Homeliness, Hanga
Kia pehea te taimaha ko te kupiki o rimu i runga i te haumākū?
I roto i te ora i reira he āhuatanga, ka fehangahangai ki te mau rave'a ohie, ngā pātai, engari te whakautu ki a ratou rite kore e taea te hoatu. I roto i te hanga, hei tauira, Me ki whakahoki te pātai kia: e hia mita pūtoru o e ata pine? Ko te whakahoki tangohia hoatu tonu kahore tetahi taea. Taumaha o rakau i roto i te wahi tuatahi tei runga i to ratou momo. Ko te take nui tuarua, ko te haumākū. Ko te momo rakau, tei runga i tona kiato, e, i roto i te tahuri, tika pānga te taimaha.
I roto i te take o te hiahia ki te mohio te mōhiohio e hiahia ana koe, kia kite a te nui taimaha pine pūtoru. Ka taea e kia whai hua tenei ka hoko he rakau, kia tino e e haponohia tika nga taonga.
Hia mita pūtoru o e ata paina
Tātaihia he ngāwari te taimaha o te rakau. Me koe ki te mohio i tona rahi, ihirangi makuku me te mātotoru. Wood kiato ko te toharite o 500 kg / m 3 i haumākū paerewa o te 12%.
E wehea tohu haumākū ki wha taumata:
- maku (45%);
- Faufau (25 ki te 44%);
- hau-maroke (19 ki te 24%);
- maroke (10 ki te 18%).
Na rakau paina pūtoru - ko te nui o tenei? E māngai nga hua whiwhi i roto i te puka o te tepu.
ihirangi makuku rakau | maroke (Mai i te 1 ki te 5%) | Paerewa (10 ki te 12%) | 15% | 25% | 35% | 45% | 55% | 65% | 75% | 85% | 78-90% | 100% |
Hia mita pūtoru o e ata paina | 480 | 505 | 510 | 530 | 570 | 615 | 660 | 700 | 740 | 790 | 750-820 | 850 |
Taumaha i runga i nga momo o te rauemi raw
He maha ngā momo o te paina:
- hita;
- Siberian;
- noa.
rerekē ara Taumaha rakau i ona momo. Ki te nga uara mo te hita Siberian me te taua, he rerekē i ratou i te taimaha noa. Whika i roto i te ripanga i runga, he motuhake mō te paina Scots.
Ko te taimaha o tetahi mita pūtoru me te rimu kohatu Siberian aroaro i roto i te ripanga i raro nei:
ihirangi makuku rakau | 15% | 35% | 55% | 75% | 95% |
Hia mita pūtoru o e ata paina | 440 | 495 | 565 | 640 | 715 |
Na, e matau te ihirangi makuku o te rakau, me nga tepu ngāwari ki te whakatau i tona taimaha. Ko te ara tino ohie tenei. Kei te maha peheé tepu whakamahia i roto i te hanga, te wahi mahi i te rauemi taketake rite te rakau. te āwhina ratou ki te whiriwhiri i te kōwhiringa pai o rakau mo te hanganga o te whare.
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