Brinell hardness test yog tsim los ntawm Swedish engineer Johan August Brinell nyob rau hauv 1900 thiab yog thawj zaug siv los ntsuas qhov hardness ntawm hlau.
(1) HB10/3000
①Test txoj kev thiab lub hauv paus ntsiab lus: Lub pob steel nrog lub cheeb ntawm 10 hli yog nias rau hauv cov khoom nto nyob rau hauv ib tug load ntawm 3000 kg, thiab lub indentation txoj kab uas hla yog ntsuas los xam cov hardness tus nqi.
②Cov ntaub ntawv siv tau: Haum rau cov khoom siv hlau hnyav xws li cam khwb cia hlau, tawv steel, hnyav alloys, thiab lwm yam.
③Cov xwm txheej ntawm daim ntawv thov: Cov khoom siv ntawm cov tshuab hnyav thiab khoom siv. Hardness kuaj ntawm loj castings thiab forgings. Kev tswj xyuas zoo hauv engineering thiab kev tsim khoom.
④ Cov yam ntxwv thiab qhov zoo: Kev thauj khoom loj: Haum rau cov ntaub ntawv tuab thiab tawv, tuaj yeem tiv taus siab dua, thiab xyuas kom meej qhov ntsuas tau. Durability: Lub pob steel indenter muaj qhov ua haujlwm siab thiab tsim nyog rau lub sijhawm ntev thiab rov siv dua. Kev siv ntau yam: Muaj peev xwm sim ntau yam khoom siv hlau nyuaj.
⑤ Cov lus ceeb toom lossis kev txwv: Cov qauv loj: yuav tsum muaj cov qauv loj dua los xyuas kom meej tias qhov indentation loj txaus thiab raug, thiab qhov saum npoo ntawm cov qauv yuav tsum tiaj tus thiab huv si. Cov kev cai saum npoo: Qhov saum npoo yuav tsum du thiab tsis muaj impurities los xyuas kom meej qhov tseeb ntawm kev ntsuas. Kev saib xyuas cov cuab yeej: Cov cuab yeej yuav tsum tau ntsuas thiab tswj xyuas tsis tu ncua kom ntseeg tau qhov tseeb thiab rov ua dua ntawm qhov kev xeem.
(2) HB5/750
① Kev sim thiab cov hauv paus ntsiab lus: Siv lub pob steel nrog txoj kab uas hla ntawm 5 hli los nias rau hauv cov khoom saum npoo hauv qab ntawm qhov hnyav ntawm 750 kg, thiab ntsuas qhov indentation txoj kab uas hla los xam cov nqi hardness.
②Cov ntaub ntawv siv tau: Siv tau rau cov khoom siv hlau nrog qhov nruab nrab hardness, xws li tooj liab alloys, aluminium alloys, thiab nruab nrab hardness steel. ③ Cov xwm txheej ntawm daim ntawv thov: Kev tswj xyuas zoo ntawm cov khoom siv hlau hardness nruab nrab. Cov ntaub ntawv tshawb fawb thiab kev tsim kho thiab kev sim kuaj. Kev ntsuam xyuas ntawm cov khoom hardness thaum tsim thiab ua. ④ Nta thiab qhov zoo: nruab nrab load: Muaj feem xyuam rau cov ntaub ntawv uas nruab nrab hardness thiab muaj peev xwm ntsuas tau lawv hardness. Flexible application: Muaj feem xyuam rau ntau yam ntawm cov khoom siv hardness nruab nrab nrog kev hloov tau zoo. High repeatability: Muab kev ntsuas ruaj khov thiab zoo ib yam.
⑥ Cov lus ceeb toom lossis kev txwv: Kev npaj ua qauv: Cov qauv saum npoo yuav tsum tiaj tus thiab huv si kom ntseeg tau qhov tseeb ntawm qhov ntsuas ntsuas. Cov kev txwv ntawm cov khoom siv: Rau cov ntaub ntawv mos los yog tawv heev, lwm txoj kev sim hardness yuav tsum tau xaiv. Kev tu cov cuab yeej: Cov cuab yeej yuav tsum tau ntsuas thiab tswj xyuas tsis tu ncua kom ntseeg tau qhov tseeb thiab kev ntseeg siab ntawm kev ntsuas.
(3) HB2.5/187.5
① Kev sim thiab txoj hauv kev: Siv lub pob steel nrog txoj kab uas hla ntawm 2.5 hli los nias rau hauv cov khoom nto hauv qab ntawm qhov hnyav ntawm 187.5 kg, thiab ntsuas qhov indentation txoj kab uas hla los xam cov nqi hardness.
② Siv tau cov khoom siv: Siv tau rau cov ntaub ntawv hlau softer thiab qee cov hlau mos, xws li txhuas, txhuas alloy, thiab cov hlau mos.
③Cov xwm txheej ntawm daim ntawv thov: Kev tswj xyuas zoo ntawm cov khoom siv hlau mos. Cov khoom siv kuaj hauv cov khoom siv hluav taws xob thiab hluav taws xob. Kev sim hardness ntawm cov ntaub ntawv mos thaum tsim thiab ua.
④ Cov yam ntxwv thiab qhov zoo: Tsawg load: Muaj feem xyuam rau cov ntaub ntawv softer kom tsis txhob muaj kev cuam tshuam ntau dhau. High repeatability: Muab kev ntsuas ruaj khov thiab zoo ib yam. Kev siv ntau yam: Muaj peev xwm sim ntau yam khoom siv hlau softer.
⑤ Cov lus ceeb toom lossis kev txwv: Kev npaj ua qauv: Cov qauv saum npoo yuav tsum tiaj tus thiab huv si kom ntseeg tau qhov tseeb ntawm qhov ntsuas ntsuas. Cov kev txwv ntawm cov khoom siv: Rau cov ntaub ntawv nyuaj heev, nws yuav tsim nyog xaiv lwm txoj kev sim hardness haum. Kev tu cov cuab yeej siv: Cov cuab yeej yuav tsum tau ntsuas thiab tswj xyuas tsis tu ncua kom paub meej qhov ntsuas qhov tseeb thiab kev ntseeg tau.
Post lub sij hawm: Nov-20-2024
