E ai ki te rauemi mata hiri,ngā takirere kuahaka taea te wehewehe ki ngā momo e rua: te hiri mārō me te hiri ngohengohe. He aha te rerekētanga i waenga i te takirere hiri ngohengohe me te takirere hiri mārō:
Takirere keti hiri mārō: Ko ngā rauemi hiri i runga i ngā mata hiri e rua he mea whakarewa, e kiia ana ko te "hiri mārō". He ātete pāmahana teitei, he ātete kakahu, he pai ngā āhuatanga miihini pēnei i te: maitai + maitai; maitai + parahi; maitai
+ Karāpiti; maitai + maitai koranu. Ko ngā rauemi hiri e whakamahia whānuitia ana ko: te maitai kore waikura 13Cr, ngā rauemi koranu mārō mata-mārō, te karāhe tungsten rehu, me ētahi atu. Kāore i te tino pai te hiri o te mata hiri.
Te takirere kuaha hiri ngohengohe: he mea hanga te takirua hiri ki ngā rauemi whakarewa i tetahi taha, ā, he rauemi kore-whakarewa ngāwari i tetahi taha, e kiia ana ko te "hiri ngohengohe". He pai te mahi hiri o tēnei momo hiri, engari kāore e ātete ki te pāmahana teitei, he ngāwari ki te mau, ā, he ngoikore ngā āhuatanga miihini. Pērā i: te maitai + te rapa; te maitai + te PTFE, me ētahi atu. Ko te tikanga he iti te pakeke o tetahi taha o te takirua hiri. I te nuinga o te wā, he mea hanga te nohoanga hiri ngohengohe ki ngā rauemi kore-whakarewa me te kaha, te pakeke me te ātete pāmahana. He pai te mahi hiri, ā, kāore e taea te turuturu, engari he roa te ora. Ki te whakataurite ki te ngoikore o te urutau ki te pāmahana, he mea hanga te hiri mārō ki te whakarewa, ā, he ngoikore te mahi hiri, ahakoa e kī ana ētahi kaihanga kāore e taea te turuturu. Ko te kaupapa o te hanga o te takirere kuaha hiri ngohengohe: hei whakaoti i te raruraru o te nohoanga takirere me te mata hiri o te pereti takirere e waikura ana, e hē ana rānei, ka taea e te pereti takirere te utu aunoa mō te taupoki pēhanga kikī me te taurite pēhanga aunoa me te takirere kuaha hiri ngohengohe, me te whakaoti i te raruraru o te rauemi hiri ngohengohe e pakaru ana i te waku. Ko te raruraru o te mata hiri, nā te mea ka taea te whakakapi i te ringaringa hiri o te takirere kuaha, ka nui ake te whakamahinga o te takirere.
Te whānuitanga mahi o te takirere kuaha hiri ngohengohe: te diameter (p50-p400mm, te pēhanga 2.5-4.0MPa, ngā momo wai pāmahana noa i raro i te 200℃).
Kāore e taea e te hiri ngohengohe te whakatutuki i ngā whakaritenga tukanga mō ētahi rauemi waikura, ā, ka taea e te hiri mārō te whakaoti!
Ka taea e ēnei momo hiri e rua te whakakī tetahi ki tetahi. Mō te piripono, he pai te hiri ngohengohe, engari ināianei ka taea hoki e te piripono o te hiri mārō te whakatutuki i ngā whakaritenga e rite ana! Ko te painga o te hiri ngohengohe he pai te mahi hiri, engari ko te ngoikoretanga he ngawari ki te tawhito, ki te pakaru, ā, he poto te ora mahi. He roa te ora mahi o te hiri mārō, engari he kino ake te piripono i te hiri ngohengohe.