Ngā Momo Ārai o ngā Mita Rere Hikohiko

Kupu Whakataki

Ngā mita rere hikohikohe mea nuingā taonga puoromō te ine i te rere o ngā wai kawe i roto i ngā tono ahumahi maha. He maha ngā mahi nui o te arai o te mita rere hikohiko. He ārai i waenga i ngā irahiko me te wai, e tiaki ana i ngā irahiko mai i te waikura, ā, e whakarite ana i te ine tika. Hei tāpiri, ka tiakina te pakitara o roto o te tinana mita rere mai i ngā pānga waikura pea o te wai. He rerekē ngā momo arai kua hangaia hei whakatutuki i ngā whakaritenga rerekē o ngā wai me ngā tikanga whakahaere.

Ngā Rauemi Arai Noa

1. Ngā Arai Rapa

 

• Rapa Taiao
  • He kōwhiringa whakarārangi utu-pai te rapa māori. He ngāwari pai tōna, e āhei ai te tu atu ki ētahi ahotea miihini i te wā tāutanga me te whakahaere. He pai mō te ine i ngā wai me ngā pāmahana iti, tae atu ki te 60 - 80°C. He ātete hoki te rapa māori ki ngā wairewa wai maha, ā, he mea rongonui mō ngā tono i roto i ngā ahumahi maimoatanga wai me te wai para. Hei tauira, i roto i tētahi tipu maimoatanga wai para ā-tāone, ka taea te whakamahi i ngā mita rere hikohiko kua whakarārangihia ki te rapa māori hei ine i te rere o te wai para mata, kei reira pea ētahi matū totoka me ngā momo matū i ngā pāmahana reo.
• Rapa Neoprene
  • He nui ake te ātete matū o te rapa neoprene ki te rapa maori. Ka taea e ia te ātete ki te mahi a ngā hinu, ngā wahie, me ngā matū maha. He maha ngā whakamahinga o ngā mita rere hikohiko kua whakakikoruatia ki te neoprene i roto i ngā mahi ahumahi ina pā pea te wai ki aua matū. Hei tauira, i roto i te umanga hanga motuka, i te ine i te rere o ngā wai whakamatao kei roto pea he ātete huka me ētahi atu tāpiringa, ka whakaratohia e te whakakikoruatanga neoprene he tiaki pono. Ko te awhe pāmahana mō ngā mita kua whakakikoruatia ki te neoprene he paku teitei ake i te rapa maori, tae atu ki te 80 - 100°C.
• Rapa Butyl
  • He tino pai te ātete o te rapa butyl ki ngā hau me te mamaoa wai. He tino ātete ki te whakaekenga matū, inā koa mai i ngā waikawa me ngā kawakore. Nā tēnei he pai mō ngā tono kei reira te waikura nui o te wai. I roto i te umanga matū, i te wā e ine ana i te rere o ngā otinga waikawa kaha, kawakore rānei, ko ngā mita rere hikohiko kua whakakikoruatia ki te rapa butyl te mea pai rawa atu. Ka taea e rātou te mahi i ngā pāmahana mai i te -40°C ki te 120°C, e whakarato ana i te matapihi pāmahana whakahaere whānui mō ngā tukanga ahumahi rerekē.

2. Ngā Whakatakotoranga Kirihou

 

