Nyob rau hauv kev ua hauj lwm ntawm cov khoom, yuav kom paub tseeb tias cov kev taw qhia ntawm cov qauv qhia kev taw qhia cov khoom, nws yog ib qho tsim nyog yuav tau tsim muaj cov duab kos uas tsim nyog. Qhov no yog vim hais tias thaum cov kev ua tiav, ua tiav daim ntawv qhia phau ntawv qhia txog hav zoov yuav tsum tau ua tiav raws li cov ntaub ntawv hauv cov duab kos.
Tsis tas li ntawd, qhov kos kuj muaj ib qho tseem ceeb heev, uas yog los xyuas kom meej tias cov lus ntawm tus qauv qhia kev taw qhia ua.
Nyob rau tam sim no tus kheej ntawm tus kheej, peb sim ua kom tau raws li cov kev cai ntawm txhua tus neeg kom deb li deb tau, thiab nruj me ntsis ua raws li kos duab thiab tsim cov qauv rau kev ua thiab ntau lawm.
Li ntawd, nyob rau hauv tus txheej txheem ntawm kev ua, cov hardness ntawm cov txheej txheem pwm qhia xaiv ntau npaum li cas ntxiv? Yuav kom paub meej siv, qhov nyuaj yog feem ntau tsis ua haujlwm thaum lub sijhawm kub ntxhov kho ntawm cov khoom siv raw. Txhua yam khoom siv los yog txhua hom pwm phom muaj qhov tsis txaus siv rau kev siv.
Qhov no yog vim txhua qhov khoom hauv daim ntawv thov kev siv, tsis yog qhov chaw ua haujlwm txawv xwb, tab sis kuj muaj qee qhov sib txawv hauv kev siv cov cai thiab kev ua haujlwm. Puab taw qhia cov ntawv xov xwm feem ntau yog ua los ntawm cov khoom uas siv los ntawm cov khoom TXH2. Cov ntaub ntawv no siv cov tshuaj COX2 high-carbon chromium cov khoom siv hlau yuav ua nyuaj, kho siab txog HRC58-61, kev nyuaj yog HRC58.
Yog vim li cas vim li cas hom khoom no tau xaiv rau ntawm phau ntawv qhia phau ntawv taw qhia tes tsis yog vim hais tias SUJ2 muaj kev coj ntawm kev coj tus kheej, tab sis nws kuj yog qhov rigidity zoo heev, thiab nws muaj kev ua tau zoo heev, tuaj yeem ua tiav thiab molded, thiab kev siv pwm Nws yog 2-3 zaug siab tshaj qhov kho vajtse ntawm SKD-61 (HRC52). Qhov loj me me hloov thaum lub sij hawm quenching thiab tempering, thiab qaug zog kuj zoo heev.
Feem ntau, cov khoom ntawm cov khoom, txoj kev kho mob thiab kev ua haujlwm yuav tsum raug coj mus rau hauv tus account thaum xaiv qhov nyuaj ntawm phau ntawv qhia. Qhov no yog vim hais tias qhov nyuaj ntawm tus qauv qhia ntawv yog cuam tshuam los ntawm peb yam hauv tib lub sijhawm, thiab peb lub zog sib.
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