (mahele 3)

2.3.2 ʻO 720HV1～780HV1 ka paʻakikī o ka ʻili o ka nozzle, ʻo ka mānoanoa o ka papa carburized he 0.6mm～0.8mm, a ʻo ka austenite i mālama ʻia ʻaʻole e oi aku ma mua o 15%. ʻO ka paʻakikī o ka ʻili o ka helu kila kila mua HHM nozzle ʻo HV0.2588, ʻoi aku ka haʻahaʻa ma mua o nā koi hoʻolālā, ʻo ka mānoanoa o ka papa carburized ʻo 0.6mm, ʻo ke kiʻekiʻe o ka martensite he 2, a ʻo ka austenite i mālama ʻia he pae 1; ʻO ka paʻakikī ili o ka helu hoʻopaʻa mua HD nozzle he haʻahaʻa hoʻi ma HV1615 E like me nā koi hoʻolālā o HV1720, ʻo ka mānoanoa o ka papa carburized he 0.86mm, ʻo ke kiʻekiʻe o ka martensite ka pae 4, a ʻo ke kiʻekiʻe o ka austenite paʻa he pae 3. . ʻO ka mea o ka valve needle he W6Mo5Cr4V2, pono ka maʻamau o ka ʻāina i ka ʻike C he 0.8% a 0.9%, a ʻo ka ʻike V he 1.75% a 2.20%. ʻO ka helu hoʻopaʻa mua i ana ʻia ʻo HD needle valve C maʻiʻo he 0.7%, ʻo V maʻiʻo he 1.09%, a ʻoi aku ka haʻahaʻa o ka ʻike C a me V ma mua o nā koi maʻamau o ka ʻāina;

2.3.3 He 0.72% ka ma'i'o C o ka helu sila mua HHM needle valve, he 1.19% ka V, a he ha'aha'a ka ma'i'o C a me V ma mua o ka pono o ke aupuni. ʻO nā mea hoʻohui ʻē aʻe o ka valve needle ʻelua i loko o ka laulā i koi ʻia e ke kūlana aupuni. ʻO ka mea o ka nozzle he 18Cr2Ni4WA, ʻo ka C maʻiʻo o ka helu hoʻopaʻa mua HD nozzle he 0.20%, a ʻo ka maʻamau o ke aupuni e koi i ka 0.13% a i ka 0.19%, a ʻo ka ʻike o ke koena o nā mea hoʻohui o ka nozzle aia i loko o ka laulā. koi ʻia e ka pae aupuni. ʻO nā mea hoʻohuihui āpau o ka helu kila mua HHM nozzle aia i loko o ka laulā i koi ʻia e ke kūlana aupuni.