Yuav ua li cas hov riam rau lub chav ua noj?

Yuav pib piav dab tsi riam tsis pom zoo hliav. Cov nab npawb ntawm cov khoom xws li lub caij nplooj zeeg mus rau hauv cov neeg uas siv ib tug tshwj xeeb txheej uas yog muaj ntau lub sij hawm tsub kom cov kuj ntawm tej ntug rau koj hnav. Tom qab lawv cov thawj abrasive machining nyuaj txheej, ntawm chav kawm, deleted. Tsis tas li ntawd, tej hub riam yuav tsis tau sharpening raws li lawv yeej tsis tupyatsya. Lawv tsuas yog drawback - nce fragility. Devices nrog ib tug serrated tej ntug yuav tsum tau ua nyob rau hauv txoj cav tov nrog laser tswj. Tom tsev, nws yog ib tug rarity, tab sis ib qho kev ywj regrinding rau ob sab erases cloves.

Vim li cas kuv zoo li loj hlob blunt riam thaum txiav? Qhov no yog rau ob yog vim li cas: delamination me me hais vim lub tsis sib haum xeeb kev quab yuam (hniav erasure) thiab skew symmetry dav hlau ntawm lub riam thaum lub sij hawm txiav ntawm cov khoom. Tshwj xeeb tshaj yog steel erased muaj, qhov twg nws muaj tus loj tshaj nra - nyob ntawm ntug ntawm cov hniav. Cov liab qab qhov muag, cov me hloov yog pom, tab sis lub weakening riam nuj nqi yuav twv tau maj ua quab yuam thov thaum lub sij hawm txiav.

Yuav ua li cas hov riam nraaj thiab nti? Tus thawj tshaj plaws ua - mus nqis peev pab rau zoo cov cuab yeej. Ob - pom zoo tias nyob rau hauv Ntxiv nrog rau qhov host tsis muaj leej twg hov cov khoom raws li nws xav ntawm nws tus kheej.

Ib tug ob peb lub tswv yim. Nws yog tsis tsim nyog ua ua rau cov hniav sib tsoo lub vajvoog, txij li thaum txhua steel yog tawv nyob rau hauv lawv cov kub ntau, thiab uncontrolled cua kub thaum lub sij hawm sib tsoo yuav lwj hniav irreversibly. Ntub riam thaum sib tsoo yog tsis tsim nyog, vim hais tias cov nyias ribbon ntawm steel ntsis overheats instantly! Yuav ua li cas hov riam, yog hais tias tsis tau siv tshwj xeeb pab kiag li lawm-sharpener? Tom qab tag nrho, lawv yog xis, tab sis tsis yog ib txwm zoo. Lawv lub sharpening txaus ntshai tsis coincide nrog lub kaum sab xis ntawm tus hniav, thiab lawv lub zog, lawv yuav swb raws tus hniav, tsim cov longitudinal grooves. Ntwav txhuam ntoo yuav tsum ua raws li ib lub xeem chaw uasi.

Yog hais tias ib tug tshiab los yog ib tug sharpened riam rau lub chav ua noj poob rau hauv lub sharpness, tej ntug reformats siv Musatov (pas nrig-cov ntaub ntawv ntawm steel los yog ceramic) los yog zoo whetstone. Chiv, qhov no yuav tau rov qab ob peb zaug, tab sis, ces cov hniav tseem yuav tau txhij txhua hliav.

Txij li thaum sharpening riam yog qhov zoo tshaj plaws rau ib tug tshwj xeeb cov pob zeb, koj yuav tsum xaiv qhov tseeb sib tsoo tuav. Lawv tuaj nrog cov zaubmov ntawm granularity:

• ntxhib - suited los pab txhawb qhov tseeb hliav kaum sab xis thiab zoo ntawm tus ciam;
• nruab nrab - rau feem ntau sib tsoo txheej txheem;
• nyias - rau qhov kawg hniav hloov.

Lub wider lub bar, qhov yooj yim dua nws yog kom tus cai kaum. Pob zeb nrog ib tug dav ntawm hais txog 5 cm yog feem ntau tsim. Muab nws yuav tsum yog nyob rau hauv cov ntaub so ntswg hauv ob sab phlu uas tsis swb rau ntawm qhov chaw thiab tsis kos nws. Cov hniav nyob rau hauv lub bar yog li ntawd nws yog ib txwm tsiv perpendicular mus rau tej ntug ntawm tus taw tes ntawm kev sib cuag thiab ntug rau pem hauv ntej, thaum thawb lub ntug ntawm lub kov mus rau lub ntsis.

Paub li cas hov riam, tseem ceeb heev kom muaj ib tug tas mus li rau ntawm cov hliav kaum sab xis ntawm 20 degrees rau ib tog ntawm tus hniav. Cov nyiaj kawg ntawm lub tso cai yuav tsum nyob twj ywm rau tus ua hauj lwm nto ntawm lub pob zeb, kev tiv thaiv hniav tsis ua hauj lwm, txwv tsis pub khawb lub sab ntawm cov hniav. Tom ntej no koj yuav tsum rov qab mus rau hniav rau nws cov thawj txoj hauj lwm thiab rov qab ua lub zog tshaj thiab tshaj dua, txhua lub sij hawm kom ib tug lub. Nws yog ib qho tseem ceeb rau lossi kom ua ntej ntawm lub bar hniav.

Thiab thaum kawg, ib tug tseem ceeb nyiaj: tsis xyuas qhov zoo ntawm sharpening nws cov ntiv tes. Nws yog zoo dua los tuav ib daim ntawv ntawm daim ntawv nrog ib tug txhais tes, thiab lwm yam sharply txiav nws hniav aloft. Ib tug ntse riam yuav yooj yim daws nrog xws li ib tug straightforward hauj lwm.