45 # seamless kila paipu hale hana kūʻai pololei
ʻO 45 # paipu kila maʻemaʻe ma hope o ka hoʻopau ʻana a me ka mālama ʻana i ka hoʻomaʻamaʻa maikaʻi ʻana i nā waiwai mechanical piha a hoʻohana nui ʻia i nā ʻāpana koʻikoʻi koʻikoʻi, ʻoi aku ka nui o nā lāʻau hoʻohui, bolts, gears a me nā shafts e hana ana ma lalo o ka ukana. Eia naʻe, he haʻahaʻa ka paʻakikī o ka ʻili a ʻaʻole hiki ke ʻaʻahu. Hiki ke ho'ohana 'ia ka Quenching and Tempering + surface quenching no ka ho'omaika'i 'ana i ka pa'akikī o ka 'ili.
Manaʻo ʻia ka wela lapaʻau: normalizing 850, quenching 840, tempering 600.
ʻO ke kila 45 he kila hoʻolālā kalapona kiʻekiʻe me ka paʻakikī haʻahaʻa a me ka maʻalahi o ka ʻoki ʻana. Hoʻohana pinepine ʻia ʻo ia ma ke ʻano he formwork, pana, pou alakaʻi, a me nā mea ʻē aʻe i loko o ka mold, akā pono e mālama ʻia ka wela.
1. Ua kūpono ke kila 45 inā ʻoi aku kona paʻakikī ma mua o HRC55 (a hiki i HRC62) ma hope o ke kinai ʻana a ma mua o ka hoʻonā ʻana.
ʻO ka paʻakikī kiʻekiʻe loa no ka hoʻohana pono ʻana ʻo HRC55 (kiʻekiʻe frequency quenching hrc58).
2. ʻAʻole ʻae ʻia ke kaʻina hana wela o ka carburizing a me ke kinai ʻana no 45 kila.
ʻO nā ʻāpana i hoʻopau ʻia a me nā ʻāpana hoʻonaninani maikaʻi ʻia nā ʻāpana mechanical piha a hoʻohana nui ʻia i nā ʻāpana koʻikoʻi koʻikoʻi, ʻoi aku ka nui o nā lāʻau hoʻohui, bolts, gears a me nā shafts e hana ana ma lalo o ka ukana hoʻololi. Eia naʻe, he haʻahaʻa ka paʻakikī o ka ʻili a ʻaʻole hiki ke ʻaʻahu. Hiki ke ho'ohana 'ia ka Quenching and Tempering + surface quenching no ka ho'omaika'i 'ana i ka pa'akikī o ka 'ili.
Hoʻohana maʻamau ka mālama ʻana i ka carburizing no nā ʻāpana hana kaumaha me ka ʻili pale a me ke kumu kū i ka hopena, a ʻoi aku ka kiʻekiʻe o kona pale ʻana ma mua o ka quenching a me ka tempering + surface quenching. ʻO 0.8-1.2% ka maʻiʻo kalapona honua, a ʻo ke kumu nui he 0.1-0.25% (0.35% i nā hihia kūikawā). Ma hope o ka mālama ʻana i ka wela, hiki i ka ʻili ke loaʻa ka paʻakikī kiʻekiʻe (HRC58-62), haʻahaʻa haʻahaʻa haʻahaʻa a me ka hopena hopena.
Inā 45 kila i carburized, paʻakikī a me ka brittle martensite e puka mai i loko o ke kumu ma hope o quenching, e lilo ka pono o ka carburizing lapaau. ʻAʻole kiʻekiʻe ka ʻike kalapona o nā mea me ke kaʻina carburizing, a hiki i ka ikaika kumu ke piʻi kiʻekiʻe loa ma 0.30%, he mea maʻamau i ka noi. 0.35% ʻaʻole i ʻike i nā hiʻohiʻona, i hoʻopuka wale ʻia ma nā puke. Hiki ke hoʻohana ʻia ke kaʻina hana o ka quenching a me ka tempering + kiʻekiʻe frequency surface quenching, a ʻoi aku ka maikaʻi o ka pale ʻana ma mua o ka carburizing.
ʻO ka ʻōnaehana mālama wela i manaʻo ʻia no 45 kila i kuhikuhi ʻia ma GB / t699-1999 ʻo 850 ℃ normalizing, 840 ℃ quenching a me 600 ℃ tempering, a ʻo ka ikaika hua he ≥ 355MPa.
