9H hais txog hardness thiab 9D hais txog qhov curvature ntawm daim nyias nyias.
Tab sis tsis muaj 9D tiag tiag, txawm tias muaj pes tsawg D tempered films tsuas yog muab faib ua peb curvatures: dav hlau, 2.5D, thiab 3D.
9H hais txog qhov nyuaj, uas qhov tseeb yog hais txog qhov tawv ntawm cov cwj mem, tsis yog Mohs hardness.Txawm tias ib daim iav tuaj yeem tshaj qhov hardness, uas kuj yog kev lag luam gimmick.
Hardness tau muab faib ua:
1. Kos hardness.Nws yog tsuas yog siv los sib piv cov degree ntawm softness thiab hardness ntawm txawv minerals.Txoj kev yog xaiv tus pas nrig nrog ib qho kawg nyuaj thiab ib qho muag ntawm lwm tus, thiab khawb cov khoom kuaj raws tus pas nrig, thiab txiav txim siab qhov muag thiab tawv ntawm cov khoom kuaj raws li txoj haujlwm ntawm khawb.Hais lus zoo, cov khawb ua los ntawm cov khoom tawv yog ntev dua, thiab cov khawb ua los ntawm cov khoom muag yog luv dua.
2. Nias-hauv hardness.Feem ntau yog siv rau cov ntaub ntawv hlau, txoj kev yog nias lub cim indenter rau hauv cov khoom kuaj nrog ib qho kev thauj khoom, thiab sib piv cov hardness ntawm cov khoom siv kuaj nrog qhov loj ntawm cov yas hauv zos deformation ntawm cov khoom siv.
Vim qhov sib txawv ntawm indenter, load thiab load ntev, muaj ntau yam indentation hardness, mas Brinell hardness, Rockwell hardness, Vickers hardness thiab microhardness.
3. Rebound hardness.Feem ntau yog siv rau cov ntaub ntawv hlau, txoj kev yog ua kom lub me me tshwj xeeb rauj poob los ntawm qhov siab ntawm qee yam los cuam tshuam cov qauv ntawm cov khoom siv los kuaj, thiab siv cov khoom siv zog khaws cia (thiab tom qab ntawd tso tawm) los ntawm cov qauv thaum lub cov txheej txheem cuam tshuam (los ntawm kev rov qab los ntawm cov rauj me me).dhia qhov siab txiav txim siab) los txiav txim siab hardness ntawm cov khoom.
Rockwell hardness test method yog American SP Proposed by Rockwell in 1919, nws yeej kov yeej cov lus saum toj no tsis txaus ntawm Brinell assay.Lub indenter siv rau Rockwell hardness yog lub pob zeb diamond cone nrog lub kaum sab xis ntawm 120 ° los yog lub pob steel nrog lub cheeb ntawm 1/16 nti (1 nti sib npaug 25.4 hli), thiab qhov tob indentation yog siv los ua lub hauv paus rau calibrating hardness. tus nqi.
Lub sij hawm xa tuaj: Nov-18-2022