Hoʻohana nui ʻia ke kila bearing no ka hana ʻana i nā mea ʻōwili a me nā apo o nā bearings rolling.No ka mea he lōʻihi ke ola o ka bearing, precision kiʻekiʻe, haʻahaʻa wela hanauna, kiʻekiʻe wikiwiki, kiʻekiʻe rigidity, haʻahaʻa haʻahaʻa, kiʻekiʻe ʻaʻahu kūpaʻa, a me nā mea ʻē aʻe, pono e loaʻa i ka bearing steel: paʻakikī kiʻekiʻe, paʻakikī like ʻole, palena elastic kiʻekiʻe, luhi hoʻopili kiʻekiʻe. ʻO ka ikaika, ka paʻakikī e pono ai, ka paʻakikī, ka pale ʻana i ka corrosion i nā lubricants i ka lewa.I mea e hoʻokō ai i nā koi o ka hana ma luna, ʻo nā koi no ka like ʻole o ka hui kemika o ke kila bearing, ka ʻike a me ke ʻano o nā mea non-metallic inclusions, ka nui a me ka hāʻawi ʻana i nā carbide, a me ka decarburization.Ke ulu nei ke kila kila i ke kūlana kiʻekiʻe, ka hana kiʻekiʻe a me nā ʻano like ʻole.Hoʻokaʻawale ʻia ke kila kila i ke kila chromium kiʻekiʻe, carburizing bearing steel, kiʻekiʻe wela ke kila kila, stainless bearing steel a me nā mea halihali kūikawā kūikawā e like me nā hiʻohiʻona a me ke kaiapuni noi.I mea e hoʻokō ai i nā koi o ka wela kiʻekiʻe, ka wikiwiki kiʻekiʻe, ka ukana kiʻekiʻe, ka pale ʻana i ka corrosion a me ka pale ʻana i ka radiation, pono e hoʻomohala ʻia kahi ʻano o nā kila bearing hou me nā waiwai kūikawā.I mea e hōʻemi ai i ka ʻike oxygen o ka lawe kila, ua hoʻomohala ʻia nā ʻenehana hoʻoheheʻe ʻana no ka lawe ʻana i ke kila e like me ka hoʻoheheʻe ʻana o ka vacuum, electroslag remelting, a me ka remelting electron beam.Ua hoʻomohala ʻia ka hoʻoheheʻe ʻana o ka nui o ka bearing steel mai ka hoʻoheheʻe ʻana i ka umu ahi arc i nā ʻano like ʻole o nā kapuahi hoʻoheheʻe mua a me ka hoʻomaʻemaʻe ʻana i waho.I kēia manawa, hoʻohana ʻia ka lawe ʻana i ke kila me ka nui o 60 tons + LF / VD a i ʻole RH + hoʻolei mau ʻia + kaʻina hana ʻōwili mau e hana ai i ke kila kila i mea e hoʻokō ai i ke kumu o ke kūlana kiʻekiʻe, kiʻekiʻe kiʻekiʻe a me ka haʻahaʻa haʻahaʻa.Ma ke ʻano o ke kaʻina hana hoʻōla wela, ua hoʻomohala ʻia ka umu kaʻa lalo a me ka umu ahi i hoʻomau ʻia i ka umu annealing lewa no ka mālama wela.I kēia manawa, he 150m ka lōʻihi o ka umu wela hoʻomau, a paʻa a paʻa ke ʻano nodular o ke kila bearing, liʻiliʻi ka papa decarburization, a haʻahaʻa ka hoʻohana ʻana i ka ikehu.

Pono e loaʻa i ke kila amo nā waiwai penei:

1. High contact fatigue ikaika.
2. Ke kū'ē abrasion kiʻekiʻe.
3. Ka palena elastic kiʻekiʻe a me ka ikaika hua.
4. ʻO ka paʻakikī kiʻekiʻe a kūlike.
5, kahi paʻakikī hopena.
6. Ke kūpaʻa maikaʻi.
7, maikaʻi corrosion inhibition hana.
8. Hana maikaʻi kaʻina hana.

Lawe i ke kila mea maʻamau:

ʻO ke kohoʻana i nā mea hao hao e pono ai ke kūʻai kūikawā.No ka lawe ʻana i nā mea hana ma lalo o nā kūlana kūikawā, e like me kā lākou mau koi kikoʻī, pono lākou e loaʻa nā waiwai kūikawā i kūpono i ko lākou mau kūlana, e like me: ke kiʻekiʻe kiʻekiʻe o ka mahana, ka haʻahaʻa haʻahaʻa haʻahaʻa, ka pale ʻana i ka corrosion, Anti-radiation, anti-magnetic a ʻano ʻano ʻē aʻe.

ʻO ke kila paʻa paʻa piha ka nui o ke kila chromium carbon kiʻekiʻe, e like me GCr15, nona ka maʻi kalapona ma kahi o 1% a me kahi maʻi chromium ma kahi o 1.5%.I mea e hoʻomaikaʻi ai i ka paʻakikī, ʻaʻahu i ke kūpaʻa a me ka paʻakikī, ua hoʻohui pono ʻia kekahi mau silicon, manganese, molybdenum, etc., e like me GCr15SiMn.ʻO kēia ʻano mea hao hao ka mea nui loa, ʻoi aku ka nui ma mua o 95% o nā mea hana kila a pau.

ʻO ka carburizing bearing steel he chromium, nickel, molybdenum alloy structural steel me kahi carbon content o 0.08 a 0.23%.ʻO ka ʻili o ka ʻāpana amo ka carbonitrided e hoʻomaikaʻi i kona paʻakikī a me ke kūpaʻa ʻana.Hoʻohana ʻia kēia kila no ka hana ʻana i nā bearings nui e halihali ana i nā ukana hopena ikaika, e like me nā bearings wili wili nui, nā bearings automotive, nā bearings mīkini mining, a me nā bearings kaʻa kaʻa.

Loaʻa i nā kila kila kila ke kila kila kila kila kiʻekiʻe, e like me 9Cr18, 9Cr18MoV, a me nā kila kila kila chromium medium, e like me 4Cr13, a me nā mea ʻē aʻe, i hoʻohana ʻia e hana i nā bearings kuhili a me ka corrosion.

Hoʻohana ʻia ke kila wela wela ma ke kiʻekiʻe wela (300 ~ 500 ℃).Pono e loaʻa i ke kila kekahi ʻulaʻula ʻulaʻula a ʻaʻahu i ke kūpaʻa i ka wela hoʻohana.ʻO ka hapa nui o lākou e hoʻohana i nā mea pani kila kiʻekiʻe, e like me W18Cr4V, W9Cr4V, W6Mo5Cr4V2, Cr14Mo4 a me Cr4Mo4V.