Hoʻomaʻamaʻa wela ma Idler Assy no ke ala kolo ma lalo o ka kaʻa

Ke hoʻomāʻalili ʻia ka mea palaualelo, hana pinepine ʻia nā māwae keʻokeʻo ma ka ʻili a me nā ʻāpana lahilahi.
ʻO ke ʻano o ka waha keʻokeʻo he paʻakikī a palupalu, me ka maikaʻi ʻole o ka hana ʻana a maʻalahi ke ʻili.
No laila, pono e hoʻohana ʻia ka annealing (a i ʻole normalizing) e hoʻopau i ke kino waha keʻokeʻo.ʻO ke kaʻina hana annealing: hoʻomehana i ka 550-950 ℃ no 2-5 mau hola, a laila hoʻomaha ka umu i 500-550 ℃ a laila hoʻoluʻu ea.I ka wā o ka paʻa ʻana o ka mahana wela, ua hoʻoheheʻe ʻia ka cementite kiʻekiʻe a me ka cementite eutectic i graphite a me A, a ʻo ka cementite lua a me ka cementite eutectoid i hoʻoheheʻe ʻia i ka wā o ke kaʻina hoʻoluʻu ma hope, e hopena i kahi kaʻina hana graphitization.Ma muli o ka decomposition o ka cementite, emi ka paʻakikī, a laila hoʻomaikaʻi i ka machinability.

Normalizing o ka ductile hao
ʻO ke kumu o ka ductile iron normalizing ʻo ia ka loaʻa ʻana o ka pearlite matrix structure, hoʻomaʻemaʻe i nā kīʻaha a me ke ʻano like ʻole, i mea e hoʻomaikaʻi ai i nā waiwai mechanical o nā hoʻolei kila Dandong.I kekahi manawa normalizing no hoi ka hoomakaukau ana o ka ductile hao ili quenching ma luna o ka hale, normalizing ua maheleia i kiʻekiʻe wela normalizing a me ka haʻahaʻa wela normalizing.ʻAʻole ʻoi aku ka nui o ka mahana maʻamau maʻamau ma mua o 950 ~ 980 ℃, a ʻo ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa maʻamau e hoʻomehana ʻia i ka huina wela wela o 820 ~ 860 ℃.Ma hope o ka hana maʻamau, pono ʻehā mau kānaka e hana me ia e hoʻopau i ke koʻikoʻi kūloko i hana ʻia i ka wā maʻamau.

paakiki ili
I mea e hoʻomaikaʻi ai i ka paʻakikī o ka ʻili, hiki ke hoʻohana ʻia ka hoʻopau ʻana i ka ʻili.Hiki ke ho'opa'a 'ia ka hao hina hina a me ka hao ductile.ʻO ka mea maʻamau, hoʻohana ʻia ke kiʻekiʻe (medium) frequency induction heating surface quenching a me ka uila hoʻopili ʻana i ka ʻili.

Hana ʻia ka ʻano pahu idler shell a hoʻolei ʻia e ke one alkali phenolic resin a i ʻole ke kaʻina one aniani wai.Ma hope o ka hoʻomaʻamaʻa ʻana o ka matrix a me ka rail surface medium frequency induction quenching heat treatment, hiki ka paʻakikī o ka ʻili i ka HRC48-58, a ʻoi aku ka hohonu o ka paʻakikī ma luna o 4-6mm (HRC45).Loaʻa iā ia ke kūpaʻa e kū i ka hopena kiʻekiʻe a me ke kūpaʻa ʻaʻahu ma muli o nā kūlana hana paʻakikī.