Rakau pūmau: tikanga tito me ngā āhuatanga

He tokomaha hoki whakatika te pātai, he aha te tikanga o te reira ki "rakau pūmau." Kei te rawa tukinotia te reira i te rauemi, me te riro atu āhuatanga whakapaipai me te mauroa, e noho tonu i te tauira tūturu.

whakaahuatanga

Kei te maha hoki i huaina tenei momo o te maimoatanga tiaki, a tika pera, mai hoatu te mahi matua ko ki te tiaki me te whakapai ake i te kounga o te rakau. Ko taea whiwhi he hua taua i roto i te whakamahi o te rauemi motuhake e whakakiia ana nga kōputaputa me whakapakeke. Nga resins, polymer me te peita formulations, ngā hinu riro tino whānui.

rakau eu rawa absorbs te hanganga tae me tango i runga i te reo hou e kore anake i runga i te mata, engari ano hoki puta noa i te hanganga. He kōwhiringa ngā mō te poke i te taiao ki tae kanapa.

āhuatanga

Hoki hua tika titau faaineineraa mau i mua, me te haapa'oraa tupato ki nga tikanga katoa. Takitahi e kore e pera ngāwari ki te waihanga i te taumata e hiahiatia ana o te pēhanga, mārua, me te tetahi tikanga pāmahana engari tiaki riro taea kahore enei tikanga.

Tuatahi, e hiahia ana koe ki te tiki ake i te workpiece tika. I roto i te nuinga o te wā, tavini te reira rite te rauemi ki te modulations ataahua, me te hanganga, kia whai reira rerekē wao he: pereni, erema, pereni me te birch.

rakau pūmau He te āhuatanga e whai ake nei:

• pakeke;
• kiato;
• ātete ki ngā hinu me whakarewa organic;
• āhuatanga whakapaipai pai;
• pupuru ana rakau pūmau nga āhuatanga noa, ka wera tuwhera mura.

impregnation

kia tenei taahiraa e whakamana e ngā tikanga:

• Stabilization o te pēhanga tiketike. Hoki tenei whakaaro, ki tonu te ipu tīpakohia te ki te hanganga i roto i i rumakina te preform te. Katahi ka whakanohoia te ipu e i roto i te ruma motuhake i roto i i hangaia i te pēhanga nui haere te. pānga parau tumu Ko e tuha te hau i te workpiece, ka ki tonu te wāhi wātea kei te ki te paru.
• tukanga mārua. whakanohoia ana te rauemi i roto i te ruma i nei te muri mäminga i roto i te hau, a rite putaatu reira i te workpiece. Na te otinga ngāwari whakapoke tōiti me kōputaputa kau.
• Hot impregnation. Ko te rakau maoa te ranei waiwaitia i roto i formulations motuhake. Āhuatanga e te tikanga e whakamahia ana aro i te whakawera, reira nui te whakanui ake i te flowability me te whakakī kounga.
• impregnation makariri he kotahi tino pai mō workpieces kikokore.

polymerization

mutu tenei tukanga te tukatuka, me te e whakaputaina e whakamaroke hua i te pāmahana e hiahiatia ana. Kakau rakau ähuareka mō te whiwhi āhuatanga hou, hoatu te ōrite ki rauemi polymeric, rite taui te reira i tona kara, me te taimaha. Ko te kupu te kounga o te muka ko te taua, ratou ato'a whakatika otinga whakamahia i roto i te tukatuka, reira hanga ahua rangatira, me te huatau o te preform katoa. E tano ia tapao e etahi o nga taputapu i whakamahia i tēnei wā, rerekē samozatverdevaniya rawa.

Me pēhea te ki te ū te rakau maripi kakau

Ko e tika ana mō te hanga o ngā hua, me handicrafts te rauemi tukatuka. Kei te tino whakamahia nuitia te reira i roto i te hanga o kakau motuhake mō maripi.

Ko tētahi tito rongonui mō te tiaki i te "Anakrol-90", ringihia mata o te mea i roto i 90 nekehanga. Hoki rapua e mahi pūnaha mārua, e taea te hanga te reira o te wāhanga e whai ake nei: pēhanga mehua, hau compressor, mārua papu, maha o korere, ipu kirihou rahi nui o. I muri, maroke rakau ähuareka te i roto i te oumu motuhake, me tona ngaro e taea te whakamahi i Aerogrill oumu ranei.

whaea matotoru whakamahia e kore e nui 3-4 cm, he mea e tika ana mo-te kounga tiketike impregnation o te preform.

whakanohoia ana te pereti rakau i roto i te ipu ki te otinga, i me katoa taupokina ai a reira anakrolom. hanga te mārua te tae noa Na, tae noa mirumiru kore te hau i roto i.

I tua atu, i hanga te pēhanga teitei te, kia tu i te waihanga-mua hoki te hawhe haora. Me tae ake te taumata pēhanga ki 2-4 atm, me te reira ki te whakamahi i te papu, me te compressor. Me tukurua te tukanga i muri i 40 meneti. E kawea mahi i roto i rite te roa rite kore e te hua totohu i roto i te wai. I roto i tenei take, kahore he feaa he preform moe kounga.

Katahi te rakau pūmau ki ona ringa Kei te ata maroke te reira i te pāmahana o e pā ana ki 100 nekehanga. I muri kia ngaro ai wahi raw. Taua maimoatanga homai he rauemi kiato nui, me te whakapai ake orooro mahi. Ka taea te whiwhi tauira kauruku nonstandard mā te tāpiri i ngā uhi i roto i te hanganga. Hoki tenei ra, e taea te kitea i runga i te hoko rongoā rite-hanga ki te momo o tupapaku.

Hoatu kapia epoxy

He rite ki te tiaki ki te anakrola tenei tikanga, takoto te rerekētanga matua i roto i tona whakakapinga i te teriuma epoxy i konatunatua ki te waipiro. whakamahia te whakamutunga ki te whakapai ake i te kounga o te impregnation. Te mahi ki te uku titau manawanui, kia roa rite te polymerized reira ki te āhua e hiahiatia ana. He maha rongoā rerekē e hāngai ana i runga i kapia epoxy. Kainga rakau wahie hua i te whakamahi o taua hanganga ki te tohu nui o te fluidity, āhuatanga e te āhuatanga pai.