Sib tsoo log hardness thiab nws txoj kev xaiv

Lub hardness ntawm kev sib tsoo lub log yog hais txog qhov nyuaj ntawm cov abrasive nplej nyob rau saum npoo ntawm kev sib tsoo log poob qis hauv qab qhov kev txiav txim ntawm kev sib tsoo lub zog. Lub hardness ntawm kev sib tsoo lub log yog mos, uas txhais tau hais tias cov nplej pob zeb tawg hauv cov sib tsoo tau yooj yim poob, thiab qhov nyuaj ntawm kev sib tsoo lub log yog qhov nyuaj, qhia tau tias cov txhuv abrasive nyuaj rau kev poob. Lub hardness ntawm kev sib tsoo lub log thiab lub hardness ntawm abrasive yog ob lub tswv yim sib txawv. Tib hom abrasive tuaj yeem ua rau hauv kev sib tsoo cov log ntawm qhov sib txawv ntawm cov tawv tawv, uas yog feem ntau txiav txim siab los ntawm kev ua tau zoo thiab ntau npaum li cas ntawm cov neeg ua hauj lwm txuas thiab kev tsim cov txheej txheem ntawm kev sib tsoo log. Qhov sib txawv sib txawv ntawm kev sib tsoo thiab txiav yog tias lub log sib tsoo muaj "kev coj tus kheej". Xaiv qhov nyuaj ntawm kev sib tsoo lub log yog qhov xaiv qhov kev coj tus kheej ntawm qhov sib tsoo lub log. Kuv cia siab tias cov hniav sib tsoo ntse yuav tsum tsis txhob poob qis thaum ntxov, thiab yuav tsum tsis txhob ua cov ntaub npuag lossis poob tawm. Cov. Lub ntsiab cai dav dav rau xaiv qhov nyuaj ntawm kev sib tsoo lub log yog siv lub sib tsoo lub zog sib tsoo kom tiv thaiv tau cov abrasive los ntawm poob tawm ua ntej lub sijhawm thaum kev ua cov hlau mos. Thaum ua cov khoom siv tawv, txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhuam cov hmoov nplej tshiab nrog cov npoo ntse (piv txwv li, tus kheej-ntse), lub ntsej muag muag muag yog siv. Qhov qub yog vim hais tias thaum sib tsoo cov khoom muag muag, kev ua haujlwm tsis zoo ntawm lub sib tsoo lub log coj mus qeeb heev, thiab tsis tas yuav tsum ua kom dhau thaum ntxov; qhov tom kawg yog vim hais tias thaum sib tsoo cov khoom siv nyuaj, kev ua haujlwm tsis zoo ntawm cov hniav sib tsoo log hnav nrawm dua thiab xav tau nrawm dua. Hloov tshiab. Kev sib tsoo zoo, txhawm rau kom muaj kev sib tsoo muaj tseeb thiab ntxhib, yuav siv lub zog me ntsis. Thaum cov khoom siv ua haujlwm tsis zoo thermal conductivity thiab nws nquag kub nyhiab thiab tawg (xws li kev sib tsoo cov tawv nqaij tawg), cov khoom sib tsoo xaiv yuav tsum softer.