ʻO ka noi nui o ka carbide silicon reaction-sintered a me nā hiʻohiʻona o nā apo hoʻopaʻa

ʻO Silicon nitride (SiC) he one quartz, calcined petroleum coke (a i ʻole coal coking), lāʻau slag (ʻo ka hana ʻana o ka silicon nitride ʻōmaʻomaʻo e hoʻohui i ka paʻakai) a me nā mea maka ʻē aʻe, ma o ka umu hoʻomehana uila hoʻomau i ka hoʻoheheʻe wela kiʻekiʻe. ʻO ke apo sealing silicon nitride kahi huahana silicon nitride i hana ʻia me nā mea carbide silicon. No laila he aha nā mea nui o ka reaction-sintered silicon carbide a me nā ʻano o nā sila?

ʻO ka hoʻohana koʻikoʻi o ka hopena sintering silicon carbide:

1. ʻO ka hoʻohana ʻana i ka ʻoihana huahana metala ka hoʻohana ʻana i ke kūpaʻa wela silicon nitride, ka ikaika kiʻekiʻe, ka conductivity thermal maikaʻi, ka pale ʻana i ka hopena, ka hoʻomau ʻana i ke kiʻekiʻe kiʻekiʻe indirect hoʻomehana ʻana i nā mea maka, e like me ka pahu pahu fractionation furnace. ʻO ka pā umu ahi hoʻoponopono, ke kelepona electrolytic aluminika, ka uhi ʻana o ke kapuahi hoʻoheheʻe keleawe, ka puʻu pahu zinc pauka, ka paipu pale thermocouple, etc.

2. Hoʻohana ka hoʻohana ʻana i ka ʻoihana kila i ka etching o ka silicon nitride. ʻO ke kūpaʻa haʻalulu wela, kūʻē abrasion. Ma muli o kāna conductivity thermal maikaʻi, hoʻohana ʻia ia no ka hoʻopili ʻana i nā kapuahi hao hao nui a me ka nui e hoʻonui ai i ke ola lawelawe.

3. Hoʻohana ka ʻoihana metallurgical concentrator i ka ikaika silicon nitride ka lua wale nō i ke kila gula, ke kūpaʻa ʻana o ka lole ikaika, ke kūpaʻa ikaika ʻana, ke kūpaʻa ʻana o ka pipeline, centrifugal impeller, ke keʻena paila, mīkini rotary, mining lining mea maikaʻi loa. maikaʻi ke komo ʻana. ʻO ke ola lawelawe o ka plastic he 5 a 20 mau manawa, a ʻo ia kekahi o nā mea waiwai kūpono no nā kahua haʻuki mokulele.

4. ʻO ka hoʻohana ʻana i ka coefficient hoʻoili wela i ka pae hana ʻoihana o nā mea hale hoʻonaninani porcelain a me nā ʻāpana huila one. ʻO nā hiʻohiʻona o ka wela wela a me ke ʻano wela kiʻekiʻe, ʻo ka hana ʻana a me ka hana ʻana i ka kiln metala ʻaʻole hiki ke hoʻemi wale i ka nui o ka kiln, akā hoʻomaikaʻi pū i ka nui o ka mālama ʻana a me ka maikaʻi o ka huahana o ka kiln, a hoʻemi i ka manawa hana, ʻo ia ka mea kūpono ʻole. mea no ke puhi ana i na pua pua.

5. ʻO ka noi o ka mālama kaiapuni a me ka pae hoʻopakele ikehu he maikaʻi ka thermal conductivity a me ke kūpaʻa wela, a mālama ka mea hoʻololi wela i ka 20%, ka hoʻohana ʻana i ka wahie 20%, ka hoʻohana ʻana i ka wahie 35%, a ua hoʻonui ʻia ka pono hana e 20-30%. ʻO ka mea kūikawā, ʻo ke kūpaʻa ʻana o ka paipu wai hoʻokuʻu i hoʻohana ʻia i ka mea kanu hana mining he 6 a 7 mau manawa o nā mea hana metala maʻamau.

ʻO nā hiʻohiʻona apo silicon carbide sila i hoʻopaʻa ʻia i ka hopena:

1, pale wela

Ma muli o nā hiʻohiʻona o nā mea silicon nitride, silicon nitride sila he kiʻekiʻe ke kūpaʻa wela, a ʻo nā kaʻina hana like ʻole nā ​​ʻano ʻano o ka wela. Hiki ke hoʻohana ʻia nā sila nitride silicon reaction-sintered mai nā degere 1300, a hiki i nā sila nitride silicon non-pressure hiki ke hiki i 1600 degere.

2. Ke kū'ē i ka corrosion

Hiki ke hoʻohana ʻia ke apo sealing silicon nitride mai ka waikawa ikaika a me ke ʻano alkali, a ʻaʻole maʻalahi ka hopena sealing e hōʻemi.

3, komo i ke kū'ē

Hiki ke hoʻohana ʻia nā apo silicon carbide seal e like me ke kaʻina carding, no laila ʻoi aku ka pololei a me ka maʻalahi o ka hoʻolālā, i hui pū ʻia me ke kūpaʻa ʻana o nā mea carbide silicon, hiki ke hoʻohana ʻia nā apo seal silicon nitride e hamo kekahi i kekahi. ʻAʻole hiki ke hōʻemi maʻalahi nā hiʻohiʻona wela kiʻekiʻe.

4. ʻO ka ductility

Reactivity sintered silicon carbide maka mea e like me ka lōʻihi o ka loaʻa ʻana o kekahi ʻenehana kaʻina hana, hiki ke hoʻololi ʻia i nā ʻano like ʻole o ka hulu hipa, ka hana lua, e makemake ai nā mea kūʻai aku i nā waiwai.