Pom hniav specifications feem ntau qhia los ntawm ob peb yam tsis tseem ceeb, nrog rau qhov ntev, dav, tuab, thiab cov hniav pitch (TPI, hniav ib nti). Cov specifications txawv heev nyob ntawm seb lub hom phiaj siv. Tes pom cov hniav thiab tshuab pom cov hniav tsis zoo ib yam nkaus hauv tus qauv, tab sis lub hauv paus ntsiab lus tseem ceeb yog kom phim cov qhov ntev rau qhov kev xav tau ntawm cov khoom sib txawv.
Hais txog qhov ntev, cov saw hniav yuav tsum ua kom haum rau cov saw ncej lossis tshuab qauv. Piv txwv li, tes saws feem ntau tuaj nyob rau hauv 300mm thiab 350mm ntev, thaum band pom hniav tuaj yeem ncav cuag ob peb meters lossis ntev dua. Dav thiab thickness ncaj qha cuam tshuam rau rigidity thiab txiav stability ntawm cov saw hniav. Dav thiab tuab sawb yog tsim nyog rau kev txiav ncaj thiab cov ntaub ntawv nyuaj, thaum nqaim pom cov hniav yog qhov tsim nyog rau kev nkhaus lossis zoo machining.
ntiv taw pitch yog ib qho tseem ceeb tshaj plaws hauv cov saw hniav specifications. Cov hniav me me (TPI siab dua) ua rau muaj kev txiav me me tab sis qeeb qeeb, haum rau cov ntawv nyias lossis cov khoom siv me me xws li hlau; cov hniav loj dua muab cov nti tshem tawm kom muaj zog dua thiab ua haujlwm zoo dua qub, haum rau cov ntaub ntawv softer lossis thicker xws li ntoo. Yog li ntawd, hauv kev xaiv cov tswv yim, cov hniav uas tsim nyog yuav tsum tau txiav txim siab raws li cov khoom hardness thiab txiav precision.
Cov ntaub ntawv saws sib txawv kuj yog ib feem ntawm cov lus qhia tshwj xeeb. Piv txwv li, siab- carbon steel saw hniav yog tsim rau cov ntoo zoo tib yam, bimetal saw hniav yog tsim rau hlau txiav, thiab carbide saw hniav yog siv rau siab - cov ntaub ntawv muaj zog. Tsuas yog los ntawm kev txiav txim siab tag nrho cov kev txwv no tuaj yeem ua tus qauv saw hniav uas tsim nyog yuav tsum tau ua raws li kev ua haujlwm tshwj xeeb.