Gutezimbere no kubyaza umusaruro ibikoresho bidafite imbaraga za magnetique nibigaragara cyane mubikoresho bishya bikomeye.Amavuta akomeye akorwa mugucumura karbide yicyuma ya IV A, VA, na VI A mumeza yigihe cyibintu (nka tungsten carbide WC), hamwe nicyuma cyinzibacyuho cyitsinda ryicyuma (cobalt Co, nikel Ni, icyuma Fe) nkicyiciro cyo guhuza binyuze munganda zikora inganda.Carbide ya tungsten yavuzwe haruguru ntabwo ari magnetique, mugihe Fe, Co, na Ni byose ni magnetique.Gukoresha Ni nkibihuza nibintu bikenewe kugirango ubyare amavuta adasanzwe.
Hariho uburyo bukurikira bwo kubona WC Ni urukurikirane rutari rukuruzi rukomeye: 1.Igenzura cyane ibirimo karubone
Kimwe na WC Co alloy, ibirimo karubone nicyo kintu cyingenzi kigira ingaruka zikomeye kubisubizo bya W mugice cyo guhuza WC Ni alloy.Nukuvuga ko, munsi ya karubone yibigize icyiciro cya karubone murwego rwo hejuru, niko ubushobozi bukomeye bwo gukemura bwa W mugice cya Ni gihuza, hamwe nibitandukaniro bigera kuri 10-31%.Iyo igisubizo gikomeye cya W mugice cya Ni gihujwe kirenze 17%, ibivanze biba demagnetisme.Intego yubu buryo ni ukubona ibinini bitarimo magnetique bigabanya ibirimo karubone no kongera igisubizo gikomeye cya W mugice cyo guhuza.Mu myitozo, ifu ya WC irimo karubone iri munsi yubumenyi bwa karubone isanzwe ikoreshwa, cyangwa ifu ya W yongewe kumvange kugirango igere ku ntego yo kubyara amavuta make ya karubone.Nubwo bimeze bityo ariko, biragoye cyane kubyara ibinyobwa bidasembuye gusa mugucunga ibirimo karubone.
2. Ongeramo chromium Cr, molybdenum Mo, tantalum Ta
Carbone ndende WC-10% Ni (wt% kuburemere) alloy yerekana ferromagnetism mubushyuhe bwicyumba.Niba hejuru ya 0.5% Cr, Mo, na 1% Ta byongewe muburyo bwicyuma, amavuta menshi ya karubone arashobora kuva muri ferromagnetism akajya kuri magnetism.Mugushyiramo Cr, ibintu bya magnetique ya alloy bigengwa nibirimo karubone, kandi Cr nigisubizo cyumubare munini wigisubizo gikomeye mugice cyo guhuza amavuta, nka W. Umuti hamwe na Mo na Ta ushobora guhinduka gusa a idafite magnetique ivanze kubintu bimwe na bimwe bya karubone.Bitewe numuti muke wa Mo na Ta mugice cyo guhuza, inyinshi murizo zifata gusa karubone muri WC kugirango ikore karbide cyangwa karbide ibisubizo bikomeye.Nkigisubizo, ibivanze bivanze bihindukirira kuruhande rwa karubone nkeya, bigatuma habaho kwiyongera gukomeye kwa W mugice cyo guhuza.Uburyo bwo kongeramo Mo na Ta nukubona amavuta adafite magnetique mugabanya ibirimo karubone.Nubwo bitoroshye kugenzura nko kongeramo Cr, biroroshye cyane kugenzura ibirimo karubone kuruta WC-10% Ni alloy.Urutonde rwibintu bya karubone rwaguwe kuva 5.8-5.95% kugeza kuri 5.8-6.05%.
Imeri:oiltools14@welongpost.com
Twandikire: Grace Ma
Igihe cyo kohereza: Ukwakira-09-2023
