Ngā Painga Mahi o ngā Pereki Waro Konupora

Ko ngā painga o ngā pereki waro konupūmā ko:te ātete ki te horo o te para, me te ātete pai ki te ru wera. I ngā wā o mua, ko te ngoikoretanga o ngā pereki MgO-Cr2O3 me ngā pereki dolomite ko te mimiti i ngā wāhanga para, ka hua ake te pakaru o te hanganga, ka puta ai te kino wawe. Mā te tāpiri i te graphite, ka whakakorea e ngā pereki waro konupūmā tēnei ngoikoretanga. Ko tōna āhuatanga ko te para ka uru noa ki te mata mahi, nō reira ko te paparanga tauhohenga Ka herea ki te mata mahi, he iti ake te kiri o te hanganga, ā, he roa te ora mahi.

Ināianei, hei tāpiri atu ki ngā pereki waro konupūmā kua herea ki te uku me te kapia tuku iho (tae atu ki ngā pereki konupūmā kua whakakīia ki te hinu),kei roto i ngā pereki waro konupūmā e hokona ana i te mākete:

(1) He pereki waro konupūmā i hangaia ki te konupūmā kei roto ko te 96%~97% MgO me te karāpeti 94%~95%C;

(2) He pereki waro konupūmā i hangaia ki te konupūmā kei roto ko te 97.5% ~ 98.5% MgO me te karāpeti 96% ~ 97% C;

(3) He pereki waro konupūmā i hangaia ki te konupūmā kei roto ko te 98.5%~99% MgO me te 98%~C karāpeti.

E ai ki te nui o te waro, ka wehea ngā pereki waro konupūmā ki:

(I) Ngā pereki konupora kua tahuna ki te hinu (he iti iho i te 2%) te nui o te waro;

(2) Ngā pereki konupūmā waro-here (iti iho i te 7%) te nui o te waro;

(3) Pereki waro konupūmā honohono-kapia hangai (ko te nui o te waro he 8%~20%, tae atu ki te 25% i ētahi wā). He maha ngā wā ka tāpirihia ngā ārai mate ki ngā pereki waro konupūmā honohono-kapia/kapia (ko te nui o te waro he 8% ki te 20%).

Ka hangaia ngā pereki waro konupora mā te whakakotahi i te onepu MgO tino parakore me te karāpeti unahi, te pango waro, me ētahi atu. Kei roto i te tukanga hanga ko ēnei tukanga e whai ake nei: te kuru i ngā rauemi mata, te tātari, te whakarōpū, te whakaranu kia rite ki te hoahoa tauira rauemi me te mahi whakatakoto hua, kia rite ki te whakakotahitanga. Ka whakanuia te pāmahana o te momo kaihoko ki te tata ki te 100~200℃, ā, ka pokepokea ngātahitia me te mea here kia puta ai te paru MgO-C (ranunga tinana matomato). Ka hangaia te rauemi paru MgO-C mā te whakamahi i te kapia hangai (te nuinga he kapia phenolic) i roto i te āhua makariri; ka hangaia te rauemi paru MgO-C me te uku (ka whakamahanahia ki te āhua wai) i roto i te āhua wera (tata ki te 100°C). E ai ki te rahi o te puranga me ngā whakaritenga mahi o ngā hua MgO-C, ka taea te whakamahi i ngā taputapu wiri korehau, ngā taputapu whakakoi pēhi, ngā extruders, ngā perehi isostatic, ngā perehi wera, ngā taputapu whakamahana, me ngā taputapu ramming hei tukatuka i ngā rauemi paru MgO-C ki te āhua tino pai. Ka whakanohoia te tinana MgO-C kua hangaia ki roto i te oumu i te 700~1200°C kia whakamahanatia kia huri ai te mea here ki te waro (ka kiia tēnei tukanga he whakawaro). Hei whakanui ake i te mātotoru o ngā pereki waro konupūmā me te whakapakari i te here, ka taea hoki te whakamahi i ngā whakakī e rite ana ki ngā mea here hei whakakī i ngā pereki.

I ēnei rā, ko te kapia hangai (ina koa ko te kapia phenolic) te mea e whakamahia ana hei here i ngā pereki waro konupora.Ko ngā painga matua o te whakamahinga o ngā pereki waro konupora e herea ana ki te kapia hangai he mea whai hua ēnei:

(1) Mā ngā āhuatanga taiao ka taea te tukatuka me te whakaputa i ēnei hua;

(2) Mā te tukanga whakaputa hua i raro i ngā āhuatanga whakaranu makariri ka penapena pūngao;

(3) Ka taea te tukatuka i te hua i raro i ngā āhuatanga kore-whakamaroke;

(4) Ki te whakatauritea ki te here uku tā, kāore he āhua kirihou;

(5) Mā te nui ake o te waro (he nui ake te karāpeti, te waro bituminous rānei) ka taea te whakapai ake i te ātete ki te kakahu me te ātete ki te paru.