Wahi a BusinessKorea, ua hoʻomaka ʻo Hyundai Motor Group i ka hoʻomohala ʻana i nā kaʻa kaʻa uila ʻaʻole hilinaʻi nui i ka Kina "nā mea ʻeleʻele rare“.
Wahi a ka poʻe i loko o ka ʻoihana ma ʻAukake 13th, ke hoʻomohala nei ʻo Hyundai Motor Group i kahi kaʻa propulsion e hoʻohana ʻole i nā mea like ʻole o ka honua.neodymium, dysprosium, ahoʻopaʻapaʻama kāna Nanyang Research Center ma Huacheng, Gyeonggi do.Ua ʻōlelo kekahi mea hoʻomohala ʻoihana, "Ke kūkulu nei ʻo Hyundai Motor Group i kahi 'wound rotor synchronous motor (WRSM)' e pale loa i ka hoʻohana ʻana i nā magnet mau loa.nā mea ʻeleʻele rare
ʻO Neodymium kahi mea me ka magnetism ikaika.Ke hui pū ʻia me ka nui o ka dysprosium a me ka terbium, hiki iā ia ke mālama i ka magnetism a i nā mahana a hiki i 200 degere Celsius.I ka ʻoihana kaʻa, hoʻohana nā mea hana kaʻa i kēia mau neodymium i hoʻokumu ʻia i loko o kā lākou mau kaʻa propulsion, i kapa ʻia ʻo "naʻau o nā kaʻa uila".Ma kēia hoʻonohonoho, hoʻokomo ʻia nā magnet paʻa i ka neodymium i loko o ka rotor (ʻo ka ʻāpana ʻōwili o ka motika), aʻo nā coils i hana ʻia me ka wili e hoʻonoho ʻia a puni ka rotor e hoʻokele i ke kaʻa me ka hoʻohana ʻana i kahi hoʻonohonoho "Permanent Magnet Synchronous Motor (PMSM)".
Ma ka ʻaoʻao ʻē aʻe, hoʻohana ʻia ka mīkini hou e Hyundai Motor Group i nā electromagnets ma kahi o nā magnet mau loa i ka rotor.ʻO kēia ka mea i hoʻohana ʻole ʻia i nā mea ʻenehana honua e like me neodymium, dysprosium, a me terbium.
ʻO ke kumu i neʻe ai ʻo Hyundai Motor Group i ka hoʻomohala ʻana i nā kaʻa kaʻa uila ʻaʻole i loaʻa i nā ʻano honua laha ʻole ma muli o ka piʻi nui ʻana o nā mea lawe mai i ka honua laha loa o Kina.ʻO Kina ka 58% o ka neodymium mining o ka honua a me 90% o ka neodymium i hoʻomaʻemaʻe ʻia.Wahi a ka Korea Trade Association, me ka hoʻonui ʻia o ka hana ʻana o nā kaʻa uila e nā kaʻa kaʻa ʻāina ʻo Korea, ua hoʻonui ʻia ka waiwai lawe mai o nā magnet mau loa i haku ʻia me nā mea ʻano honua maʻamau mai 239 miliona mau kālā US (ma kahi o 318 biliona lanakila Korea) i 2020 a 641. miliona kālā ʻAmelika i ka makahiki 2022, kahi hoʻonui ma kahi o 2.7 manawa.Ma kahi o 87.9% o nā mea hoʻokele mau i lawe ʻia mai South Korea mai Kina.
Wahi a ka hōʻike, ke noʻonoʻo nei ke aupuni Kina i ka hoʻohana ʻana i ka "rare earth magnet export ban" ma ke ʻano he countermeasures e kūʻē i nā palena hoʻokuʻu semiconductor US.Inā hoʻokō ʻo Kina i nā palena hoʻokuʻu aku, e pā pololei ia i nā mea hana kaʻa holoʻokoʻa e hoʻoikaika ikaika nei i ka hoʻololi ākea o nā kaʻa uila.
I kēia kūlana, ke ʻimi nei ʻo BMW lāua ʻo Tesla e hoʻomohala i nā kaʻa ʻaʻole i loaʻa nā mea honua.Ua hoʻohana ʻo BMW i ka ʻenehana WRSM i hoʻomohala ʻia e Hyundai Motor Group i ka kaʻa uila BMW i4.Eia nō naʻe, ke hoʻohālikelike ʻia i nā kaʻa e hoʻohana ana i nā mea hoʻokalakupua honua, ʻoi aku ka pōkole o nā motika WRSM i kēia manawa a ʻoi aku ka nui o ka ikehu a i ʻole ke keleawe, e hopena i ka hana haʻahaʻa.Pehea e hoʻoponopono ai ʻo Hyundai Motor Group i kēia pilikia he kumu nui ia i ka loaʻa ʻana o ka ʻenehana kaʻa kaʻa manuahi honua.
Ke hoʻomohala nei ʻo Tesla i kahi kaʻa me ka hoʻohana ʻana i nā magnet permanent ferrite, i hana ʻia e ka hui ʻana i nā mea metala me ka hao hao.Manaʻo ʻia nā magnet permanent ferrite ma ke ʻano he pani no ka neodymium mau magnet mau loa.Eia nō naʻe, nāwaliwali ko lākou magnetism a ʻaʻole kūpono no ka hoʻohana ʻana i nā kaʻa kaʻa uila, kahi i alakaʻi ai i kekahi mau ʻōlelo hoʻohewa i ka ʻoihana.
Ka manawa hoʻouna: ʻAukake-15-2023