Dab tsi ntawm cov hlau yog pom hniav? Nws puas haum rau riam?

Kaw cov hniav yog feem ntau ua los ntawm high - ceev steel (hss), alloy tuam hlau, lossis carbide steel, nyob ntawm daim ntawv thov. Siab - ceev steel pom li m2 thiab m42) muaj cov alloy ua thiab molybdenum, muab cov cua sov ua kom haum thiab haum rau kev txiav cov hlau. Alloy Tool Hlau Pom Blades (xws li 9crsi thiab Cr12Mov) ua tiav kev nyuaj los ntawm kev kho cua sov thiab siv cov ntoo sib txawv. Carbide kaw cov hniav (tungsten hlau) Siv tungsten carbide ua ib tug matrix thiab muab cov kev hnav zoo nkauj heev, feem ntau siv rau kev ntsuas tshuab. Technically, pom cov ntaub ntawv hniav nyias yuav tsum sib npaug, kev ua kom nruj, thiab kub ua hauj lwm. Siab - Ceev hlau ceev ceev nws lub hardness ntawm qhov kub ntawm qhov kub txog 600 degree, ua rau nws haum rau kev txiav. Alloy tuam hlau tuaj yeem ncav cuag txoj kev tawv ntawm HRC60 lossis saum toj no los ntawm quenching thiab tempering, tab sis nws yog nkig ntau. Carbide tuaj yeem ncav cuag txoj kev tawv ntawm HRA90, tab sis muaj qhov cuam tshuam tsawg dua. Cov qauv kev lag luam feem ntau qhia kom meej ntawm HRC58}}}}}}}}}}}}}}} rau ntoo pom hniav. Seb cov khoom haum rau ua kom riam yog nyob ntawm qhov teeb meem tshwj xeeb. Thaum lub siab {{{}} ceev steel pom kev siv cov cuab yeej siv, tab sis nws yuav tsum tau hloov kho cua sov (xws li qis} kub kom txo cov brittleness). Alloy Tool Hlau Pom Tuaj Nrog Ib Cov Ntsiab Lus Carbon (xws li 0.9% -1.3%) tuaj yeem ua rau muaj kev lom zem thiab quenching, tab sis saib yuav tsum tau them rau kev ntxhov siab. Carbide pom cov hniav feem ntau tsis haum rau txoj kev ncaj ncaj vim lawv cov kev sib tw siab, tshwj tsis yog siv hauv cov xwm txheej tshwj xeeb (xws li engraving riam). Hauv cov kev siv tswv yim, muaj ob qhov teeb meem loj uas tau hais tawm thaum hloov pauv tawg: ib qho yog cov sib xyaw ua ke yog cov kev tsis quav ntsej lossis tsis quav ntsej, uas tej zaum yuav muaj kev cais); Lwm qhov yog cov duab rectrical (pom cov hniav yog feem ntau nyias thiab yuav tsum muaj kev sib tw lossis cov qhaub cij). Zuag qhia tag nrho, qee tus pom cov ntaub ntawv hniav yas (xws li cov hlau ceev thiab alloy kev kho mob, tab sis lawv cov kev ua tau zoo, thiab lawv cov kev ua tau zoo li cov khoom siv kub tshwj xeeb.