Te Hua o te Pakaru o te Rōra Pēhi i ngā Koha Whakarewa i roto i ngā Mira Ngongo ERW
Ko ngā wheketere ngongo rino, kāore i te nuinga o te wā, e aukati ana i te whakaputanga nā te mea kua pā mai he hinganga nui kotahi.
I te nuinga o te wā, ka tīmata ngā raruraru i ngā huringa iti kāore tetahi e aro nui ana ki aua huringa.
Ka paku koretake te hononga whakarewa.
Ka tīmata ngā kaiwhakahaere ki te whakarerekē i te iahiko whakarewa i ngā wā katoa.
He wera ake te āhua o ngā roera i te tikanga.
Ka puta he wiri ngoikore huri noa i te wāhanga pēhi.
Kātahi ka ngatata te whakarewa i te wā whakamātautau wai.
Ka huaki rānei te tuitui i muri i te whakapapatahitanga.
Kātahi ka huri te raruraru i āhua "iti noa" hei para, hei wā kore mahi, hei amuamu hoki a ngā kiritaki.
I roto i te maha o ngā mira ngongo ERW, ko te kakahu o te roera pēhi te tino take o aua take.
Ehara i te mea he utu nui te roera.
Engari nā te mea ka rerekē te pēhanga pēhitanga kore pumau i te āhua whakarewa katoa.
Ka mutu te hanga ōrite o ngā taha rīpene. Ka neke te kukū wera. Ka koretake te koki-V. Ka tīmata ngā peera ki te kawe i ngā kawenga rerekē. Ka piki haere te nekehanga tuaka tae noa ki te kore e taea te matapae i te kounga o te whakarewa.
He maha ngā wheketere e whakapae tuatahi ana i te mīhini whakarewa HF.
I ētahi wā ka whakakapia e rātou ngā tokotoko ferrite.
I ētahi wā ka whakarerekētia anō e rātou ngā tautuhinga auau.
Engari ko te raru tūturu ko te kore pumau o te miihini i te wāhi e pēhia ana.
He maha ngā wā ka warewarehia taua wāhanga.
Ngā mira ngongo hou mai i Mīhini Ngongo MIVI kia nui ake te aro ki te pakari o te pēhitanga, te pumau o te whakaritenga roera, me te ōritetanga o te pēhanga nā te mea ka pā tika ēnei āhuatanga ki te kounga o te whakarewa i te wā e mahi tonu ana te whakaputanga

Ngā Tohu Tūatahi o te Maumau o te Rōra Pēhi
Ko te tohu tuatahi ehara i te hinganga nui.
He rerekētanga.
Ka maeneene te whakapiri o te koiri kotahi.
Ka whakaatu ohorere te koiri e whai ake nei i te piki me te heke o te pūwero.
Ka kite ngā kaiwhakahaere i te āhua o te pītiti whakarewa ahakoa kāore i tino rerekē te whakatakotoranga rauemi.
I ētahi wā ka neke haere te rārangi tuitui ki maui, ki matau rānei.
I ētahi wā ka puta te ngongo i te wāhanga whakarewa me ngā tohu wiri e kitea ana.
Ko tētahi atu tohu noa ko te tangi rerekē mai i te huihuinga pēhi.
Kāore i te haruru i te tīmatanga.
He rite ki te haruru o te peera taupua.
Kātahi ka piki te pāmahana huri noa i te whare whāriki.
Ka tere ake te tahu o te hinu whakahinuhinu.
Ā tōna wā, ka puta ngā tohu pakaru kore ōrite ki te mata o te roera.
I tēnei wā, kāore e taea te karo i te pēhanga pumau.
Kāore te kaha pēhi e noho tonu ki waenganui i ngā taha o te rīpene.
He pānga tika tēnā ki te kounga o te hanga i te wā e hanga ana i te whakarewa auau-tiketike.
Ā, ina kore e pumau te pēhanga, ka memeha haere te āhua o te whakarewa.
Ko ngā wheketere e hanga ana i ngā ngongo pakitara-angiangi ka kite wawe i tēnei nā te mea ka tere ake te tauhohe a te rauemi angiangi ki te piki me te heke o te pehanga.
He nui ake te pānga o tēnei ki ngā raina whakaputa tere-rahi.
I ētahi mira tawhito, ka kitea te nekehanga tuaka i te wā e whakamahia ana.
Ka neke paku te kakau roera i te wā e hurihuri ana.
Kāore e ranea hei whakamutu tonu i te mīhini.
He nui hei whakapōrearea mārire i te pumau o te whakarewanga.

He aha te take e kore ai e pumau te whakarewanga nā te kino o te peera
I roto i te maha o ngā mira ngongo, ka mahi ngā peera roera pēhi i raro i te wera tonu, te wiri, me te kaha porowhita taimaha.
Kia heke te āhua whakahinuhinu, ka tīmata te piki haere o te āputaputa o te peera.
Kāore te roera e hurihuri tino tika ana ki te kokonga porowhita.
Ka kore e taurite te pēhanga.
Ka whakawhiti tika te wiri ki te rohe whakarewa.
Ka huri anō hoki te āhua o te pā o te roera me te taha rīpene ina pakaru te peera.
Koinei te tīmatanga o te hanga pūmau.
Kei te haere tonu te mahi a ētahi wheketere i muri i te rongonga i te haruru o te peera nā te mea kei te "haere tonu te raina" i te tikanga noa.
Engari ko te kore pumau o te whakarewa ka puta mai i mua noa atu i te pakaru katoa o te peera.

