ʻO ka ʻākaki kūpaʻa ʻana he pōhaku ʻaʻa me ke kūpaʻa ikaika o ka waikawa a hiki ke hoʻohana nui ʻia i nā ʻoihana. Acid resistant block ka mea koho maikaʻi loa no kāu papahana me kā lākou mau hiʻohiʻona o ke kaomi hōʻoia, ka pale ʻana i ka corrosion, maʻalahi ke hoʻomaʻemaʻe a me ke kūpaʻa kumu waika. ʻO nā poloka kūpaʻa ʻakika he ʻano paʻa, hiki ke kūʻē i kekahi ʻano pH indicator alkaline medium i ka mahana maʻamau, akā ʻaʻole kūʻē i ka hoʻoheheʻe ʻana i ka alkali i ka wela kiʻekiʻe. ʻO ke ahi ahi kūpaʻa waikawa me ka ʻoi aku o 93% SiO2 ʻike, hoʻohana i ka silica ma ke ʻano kumu nui a hiki ke pale aku i ka hoʻoheheʻe ʻana o ka umu ahi waikawa. Hoʻohana nui ʻia nā pōhaku ahi ʻākaʻikaʻi i nā ʻano umu ahi a me nā kiln me nā mea kemika waikawa.
ʻO ka mea nui o ka pahu ahi hōʻoiaʻiʻo he quartz, feldspar a me ka pālolo, ʻo ka block refractory acid kahi ʻano mea anti corrosive e ka oxygenolysis wela kiʻekiʻe. ʻO nā pōhaku lepo refractory ʻaʻa i nā hiʻohiʻona o ke kūpaʻa kiʻekiʻe o ka waika, haʻahaʻa ka wai absorption, ʻaʻole maʻalahi e hoʻoheheʻe ʻia i ka mahana maʻamau, ʻaʻole maʻalahi e hoʻohaumia ʻia e ka waena. koe wale ka waika hydrofluoric a me ka waika phosphoric wela, he waiwai anticorrosive maikaʻi loa ka ʻakika hōʻoia i ke ahi i ka wai chlorine, ka wai paʻakai, ka waiuma hydrochloric, ka waikawa sulfuric, ka hydrogen nitrate a me nā mea ʻē aʻe a me nā ʻano alkaline i ka mahana maʻamau.
Nā mea | Pilikia hoʻopaʻa ʻakika kūikawā | ʻO nā pōhaku lepo-ʻakika māmā |
SiO2(%) ≥ | 65 | 65 |
ʻOi aku ka nui (g/m³) | 1.6-1.8 | 1.0-1.3 |
ʻO ka ikaika hoʻoemi anuanu (MPa) ≥ | 15 | 10 |
ʻO ka hoʻoili wela W/( m·K) ≤ | 0.65 | 0.45 |
ʻO ka wai ʻana (%) ≤ | 15 | maka hana 5 |
ʻAkika-hōʻoia pākēneka(%) ≤ | 98 | 97 |
Ka Mahana lawelawe ( ℃) ≤ | 1000 | 1000 |
E like me ka waiwai ikaika o ka waika ikaika o ka waika-proof brick, hiki ke hoʻohana ʻia i nā mea wela kiʻekiʻe me ka lewa waika a me ka erosion slag, a hiki ke hoʻohana nui ʻia ka poloka hōʻoiaʻiʻo i ke kūkulu ʻia ʻana o ka hale kiaʻi, ka loko wai, ka pahu, ka ʻauwaha o ka. ʻaila, ʻoihana kemika, mea hoʻomomona, lāʻau lapaʻau, brewing, huahana waiu, hana pepa, hoʻoheheʻe ʻia, fiber kemika a me ka electroplating, hale hana kemika, hana uila, kinoea a me nā ʻoihana ʻē aʻe.
ʻO ka hale hana refractory RS kahi mea hoʻolako ʻoihana paʻa i ka waika i hoʻokumu ʻia i nā makahiki 90 o iwakālua mau kenekulia. ʻO ka hale hana refractory RS he loea i nā pōhaku lepo waika no nā makahiki he 20. inā loaʻa iā ʻoe kekahi koi o ka magnesite chrome block, a i ʻole he nīnau e pili ana i ka waika kūpaʻa piliki e pili ana i nā hōʻailona kino a me nā kemika, e ʻoluʻolu e kelepona mai iā mākou no ka manuahi. a me ka hale hana refractory Rs ma ke ʻano he mea hana ʻoihana acid resistant brick ma Kina, loaʻa kekahi mau mea hoʻokūkū e like me kēia: