Yog vim li cas rau qhov yuam kev hauv Leeb hardness tester ntsuas

1. Kev ua yuam kev los ntawm cov khoom siv tshwj xeeb
Lub rooj hloov dua siab tshiab khaws cia hauv hardness tester tuaj yeem tsim qhov sib txawv rau cov hom hlau hauv qab no: Tag nrho cov austenitic steels, cov cuab yeej kub-resistant steels thiab ledeburitic chromium steels (cov cuab yeej steels). Cov ntaub ntawv nyuaj ua rau muaj kev nce hauv elastic modulus, yog li nce L Tus nqi qis. Hom hlau no yuav tsum tau sim rau ntawm ntu ntu. Kev txias txias hauv zos thiab tawv tawv yuav ua rau L tus nqi siab. Cov hlau nplaum hlau yuav muaj tus nqi qis L vim qhov cuam tshuam ntawm cov hlau nplaum.
2. Qhov yuam kev hauv kev tshawb nrhiav iav
Feem ntau, vim cov hniav me me, qhov kev xeem yuam kev yog qhov loj. Rau qhov no, tus neeg siv tuaj yeem tsim cov cuab yeej siv tau raws li qhov xwm txheej, uas yuav pab txo qhov yuam kev.
3. Kev cuam tshuam ntawm cov khoom elasticity thiab plasticity
Ntxiv nrog rau qhov muaj feem xyuam rau hardness thiab lub zog, Leeb tus nqi kuj muaj feem xyuam rau cov elastic modulus. Tus nqi hardness yog tus yam ntxwv ntawm cov khoom hardness thiab plasticity, vim hais tias cov khoom ntawm ob yuav tsum tau ntsuas ua ke. Hauv qhov elastic, nws yog thawj zaug pom tseeb cuam tshuam los ntawm E modulus. Hauv qhov no, thaum lub zog zoo li qub ntawm cov ntaub ntawv zoo ib yam tab sis tus nqi E txawv, cov khoom siv nrog tus nqi qis E yuav muaj qhov loj dua L.