Niaj hnub no, kev lag luam hlau abrasive yog sib xyaw. Vim yog txoj kev tsim tshwj xeeb ntawm kev txhaj tshuaj steel thiab steel grit, nws yog qhov yooj yim rau kev ua. Yog li ntawd, ntau cov khoom me me thiab kev ua lag luam tau muab tso rau hauv ntau lawm, ua rau muaj qhov sib txawv thiab tus nqi ntawm cov hlau txhaj tshuaj thiab steel grit. Nyob rau hauv thawj qhov teeb meem, thiab vim hais tias cov hlau txhaj tshuaj thiab steel grit muaj cov ntaub ntawv sib txawv thiab cov qauv, nws coj teeb meem rau cov neeg siv khoom xaiv, yog li tus nqi siab dua ntawm cov hlau txhaj tshuaj thiab steel grit, qhov zoo dua?
Kuv ntseeg tias ntau tus neeg siv khoom tsis ntseeg, thiab cov hauv qab no yuav daws cov kev tsis txaus siab rau txhua tus neeg: txhawm rau ua kom tau raws li qhov yuav tsum tau ua ntawm lub workpiece, nws yog qhov tseem ceeb rau xaiv qhov raug thiab haum steel txhaj tshuaj.
Kev xaiv kom raug ntawm cov hlau txhaj tshuaj thiab steel grit yuav tsum tau them sai sai rau cov teeb meem hauv qab no: kev txiav txim siab cov hlau txhaj tshuaj thiab steel grit feem ntau yog nyob ntawm hom workpiece koj xav tau, txhuas txhaj tshuaj lossis stainless hlau txhaj tshuaj feem ntau yog siv rau cov hlau tsis muaj hlau; zoo tib yam steel vuam qhov chaw, castings, steel, thiab lwm yam. siv steel txhaj; Qhov loj ntawm txoj kab uas hla ntawm cov hlau txhaj tshuaj thiab steel grit, qhov siab dua qhov huv ntawm qhov roughness, thiab qhov ua haujlwm ntau dua; Kev tu kom zoo ntawm cov hlau tsis sib xws lossis steel hlau txiav txhaj tshuaj yog siab dua li qhov kev txhaj tshuaj kheej kheej, tab sis qhov roughness saum npoo kuj siab.
Lub projectile nrog kev ua haujlwm siab tu kuj hnav cov khoom siv sai, tab sis qhov no tsuas yog xam raws li lub sijhawm siv. Piv nrog rau kev tsim khoom, kev hnav tsis yog ceev; lub hardness ntawm steel txhaj thiab steel grit yog proportional rau lub ceev ceev. Tab sis nws yog inversely proportional rau lifespan. Kev txhaj tshuaj steel feem ntau yog siv los ntxuav lub workpiece. Kev xaiv ntawm cov hlau txhaj tshuaj yog proportional rau kev ua hauj lwm efficiency. Kev xaiv kom raug ntawm cov hlau txhaj tshuaj yog tus yuam sij los txhim kho kev ua haujlwm zoo. Thaum siv cov hlau txhaj tshuaj, nws yog ib qho tsim nyog los xaiv cov hlau txhaj tshuaj tsim nyog raws li cov khoom siv thiab hardness ntawm lub workpiece, thiaj li txhim kho lub neej kev pab cuam ntawm cov hlau txhaj tshuaj.
Qhov siab dua ntawm cov hlau txhaj tshuaj thiab steel grit, qhov ceev ceev ceev, tab sis lub neej luv luv thiab kev siv loj, yog li qhov hardness yuav tsum yog nruab nrab (kwv yees li HRC{0}} yog qhov tsim nyog) rau kev siv zoo tshaj plaws. Xaiv cov hlau txhaj tshuaj nrog cov hardness me ntsis thiab zoo heev resilience, uas tuaj yeem ncav cuag txhua qhov chaw hauv chav tu, thiab tuaj yeem txo lub sijhawm ua haujlwm. Yog li ntawd, thaum xaiv steel txhaj tshuaj thiab steel grit, tsis txhob blindly nrhiav tus nqi, nws yog qhov zoo tshaj plaws los xaiv ib tug uas haum koj workpiece.
