Ubulukhuni bukaVickers buyindlela esemgangathweni yokubonakalisa ubulukhuni bezinto ezicetywayo nguRobert L. Smith waseBritane noGeorge E. Sandland ngo-1921 eVickers Ltd. Le yenye indlela yokuvavanya ubulukhuni elandela iindlela zokuvavanya ubulukhuni bukaRockwell kunye noBrinell.
1 Umgaqo wovavanyo lobunzima beVickers:
Isivavanyeli sobulukhuni beVickers sisebenzisa umthwalo we-49.03 ~ 980.7N ukucinezela i-intruder yedayimani enesikwere esine-engile ye-136° kumphezulu wezinto. Emva kokuyigcina ixesha elithile, linganisa i-indentation nge-diagonal. Ubude bomgca, uze ubale ixabiso lobunzima beVickers ngokwefomula.
2. Uluhlu lwesicelo sokulayisha:
01: Isivavanyeli sobulukhuni beVickers esinomthwalo we-49.03 ~ 980.7N sifanelekile ekulinganiseni ubulukhuni bezinto zokusebenza ezinkulu kunye neengqimba zomphezulu onzulu;
02: Ubunzima beVickers yomthwalo omncinci, umthwalo wovavanyo <1.949.03N, ifanelekile ekulinganisweni kobunzima bezinto zokusebenza ezibhityileyo, iindawo zezixhobo okanye iingubo;
03: Ubulukhuni beMicro-Vickers, umthwalo wovavanyo <1.961N, ifanelekile ekulinganisweni kobulukhuni befoyile yesinyithi kunye neengqimba zomphezulu ezibhityileyo kakhulu.
Ukongeza, ixhotyiswe nge-Knoop indenter, inokulinganisa ubulukhuni beKnoop bezinto ezibuthathaka neziqinileyo ezifana neglasi, iiseramikhi, i-agate, kunye namatye anqabileyo okwenziwa.
3 Iingenelo zovavanyo lobunzima beVickers:
1) Uluhlu lokulinganisa lubanzi, ukusuka kwiintsimbi ezithambileyo ukuya kubavavanyi bobunzima obukhulu ukuya kwiintsimbi ezinzima kakhulu, kwaye uluhlu lokulinganisa luqala kwiixabiso zobunzima beVickers ezimbalwa ukuya kumawaka amathathu.
2) Ukutsalwa kuncinci kwaye akulimazi umsebenzi. Kungasetyenziselwa ukuvavanya ubulukhuni bezinto zokusebenza ezinomphezulu ongenakonakala.
3) Ngenxa yamandla ayo okuvavanya amancinci, amandla okuvavanya amancinci anokufikelela kwi-10g, ukuze ikwazi ukubona ezinye izinto ezincinci nezincinci.
4 Izinto ezingalunganga nge-Vickers hardness tester: Xa kuthelekiswa neendlela zokuvavanya ubulukhuni beBrinell kunye neRockwell, i-Vickers hardness test ineemfuno zokuguda komphezulu we-workpiece, kwaye ezinye izinto zokusebenza kufuneka zikhazimliswe, nto leyo ethatha ixesha kwaye ifuna umsebenzi omninzi; ukugcinwa I-hardness tester ichanekile kwaye ayifanelekanga ukusetyenziswa kwiindawo zokusebenzela okanye kwindawo. Isetyenziswa kakhulu kwiilabhoratri.
Uthotho lwe-Vickers hardness tester olu-5
1) Isivavanyeli sobunzima beVickers esingabizi kakhulu
2) Isibonisi sedijithali sokuchukumisa isikrini seVickers
3) Isivavanyeli sokuqina kweVickers esizenzekelayo ngokupheleleyo
Ixesha lokuthumela: Disemba-15-2023
