Pūrere Tepe Wai-a-ringa
- Whakaahuatanga Hua
Pūrere Tepe Wai-a-ringa
Ka whakamahia te Pūrere Tepe Wai-a-ringa (Casagrande) ki te whakatau i te makuku e rere ai nga oneone uku mai i te kirihou ki te ahua wai.Kei roto i nga taputapu he karaka me te miihini kaera, he porotiti pupuhi me te kapu parahi ka taea te whakauru ki te turanga.
Ka whakamahia te mita tepe wē momo rihi hei ine i te tepe wai o te oneone.He taputapu e whakamahia ana mo te hoahoa me te hanga kia taea ai te whakarōpū i nga momo oneone, te tatau i te riterite maaori me te taupae kirihou.
Te tukanga whakamatautau
1. Kuhua te tauira o te oneone ki roto i te rihi whakaeto, tapirihia te 15 ki te 20 ml o te wai maturu, ka oho me te pokepoke ki te maripi whakatikatika oneone kia tino ranu, katahi ka tapirihia te 1 ki te 3 ml wai ia wa, ka uru pai. kia rite ki te tikanga o runga ake nei.katoa.
2. I te wa e konatunatuahia ana te oneone ki te wai e tika ana kia rite, he rite ki te 30 ki te 35 nga wa e tika ana kia whakakotahi.Tuhia tetahi wahi o te whakapiri uku ki roto i te rihi i runga ake ka pa te rihi ki te pereti o raro.Whakamahia he maripi whakatikatika oneone hei pehi i te whakapiri oneone ki tetahi ahua, kia tupato ki te pehi i nga wa poto ka taea, me te aukati i nga pupuhi kia uru ki roto i te whakapiri oneone.Whakamahia he maripi whakatikatika oneone hei whakaene i te mata o te whakapiri oneone, a ko te wahi tino matotoru o te whakapiri oneone he 1 cm te matotoru.Ka whakahokia te taikaha o te oneone ki te rihi whakaeto, ka tapatapahia te whakapiri oneone i roto i te rihi ki te taha o te diameter me te riu mai i te peepi kamera.Ka hangaia he mokamoka kua tino tautuhia.Kia kore ai e pakaru te mata o te riu, kia kore e hee te whakapiri oneone ki roto i te rihi, kia ono nga whiu mai i mua ki muri, mai i muri ki mua ki te whakakapi i te riu kotahi, ka whakahohonu haere ia whiu tae noa ki te wa whakamutunga.Ko te whakapiri nui ki raro o te rihi me tohu i nga wa poto ka taea.
3. Hurihia te kakau crank F i te tere o te 2 hurihanga ia hekona kia piki ake te pereti oneone kia pa atu nga haurua o te whakapiri oneone ki raro o te riu mo te 1/2 inihi (12.7 mm).Tuhia te maha o nga whiu e hiahiatia ana mo te 1/2 inihi te roa o te whakapiri ki raro.
4. Tapahia tetahi wahi oneone e tika ana ki te mokowhiti mai i te taha oneone ki te taha, ko te whanui he rite tonu ki te whanui o te maripi tapahi oneone, tae atu ki te oneone i te waahi kati, hoatu ki roto i te pouaka pauna tika, paunatia ka whakakotahitia.Tuhia.Tunua ki te taumaha tonu i te 230°±9°F (110°±5°).I muri tonu i te whakamatao me i mua i te ngotea i roto i te wai whakauru, paunatia.Tuhia te mate taimaha i muri i te whakamaroke hei taumaha wai.
5. Nekehia te toenga o te oneone i roto i te rihi ki te rihi whakaeto.Horoi me te whakamaroke i te rihi me te groover, ka utaina ano te rihi mo te whakamatautau ka whai ake.
6. Whakamahia nga mea oneone kua nekehia ki te rihi whakaeto ki te taapiri wai hei whakanui ake i te rere o te oneone, me mahi kia rua atu nga whakamatautau kia rite ki te tikanga o runga ake nei.Ko te kaupapa kia whiwhi tauira oneone rereke te rite, me te maha o nga pata e hiahiatia ana kia rere tahi nga hononga o te whakapiri oneone neke atu i te 25 nga wa.Ko te maha o nga pata ka riro mai i waenga i te 15 me te 35 nga wa, a ko te tauira o te oneone ka mau tonu mai i te ahua maroke ki te ahua maku i roto i te whakamatautau.
7. Tatautanga
a Tātaihia te ihirangi wai WN o te oneone, ka whakaatuhia hei ōrau o te taumaha o te oneone maroke;
WN=(taimaha wai×taimaha oneone maroke)×100
8. Tuhia te ānau rere kirihou
Tuhia te 'piko rere kirihou' ki te pepa haurua-raupapa;e tohu ana i te hononga i waenga i te nui o te wai me te maha o nga pata riu.Tangohia te ihirangi wai hei abscissa ka whakamahi i te tauine pangarau, ka whakamahi i te maha o nga takahanga hei taurangi me te whakamahi i te tauine arorau.Ko te arai rere kirihou he raina tika, e tika ana kia toru, neke atu ranei nga waahi whakamatautau ka taea.
9. Te rohe wai
I runga i te rerenga rerenga, ko te wai i roto i te 25 pata i tangohia hei tepe wai o te oneone, ka whakaawhiwhia te uara ki te tauoti.
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