He mea whakarewa ātete-konumohe teitei: Ngā āhuatanga matua me ngā whakamahinga ahumahi

Mō ngā mahi ahumahi i runga i te pāmahana teitei, he mea nui ngā pūngao mura pono mō te roa me te haumaru o ngā taputapu.He whakarewa ātete-alumina teitei—me te ihirangi alumina 45%–90%—he whiringa pai rawa atu, nā te mea he tino pai tana mahi i roto i ngā taiao wera nui. Kei raro nei he whakamārama poto mō ōna āhuatanga matua me āna whakamahinga.

1. Ngā Āhuatanga Matua o te Mea Whakarewa Aukati-Alumina Teitei

1.1 Ātete Kaha ki te Pāmahana-Tiketike

Ka mau tonu te pumau o te hanganga i te 1600–1800℃ mō te wā roa (me te ātete poto ki ngā tihi teitei), ka pai ake i ngā momo mahi iti-alumina. Mō ngā mahi 24/7 pēnei i te hanga maitai, te hanga sima rānei, ka tapahia e tēnei ngā kati tiaki me te whakaroa i te roa o te ora o ngā taputapu.

1.2 Kaha Ā-Mīhini Pai Rawa

Me te kaha pēhi 60–100 MPa i te pāmahana rūma, ka taea e ia te whakahaere i te taumaha me ngā rauemi papatipu me te kore e pakaru. He mea nui, ka mau tonu tōna kaha i raro i te wera, ka ātete ki te ru wera—he mea pai mō ngā oumu rewa karāhe e rerekē ana te pāmahana, ka whakaiti i te utu nui o ngā pakaru o te arai.

1.3 Ātete ki te Horoi me te Whiu
Ka ātete tōna hanganga matotoru ki te horo matū (hei tauira, te para rewa, ngā hau waikawa) me te pakaru tinana. I roto i ngā kaitahuri maitai, ka ātete ki te rino rewa e tere rere ana; i roto i ngā tahunga para, ka ārai i ngā hau paipa waikawa, ka whakaiti i ngā hiahia whakatika me ngā utu.

1.4 Ngāwari te Tāutanga me te Whānuitanga o ngā Mahi
Hei paura nui, ka konatunatua ki te wai/herehere hei parai ka taea te ringihia, ka hangaia kia rite ki ngā āhua koretake (hei tauira, ngā rūma oumu ritenga) e kore e taea e ngā pereki kua oti te hanga te hanga. Ka hangaia he arai monolitiki maeneene, ka whakakore i te " turuturu ahi" ā, ka pai mō ngā hanganga hou, mō ngā whakahoutanga rānei.

2. Ngā Whakamahinga Ahumahi Matua

2.1 Te Rino me te Whakarewa

Whakamahia ana i roto i ngā arai oumu pupuhi (bosh/heart, >1700℃), ngā arai oumu pewa hiko (EAF), me ngā koko—e ātete ana ki te horo o te maitai rewa me te ngaronga wera. Ka whakarārangihia hoki ngā oumu whakaata mō te whakarewa konumohe/parahi.

2.2 Sima me te Karāhe
He pai mō ngā wāhi tahu oumu sima (1450–1600℃) me ngā arai whakamahana, e tu atu ana i te haki o te kirikiti. I roto i te hanga karāhe, ka arai i ngā tāke rewa (1500℃), e ātete ana ki te waikura karāhe rewa.

2.3 Te Maimoatanga Hiko me te Para
Ka whakakīia ngā oumu poiha waro (e ātete ana ki te pungarehu rere) me ngā rūma tahu para (e tū atu ana ki te mura 1200℃ me ngā hua waikawa), kia haumaru ai, kia iti ai te wā whakaweto.

2.4 Matū me te Hinu
Ka whakakī i ngā pihikete mamaoa (1600℃, mō te hanga ethylene) me ngā oumu tunu kohuke (hei tauira, tongi), kia tū atu ki ngā kohu hauwai me ngā matū waikura.