Porowini maitai piauauko te aukati i te waikura i runga i te mata o te pepa rino me te whakaroa i tona oranga mahi.Ka pania te mata o te pepa rino ki te paparanga konutea whakarewa.Ko tenei ahua o te peera maitai piauau / coil ka kiia ko te pepa piauau / coil.Ka rumakina te porowhita maitai angiangi ki roto i te taika konutea whakarewa, kia piri ai he paparanga konutea ki te mata.I tenei wa, ko te nuinga o nga mea ka puta ma te mahi piauau tonu, ara, ko te rumaki tonu i te pepa rino poroporoaki ki roto i te tanki piauau me te konutea whakarewa hei hanga i te pepa rino/coil.
Me pēhea te ki te caculate piauau te taimaha pōkai maitai?tātai tātai taumaha o te pōkai rau piauau :
M(kg/m)=7.85*whanui(m)*te matotoru(mm)*1.03
Hei tauira: matotoru 0.4*1200 te whanui: taumaha(kg/m)=7.85*1.2*0.4*1.03=3.88kg/m
Me pai te ahua o te piauau piauau, a kaore he hapa e kino ana ki te whakamahi i te hua, penei i te kore whakakikorua, he kohao, he kapiti, he paru, he nui te matotoru o te whakakikorua, he karawarawa, he paru waikawa chromic, he waikura ma, me era atu. .Kare i tino marama nga paerewa o tawahi mo nga kohatanga ahua motuhake.Ko etahi hapa motuhake me whakarārangihia i roto i te kirimana ina ota.