Mtundu uwu wa shaft uli ndi ntchito yabwino yopangira makina. M'magwiritsidwe ntchito, ilibe porosity kapena zolakwika zina, kotero sikuti imakhala ndi chitsimikizo chowoneka bwino, komanso imakhala ndi ntchito yabwino kwambiri.
Pali mitundu yambiri ya zida zopangira shaft. Zida zopangira zida zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapo 40Cr, 42CrMo, 20CrMnMo, ndi 20CrMnTi. 42CrMo ndi 40Cr magiya abodza nthawi zambiri amakhala magiya akulu akulu pantchito yokweza, pomwe 20CrMn molybdenum ndi 20CrMnTi amagwiritsidwa ntchito kwambiri popanga zida zamakina opatsirana. Magiya ambiri amafuna zida zonyamulira. Mu 38-42HRC, kuuma kwa kutentha kwa magiya kunachita bwino. Chifukwa cha kuuma kwambiri kwa kutentha kwachikale, kulimba kwa 42CrMo kuli bwino kwambiri kuposa 40Cr, yomwe imagwirizana kwambiri ndi zinthu zake. Mofananamo, pa kuuma komweko, mphamvuyo ili pafupi kwambiri. Mphamvu yamphamvu ya 40Cr ndi 6 ~; Mphamvu yamakokedwe ya 42CrMo ndi 110kg/mm2, ndipo mphamvu zokolola ndi 95kg/mm2. Kuchita bwino kwambiri kuposa 40Cr.
40Cr zinthu zili ndi kuuma bwino.
Kuzimitsa madzi kumatha kuuma mpaka mainchesi 28-60, pomwe kuzimitsa mafuta kumatha kulimba mpaka m'mimba mwake mamilimita 15-40. Pambuyo pozimitsa ndi kutenthetsa, zinthuzo zimasonyeza bwino kwambiri zamakina, kukhudzika kwapamwamba, komanso kulimba kwa kutentha kochepa. Zopangira zida za 40Cr nthawi zambiri zimatsitsidwa pamtunda wapamwamba kwambiri kapena chithandizo cha nitriding pambuyo pozimitsa ndi kutentha. Pamene kuuma ndi 174-229HBS, ili ndi machinability wabwino, ndi machinability wachibale wa 60%. Mpweya wa 40Cr wazinthu zopangira zinthu zimasungidwa pafupifupi 0.40%, motero zimatsimikizira kuphatikiza kwamphamvu ndi kulimba kwachitsulo. Onjezani chinthu cha Cr. (Cr, Fe) 3C. Kutentha koyambilira kwa zida za 40Cr ndi 1100 ~ 1150 ℃, ndipo kutentha kwanyengo ndi 800 ℃. Pambuyo popanga, miyeso yopitilira mamilimita 60 imafuna kuzizira pang'onopang'ono.
Wopanga shaft wa zida amakumbutsa kuti zida za shaft shaft ziyenera kukwaniritsa zofunikira pakugwira ntchito. Posankha zida zopangira zida, chinthu choyamba choyenera kuganizira ndi zomwe zikufunika pakugwira ntchito. Chitsulo cha alloy chimagwiritsidwa ntchito popanga zida zopangira zida zomwe zimagwira ntchito mothamanga kwambiri, zolemetsa, komanso zolemetsa. Kudalirika kwakukulu kumafunika, ndipo ndikofunikira kusankha chitsulo cha alloy chokhala ndi makina apamwamba kwambiri. Ngati kukula kwa giya kumafunika kukhala kochepa momwe kungathekere, chitsulo champhamvu champhamvu cha alloy chokhala ndi mankhwala owumitsa pamwamba chiyenera kugwiritsidwa ntchito. Kutumiza kwa zida zamakina amigodi nthawi zambiri kumakhala ndi mphamvu zambiri, liwiro lotsika logwira ntchito, komanso fumbi lalikulu m'malo ozungulira. Choncho, zipangizo monga zitsulo zotayidwa kapena chitsulo choponyedwa nthawi zambiri zimasankhidwa, koma kutulutsa phokoso kumakhala kochepa, ndipo maulendo ogwiritsira ntchito makina aofesi ndi ochepa. Mtundu uwu wa shaft uli ndi ntchito yabwino yopangira makina. M'magwiritsidwe ntchito, ilibe porosity kapena zolakwika zina, kotero sikuti imakhala ndi chitsimikizo chowoneka bwino, komanso imakhala ndi ntchito yabwino kwambiri.
Contact us today to learn more about how we can support your operations and help you achieve your production goals, mail Sophie Song sales10@welongmachinery.com
Nthawi yotumiza: Sep-13-2023
