He mīhini tino nui te paipa keri mō ngā taputapu mīhini keri. He taputapu mahi ngā paipa keri me te mata keri mō te keri toka, ā, he nui te pānga o ēnei ki te whai huatanga o te keri toka.
Ko te paipa wiri, e mōhiotia ana ko te maitai, he mea hanga i te maitai waro, he wāhanga he tapaono te taha, he tauira rānei. Ko te kaupapa o te takotoranga he tango i te paura o te pū.
Ka whiriwhiria te āhua o te wiri i runga i te pakeke me te hanganga o te toka. E toru ngā momo wiri noa: te whao kotahi, te whao takirua me te whao ripeka. Ka taea te whakamahi i ngā wiri whao takirua me ngā wiri āhua ripeka i roto i te toka whānui.
E rua ngā huarahi hei hono i te mata o te paipa keri. Ko tētahi ko te whakakotahitanga o te paipa keri me te mata keri (e mōhiotia ana ko te keri), ka taea anake te whakamahi i te mea kāore i te nui te pakeke o te toka, nō reira he ngāwari te mau i te pane muka. I tēnei wā, me hanga te mata moton, e mōhiotia whānuitia ana ko te muka keri, ko te keri whakarerekē rānei. Ko tētahi atu he paipa keri e honoa ana ki te mata keri mā te miro, mā te whakapiko rānei, e whakamahia whānuitia ana i roto i te toka mārō. Ko te mata tapahi o te mata keri he mea whakakikorua ki te maitai taputapu carbide, e mōhiotia whānuitia ana ko te mata koranu. Ko te painga o tēnei momo keri ko te taea te tango me te whakakapi i te keri i ngā wā katoa i muri i te huri, ā, ka taea e te paipa keri te mahi me te kore e whakakapi, ka whakapai ake i te pai o te mahi, ka penapena i te maitai, ka whakaiti i te utu o te whakatika muka.
Ka whakamahia ngātahi te mata keri me te paipa keri i roto i te mahi keri. I te wā e keri ana, whakamahia he paipa keri poto ake me te mata keri nui ake hei whakatuwhera i te kōhao i te tuatahi, kātahi ka tāpirihia mārire te paipa keri hei whakamahi i te mata keri iti ake, kia nui ai te mata keri tuatahi, kātahi ka iti, mārire haere te whakaiti ki te kōhao e hiahiatia ana, kia poto te paipa keri tuatahi, kātahi ka roa, takitahi hei whakarerekē i te roa ki te hohonu e hiahiatia ana.
Wā tuku: Paenga-whāwhā-09-2020
