ʻO ka hoʻohana nui ʻana o Silicon Carbide

Hana ʻia ka carbide silika ʻeleʻele mai ke one quartz a me ka petroleum coke silica ma ke ʻano he kumu kumu ma o ka hoʻoheheʻe ʻana i ka wela kiʻekiʻe i loko o kahi umu kūʻē. ʻO kona paʻakikī ma waena o ka corundum a me ke daimana, ʻoi aku ka kiʻekiʻe o kona ikaika mechanical ma mua o ka corundum, a he palupalu a ʻoi. Hana ʻia ʻo Green silicon carbide mai ka petroleum coke a me ka silica ma ke ʻano he kumu nui, me ka paʻakai i hoʻohui ʻia ma ke ʻano he additive, a hoʻoheheʻe ʻia i ka wela kiʻekiʻe i loko o kahi umu kūʻē. Aia kona paʻakikī ma waena o ka corundum a me ke daimana, a ʻoi aku kona ikaika mechanical ma mua o ka corundum.

No laila he aha nā mea hoʻohana nui o ka carbide silika?
1. Abrasives - Ma muli o ka paʻakikī kiʻekiʻe o ka carbide silicon, paʻa kemika a me kekahi ʻano paʻakikī, hiki ke hoʻohana ʻia ka silicon carbide no ka hana ʻana i nā abrasives i hoʻopaʻa ʻia, nā abrasive i uhi ʻia a me ka wili manuahi e hana i ke aniani a me nā seramika. , pōhaku, hao a me kekahi mau metala non-ferrous, carbide, titanium alloy, kiʻekiʻe-wikiwiki oki kila a me ka wili huila, etc.

2. Refractory mea a me ka corrosion-kue mea nui---Mainly no ka silicon carbide he kiʻekiʻe hehee ai wahi (decomposition), kemika inertness a me ka thermal haʻalulu kū'ē, silicon carbide hiki ke hoʻohana 'ia i ka abrasives a me ka ceramic huahana kilns. ʻO nā papa a me nā saggers, nā pōhaku lepo silicon carbide no nā kapuahi hoʻoheheʻe cylinder vertical i ka ʻoihana hoʻoheheʻe zinc, alumini electrolytic cell linings, crucibles, nā mea umu liʻiliʻi a me nā huahana seramika silicon carbide.

3. Hoʻohana kemika-no ka mea hiki ke hoʻoheheʻe ʻia ka silicon carbide i loko o ke kila hoʻoheheʻe ʻia a hana pū me ka oxygen a me nā oxides metala i loko o ke kila hoʻoheheʻe ʻia e hoʻohua i ke kalapona monoxide a me ka slag i loko o ka silikoni. No laila, hiki ke hoʻohana ʻia ma ke ʻano he mea hoʻomaʻemaʻe no ka hoʻoheheʻe ʻana i ke kila, ʻo ia hoʻi, ma ke ʻano he deoxidizer a me ka hoʻolei ʻana i ka hale hoʻomaikaʻi no ka hana kila. Hoʻohana maʻamau kēia i ka carbide silicon maʻemaʻe haʻahaʻa e hōʻemi i nā kumukūʻai. Hiki ke hoʻohana ʻia ma ke ʻano he mea maka no ka hana ʻana i ka silicon tetrachloride.

4. Nā polokalamu uila - hoʻohanaʻia e like me nā mea hoʻomehana, nā mea kū'ēʻole linear a me nā mea semiconductor kiʻekiʻe. ʻO nā mea hoʻomehana e like me nā lāʻau kalapona silika (kūpono no nā umu uila like ʻole e hana ana ma 1100 a 1500 ° C), nā mea pale pale ʻole laina, a me nā ʻāpana pale uila like ʻole.