He haumitanga nui te hoko i tētahi mīhini whakarewa whatu waea, ā, mā te whiriwhiri i tētahi mea hē ka moumou taima me te moni i roto i te mahi whakaputa. Ehara i te mea ko te kimi i te mīhini iti te utu te mea nui, engari ko te mīhini e pai ana mō tō pakihi.

Mā tēnei aratohu koe e āwhina ki te whakatau whakaaro nui, whai hua hoki mā te whai whakaaro ki ngā āhuatanga matua e whā i mua i te hoko.

1. He aha te momo mata waea ka whakarewahia e koe? (Rahi me te whānui o te waea)

Ko te momo whatu waea e hiahiatia ana e koe te whakatau tika i te momo mīhini e hiahiatia ana e koe. Kāore e taea e te mīhini mama te whakarewa i te rino matotoru, engari he maumau te mīhini taumaha mō te whakarewa i te waea angiangi.

1.1. He mea nui te matotoru o te waea (te whānui o te rebar).

Koinei te mea tino nui. Ki te kore e taea e tō mīhini te whakahaere i te rino matotoru rawa, ka ngoikore ngā whakarewa, ka kino rānei te mīhini. Kaua e whakaititia ngā hiahia ā muri ake nei: Mena kei te whakamahi koe i te rino 8mm engari me hiahia pea koe ki te 10mm ā muri ake nei, me hoko e koe he mīhini whakarewa waea taumaha ka taea te whakahaere i te rino 12mm ināianei. Kia maumahara, whiriwhiria tonutia he mīhini he 20% teitei ake te kaha kawenga i ō hiahia o nāianei. Mā tēnei ka māmā ake te whakahaere i te mīhini, ā, ka whakaitihia te tere o te rahunga.

1.2. He aha te whānui o te mata waea ka taea e te mīhini te whakarewa? He aha te rahi mata iti rawa (ngā kōhao)?

E hiahiatia ana e tō mākete he mata waea 2.5-mita, 3-mita rānei te whānui? Mā tēnei ka whakatau i te rahi o te mīhini me te maha o ngā pane whakarewa.

Mena he iti rawa ngā mata e hangaia ana e koe (hei tauira, 50x50mm), ka tino teitei rawa ngā whakaritenga mō te tika o te whāngai me te whakarewa a te mīhini.

2. Te Kōwhiringa Hangarau me te Taumata Aunoatanga (Tere me te Kounga)

Ka pā tika te hangarau e whiriwhiria e koe ki te utu mahi me te kounga whakarewa whakamutunga o te mata waea.

2.1. Taumata Aunoatanga: Aunoa Katoa me te Aunoa-Haurua

E hiahia ana koe kia nui ake ngā mahi a ngā kaimahi, kia nui ake rānei ngā mīhini e mahi ana?

Aunoa Katoa: He pai mō te hanga nui, kore e mutu. Ka whāngaihia te waea tika mai i te koiri waea, kāore e hiahiatia he wawaotanga ā-ringa. Koinei te kōwhiringa pai rawa atu hei whakaiti i ngā utu mahi.

Āhua-Aunoa: He pai mō ngā wheketere he whānuitanga ngā hua me te rahinga whakaputa taurite. Ko ngā waea whakawhiti me whakanoho ā-ringa te rino kua whakatikatikahia, kua tapahia ki roto i te hopper.

2.2. Hangarau Whakarewa: Te Auautanga Waenga DC (MFDC) me te AC Tuku Iho (AC)

He mea nui tēnei mō te kounga o te whakarewa.

AC Tuku Iho (Au Hurihuri): He iti te utu, engari he pūmau te au whakarewa, ka tere ai te "whakarewatanga kāore i oti," inā koa ka whakarewahia he rino matotoru.

Pūwhakawhiti MFDC: Koinei te hangarau pai rawa atu e wātea ana i tēnei wā. Ka whakaratohia e ngā mīhini whakarewa whakawhiti MFDC he iahiko whakarewa pumau, tonu hoki. Mā tēnei ka whakarite kia kaha, kia pono hoki ia whakarewa, ā, ka penapena hoki i te 20%-30% i runga i te hiko. I te wā roa, ka taea e tēnei te penapena nui i a koe i runga i te hiko me ngā utu tiaki.

