Uvavanyo loBulukhuni beLeeb
Okwangoku, iLeeb hardness tester isetyenziswa kakhulu kuvavanyo lobunzima be-castings. ILeeb hardness tester isebenzisa umgaqo wovavanyo lobunzima obuguqukayo kwaye isebenzisa ubuchwepheshe bekhompyutha ukwenza i-miniaturization kunye ne-electronicization ye-hardness tester. Kulula kwaye kulula ukuyisebenzisa, ukufundwa kwayo kuyaqondakala ngakumbi, kwaye iziphumo zovavanyo zinokuguqulwa ngokulula zibe ngamaxabiso obunzima beBrinell, ngoko ke yamkelekile ngokubanzi.
Ii-castings ezininzi zizinto zokusebenza eziphakathi ukuya kwezinkulu, ezinye zazo zinobunzima beetoni ezininzi, kwaye azinakuvavanywa kwi-bench-top hard tester. Uvavanyo lobunzima oluchanekileyo lwee-castings lusebenzisa ikakhulu iintonga zovavanyo ezidityanisiweyo ngokwahlukeneyo okanye iibhloko zovavanyo eziqhotyoshelwe kwii-castings. Nangona kunjalo, i-test bar okanye i-test block ayinakuyitshintsha ngokupheleleyo i-workpiece ngokwayo. Nokuba yi-furnace efanayo yentsimbi enyibilikisiweyo, inkqubo yokuphosa kunye neemeko zonyango lobushushu ziyafana. Ngenxa yomahluko omkhulu ngobukhulu, izinga lokufudumeza, ingakumbi izinga lokuphola, liya kwahluka. Kunzima ukwenza ezi zimbini zibe nobunzima obufanayo. Ngenxa yesi sizathu, abathengi abaninzi bakhathalela ngakumbi kwaye bakholelwa kubunzima be-workpiece ngokwayo. Oku kufuna i-portable precision hardness tester ukuvavanya ubunzima be-castings. I-Leeb hardness tester iyisombulula le ngxaki, kodwa kuyimfuneko ukunaka ukugqitywa komphezulu we-workpiece ngexesha lokusetyenziswa kwe-Leeb hardness tester. I-Leeb hardness tester ineemfuno zoburhabaxa bomphezulu we-workpiece.
Uvavanyo loBulukhuni beBrinell
Uvavanyo lokuqina kweBrinell kufuneka lusetyenziswe kuvavanyo lokuqina kwe-castings. Kwi-castings yentsimbi engwevu eneenkozo ezirhabaxa, iimeko zovavanyo zamandla angama-3000kg kunye nebhola eyi-10mm kufuneka zisetyenziswe kangangoko kunokwenzeka. Xa ubungakanani be-castings buncinci, uvavanyo lokuqina kweRockwell nalo lungasetyenziswa.
Iintsimbi ezibunjiweyo zihlala zinesakhiwo esingalinganiyo, iinkozo ezinkulu, kwaye ziqulathe ikhabhoni, i-silicon kunye nezinye izinto ezingcolileyo kunentsimbi, kwaye ubunzima buya kwahluka kwiindawo ezincinci ezahlukeneyo okanye kwiindawo ezahlukeneyo. I-indenter ye-Brinell hardness tester inobukhulu obukhulu kunye nendawo enkulu yokubotshwa, kwaye inokulinganisa ixabiso eliqhelekileyo lobunzima bezinto ngaphakathi koluhlu oluthile. Ke ngoko, i-Brinell hardness tester inovavanyo oluchanekileyo oluphezulu kunye nokusasazeka okuncinci kwamaxabiso obunzima. Ixabiso lobunzima obulinganisiweyo limele ngakumbi ubunzima bokwenyani bento yokusebenza. Ke ngoko, i-Brinell hardness tester isetyenziswa kakhulu kushishino lwe-foundry.
Ubunzima beRockwell
Izixhobo zokuvavanya ubulukhuni zeRockwell zikwasetyenziswa rhoqo kuvavanyo lobulukhuni besinyithi esityhidiweyo. Kwizinto zokusebenza ezineengqolowa ezincinci, ukuba akukho ndawo yaneleyo yovavanyo lobulukhuni beBrinell, uvavanyo lobulukhuni beRockwell lunokwenziwa. Kwisinyithi esityhidiweyo esithambileyo, isinyithi esityhidiweyo esibandayo kunye nesinyithi esityhidiweyo, isikali seHRB okanye seHRC singasetyenziswa. Ukuba izinto azilingani ngokulinganayo, kufuneka kulinganiswe ukufundwa okuliqela kwaye ixabiso eliphakathi lithathwe.
Isivavanyeli soBulukhuni boLwandle
Kwiimeko ezithile, kwezinye izinto ezibunjiweyo ezineemilo ezinkulu, akuvumelekanga ukusika isampuli, kwaye akuvumelekanga ukufaka iibhloko zovavanyo ezongezelelweyo zokuvavanya ubulukhuni. Ngeli xesha, uvavanyo lobulukhuni luya kudibana nobunzima. Kule meko, indlela eqhelekileyo kukuvavanya ubulukhuni ngesixhobo sokuvavanya ubulukhuni seShore esiphathwayo kumphezulu ogudileyo emva kokuba sigqityiwe. Umzekelo, kwimigangatho yeroli esetyenziswa kakhulu kushishino lwesinyithi, kuchazwe ukuba isixhobo sokuvavanya ubulukhuni seShore kufuneka sisetyenziswe ukuvavanya ubulukhuni.
Ixesha lokuthumela: Disemba-29-2022
