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 piʻi ʻana 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 o ka honua maʻamau mai 239 miliona US dollars (ma kahi o 318 billion Korean won) i 2020 a i 641 miliona US dollars i 2022, kahi piʻi o 2.7 mau 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