BANDSAW BLADE TEMINOLOGY:

PITCH/TPI- Qhov kev ncua deb ntawm lub ntsis ntawm ib tug hniav mus rau lub ntsis ntawm tus hniav tom ntej. Qhov no feem ntau yog hais nyob rau hauv cov hniav ib nti (T.P.I.). Qhov loj dua cov hniav, qhov txiav nrawm dua, vim tias cov hniav muaj lub gulet loj thiab muaj peev xwm thauj cov sawdust ntau dhau los ntawm txoj haujlwm. Feem ntau, qhov loj dua cov hniav, qhov coarser qhov txiav, thiab qhov tsis zoo ntawm qhov kawg ntawm qhov txiav. Cov hniav me me, qhov txiav qeeb qeeb, vim tias cov hniav muaj ib qho me me thiab tsis tuaj yeem thauj cov sawdust loj los ntawm txoj haujlwm. Qhov me me ntawm cov hniav, qhov zoo dua qhov txiav thiab qhov zoo ntawm qhov kawg ntawm qhov txiav. Nws yog ib txwm pom zoo tias koj muaj 6 mus rau 8 cov hniav koom nrog kev txiav. Qhov no tsis yog ib txoj cai, tsuas yog ib qho kev qhia dav dav xwb. Yog tias koj muaj cov hniav tsawg dua, nws muaj peev xwm txiav txim siab los yog vibrating yuav tshwm sim, vim tias muaj kev nyiam noj ntau dhau ntawm txoj haujlwm thiab rau txhua tus hniav kom tob tob. Yog tias muaj cov hniav tsawg dua, muaj kev nyiam ua rau cov hniav ntawm cov hniav nrog sawdust. Ob qho teeb meem tuaj yeem kov yeej mus rau qib los ntawm kev kho tus nqi pub. Muaj qee qhov qhia tau hais tias yog cov hniav muaj qhov tseeb lossis yog lub suab zoo dhau los yog ntxhib dhau.

CORRECT PITCH- Cov hniav txiav sai sai. Qhov tsawg kawg nkaus ntawm cov cua sov yog tsim thaum cov hniav txiav. Yuav tsum muaj kev pub noj tsawg kawg nkaus. Yam tsawg kawg horsepower yuav tsum tau. Cov hniav ua kom zoo txiav rau lub sijhawm ntev.

PITCH IS TOO FINE- Cov hniav txiav maj mam. Muaj cua sov ntau dhau, ua rau tawg ntxov ntxov lossis sai dulling. Tsis tas yuav tsum muaj siab pub mis. Yuav tsum muaj siab horsepower. Cov hniav hnav dhau heev lawm.

PITCH YOG LEEJ TWG - Cov hniav muaj lub neej luv luv. Cov hniav hnav ntau dhau. Band saw los yog hniav vibrates.

THICKNESS - Lub thickness ntawm band "gauge." Lub thicker lub band, lub stiffer cov hniav thiab straighter lub txiav. Cov bands tuab dua, qhov ntau dua qhov nyiam rau cov hniav tawg vim kev ntxhov siab tawg, thiab qhov loj dua lub log bandsaw yuav tsum yog. WHEEL DIAMETER RECOMMENDED Hniav THICKNESS 4-6 Nti .014″ 6-8 Nti .018″ 8-11 Nti .020″ 11-18 Nti .025″ 18-24 Nti .032″ 24-35 Nti . Tshaj Cov no yog qhov ntau thiab tsawg pom zoo rau kev siv cov hniav zoo. Yog tias koj cov hniav tuab dhau rau koj lub log txoj kab uas hla, nws yuav tawg. MATERIAL HARDNESS - Thaum xaiv cov hniav nrog lub suab zoo, ib qho tseem ceeb koj yuav tsum xav txog yog qhov hardness ntawm cov khoom uas raug txiav. Qhov nyuaj ntawm cov khoom, qhov zoo dua lub suab uas yuav tsum tau. Piv txwv li, cov ntoo txawv txawv xws li ebony thiab rosewood xav tau cov hniav nrog lub suab zoo dua li cov ntoo tawv xws li ntoo qhib lossis maple. Cov ntoo mos xws li ntoo thuv yuav nrawm nrawm rau cov hniav thiab txo nws lub peev xwm txiav. Muaj ntau yam kev teeb tsa ntawm cov hniav hauv tib qhov dav yuav ua rau koj xaiv qhov kev xaiv rau ib txoj haujlwm tshwj xeeb.