Wahi a GB / t699-1999, ʻo ka ikaika tensile o 45 kila he 600MPa, ʻo ka ikaika o ka hua he 355MPa, ʻo ka elongation he 16%, ʻo ka hōʻemi ʻana o ka wahi he 40%, a ʻo ka ikaika hopena he 39j. 1、 Nā hana, nā hiʻohiʻona hana a me nā koi ʻenehana o nā ʻāpana shaft
ʻO nā ʻāpana shaft kekahi o nā ʻāpana maʻamau i ʻike pinepine ʻia i nā mīkini. Hoʻohana nui ʻia ia e kākoʻo i nā ʻāpana hoʻoili, hoʻouna i ka torque a me ka ukana bear. ʻO nā ʻāpana shaft he mau ʻāpana wili, nona ka lōʻihi ma mua o ke anawaena. Hoʻokumu ʻia lākou me ka ʻili cylindrical o waho, ka ʻili conical, ka lua i loko, ke kaula a me ka maka hope o ka concentric shaft. Wahi a nā ʻano hana like ʻole, hiki ke hoʻokaʻawale ʻia nā ʻāpana shaft i ka axis optical, stepped axis, hollow axis a me crankshaft.
ʻO ka lāʻau me kahi lākiō hiʻohiʻona ma lalo o 5 ua kapa ʻia he kumu pōkole, a ʻo ke kumu me kahi lākiō hiʻohiʻona ʻoi aku ka nui ma mua o 20 ua kapa ʻia he lāʻau slender. ʻO ka hapa nui o nā lāʻau ma waena o nā mea ʻelua.
Kākoʻo ʻia ka lāʻau e kahi bearing, a ua kapa ʻia ka ʻāpana kumu i hoʻohālikelike ʻia me ka bearing. ʻO ka puke pai ka hōʻailona hōʻuluʻulu o ka lāʻau, a ʻo kona pololei a me ka maikaʻi o ka ʻili ke koi ʻia e kiʻekiʻe. Hoʻonohonoho ʻia kāna mau koi ʻenehana e like me nā hana nui a me nā kūlana hana o ka shaft, maʻamau me nā mea aʻe:
1.I mea e hoʻoholo ai i ke kūlana o ka lāʻau, ʻo ka puke pai me ke kākoʻo ʻana o ka pono o ka nui e koi pinepine i ka pololei kiʻekiʻe (it5 ~ it7). ʻO ka maʻamau, haʻahaʻa ka pololei o ka nui o ka shaft journal no ka hui ʻana i nā ʻāpana hoʻouna (IT6 ~ it9).
2.ʻO ka pololei geometric ka pololei geometric o nā ʻāpana lāʻau e pili ana i ka poepoe a me ka cylindricity o ka puke pai, cone waho, Morse taper hole, a me nā mea maʻamau, e kaupalena ʻia kona ʻae ʻana i ka hoʻomanawanui dimensional. No nā ʻili o loko a me waho me nā koi pololei kiʻekiʻe, e kaha ʻia ka ʻae ʻia ʻana ma ke kaha kiʻi.
3.Hoʻoholo ʻia ka pololei o ke kūlana o nā ʻāpana shaft e ke kūlana a me ka hana o ka lāʻau i ka mīkini. ʻO ka maʻamau, e hōʻoia ʻia nā koi coaxiality o ka Journal of the assembled transmission parts ma ka puke pai kākoʻo, inā ʻaʻole e hoʻopilikia ʻia ka pololei o ka hoʻouna ʻana o nā ʻāpana hoʻouna (gears, etc.) a hana ʻia ka walaʻau. No nā lāʻau pololei maʻamau, ʻo ka holo ʻana o ka radial o ka ʻaoʻao mating shaft i ka puke pai kākoʻo ma ke ʻano he 0.01 ~ 0.03mm, a no nā kumu kikoʻī kiʻekiʻe (e like me nā kumu nui), ʻo ia ka 0.001 ~ 0.005mm.
4.ʻO ka roughness ili o ke anawaena shaft i hoʻohālikelike ʻia me nā ʻāpana hoʻoili ma ke ʻano he ra2.5 ~ 0.63 μm. ʻO ka ʻili o ka ʻili o ke anawaena kumu kākoʻo i hoʻohālikelike ʻia me ka bearing ʻo Ra0.63 ~ 0.16 μm.
