Cov hlau nplaum Samarium cobalt (SmCo) feem ntau yog siv los ua ib qho kev xaiv rau qhov chaw huab cua rau nws qhov kub thiab txias. Tab sis dab tsi yog qhov txwv kub ntawm samarium cobalt? Cov lus nug no yuav dhau los ua qhov tseem ceeb dua vim tias cov ntawv thov huab cua ntau ntxiv. Curie kub ntawm cov ntaub ntawv ferromagnetic feem ntau yog qhov txwv siab tshaj ntawm daim ntawv thov kub. Tshaj qhov ntsuas kub no, cov hlau nplaum hloov los ntawm lub xeev ferromagnetic mus rau lub xeev paramagnetic, thiab tsis muaj cov yam ntxwv zoo sib nqus. Piv txwv li, Curie kub ntawm 2: 17 SmCo yog li 820 ° C, thiab ntawm 1: 5 SmCo yog li 750 ° C. Cov muaj pes tsawg leeg thiab cov qauv ntawm cov hlau nplaum yeej ib txwm sib txawv, Curie kub yog txawv me ntsis, tab sis nws yog feem ntau nyob rau hauv no ntau yam. Raws li daim duab 1 qhia.
Daim duab 1. Curie kub ntawm cov khoom siv hlau nplaum sib txawv
Txawm li cas los xij, hauv daim ntawv thov tiag tiag, SmCo hlau nplaum yog qhov ua rau tsis tuaj yeem sib nqus poob thaum qhov kub thiab txias qis dua Curie kub. Qhov siab tshaj plaws kub (Tmax) ntawm SmCo yog txwv los ntawm qhov kub thiab txias coefficient ntawm coercivity thiab qhov chaw ua hauj lwm los ntawm qhov sib txawv ntawm cov hlau nplaum. Yog hais tias BH nkhaus nyob rau hauv lub thib ob quadrant yog siv raws li ib tug ncaj kab raws li tus qauv txiav txim (Chen, JAP, 2000), lub Tmax ntawm feem ntau siv SmCo hlau nplaum tsis tshaj 350 ° C. Raws li pom hauv daim duab 2, cov khoom sib nqus zoo heev ntawm 32H hlau nplaum ntawm 20 ° C yog Br≥11.3kGs, Hcj≥28kOe, Hk≥21kOe, thiab BHmax≥30.5kOe. Txawm li cas los xij, qhov kub coefficient β (20-350 ° C) ntawm nws qhov kev sib koom ua ke Hcj yog 0.042%, thiab nws txoj kab nkhaus BH tseem nyuaj rau tswj kom muaj txoj kab ncaj nraim hauv qhov thib ob quadrant ntawm 350 ° C.
Daim duab 2, qhov kub nkhaus ntawm 32H.
Hangzhou Magnet Fais Fab Co.Ltd tau tsim cov khoom kub resistant SmCo hlau nplaum (T series) ntawm 350 ° C txog 550 ° C. Raws li pom hauv daim duab 3, cov hlau nplaum no yog los ntawm T350 nrog Tmax ntawm 350 ° C rau T550 nrog Tmax ntawm 550 ° C. Rau kev ua haujlwm tshwj xeeb, thov xa mus rau lub vev xaib txuashttps://www.magnetpower-tech.com/t-series-sm2co17-smco-magnet-supplier-product/.Cov khoom siv no yog tsim rau kev siv kub xws li kev lag luam chemical, turbine thiab lwm yam.
Daim duab 3 Qib thiab nkhaus ntawm qhov kub thiab txias SmCo.
Post lub sij hawm: Apr-23-2023