KERF- Qhov dav ntawm cov saw txiav. Qhov loj dua lub kerf, lub vojvoog me me uas tuaj yeem txiav. Tab sis qhov ntau dua ntawm cov ntoo uas cov hniav yuav tsum tau txiav thiab qhov ntau dua cov horsepower uas xav tau, raws li cov hniav ua haujlwm ntau dua. Qhov loj dua lub kerf, qhov loj ntawm cov ntoo uas raug nkim los ntawm kev txiav.

HOOK OR RAKE- Lub kaum sab xis txiav lossis cov duab ntawm cov hniav. Lub kaum sab xis ntau dua, qhov hnyav dua cov hniav, thiab qhov txiav nrawm dua. Tab sis qhov kev txiav nrawm dua, qhov ceev ntawm cov hniav yuav blunt, thiab qhov tsis zoo ntawm qhov kawg ntawm qhov txiav. Aggressive blades yog tsim rau cov ntoo mos tab sis yuav tsis kav ntev thaum txiav cov ntoo tawv. Qhov me ntawm lub kaum sab xis, qhov tsis nruj ntawm cov hniav, qhov txiav qeeb qeeb, thiab qhov nyuaj ntawm cov ntoo uas cov hniav tsim nyog txiav. Hook hniav muaj lub kaum ntse ntse txiav thiab nqa daim ntawv ntawm lub vojvoog loj. Lawv yog siv rau kev txiav ceev uas qhov ua tiav tsis tseem ceeb. Rake hniav muaj lub kaum sab xis txiav thiab siv tau zoonto tiav ntawm qhov txiav.

GULET - Qhov chaw rau sawdust yuav tsum tau thauj los ntawm cov ntoo. Qhov loj dua tus hniav (pitch), qhov loj dua lub gullet.

RAKE ANGLE- Lub kaum sab xis ntawm qhov kawg ntawm tus hniav rov qab. Lub kaum sab xis ntau dua, qhov hnyav dua tus hniav, tab sis tus hniav tsis muaj zog.

BEAM Strength - Qhov no yog lub peev xwm ntawm cov hniav kom tiv thaiv kev khoov rov qab. Qhov dav ntawm cov hniav, qhov muaj zog ntawm lub nqaj zog; Yog li ntawd, ib tug 1 ″ hniav muaj ntau dua beam zog tshaj 1/8 ″ hniav thiab yuav txiav ncaj thiab yog tsim nyog rau resawing.

TSEEM CEEB- Qhov txiav ntug ntawm cov hniav saw.

BLADE BACK - Lub nraub qaum ntawm cov hniav uas khiav ntawm cov lus qhia rov qab.

BLADE MAINTENANCE- Tsis muaj ntau yam uas yuav tsum tau khaws cia ntawm cov hniav, tab sis hauv qab no yog ob peb lub ntsiab lus uas yuav pab koj khaws koj cov hniav hauv kev ua haujlwm siab tshaj plaws.

BLADE CLEANING- Ib txwm ntxuav cov hniav thaum koj tshem tawm ntawm lub tshuab. Yog hais tias koj tso nws gummy los yog nrog ntoo nyob rau hauv lub gullets, cov hniav yuav xeb. Rust yog tus yeeb ncuab ntawm tus neeg ua haujlwm ntoo. Thaum koj tshem cov hniav tawm ntawm lub tshuab lossis koj yuav tsis siv nws rau qee lub sijhawm, nws raug nquahu kom koj siv cov hniav. Muaj ib daim ntaub qhwv uas yog impregnated nrog siv quav ciab uas koj rub cov hniav rov qab. Lub wax yuav pleev xim rau cov hniav thiab yuav muab ib tug degree ntawm kev tiv thaiv xeb.

BLADE INSPECTION - Tshawb xyuas cov hniav kom tawg, cov hniav du, xeb thiab kev puas tsuaj txhua zaus koj muab tso rau hauv lub tshuab. Tsis txhob siv lub ntsej muag du lossis puas; lawv txaus ntshai. Yog tias koj cov hniav yog npub, muab nws rov qab los yog hloov nws.

BLADE STORAGE- Khaws cov hniav kom cov hniav tsis puas thiab yuav tsis ua rau koj raug mob. Ib txoj hauv kev yog khaws txhua cov hniav ntawm ib tug nuv nrog cov hniav tiv thaiv phab ntsa. Ntsia daim duab los yog ib daim ntawv ntoo rau ntawm phab ntsa kom cov hniav tiv thaiv kev puas tsuaj, thiab yog tias koj txhuam cov hniav nws yuav tsis ua rau raug mob.