Yuav muaj kev poob qis hauv kev siv cov hlau txhaj thiab cov xuab zeb, thiab yuav muaj kev poob sib txawv vim yog txoj kev siv thiab cov khoom siv sib txawv. Yog li koj puas paub tias lub neej ua haujlwm ntawm cov hlau txhaj nrog qhov nyuaj sib txawv kuj txawv?
Feem ntau, qhov nyuaj ntawm cov hlau txhaj tshuaj yog proportional rau nws qhov ceev ntxuav, uas yog, qhov nyuaj ntawm cov hlau txhaj tshuaj siab dua, qhov ceev ntxuav nws qhov ceev, uas kuj txhais tau tias kev siv cov hlau txhaj tshuaj yuav ntau dua thiab lub neej ua haujlwm yuav luv dua.
Cov hlau txhaj tshuaj muaj peb qhov nyuaj sib txawv: P (45-51HRC), H (60-68HRC), L (50-55HRC). Peb siv P hardness thiab H hardness ua piv txwv rau kev sib piv:
P hardness feem ntau yog HRC45 ~ 51, ua tiav qee cov hlau tawv, tuaj yeem ua rau qhov nyuaj rau HRC57 ~ 62. Lawv muaj kev tawv zoo, lub neej ua haujlwm ntev dua li H hardness, thiab ntau yam kev siv.
H hardness yog HRC60-68, hom hlau no muaj qhov hardness siab, lub tub yees khov kho heev, yooj yim tawg, lub neej luv luv, kev siv tsis dav heev. Feem ntau siv rau hauv qhov chaw uas xav tau kev siv zog siab.
Yog li ntawd, feem ntau ntawm cov neeg siv khoom yuav cov hlau txhaj tshuaj nrog P hardness.
Raws li qhov kev sim, peb pom tias tus naj npawb ntawm cov voj voog ntawm cov hlau tua nrog P hardness siab dua li ntawm H hardness, H hardness yog li 2300 zaug, thiab P hardness voj voog tuaj yeem ncav cuag 2600 zaug. Koj tau sim pes tsawg lub voj voog?
Lub sijhawm tshaj tawm: Lub Kaum Hli-28-2024