Te Pānga o te Nekehanga Tuai ki te Kounga o te Tuitui Whakarewa
Ko te nekehanga tuaka tētahi o ngā raruraru e kore e arohia e ngā kaiwhakahaere.
Ahakoa te iti o te nekehanga o te kakau ka pā ki te āhua o te pēhitanga.
Ina neke te roera ki maui, ki matau rānei i te wā e mahi ana, ka rerekē tonu te pēhanga o ngā taha.
Ko te tikanga tēnei kāore e tūtaki ngā taha o te rīpene wera i raro i te kaha pumau.
Ka heke tonu te matotoru o te whakarewa.
Ko ngā take noa ko:
- ngā nohoanga whīra kua tawhito
- nati raka wetekina
- te mau o te pou
- te koretake o te tika o te huihuinga
- ngenge wiri mō te wā roa
I runga i ngā mira ERW tere-teitei, ka nui haere te kino o tēnei nā te mea ka piki haere te whakanui o te wiri i te tere.
Kāore i te rawaka te pakari o te hanganga o ētahi mīhini tawhito huri noa i te anga pēhi.
Koia tētahi take he mea hou ake ngā mira ngongo aunoa te aro nui ki te pumau o te anga me ngā pūnaha whakarite tika
Ngā Tikanga Tirotiro mō ngā Koha Whakarewa ERW
Ka tere ake te pakaru o ngā roera i te nui rawa o te pēhanga.
Ki te iti rawa te pēhanga ka ngoikore ngā hononga whakarewa.
He uaua ake te kimi i te taurite pumau i tā te nuinga o ngā wheketere e whakaaro nei.
Ina koa ka huri pinepine te kounga o te koiri.
Ki te mea rānei kua tīmata kē te kakahu o te roera.
Tērā pea ka puta te kore pumau o te pēhanga i te piki me te heke o te waipēhi.
Engari ko te ngoikore o ngā mīhini te tino take nui.
Ka huri anō hoki te tohatoha kaha puta noa i te taha rīpene i te kore taurite o te kakahu o te mata roera.
Ka puta he mahi hanga koretake ahakoa kāore anō kia rerekē te mana whakarewa.
Ka whakanuia tonutia e ētahi kaiwhakahaere te iahiko whakarewa hei whakaea.
Ko te tikanga ka nui ake ngā raruraru:
- nui rawa te pūngāwerewere
- wera nui
- te wera o te taha
- te roa o te ora o te roera
Whakamātautau me te Tirotiro
Ahakoa te āhua pai o te ngongo mai i waho, kāore anō kia pumau te kounga o te whakarewanga o roto.
Koia te take he mea nui te tirotiro.
Ina koa i muri i te puta mai o ngā raruraru o te roera pēhi.
Whakamātautau Wai
Whakamātautau wai he maha ngā wā ka tere te whakaatu i te kore pumau o te whakarewa.
Ko ngā paipa e hangaia ana i raro i te pēhanga kore pumau, ka pakaru pea i raro i te pēhanga o roto ahakoa te āhua pai o te mata.
Ka kitea te iti o te rerekētanga o te hanga i te wā e pupuri ana i te pēhanga.
He mea noa te turuturu huri noa i te hononga whakarewa.

Whakamātautau Whakapapatahi
Mā ngā whakamātautau papatahi ka kitea ngā raruraru ngāwari huri noa i te wāhi whakarewa.
Nā te kore e pai te pēhitanga, ka kore e oti te hononga i waenga i ngā taha o te rīpene.
I te wā e papatahi ana, ka pakaru pea te tuitui i mua atu i te wā i whakaarohia ai.
Ko ngā wheketere e hanga ana i ngā paipa hanganga he maha ngā wā ka whakawhirinaki nui ki tēnei whakamātautau nā te mea e whakaata tika ana i te pono o te whakarewanga.
Tirotiro UT
He maha ngā mira hou e whakauru ana i ngā pūnaha tirotiro ultrasonic ki ngā raina whakaputa.
Mā tēnei ka taea te kite tonu i ngā hapa o roto o te whakarewa, kaua e tatari mō te tirotiro tūpono tuimotu.
ētahi raina whakaputa matatau mai i Mīhini Ngongo MIVI kua whakauruhia kētia ngā pūnaha tirotiro ipurangi hei whakapai ake i te pono o te whakarewa i te wā e mahi tonu ana.
Ka tino whai hua te tirotiro UT ina puta mai i te kore pumau o te pēhitanga:
- te whakakotahitanga kāore i oti
- ngā pakaru o roto
- pūngao
- te urunga koretake
He uaua te kite i aua hapa mā te tirohanga.
Me pēhea te whakaiti i te rahunga o te roera pēhi
Kāore e taea te whakaoti i te raruraru i ngā wā katoa mā te whakakapi noa i ngā roera.
Mena kua pakarukaru kē te hanganga o te mīhini, kua he kē rānei te tūnga, ka tere anō te pakaru o ngā roera hou.
Koia te take e tirotirohia ngātahitia ai e ngā wheketere mātau te pūnaha pēhi katoa.
Ehara i te mata o te roera anake.

