Ko te ingoa o te karāhe mānu i muri i te karāhe rewa e mānu ana i runga i te mata o te konganuku rewa kia puta ai he āhua oro. Ka mānu te karāhe rewa i runga i te mata o te tine konganuku i roto i te kaukau tine kua whakakiia ki te hau tiaki (N2+ H2) mai i te rokiroki rewa. I runga ake nei, ka hangaia te karāhe papatahi (karāhe silicate āhua-pereti) mā te whakapararite me te whakakanapa hei hanga i tētahi rohe karāhe matotoru ōrite, papatahi, kua whakakanapahia.
Te tukanga whakaputa karaihe pōtae
Ko te rauemi puranga i whakaritea mai i ngā rauemi mata kua tohua kia rite ki te tauira ka rewa, ka whakamāramahia, ka whakamataohia kia tae ki te karāhe rewa o te 1150-1100°C, ā, ka ringihia tonutia te tine ki roto i te karāhe rewa mā te awa rere e hono ana ki te kaukau tine me te horoi hohonu ki roto i te kaukau tine i roto i te tāke, ka mānu i runga i te mata o te wai tine matotoru, i raro i te mahi tahi a tōna ake kaha taumaha, te taumahatanga mata, te kaha kukume o te kaitahuri taha me te tēpu roera whakawhiti, ka horahia te wai karāhe, ka papatahi, ka angiangi ki runga i te mata wai tine (Ka hangaia hei rīpene karāhe me ngā mata papatahi o runga me raro. Ka toia e te tēpu roera whakawhiti i te hiku o te tāke tine me te roera taraiwa poka whakamahana e hono ana ki a ia, ā, ka arahina ki te tēpu roera waipuke, ka haria ki roto i te poka whakamahana, kātahi ka whakamahana. I muri i te tapahi, ka whiwhi i te hua karāhe mānu.
Ngā painga me ngā huakore o te tikanga karāhe pōrewarewa
Ki te whakatauritea ki ētahi atu tikanga hanga, ko ngā painga o te tikanga pōrewai ko:
1. He pai te kounga o te hua, pērā i te papatahi o ngā mata, te whakarara tetahi ki tetahi, me te kaha o te whakawhiti.
2. He nui te putanga. Ko te nuinga o te wā, ka whakawhirinaki ki te rōrahi rewa o te rua whakarewa karāhe me te tere kume o te hanganga rīpene karāhe, ā, he māmā ake te whakanui ake i te whānui o te pereti.
3. He maha ngā momo. Ka taea e te tukanga te whakaputa matotoru mai i te 0.55 ki te 25mm mō ngā kaupapa maha: i te wa ano, ka taea hoki te hanga i ngā paninga tae-ake me te paninga ipurangi rerekē mā te tukanga pōrewai.
4. He māmā noa te whakahaere pūtaiao me te whakatutuki i te mīhini raina-katoa, te aunoatanga, me te hua mahi teitei.
5. He pai te wā mahi roa tonu mō te whakaputa pumau
Ko te ngoikoretanga matua o te tukanga pōrewai ko te nui o te haumitanga whakapaipai me te wāhi papa. Kotahi anake te matotoru o te hua ka taea te whakaputa i te wā kotahi. Tērā pea ka mutu te whakaputanga o te raina katoa i tētahi aituā, nā te mea me whai pūnaha whakahaere pūtaiao pakari hei whakarite kei te pai te āhua o te raina katoa o ngā kaimahi me ngā taputapu, ngā taputapu me ngā rauemi.
Saida Glasshoko i te karāhe mānu taumata hiko akomanga A mai i te kaihoko pono hei whakatutuki i te hiahia nui a ā mātou kiritaki mōkarāhe whakamaroke,karāhe taupokimō te mata pā,karāhe tiakihei whakaaturanga i ngā rohe rerekē.
Wā tuku: 6 o Ākuhata 2020