Nūhou

Waiwai: Hana ʻia me ka pauka alumini oxide e ka hoʻoheheʻe ʻana i ka wela wela i loko o ka umu ahi arc. Nā hiʻohiʻona: ʻOi aku ka kiʻekiʻe o ka ʻike Al203 ma mua o 98%, me ka ʻoi aku ka paʻakikī ma mua o ka corundum brown a me ka paʻakikī haʻahaʻa ma mua o ka brown...

Ka hana o ka pauka corundum keʻokeʻo: Keʻokeʻo, ʻoi aku ka paʻakikī a ʻoi aku ka palupalu ma mua o ka corundum ʻeleʻele, me ka ikaika ʻoki ikaika, ke kūpaʻa kemika maikaʻi a me ka hoʻohaʻahaʻa maikaʻi. Ka laulā kūpono: Hiki ke hoʻohana ʻia no nā abrasive paʻa a uhi ʻia, mākou ...

ʻO nā mea abrasive nā mea ʻoi a paʻakikī i hoʻohana ʻia e wili i nā ʻili palupalu. Loaʻa i nā Abrasives nā mea abrasives maoli a me nā abrasives artificial ʻelua ʻano. E like me ka paʻakikī o ka hoʻohālikelike ʻana o ka superhard abrasive a me ka abrasive maʻamau ʻelua ...

Hoʻohana nui ʻia ka corundum ʻeleʻele i ka ʻoihana hoʻomaʻamaʻa ʻana i ka ʻili, hiki ke hana i nā ʻano ʻano o ka mālama ʻana i ka ʻili i ʻoi aku ka maʻalahi, hiki ke hoʻokaʻawale ʻia i loko o nā ʻāpana aʻe: 1, ka hoʻoili ʻana o ka ʻili: ka ʻāpana metala, carb...

ʻO ka corundum ʻeleʻele, i ʻike ʻia he haʻahaʻa alumina corundum, aia i loko o ka umu ahi, ka hoʻoheheʻe ʻana o ka bauxite a hana ʻia i kahi ʻano α-Al2O3 a me ka hao spinel e like me ke ʻano mineral nui o ka aniani ʻeleʻele hina, kahi i hōʻike ʻia e ka haʻahaʻa haʻahaʻa Al2O3 ...

I ka makahiki 1877, ua hoʻohana ʻo Fremi, he loea Farani, i ka pauka alumina maʻemaʻe, potassium carbonate, barium fluoride a me kahi liʻiliʻi o ka potassium bichromate i mea maka. Ma hope o 8 mau lā o ka hoʻoheheʻe ʻana o ka wela kiʻekiʻe i loko o kahi kīʻaha, ua loaʻa nā kristal ruby ​​liʻiliʻi ...

Chrome corundum: ʻO ka hoʻohui ʻana i ka mineral nui ʻo α-Al2O3-Cr2O3 solution solid. ʻO ka hui ʻana o ka mineral lua he mea liʻiliʻi o ka spinel compound (a i ʻole spinel compound), a ʻo ka ʻike o ka chromium oxide he 1% ~ 30%. ʻElua mau k...

1. Pono e hoʻokomo ʻia ka mīkini hana one ma luna o ke kahua paʻa paʻa, e hōʻoiaʻiʻo ʻaʻole haʻalulu ʻē aʻe a kaʻawale i ka pōʻino i hoʻokumu ʻia e nā wahi pulu a me ka ʻino. 2. E hoʻohui i ka momona lubricating kūpono i nā ʻāpana ...

Ma ke ʻano he huaʻōlelo maʻamau no ka fiber maoli e like me ka mineral siliceous, ʻo ka huluhulu asbestos kahi ʻano silicate mineral fiber i hoʻohana nui ʻia i nā mea kūkulu hale a me nā papa ahi. He fiber mineral maoli nō ia. Loaʻa iā ia ka ikaika tensile maikaʻi, maikaʻi ...

1. E like me nā mea like ʻole, hiki ke hoʻokaʻawale ʻia nā abrasives i nā mea hao a me nā mea ʻole. Nonmetallic abrasives maʻamau e komo i ke one keleawe keleawe, one quartz, one kahawai, emery, brown fused alumina, keʻokeʻo fused alumina g...