Ma ke ola o kēlā me kēia lā, manaʻo ka nui o ka poʻe ʻaʻole magnetic a hoʻohana i ka magnet e ʻike ai.Akā naʻe, ʻaʻole kūpono kēia ʻano hana i ka ʻepekema.ʻO ka mea mua, hiki i nā ʻāpana zinc a me nā ʻāpana keleawe ke hoʻohālike i ke ʻano a me ka nele i ka magnetism, e alakaʻi ana i ka manaʻo kuhihewa he kila kila.ʻO ka mea maʻamau maʻamau i hoʻohana ʻia i ke kila kila, 304, hiki ke hōʻike i nā pae like ʻole o ka magnetism ma hope o ka hana anu.No laila, ʻo ka hilinaʻi wale ʻana i kahi magnet e hoʻoholo ai i ka ʻoiaʻiʻo o ke kila kila ʻaʻole hilinaʻi.
No laila, he aha ke kumu o ka magnetism i ke kila kila?
Wahi a ke aʻo ʻana o ka ʻepekema waiwai, loaʻa ka magnetism o nā metala mai ka hoʻolālā electron spin.ʻO ka electron spin kahi waiwai mechanical quantum i hiki ke "up" a i ʻole "lalo."I loko o nā mea ferromagnetic, hoʻonohonoho pono nā electrons i ka ʻaoʻao hoʻokahi, ʻoiai i nā mea antiferromagnetic, hahai kekahi mau electrons i nā maʻamau maʻamau, a ʻo nā electrons e pili ana he kūʻē a antiparallel spins.Eia naʻe, no nā electrons i loko o nā lattice triangular, pono lākou a pau e wili i ka ʻaoʻao hoʻokahi i loko o kēlā me kēia huinakolu, e alakaʻi ana i ka nele o kahi ʻano milo upena.
ʻO ka mea maʻamau, ʻo ke kila kuhili ʻole austenitic (hōʻike ʻia e 304) ʻaʻole ia he magnetic akā hiki ke hōʻike i ka magnetism nāwaliwali.ʻO Ferritic (ʻo 430, 409L, 439, a me 445NF, a me nā mea ʻē aʻe) a me martensitic (hōʻike ʻia e 410) he mau mea maʻamau.Ke hoʻokaʻawale ʻia nā māka kila kila e like me 304 ma ke ʻano he non-magnetic, ʻo ia hoʻi, hāʻule ko lākou mau waiwai ma lalo o kahi paepae;akā naʻe, ʻo ka hapa nui o nā māka kila kila e hōʻike ana i kekahi degere o ka magnetism.Eia hou, e like me ka mea i ʻōlelo ʻia ma mua, ʻaʻole magnetic a nāwaliwali paha ka austenite, aʻo ka ferrite a me ka martensite he magnetic.ʻO ka hoʻomaʻamaʻa wela kūpono ʻole a i ʻole ka hoʻokaʻawale ʻana i ka wā o ka hoʻoheheʻe ʻana hiki ke hopena i ke alo o nā mea liʻiliʻi o ka martensitic a i ʻole nā hale ferritic i loko o 304 stainless steel, e alakaʻi ana i ka magnetism nāwaliwali.
Eia kekahi, hiki ke hoʻololi ke ʻano o 304 stainless steel i martensite ma hope o ka hana anu, a ʻoi aku ka nui o ka deformation, ʻoi aku ka nui o nā ʻano martensite, e hopena i ka magnetism ikaika.No ka hoʻopau loa ʻana i ka magnetism i ka 304 stainless steel, hiki ke hana ʻia ka mālama ʻana i ka hoʻonā wela kiʻekiʻe e hoʻihoʻi i kahi ʻano austenite paʻa.
I ka hōʻuluʻulu ʻana, hoʻoholo ʻia ka magnetism o kahi mea e ka maʻamau o ka hoʻonohonoho molekala a me ke kau ʻana o nā milo electron.Manaʻo ʻia he waiwai kino o ka mea.ʻO ka pale ʻana o ka corrosion o kahi mea, ma ka ʻaoʻao ʻē aʻe, ua hoʻoholo ʻia e kona haku melemele a kūʻokoʻa i kona magnetism.
Manaʻo mākou ua kōkua kēia wehewehe pōkole.Inā he mau nīnau ʻē aʻe kāu e pili ana i ke kila kila, e ʻoluʻolu e nīnau i ka lawelawe mea kūʻai aku a EST Chemical a waiho i kahi leka, a hauʻoli mākou e kōkua iā ʻoe.
Ka manawa hoʻouna: Nov-15-2023