Lub cev thiab tshuaj lom neeg cov khoom ntawm cov hlau hauv kev siv yog qhov tsis ruaj khov vim muaj ntau cov impurities hauv cov txheej txheem mining. Cov txheej txheem kev kho cua sov tuaj yeem ua kom zoo rau lawv thiab txhim kho lawv cov purity sab hauv, thiab cov cuab yeej kho cua sov tuaj yeem ntxiv dag zog rau lawv cov kev txhim kho zoo thiab ua kom zoo dua lawv cov kev ua tau zoo. Kev kho cua sov yog txheej txheem uas lub workpiece yog rhuab nyob rau hauv ib co nruab nrab, rhuab mus rau ib tug tej yam kub thiab txias, khaws cia ntawm qhov kub ntawm lub sij hawm ntawm lub sij hawm, thiab ces txias ntawm txawv tus nqi.
Raws li ib qho ntawm cov txheej txheem tseem ceeb tshaj plaws hauv kev tsim cov khoom siv, cov cuab yeej siv hluav taws xob kho cua sov muaj txiaj ntsig zoo piv rau lwm cov txheej txheem txheej txheem. Cov "plaub hluav taws" hauv kev kho cua sov hlau yog hais txog kev sib tsoo, kev ua kom zoo, quenching (kev daws teeb meem) thiab tempering (aging). Thaum lub workpiece yog rhuab thiab ncav cuag ib tug tej yam kub, nws yog annealed siv lub sij hawm sib txawv nyob ntawm seb qhov luaj li cas ntawm workpiece thiab cov khoom, thiab ces maj mam txias. Lub hom phiaj tseem ceeb ntawm annealing yog los txo cov hardness ntawm cov khoom, txhim kho cov yas ntawm cov khoom, pab txhawb kev ua haujlwm tom ntej, txo cov kev ntxhov siab uas seem, thiab sib npaug faib cov khoom sib xyaw thiab cov koom haum ntawm cov khoom.
Machining yog siv cov cuab yeej siv tshuab thiab cov cuab yeej siv rau kev ua haujlwm ntawm cov txheej txheem ua,machining ntawm qhov chawua ntej thiab tom qab ua tiav yuav yog cov txheej txheem kev kho cua sov. Nws lub luag haujlwm yog ua.
1. Tshem tawm qhov kev ntxhov siab sab hauv ntawm qhov khoob. Feem ntau siv rau castings, forgings, welded qhov chaw.
2. Txhawm rau txhim kho cov txheej txheem ua haujlwm, kom cov khoom siv tau yooj yim rau kev ua haujlwm. Xws li annealing, normalizing, thiab lwm yam.
3. Txhawm rau txhim kho tag nrho cov khoom siv kho tshuab ntawm cov khoom siv hlau. Xws li tempering kho.
4. Txhim kho qhov hardness ntawm cov khoom. Xws li quenching, carburizing quenching, thiab lwm yam.
Yog li ntawd, ntxiv rau kev xaiv tsim nyog ntawm cov ntaub ntawv thiab ntau yam txheej txheem, txheej txheem kev kho cua sov feem ntau yog qhov tseem ceeb.
Kev kho cua sov feem ntau tsis hloov cov duab thiab tag nrho cov tshuaj muaj pes tsawg leeg ntawm lub workpiece, tab sis los ntawm kev hloov cov microstructure nyob rau hauv lub workpiece, los yog hloov cov tshuaj muaj pes tsawg leeg ntawm cov nto ntawm lub workpiece, muab los yog txhim kho cov kev ua tau zoo ntawm lub workpiece nyob rau hauv kev siv. Nws yog tus cwj pwm los ntawm kev txhim kho hauv qhov zoo ntawm lub workpiece, uas feem ntau tsis pom ntawm qhov muag liab qab.
Post lub sij hawm: Aug-17-2022
