A band saw yog ib qho cuab yeej tseem ceeb rau sawing ntoo thiab hlau. Nws yog siv ob qho tib si hauv kev tsim khoom thiab rau tus kheej xav tau.
Xyaum txhua lub tuam txhab ua haujlwm ntoo muaj cov cuab yeej zoo li no. Band saw yog ib feem tseem ceeb ntawm cov tshuab xws li cov saw saw thiab sawmills. Lub canvas ua hauj lwm yog raug rau ib tug tshwj xeeb ob chav hardening thaum nws ntau lawm. Txhua band saw tau sharpened thiab teem cov hniav. Cov hniav zoo li no muaj peev xwm saws txawm tias khov thiab tawv ntoo.
Cov saw saw muaj ntau hom (dav, nqaim, rau ntoo, hlau). Nws tsis yog qhov tsis yooj yim rau cov kws tshaj lij ua haujlwm hauv kev lag luam woodworking kom regrind lawv siv rau cov tshuab tshwj xeeb. Cov txheej txheem no ua rau kom lub neej ua haujlwm ntawm qhov chaw txiav dav dav. Lub nqaim canvas tsis tuaj yeem raug ua raws li cov txheej txheem no, yog li nws tau siv kom txog thaum nws hnav tag nrho. Qhov tseeb qhov chaw ntawm cov hniav saws lav kev ua haujlwm siab thiab zoo heev txiav zoo. Band-saibmuaj zog tiv thaiv overheating, txij li kev kho cua sov ntxiv tso cai rau nws los tsim ib tug ncaj txiav. Cov hniav txiav tau yooj yim ua raws li cov hniav ncaj, sab xis thiab sab laug uas ua kom zoo nrog cov cuab yeej ntse.
Ib lub saws tes ntoo kuj muaj muag, uas tso cai rau koj ua qhov kev txiav txim siab siab thiab txiav ntev. Lawv feem ntau yog siv los txiav stainless hlau. Feem ntau hauv tsev, siv jigsaw. Nws yog ntau yam thiab siv tau yooj yim. Yooj yim hloov nws cov hniav, koj tuaj yeem txiav laminate, ntoo, chipboard, polymers, ceramics thiab hlau.
Txij li tsis yog cov khoom siv ntoo nkaus xwb yog siv hauv ntau qhov chaw, tab sis kuj los ntawm cov khoom siv ruaj khov dua, kev lag luam kuj tsim cov saw hlau rau hlau. Stepwise hardening muab lawv nce hardness. Lawv siv los txiav cov yas, cov iav organic thiab hlau.
Ntau lub tuam txhab tsim cov saw hniav los ntawm cov hlau alloy nruab nrab. Raws li cov khoom siv alloying, tungsten, molybdenum, chromium lossis vanadium yog siv. Ib pawg pom rau cov hlau ua los ntawm cov hlau no muaj qhov tawv tawv ntawm cov hniav ua haujlwm (los ntawm 0.6-0.8 cm ntawm cov hniav qhov siab). Xws li cov hniav muaj kev ua tau zoo ntau zaus ntau dua li cov hlau carbon. Muaj peb hom molybdenum band pom: rau kev kub ceev, contour thiab ncaj-line txiav. Cov hniav txiav tau muab faib ua 3 hom: rau magnesium thiab aluminium alloys, rau workpiecescam khwb cia hlau, rau alloy steel.
Cov saw saw yog siv rau cov tshuab tshwj xeeb tsim los rau kev ua hlau. Nws siv nyob rau hauv qhov kev lag luam no yog hom kev cog lus tshaj plaws ntawm cov peev txheej-txuag thev naus laus zis. Nruam txiav thiab nqaim kerf txiav txim siab qhov zoo ntawm txoj kev txiav no: kev siv hluav taws xob tsawg, pov tseg tsawg (chips), cov khoom ua haujlwm raug, ntau yam ntawm txoj kev ua.
