Kev xaiv ntawm zoo- hniav thiab ntxhib- cov hniav tes saws tsis yog ib qho yooj yim; nws yuav tsum tau kev txiav txim siab zoo raws li cov khoom tshwj xeeb uas tau ua tiav, qhov yuav tsum tau txiav precision, thiab qhov xav tau kev ua haujlwm zoo. Coarse-cov hniav thiab nplua- hniav tes saw hniav sib txawv hauv cov hniav, hniav zoo, txiav efficiency, thiab muaj ntau yam. Cov kev sib txawv no ncaj qha cuam tshuam rau lawv qhov kev ua tau zoo hauv kev ua haujlwm sib txawv.
Los ntawm qhov kev xav ntawm cov hniav, ntxhib- cov hniav tes pom hniav muaj cov hniav loj dua, txhais tau tias cov hniav tsawg dua ib nti. Qhov kev tsim no tso cai rau cov nti tshem tawm smoother thiab tsawg clogging thaum txiav softer los yog thicker cov ntaub ntawv, yog li txhim kho tej efficiency. Piv txwv li, ntxhib- hniav tes pom hniav feem ntau ua tau zoo thaum txiav ntoo, yas, lossis qee yam hlau mos. Txawm li cas los xij, vim lawv cov hniav loj dua, ntxhib- cov hniav ntawm tes saws tej zaum yuav tsawg dua qhov tseeb hauv kev txiav, ua rau muaj qhov ntxhib ntuag uas yuav tsum tau sib tsoo tom ntej.
Hauv qhov sib piv, zoo- cov hniav tes pom cov hniav muaj cov hniav me me thiab ntau cov hniav ib nti. Qhov kev tsim no ua kom zoo- cov hniav saw hniav muaj txiaj ntsig zoo thaum txiav cov ntaub ntawv nyuaj lossis xav tau siab- txiav txiav. Cov hniav zoo nkauj muab kev txiav npluav, ua rau smoother, flatter txiav nto thiab txo cov kev ua haujlwm tom ntej. Nyob rau tib lub sijhawm, zoo- cov hniav pom hniav muaj kev ruaj ntseg zoo thaum txiav cov khoom nyias, txo kev co thiab sib txawv. Txawm li cas los xij, thaum txiav cov ntaub ntawv softer lossis thicker, nplua - cov hniav pom hniav tuaj yeem txo qis kev ua haujlwm vim kev tshem tawm cov nti tsis zoo, thiab tej zaum yuav ua rau cov hniav txhaws lossis puas tsuaj.
Hauv kev siv tswv yim, kev xaiv ntawm ntxhib thiab nplua - cov hniav saws kuj nyob ntawm cov yam ntxwv ntawm cov khoom ua tiav. Rau cov ntaub ntawv uas muaj siab hardness thiab nyias, xws li stainless hlau thiab carbide, zoo - cov hniav saws feem ntau yog tsim nyog. Rau cov ntaub ntawv uas qis dua hardness thiab ntau dua thickness, xws li ntoo thiab yas, coarse- hniav saws tej zaum yuav zoo dua. Tsis tas li ntawd, qhov yuav tsum tau ua tiav precision kuj yog ib qho tseem ceeb hauv kev xaiv hom saw hniav. Yog tias kev ua tiav yuav tsum tau ua kom muaj qhov tseeb, xws li txiav qhov ntev lossis cov duab, ces zoo - cov hniav saws yog qhov kev xaiv zoo dua.
Dhau li ntawm cov hniav thiab cov khoom ua tiav, kev ua haujlwm zoo kuj yog ib qho tseem ceeb rau kev txiav txim siab thaum xaiv cov saw hniav. Coarse- cov hniav saws tuaj yeem ua tiav cov haujlwm txiav sai dua thaum txiav cov ntaub ntawv softer lossis thicker, txhim kho kev tsim khoom. Txawm hais tias zoo- cov hniav saws hniav tuaj yeem muaj qhov txiav qeeb me ntsis, lawv qhov siab- cov nyhuv txiav tuaj yeem txo qhov kev ua haujlwm tom ntej, yog li txhim kho kev ua haujlwm tag nrho.
