he aha nā kīʻaha i hoʻohana ʻia

I loko o nā noi ʻoihana wela kiʻekiʻe, he kuleana koʻikoʻi nā crucibles e like me nā ipu kī no ka paʻa ʻana a me ka hoʻomehana ʻana i nā mea.ʻO nā kīʻaha silika carbide, me kā lākou hana maikaʻi loa, ke lilo mālie nei i mea koho i makemake ʻia ma nā ʻoihana like ʻole.
1、 He aha ka silicon carbide ceramic crucible
ʻO ka pahu silika carbide ceramic kahi ipu hohonu hohonu i hana ʻia me ka silicon carbide ceramic material. ʻO ka Silicon carbide kahi hui me nā mea paʻa covalent ikaika, a ʻo kāna hoʻopaʻa ʻana kemika kū hoʻokahi e hāʻawi i nā crucibles me nā waiwai maikaʻi loa. Ke hoʻohālikelike ʻia me nā kīʻaha aniani maʻamau, hiki i nā kīʻaha silicon carbide ceramic ke kū i nā mahana kiʻekiʻe a he mau mea hana kūpono no nā hana hoʻomehana wela.
2、 ʻO nā pono o ka Silicon Carbide Ceramic Crucibles
1. ʻOi aku ka maikaʻi kiʻekiʻe kiʻekiʻe wela kū'ē: Silicon carbide ceramic crucibles hiki ke pale i ka wela a hiki i ka 1350 ℃. E emi nui ana ka ikaika o nā mea seramika maʻamau i 1200 ℃, ʻoiai hiki ke mālama ʻia ka ikaika kulou o ka silicon carbide ma kahi kiʻekiʻe ma 1350 ℃. ʻO kēia hiʻohiʻona e hana maikaʻi i ka hoʻoheheʻe wela kiʻekiʻe, ke puhi ahi a me nā kaʻina hana ʻē aʻe, e hāʻawi ana i kahi ʻano wela kiʻekiʻe paʻa no nā mea a me ka hōʻoia ʻana i ka holomua o ka hana.
2. Ke kū'ē kū'ē maikaʻi: Hiki i nā kīʻaha seramika Silicon carbide ke mālama i ke kūpaʻa maikaʻi o ka oxidation ma nā wahi wela kiʻekiʻe. Me ka hoʻonui ʻana o ka ʻike silika carbide, ua hoʻomaikaʻi hou ʻia ka pale ʻana o ka oxidation o ka crucible. ʻO ia ke ʻano ʻaʻole maʻalahi ka oxidized a me ka pōʻino i ka wā lōʻihi o ka hoʻohana ʻana i ka wela kiʻekiʻe, e hoʻonui nui i kona ola lawelawe, e hōʻemi ana i ke alapine o ka hoʻololi crucible, a me ka hoʻohaʻahaʻa ʻana i nā kumukūʻai hana.
3. Paʻa kemika maikaʻi loa: ʻOi aku ka paʻa ʻana o nā ceramics silikoni i nā hopena corrosive. I nā ʻoihana e pili ana i nā mea kemika like ʻole e like me ka metallurgy a me ka ʻenekinia kemika, ʻaʻole ia e pane me nā mea kemika i hoʻopili ʻia, no laila e hōʻoiaʻiʻo ai i ka maʻemaʻe o nā mea i hoʻoheheʻe ʻia a i ʻole nā ​​​​mea i hoʻoheheʻe ʻia, pale i ka hoʻokomo ʻana i nā mea haumia, a me ka hoʻomaikaʻi ʻana i ka maikaʻi o ka huahana.
4. ʻO ka paʻakikī kiʻekiʻe a me ke kūpaʻa ʻaʻahu: He paʻakikī kiʻekiʻe ka Silicon carbide, kahi e hana ai i ka crucible i hana ʻia me ke kūpaʻa ʻaʻahu maikaʻi a hiki ke pale i ka ʻaʻahu kino i nā wela kiʻekiʻe. I ka wā lōʻihi o ka hoʻohana ʻana, hiki iā ia ke mālama i ka kūpaʻa o kona ʻano a ʻaʻole maʻalahi a maʻalahi ʻole, e hōʻoia hou i kona pono a me ke ola lawelawe.

3、 Noi na kahua o ka silika carbide ceramic crucibles
1. ʻOihana Metallurgical: Inā ʻo ia ka hoʻomaʻemaʻe ʻana i nā metala ferrous e like me ke kila, a i ʻole ka hoʻoheheʻe ʻana o nā metala non-ferrous a me kā lākou mau ala e like me ke keleawe, aluminika, zinc, etc., silicon carbide ceramic crucibles pāʻani nui. Hiki iā ia ke pale i ka erosion o ka wai metala wela kiʻekiʻe, e hōʻoia ana i ka holomua o ka hoʻoheheʻe metala, ʻoiai e hōʻoiaʻiʻo ana i ka maʻemaʻe o ka metala a me ka hoʻomaikaʻi ʻana i ka maikaʻi o nā huahana metala.
2. ʻOihana Kemika: hoʻohana ʻia no nā hopena kemika kiʻekiʻe a me ka mālama ʻana i nā media corrosive. Ma muli o kona kūpaʻa kemika maikaʻi loa a me ke kūpaʻa wela kiʻekiʻe, hiki iā ia ke hana paʻa i mua o nā mea kemika like ʻole a me nā wahi hoʻonaninani kiʻekiʻe, e hōʻoia ana i ka holomua ʻana o nā hopena kemika ʻoiai e pale ana i ka crucible ponoʻī mai ka ʻino a me ka pōʻino.
3. Kiln ʻoihana: hoʻohana ʻia ma ke ʻano he pahu hoʻomehana no ke puhi ʻana i nā mea ʻenehana like ʻole, e like me nā pōhaku ahi. Ma ka hoʻohana ʻana i kāna conductivity thermal maikaʻi a me ke kūpaʻa wela kiʻekiʻe, hiki iā ia ke hoʻololi koke i ka wela, hōʻoia i ka maikaʻi o ke kī ʻana i nā mea, a hoʻomaikaʻi i ka hoʻohana ʻana i ka ikehu.
Silicon carbide ceramic crucibles, me ka nui o ka pono e like me ke kiʻekiʻe wela kū'ē, oxidation kū'ē kū'ē, aahu, a me ka kemikala paʻa, ua hōʻike nui noi waiwai i loko o nāʻoihana he nui a me ka maikai ipu i loko o ka wela wela kahua. Me ka holomua o ka ʻenehana, manaʻo mākou e hoʻohana ʻia nā silicon carbide ceramic crucibles ma nā kula hou aʻe a hāʻawi i ke kākoʻo ikaika no ka hoʻomohala ʻana i nā ʻoihana like ʻole.