ʻO nā pōhaku lepo hoʻomaʻamaʻa pālolo: ʻo ke kumu hilinaʻi ma ka ʻoihana kiʻekiʻe-temperature domain

I loko o nā kaʻina hana ʻenehana he nui, ʻo nā kaiapuni wela kiʻekiʻe ke kau nei i nā pilikia maʻamau. Inā i loko o ka metallurgy, ka hana aniani, ka ceramic, a i ʻole nā ​​​​mea hana sima, pono nā mea hilinaʻi e kū i nā wela kiʻekiʻe, e hōʻoiaʻiʻo ana i ka hana paʻa o nā lako hana a me ka hana pono. Ma ke ʻano he mea refractory i hoʻāʻo ʻia i ka manawa, ke pāʻani nei nā pōhaku lepo refractory i kahi hana koʻikoʻi a koʻikoʻi i ka ʻoihana kiʻekiʻe-mehana me kā lākou hana koʻikoʻi.

Hana Kūʻokoʻa no ka Hoʻoponopono ʻana i nā Luʻi Kūlana Kiʻekiʻe

Hōʻike nā pōhaku lepo pālolo i kahi ʻano o ka maikaʻi o ka hana ma muli o ko lākou ʻano kemika kūʻokoʻa a me ka microstructure. ʻO kā lākou mau mea nui he pālolo a me kaolin, a ua hoʻohui pinepine ʻia kekahi hapa o nā mea waiwai kōkua e like me ke one quartz, bauxite, a me ka lanahu gangue. Hāʻawi kēia ʻano hoʻohui maka i hoʻonohonoho pono ʻia iā lākou me nā waiwai refractory maikaʻi loa. ʻO ka mea maʻamau, hiki i nā pōhaku lepo refractory ke kūpaʻa maʻalahi i nā mahana ma luna o 1000 ° C, a hiki i kekahi mau huahana kiʻekiʻe ke pale aku i nā wela kiʻekiʻe loa ma mua o 1500 ° C, e hāʻawi ana i kahi pale pale pale wela kiʻekiʻe no ka hana ʻoihana.

Eia kekahi, hana maikaʻi nā pōhaku lepo refractory i ka pale ʻana i ka corrosion. ʻO ka pālolo a me kaolin i loko o ka mea i loaʻa nā kiʻekiʻe kiʻekiʻe o ka silicate a me ka aluminate, hiki ke pale maikaʻi i ka hoʻoneʻe ʻana o nā mea kemika like ʻole e like me nā waikawa, alkalis, a me nā paʻakai. ʻO kēia hiʻohiʻona ka mea i makemake nui ʻia i nā ʻoihana me nā koi kiʻekiʻe loa no ka pale ʻana i ka corrosion, e like me nā ʻoihana kemika a me nā metallurgical, e hōʻoiaʻiʻo ana i ka hana paʻa lōʻihi o nā mea hana i nā kaiapuni kemika paʻakikī.

Ma nā wahi wela kiʻekiʻe, he pilikia maʻamau ka lole lole. Eia nō naʻe, ʻoi aku ka maikaʻi o ke kūpaʻa ʻana o nā pōhaku lepo refractory ma muli o ko lākou paʻakikī kiʻekiʻe a me ke kiʻekiʻe kiʻekiʻe. ʻAʻole maʻalahi ko lākou ʻili i nā wela kiʻekiʻe, a hiki iā lākou ke mālama i ka maʻalahi a me ka ikaika mechanical no ka manawa lōʻihi, e hoʻonui nui i ke ola lawelawe o nā mea hana a hoʻemi i nā kumukūʻai mālama.

Eia kekahi, loaʻa i nā pōhaku lepo refractory maikaʻi nā waiwai insulation thermal. Hiki i nā mea insulation thermal e like me ka perlite hoʻonui a me ka vermiculite i hoʻonui pinepine ʻia i loko e hiki ke pale maikaʻi i ka hoʻololi ʻana i ka wela, e pāʻani i kahi kūlana mālama wela maikaʻi loa i nā kaiapuni kiʻekiʻe, hoʻemi i ka nalo wela, a hoʻomaikaʻi i ka hoʻohana ʻana i ka ikehu.

Nā noi ākea e hoʻonui i ka hoʻomohala ʻana i nā ʻoihana lehulehu
Me kā lākou hana koʻikoʻi, ua hoʻohana nui ʻia nā pōhaku lepo refractory i nā ʻoihana he nui.

I ka ʻoihana metallurgical, mai nā kapuahi puhi, nā kapuahi wela a hiki i nā kapuahi hāmama a me nā kapuahi uila, ʻo nā pōhaku lepo refractory nā mea waiwai nui. Ma keʻano he mea lining, hiki iā lākou ke pale i ka'ōpala a me ka hoʻoheheʻeʻiaʻana o ka hao i hoʻoheheʻeʻia a me ka'ōpala, e hōʻoiaʻiʻo ana i ka holomua maikaʻi o ke kaʻina hana metallurgical a me ka hoʻolakoʻana i kahi kūlana wela paʻa no ka hoʻoheheʻeʻana i nā metala e like me ke kila.

