Stainless hlau yeeb nkab yog qhov ntev hollow puag ncig steel, uas yog dav siv nyob rau ntau lub lag luam. Nws lub hardness tau muab faib ua cov hauv qab no peb hom:
Rockwell hardness
Lub Rockwell hardness kuaj ntawm cov yeeb nkab steel hlau yog tib yam li Brinell hardness kuaj, uas yog txoj kev kuaj ntshav kuaj ntshav txoj kev. Qhov txawv yog tias nws yog los ntsuas qhov tob ntawm cov kab mob indentation. Lub Rockwell hardness xeem yog tam sim no ib tug qauv tau siv. Ntawm lawv, HRC siv nyob rau hauv cov qauv yeeb nkab steel tsuas yog dhau los ntawm Brinell HB hardness, thiab Rockwell hardness tuaj yeem siv los txiav txim siab los ntawm cov mos heev mus rau cov khoom siv hlau nyuaj, them rau Brinell txoj kev uas yooj yim dua li Brinell txoj kev, thiab tus nqi hardness tuaj yeem nyeem ncaj qha rau ntawm lub dial ntawm lub tshuab hardness. Txawm li cas los xij, vim nws me me indentation, tus nqi hardness tsis yog raws li muaj tseeb li Brinell txoj kev.
Brinell hardness
Ntawm cov txheej txheem cov yeeb nkab steel hlau, Brinell hardness yog qhov feem ntau siv. Lub hardness ntawm cov khoom yog feem ntau qhia los ntawm txoj kab uas hla ntawm lub zawj, uas yog intuitive thiab yooj yim, tab sis tsis haum rau cov kav hlau tawv lossis tawv.
Vickers hardness
Vickers qhov nyuaj kuaj ntawm cov xeb hlau tsis xeb hlau kuj yog qhov ntsuas kev kuaj ntshav, uas tuaj yeem siv los txiav txim siab qhov nyuaj ntawm cov ntaub ntawv nyias nyias xim thiab txheej txheej saum npoo. Nws muaj cov txiaj ntsig tseem ceeb ntawm Brinell thiab Rockwell txoj kev, thiab nws kov yeej lawv qhov kev ua tsis tau zoo, tab sis nws tsis zoo li Luo.Vickers txoj kev yooj yim, thiab Vickers txoj kev tsis tshua siv hauv cov qauv yeeb nkab steel.
Kev xeem txog hardness
Rau cov kav hlau stainless nrog sab hauv diameters loj dua 6.0 hli thiab phab ntsa tuab tsawg dua 1.3mm, Webster W-B75 hardness tester tuaj yeem siv. Nws yog qhov nrawm heev thiab yooj yim rau ntsuas, thiab tsim nyog rau kev ntsuam xyuas sai, tsis muaj kev cuam tshuam kev kuaj xyuas ntawm cov hlau tsis huv. steel leeg. Rau cov kav hlau xeb nrog sab hauv dav dua 30mm thiab phab ntsa tuab tshaj li 1.2 hli, Rockwell hardness tester yog siv los ntsuas qhov nyuaj ntawm HRB thiab HRC. Stainless hlau leeg nrog qhov taub loj tshaj 30mm thiab phab ntsa tuab tsawg dua 1.2 hli siv saum npoo Rockwell hardness tester los ntsuas HRT lossis HRN hardness. Cov yeeb nkab steel hlau uas muaj qhov taub sab hauv tsawg dua 0mm thiab ntau dua 4.8mm siv tshwj xeeb Rockwell hardness cov yeeb yaj kiab los kuaj qhov nyuaj ntawm HR15T, thaum lub taub puab ntawm cov yeeb nkab steel hlau ntau dua 26mm, Sab hauv phab ntsa hardness ntawm cov yeeb nkab kuj tuaj yeem muab sim nrog Rockwell lossis Rockwell nto hardness tester.
