I raro i ngā āhuatanga noa, ka pāngia te tika o ngā āhuatanga o ngā whakarewanga tika e ngā āhuatanga maha pērā i te hanganga whakarewa, te rauemi whakarewa, te hanga pokepokea ai, te hanga anga, te tunu, te ringihanga, me ētahi atu. Mā te whakatakotoranga, te mahi koretake rānei o tētahi hononga ka huri te tere whakaheke o te whakarewanga. Ka arahi tēnei ki ngā rerekētanga o te tika o ngā āhuatanga o ngā whakarewanga mai i ngā whakaritenga. Ko ngā āhuatanga e whai ake nei ka puta he hapa i roto i te tika o ngā āhuatanga o ngā whakarewanga tika:
(1) Te awe o te hanganga whakarewa: a. Te matotoru o te pakitara whakarewa, te tere whakaheke nui, te pakitara whakarewa angiangi, te tere whakaheke iti. b. He nui te tere whakaheke kore utu, ā, he iti te tere whakaheke aukati.
(2) Te awe o te rauemi whakarewa: a. Ko te nui ake o te ihirangi waro i roto i te rauemi, ko te iti ake o te tere whakaheke raina, ā, ko te iti iho o te ihirangi waro, ko te nui ake o te tere whakaheke raina. b. Ko te tere whakaheke whakarewa o ngā rauemi noa e whai ake nei: te tere whakaheke whakarewa K=(LM-LJ)/LJ×100%, ko te LM te rahi o te kōhao, ā, ko te LJ te rahi o te whakarewa. Ka pāngia a K e ēnei āhuatanga: te pokepokea ware pi K1, te hanganga whakarewa K2, te momo koranu K3, te pāmahana ringihanga K4.
(3) Te awe o te hanga pokepokea ki te tere whakahekenga raina o ngā mea whakarewa: a. Ko te awe o te pāmahana werohanga ware pi, te pēhanga werohanga ware pi, me te wā pupuri pēhanga ki te rahi o te haumitanga ko te mea tino kitea i roto i te pāmahana werohanga ware pi, ā, muri iho ko te pēhanga werohanga ware pi, ā, ka whakamanahia te wā pupuri pēhanga I muri i te hanganga o te haumitanga, he iti noa te pānga ki te rahi whakamutunga o te haumitanga. b. Ko te tere whakahekenga raina o te rauemi ware pi (pokepokea) he tata ki te 0.9-1.1%. c. Ina rongoatia te pokepokea haumitanga, ka nui ake te whakahekenga, ā, ko tōna uara whakahekenga he tata ki te 10% o te whakahekenga katoa, engari ina rongoatia mō te 12 hāora, he pumau te rahi o te pokepokea haumitanga. d. Ko te tere whakahekenga radial o te pokepokea ware pi he 30-40% noa iho o te tere whakahekenga roa. He nui ake te awe o te pāmahana werohanga ware pi ki te tere whakahekenga kore utu i te tere whakahekenga aukati (ko te pāmahana werohanga ware pi pai rawa atu he 57-59℃, Ko te teitei ake o te pāmahana, ko te nui ake o te whakahekenga).
(4) Ko te awe o ngā rauemi hanga angaanga: te onepu zircon, te paura zircon, te onepu Shangdian me te paura Shangdian e whakamahia ana. Nā te iti o te tauwehenga whānui, 4.6×10-6/℃ anake, ka taea te wareware.
(5) Te pānga o te tunu anga: Nā te iti o te tauwehenga whānui o te anga, ina 1150℃ te pāmahana o te anga, he 0.053% noa iho, nō reira ka taea te wareware.
(6) Te awe o te pāmahana maka: ka teitei ake te pāmahana maka, ka nui ake te tere mimiti, ā, ka iti ake te pāmahana maka, ka iti ake te tere mimiti, nō reira me tika te pāmahana maka.
Wā tuku: Whiringa-ā-rangi 15-2021