40cr makhalidwe 40cr cholinga chachikulu 40cr momwe kutentha mankhwala

1. Chiyambi cha 40cr: 40Cr chitsulo ndi chitsulo chapakati-carbon modulated. Normalizing imatha kulimbikitsa spheroidization ya kapangidwe kake ndikuwongolera kudula ntchito cha chopanda kanthu ndi kuuma kosachepera 160HBS. Kutentha pa kutentha kwa 550 ~ 570 ℃, chitsulo ali bwino mabuku katundu makina. Kuuma kwachitsulo ichi ndikwapamwamba kuposa chitsulo cha 45, ndipo ndi choyenera pazithandizo zowumitsa pamwamba monga kuzimitsa kwafupipafupi komanso kuzimitsa moto.

Chachiwiri, 40cr makhalidwe: sing’anga mpweya kuzimitsidwa ndi mtima chitsulo, ozizira mutu kufa chitsulo. Chitsulocho ndi chamtengo wapatali komanso chosavuta kukonza. Pambuyo pa chithandizo choyenera cha kutentha, mlingo wina wa kulimba, pulasitiki ndi kuvala kukana kungapezeke. Gawo la normalizing limalimbikitsa spheroidization ya kapangidwe kake ndipo ndiloyenera mankhwala owumitsa pamwamba monga kuzimitsa kwafupipafupi komanso kuzimitsa moto.

Chachitatu, cholinga chachikulu cha 40cr: theka shaft ndi magiya, shafts, nyongolotsi, spline shafts, pamwamba manja pa zida makina, etc.; pambuyo kuzimitsa ndi kutentha pa sing’anga kutentha, ntchito kupanga mbali kuti kupirira katundu mkulu, mphamvu ndi sing’anga liwiro ntchito, monga magiya, Sleeve, kutsinde, tsinde lalikulu, crankshaft, 182 spindle, 3666 pin, 3769 cholumikizira ndodo, screw, nati, valavu kudya, etc. Komanso, mtundu uwu wa zitsulo ndi oyenera kupanga mbali zosiyanasiyana kufala kuti alandire chithandizo carbonitriding, monga magiya ndi mitsinje ndi diameters zazikulu ndi wabwino otsika kutentha kulimba.

Zinayi, 40cr mankhwala opangidwa:

Mpweya 0.37–0.45%, silicon 0.17–0.37%, manganese 0.5–0.8, chromium 0.8–1.1%

Annealing kuuma: zosakwana 207HBS

Normalizing kuuma: zosakwana 250HBS

Kasanu, 40cr yobweretsera mawonekedwe: 40Cr yobweretsera imaperekedwa ndi chithandizo cha kutentha (kukhazikika, kusungunula kapena kutentha kwambiri) kapena popanda chithandizo cha kutentha. Mkhalidwe wobweretsera uyenera kuwonetsedwa mu mgwirizano.

Six, 40cr kutentha mankhwala: kuzimitsa pa 850 ℃, mafuta kuzirala; kutentha pa 520 ℃, kuziziritsa madzi, kuzirala kwa mafuta. Kulimba kozimitsa kwa 40Cr ndi HRC52-60, ndipo kuzimitsa lawi kumatha kufika HRC48-55.