Cov khoom siv rau kev ua tiav cov khoom raug muab faib ua ob pawg, cov khoom siv hlau thiab cov khoom tsis yog xim hlau. Rau cov khoom siv hlau, lub hardness yog stainless hlau siab tshaj plaws, ua raws li cam khwb cia hlau, ua raws li tooj liab, thiab thaum kawg txhuas. Kev ua cov ceramics, plastics, thiab lwm yam belongs rau kev ua cov ntaub ntawv uas tsis yog xim hlau.
1. Thawj yog qhov yuav tsum tau ua rau lub hardness ntawm cov khoom. Rau qee lub sijhawm, qhov siab dua qhov hardness ntawm cov khoom, qhov zoo dua, tab sis nws tsuas yog txwv rau cov hardness yuav tsum tau ntawm machined qhov chaw. Cov khoom ua tiav tsis tuaj yeem nyuaj dhau. Yog tias nws nyuaj dua li cov khoom siv tshuab, nws tsis tuaj yeem machined.
2. Qhov thib ob, cov khoom siv yuav tsum yog mos thiab tawv, tsawg kawg yog ib qib qis dua qhov hardness ntawm lub tshuab qhov chaw. Nyob rau tib lub sijhawm, nws kuj nyob ntawm kev ua haujlwm ntawm cov khoom siv machined thiab xaiv cov khoom tsim nyog rau cov khoom.
Nyob rau hauv luv luv, precision machining tseem muaj qee qhov yuav tsum tau ua rau cov ntaub ntawv, tsis yog txhua cov ntaub ntawv tsim nyog rau kev ua, xws li cov ntaub ntawv uas yog mos los yog tawv dhau, cov qub tsis tsim nyog rau kev ua, thaum lub sij hawm tom kawg tsis tuaj yeem ua tiav.
Yog li ntawd, qhov yooj yim tshaj plaws yog tias koj yuav tsum tau them sai sai rau qhov ntom ntawm cov khoom ua ntej ua. Yog hais tias lub ntom ntom dhau lawm, nws yog sib npaug rau lub siab tawv. Yog hais tias lub hardness ntau tshaj qhov hardness ntawm lub tshuab (tig lub tshuab dhos), nws tsis tuaj yeem ua tiav. Tsis tsuas yog Nws tsuas yog ua rau cov khoom puas tsuaj xwb, tab sis kuj ua rau muaj kev phom sij, xws li cov cuab yeej tig ya tawm thiab ua rau neeg mob. Yog li ntawd, feem ntau, rau kev siv tshuab, cov khoom siv zoo yuav tsum qis dua qhov hardness ntawm lub tshuab cuab yeej, kom nws tuaj yeem ua tiav.
Yog tias koj muaj lus nug, thov hu rau peb