3. Putanga Tuturu me te Pono (Hua)

Ahakoa te iti o te utu o te mīhini e pakaru pinepine ana, e kore e āwhina i a koe ki te mahi moni. Me arotahi tātou ki te kaha whakaputa pumau, pumau hoki o te mīhini.

3.1. Tere Tuturu: Kaua e titiro noa ki te pānuitanga.

Kaua e whakapono noa ki te "tere mōrahi" i roto i te pukapuka iti. Tukua he tono: Tonoa te kaihanga kia homai te putanga pumau mō ō whakaritenga mata e hangaia pinepine ana (hei tauira, mata 6mm, 150mm x 150mm). He mea nui ake te whai huatanga o te whakaputa pumau i ngā tere tihi i ētahi wā.

Ngā Kaihanga Tere-Teitei: Mā ngā kaihanga mīhini whakarewa tere-teitei pono e whakarite kia tino ōrite te tapahi, te whāngai waea, me te whakarewa i ngā tere teitei, me te kore e whakaroa tetahi i tetahi.

3.2. Te Pakari me te Tiaki i te Mīhini: He pai ngā wāhanga e whakamahia ana e te mīhini?

Tirohia te Waitohu: Tirohia mēnā kei te whakamahia ngā waitohu rongonui o te ao (pēnei i a Siemens, Schneider Electric) e ngā wāhanga matua o te mīhini (hau, hiko). Mēnā he pai ngā wāhanga, he iti ake ngā pakaru.

Pūnaha Whakamatao: Me whakarite he pūnaha whakamatao wai pai tō te mīhini. Ki te kore e pai te tohatoha wera o te whakawhiti whakarewa me ngā irahiko, ka tere te wera, ka roa pea te wā e kore ai e mahi.

4. Te Mahi Tahi a te Kaiwhakarato me te Tautoko i Muri i te Hoko

He tīmatanga noa iho te hoko i te mīhini; ko te kimi i tētahi hoa pai te whakamana mō te wā roa.

4.1. Te Rongonui o te Kaihanga me ngā Akoranga Take

Rongonui: Rapua ngā kaihanga he ingoa pai, ā, he angitu hoki ā rātou rangahau take kiritaki. Ko te mea pai, me kite koe i ngā tauira o rātou e whakaoti rapanga ōrite ana māu.

Ngā Wāhanga Eke: Uiui mō te rarangi taonga me te tere tuku o ngā wāhanga e pau ana (pērā i ngā hikohiko me ngā taputapu tapahi). Ka hua ake ngā mate whakaputa i te wā e kore ai e mahi te mīhini, he nui ake i te utu o ngā wāhanga eke.

4.2. Te Tāutanga me te Whakangungu

Ratonga i te Papa: Whakaūtia mēnā ka whakaratohia e te kaihanga he whakangungu tāutanga, he whakangungu whakahaere, me te whakangungu whakahaere i te papa e ngā miihini. Ahakoa ngā mīhini pai rawa atu, e kore e mahi tika mēnā ka tāutahia, ka whakahaeretia rānei i te hē.

Tautoko Mamao: Ina hē te mīhini, ka taea e te kaihanga te whakarato tātaritanga mamao me te ārahi mā te ipurangi? Ka taea e tēnei te penapena i te wā tatari me ngā whakapaunga haere.

Hei whakarāpopototanga: Te haumi whakaaro nui.

Ehara i te mea ko te whakataurite noa i ngā utu te whiriwhiri i tētahi mīhini whakarewa whatu waea, engari ko te tatau i te hokinga mai o te haumitanga mō te wā roa (ROI). Tērā pea he nui ake te utu tīmatanga mō tētahi mīhini tino aunoa e whakamahi ana i te hangarau MFDC, engari nā te mea he pai ake te whakamahi i te pūngao, he iti ake ngā kaimahi e hiahiatia ana, ā, he iti ake te reiti rahunga, ka nui ake ngā hua ka puta mai, ka kaha ake hoki te whakataetae i ngā tau e haere ake nei.