1. Cov hlau uas tau quenched thiab tempered
Qhov kev sim qhov nyuaj ntawm cov hlau quenched thiab tempered feem ntau siv Rockwell hardness tester HRC nplai. Yog tias cov khoom nyias thiab HRC nplai tsis haum, HRA nplai siv tau hloov. Yog tias cov khoom nyias dua, qhov saum npoo ntawm Rockwell hardness nplai HR15N, HR30N, lossis HR45N siv tau.
2. Cov hlau tawv tawv
Hauv kev tsim khoom lag luam, qee zaum lub plawv ntawm cov khoom ua haujlwm yuav tsum muaj lub zog zoo, thaum qhov chaw kuj yuav tsum muaj lub zog siab thiab kev tiv thaiv hnav. Hauv qhov no, kev quenching siab zaus, tshuaj carburization, nitriding, carbonitriding thiab lwm yam txheej txheem yog siv los ua kom lub ntsej muag tawv ntawm cov khoom ua haujlwm. Lub thickness ntawm cov txheej tawv tawv feem ntau yog ntawm ob peb millimeters thiab ob peb millimeters. Rau cov ntaub ntawv nrog cov txheej tawv tawv tawv tuab dua, HRC nplai tuaj yeem siv los sim lawv qhov nyuaj. Rau cov hlau tawv tawv nruab nrab tuab, HRD lossis HRA nplai tuaj yeem siv. Rau cov txheej tawv tawv nyias nyias, yuav tsum siv cov nplai Rockwell hardness HR15N, HR30N, thiab HR45N. Rau cov txheej tawv tawv nyias nyias, yuav tsum siv lub micro Vickers hardness tester lossis lub ultrasonic hardness tester.
3. Cov hlau annealed, cov hlau normalized, cov hlau me me
Muaj ntau cov khoom siv hlau uas tsim tawm hauv lub xeev annealed lossis normalized, thiab qee cov hlau txias dov kuj raug ntsuas raws li ntau qib ntawm annealing. Kev ntsuas qhov nyuaj ntawm ntau yam hlau annealed feem ntau siv HRB nplai, thiab qee zaum HRF nplai kuj siv rau cov phaj mos dua thiab nyias dua. Rau cov phaj nyias, Rockwell hardness testers HR15T, HR30T, thiab HR45T nplai yuav tsum tau siv.
4. Cov hlau tsis xeb
Cov khoom siv hlau tsis xeb feem ntau yog muab rau hauv cov xeev xws li annealing, quenching, tempering, thiab cov kua khov. Cov qauv hauv tebchaws teev cov nqi siab thiab qis dua sib xws, thiab kev sim hardness feem ntau siv Rockwell hardness tester HRC lossis HRB nplai. HRB nplai yuav tsum siv rau austenitic thiab ferritic stainless hlau, HRC nplai ntawm Rockwell hardness tester yuav tsum siv rau martensite thiab precipitation hardening stainless hlau, thiab HRN nplai lossis HRT nplai ntawm Rockwell hardness tester yuav tsum siv rau stainless hlau nyias-walled raj thiab cov ntaub ntawv ntawv nrog tuab tsawg dua 1 ~ 2 hli.
5. Hlau forged
Feem ntau, kev ntsuas qhov nyuaj ntawm Brinell hardness yog siv rau cov hlau forged, vim tias cov qauv me me ntawm cov hlau forged tsis sib xws txaus, thiab qhov kev ntsuas qhov nyuaj ntawm Brinell hardness yog qhov loj heev. Yog li ntawd, kev ntsuas qhov nyuaj ntawm Brinell tuaj yeem cuam tshuam cov txiaj ntsig ntawm cov qauv me me thiab cov khoom ntawm txhua qhov ntawm cov khoom.
6. Hlau cam khwb cia
Cov ntaub ntawv hlau cam khwb feem ntau yog cov qauv tsis sib xws thiab cov noob loj, yog li Brinell hardness hardness test feem ntau yog siv. Lub Rockwell hardness tester siv tau rau kev sim hardness ntawm qee cov hlau cam khwb. Yog tias tsis muaj thaj chaw txaus ntawm qhov me me ntawm cov nplej zoo casting rau Brinell hardness hardness test, HRB lossis HRC scale feem ntau siv tau los sim qhov hardness, tab sis nws zoo dua los siv HRE lossis HRK scale, vim tias HRE thiab HRK scales siv 3.175mm txoj kab uas hla steel pob, uas tuaj yeem tau txais qhov nruab nrab nyeem zoo dua li 1.588mm txoj kab uas hla steel pob.
Cov khoom siv hlau nplaum uas tawv tawv feem ntau siv lub Rockwell hardness tester HRC. Yog tias cov khoom tsis sib npaug, ntau cov ntaub ntawv tuaj yeem ntsuas thiab tus nqi nruab nrab tau txais.
7. Sintered carbide (hard alloy)
Kev ntsuam xyuas qhov nyuaj ntawm cov khoom siv hlau nplaum feem ntau tsuas yog siv Rockwell hardness tester HRA nplai.
8. Hmoov
Lub sijhawm tshaj tawm: Lub Rau Hli-02-2023
