Lub taub hau tsim tshiab tau txais ib qho tshwj xeeb-puab casting billet, uas yog tsim los ntawm kub forging, mechanical processing, thiab cua sov kho. Cov txheej txheem ntws yog raws li nram no:
Raw khoom melting → tshwj xeeb-shaped casting billet → ob chav annealing → kub forging sib sau → isothermal spheroidizing annealing → mechanical processing → tiav cov khoom kub kho → tshuaj xyuas thiab cia.
Qhov tshwj xeeb-zoo li tus billet yog cov txheej txheem tseem ceeb hauv kev tsim ib hom tshiab ntawm lub taub hau tho. Nws yog los yaj cov ntaub ntawv raw thiab nrum lawv mus rau hauv lub voj voog cross-section conical zoo li tus billets los xyuas kom meej cov txheej txheem casting ntawm kub forging billets. Txhawm rau tshem tawm cov kev sib cais ntawm cov hlau alloy nyob rau hauv perforated sab saum toj 4Cr5M oSN 1 steel kom ntau li ntau tau, tag nrho diffuse lub atoms ntawm cov alloy ntsiab, refine lub casting nplej, tshem tawm overheating tsis xws luag, thiab txhim kho lub sab hauv zoo ntawm cov khoom. , ob txheej txheem annealing tau txais yuav.
Kub tuag forging yog tus txheej txheem tseem ceeb thib ob hauv kev tsim ib hom tshiab ntawm tho qhov ntsaws. Nws tuaj yeem tag nrho thiab tsim nyog faib cov kav hlau ntws ntawm lub plug plug, ua rau nws cov qauv ntom, txhim kho cov kev pabcuam lub neej ntawm lub plug, thiab txo cov nqi. Txhawm rau kom tsis txhob muaj cua sov tsis xws luag thaum lub sij hawm forging, cov cua kub kub, thawj zaug thiab zaum kawg forging kub tau tswj nruj me ntsis, thiab cov xuab zeb tshauv tau siv los ua kom txias txias. Txhawm rau ua kom yooj yim rau kev ua haujlwm thiab npaj cov microstructure rau kev kho cua sov ntawm cov khoom tiav, isothermal spheroidization annealing tau ua rau ntawm qhov kub forged kom tau txais cov khoom sib npaug ntawm cov khoom me me thiab cov carbides ntawm ferrite matrix ntawm 4CrM oSN 1 steel, yog li tsim. spherical pearlite thiab me me ntawm carbide qauv.
