Riam riam: yuav ua li cas thiaj ntse. Yees duab
Txhua tus niam tsev paub tias nws tsis yooj yim npaum li cas los ua noj siv rab riam npub lossis tsis zoo. Qee tus neeg sim ua kom cov riam ntawm lawv tus kheej, tab sis tsuas yog kev ua kom zoo, ua raws li cov lus qhia ntawm tus kws tshaj lij, yuav khaws cov hlau ntawm riam thiab ua kom nws cov hniav zoo kawg nkaus.
Cov riam ntse: yuav ua li cas kom riam ntse
Nws tsis muaj teeb meem dab tsi hom lossis qhov zoo ntawm koj rab riam muaj - sai lossis tom qab nws yuav dhau los ua npub, thiab tsis muaj kev paub meej koj tsis tuaj yeem rov qab mus rau nws qhov qub qub. Yuav pib nrog, koj yuav tsum paub qhov hardness ntawm cov hlau - nws cov txiaj ntsig zoo yuav tsum nyob hauv thaj tsam ntawm 45 txog 60 HRC. Hard steel yuav crumble yooj yim, thiab lub teeb steel yuav wrinkle.
Koj tuaj yeem tshawb xyuas qhov hardness ntawm cov hlau los ntawm kev khiav ib cov ntaub ntawv raws li riam hniav. Nrog lub teeb siab, nws yuav tsum swb dawb, thiab nrog lub zog siab, maj mam cling rau saum npoo.
Nws yog yuav luag tsis yooj yim sua rau hostess los txiav txim qhov zoo ntawm cov hniav los ntawm lub qhov muag, vim hais tias nws yog txuam nrog tsis yog li ntawd ntau npaum li cas nrog cov yam ntxwv ntawm steel, tab sis nrog rau cov cuab yeej ntawm nws siv thiab conscientiousness ntawm lub khw.
Niaj hnub no muaj ntau yam cuab yeej rau sharpening riam - tuav, sib tsoo siv, musats, hluav taws xob thiab txhua yam cuab yeej. Cov kws tshaj lij kws tshaj lij tsis pheej yig, tab sis nco ntsoov tias qhov pheej yig thaiv yuav tsis ua kom koj cov riam thiab tuaj yeem ua kom puas tag.
Thaum xaiv whetstone, saib nws tus nqi. Ib lub cuab yeej zoo yuav ua rau koj rov qab tsawg kawg nees nkaum duas las. Tus naj npawb ntawm cov nplej abrasive ib cubic millimeter yuav tsum phim tus lej ntawm daim ntawv lo. Rau qhov zoo sharpening, koj yuav xav tau ob tug tuav uas koj yuav sharpen thiab tom qab ntawd zom cov riam hniav.
Musats yog tsim los ua kom ncaj cov ntug txiav thiab tuav lub ntse ntawm cov hniav yam tsis muaj sharpening. Lawv zoo li ntau yam ntaub ntawv thiab feem ntau yog siv los ua cov riam hnyav hnyav.
Musata tsuas yog haum rau cov riam uas tseem tsis tau poob lawv qhov qub sharpness; txwv tsis pub, kev ua kom zoo zoo yog qhov tseem ceeb
Sib tsoo txoj siv sia thiab tshuab nrog abrasive (los yog xav) lub log yog cov cuab yeej tshaj lij uas ua kom ntse thiab zom cov hniav hauv cov khoom siv riam. Lawv kuj tau siv los ntawm cov neeg ua haujlwm craftsmen uas ntse nyob rau hauv private rhiav. Yog tias koj tsis tau ua nrog cov cuab yeej zoo li no, tsis txhob sim - koj yuav ua rau lub tshuab thiab cov hniav puas.
