He aha te Ngongo Kowiri tira Tuitui kanapa-whakarewa (BA)?

1. Tukanga Whakamahana Kanapa:

· Āhua Whakahaeretia:
Tengā ngongo baka whakanohoia ki roto i tētahi oumu kua whakakiia ki tētahi āhuarangi whakahaeretia, ko te tikanga hehau korekore(pērā i te argon, i te hauota rānei) hete whakaiti i te ranunga hau(pērā i te hauwai).
Ka ārai tēnei hau i te waikura, ā, ka pupuri i te mata kanapa, ma.

· Te Maimoatanga Wera:
Ka whakamahanahia ngā ngongo ki te1,040°C ki te 1,150°C(1,900°F ki te 2,100°F), i runga i te momo maitai kore waikura.
He tino teitei tēnei pāmahana hei whakahou i te hanganga whakarewa, hei whakamama i ngā ahotea o roto, hei whakapakari hoki i te ātete ki te waikura.

· Whakamatao Tere (Whakamātao):
I muri i te maimoatanga wera, ka tere te whakamatao i ngā ngongo i roto i te hau kotahi e whakahaerehia ana hei: Ārai i te waikura o te mata.
Maukati i ngā āhuatanga hangarau me te hanganga witi kua whakapaitia. 

2. Hanganga Tuitui:
Kāore he hononga i hangaia mō te ngongo, kia ōrite ai te hanganga, kia ātete ki te pēhanga teitei, kia pai ai hoki ngā āhuatanga miihini.
Ka tutuki te hanganga maeneene mā te whakamahi i te extrusion, te kukume matao, te hurihuri wera rānei.
 
3. Rauemi:
He mea hanga i te nuinga o te wā mai i ngā momo maitai kore waikura pērā i te304/304L, 316/316L, ngā koranu motuhake rānei i runga i te whakamahinga.
Mā te whiriwhiri i ngā rauemi ka māia te ātete ki te waikura, te kaha, me te hototahi ki ngā momo taiao rerekē.
 
4. Whakaotinga Mata:
Mā te tukanga whakamahana kanapa ka puta he mata maeneene, he ma, he kanapa, kāore he unahi, he waikura rānei.
Mā tēnei ka ātaahua te āhua o ngā ngongo, ka ngāwari hoki te horoi, ka whakaiti i te tūponotanga o te poke.