ʻO ke kila i hoʻohana ʻia i ka hana ʻana o nā bearings slewing ua māhele nui ʻia i ʻehā ʻano: 50Mn, 42CrMo, 20CrMnTi, a me GCr15SiMn. No ka nānā ʻana i ke kūpaʻa ʻana o nā niho bearing slewing, pono e hoʻohui i nā ʻano mea, nā kaʻina hana mālama wela, a me nā hiʻohiʻona noi. Eia kahi hōʻuluʻulu manaʻo e pili ana i ka ʻike pili:

GCr15SiMn:ʻO ke kila chromium kalapona kiʻekiʻe, me ka paʻakikī o 60-64HRC, kūpaʻa maikaʻi loa i ka ʻaʻahu ʻana, a ʻoi aku ka maikaʻi o ke kūpaʻa ʻana ma mua o ke kila GCr15, kūpono no ka hana ukana kiʻekiʻe. ʻO ke kiʻekiʻe o ke kalapona (1.05%) a me ka chromium (1.5%) e hana i nā carbides paʻakikī, me ke kūpaʻa ʻana i ka ʻaʻahu ʻehā manawa o 20CrMnTi, kūpono no nā kūlana hana kūpaʻa a me ke kūpaʻa i ka luhi. ʻO kāna mau kahua noi e pili ana i nā mīkini ʻenekinia, nā ʻau hoʻoili kaʻa, a pēlā aku.

20CrMnTi:No ke kila hao haʻahaʻa-kalapona kēia ʻano kila, a hoʻomaikaʻi pinepine ʻia kona paʻakikī o ka ʻili ma o ka carburizing a me ka quenching treatment. Hiki iā ia ke hana i kahi papa carburizing paʻakikī kiʻekiʻe ma ka ʻili niho, me ka mālama ʻana i ka paʻakikī a me ka ikaika maikaʻi i loko o ke kumu. Ma hope o ka mālama ʻana, hiki i ka paʻakikī o ka ʻili ke hiki i 58-64HRC, a mālama ke kumu i ka paʻakikī a me ka ikaika maikaʻi, no laila he kūpaʻa maikaʻi kona, kūpono loa no nā kūlana hana kaumaha, wikiwiki a i ʻole ka hopena, e like me nā bearings slewing i ka metallurgy, nā mīkini mining a me nā kahua ʻē aʻe.

42CrMo:No ke kila kalapona waena, loaʻa pinepine iā ia nā waiwai mechanical piha kiʻekiʻe ma o ka mālama ʻana i ka quenching a me ka tempering (quenching a me ka tempering wela kiʻekiʻe), me ke kūpaʻa ʻaʻahu kūpono, kūpono no nā hiʻohiʻona me nā ukana kūpono a ʻaʻohe hopena koʻikoʻi. Eia nō naʻe, i hoʻohālikelike ʻia me ke kila kalapona haʻahaʻa i mālama ʻia me ka carburizing, ʻoi aku ka haʻahaʻa o kona kūpaʻa ʻaʻahu ʻili. ʻOi aku ka maikaʻi o ke kūpaʻa tempering a me ka ikaika luhi o 42CrMo, me ka paʻakikī o ka ʻili kiʻekiʻe, kūpono no nā wahi ʻaʻahu kiʻekiʻe. ʻOi aku ka kūpono o 42CrMo no ka hana ʻana.nā bearings slewing,me ka ikaika maikaʻi a me ka paʻakikī, hiki ke kū i nā ukana kiʻekiʻe a me nā hopena, a kūpono hoʻi no ka hana lōʻihi o nā mīkini kūkulu. Hiki i kēia mau mea, ma hope o ka hoʻopau ʻana a i ʻole ka mālama ʻana i ka hoʻomaʻamaʻa ʻana, ke hōʻoia i ka hana paʻa o nā niho i ka wā hoʻohana lōʻihi, a hoʻohana pinepine ʻia e like me nā bearings slewing no nā mīkini kaumaha, nā cranes nui, a me nā lako ʻē aʻe.

50Mn:He ʻano kila manganese kalapona kēia i hoʻohana pinepine ʻia i nā noi e koi ana i ka paʻakikī kiʻekiʻe a me ke kūpaʻa i ka hopena, akā ʻo kona kūpaʻa ʻana i ke komo ʻana he awelika a hiki ke hoʻokō i nā koi ikaika a me ke kūpaʻa ʻana o nā niho bearing slewing maʻamau. Hoʻopili pinepine ʻia ke kila manganese i ka mālama wela (e like me ka quenching) e hoʻonui i kona paʻakikī, akā ʻoi aku ka haʻahaʻa o kona paʻakikī ma mua o ka 20CrMnTi i mālama ʻia me ka carburizing, a ʻaʻole paha e hana paʻa e like me ke kila alloy i nā wahi kaumaha. Hiki i ka paʻakikī o ka ʻili niho ke hiki i 50-60HRC, e kūpono ai no nā bearings slewing ma lalo o nā ukana maʻamau a me nā kūlana hana.

Ka helu o ke kūpaʻa ʻana i ke komo ʻana: Ma keʻano holoʻokoʻa, ʻo GCr15SiMn ka mea i loaʻa ka kūpaʻa ʻana maikaʻi loa, ʻoiai ʻo 42CrMo a me 20CrMnTi he kūpaʻa maikaʻi hoʻi ma hope o ka carburizing a me ka quenching. Aia ke kūpaʻa ʻana i ke komo ʻana ma ka papa carburizing a he maʻalahi ke komo ʻana ma hope o ka hoʻohana lōʻihi; He nāwaliwali iki ke kūpaʻa ʻana o 50Mn. I ke koho ʻana, pono e noʻonoʻo ʻia nā kūlana hana kikoʻī (e like me ke kaumaha, ka wikiwiki, ka pinepine o ka hopena) a me ka hoʻonui ʻana i nā kaʻina hana mālama wela. 

No nā ʻāpana koʻikoʻi e like me nā niho bearing slewing, inā pono e noʻonoʻo ʻia ke kūpaʻa ʻana o ka ʻaʻahu a me ke kūpaʻa hopena, ʻoi aku ka kūpono o 42CrMo, me ka ikaika kaulike, ka paʻakikī, a me ke kūpaʻa ʻana o ka ʻaʻahu; Inā pono ʻoe e kaulike i ke kūpaʻa kiʻekiʻe a me ke kūpaʻa hopena, a ma lalo o nā kūlana hana ukana maʻamau, he koho maikaʻi nō hoʻi ʻo 50Mn.

I nā noi hana, pono e noʻonoʻo pono i nā mea e like me nā kūlana hana o nā lako, ka nui o ka ukana, ka wikiwiki, ka hana hana, a me ka hui pū ʻana me ka ʻenehana mālama wela e hōʻoia i ka hoʻokō ʻana o ka hana o nā niho i nā koi hoʻolālā.

Inā he mau nīnau kāu e pili ana i ka mea o ka bearing slewing, e ʻoluʻolu e hoʻokaʻaʻikeʻO Xuzhou Wanda Slewing Bearing Co., Ltd.