1. quenched thiab tempered steel
Kev sim hardness ntawm quenched thiab tempered steel mas siv Rockwell hardness tester HRC nplai.Yog tias cov khoom nyias nyias thiab HRC nplai tsis haum, HRA nplai tuaj yeem siv tau.Yog hais tias cov khoom yog thinner, nto Rockwell hardness scales HR15N, HR30N, los yog HR45N yuav siv tau.
2. Nto hardened hlau
Hauv kev tsim khoom lag luam, qee zaum cov tub ntxhais ntawm cov khoom ua haujlwm yuav tsum muaj qhov zoo toughness, thaum lub ntsej muag tseem yuav tsum muaj siab hardness thiab hnav tsis kam.Nyob rau hauv cov ntaub ntawv no, high-frequency quenching, tshuaj carburization, nitriding, carbonitriding thiab lwm yam txheej txheem yog siv los nqa tawm kev kho deg hardening ntawm lub workpiece.Lub thickness ntawm txheej txheej hardening feem ntau yog nruab nrab ntawm ob peb millimeters thiab ob peb millimeters.Rau cov ntaub ntawv nrog cov txheej tuab tuab, HRC nplai tuaj yeem siv los ntsuas lawv qhov tawv.Rau nruab nrab thickness nto hardening steels, HRD lossis HRA nplai tuaj yeem siv.Rau cov txheej txheej txheej tawv tawv tawv, nto Rockwell hardness nplai HR15N, HR30N, thiab HR45N yuav tsum tau siv.Rau thinner nto hardened txheej, yuav tsum siv micro Vickers hardness tester los yog ultrasonic hardness tester.
3. Annealed steel, normalized steel, me me hlau
Ntau cov ntaub ntawv hlau yog tsim nyob rau hauv lub xeev annealed los yog normalized, thiab qee qhov txias dov steel phaj kuj tau muab qhab nia raws li qib sib txawv ntawm annealing.Kev sim hardness ntawm ntau yam annealed steels feem ntau siv HRB nplai, thiab qee zaum HRF nplai kuj siv rau cov phaj softer thiab nyias.Rau cov phaj nyias, Rockwell hardness testers HR15T, HR30T, thiab HR45T nplai yuav tsum tau siv.
4. Stainless hlau
Stainless hlau cov ntaub ntawv feem ntau yog muab nyob rau hauv lub xeev xws li annealing, quenching, tempering, thiab cov khoom tov.Lub teb chaws cov qauv qhia txog qhov sib npaug ntawm qhov sib npaug thiab qis hardness, thiab kev ntsuas 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 tau siv rau martensite thiab nag lossis daus hardening stainless hlau, thiab HRN nplai lossis HRT nplai ntawm Rockwell hardness tester yuav tsum tau siv rau stainless hlau nyias- phab ntsa cov hlab thiab cov ntaub ntawv uas muaj thickness tsawg dua 1 ~ 2 hli.
5. Forged hlau
Brinell hardness hardness test feem ntau yog siv rau forged steel, vim hais tias lub microstructure ntawm forged hlau tsis zoo txaus, thiab Brinell hardness test indentation yog loj.Yog li, Brinell hardness test tuaj yeem cuam tshuam cov txiaj ntsig ntawm microstructure thiab cov khoom ntawm txhua qhov ntawm cov khoom.
6. Cam khwb cia hlau
Cov ntaub ntawv hlau cam khwb cia feem ntau yog tus cwj pwm los ntawm cov qauv tsis sib xws thiab cov nplej ntxhib, yog li Brinell hardness test feem ntau yog siv.Lub Rockwell hardness tester tuaj yeem siv rau kev sim hardness ntawm qee qhov cam khwb cia hlau workpieces.Qhov chaw tsis txaus ntawm qhov me me ntawm cov hmoov nplej zoo rau Brinell hardness hardness test, HRB lossis HRC nplai feem ntau tuaj yeem siv los ntsuas qhov nyuaj, tab sis nws yog qhov zoo dua los siv HRE lossis HRK nplai, vim HRE thiab HRK nplai siv 3.175mm txoj kab uas hla steel pob, uas tuaj yeem tau txais kev nyeem ntawv nruab nrab zoo dua li 1.588mm txoj kab uas hla steel pob.
Hard malleable cam khwb cia hlau cov ntaub ntawv feem ntau siv Rockwell hardness tester HRC.Yog tias cov khoom tsis sib npaug, ntau cov ntaub ntawv tuaj yeem ntsuas thiab qhov nruab nrab tus nqi coj mus.
7. Sintered carbide (hard alloy)
Kev kuaj hardness ntawm cov ntaub ntawv nyuaj alloy feem ntau tsuas yog siv Rockwell hardness tester HRA nplai.
8. hmoov
Post lub sij hawm: Jun-02-2023
