Dhipatimendi reCommerce reUS rakazivisa munaGunyana 24 kuti rakanga ratanga "kuferefeta mazana maviri nemakumi matatu" pamusoro pekuti kunze kwenyika kweNeodymium-iron-boron magineti asingagumi (Neodymium-iron-boron anogara magineti) anokuvadza kuchengetedzwa kwenyika kweUnited States.Iyi ndiyo yekutanga "232 kuferefeta" kwakatangwa neBiden manejimendi kubva kutora chigaro.Dhipatimendi reCommerce reUS rakataura kuti NdFeB zvechigarire magineti zvinhu zvinoshandiswa mukukosha kwenyika kuchengetedza masisitimu akadai sejeti dzehondo uye missile kutungamira masisitimu, makiyiri emagetsi senge mota dzemagetsi nemhepo turbines, pamwe nemacomputer hard drive, maodhiyo ekushandisa, magineti resonance zvishandiso. nemimwe minda.

Muna Kukadzi wegore rino, Mutungamiriri weUS, Biden akaraira masangano emubatanidzwa kuti aite ongororo yemazuva zana ekugovera kwezvigadzirwa zvina zvakakosha: semiconductors, zvicherwa zvepasi, mabhatiri makuru emotokari dzemagetsi, nemishonga.Muongororo yemazuva zana yakaunzwa kuBiden musi wa8 Chikumi, zvinokurudzirwa kuti Dhipatimendi reCommerce reUS riongorore kana richiferefeta neodymium magineti zvinoenderana neChinyorwa 232 cheTrade Expansion Act ya1962. Chirevo chakaratidza kuti neodymium magineti anotamba. basa rakakosha mumamota uye zvimwe midziyo, uye yakakosha kune dziviriro yenyika uye maindasitiri ehurumende.Nekudaro, United States inotsamira zvakanyanya kune kunze kwenyika kune ichi chigadzirwa chakakosha.

Hukama huri pakati peneodymium iron boron magineti nemamotor

Neodymium iron boron magineti anoshandiswa mune zvechigarire magineti mota.Akajairika magineti motors ndeaya: magineti echigarire DC mota, magineti echigarire AC mota, uye anogara magineti DC mota dzakakamurwa kuita brashi DC mota, brushless mota, uye anotsika mota.Anogara magineti AC mota akakamurwa kuita synchronous anogara magineti mota, anogara magineti servo mota, nezvimwe, zvinoenderana nekufamba modhi inogona zvakare kukamurwa kuita inogara magineti mutsara mota uye isingaperi magineti inotenderera mota.

Zvakanakira neodymium iron boron magineti

Nekuda kweakanakisa magineti zvivakwa zve neodymium magineti zvinhu, zvisingaperi magineti minda inogona kugadzwa pasina rimwe simba mushure memagnetization.Iko kushandiswa kweasingawanzo pasi pechigarire magineti mota panzvimbo pechinyakare mota yemagetsi minda haina kungokwira mukubudirira, asiwo yakapusa muchimiro, yakavimbika mukushanda, diki muhukuru uye huremu huremu.Iyo haigone kungowana kuita kwepamusoro (senge yekupedzisira-yakanyanya kushanda, yekupedzisira-yakanyanya kumhanya, yekupedzisira-yakakwira yekupindura kumhanya) iyo yechinyakare magetsi ekusimudzira mota haigone kuenderana, asi zvakare inogona kusangana nezvinodiwa zvekushanda kweakakosha motors senge elevator traction. mota uye mota mota.Iko kusanganiswa kweasingawanzo pasi echigarire magineti mota ane simba remagetsi tekinoroji uye microcomputer control tekinoroji inovandudza mashandiro echigarire magineti rotor uye transmission system kune imwe nhanho.Naizvozvo, kuvandudza mashandiro uye nhanho yekutsigira tekinoroji dhizaini yakakosha kutungamira kune indasitiri yemotokari kugadzirisa chimiro cheindasitiri.

China inyika ine hukuru hukuru hwekugadzira neodymium magineti.Zvinoenderana nedata, iyo yakazara yepasi rose kugadzirwa kweneodymium magineti muna 2019 ingangoita 170,000 matani, ayo kugadzirwa kweChina neodymium iron boron kunosvika zviuru zana nemakumi mashanu ematani, achiverengera 90%.

China ndiyo inogadzira pasi rose uye inotengesera kunze kwenyika isingawanzo wanikwa.Chero mimwe mitero yakatemerwa neUnited States inofanirawo kutengwa kunze kwenyika neChina.Naizvozvo, iyo US 232 ongororo haizove nemhedzisiro paindasitiri yemagetsi emagetsi eChina.

Zvakataurwa naJessica