• Pūhaumāota Polyvinyl (PVC)
  • He rauemi kirihou whānui te PVC e whakamahia ana. He iti te utu, ā, he pai te ātete ki ngā matū maha. He pai ngā mita rere hikohiko kua whakarārangihia ki te PVC mō ngā mahi i roto i te umanga kai me te inu, nā te mea kāore he paitini o te PVC, ā, e tutuki ana i ngā paerewa akuaku e tika ana. Hei tauira, i roto i tētahi wheketere whakaputa wai hua, ka taea te whakamahi i ngā mita rere kua whakarārangihia ki te PVC hei ine i te rere o te wai i te wā o te tukanga whakaputa. Heoi, he iti noa te awhe pāmahana o te PVC, tae atu ki te 60 - 70°C.
• Polyethylene (PE)
  • E mōhiotia ana te PE, inā koa te polyethylene kiato teitei (HDPE), mō tōna pakari me te ātete ki ngā matū. He maha ngā wā ka whakamahia ngā mita rere hikohiko kua whakarārangihia ki te HDPE i roto i ngā mahi kei reira pea ngā matūriki whakakoi i roto i te wai. I roto i te umanga keri, i te wā e ine ana i te rere o te paru (he ranunga wai me ngā matūriki totoka), ka taea e te whakarārangi HDPE te tu atu i te whakakoi i puta mai i ngā matūriki totoka. Ka taea e ngā mita kua whakarārangihia ki te PE te mahi i ngā pāmahana tae atu ki te 80 - 90°C, i runga i te momo motuhake o te polyethylene.
• Polytetrafluoroethylene (PTFE)
  • He kirihou mahi-teitei te PTFE, he ātete matū tino pai. Ka taea e ia te ātete ki ngā matū katoa, tae atu ki ngā waikawa kaha, ngā kawakore, me ngā whakarewa rauropi. Ka whakamahia ngā mita rere hikohiko kua whakarārangihia ki te PTFE i roto i ngā taiao tino waikura, pērā i te umanga rongoā ina ine ana i ngā otinga matū tino tauhohe. He tino iti hoki te tauwehenga waku o te PTFE, e āwhina ana ki te whakaiti i te piri o te wai ki te whakarārangi, kia tika ai te ine rere. He whānui te awhe pāmahana mō ngā mita kua whakarārangihia ki te PTFE, mai i te -200°C ki te 260°C, e pai ai mō ngā momo tono tairongo pāmahana.

3. Ngā Arai Uku

 

• Ngā Uku Arumina
  • He tino mārō, he ātete hoki ki te kakahu ngā uku alumina. He pai mō ngā mahi kei reira ngā matūriki tino whakakoi i roto i te wai. Hei tauira, i roto i te umanga sima, i te ine i te rere o te paru sima, kei roto ngā matūriki sima whakakoi, ka taea e ngā mita rere hikohiko kua whakakikoruatia ki te uku alumina te whakarato ratonga pono mō te wā roa. He pai hoki te ātete matū o ngā uku alumina, inā koa ki ngā waikawa me ngā kawakore i ngā pāmahana teitei. Ka taea e rātou te tu atu ki ngā pāmahana tae atu ki te 1000°C, e pai ai mō ngā tukanga ahumahi pāmahana teitei.
• Ngā Uku Zirconia
  • He tino pai ngā āhuatanga ā-pūkaha me te pumau matū o ngā uku zirconia. He ātete ake ēnei ki te ru wera ki ētahi atu rauemi uku. Ka whakamahia ngā mita rere hikohiko kua whakarārangihia ki te zirconia i roto i ngā tono ka tere te huri o te pāmahana o te wai. I roto i te umanga hanga karāhe, i te ine i te rere o ngā wai e pā ana ki te karāhe rewa, ka taea e te whakarārangi uku zirconia te tu atu i te taiao pāmahana teitei me te kaha o te matū, tae atu ki te ahotea wera pea i te wā o te tukanga.

Ngā Whakaaro mō te Kōwhiringa

I te wā e whiriwhiri ana i te momo arai mō temita rere hikohiko, me whai whakaaro ki ētahi āhuatanga. He mea nui te āhua o te wai, tae atu ki tōna hanganga matū, te pāmahana, te pēhanga, me te aroaro o ngā matūriki whakakoi. Mō ngā wai tino waikura, me whakamahi pea i ngā rauemi pēnei i te PTFE, i ētahi uku rānei. I roto i ngā tono me ngā wai whakakoi, he pai ake ngā arai ātete-kakahu pēnei i te rapa (mō ngā take iti ake te whakakoi) me ngā uku rānei. Me ōrite hoki ngā herenga pāmahana me te pēhanga o te rauemi arai ki ngā āhuatanga whakahaere o te mita rere. Hei tāpiri, me whai whakaaro ki te whai huatanga o te utu me te hototahi ki te pūnaha whānui, tae atu ki ngā irahiko me te tinana mita.

Hei whakamutunga, ko te whiriwhiri i te momo arai e tika ana mō temita rere hikohikoHe whakatau nui tēnei e pā tika ana ki te mahi, te roa, me te tika o te ine rere i roto i ngā tono ahumahi rerekē. Mā te āta whakaaro ki ngā āhuatanga o te wai me ngā āhuatanga whakahaere, ka taea te whiriwhiri i te rauemi arai tino tika hei whakarite i te mahi pono me te whai hua o te mita rere hikohiko.