Yuav muaj kev poob qis hauv kev siv cov hlau tua thiab grit, thiab yuav muaj kev poob ntau vim yog txoj kev siv thiab cov khoom sib txawv ntawm kev siv. Yog li koj puas paub tias kev pabcuam lub neej ntawm kev txhaj tshuaj steel nrog sib txawv kuj sib txawv?
Feem ntau, lub hardness ntawm cov hlau txhaj tshuaj yog sib npaug rau nws cov kev ntxuav kom huv, uas yog txhais tau tias kev siv cov kev txhaj tshuaj steel, uas tseem ua tau ntau dua thiab cov kev pabcuam lub neej yuav luv dua.
Txhaj koob txhaj tshuaj steel muaj peb txoj phuam sib txawv: p (45-51hrc), h (60-55hrc). Peb coj p hardness thiab h hardness ua piv txwv rau kev sib piv:
P Hardness feem ntau yog HRC45 ~ 51, ua qee qhov nyuaj rau hrc57 ~ 62. Lawv tau txais kev pabcuam zoo dua li H tawv, thiab ntau cov ntawv thov.
H Qhov nyuaj yog HRC60-68, no hom ntawm steel txhaj hardness yog siab, cov tub yees yooj yim heev, lub neej luv, daim ntawv thov tsis dav heev. Mas siv nyob rau hauv cov chaw uas yuav tsum tau txhaj tshuaj rau kev txhaj tshuaj ntau.
Yog li ntawd, feem ntau ntawm cov neeg muas zaub yuav cov hlau txhaj nrog p hardness.
Raws li kev ntsuam xyuas, peb pom tias tus naj npawb ntawm cov hlau tua nrog P hardness yog siab tshaj qhov ntawm h hardness, H puas yog li ntawm xyoo dhau los, thiab P hardness voj muaj peev xwm ncav cuag 2600 zaug. Koj tau sim pes tsawg xyoo?
Lub Sijhawm Post: Oct-28-2024
