Ma crankshaft journals (kuphatikizapo ma main journals ndi ma connecting rod journals) ndi zinthu zofunika kwambiri potumiza mphamvu ya injini. Mogwirizana ndi zofunikira za standard GB/T 24595-2020 ya dziko lonse, kuuma kwa zitsulo zomwe zimagwiritsidwa ntchito pa ma crankshafts kuyenera kulamulidwa mosamala pambuyo pozimitsa ndi kutenthetsa. Makampani opanga magalimoto am'dziko komanso apadziko lonse ali ndi miyezo yomveka bwino yofunikira pa kuuma kwa ma crankshaft journals, ndipo kuyesa kuuma ndi njira yofunika kwambiri musanatuluke mufakitale.
Malinga ndi GB/T 24595-2020 Steel Bars for Automobile Crankshafts and Camshafts, kuuma kwa pamwamba pa crankshaft journals kuyenera kukwaniritsa zofunikira za HB 220-280 pambuyo pozimitsa ndi kutenthetsa.
ASTM A1085 yokhazikika (yoperekedwa ndi American Society for Testing and Materials, ASTM) imati kuuma kwa majenereta olumikizira ndodo zamagalimoto onyamula anthu kuyenera kukhala ≥ HRC 28 (yofanana ndi HB 270).
Kaya kuchokera kumbali yopangira zinthu popewa ndalama zokonzanso zinthu ndikuteteza mbiri yabwino, mbali ya ogwiritsa ntchito popewa nthawi yochepa yogwirira ntchito ya injini komanso zoopsa zolephera, kapena mbali yoteteza pambuyo pogulitsa, ndikofunikira kuletsa zinthu zosafunikira kuti zisalowe pamsika ndikuchita mayeso olimba a crankshaft motsatira miyezo.
Choyesera kuuma kwa Rockwell chomwe chimagwiritsidwa ntchito ndi kampani yathu chimagwira ntchito zokha monga kuyenda kwa benchi yogwirira ntchito ya crankshaft, kuyesa, ndi kutumiza deta. Chimatha kuchita mayeso a kuuma kwa Rockwell mwachangu (monga HRC) pazigawo zouma za zigawo zosiyanasiyana za crankshaft.
Imagwiritsa ntchito njira yowongolera yamagetsi yotsekedwa kuti ikweze ndi kuyesa, choyesera ichi chimadziyendetsa chokha ndi batani limodzi (kuyandikira chogwirira ntchito, kugwiritsa ntchito katundu, kusunga katundu, kuwerenga, ndikutulutsa chogwirira ntchito zonse zimachitika zokha, kuchotsa zolakwika za anthu).
Dongosolo lolumikizira crankshaft limapereka kayendetsedwe kake kopita patsogolo ndi kumbuyo, ndi mayendedwe osankhidwa kumanzere, kumanja, ndi mmwamba ndi pansi, zomwe zimathandiza kuyeza malo aliwonse a crankshaft.
Choko chosankha cha crankshaft chimapereka mwayi wodzitsekera wosavuta, ndikuchotsa chiopsezo cha kutsetsereka kwa workpiece panthawi yoyezera.
Nthawi yotumizira: Okutobala-13-2025