Whakapai ake i te Pūmautanga o te Tukanga
He wāhanga hanga pumau ka whakaiti i te ahotea koretake i runga i ngā roera pēhi.
Kei roto i tēnā:
- te whakarite pai ake i te taha rīpene
- te mana whakahaere V-koki pumau
- te wiri iti
- te aroturuki rīpene maeneene
Ina pumau te hanganga, ka pumau ake hoki te kawenga pēhi.
Ka pai ake te ora o te roera.
Ngā Tawhā Arotau
He maha ngā raruraru pēhitanga e puta mai ana i te tatūnga hē.
Ko ngā tautuhinga pēhanga kaha rawa, kāore pea e whakaatu wawe i te rahunga.
Engari ka tino poto haere te ora o te pēpi i te roanga o te wā.
Me whakauru ngā whakaritenga tika:
- te kaha pēhi
- tere whakarewa
- Te whakataurite i te mana HF
- te whakarite roera
- kawenga mua o te peera
Me āta aroturuki ēnei tautuhinga e ngā wheketere e whakahaere ana i ngā rahi ngongo maha nā te mea he rerekē ngā kawenga pēhi ka puta mai i ngā whakatakotoranga rerekē.
Whakapai ake i te Hanganga Taputapu
He maha ngā wā ka raru ngā mira tawhito i te pakari.
Ina koa i muri i ngā tau maha o te mahi tonu.
Ka āta piki haere te rerekētanga o te anga, te pakaru o te pou, me te ātea o te huihuinga.
Koia te take he mea hou ake Ngā mira ngongo ERW kei te aro nui ake inaianei ki te tika o te hanganga me te whakahaere pumau aunoa.
Ngā mīhini mai i Mīhini Ngongo MIVI whakamahia ngā hanganga whakapakari, ngā pūnaha roera tino tika, me ngā whirihoranga hanga pumau i hangaia mō ngā huringa whakaputa roa me te kounga whakarewa pumau.
Mō ngā wheketere e whakahaere ana i te hanga tere-rahi, ka tino kitea taua rerekētanga i muri i ngā hāora roa o te mahi.
Ngā Otinga Mira Ngongo ERW e Manakohia ana
Ngā mira ngongo i hangaia kia kaha ake te pēhitanga, ā, ko te tikanga ka mau tonu te pumau o te whakarewatanga i roto i te wā.
Ina koa i ngā taiao whakaputa tonu e kore rawa e mutu te wiri, te wera, me te rerekētanga o te kawenga.
Ngā raina whakaputa ERW aunoa hou mai i Mīhini Ngongo MIVI tautoko:
- te whakarite pēhi pumau
- te hanga tika
- te whakaputa tere-teitei
- whakaurunga tirotiro ipurangi
- whakakapinga roera tere
- ngā pūnaha whakahaere aunoa
Ā rātou raina whakaputa hipokina te hanga ngongo porowhita, tapawhā, me te tapawhā hāngai puta noa i ngā rahi paipa me ngā awhe matotoru rerekē.
Mō ngā wheketere e ngana ana ki te whakaiti i ngā hapa whakarewa me te wā kore mahi tiaki, ehara te pumau o te pēhi i te mea he āhuatanga miihini noa iho.
Ka pāngia te hua whakaputa katoa.

Ngā Otinga Mira Ngongo ERW e Manakohia ana
Kāore i te tino kitea te pakaru o te roera pēhi hei hapa nui kotahi.
Ka āta hanga.
Ka piki ake te ātea o te peera.
Ka nui haere te nekehanga tuaka.
Ka memeha haere te pumau o te pehanga.
Ā tōna wā ka tīmata te hononga whakarewa ki te kōrero i te pūrākau.
Ko ngā wheketere e whakaoti wawe ana i ēnei raruraru he iti ake te utu mō ngā mahi tiaki, he pumau ake te hanga o ngā whakarewa, ā, ka karohia te wā kore mahi e hiahiatia i muri mai.
Ā, i roto i te hanga ngongo ERW, ko te whakarewa pumau ka tīmata i te nuinga o te wā me te pēhanga pēhi pumau.
-
1. He aha ngā take e pakaru ai te roera pēhi i roto i ngā mira ngongo?
-
2. He aha te pānga o te kakahu o te roera pēhi ki te kounga o te whakarewa?
-
3. He aha ngā tohu o te pakaru o te peera roera pēhi?
-
4. Me pēhea te whakaiti i te rahunga o te roera pēhi e ngā mira ngongo?
Mā te tirotiro i ngā peera i ia wā, te whakarite tika, te pēhanga pēhi pumau, me te pakari ake o te mīhini ka āwhina i te whakaiti i te kakahu o te roera pēhi me te whakapai ake i te pumau o te whakarewa. -










