Hangarau tuwhera o te rakau motuka

Temōtahe takoto kau te kakau, he pai te mahi whakamarara wera, ā, ka taea te whakatairanga i te mama o temōta.I mua, he totoka te nuinga o ngā toki mōtini, engari nā te whakamahinga o ngā toki mōtini, he maha ngā wā ka aro te ahotea ki te mata o te toki, ā, he iti noa te ahotea ki te uho. E ai ki ngā āhuatanga piko me te takahuri o te miihini rauemi, ko te wāhanga o roto o temōtai tika te poka o te rakau, ā, he iti noa te whānui o waho i hiahiatia hei whakanui ake i te wāhanga o waho. Ka taea e te rakau poka te whakatutuki i te mahi me te mahi rite ki te rakau totoka, engari ka taea te whakaiti i tōna taumaha. I taua wā, nā te poka o temōtaKa taea e te hinu whakamatao te tomo ki roto i te rakau motuka, ka whakanui ake i te horahanga wera me te whakapai ake i te pai o te wera. I raro i te ia o nāianei o te utu tere ngaohiko teitei 800V, he nui ake te painga o ngā rakau motuka tuwhera. Ko ngā tikanga whakaputa o nāianei mō ngā rakau motuka tuwhera ko te whakakohao rakau totoka, te whakarewa, me te hanga whakauru, ā, i roto i ēnei e whakamahia whānuitia ana te whakarewa me te hanga whakauru i roto i te whakaputa.

Ko te nuinga o te wā ka tutuki te mahi whakapūtanga o te rakau kōhao mā te hanga whakapūtanga hei whakatutuki i tētahi kōhao o roto o te rakau, kātahi ka mīhinihia, ka whakapūtangahia kia rite ki te āhua. Mā te whakapūtanga whakapūtanga, ka mau tonu ngā huringa āhua o te kōhao o roto me ngā whakaritenga hanganga me te kaha o te hua. I te nuinga o te wā, ka taea te hoahoa i te matotoru o te pakitara taketake o te hua i raro i te 5mm. Ko ngā taputapu whakapūtanga he whakapūtanga waku papa, he whakapūtanga laser rānei. Mena ka whakamahia te whakapūtanga waku papa, ko te tūranga o te hononga papa he tata ki te 3mm te whānui o te whakapūtanga. Mā te whakamahi i te whakapūtanga laser, ko te hohonutanga whakapūtanga kei waenganui i te 3.5 me te 4.5mm, ā, ka taea te whakamana i te kaha o te whakapūtanga kia neke atu i te 80% o te papa. Ka taea e ētahi kaiwhakarato te whakatutuki i te neke atu i te 90% o te kaha o te papa mā roto i ngā tikanga whakahaere tukanga tino pakari. I muri i te otinga o te whakapūtanga o te rakau kōhao, me whakahaere he whakamātautau ultrasonic, he whakamātautau hihi-X rānei i runga i te hanganga moroiti me te kounga whakapūtanga o te wāhi whakapūtanga hei whakarite i te ōritetanga o te hua.

Ko te nuinga o te wā, ko te hanga i te rakau kōhao whakauru ka hangaia mā roto i ngā taputapu o waho i runga i te papa, ka taea ai e te wāhanga o roto te whakatutuki tika i te kōhao o roto o te rakau. I tēnei wā, ko te hanga radial me te hanga hurihuri te nuinga e whakamahia ana, ā, ko te nuinga o ngā taputapu he mea kawemai. Ko te hanga radial te mea noa i ngā taputapu a te kamupene FELLS, ko te hanga hurihuri ia he mea noa i ngā taputapu a te kamupene GFM. Ko te hanga radial ka tutuki mā te whakamahi i ngā hama ōrite e whā, neke atu rānei, i te auau neke atu i te 240 ngā whiu ia meneti hei whakatutuki i te iti o te whakarerekētanga o te papa me te hanga tika i te ngongo kōhao. Ko te hanga hurihuri te tukanga o te whakarite ōrite i ngā pane hama maha ki te taha porowhita o te pereki. Ka huri te pane hama i te tuaka i te wā e mahi ana i te hanga auau teitei radial i runga i te wahi mahi, ka whakaiti i te rahi whakawhiti-wāhanga o te pereki me te toro atu ki te tuaka hei whiwhi i te wahi mahi. Ki te whakataurite ki ngā rakau totoka tuku iho, ka piki ake te utu hanga o ngā rakau kōhao whakauru mā te 20% pea, engari ko te taumaha o ngā rakau motuka ka whakaitihia mā te 30-35%.