Mechanical thiab hluav taws xob sharpeners
Mechanical riam sharpeners yog siv los ua txiab thiab riam hauv chav ua noj. Ntawm lawv qhov zoo yog tus nqi qis thiab kev ua haujlwm yooj yim, txawm li cas los xij, qhov zoo ntawm kev ua kom zoo thiab lawv tsim nyog. Ib rab riam nrawm nrawm yuav npub zoo nkauj sai, yog li, sib nrug ntawm chav ua noj, tsis muaj dab tsi ntxiv yuav tsum tau sharpened nrog lawv.
Nco ntsoov tias kev ua kom zoo ntawm cov hniav tuaj yeem siv li 30 feeb lossis 30 teev - nyob ntawm seb cov hniav zoo li cas.
Hluav taws xob riam-cutters tau dhau los ua neeg nyiam dua vim lawv cov khoom zoo siab thiab sib tsoo ntawm cov hniav ntawm txhua lub hom phiaj. Cov cuab yeej no tau xaiv qhov zoo tshaj plaws tig lub kaum sab xis thiab yog tsim rau ncaj, wavy hniav, nrog rau cov ntsia hlau thiab txiab. Ib qho hluav taws xob sharpener yuav sai sai rov qab txawm lub dullest hniav thiab polish nws nto nrog high quality.
Txoj hauv kev kom yog rab riam riam pib los ntawm kev siv cov pob zeb ntxhib, uas koj yuav tsum tau txhuam cov riam kom txog thaum lub sawb hlau (burr) tshwm rau ntawm qhov txiav ntawm cov hniav. Tom qab ntawd, koj yuav tsum hloov lub thaiv nrog cov cuab yeej finer-grained.
Nws yog ib qho tsim nyog yuav tsum tau muab lub ntsej muag ntse rau ntawm qhov chaw tiaj tus, nyob ruaj ruaj kom tswj tau cov txheej txheem zoo dua
Taug kev txiav ntug ntawm riam raws lub bar (kev taw qhia - rau pem hauv ntej), muab tso rau nws perpendicular mus rau cov kev taw qhia ntawm kev mus los. Nyob rau hauv rooj plaub no, lub kaum sab xis ntawm inclination yuav tsum nyob ze li sai tau mus rau 90 degrees - qhov no koj yuav sharpen cov hniav sib npaug zos rau tag nrho ntev. Lub kaum sab xis ntawm qhov chaw ua haujlwm ntawm whetstone thiab lub dav hlau ntawm cov hniav yuav tsum yog 20-25 degrees. Txhawm rau ncav cuag nws, nqa tus ntiv tes me ntsis kom txog thaum koj mus txog qhov chaw uas cov hniav nkhaus.
Tom qab coj lub zog mus rau qhov kawg ntawm lub bar, tib lub sij hawm ncav cuag ntawm ntug ntawm riam, ua kom cov hniav tsis tawg thiab tsis khawb nws sab saum npoo. Rov ua qhov kev hloov pauv rau ob sab ntawm cov hniav ntau zaus yam tsis tau nias lub zog ntawm qhov thaiv: koj yuav tsis ua kom nrawm dua, tab sis koj yuav poob nws qhov tseeb. Koj yuav tsum tau coj cov hniav nyob rau hauv lub sharpening bar kom zoo zoo thiab sib npaug, thaum sim tswj lub kaum sab xis, qhov no tsuas yog txoj kev koj riam yuav tau txais cov khoom zoo.
Thaum kawg ntawm sharpening, riam yuav tsum tau sanded kom nws sharpness rau lub sij hawm ntev. Tsis tas li ntawd, nyob rau hauv tus txheej txheem ntawm kev sib tsoo, lub burr ntawm txiav ntug ntawm cov hniav raug tshem tawm, tom qab uas cov txheej txheem ntawm riam ua impeccably smooth thiab tso cai rau koj siv ib tug ntse riam rau ntev. Cov kev txav mus los yog tib yam li kev txav txav, tab sis cov xuab zeb thaiv yuav tsum muaj cov nplej zoo heev.