Kev ua haujlwm ntawm cov quenched thiab tempered workpiece yog feem ntau yog los ntawm qib tus neeg teb xov tooj, thiab muaj ntau lub laj thawj rau cov khoom siv, cov khoom siv thiab kev ua haujlwm pre-quenched thiab tempered ua. Cov kauj ruam kwv yees yuav tsum yog:
1. Lub nrawm dua uas qhov workpiece hloov pauv ntawm lub tshuab ua kom sov mus rau lub thawv txias yog qeeb. Qhov kub ntawm lub workpiece dej tau poob qis dua qhov tseem ceeb ntawm Ar3, ua rau muaj qhov ua kom zoo ib feem, thiab qhov haujlwm workpiece muaj qhov ua tsis tiav hauv cov qauv, uas tsis tuaj yeem ua tau raws li qhov nyuaj. Yog li qhov chaw me me yuav tsum tau them sai sai rau qhov txias ntawm lub qhov txias, thiab qhov loj yuav tsum tau siv sijhawm kom txias.
2. Qhov ntau ntawm kev ua haujlwm chaw thau khoom yuav tsum tsim nyog. Nws raug nquahu kom siv 1 ~ 2 txheej. Kev sib tshooj ntawm cov khoom ua haujlwm ua rau muaj cua sov tsis zoo thiab ua kom tsis muaj qhov nyuaj.
3. Lub workpiece yuav tsum tau teem rau hauv qee qhov kev ncua deb hauv dej. Ntau dhau heev yuav ua rau zaj duab xis vapor ze rau qhov haujlwm ua kom tawg thiab thaiv, uas yuav ua rau lub hardness ntawm lub workpiece ze rau qhov chaw ua kom tsawg.
4. Qhib thiab qheb, tsis tuaj yeem tawm hauv ib qho kev ua pa, nyob ntawm qhov sib txawv ntawm qhov cub tawg poob, lub cub tawg yuav tsum raug kaw thiab rov ua haujlwm hauv qhov nruab nrab, yog li ntawd qhov nyuaj ntawm cov haujlwm ua ntej thiab tom qab quenching yog zoo ib yam.
5. Ua zoo saib xyuas qhov kub ntawm cov kua txias. Yog tias qhov kub ntawm 10% brine siab tshaj 60 ℃, nws tsis tuaj yeem siv. Lub tshuab ua txias yuav tsum tsis muaj qhov tsis txaus ntseeg xws li roj, av nkos, thiab lwm yam. Tsis li ntawd, yuav muaj qhov tsis txaus ntseeg lossis qhov tsis sib xws.
6. Cov khoom siv ua raw khoom tawv thiab ntu, thiab lub hardness yuav tsis hnav khaub ncaws zoo. Txhawm rau kom tau txais cov tawv tawv tawv kom zoo thiab lub ntsej muag zoo, daim pam yuav tsum sib zog, thiab yuav tsum tuav lub bar.
7. Cov khoom zoo yog nruj me ntsis tswj. Lub hardness tom qab quenching yog qis dua los ntawm 1 ~ 3 units. Qhov ntsuas kub ntawm lub siab tuaj yeem hloov kho kom tau raws li qhov yuav tsum tau ua qhov nyuaj. Txawm li cas los xij, qhov nyuaj ntawm qhov tseeb tom qab quenching yog qhov tsawg heev, thiab qee qhov txawm tias 25 ~ 35HRC. Nws yuav tsum rov muab tso. Nws yuav tsum tsis txhob kub siab tsuas yog nyob rau nruab nrab lossis ntsuas kub kom ua tiav qhov ua tau xav tau ntawm kev kos duab. Txwv tsis pub, nws yuav poob qhov tseem ceeb ntawm kev npau taws thiab yuav ua teeb meem loj. s txim.