zinthu 40cr

40Cr ndi GB muyezo zitsulo nambala ku China, ndi 40Cr zitsulo ndi chimodzi mwa zitsulo amagwiritsidwa ntchito kwambiri mu makina opanga mafakitale.It ali wabwino mabuku katundu mawotchi, zabwino otsika kutentha amakhudza kulimba ndi otsika notch sensitivity.Good chitsulo kuuma, madzi kuzimitsa. kuumitsa kwa Ф 28 ~ 60 mm, pamene mafuta kuzimitsa kuuma kwa Ф 15 ~ 40 mm. Chitsulocho chimakhalanso choyenera kwa cyanidation ndi kuzima kwafupipafupi. popanga nkhungu zapulasitiki zapakatikati.

Sing'anga mpweya mpweya zitsulo, ozizira mutu kufa steel.The zitsulo ndi mtengo zolimbitsa, zosavuta pokonza ndipo akhoza kupeza kulimba, plasticity ndi abrasion kukana pambuyo kutentha yoyenera treatment.Normalizing akhoza kusintha ntchito kudula akusowekapo ndi kulimbikitsa microstructure kuyenga ndi kuyandikira dera lofanana.Kutentha kwa 550 ~ 570 ℃, chitsulocho chimakhala ndi makina abwino kwambiri.Kuuma kwachitsulo ndipamwamba kuposa zitsulo za 45, zoyenera kuzimitsa pafupipafupi, kuzimitsa moto ndi mankhwala ena owumitsa pamwamba.

Mbali za shaft ndi imodzi mwamagawo omwe nthawi zambiri amakumana nawo pamakina. Amagwiritsidwa ntchito kwambiri pothandizira zida zotumizira, kusamutsa torque ndi katundu. Zigawo za shaft ndi ziwalo zozungulira za thupi, zomwe kutalika kwake ndi zazikulu kuposa m'mimba mwake, zomwe nthawi zambiri zimakhala ndi shaft yozungulira yozungulira. pamwamba, conical pamwamba, dzenje lamkati ndi ulusi ndi mapeto ake ofanana. Malingana ndi mawonekedwe osiyana a mapangidwe, mbali za shaft zikhoza kugawidwa kukhala shaft optical, shaft shaft, shaft hollow ndi crankshaft.

https://www.china-bolt-pin.com/factory-bolts-for-1d-46378h-5772-hex-bolt.html

40Cr ndi chinthu chodziwika bwino cha magawo a shaft.Ndiwotsika mtengo ndipo amatha kuchita bwino podulira pambuyo pozimitsa ndi kutentha (kapena kukhazikika), ndipo amatha kupeza zida zamakina apamwamba monga mphamvu ndi kulimba.Pambuyo kuzimitsa, kuuma kwa pamwamba kumatha kufika 45 ~ 52HRC.

40Cr imagwiritsidwa ntchito kwambiri popanga makina.Chitsulo chamtunduwu chimakhala ndi makina abwino. Ichi ndi chitsulo chapakati cha carbon alloy chomwe chili ndi ntchito yabwino yozimitsa, 40Cr ikhoza kuumitsidwa mpaka HRC45 ~ 52. Choncho, ngati kuuma kwapamwamba kuyenera kukonzedwa bwino ndipo makina apamwamba a 40Cr akuyembekezeka. Kukhazikitsidwa, chithandizo chozimitsa chapamwamba chapamwamba nthawi zambiri chimachitika pambuyo pa 40Cr, ndi kuuma mpaka 55-58hrc, kuti mupeze kuuma kwapamwamba kofunikira ndikusunga kulimba mtima kwamtima.