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Nā ʻano a me nā waiwai kino o nā refractory maʻamau

White corundum section sand

1. He aha ka refractory?

ʻO nā mea refractory e pili ana i nā mea non-metallic inorganic me ke kūpaʻa ahi ʻoi aku ma mua o 1580 ℃.Loaʻa iā ia nā ores kūlohelohe a me nā huahana like ʻole i hana ʻia ma o kekahi mau kaʻina e like me nā koi kumu.Loaʻa iā ia kekahi mau waiwai mechanical wela a me ka paʻa leo maikaʻi.He mea pono ia no nā ʻano mea hana wela kiʻekiʻe.Loaʻa iā ia ka laulā o nā hoʻohana.

2、 Nā ʻano refractory

1. ʻO nā refractory acid ka mea maʻamau i nā refractory me ka SiO2 maʻiʻo ma mua o 93%.ʻO kāna hiʻohiʻona nui, hiki iā ia ke pale i ka hoʻoheheʻe ʻana o ka slag acid i ka wela kiʻekiʻe, akā maʻalahi ka pane ʻana me ka slag alkaline.Hoʻohana mau ʻia nā pōhaku silica a me nā pōhaku lepo e like me ka refractory acid.ʻO ka silica brick kahi huahana siliceous i loaʻa ma mua o 93% silicon oxide.ʻO nā mea maka i hoʻohana ʻia me ka silica a me ka ʻōpala silica brick.He kūpaʻa ikaika kona i ka erosion slag acid, ka wela hoʻoluʻu haʻahaʻa kiʻekiʻe, ʻaʻole e emi a hoʻonui iki paha ma hope o ka calcination pinepine;Eia nō naʻe, maʻalahi ia e hoʻopau ʻia e ka alkaline slag a me ke kūpaʻa haʻahaʻa haʻahaʻa haʻahaʻa.Hoʻohana nui ʻia ka silica brick i ka umu coke, ka umu aniani, ka umu hao ʻakika a me nā mea wela ʻē aʻe.Lawe ka pālolo pālolo i ka pālolo refractory ma ke ʻano he kumu nui a loaʻa iā 30% ~ 46% alumina.He refractory ʻakika nāwaliwali ia me ke kūpaʻa haʻalulu wela maikaʻi a me ke kūpaʻa corrosion i ka acidic slag.Hoʻohana nui ia.

2. ʻO nā refractory alkaline e pili ana i nā refractory me ka magnesium oxide a i ʻole magnesium oxide a me ka calcium oxide ma ke ʻano nui.Loaʻa i kēia mau refractoriness kiʻekiʻe ka refractoriness a ikaika ikaika i ka alkaline slag.No ka laʻana, magnesia brick, magnesia chrome brick, chrome magnesia brick, magnesia alumini brick, dolomite brick, forsterite brick, etc.

3. ʻO nā refractory alumini silicate e pili ana i nā refractory me SiO2-Al2O3 ma ke ʻano nui.Wahi a ka Al2O3 maʻiʻo, hiki ke hoʻokaʻawale ʻia i semi siliceous (Al2O3 15 ~ 30%), pālolo (Al2O3 30 ~ 48%) a me ka alumina kiʻekiʻe (Al2O3 ʻoi aku ma mua o 48%).

4. ʻO ka hoʻoheheʻe ʻana a me ka hoʻolei ʻana i ka refractory e pili ana i nā huahana refractory me kahi ʻano i hoʻolei ʻia ma hope o ka hoʻoheheʻe ʻana i ka pūʻulu ma ke kiʻekiʻe wela e kekahi ʻano.

5. ʻO nā refractory neutral e pili ana i nā refractory ʻaʻole maʻalahi ke hana me ka ʻakika a i ʻole ka alkaline slag i ka wela kiʻekiʻe, e like me nā refractory carbon a me chromium refractory.Hoʻopili kekahi i nā refractory alumina kiʻekiʻe i kēia ʻāpana.

6. ʻO nā refractory kūikawā he mau mea hou nonmetallic inorganic i hoʻomohala ʻia ma ke kumu o nā seramika kuʻuna a me nā refractory maʻamau.

7. ʻO ka refractory Amorphous kahi hui i haku ʻia me ka refractory aggregate, pauka, binder a i ʻole nā ​​mea hoʻohui ʻē aʻe i kekahi ʻāpana, hiki ke hoʻohana pololei a ma hope o ka hoʻomākaukau ʻana i ka wai kūpono.ʻO ka refractory unshaped kahi ʻano hou o ka refractory me ka ʻole o ka calcination, a ʻo kona kūpaʻa ahi ʻaʻole i emi iho ma mua o 1580 ℃.

3、 He aha nā refractory i hoʻohana pinepine ʻia?

ʻO nā refractories maʻamau i hoʻohana mau ʻia e pili ana i ka silica brick, semi silica brick, lepo lepo, alumina kiʻekiʻe, pōhaku magnesia, etc.

ʻO nā mea kūikawā i hoʻohana pinepineʻia,ʻo ia ka AZS brick, corundum brick, pili pono i ka magnesium chromium brick, silicon carbide brick, silicon nitride bricked silicon carbide brick, nitride, silicide, sulfide, boride, carbide a me nā mea'ē aʻe non oxide refractories;Calcium oxide, chromium oxide, alumina, magnesium oxide, beryllium oxide a me nā mea refractory ʻē aʻe.

ʻO ka hoʻohana pinepine ʻana i ka thermal insulation a me nā mea refractory me nā huahana diatomite, nā huahana asbestos, ka papa insulation thermal, etc.

ʻO nā mea amorphous refractory i hoʻohana pinepine ʻia, ʻo ia nā mea hoʻoponopono i ka umu ahi, nā mea ramming kūpaʻa ahi, nā mea hoʻoheheʻe ahi, nā plastik pale ahi, ka lepo pale ahi, nā mea puhi ahi pale ahi, nā projectiles pale ahi, nā uhi pale ahi, ke ahi māmā. - nā castables kū'ē, ka lepo pū, nā valve seramika, etc.

4、 He aha nā waiwai kino o nā refractory?

ʻO nā waiwai kino o nā refractory e pili ana i nā waiwai kūkulu, nā waiwai wela, nā waiwai mechanical, nā waiwai lawelawe a me nā waiwai hana.

ʻO nā waiwai o ka refractory e pili ana i ka porosity, ka nui o ka nui, ka hoʻoheheʻe wai, ka ea permeability, ka puʻupuʻu nui o ka pore, etc.

ʻO nā waiwai wela o nā refractory e pili ana i ka conductivity thermal, thermal expansion coefficient, ka wela kikoʻī, ka mana wela, ka conductivity thermal, thermal emissivity, etc.

ʻO nā waiwai mechanical o nā refractory e pili ana i ka ikaika compressive, ka ikaika tensile, ka ikaika flexural, ka ikaika torsional, ka ikaika shear, ka ikaika hopena, ka pale ʻana, ke kolo, ka ikaika paʻa, ka modulus elastic, etc.

ʻO ka hana lawelawe o nā refractory e pili ana i ka pale ahi, ka hoʻoluhi ʻana i ka wela, ka hoʻololi ʻana i ka laina, ka pale ʻana i ka wela, ka pale ʻana, ka pale ʻana i ka waikawa, ke kūpaʻa alkali, ke kūpaʻa hydration, ke kūpaʻa CO erosion, conductivity, oxidation resistance, etc.

ʻO ka hana o nā mea refractory e pili ana i ka kūlike, slump, fluidity, plasticity, cohesiveness, resilience, coagulability, hardenability, etc.


Ka manawa hoʻouna: Mar-15-2022