pū kōaro pūnaha wai hei hoko
Nā ngā rautaki whawhai pūtau mō ngā poaka he mea nui mo te whirinaki i roto i te whenua, e tuku nei i te hunga huarahi matihi hei āwhina i ngā mahi whawhai ki te pai me te tika. Kua hangaia ēnei rautaki whawhai hei whakamahere i ngā momo whenua rerekē, mai i ngā kōriki iti ki ngā tahuhu kō whatititi, me te hīnga pai me te tūmanako. Nō ngā wā o nāianei, e ai ki ngā rautaki whawhai, he matera whai take matua, pērā i te tungsten carbide me ngā kōhatu komiti, hei whakatika i te whanaketanga o te korekore me te ora ake o te mahi. He rite tonu ngā rautaki ki ngā whakahaere rerekē, inā he roller cone bits, PDC (Polycrystalline Diamond Compact) bits, me ngā diamond core bits, kua hangaia inaianei hei whakamana i ngā take whawhai rerekē. Hei tata ki te whakapakari i ngā āhuatanga kawe, ka whakaiti i te wehewehe me te whakamana i te pai o te rua. Ka hangaia ngā rautaki i runga i ngā tohu tata ki te whakamahi, hei whakamana i te tino tika me te wāhi i waenganui i te mahi, hei whakaiti i te wā whawhai me ngā utu mahi. E ai ki ēnei rautaki, he oranga hāora matua hei tirotiro i te whakamutunga o ngā kawe me te whakamahana i ngā rautaki, he mea nui hei whakatika i te hīnga pai o te whawhai. Mēnā ki te whawhai wai, te whai iwiaroiti, ki te whai i te ara geothermal, kua hangaia ēnei rautaki hei whakamahi pai i roto i ngā taiao whakamaua.
EN
