Intee bay le'eg tahay xoogga jiidashada magnet-ku?Dadka qaarkiis waxay u maleynayaan in magnet-ka NdFeB ay ku jiidi karaan walxo leh 600 oo jeer miisaankiisa.Tani ma dhab baa?Ma jiraa qaacido xisaabeed oo loogu talagalay nuugista magnetka?Maanta, aan ka hadalno "xoogga jiidashada" ee magnets.
Codsiga magnets-ka, qulqulka magnetic ama cufnaanta magnetic magnetic waa mid aad muhiim u ah si loo cabbiro waxqabadka (gaar ahaan matoorada).Si kastaba ha noqotee, meelaha qaar ee codsiyada, sida kala-soocidda magnetic iyo kalluumeysiga magnetic, qulqulka magnetic maaha cabbir wax ku ool ah oo kala-soocidda ama saamaynta nuugista, iyo xoogga jiidista magnetic waa tilmaame waxtar badan leh.
Awooda jiidista ee magnetka waxa loola jeedaa miisaanka walxaha ferromagnetic ee ay soo jiidan karto magnetka.Waxaa si wadajir ah u saameeya waxqabadka, qaabka, cabbirka iyo masaafada soo jiidashada ee magnetka.Ma jirto qaacido xisaabeed si loo xisaabiyo soo jiidashada magnetka, laakiin waxaan ku cabbiri karnaa qiimaha soo jiidashada magnetka iyada oo loo marayo qalabka cabbiraadda soo jiidashada magnetka (guud ahaan cabbir xiisadda magnetka oo u beddel miisaanka), sida ku cad shaxanka soo socda.Xoogga jiidashada magnet-ka ayaa si tartiib tartiib ah u yaraan doona kororka masaafada shayga soo jiidashada.
Haddii aad Google ka raadiso xisaabinta xoogga magnetic, shabakado badan ayaa qori doona "sida laga soo xigtay waayo-aragnimada, xoogga magnetka ee NdFeB magnet wuxuu ku saabsan yahay 600 jeer miisaankiisa (640 jeer ayaa sidoo kale la qoray)".Haddii waayo-aragnimadani ay sax tahay iyo in kale, waxaan ku ogaan doonnaa tijaabooyin.
Sintered NdFeB n42 magnets oo leh qaabab iyo cabbirro kala duwan ayaa lagu doortay tijaabada.Dahaarka dusha sare wuxuu ahaa NiCuNi, kaas oo magnetized iyada oo loo marayo jihada dhererka.Xoogga ugu badnaan (N tiirka N) ee magnet kasta waa la cabbiray waxaana loo beddelay miisaanka soo jiidashada.Natiijooyinka cabbirku waa sida soo socota:
Ma adka in laga helo natiijooyinka cabbiraadda:
- Saamiga culeyska magnet-ka ee qaababka iyo cabbirrada kala duwan ay soo jiidan karaan miisaankooda aad ayey u kala duwan yihiin.Qaar waxay ka yar yihiin 200 jeer, qaar waxay ka badan yihiin 500 jeer, qaarna waxay gaari karaan in ka badan 3000 jeer.Sidaa darteed, 600 jeer ee lagu qoray internetka ma aha mid sax ah
- Silinder ama disc Magnet leh dhexroor isku mid ah, dhererka sare, ayaa weynaanta culeyska uu soo jiidan karo, xoog magnetic asal ahaan waa u dhigma dhererka
- Silinder ama Disc Magnet ee dhererkoodu isku mid yahay (unugga buluuga ah), dhexroorku wuu weynaadaa, way sii weynaataa culeyska uu soo jiidan karo, xoogga birlabkuna wuxuu asal ahaan la siman yahay dhexroorka.
- Dhexroorka iyo dhererka Silinder ama Disc Magnet (unugga jaalaha ah) ee isku mugga iyo miisaanka leh waa kala duwan yihiin, miisaanka lagu soo jiidan karaana aad buu u kala duwan yahay.Guud ahaan, inta ay sii dheeraato jihada jihada ee magnetka, ayaa sii weynaan doonta nuugista
- Magnet-yada leh mugga isku mid ah, xoogga birlabku qasab maaha in loo siman yahay.Marka loo eego qaabab kala duwan, xoogga birlabku aad ayuu u kala duwanaan karaa.Taa beddelkeeda, si la mid ah, birlabyada soo jiidanaya isla miisaanka walxaha ferromagnetic waxay yeelan karaan qaabab, mug iyo miisaan kala duwan.
- Nooc kasta oo qaabab ah, dhererka jihada hanuuninta ayaa ka ciyaara doorka ugu weyn ee go'aaminta xoogga magnetic.
Kuwa kore waa tijaabada xoogga jiida ee magnet-ka isla darajada.Sidee ku saabsan xoogga jiidaya farqiga u dhexeeya magnets ee darajo kala duwan?Waanu tijaabin doonaa oo is barbardhigi doonaa hadhow.
Waqtiga boostada: Meey-11-2022