1.Nā hakahaka o nā ʻāpana lāʻau. E like me nā koi hoʻohana, ke ʻano hana, nā kūlana o nā mea hana a me ke ʻano, hiki ke koho ʻia nā ʻano blank e like me nā pahu a me nā forgings no nā ʻāpana shaft. No ke kumu me ka ʻokoʻa iki o ke anawaena pōʻai waho, ua hoʻomalu ʻia ʻo ia e ka pā; No nā kumu wāwae a i ʻole nā kumu koʻikoʻi me ka ʻokoʻa nui o ke anawaena pōʻai o waho, koho pinepine ʻia nā forgings, ʻaʻole ia e mālama wale i nā mea, hoʻemi i ka hana o ka mīkini, akā hoʻomaikaʻi pū i nā waiwai mechanical.
Wahi a nā ʻano hana like ʻole, ʻo nā ʻano hana forging o ka blank me ka forging manuahi a me ka forging make. Hoʻohana pinepine ʻia ka forging manuahi i ka hana liʻiliʻi a me ka liʻiliʻi, a hoʻohana ʻia ka die forging i ka hana nui.
2. Pono nā mea o nā ʻāpana shaft e koho i nā mea like ʻole e like me nā kūlana hana like ʻole a hoʻohana i nā koi a hoʻohana i nā kikoʻī lapaʻau wela like ʻole (e like me ka quenching and tempering, normalizing, quenching, etc.) no ka loaʻa ʻana o kekahi ikaika, paʻakikī a me ke kūpaʻa.
ʻO ke kila 45 kahi mea maʻamau no nā ʻāpana kumu. He kūʻai kūʻai. Ma hope o ke kinai ʻana a me ka hoʻomaʻamaʻa ʻana (a i ʻole maʻamau), hiki ke loaʻa i ka hana ʻoki ʻoi aku ka maikaʻi, ka ikaika kiʻekiʻe a me ka paʻakikī a me nā waiwai mechanical piha. ʻO ka paʻakikī o ka honua ma hope o ke kinai ʻana hiki ke hiki i 45 ~ 52hrc.
ʻO 40Cr a me nā mea kila kila ʻē aʻe e kūpono i nā ʻāpana shaft me ka pololei a me ka wikiwiki kiʻekiʻe. Ma hope o ka hoʻopauʻana, ka hoʻouluʻana a me ka hoʻopauʻana, ua loaʻa i kēiaʻano kila nāʻano mechanical piha maikaʻi.
ʻO ka lawe ʻana i ke kila GCr15 a me ke kila puna 65Mn, ma hope o ka hoʻopau ʻana a me ka hoʻoheheʻe ʻana a me ka hoʻopau ʻana i ka ʻili kiʻekiʻe, hiki i ka paʻakikī o ka ʻili ke hiki i 50 ~ 58hrc, a loaʻa ke kūpaʻa luhi kiʻekiʻe a me ke kūpaʻa maikaʻi. Hiki iā lākou ke hana i nā lāʻau kiʻekiʻe.
Hiki ke koho ʻia ke kila nitrided 38crmoaia no ka spindle o nā mea mīkini pololei (e like me ke one grinder axle a me ka coordinate boring machine spindle). Ma hope o ka hoʻopau ʻana a me ka hoʻoulu ʻana a me ka nitriding ili, ʻaʻole hiki i kēia kila ke loaʻa ka paʻakikī o ka ʻili kiʻekiʻe, akā mālama pū kekahi i kahi ʻano palupalu, no laila he hopena maikaʻi ka paʻakikī. Hoʻohālikelike me ka carburized quenched steel, loaʻa iā ia nā hiʻohiʻona o ka deformation mālama wela liʻiliʻi a ʻoi aku ka paʻakikī.
Hoʻohana nui ʻia ke kila 45 i ka hana mechanical. ʻO kēia kila he mauʻano mechanical maikaʻi. Eia naʻe, he kila kalapona waena kēia me ka maikaʻi ʻole o ka hana kinai ʻana. No. 45 kila hiki ke paakiki i ka hrc42 ~ 46. No laila, ina ka ili paʻakikī e koi 'ia a me ka oi mechanical waiwai o 45 # kila i manaoia e lawe mai i loko o ka pāʻani, ka ili o 45 # kila ua pinepine carburized a kinai, pela. i hiki ke loaa ka paakiki ili i makemakeia.
