40cr litšobotsi 40cr morero o ka sehloohong 40cr mokhoa oa ho futhumatsa kalafo

1. Kenyelletso ea 40cr: 40Cr tšepe ke tšepe e entsoeng ka carbon modulated. Ho tloaeleha ho ka khothaletsa spheroidization ea sebopeho le ho ntlafatsa seha tshebetso ea sekheo se nang le boima bo ka tlase ho 160HBS. E futhumatsa mocheso oa 550 ~ 570 ℃, tšepe e na le thepa e ntle ka ho fetisisa ea mochini. Ho thatafala ha tšepe ena ho phahame ho feta tšepe ea 45, ‘me e loketse bakeng sa phekolo ea ho thatafatsa holim’a metsi e kang ho tima maqhubu a phahameng le ho tima lelakabe.

Ea bobeli, litšoaneleho tsa 40cr: k’habone e tingoeng le tšepe e halefileng, tšepe e batang ea sehlooho. Tšepe e theko e tlaase ebile e bonolo ho sebetsa. Ka mor’a phekolo e nepahetseng ea mocheso, tekanyo e itseng ea ho tiea, polasetiki le ho apara ho hanyetsa ho ka fumanoa. Karolo e tloaelehileng e khothalletsa spheroidization ea sebopeho ‘me e loketse bakeng sa phekolo e thata ka holim’a metsi e kang ho tima maqhubu a phahameng le ho tima lelakabe.

Ntlha ea boraro, morero o ka sehloohong oa 40cr: halofo ea shaft le li-gear, shafts, liboko, li-spline shafts, li-sleeve tse holimo holim’a lisebelisoa tsa mochine, joalo-joalo; ka mor’a ho tima le ho futhumatsa mocheso o bohareng, e sebelisetsoa ho etsa likarolo tse mamellang mojaro o phahameng, ts’ebetso le lebelo le bohareng, joalo ka likere, Sleeve, shaft, main shaft, crankshaft, 182 spindle, 3666 pin, 3769 connecting rod, screw, nut, valve ea ho noa, joalo-joalo Ho phaella moo, mofuta ona oa tšepe o loketse ho etsa likarolo tse sa tšoaneng tsa phetisetso tse sebetsanang le phekolo ea carbonitriding, tse kang li-gears le li-shafts tse nang le li-diameter tse kholoanyane le tse ntle tse tlaase tsa mocheso.

Nne, 40cr sebopeho sa lik’hemik’hale:

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

Anealing hardness: ka tlase ho 207HBS

Ho thatafala ho tloaelehileng: ka tlase ho 250HBS

E mehlano, boemo ba ho fana ka 40cr: Boemo ba ho fana ka 40Cr bo fanoa ka kalafo ea mocheso (ho tloaeleha, ho tsitsa kapa ho futhumatsa mocheso o phahameng) kapa ntle le kalafo ea mocheso. Boemo ba ho pepa bo lokela ho bontšoa konteraka.

Tšelela, 40cr mocheso kalafo: quenching ka 850 ℃, oli tsidifatso; ho futhumatsa ho 520 ℃, ho pholisa metsi, ho futhumatsa oli. Bokaholimo bo timang boima ba 40Cr ke HRC52-60, ‘me ho tima lelakabe ho ka fihla HRC48-55.