I ka ʻoihana hana aniani, pono e hana nā kapuahi hoʻoheheʻe aniani i nā wela kiʻekiʻe no ka manawa lōʻihi, a ʻo nā koi no nā mea refractory he koʻikoʻi loa. Ua lilo nā pōhaku lepo palolo i koho maikaʻi loa no nā kapuahi hoʻoheheʻe aniani ma muli o ko lākou kūpaʻa wela kiʻekiʻe, ke kūpaʻa corrosion, a me ke kūpaʻa wela maikaʻi. ʻAʻole hiki iā lākou ke pale wale i ka hoʻoheheʻe ʻana o ke aniani wela kiʻekiʻe akā mālama pū kekahi i ke kūpaʻa o ka hoʻololi ʻana o ka mahana, e hōʻoia ana i ka hana kiʻekiʻe o ke aniani.

I ka ʻoihana seramika, pono e hoʻomalu pono nā kiln e like me ka tunnel kilns a me ka shuttle kilns i ka mahana a me ka lewa i ka wā e puhi ai i nā huahana ceramic. Ma muli o kā lākou mau waiwai refractory maikaʻi loa a me ka mālama ʻana i ka wela, hiki i nā brick refractory pālolo ke hāʻawi i kahi wahi wela paʻa no ke kī ʻana i ka ceramic, e kōkua ana i ka hoʻomaikaʻi ʻana i ka maikaʻi a me ka hua o nā huahana ceramic.

I ke kaʻina hana sima, ʻo ka rotary kiln ka mea nui, a ʻoi loa ka kiʻekiʻe o ka mahana hana. Ma ke ʻano he mea hoʻopili o ka rotary kiln, hiki i nā pōhaku lepo refractory ke pale maikaʻi i ka ʻaʻahu a me ka hoʻoneʻe kemika o nā mea wela kiʻekiʻe, e hōʻoia i ka hana paʻa o ka rotary kiln, a hāʻawi i kahi hōʻoia no ka hana pono o ka hana sima.

Kaʻina Oʻo a me ka Pono Pono

Ua hoʻomohala maikaʻi ʻia a hoʻomaʻemaʻe ʻia ke kaʻina hana o nā pōhaku lepo palolo a hoʻomaʻemaʻe ʻia i ka wā lōʻihi a ua oʻo loa. ʻO ka mea mua, koho maikaʻi ʻia nā mea waiwai kiʻekiʻe e like me ka pālolo a me kaolin. A laila, hui ʻia nā mea maka i nā ʻāpana kūpono a hoʻokumu ʻia e ke kaomi semi-maloʻo a i ʻole nā ​​​​mea hana plastic. Ma hope o ka hoʻokumu ʻana, hoʻomaloʻo ʻia nā blanks brick e hoʻoneʻe i ka wai nui, a ʻo ka hope, ua puhi ʻia lākou i kahi kiln wela kiʻekiʻe. Ma nā wela kiʻekiʻe mai ka 1250 ° C a hiki i ka 1420 ° C, hiki ke hoʻololi i ke kino a me ke kemika i loko o nā blanks brick, e hana ana i kahi ʻano kristal paʻa, a laila e loaʻa ai ka refractory maikaʻi loa a me nā waiwai mechanical.

ʻO kēia kaʻina hana oʻo e hōʻoia i ka maikaʻi kūpaʻa a hilinaʻi o nā pōhaku lepo refractory. Loaʻa i kēlā me kēia brick i ka nānā ʻana i ka maikaʻi, a ʻo kona helehelena, ka nui, a me nā waiwai kino e kū ana i nā kūlana kūpono a me nā koi o ka mea kūʻai aku. ʻO nā pōhaku maʻamau a i ʻole nā ​​​​pilikia kūikawā like ʻole, hiki iā lākou ke hoʻokō i nā pono like ʻole o nā lako ʻoihana like ʻole.

E koho iā mākou no ka loaʻa ʻana o nā pōhaku lepo palolo kiʻekiʻe

Ma waena o nā mea hoʻolako brick refractory pālolo, kū mākou i waho me kā mākou mau makahiki o ka ʻoihana ʻoihana, ʻenehana hana kiʻekiʻe, a me ka ʻōnaehana mana koʻikoʻi. Loaʻa iā mākou kahi hui R&D ʻoihana e kūpaʻa mau ana i ka hoʻomaikaʻi ʻana a me ka hana hou ʻana i ka hana huahana e hoʻokō i nā pono ulu o kā mākou mea kūʻai.

ʻO kā mākou mau hale hana he mea hou loa, hiki i ka hana nui a me ka hōʻoia ʻana i ka lako lako. No ka nui o kāu kauoha, hiki iā mākou ke hoʻouna i ka manawa. Ma ka manawa like, hoʻopili mākou i ka mea nui i ka lawelawe mea kūʻai aku. Mai ka kūkākūkā huahana, ka hoʻolālā hoʻonā a hiki i ka lawelawe ma hope o ke kūʻai aku, e hāʻawi kahi hui ʻoihana iā ʻoe i ke kākoʻo piha a me ka hōʻoia.

Inā ʻoe e ʻimi nei i nā pōhaku lepo refractory kiʻekiʻe e hāʻawi i nā ʻoluʻolu pale pale wela kiʻekiʻe no kāu hana ʻoihana, a laila koho iā mākou. E lawelawe mākou iā ʻoe me ka naʻau holoʻokoʻa a hana lima pū me ʻoe e hana i kahi wā e hiki mai ana. E hoʻokaʻaʻike mai iā mākou i kēia manawa no ka loaʻa ʻana o ka ʻike a me nā huaʻōlelo hou aʻe a hoʻomaka i kāu huakaʻi e kūʻai i nā pōhaku lepo refractory kiʻekiʻe.