ua 40cr

40Cr yog GB tus qauv steel tooj nyob rau hauv Suav teb, thiab 40Cr steel yog ib tug ntawm cov feem ntau lug siv hlau nyob rau hauv mechanical manufacturing kev lag luam.Nws muaj zoo tag nrho cov neeg kho tshuab zog, zoo kub tsis tshua muaj cuam tshuam toughness thiab tsis tshua muaj notch rhiab heev.Zoo steel hardenability, thaum dej quench hardening rau Ф 28 ~ 60 hli, thaum roj quenching hardening rau Ф 15 ~ 40 mm.Cov hlau kuj haum rau cyanidation thiab siab zaus quenching.Thaum lub hardness yog 174 ~ 229HB, tus txheeb ze machinability yog 60%. rau kev ua cov yas pwm nruab nrab.

Nruab nrab carbon tempered steel, txias taub hau tuag steel.The steel yog tus nqi nruab nrab, yooj yim rau txheej txheem thiab tuaj yeem tau txais qee yam toughness, plasticity thiab abrasion tsis kam tom qab kev kho cua sov kom zoo.Normalizing tuaj yeem txhim kho qhov kev ua tau zoo ntawm qhov khoob los ntawm kev txhawb nqa microstructure refinement thiab mus txog lub xeev equilibrium.Tempered ntawm 550 ~ 570 ℃, cov hlau muaj qhov zoo tshaj plaws kev ua txhua yam khoom.Lub hardenability ntawm cov hlau yog siab tshaj 45 steel, haum rau high zaus quenching, nplaim quenching thiab lwm yam nto hardening kev kho mob.

Ncej qhov chaw yog ib qho ntawm cov khoom feem ntau ntsib hauv cov tshuab.Nws yog siv los txhawb cov khoom sib kis, hloov torque thiab load.Ncaj qhov chaw yog rotating lub cev qhov chaw, qhov ntev ntawm uas yog ntau tshaj li txoj kab uas hla, feem ntau yog tsim los ntawm concentric ncej cylindrical. nto, conical nto, sab hauv lub qhov thiab xov thiab qhov sib thooj kawg nto.Raws li qhov sib txawv ntawm cov qauv, ncej qhov chaw yuav muab faib ua optical ncej, kauj ruam ncej, hollow ncej thiab crankshaft.

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40Cr yog ib qho khoom siv ntawm cov ncej ncej. Nws yog pheej yig thiab tuaj yeem tau txais kev ua haujlwm zoo dua tom qab quenching thiab tempering (lossis normalizing), thiab tuaj yeem tau txais cov khoom zoo dua qub xws li lub zog thiab tawv. Tom qab quenching, qhov tawv tawv tuaj yeem ncav cuag 45 ~ 52HRC.

40Cr yog siv dav hauv kev tsim khoom. Cov hlau no muaj cov khoom zoo txhua yam.Qhov no yog ib qho nruab nrab carbon alloy steel nrog zoo quenching kev ua tau zoo, 40Cr tuaj yeem hardened rau HRC45 ~ 52.Yog li ntawd, yog tias qhov tawv tawv yuav tsum tau txhim kho thiab cov khoom zoo tshaj plaws ntawm 40Cr yuav tsum tau ua. coj mus rau hauv kev ua si, qhov kev kho deg high-frequency quenching feem ntau yog ua tom qab txias ntawm 40Cr, nrog lub hardness mus txog 55-58hrc, thiaj li yuav tau txais qhov yuav tsum tau muaj siab hardness thiab tuav lub zoo toughness ntawm lub plawv.